CN100489613C - Backlight assembly and its light source assembly - Google Patents
Backlight assembly and its light source assembly Download PDFInfo
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- CN100489613C CN100489613C CNB2004100065322A CN200410006532A CN100489613C CN 100489613 C CN100489613 C CN 100489613C CN B2004100065322 A CNB2004100065322 A CN B2004100065322A CN 200410006532 A CN200410006532 A CN 200410006532A CN 100489613 C CN100489613 C CN 100489613C
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- 239000004973 liquid crystal related substance Substances 0.000 description 3
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Abstract
The invention relates to a back light die set and the light source die set. The light source die set is mainly made up of light mixing pipe, several brightening elements, the first light deflecting device and the second light deflecting device. The light mixing pipe has the first end face and the second end face, the brightening element is arranged in the light mixing pipe. The first and the second light deflecting devices are connected to the first and the second end faces, and they have the first and the second light outgoing sections. Thus, the light transmitted by the brightening element can be transmitted to the second light deflecting device by the light mixing pipe, and then sent off from the first and the second outgoing sections. The light source die set can emit light with even color and brightness. Because the needed light mixing distance is short, the integral volume is small; it can be applied to brightening device.
Description
Technical field
The present invention relates to a kind of module backlight (module), particularly relate to a kind of module backlight and light source module thereof that sends even color and briliancy.
Background technology
Along with industry is flourishing day by day, digitization tools such as mobile phone, digital camera, digital camera, mobile computer, desktop PC develop towards direction more convenient, multi-functional and attractive in appearance invariably.Yet the display screen of mobile phone, digital camera, digital camera, mobile computer and desktop PC is indispensable man-machine communication interface, and the display screen by the said goods can bring more facility for user's operation.In recent years, the display screen on most mobile phone, digital camera, digital camera, mobile computer and the desktop PC is a main flow with display panels (LCD panel) all.Yet, because display panels itself does not have luminous function, so below display panels, must provide a module backlight (back lightmodule) to provide liquid crystal panel required area source, make liquid crystal panel reach the effect of demonstration, and obtain enough brightness and contrast simultaneously, and then reach the function of demonstration.
It should be noted that module backlight is divided into two kinds of side incident type and straight-down negatives usually.Wherein, the module backlight of side incident type needs by a light guide plate (light guide plate), line source is converted to the required area source of liquid crystal panel.In addition, because light emitting diode has high color saturation, not mercurous, high life, low heat problem, can adjust characteristic such as colour temperature by drive current, so the light emitting diode array is applied in the module backlight gradually.
Please consult simultaneously shown in Figure 1A and Figure 1B, Figure 1A is the side-looking diagrammatic cross-section that has the module backlight of known side incident type now, and Figure 1B is the schematic perspective view that has the module backlight of known side incident type now.In the existing known lateral incident type backlight module 100, light emitting diode 102 is light incoming cross-section 110 places that are configured in mixed light element (assembly) 104, so that the light that light emitting diode sent is incident among the mixed light element 104 by light incoming cross-section 110.When the light that light emitting diode 102 is sent is finished mixed light in mixed light element 104 after, understand light outgoing cross section 112 outgoing, and inject in the turn light rays device 106 that connects mixed light element 104 and light guide plate 108 by mixed light element 104.And light by the reflecting surface 118 of turn light rays device 106 inside with its reflection after, can be incident to by the light incoming cross-section 114 of light guide plate 108 among the light guide plate 108, last again by light outgoing cross section 116 outgoing of light guide plate 108.
Yet this kind module backlight needs long light mixing distance the light that light emitting diode sent evenly can be mixed.Therefore, whole module backlight needs bigger volume too.In present display tended to lightening trend gradually, the range of application of the existing known module backlight of this kind was quite limited.
This shows that above-mentioned existing module backlight still has many defectives, and demands urgently further being improved.In order to solve the defective of existing module backlight, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but does not see always that for a long time suitable design finished by development, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing module backlight exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of module backlight and the light source module thereof of founding a kind of new structure, can improve existingly, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing module backlight exists, and a kind of light source module of new structure is provided, technical matters to be solved is to make its light that can send even light mixing, thereby is suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing module backlight exists, and provide a kind of module backlight of new structure, technical matters to be solved is to make it that uniform light colourity and briliancy can be provided, and generally the volume lower weight is also lighter, be suitable for light and thin flat-panel screens, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of light source module that the present invention proposes, it comprises: a mixed light pipe has one first end face; A most light-emitting component are disposed in this mixed light pipe; And one first turn light rays device, has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, wherein, the light that those light-emitting components sent to this first turn light rays device, and sees through this first smooth outgoing cross section outgoing of this first turn light rays device by this mixed light pipe outgoing.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid light source module has one first angle between this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device, and this first angle comprise 90 the degree and 180 the degree one of them.
Aforesaid light source module, it more comprises one first dispersing element, be connected with this first turn light rays device, and this first dispersing element is suitable for making the light scatter by this first smooth outgoing cross section outgoing of this first turn light rays device.
Aforesaid light source module, it more comprises one second turn light rays device, has one second smooth outgoing cross section, wherein this mixed light pipe has more one second end face, and this second turn light rays device is this second end face that is connected to this mixed light pipe, so that the light that those light-emitting components sent by this mixed light pipe outgoing to this second turn light rays device, and see through this second smooth outgoing cross section outgoing of this second turn light rays device.
Aforesaid light source module has one second angle between this second smooth outgoing cross section of this second end face of wherein said mixed light pipe and this second turn light rays device, and this second angle comprise 90 the degree and 180 the degree one of them.
Aforesaid light source module, it more comprises a shared dispersing element, be connected with this first turn light rays device and this second turn light rays device, wherein this shared dispersing element is suitable for making the light scatter by this second smooth outgoing cross section outgoing of this first smooth outgoing cross section of this first turn light rays device and this second turn light rays device.
Aforesaid light source module, more comprise one second dispersing element, when this second angle is 90 when spending, this second dispersing element is to be connected with this second turn light rays device, and this second dispersing element is suitable for making the light scatter by this second smooth outgoing cross section outgoing of this second turn light rays device.
Aforesaid light source module, wherein said those light-emitting components comprise the light-emitting component of different color light.
Aforesaid light source module, wherein said those light-emitting components comprise light emitting diode.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to the module a kind of backlight that the present invention proposes, it comprises: a light-guide device; And a light source module, be disposed at contiguous this light-guide device part, and this light source module comprises: a mixed light pipe has one first end face; A most light-emitting component are disposed in this mixed light pipe; And one first turn light rays device, has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, and wherein the light that those light-emitting components sent is to be incident in this light-guide device through this first smooth outgoing cross section of this first turn light rays device.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid module backlight, the wherein said first turn light rays device is the edge that is disposed at this light-guide device.
Aforesaid module backlight has one first angle between this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device, and this first angle comprise 90 the degree and 180 the degree one of them.
Aforesaid module backlight, wherein said light-guide device has one first side, and when this first angle be 90 when spending, this mixed light pipe is this first side that is positioned at this light-guide device, and this first smooth outgoing cross section of this first turn light rays device is also towards this first side of this light-guide device.
Aforesaid module backlight, wherein said light-guide device has one first side and one second side adjacent with this first side, when this first angle is 180 when spending, this mixed light pipe is this first side that is positioned at this light-guide device, and this first smooth outgoing cross section of this first turn light rays device is this second side towards this light-guide device.
Aforesaid module backlight, it more comprises one first dispersing element, be connected with this first turn light rays device, and this first dispersing element is suitable for making light scatter by this first smooth outgoing cross section outgoing of this first turn light rays device to this light-guide device.
Aforesaid module backlight, wherein said first dispersing element and this light source module are sides that is disposed at this light-guide device, and this first dispersing element is between this mixed light pipe and this light-guide device.
Aforesaid module backlight, wherein said light-guide device have one first side and one second side adjacent with this first side, and this first dispersing element and this mixed light pipe are to be respectively adjacent in this first side and the configuration of this second side.
Aforesaid module backlight, wherein said first dispersing element is a side that is disposed at this light-guide device, and this mixed light pipe is the below that is configured in this first dispersing element.
Aforesaid module backlight, wherein said light source module more comprises one second turn light rays device, has one second smooth outgoing cross section, wherein this mixed light pipe has more one second end face, and this second turn light rays device is this second end face that is connected in this mixed light pipe, so that the light that those light-emitting components sent by this mixed light pipe outgoing to this second turn light rays device, and see through this second smooth outgoing cross section outgoing of this second turn light rays device.
Aforesaid module backlight has one second angle between this second smooth outgoing cross section of this second end face of wherein said mixed light pipe and this second turn light rays device, and this second angle comprise 90 the degree and 180 the degree one of them.
Aforesaid module backlight, it more comprises a shared dispersing element, be connected with this first turn light rays device and this second turn light rays device, wherein this shared dispersing element is suitable for making light scatter by this second smooth outgoing cross section outgoing of this first smooth outgoing cross section of this first turn light rays device and this second turn light rays device to this light-guide device.
Aforesaid module backlight, wherein said shared dispersing element is a side that is disposed at this light-guide device, and this mixed light pipe is the below that is configured in this shared dispersing element.
Aforesaid module backlight, wherein said shared dispersing element and this light source module are sides that is disposed at this light-guide device, and this shared dispersing element is between this light source module and this light-guide device.
Aforesaid module backlight, more comprise one second dispersing element, when this second angle is 90 when spending, this second dispersing element is to be connected to this second turn light rays device, and this second dispersing element is suitable for making light scatter by this second smooth outgoing cross section outgoing of this second turn light rays device to this light-guide device.
Aforesaid module backlight, wherein said light-guide device have one first side and one second side adjacent with this first side, and this second dispersing element and this mixed light pipe are to be respectively adjacent in this first side and the configuration of this second side.
Aforesaid module backlight, wherein said those light-emitting components comprise the light-emitting component of different color light.
Aforesaid module backlight, wherein said those light-emitting components comprise light emitting diode.
Aforesaid module backlight, wherein said light-guide device comprises a light guide plate.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to the module a kind of backlight that the present invention proposes, it comprises: a light-guide device has one first side; And a light source module, be disposed at this first side of this light-guide device, and this light source module comprises: a mixed light pipe has one first end face and one second end face; A most light-emitting component are disposed in this mixed light pipe; One first turn light rays device has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, and this first smooth outgoing cross section is this first side towards this light-guide device; And one second turn light rays device, having one second smooth outgoing cross section, this second turn light rays device is this second end face that is connected to this mixed light pipe, and this second smooth outgoing cross section is this first side towards this light-guide device.
Aforesaid module backlight, the angle in this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device is 90 degree, and the angle in this second smooth outgoing cross section of this second end face of this mixed light pipe and this second turn light rays device also is 90 degree.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of light source module, mainly is to be made of mixed light pipe, a plurality of light-emitting component and the first turn light rays device.Wherein, the mixed light pipe has one first end face, and these a little light-emitting components are to be configured in the mixed light pipe.The first turn light rays device has the first smooth outgoing cross section, and the first turn light rays device is first end face that is connected to the mixed light pipe, so that the light that light-emitting component sent is by mixed light pipe outgoing to the first turn light rays device, again via the first smooth outgoing cross section outgoing of the first turn light rays device.
Described according to one embodiment of the invention, have one first angle between the first smooth outgoing cross section of first end face of mixed light pipe and the first turn light rays device, and this first angle for example is 90 degree or 180 degree.
Described according to one embodiment of the invention, this light source module more comprises one first dispersing element.And this first dispersing element is to be connected with the first turn light rays device, and is suitable for making the light scatter by the first smooth outgoing cross section outgoing of the first turn light rays device.
Described according to one embodiment of the invention, the mixed light pipe has more second end face, and this light source module more comprises one second turn light rays device.Wherein the second turn light rays device connects second end face as for the mixed light pipe, and has second a smooth outgoing cross section, so that the light that light-emitting component sent is by mixed light pipe outgoing to the second turn light rays device, again via the second smooth outgoing cross section outgoing of the second turn light rays device.
Described according to one embodiment of the invention, have one second angle between the second smooth outgoing cross section of second end face of mixed light pipe and the second turn light rays device, and this second angle for example is 90 degree or 180 degree.
Described according to one embodiment of the invention, this light source module more comprises a shared dispersing element, this shared dispersing element is to be connected with first and second turn light rays device, and is suitable for making the light scatter by the second smooth outgoing cross section outgoing of the first smooth outgoing cross section of the first turn light rays device and the second turn light rays device.
Described according to one embodiment of the invention, when second angle is 90 when spending, this light source module more comprises one second dispersing element, and this second dispersing element is to be connected with the second turn light rays device, and is suitable for making the light scatter by the second smooth outgoing cross section outgoing of the second turn light rays device.
Described according to one embodiment of the invention, these a little light-emitting components comprise the light-emitting component of different color light, and it for example is a light emitting diode.
The present invention proposes a kind of module backlight, mainly is to be made of light-guide device and light source module of the present invention.Wherein, the light source module is to be configured in contiguous light-guide device part.And the light that light-emitting component sent is the incident light-guide device through the first smooth outgoing cross section of the first turn light rays device.
The present invention proposes a kind of module backlight, mainly is to be made of light-guide device and light source module of the present invention.Wherein, light-guide device has one first side, and the light source module promptly is first side that is configured in light-guide device.The light source module is made of mixed light pipe, a plurality of light-emitting component, the first turn light rays device and the second turn light rays device.The mixed light pipe has one first end face and one second end face, and light-emitting component is to be disposed in the mixed light pipe.The first turn light rays device is first end face that is connected to the mixed light pipe, and the first turn light rays device is the first smooth outgoing cross section that has towards first side of light-guide device.And the second turn light rays device is second end face that is connected to the mixed light pipe, and the second turn light rays device is the second smooth outgoing cross section that has towards first side of light-guide device.
Described according to one embodiment of the invention, the first turn light rays device is the edge that is configured in light-guide device.
Described according to one embodiment of the invention, have one first angle between the first smooth outgoing cross section of first end face of mixed light pipe and the first turn light rays device, this first angle for example is 90 degree or 180 degree.In one embodiment of this invention, when first angle is 90 when spending, light-guide device has one first side, and the mixed light pipe is first side that is positioned at light-guide device, and the second smooth outgoing cross section of the second turn light rays device is also towards first side of this light-guide device.And in another embodiment, when first angle is 180 when spending, light-guide device has first side and second side adjacent with this first side, and the mixed light pipe is first side that is positioned at light-guide device, and the first smooth outgoing cross section of the first turn light rays device is second side towards light-guide device.
Described according to one embodiment of the invention, this module backlight more comprises first dispersing element.And this first dispersing element is to be connected with the first turn light rays device, and is suitable for making light scatter by the first smooth outgoing section outgoing of the first turn light rays device to light-guide device.
Described according to one embodiment of the invention, first dispersing element and light source module are sides that is configured in light-guide device, and first dispersing element is between mixed light pipe and light-guide device.
Described according to one embodiment of the invention, first dispersing element is a side that is configured in light-guide device, and mixed light Guan Ze is the below that is configured in first dispersing element.
Described according to one embodiment of the invention, light-guide device has first side and second side adjacent with first side, and first dispersing element and mixed light pipe are respectively adjacent to first side of light-guide device and the configuration of second side.
Described according to one embodiment of the invention, this light source module more comprises the second turn light rays device with second smooth outgoing cross section, be disposed at second end face of mixed light pipe, so that the light that light-emitting component sent is by mixed light pipe outgoing to the second turn light rays device, and see through the second smooth outgoing cross section outgoing of the second turn light rays device.
Described according to one embodiment of the invention, have one second angle between the second smooth outgoing cross section of second end face of mixed light pipe and the second turn light rays device, and this second angle for example is 90 degree or 180 degree.
Described according to one embodiment of the invention, this module backlight more comprises a shared dispersing element.And this shared dispersing element is to be connected with first and second turn light rays device, and is suitable for making light scatter by the second smooth outgoing cross section outgoing of the first smooth outgoing cross section of the first turn light rays device and the second turn light rays device to light-guide device.
Described according to one embodiment of the invention, shared dispersing element and light source module are sides that is configured in light-guide device, and shared dispersing element is between mixed light pipe and light-guide device.
Described according to one embodiment of the invention, shared dispersing element is a side that is configured in light-guide device, and mixed light Guan Ze is the below that is configured in shared dispersing element.
Described according to one embodiment of the invention, when second angle is 90 when spending, this module backlight more comprises second dispersing element.And second dispersing element is to be connected with the second turn light rays device, and is suitable for making light scatter by the second smooth outgoing cross section outgoing of the second turn light rays device to light-guide device.
Described according to one embodiment of the invention, second dispersing element and light source module are sides that is configured in light-guide device, and second dispersing element is between mixed light pipe and light-guide device.
Described according to one embodiment of the invention, light-guide device has first side and second side adjacent with first side, and second dispersing element and mixed light pipe are respectively adjacent to first side of light-guide device and the configuration of second side.
Described according to one embodiment of the invention, light-guide device for example is a light guide plate, and light-emitting component comprises the light-emitting component of different color light, and it for example is a light emitting diode.
Via as can be known above-mentioned, light source module of the present invention, it is made of mixed light pipe, a plurality of light-emitting component, the first turn light rays device and the second turn light rays device.Wherein, the mixed light pipe has first end face and second end face, and light-emitting component is to be configured in the mixed light pipe.First and second turn light rays device is first and second end face that is connected to the mixed light pipe respectively, and has first and second light outgoing cross section respectively.Therefore, the light that light-emitting component sent can be by the outgoing of mixed light pipe to first and second turn light rays device, again via first and second light outgoing cross section outgoing.This light source module can send the light with even color and briliancy.And shorter because of its required light mixing distance, so overall volume is less, be suitable for being applied in the hypomegetic light-emitting device.
By technique scheme, the present invention has following advantage at least: the present invention is disposed at light-emitting component among the mixed light pipe, and make light that light-emitting component sends in the mixed light pipe via after repeatedly reflecting mixed light, light brings out by two of mixed light pipe and to penetrate, so can be reached even mixed light and make the light of outgoing have uniform colourity and briliancy in short distance.Hence one can see that, and the volume that the volume of module backlight of the present invention has known module backlight now is little, thereby can be applied in the lightening display.
In sum, light source module of the present invention can send the light of even light mixing.Module backlight of the present invention can provide uniform light colourity and briliancy, and generally the volume lower weight is also lighter, is suitable for light and thin flat-panel screens.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on the structure of product or function, have large improvement technically, and produced handy and practical effect, and more existing module backlight has the multinomial effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Figure 1A is the side-looking diagrammatic cross-section that has the module backlight of known side incident type now.
Figure 1B is the schematic perspective view that has the module backlight of known side incident type now.
Fig. 2 A is the top view of a kind of light source module of a preferred embodiment of the present invention.
Fig. 2 B is the side-looking diagrammatic cross-section of the light source module that illustrated of Fig. 2 A.
Fig. 3 A to Fig. 3 C is the top view of the module backlight that changed according to Fig. 2 A and Fig. 2 B.
Fig. 4 is the top view of the module backlight in another embodiment of the present invention.
Fig. 5 A to Fig. 5 C is the top view of the module backlight that changed according to Fig. 4.
Fig. 6 is the top view of a kind of module backlight of a preferred embodiment of the present invention.
Fig. 7 A to Fig. 7 D is the top view of the module backlight that changed according to Fig. 6.
Fig. 8 is the top view of the module backlight of one embodiment of the invention.
Fig. 9 A is the top view of the module backlight of one embodiment of the invention.
Fig. 9 B is the side cutaway view of the light source module that illustrated of Fig. 9 A.
Figure 10 is the top view of the module backlight that changed according to Fig. 9 A.
100,200,400,600: module backlight (module)
102: light emitting diode 104: mixed light element (assembly)
106,210,212: turn light rays device 108: light guide plate
110: light incoming cross-section 112,116,120: light outgoing cross section
118: reflecting surface 130,140: light incoming cross-section
204: light source module 206: the mixed light pipe
208: 214: the first end faces of light-emitting component
216: the second end faces 218,606: the first smooth outgoing cross sections
220,608: the second smooth outgoing cross sections 402,610: diffusingsurface
420: the second dispersing elements of 410: the first dispersing elements
602,604: turn light rays device 800,900: shared dispersing element
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to module backlight and its concrete structure of light source module, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Please consult simultaneously shown in Fig. 2 A and Fig. 2 B, Fig. 2 A is the top view of a kind of module backlight of a preferred embodiment of the present invention, and Fig. 2 B then is the side-looking diagrammatic cross-section of the light source module that illustrated of Fig. 2 A.This module 200 backlight is made of light-guide device 202 and light source module 204.Wherein, light-guide device 202 for example is a light guide plate, and has light outgoing cross section 120 and light incoming cross-section 130.And light source module 204 is the sides that are configured in light-guide device 202, and in the present embodiment, light source module 204 for example is light incoming cross-section 130 parts that are configured in contiguous light-guide device 202.And light source module 204 is made of mixed light pipe 206, a plurality of light-emitting component 208, the first turn light rays device 210 and the first turn light rays device 212.
Light-emitting component 208 is to be configured within the mixed light pipe 206, and it for example is a light-emitting diode.And those light-emitting components 208 can be the light-emitting components with identical coloured light, can be the light-emitting components with different color light also, and haveing the knack of this skill person can be according to actual required electing.
Two ends of mixed light pipe 206 have first end face 214 and second end face 216 respectively.And the first turn light rays device 210 and the second turn light rays device 212 promptly are first end face 214 and second end faces 216 that is connected to mixed light pipe 206 respectively.Wherein, first steering gear 210 has 212 in the first smooth outgoing cross section, 218, the second turn light rays devices and has the second smooth outgoing cross section 220.And the 218 and second smooth outgoing cross section 220, the second smooth outgoing cross section all corresponds to the light incoming cross-section 130 of light-guide device 202.
Please consult shown in Fig. 2 A again, it should be noted that, the first turn light rays device 210 and the second turn light rays device, 212 inside for example are to have the reflecting surface (not shown), after light that light-emitting component 208 is sent is by first end face 214 and second end face, 216 outgoing mixed light pipes 206, can expose to the reflecting surface of the first turn light rays device 210 and the second turn light rays device, 212 inside, and then change its direct of travel and, be incident in the light-guide device 202 via light incoming cross-section 130 again by 218 and second smooth outgoing cross section 220 outgoing of the first smooth outgoing cross section.Specifically, in the present embodiment, the angle that first end face 214 and the first smooth outgoing cross section are 218, and the angle in 220 in second end face 216 and the second smooth outgoing cross section for example is 90 degree.Therefore, the direction of light incident light-guide device 202 is to differ 90 degree with light by the direct of travel during outgoing in the mixed light pipe 206.
And light-guide device 202 inside for example are to have a diffusingsurface (not shown), after light is incident to light-guide device 202, promptly membership thus diffusingsurface with after the light diffusion, again by 120 outgoing of light outgoing cross section.
It should be noted that, because the light source module 204 of present embodiment can smaller volume be reached uniform mixed light effect, therefore the light that module backlight 200 of the present invention is sent has briliancy and colourity uniformly, more can dwindle the volume of whole module backlight, to meet the lightening gradually trend of modern displays.
Yet present embodiment only is in order to module backlight of the present invention to be described, is not in order to limit the present invention.Fig. 3 A to Fig. 3 C is the top view of the module backlight that changed according to present embodiment.
In another embodiment of the present invention, light-guide device 202 for example is to have the light incoming cross-section 140 relative with light incoming cross-section 130, and then this module backlight can be simultaneously at light incoming cross-section 130 and light incoming cross-section 140 places configuration light source module 204, as shown in Figure 3A.
In addition, the present invention can also be at the light incoming cross-section 130 of light-guide device 202 or light incoming cross-section 140 a plurality of light source modules 204 of one of them place's configuration at least, to increase the light intensity of module backlight institute outgoing, shown in Fig. 3 B.
In addition, the present invention does not limit the quantity of the turn light rays device in the light source module 204.Light source module of the present invention also can only dispose single turn light rays device, for example is the first turn light rays device 210, shown in Fig. 3 C.
What deserves to be mentioned is that in another embodiment of the present invention, the light source module can also be the adjacent side that is configured in the light incoming cross-section of light-guide device, and by dispersing element with light scatter to light-guide device, so that further mixed light.Below will cooperate this embodiment of graphic explanation, and the element numbers in present embodiment graphic illustrates identical person with Fig. 2 A and Fig. 2 B, its material and purposes below will repeat no more all similar in appearance to the explanation of Fig. 2 A and Fig. 2 B.
Seeing also shown in Figure 4ly, is the top view of the module backlight in another embodiment of the present invention.This module 400 backlight comprises light-guide device 202, light source module 204, first dispersing element 410 and second dispersing element 420.Wherein, light-guide device has light incoming cross-section 130 and the light incoming cross-section 140 relative with it.Light source module 204 is to be configured in the light incoming cross-section 130 of light-guide device 202 and the adjacent side of light incoming cross-section 140.First dispersing element 410 is to be connected to the first turn light rays device 210, and corresponds to the first smooth outgoing cross section 218 of the first turn light rays device 210 and the light incoming cross-section 130 of light-guide device 202.And second dispersing element 420 is to be connected to the second turn light rays device 212, and corresponds to the second smooth outgoing cross section 220 of the second turn light rays device 212 and the light incoming cross-section 140 of light-guide device 202.
Specifically, first dispersing element 410 and second dispersing element, 420 inside all have a diffusingsurface 402, so that behind light incident first dispersing element 410 and second dispersing element 420, can carry out mixed light further by 402 pairs of light of diffusingsurface, be incident among the light-guide device 202 by light incoming cross-section 130 and light incoming cross-section 140 more afterwards.At last, again by light outgoing cross section 120 outgoing of light-guide device 202.
As aforesaid explanation, the module backlight of present embodiment can also have other variation.Shown in Fig. 5 A to Fig. 5 C, be the top view of the module backlight that changed of the module backlight that illustrates according to Fig. 4.
Module backlight of the present invention can certainly only set single turn light rays device and dispersing element, to dwindle the volume of whole module backlight.It for example is that configuration first dispersing element 410 is connected to the first turn light rays device 210 in module backlight of the present invention, shown in Fig. 5 A.The present invention does not limit the quantity of the required dispersing element that sets in the module backlight, have the knack of this skill person can be voluntarily according to actual required and determine.
In addition, the present invention can also dispose more than one light source module 204 in module backlight, shown in Fig. 5 B and Fig. 5 C.
In addition, though in aforesaid all embodiment, the angle between the light outgoing cross section of the light outgoing cross section of mixed light pipe and turn light rays device is all 90 degree, that is to say, the turn light rays device is that the direct of travel with light has changeed 90 degree.Yet the above embodiments only are in order to explanation the present invention, but not in order to limit the present invention.In other embodiments of the invention, the turn light rays device can also rotate the travel path of light 180 degree or other angles, and haveing the knack of this skill person can be according to the required steering angle of adjusting light of actual conditions.Below will the light source module that the travel path of light can be rotated 180 degree among the present invention be described for embodiment.
See also shown in Figure 6, the top view of a kind of module backlight of a preferred embodiment of the present invention.It should be noted that module backlight 600 and the module backlight 200 among first embodiment (shown in Fig. 2 A and Fig. 2 B) in the present embodiment are only different in turn light rays device and configuration thereof.Therefore, locating mainly is that configuration at the turn light rays device explains, the label components identical among other and Fig. 2 A and Fig. 2 B, and its allocation position, material or purposes or the like all with identical described in first embodiment, will repeat no more herein.
See also shown in Figure 6ly, light source module 204 for example is to be configured in the light incoming cross-section 130 of light-guide device 202 and the adjacent side of light incoming cross-section 140.The first turn light rays device 602 and the second turn light rays device 604 are two ends that are disposed at mixed light pipe 202 respectively.And the first smooth outgoing cross section 606 of the first turn light rays device 602 is that second 608 in the smooth outgoing cross section that corresponds to light incoming cross-section 130, the second turn light rays devices 604 of light-guide device 202 is the light incoming cross-section 140 that corresponds to light-guide device 202.And 214 of first smooth outgoing cross section 606 of the first turn light rays device 602 and first end faces of mixed light pipe 206, and the angle of 216 of second end faces of second smooth outgoing cross section 608 of the second turn light rays device 604 and mixed light pipe 206 is all 180 degree.
And, the first turn light rays device 602 and the second turn light rays device, 604 inside for example are to have a reflecting surface (not shown), so when light-emitting component 208 is emitted beam by mixed light pipe 206 inside and during respectively via first end face 214 and second end face, 216 outgoing to the first turn light rays devices 602 and the second turn light rays device 604, light can shine so far reflecting surface and change its direct of travel and respectively via first smooth outgoing cross section 606 of the first turn light rays device 602 and second smooth outgoing cross section 608 outgoing of the second turn light rays device 604.That is to say, the first turn light rays device 602 and the second turn light rays device 604 are with by outgoing after the light turnback of 206 outgoing of mixed light pipe, light incoming cross-section 130 via light-guide device 202 is incident in the light-guide device 202 with light incoming cross-section 140 again, last light outgoing cross section 120 outgoing by light-guide device 202.
Certainly, the present invention can also change according to present embodiment.Fig. 7 A to Fig. 7 D is the top view of the module backlight that changed according to present embodiment.
Shape that it should be noted that the first turn light rays device 602 of the present invention and the second turn light rays device 604 is not defined in the shape that Fig. 6 A is illustrated.The present invention can also strengthen the second smooth outgoing cross section 606 of the first turn light rays device 602 and the second smooth outgoing cross section, 608 areas of the second turn light rays device 604, shown in Fig. 7 A, so that evenly be incident in the light-guide device 202.
Certainly, module backlight of the present invention also can only dispose single turn light rays device, for example is that the end at mixed light pipe 206 disposes the first turn light rays device 604, shown in Fig. 7 B.Haveing the knack of this skill person can be voluntarily come the quantity of turn light rays device that the light source module is set to adjust according to actual required.
In addition, the present invention can also dispose a plurality of light source modules 204, the first turn light rays device 602 and the second turn light rays device 604 in a module backlight, shown in Fig. 7 C and Fig. 7 D.
Specifically, the present invention can also be equipped with dispersing element in the module backlight 600 of present embodiment, so that light can evenly be dispersed.Below will be illustrated for embodiment.
Seeing also shown in Figure 8ly, is the top view of the module backlight of one embodiment of the invention.Dispersing element 800 and light source module 204 all are disposed at light incoming cross-section 130 places of light-guide device 202, and dispersing element 800 is between mixed light pipe 206 and light-guide device 202.Specifically, dispersing element 800 is to be connected in first smooth outgoing cross section 606 of the first turn light rays device 602 and the second smooth outgoing cross section 608 of the second turn light rays device 604.Therefore, the light that is sent by light-emitting component 208 is understood earlier and is distinguished outgoing to the first turn light rays devices 602 and the second turn light rays device 604 by first end face 214 and second end face 216 of mixed light pipe 206.Afterwards again by second smooth outgoing cross section 608 outgoing of the first smooth outgoing cross section 606 of the first turn light rays device 602 and the second turn light rays device 604 to dispersing element 800.And the inside of dispersing element 800 for example is to have diffusingsurface 610, so that behind the light incident dispersing element 800, can carry out further mixed light by 610 pairs of light of diffusingsurface, is incident among the light-guide device 202 by light incoming cross-section 130 more afterwards.At last, again by light outgoing cross section 120 outgoing of light-guide device 202.
Certainly, have the knack of module backlight that this skill person should be understood that present embodiment and also can do the variation done as previous embodiment, will repeat no more herein.
In another embodiment of the present invention, except the configuration that Fig. 8 illustrated, the module backlight with dispersing element can also have another kind of collocation method.Fig. 9 A is the top view of the module backlight of one embodiment of the invention.Fig. 9 B then is the side cutaway view of the light source module that illustrated of Fig. 9 A.
Please consult simultaneously shown in Fig. 9 A and Fig. 9 B, dispersing element 900 is light incoming cross-section 130 places that are disposed at light-guide device 202, and the mixed light pipe 206 of light source module 204 then is the below that is configured in dispersing element.In the present embodiment, except mixed light pipe 206, the relative allocation position of other element is all identical with the illustrated embodiment of Fig. 8, repeats no more herein.
What deserves to be mentioned is that though present embodiment is the below that mixed light pipe 206 is disposed at dispersing element 900, yet in another embodiment, mixed light pipe 206 can also be the below that is disposed at light-guide device 202.Therefore, when if desire is applied to relatively large light fixture or display with module backlight of the present invention, can below light-guide device 202, dispose multiple sets of light sources module 204, as shown in figure 10, so that under the constant prerequisite of the area of keeping whole module backlight, increase the luminosity of module backlight.
Conspicuous, in the present embodiment, the arrangement mode of light source module 204 below light-guide device 202 except Figure 10 illustrated be arranged in parallel, it can also have other kind arrangement mode, for example is to arrange or the like along cornerwise bearing of trend.The present invention is not limited it, and haveing the knack of this skill person can be according to actual required the variation.
The present invention is disposed at light-emitting component among the mixed light pipe, and make light that light-emitting component sends in the mixed light pipe via after repeatedly reflecting mixed light, light brings out by two of mixed light pipe and to penetrate, so can be reached even mixed light and make the light of light source module institute outgoing have uniform colourity and briliancy in short distance.Hence one can see that, and the present invention can dwindle the volume of light source module and not influence its mixed light effect.Therefore, the volume of module backlight of the present invention is little than the volume that has known module backlight now, thereby can be applied in the lightening display.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (28)
1, a kind of light source module is characterized in that it comprises:
One mixed light pipe has one first end face;
A most light-emitting component are disposed in this mixed light pipe;
One first turn light rays device, has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, wherein, the light that those light-emitting components sent to this first turn light rays device, and sees through this first smooth outgoing cross section outgoing of this first turn light rays device by this mixed light pipe outgoing; And
One second turn light rays device, has one second smooth outgoing cross section, wherein this mixed light pipe has more one second end face, and this second turn light rays device is this second end face that is connected to this mixed light pipe, so that the light that those light-emitting components sent by this mixed light pipe outgoing to this second turn light rays device, and see through this second smooth outgoing cross section outgoing of this second turn light rays device.
2, light source module according to claim 1, it is characterized in that having one first angle between this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device, and this first angle comprise 90 degree and 180 degree one of them.
3, light source module according to claim 1, it is characterized in that it more comprises one first dispersing element, be connected with this first turn light rays device, and this first dispersing element is suitable for making the light scatter by this first smooth outgoing cross section outgoing of this first turn light rays device.
4, light source module according to claim 1, it is characterized in that having one second angle between this second smooth outgoing cross section of this second end face of wherein said mixed light pipe and this second turn light rays device, and this second angle comprise 90 degree and 180 degree one of them.
5, light source module according to claim 4, it is characterized in that it more comprises a shared dispersing element, be connected with this first turn light rays device and this second turn light rays device, wherein this shared dispersing element is suitable for making the light scatter by this second smooth outgoing cross section outgoing of this first smooth outgoing cross section of this first turn light rays device and this second turn light rays device.
6, light source module according to claim 4, its feature more comprises one second dispersing element at it, when this second angle is 90 when spending, this second dispersing element is to be connected with this second turn light rays device, and this second dispersing element is suitable for making the light scatter by this second smooth outgoing cross section outgoing of this second turn light rays device.
7, light source module according to claim 1 is characterized in that wherein said those light-emitting components comprise the light-emitting component of different color light.
8, light source module according to claim 1 is characterized in that wherein said those light-emitting components comprise light emitting diode.
9, a kind of module backlight, its feature comprises at it:
One light-guide device; And
One light source module be disposed at contiguous this light-guide device part, and this light source module comprises:
One mixed light pipe has one first end face;
A most light-emitting component are disposed in this mixed light pipe;
One first turn light rays device, has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, and wherein the light that those light-emitting components sent is to be incident in this light-guide device through this first smooth outgoing cross section of this first turn light rays device; And
One second turn light rays device, has one second smooth outgoing cross section, wherein this mixed light pipe has more one second end face, and this second turn light rays device is this second end face that is connected in this mixed light pipe, so that the light that those light-emitting components sent by this mixed light pipe outgoing to this second turn light rays device, and see through this second smooth outgoing cross section outgoing of this second turn light rays device.
10, module backlight according to claim 9 is characterized in that the wherein said first turn light rays device is the edge that is disposed at this light-guide device.
11, module backlight according to claim 9, it is characterized in that having one first angle between this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device, and this first angle comprise 90 degree and 180 degree one of them.
12, module backlight according to claim 11, it is characterized in that wherein said light-guide device has one first side, and when this first angle be 90 when spending, this mixed light pipe is this first side that is positioned at this light-guide device, and this first smooth outgoing cross section of this first turn light rays device is also towards this first side of this light-guide device.
13, module backlight according to claim 11, it is characterized in that wherein said light-guide device has one first side and one second side adjacent with this first side, when this first angle is 180 when spending, this mixed light pipe is this first side that is positioned at this light-guide device, and this first smooth outgoing cross section of this first turn light rays device is this second side towards this light-guide device.
14, module backlight according to claim 9, it is characterized in that it more comprises one first dispersing element, be connected with this first turn light rays device, and this first dispersing element is suitable for making light scatter by this first smooth outgoing cross section outgoing of this first turn light rays device to this light-guide device.
15, module backlight according to claim 14 it is characterized in that wherein said first dispersing element and this light source module are sides that is disposed at this light-guide device, and this first dispersing element is between this mixed light pipe and this light-guide device.
16, module backlight according to claim 14, it is characterized in that wherein said light-guide device has one first side and one second side adjacent with this first side, and this first dispersing element and this mixed light pipe are to be respectively adjacent in this first side and the configuration of this second side.
17, module backlight according to claim 14 it is characterized in that wherein said first dispersing element is a side that is disposed at this light-guide device, and this mixed light pipe is the below that is configured in this first dispersing element.
18, module backlight according to claim 9, it is characterized in that having one second angle between this second smooth outgoing cross section of this second end face of wherein said mixed light pipe and this second turn light rays device, and this second angle comprise 90 degree and 180 degree one of them.
19, module backlight according to claim 18, it is characterized in that it more comprises a shared dispersing element, be connected with this first turn light rays device and this second turn light rays device, wherein this shared dispersing element is suitable for making light scatter by this second smooth outgoing cross section outgoing of this first smooth outgoing cross section of this first turn light rays device and this second turn light rays device to this light-guide device.
20, module backlight according to claim 19 it is characterized in that wherein said shared dispersing element is a side that is disposed at this light-guide device, and this mixed light pipe is the below that is configured in this shared dispersing element.
21, module backlight according to claim 19 it is characterized in that wherein said shared dispersing element and this light source module are sides that is disposed at this light-guide device, and this shared dispersing element is between this light source module and this light-guide device.
22, module backlight according to claim 18, it is characterized in that it more comprises one second dispersing element, when this second angle is 90 when spending, this second dispersing element is to be connected to this second turn light rays device, and this second dispersing element is suitable for making light scatter by this second smooth outgoing cross section outgoing of this second turn light rays device to this light-guide device.
23, module backlight according to claim 22, it is characterized in that wherein said light-guide device has one first side and one second side adjacent with this first side, and this second dispersing element and this mixed light pipe are to be respectively adjacent in this first side and the configuration of this second side.
24, module backlight according to claim 9 is characterized in that wherein said those light-emitting components comprise the light-emitting component of different color light.
25, module backlight according to claim 9 is characterized in that wherein said those light-emitting components comprise light emitting diode.
26, module backlight according to claim 9 is characterized in that wherein said light-guide device comprises a light guide plate.
27, a kind of module backlight is characterized in that it comprises:
One light-guide device has one first side; And
One light source module be disposed at this first side of this light-guide device, and this light source module comprises:
One mixed light pipe has one first end face and one second end face;
A most light-emitting component are disposed in this mixed light pipe;
One first turn light rays device has one first smooth outgoing cross section, and this first turn light rays device is this first end face that is connected to this mixed light pipe, and this first smooth outgoing cross section is this first side towards this light-guide device; And
One second turn light rays device has one second smooth outgoing cross section, and this second turn light rays device is this second end face that is connected to this mixed light pipe, and this second smooth outgoing cross section is this first side towards this light-guide device.
28, module backlight according to claim 27, the angle that it is characterized in that this first smooth outgoing cross section of this first end face of wherein said mixed light pipe and this first turn light rays device is 90 degree, and the angle in this second smooth outgoing cross section of this second end face of this mixed light pipe and this second turn light rays device also is 90 to spend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100065322A CN100489613C (en) | 2004-03-04 | 2004-03-04 | Backlight assembly and its light source assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100065322A CN100489613C (en) | 2004-03-04 | 2004-03-04 | Backlight assembly and its light source assembly |
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| Publication Number | Publication Date |
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| CN1560675A CN1560675A (en) | 2005-01-05 |
| CN100489613C true CN100489613C (en) | 2009-05-20 |
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| CNB2004100065322A Expired - Fee Related CN100489613C (en) | 2004-03-04 | 2004-03-04 | Backlight assembly and its light source assembly |
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| CN101349833B (en) * | 2007-07-20 | 2011-11-23 | 奇美电子股份有限公司 | Apparatus and method for adjusting light ray and backlight module unit and LCD device using the same |
| CN111486406B (en) * | 2019-01-29 | 2024-03-15 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and car lamp using same |
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