CN104391406A - Organic light-emitting diode display device - Google Patents
Organic light-emitting diode display device Download PDFInfo
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- CN104391406A CN104391406A CN201410717701.7A CN201410717701A CN104391406A CN 104391406 A CN104391406 A CN 104391406A CN 201410717701 A CN201410717701 A CN 201410717701A CN 104391406 A CN104391406 A CN 104391406A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Abstract
The invention discloses an organic light-emitting diode display device which comprises an organic light-emitting diode display panel, a first polarizer, a second polarizer, a first liquid crystal layer and a second liquid crystal layer. The organic light-emitting diode display panel is provided with a first side and a second side which are opposite to each other, the first polarize is arranged on the first side of the organic light-emitting diode display panel and has a first polarization direction, and the second polarizer is arranged on the second side of the organic light-emitting diode display panel and has a second polarization direction which is orthogonal to the first polarization direction. The first liquid crystal layer is arranged between the first polarizer and the organic light-emitting diode display panel and can be in working states which include a first state and a second state, the second liquid crystal layer is arranged between the second polarizer and the organic light-emitting diode display panel and can be in working states which include a first state and a second state, and the working states of the second liquid crystal layer are identical to the working states of the first liquid crystal layer. The organic light-emitting diode display device has the advantages that the display working stages can be freely switched over as needed, and accordingly double-side transparent display or double-side display effects can be realized.
Description
Technical field
The present invention relates to display technique field, particularly a kind of organic LED display device.
Background technology
Fig. 1 is the structural representation of existing a kind of Organic Light Emitting Diode (Organic Light-EmittingDiode, OLED) display device.As shown in Figure 1, OLED display panel 200 comprises transparency carrier 210 and is set in turn in transparent anode 220, hole transmission layer 230, luminescent layer 240, electron transfer layer 250 and the transparent cathode 260 on transparency carrier 210.Wherein, when certain driving voltage puts on transparent anode 220 and transparent cathode 260, electronics and hole are injected into electron transfer layer 250 and hole transmission layer 230 from transparent cathode 260 and transparent anode 220 respectively, electronics and hole move to luminescent layer 240 respectively through electron transfer layer 250 and hole transmission layer 230, and meet in conjunction with stimulated luminescence in luminescent layer 240.The light M sent from luminescent layer 230 can pass freely through electron transfer layer 250 and transparent cathode 260 and watch display image by beholder from transparent cathode 260 side, or through hole transmission layer 230 and transparent anode 220, and watch display image by beholder from side, thus realize the function of double-sided display.Simultaneously, external ambient light A also can enter OLED display panel 200 via transparency carrier 210, and through OLED display panel 200 from transparent cathode 260 outgoing, and also watched the ambient image of transparency carrier 210 side of OLED display panel 200 from transparent cathode 260 side by beholder.Same principle, external ambient light B also can enter OLED display panel 200 via transparent cathode 260, and through OLED display panel 200 from transparency carrier 210 outgoing, beholder also can watch the ambient image of transparent cathode 260 side of display image and OLED display panel 200 simultaneously from transparency carrier 210 side, therefore, OLED display panel 200 also can realize the function of two-side transparent display.
But, when OLED display panel 200 be in external ambient light stronger when, stronger external ambient light A or B enters OLED display panel 200 from transparent cathode 260 or transparency carrier 210 outgoing by transparency carrier 210 or transparent cathode 260, display image can be watched to beholder and bring great interference, thus affect the viewing effect of beholder.Use OLED display panel 200, cannot select as required not watch the transparency carrier 210 of OLED display panel 200 or the ambient image of transparent cathode 260 side, the viewing user demand of beholder cannot be met.
Summary of the invention
The object of the invention is to, provide a kind of organic LED display device, freely can switch display working condition as required, realize two-side transparent display or double-sided display, to meet the viewing user demand of beholder.
It is adopt following technical scheme to realize that the present invention solves its technical matters.
A kind of organic LED display device, it comprises organic LED display panel, the first polaroid, the second polaroid, the first liquid crystal layer and the second liquid crystal layer.Organic LED display panel has the first relative side and the second side, and the first polaroid is located at this first side and is had the first polarization direction, and the second polaroid is located at the second side and is had second polarization direction orthogonal with the first polarization direction.First liquid crystal layer is located between the first polaroid and organic LED display panel, and the duty of the first liquid crystal layer is the first state or the second state.Second liquid crystal layer is located between the second polaroid and organic LED display panel, and the duty of the second liquid crystal layer is also the first state or the second state, and identical with the duty of the first liquid crystal layer.Wherein, when the duty of the first liquid crystal layer and the duty of the second liquid crystal layer are the first states, the exterior light being incident to the first polaroid through the first liquid crystal layer, organic LED display panel and the second liquid crystal layer from the second polaroid outgoing, the exterior light being incident to the second polaroid through the second liquid crystal layer, organic LED display panel and the first liquid crystal layer from the first polaroid outgoing.When the duty of the first liquid crystal layer and the duty of the second liquid crystal layer are the second states, the exterior light being incident to the first polaroid is absorbed by the second polaroid through the first liquid crystal layer, organic LED display panel and the second liquid crystal layer, and the exterior light being incident to the second polaroid is absorbed by the first polaroid through the second liquid crystal layer, organic LED display panel and the first liquid crystal layer.
In the preferred embodiment, the slow axis direction of the liquid crystal molecule of above-mentioned first liquid crystal layer is parallel to the slow axis direction of the liquid crystal molecule of the second liquid crystal layer.First liquid crystal layer and the second liquid crystal layer are when the first state, the liquid crystal molecule of the first liquid crystal layer and the liquid crystal molecules parallel of the second liquid crystal layer arrange in organic LED display panel, the slow axis direction of the liquid crystal molecule of the first liquid crystal layer and the absorption direction of principal axis of the first polaroid have the first angle, the slow axis direction of the liquid crystal molecule of the second liquid crystal layer and the absorption direction of principal axis of the second polaroid have the second angle, and the first angle equals the second angle.First liquid crystal layer and the second liquid crystal layer are when the second state, and the liquid crystal molecule of the first liquid crystal layer and the liquid crystal molecule of the second liquid crystal layer arrange perpendicular to organic LED display panel.
In the preferred embodiment, above-mentioned first liquid crystal layer and the second liquid crystal layer are when the first state, and the first liquid crystal layer and the first polaroid form the first circular polarizing disk structure, and the second liquid crystal layer and the second polaroid form the second circular polarizing disk structure.First liquid crystal layer and the second liquid crystal layer are when the second state, and the first liquid crystal layer and the first polaroid form First Line polarizer constructions, the second liquid crystal layer and the second polaroid and form the second linear polarizer structure.
In the preferred embodiment, the liquid crystal molecule of above-mentioned first liquid crystal layer and the liquid crystal molecule of the second liquid crystal layer are positivity liquid crystal molecule, first liquid crystal layer and the second liquid crystal layer are without being the first state under electric field action, and the first liquid crystal layer and the second liquid crystal layer are the second state having under electric field action.
In the preferred embodiment, above-mentioned positivity liquid crystal molecule is electrically conerolled birefringence liquid crystal molecule.
In the preferred embodiment, the liquid crystal molecule of above-mentioned first liquid crystal layer and the liquid crystal molecule of the second liquid crystal layer are negative liquid crystal molecule, first liquid crystal layer and the second liquid crystal layer are the first state having under electric field action, and the first liquid crystal layer and the second liquid crystal layer are without being the second state under electric field action.
In the preferred embodiment, above-mentioned negative liquid crystal molecule is homeotropic alignment liquid crystal molecule.
In the preferred embodiment, above-mentioned first angle and the second angle are 45
°.
In the preferred embodiment, above-mentioned organic LED display panel comprises semitransparent cathode, electron transfer layer, luminescent layer, hole transmission layer and semitransparent anode, electron transfer layer and hole transmission layer are arranged at luminescent layer both sides, semitransparent cathode to be arranged on electron transfer layer and relative with the first polaroid, and semitransparent anode to be arranged on hole transmission layer and relative with the second polaroid.
In the preferred embodiment, the liquid crystal molecule that above-mentioned first liquid crystal layer comprises first substrate and second substrate and is filled between first substrate and second substrate, first substrate and second substrate are provided with the first drive electrode.The liquid crystal molecule that second liquid crystal layer comprises the 3rd substrate and tetrabasal and is filled between the two, the 3rd substrate and tetrabasal are provided with the second drive electrode.
The organic LED display device that the present invention proposes, first side of organic LED display panel is provided with the first polaroid and the first liquid crystal layer, second side is provided with the second polaroid and the second liquid crystal layer, by controlling the first liquid crystal layer and the second liquid crystal layer, the first liquid crystal layer and the second liquid crystal layer that make to have identical duty switch between the first state or the second state.When the first liquid crystal layer and the second liquid crystal layer are the first states, the exterior light being incident to the first polaroid and the exterior light being incident to the second polaroid respectively from the second polaroid and the first polaroid outgoing, and make organic LED display device realize two-side transparent display after organic LED display panel.When the first liquid crystal layer and the second liquid crystal layer are the second states, the exterior light being incident to the first polaroid and the exterior light being incident to the second polaroid are absorbed by the second polaroid and the first polaroid respectively after organic LED display panel, and make organic LED display device only realize double-sided display.Therefore, organic LED display device of the present invention freely can switch display working condition as required, realizes two-side transparent display or double-sided display, to meet the viewing user demand of beholder.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of organic LED display device.
Fig. 2 is the structural representation of the organic LED display device of the first embodiment of the present invention.
Fig. 3 is the structural representation that the organic LED display device of the first embodiment of the present invention realizes two-side transparent display.
Fig. 4 is the structural representation that the organic LED display device of the first embodiment of the present invention only realizes double-sided display.
Fig. 5 is the structural representation of the organic LED display device of the second embodiment of the present invention.
Fig. 6 is the structural representation that the organic LED display device of the second embodiment of the present invention realizes two-side transparent display.
Fig. 7 is the structural representation that the organic LED display device of the second embodiment of the present invention only realizes double-sided display.
Embodiment
For further setting forth the technology hand that the present invention takes for reaching predetermined goal of the invention
Section and effect, below in conjunction with accompanying drawing and preferred embodiment, organic to what propose according to the present invention
The embodiment of light emitting display device, structure, feature and effect thereof, in detail
Be described as follows:
Aforementioned and other technology contents, Characteristic for the present invention, can know and present in the detailed description of following cooperation with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, however institute's accompanying drawings be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Fig. 2 is the structural representation of the organic LED display device of the first embodiment of the present invention.As shown in Figure 2, in the present embodiment, organic LED display device 100 comprises organic LED display panel 110, first polaroid 120, second polaroid 130, first liquid crystal layer 140 and the second liquid crystal layer 150.Organic LED display panel 110 has the first relative side 112 and the second side 113.The first side 112, second polaroid 130 that first polaroid 120 is located at organic LED display panel 110 is located at the second side 113 of organic LED display panel 110.First liquid crystal layer 140 is located at the first side 112 of organic LED display panel 110, and between the first polaroid 120 and organic LED display panel 110, second liquid crystal layer 150 is located at the second side 113 of organic LED display panel 110, and between the second polaroid 130 and organic LED display panel 110.
Particularly, organic LED display panel 110 comprises transparency carrier 114 and is set in turn in transparent anode 115, hole transmission layer 116, luminescent layer 117, electron transfer layer 118 and the transparent cathode 119 on transparency carrier 114.Transparency carrier 114 is positioned at the second side 113 of organic LED display panel 110, relative with the second liquid crystal layer 150.Transparent cathode 119 is positioned at the first side 112 of organic LED display panel 110, relative with the first liquid crystal layer 140.
First polaroid 120 has the first polarization direction, and the second polaroid 130 has second polarization direction orthogonal with the first polarization direction.That is, the absorption direction of principal axis of the first polaroid 120 is perpendicular to the absorption direction of principal axis of the second polaroid 130.
The liquid crystal molecule that first liquid crystal layer 140 comprises first substrate (not shown) and second substrate (not shown) and is filled between first substrate and second substrate, first substrate and second substrate are provided with the first drive electrode (not shown), first drive electrode can produce driving electric field under driving voltage effect, and the liquid crystal molecule be between first substrate and second substrate is deflected along with driving the direction of electric field.Roughly the same with the first liquid crystal layer 140, second liquid crystal layer 150 comprises the 3rd substrate (not shown) and tetrabasal (not shown) and is filled in the 3rd liquid crystal molecule between substrate and tetrabasal, 3rd substrate and tetrabasal are provided with the second drive electrode (not shown), second drive electrode can produce driving electric field under driving voltage effect, makes to be in the 3rd liquid crystal molecule between substrate and tetrabasal along with driving direction of an electric field to deflect.In the present embodiment, the liquid crystal molecule of the first liquid crystal layer 140 and the liquid crystal molecule of the second liquid crystal layer 150 are positivity liquid crystal molecule such as electrically conerolled birefringence liquid crystal molecules.The slow axis direction of the liquid crystal molecule of the first liquid crystal layer 140 is parallel to the slow axis direction of the liquid crystal molecule of the second liquid crystal layer 150, and the first liquid crystal layer 140 and the second liquid crystal layer 150 have identical duty.
Duty below with reference to the first liquid crystal layer 140 and the second liquid crystal layer 150 is further described organic LED display device 100.
Fig. 3 is the structural representation that the organic LED display device of the first embodiment of the present invention realizes two-side transparent display.Refer to Fig. 3, in the present embodiment, the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the first state.Now, do not have driving voltage to act on the first drive electrode and the second drive electrode, namely the liquid crystal molecule of the first liquid crystal layer 140 and the liquid crystal molecule of the second liquid crystal layer 150 are not all subject to drive electric field driven effect yet.The liquid crystal molecule of the first liquid crystal layer 140 and the liquid crystal molecules parallel of the second liquid crystal layer 150 arrange in organic LED display panel 110, the slow axis direction of the liquid crystal molecule of the first liquid crystal layer 140 is parallel to the slow axis direction of the liquid crystal molecule of the second liquid crystal layer 150, the slow axis direction of the liquid crystal molecule of the first liquid crystal layer 140 and the absorption direction of principal axis of the first polaroid 120 have the first angle, the slow axis direction of the liquid crystal molecule of the second liquid crystal layer 150 and the absorption direction of principal axis of the second polaroid 130 have the second angle, and the first angle equals the second angle.First angle and the second angle are preferably 45 °.Now, first liquid crystal layer 140 has the function of quarter-wave plate, and form with the first polaroid 120 function that first circular polarizing disk structure 101, second liquid crystal layer 150 has quarter-wave plate, and form the second circular polarizing disk structure 102 with the second polaroid 130.
Particularly, when the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the first state, external ambient light E1 incides the first polaroid 120 becomes linearly polarized photon, circularly polarized light that is left-handed or dextrorotation is converted to again after the first liquid crystal layer 140, then through organic LED display panel 110, circularly polarized light through organic LED display panel 110 is converted to linearly polarized photon through the second liquid crystal layer 150 again, linearly polarized photon after incident first polaroid 120 is compared in the polarization direction of linearly polarized photon now have rotated 90 °, its polarization direction vertical with the absorption direction of principal axis of its second polaroid 130 (also namely parallel with the light transmission shaft direction of the second polaroid 130), thus can from the second polaroid 130 outgoing.Similarly, external ambient light E2 incides the second polaroid 130 becomes linearly polarized photon, circularly polarized light that is left-handed or dextrorotation is converted to again after the second liquid crystal layer 150, then through organic LED display panel 110, circularly polarized light through organic LED display panel 110 is converted to linearly polarized photon through the first liquid crystal layer 140 again, linearly polarized photon after incident second polaroid 130 is compared in the polarization direction of linearly polarized photon now have rotated 90 °, its polarization direction vertical with the absorption direction of principal axis of its first polaroid 120 (also namely parallel with the light transmission shaft direction of the first polaroid 120), thus can from the first polaroid 120 outgoing.Therefore, the external ambient light E1 being incident to the first polaroid 120 through the first liquid crystal layer 140, organic LED display panel 110 and the second liquid crystal layer 150 from the second polaroid 130 outgoing, the external ambient light E2 being incident to the second polaroid 130 is through the second liquid crystal layer 150, organic LED display panel 110 and the first liquid crystal layer 140 from the first polaroid 120 outgoing, thus organic LED display device 100 can realize Transparence Display.It is worth mentioning that, the image light I sent from the luminescent layer 117 of organic LED display panel 110 can through electron transfer layer 118 and transparent cathode 119 through the first liquid crystal layer 140 and the first polaroid 120 outgoing, the image light I sent from the luminescent layer 117 of organic LED display panel 110 also can pass hole transmission layer 116, transparent anode 115 and transparency carrier 114 second liquid crystal layer 150 and the second polaroid 130 outgoing, thus organic LED display device 100 can realize double-sided display.Therefore, when the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the first state, organic LED display device 100 can realize two-side transparent display.
Fig. 4 is the structural representation that the organic LED display device of the first embodiment of the present invention only realizes double-sided display.Refer to Fig. 4, in the present embodiment, the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the second state.Now, driving voltage acts on the first drive electrode and the second drive electrode respectively, also namely the liquid crystal molecule of the first liquid crystal layer 140 and the liquid crystal molecule of the second liquid crystal layer 150 all by driving electric field driven effect.The liquid crystal molecule of the first liquid crystal layer 140 and the liquid crystal molecule of the second liquid crystal layer 150 deflect and arrange perpendicular to organic LED display panel 110 under the effect driving electric field.Now, the first liquid crystal layer 140 no longer has the function of quarter-wave plate, and the change of any polarization direction and phase place can not occur through the light of the first liquid crystal layer 140, and the first liquid crystal layer 140 and the first polaroid 120 form First Line and to shake chip architecture 103.Second liquid crystal layer 150 no longer has the function of quarter-wave plate, and the change of any polarization direction and phase place can not occur through the light of the second liquid crystal layer 150, and the second liquid crystal layer 150 and the second polaroid 130 form the second linear polarizer structure 104.
Particularly, when the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the second state, external ambient light E1 incides the first polaroid 120 becomes linearly polarized photon, again through the first liquid crystal layer 140, the change of any polarization direction and phase place can not be there is through the light of the first liquid crystal layer 140, then through organic LED display panel 110, through the linearly polarized light of organic LED display panel 110 again through the second liquid crystal layer 150, also the change of any polarization direction and phase place can not be there is through the light of the second liquid crystal layer 150, now, arrive the polarisation of light direction parallel with the absorption direction of principal axis of its second polaroid 130 (also namely vertical with the light transmission shaft direction of the second polaroid 130) of the second polaroid 130, thus absorbed by the second polaroid 130, cannot through the second polaroid 130.Similarly, external ambient light E2 incides the second polaroid 130 becomes linearly polarized photon, again through the second liquid crystal layer 150, also the change of any polarization direction and phase place can not be there is through the light of the second liquid crystal layer 150, then through organic LED display panel 110, through the linearly polarized light of organic LED display panel 110 again through the first liquid crystal layer 140, the change of any polarization direction and phase place can not be there is through the light of the first liquid crystal layer 140, now, arrive the polarisation of light direction parallel with the absorption direction of principal axis of its first polaroid 120 (also namely vertical with the light transmission shaft direction of the first polaroid 120) of the first polaroid 120, thus absorbed by the first polaroid 120, cannot through the first polaroid 120.Therefore, the external ambient light E1 being incident to the first polaroid 120 is absorbed by the second polaroid 130 through the first liquid crystal layer 140, organic LED display panel 110 and the second liquid crystal layer 150, the external ambient light E2 being incident to the second polaroid 130 is absorbed by the first polaroid 120 through the second liquid crystal layer 150, organic LED display panel 110 and the first liquid crystal layer 140, thus organic LED display device 100 does not carry out Transparence Display.It is worth mentioning that, the image light I sent from the luminescent layer 117 of organic LED display panel 110 can through electron transfer layer 118 and transparent cathode 119 through the first liquid crystal layer 140 and the first polaroid 120 outgoing, the image light I sent from the luminescent layer 117 of organic LED display panel 110 also can pass hole transmission layer 116, transparent anode 115 and transparency carrier 114 second liquid crystal layer 150 and the second polaroid 130 outgoing, thus organic LED display device 100 still can realize double-sided display.Therefore, when the duty of the first liquid crystal layer 140 and the duty of the second liquid crystal layer 150 are the second state, organic LED display device 100 only can realize double-sided display.
Fig. 5 is the structural representation of the organic LED display device of the second embodiment of the present invention.As shown in Figure 5, in the present embodiment, the structure of organic LED display device 100 ' is roughly the same with the structure of the organic LED display device 100 of the first embodiment, and difference is, the first liquid crystal layer 140 ' in the present embodiment is different with the liquid crystal molecule of the second liquid crystal layer 150 '.In the present embodiment, the first liquid crystal layer 140 ' of organic LED display device 100 ' and the liquid crystal molecule of the second liquid crystal layer 150 ' are negative liquid crystal molecule such as homeotropic alignment liquid crystal molecule.Duty below with reference to the first liquid crystal layer 140 ' and the second liquid crystal layer 150 ' is further described organic LED display device 100 '.
Fig. 6 is the structural representation that the organic LED display device of the second embodiment of the present invention realizes two-side transparent display.Refer to Fig. 6, in the present embodiment, the duty of the first liquid crystal layer 140 ' and the duty of the second liquid crystal layer 150 ' are the first state.Now, driving voltage acts on the first drive electrode and the second drive electrode, also namely the liquid crystal molecule of the first liquid crystal layer 140 ' and the liquid crystal molecule of the second liquid crystal layer 150 ' all by driving electric field driven effect.The liquid crystal molecule of the first liquid crystal layer 140 ' and the liquid crystal molecule of the second liquid crystal layer 150 ' deflect by electric field force effect, liquid crystal molecules parallel after polarization arranges in organic LED display panel 110, the slow axis direction of the liquid crystal molecule of the first liquid crystal layer 140 ' is parallel to the slow axis direction of the liquid crystal molecule of slow axis direction first liquid crystal layer 140 ' of the liquid crystal molecule of the second liquid crystal layer 150 ', and with the absorption direction of principal axis of the first polaroid 120, there is the first angle, the slow axis direction of the liquid crystal molecule of the second liquid crystal layer 150 ', and with the absorption direction of principal axis of the second polaroid 130, there is the second angle, and the first angle equals the second angle.First angle and the second angle are preferably 45 °.Now, first liquid crystal layer 140 ' has the function of quarter-wave plate, and form with the first polaroid 120 function that first circular polarizing disk structure 101 ', the second liquid crystal layer 150 ' has quarter-wave plate, and form the second circular polarizing disk structure 102 ' with the second polaroid 130.
When the duty of the first liquid crystal layer 140 ' in the present embodiment and the duty of the second liquid crystal layer 150 ' are the first state, identical when being the first state with the duty of the first liquid crystal layer 140 in the first embodiment with the duty of the second liquid crystal layer 150, do not repeat them here.The external ambient light E1 being incident to the first polaroid 120 through the first liquid crystal layer 140 ', organic LED display panel 110 and the second liquid crystal layer 150 ' from the second polaroid 130 outgoing, the external ambient light E2 being incident to the second polaroid 130 is through the second liquid crystal layer 150 ', organic LED display panel 110 and the first liquid crystal layer 140 ' from the first polaroid 120 outgoing, thus organic LED display device 100 ' can realize Transparence Display.Meanwhile, the image light I sent from the luminescent layer 117 of organic LED display panel 110 can from the first polaroid 120 and the second polaroid 130 outgoing, thus organic LED display device 100 ' also can realize double-sided display.Therefore, when the duty of the first liquid crystal layer 140 ' and the duty of the second liquid crystal layer 150 ' are the first state, organic LED display device 100 ' can realize two-side transparent display.
Fig. 7 is the structural representation that the organic LED display device of the second embodiment of the present invention only realizes double-sided display.Refer to Fig. 7, when the duty of the first liquid crystal layer 140 ' and the duty of the second liquid crystal layer 150 ' are the second state.Now, the first drive electrode and the second drive electrode do not produce driving voltage, and namely the liquid crystal molecule of the first liquid crystal layer 140 ' and the liquid crystal molecule of the second liquid crystal layer 150 ' are not subject to drive electric field driven effect yet.The liquid crystal molecule of the first liquid crystal layer 140 ' and the liquid crystal molecule of the second liquid crystal layer 150 ' arrange perpendicular to organic LED display panel 110.Now, the first liquid crystal layer 140 ' no longer has the function of quarter-wave plate, and the change of any polarization direction and phase place can not occur through the light of the first liquid crystal layer 140 ', and the first liquid crystal layer 140 and the first polaroid 120 form First Line and to shake chip architecture 103 '.Second liquid crystal layer 150 ' no longer has the function of quarter-wave plate, and the change of any polarization direction and phase place can not occur through the light of the second liquid crystal layer 150 ', and the second liquid crystal layer 150 ' and the second polaroid 130 form the second linear polarizer structure 104 '.
When the duty of the first liquid crystal layer 140 ' in the present embodiment and the duty of the second liquid crystal layer 150 ' are the second state, identical when being the second state with the duty of the first liquid crystal layer 140 in the first embodiment with the duty of the second liquid crystal layer 150, do not repeat them here.The external ambient light E1 being incident to the first polaroid 120 is absorbed by the second polaroid 130 through the first liquid crystal layer 140 ', organic LED display panel 110 and the second liquid crystal layer 150 ', the external ambient light E2 being incident to the second polaroid 130 is absorbed by the first polaroid 120 through the second liquid crystal layer 150, organic LED display panel 110 and the first liquid crystal layer 140 ', thus organic LED display device 100 does not carry out Transparence Display.Meanwhile, the image light I sent from the luminescent layer 117 of organic LED display panel 110 can from the first polaroid 120 and the second polaroid 130 outgoing, thus organic LED display device 100 still can realize double-sided display.Therefore, when the duty of the first liquid crystal layer 140 ' and the duty of the second liquid crystal layer 150 ' are the second state, organic LED display device 100 only can realize double-sided display.
Be understandable that, organic LED display device 100, it is all positivity liquid crystal molecule that the liquid crystal molecule be arranged in the first liquid crystal layer 140 of the first side 112 of organic LED display panel 110 and the second liquid crystal layer 150 of the second side 113 does not limit, organic LED display device 100 ', it is all negative liquid crystal molecule that the liquid crystal molecule be arranged in the first liquid crystal layer 140 ' of the first side 112 of organic LED display panel 110 and the second liquid crystal layer 150 ' of the second side 113 does not limit, also the first side 112 that can be organic LED display panel 110 arranges liquid crystal layer second side 113 with positivity liquid crystal molecule and arranges the liquid crystal layer with negative liquid crystal molecule, or the first side 112 of organic LED display panel 110 arranges liquid crystal layer second side 113 with negative liquid crystal molecule and arranges the liquid crystal layer with positivity liquid crystal molecule, and realize corresponding function according to aforementioned principles design driven, do not repeat them here.
The organic LED display device 100 that the present invention proposes, organic LED display panel 110 first side 112 of 100 ' arranges the first polaroid 120 and the first liquid crystal layer 140, 140 ', second side 113 arranges the second polaroid 130 and the second liquid crystal layer 150, 150 ', by controlling the first liquid crystal layer 140, 140 ' and second liquid crystal layer 150, 150 ', make first liquid crystal layer 140 with identical duty, 140 ' and second liquid crystal layer 150, 150 ' switches between the first state or the second state, when the first liquid crystal layer 140, 140 ' and second liquid crystal layer 150, 150 ' when being the first state, the exterior light being incident to the first polaroid 120 and the external ambient light E1 being incident to the second polaroid 130 and E2 after organic LED display panel 110 respectively from the second polaroid 130 and the first polaroid 120 outgoing, and make organic LED display device 100, 100 ' realizes two-side transparent display.When the first liquid crystal layer 140,140 ' and second liquid crystal layer 150,150 ' is the second state, the exterior light being incident to the first polaroid 120 and the external ambient light E1 being incident to the second polaroid 130 and E2 are absorbed by the second polaroid 130 and the first polaroid 120 respectively after organic LED display panel 110, and make organic LED display device 100,100 ' only realize double-sided display.Therefore, organic LED display device 100,100 ' of the present invention freely can switch display working condition as required, realizes two-side transparent display or double-sided display, to meet the viewing user demand of beholder.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.Each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
Claims (10)
1. an organic LED display device, is characterized in that, it comprises:
Organic LED display panel, has the first relative side and the second side;
First polaroid, is located at this first side and has the first polarization direction;
Second polaroid, is located at this second side and has second polarization direction orthogonal with this first polarization direction;
First liquid crystal layer, is located between this first polaroid and this organic LED display panel, and the duty of this first liquid crystal layer is the first state or the second state; And
Second liquid crystal layer, is located between this second polaroid and this organic LED display panel, and the duty of this second liquid crystal layer is also this first state or this second state, and identical with this duty of this first liquid crystal layer;
Wherein, when this duty of this first liquid crystal layer and this duty of this second liquid crystal layer are this first states, the exterior light being incident to this first polaroid passes through this first liquid crystal layer, this organic LED display panel and this second liquid crystal layer from this second polaroid outgoing, and the exterior light being incident to this second polaroid passes through this second liquid crystal layer, this organic LED display panel and this first liquid crystal layer from this first polaroid outgoing; When this duty of this first liquid crystal layer and this duty of this second liquid crystal layer are this second states, this exterior light being incident to this first polaroid is absorbed by this second polaroid through this first liquid crystal layer, this organic LED display panel and this second liquid crystal layer, and this exterior light being incident to this second polaroid is absorbed by this first polaroid through this second liquid crystal layer, this organic LED display panel and this first liquid crystal layer.
2. organic LED display device as claimed in claim 1, it is characterized in that, the slow axis direction of the liquid crystal molecule of this first liquid crystal layer is parallel to the slow axis direction of the liquid crystal molecule of this second liquid crystal layer, this first liquid crystal layer and this second liquid crystal layer are when this first state, this liquid crystal molecule of this first liquid crystal layer and this liquid crystal molecules parallel of this second liquid crystal layer arrange in this organic LED display panel, this slow axis direction of this liquid crystal molecule of this first liquid crystal layer and the absorption direction of principal axis of this first polaroid have the first angle, this slow axis direction of this liquid crystal molecule of this second liquid crystal layer and the absorption direction of principal axis of this second polaroid have the second angle, and this first angle equals this second angle, this first liquid crystal layer and this second liquid crystal layer are when this second state, and this liquid crystal molecule of this first liquid crystal layer and this liquid crystal molecule of this second liquid crystal layer arrange perpendicular to this organic LED display panel.
3. organic LED display device as claimed in claim 1, it is characterized in that, this first liquid crystal layer and this second liquid crystal layer are when this first state, this first liquid crystal layer and this first polaroid form the first circular polarizing disk structure, and this second liquid crystal layer and this second polaroid form the second circular polarizing disk structure; This first liquid crystal layer and this second liquid crystal layer are when this second state, and this first liquid crystal layer and this first polaroid form First Line polarizer constructions, and this second liquid crystal layer and this second polaroid form the second linear polarizer structure.
4. organic LED display device as claimed in claim 2, it is characterized in that, this liquid crystal molecule of this first liquid crystal layer and this liquid crystal molecule of this second liquid crystal layer are positivity liquid crystal molecule, this first liquid crystal layer and this second liquid crystal layer are without under electric field action be this first state, and this first liquid crystal layer and this second liquid crystal layer are this second state having under electric field action.
5. display device as claimed in claim 4, it is characterized in that, this positivity liquid crystal molecule is electrically conerolled birefringence liquid crystal molecule.
6. organic LED display device as claimed in claim 2, it is characterized in that, this liquid crystal molecule of this first liquid crystal layer and this liquid crystal molecule of this second liquid crystal layer are negative liquid crystal molecule, this first liquid crystal layer and this second liquid crystal layer are this first state having under electric field action, and this first liquid crystal layer and this second liquid crystal layer are without under electric field action being this second state.
7. organic LED display device as claimed in claim 6, it is characterized in that, this negative liquid crystal molecule is homeotropic alignment liquid crystal molecule.
8. organic LED display device as claimed in claim 2, is characterized in that, this first angle and this second angle are 45 °.
9. organic LED display device as claimed in claim 1, it is characterized in that, this organic LED display panel comprises semitransparent cathode, electron transfer layer, luminescent layer, hole transmission layer and semitransparent anode, this electron transfer layer and this hole transmission layer are arranged at this luminescent layer both sides, this semitransparent cathode to be arranged on this electron transfer layer and relative with this first polaroid, and this semitransparent anode to be arranged on this hole transmission layer and relative with the second polaroid.
10. organic LED display device as claimed in claim 1, it is characterized in that, the liquid crystal molecule that this first liquid crystal layer comprises first substrate and second substrate and is filled between this first substrate and this second substrate, this first substrate and this second substrate are provided with the first drive electrode; The liquid crystal molecule that this second liquid crystal layer comprises the 3rd substrate and tetrabasal and is filled between the two, the 3rd substrate and this tetrabasal are provided with the second drive electrode.
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |