CN103994367A - Side-in type LED backlight source module - Google Patents
Side-in type LED backlight source module Download PDFInfo
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- CN103994367A CN103994367A CN201410192198.8A CN201410192198A CN103994367A CN 103994367 A CN103994367 A CN 103994367A CN 201410192198 A CN201410192198 A CN 201410192198A CN 103994367 A CN103994367 A CN 103994367A
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- cup
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- light source
- led
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Abstract
The invention discloses a side-in type LED backlight source module. The side-in type LED backlight source module comprises an LED light source, a reflection cup, a prism membrane gathering light in the vertical direction and a prism membrane gathering light in the horizontal direction. The reflection cup is a reflection cavity with an arc-shaped concave face and a rectangular cup opening, and the periphery of the rectangular cup opening extends inwards. The LED light source comprises four LED arrays fixed on the four frames, extending inwards, of the rectangular cup opening of the reflection cup, and the light-emitting face of the LED light source faces the cup center of the reflection cup. The cup opening of the reflection cup is covered with the prism membrane gathering light in the vertical direction and the prism membrane gathering light in the horizontal direction in sequence. The side-in type LED backlight source module is simple in structure, has the ultra-thin appearance of a traditional side-in light source, can achieve the effect of even emitted light of a straight down type light source, and is suitable for mobile phones, tablet personal computers, other digital products, industrial instruments, appliances, automobiles and the like.
Description
Technical field
The present invention relates to a kind of side entering-type LED backlight source apparatus, belong to area source technical field.
Background technology
Present stage, liquid crystal indicator is the advantage such as quality is light, volume is little, little power consumption, radiation is low, quality is good owing to having, and has been widely used in the personal digital consumer goods such as mobile phone, notebook computer, panel computer, computer monitor, TV.Because LCD liquid crystal panel itself does not have the characteristics of luminescence, therefore need on LCD panel, add a light emitting source, backlight source module is to provide the optical module of LCD display back light.
LCD display backlight source module can be used cold-cathode fluorescence lamp (CCFL), Light-Emitting Diode (LED), external electrode fluorescent lamp (EFFL) etc. as light source.Be to take CCFL cold light tube as main in the past, but it is relatively high and comprise the problems such as mercury element to be faced with brightness irregularities, power consumption always; And LED is because adopting single-point luminous, have that power consumption is low, the advantage such as long and short little frivolous, environmental protection of life-span, adding LED color saturation can reach and approach 100%, be much better than the performance level of CCFL general 70%～85%, LED drives faster compared with CCFL, at present LED-backlit source replace gradually CCFL be widely used in, small size panel, following progressively striding forward to large size panel field of backlights.
LED-backlit source can be divided into two kinds of straight-down negative and side entering types, and " straight-down negative " is to be uniformly distributed LED behind at panel, and the light that light source is dispersed can evenly be communicated on whole picture, and picture detail is more fine and smooth true to nature, but thickness is larger, more difficult realize ultra-thin; " side entering type " is the installation LED of surrounding at every panel, light source is broken forth from the side, between the reflecting plate of the light producing after panel and LGP, spread, then be communicated to picture, the advantage of this mode is more can reduce thickness, be conducive to realize ultra-thin outward appearance, but lost to a certain extent image quality.
General side entering-type LED backlight liquid crystal indicator substantially all adopts a row LED at present, if the size of liquid-crystal apparatus is larger, higher to brightness requirement, just need to be by strengthening the electric current on LED or changing more high-power LED and solve problem, in addition two kinds of conventional LED-backlit sources are very high to the luminosity coherence request of every LEDs, select work heavy, if there is the life-span of certain LEDs to come to an end in advance, will greatly affect the equal property of light.
Summary of the invention
For overcoming deficiency of the prior art, the present invention aims to provide a kind of simple in structure, and bright dipping is even, realizes the side entering-type LED backlight source module of large scale, high brightness.
For realizing above-mentioned technical purpose, side entering-type LED backlight of the present invention source module comprises the prism film of LED light source, reflector, vertical direction optically focused and the prism film of horizontal direction optically focused, described reflector is one to have the reflection chamber of arc-shaped concave and rectangle rim of a cup, rectangle rim of a cup surrounding extends internally, LED light source is four LED array that are fixed on four frames that reflector rectangle rim of a cup extends internally, the light-emitting area of LED light source, towards the reflector cup heart, covers successively the prism film of vertical direction optically focused and the prism film of horizontal direction optically focused on the rim of a cup of reflector.
Conventionally, for convenience of fixed L ED array of source, make the reflector rectangle rim of a cup surrounding 30mm that extends internally.
For improving the reflectivity of reflector, can apply at the inner surface of reflector one deck inorganic compounding membrane coat, for example barium sulfate.
Compared with prior art, the present invention has following beneficial effect:
Side entering-type LED backlight of the present invention source modular structure is simple, adopts four LED array to be fixed on four frames of reflector rectangle rim of a cup, uses the LED of smaller power, can realize the illumination effect of large scale, high brightness.The ultra-thin outward appearance that not only has traditional side entering type light source, can also reach the uniform effect of directly-down light source utilizing emitted light.
Side entering-type LED backlight of the present invention source module is used the reflector of high reflectance, and adopts curved design, can effectively reduce light loss, reduce astigmatism, dazzle etc., strengthen diffuse reflection light mixing effect, guarantee bright dipping quality, improve the luminance uniformity of light fixture, reduce the dependence to every LEDs brightness.Inner surface at reflector applies one deck inorganic compounding membrane coat, can make reflectivity reach 95-100%, the present invention is simple in structure, the ultra-thin outward appearance that not only has traditional side entering type light source, can also reach the uniform effect of directly-down light source utilizing emitted light, be applicable to the numbers such as mobile phone, panel computer, industrial instruments, electrical equipment and automobile etc.
Accompanying drawing explanation
Fig. 1 is side entering-type LED backlight of the present invention source modular structure schematic diagram.
Fig. 2 is that LED array is arranged in the view on reflector rectangle rim of a cup four frames.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Referring to Fig. 1, Fig. 2, side entering-type LED backlight of the present invention source module comprises LED light source 1, reflector 2, the prism film 3 of vertical direction optically focused and the prism film 4 of horizontal direction optically focused, described reflector 2 is one to have the reflection chamber of arc-shaped concave and rectangle rim of a cup, rectangle rim of a cup surrounding extends internally, LED light source 1 is four LED array that are fixed on four frames that reflector 2 rectangle rims of a cup extend internally, the light-emitting area of LED light source 1 is towards 2 glasss of hearts of reflector, on the rim of a cup of reflector 2, cover successively the prism film 3 of vertical direction optically focused and the prism film 4 of horizontal direction optically focused.
The light that four LED array of LED light source send is after the reflection and diffuse reflection of reflector concave surface cavity, form uniform beam, light beam is through the correction directive effect of vertical direction optically focused prism film and horizontal direction optically focused prism film, concentrate and increase positive briliancy, thereby increase the utilization benefit after light self-reflection cup penetrates, more than making the integral brightness raising 60-100% of backlight module.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification that the present invention is made, is equal to and replaces and change, and all falls into protection scope of the present invention.
Claims (3)
1. a side entering-type LED backlight source module, it is characterized in that comprising LED light source (1), reflector (2), the prism film (4) of the prism film of vertical direction optically focused (3) and horizontal direction optically focused, described reflector (2) is one to have the reflection chamber of arc-shaped concave and rectangle rim of a cup, rectangle rim of a cup surrounding extends internally, LED light source (1) is four LED array that are fixed on four frames that reflector (2) rectangle rim of a cup extends internally, the light-emitting area of LED light source (1) is towards reflector (2) the cup heart, on the rim of a cup of reflector (2), cover successively the prism film (3) of vertical direction optically focused and the prism film (4) of horizontal direction optically focused.
2. side entering-type LED backlight according to claim 1 source module, is characterized in that there is reflection inorganic compounding membrane coat at the inner surface of described reflector (2).
3. side entering-type LED backlight according to claim 1 source module, is characterized in that at the described reflector rectangle rim of a cup surrounding 30mm that extends internally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192198.8A CN103994367A (en) | 2014-05-08 | 2014-05-08 | Side-in type LED backlight source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192198.8A CN103994367A (en) | 2014-05-08 | 2014-05-08 | Side-in type LED backlight source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994367A true CN103994367A (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410192198.8A Pending CN103994367A (en) | 2014-05-08 | 2014-05-08 | Side-in type LED backlight source module |
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| CN (1) | CN103994367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895350A (en) * | 2018-08-09 | 2018-11-27 | 深圳市福尔乐照明有限公司 | A kind of ultra-thin LED lamps and lanterns |
| CN109061942A (en) * | 2018-08-15 | 2018-12-21 | 深圳市华星光电技术有限公司 | Side entrance back module and display device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6007209A (en) * | 1997-03-19 | 1999-12-28 | Teledyne Industries, Inc. | Light source for backlighting |
| JP2001281655A (en) * | 2000-03-29 | 2001-10-10 | Matsushita Electric Ind Co Ltd | Illumination system and view finder provided with the same |
| US20020024808A1 (en) * | 2000-03-14 | 2002-02-28 | Yoshinobu Suehiro | Light source device |
| KR20050105823A (en) * | 2004-05-03 | 2005-11-08 | 삼성전기주식회사 | Backlight module using led for lcd |
| CN200989981Y (en) * | 2006-08-01 | 2007-12-12 | 芈振伟 | Liquid crystal display device side back light lamp brightness improved structure |
| CN102486276A (en) * | 2010-12-06 | 2012-06-06 | Lg伊诺特有限公司 | Backlight unit |
| CN202327857U (en) * | 2011-11-11 | 2012-07-11 | 上海理工大学 | High-brightness and ultra-thin backlight source |
| CN103775877A (en) * | 2014-01-24 | 2014-05-07 | 李鹤荣 | Reflection type LED (light-emitting diode) illumination lamp |
| CN203940312U (en) * | 2014-05-08 | 2014-11-12 | 杭州杭科光电股份有限公司 | A kind of side entering-type LED backlight source module |
-
2014
- 2014-05-08 CN CN201410192198.8A patent/CN103994367A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6007209A (en) * | 1997-03-19 | 1999-12-28 | Teledyne Industries, Inc. | Light source for backlighting |
| US20020024808A1 (en) * | 2000-03-14 | 2002-02-28 | Yoshinobu Suehiro | Light source device |
| JP2001281655A (en) * | 2000-03-29 | 2001-10-10 | Matsushita Electric Ind Co Ltd | Illumination system and view finder provided with the same |
| KR20050105823A (en) * | 2004-05-03 | 2005-11-08 | 삼성전기주식회사 | Backlight module using led for lcd |
| CN200989981Y (en) * | 2006-08-01 | 2007-12-12 | 芈振伟 | Liquid crystal display device side back light lamp brightness improved structure |
| CN102486276A (en) * | 2010-12-06 | 2012-06-06 | Lg伊诺特有限公司 | Backlight unit |
| CN202327857U (en) * | 2011-11-11 | 2012-07-11 | 上海理工大学 | High-brightness and ultra-thin backlight source |
| CN103775877A (en) * | 2014-01-24 | 2014-05-07 | 李鹤荣 | Reflection type LED (light-emitting diode) illumination lamp |
| CN203940312U (en) * | 2014-05-08 | 2014-11-12 | 杭州杭科光电股份有限公司 | A kind of side entering-type LED backlight source module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895350A (en) * | 2018-08-09 | 2018-11-27 | 深圳市福尔乐照明有限公司 | A kind of ultra-thin LED lamps and lanterns |
| CN109061942A (en) * | 2018-08-15 | 2018-12-21 | 深圳市华星光电技术有限公司 | Side entrance back module and display device |
| CN109061942B (en) * | 2018-08-15 | 2021-03-23 | Tcl华星光电技术有限公司 | Side-in backlight module and display device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |