CN105068177A - Optical assembly and display device - Google Patents
Optical assembly and display device Download PDFInfo
- Publication number
- CN105068177A CN105068177A CN201510600233.XA CN201510600233A CN105068177A CN 105068177 A CN105068177 A CN 105068177A CN 201510600233 A CN201510600233 A CN 201510600233A CN 105068177 A CN105068177 A CN 105068177A
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- CN
- China
- Prior art keywords
- light
- guide plate
- photic zone
- optical module
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides an optical assembly and a display device. The optical assembly comprises a substrate, and further comprises an optical waveguide structure disposed on at least one side of the substrate. The optical waveguide structure can refract incoming light to make the light go out along a predetermined direction. The optical waveguide structure comprises multiple light transmission layers which are arranged in a stacked manner and used to refract light. The display device provided by the invention comprises the optical assembly provided by any embodiment of the invention.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of optical module, display device.
Background technology
In existing conventional LCD device part, need above light guide plate to arrange optical gain film material, at utmost to reach required brightness.The optical gain film material used in current module, i.e. prismatic lens, its upper surface is that the microprism being a few to tens of microns by spacing rearranges, the structure of this height optically focused can make the light of vertical exit reach maximization, but what the high light of a direction also can be concentrated by its prism structures injects human eye, produces dazzle simultaneously.
Dazzle refers to owing to being not suitable for Luminance Distribution in the visual field, or in space or exist extreme brightness contrast the time, so that causes vision uncomfortable and reduce the visual condition of object visibility; Produce the light sensation that human eye cannot adapt in the visual field, even detest, uncomfortable forfeiture legibility may be caused, in the visual field certain-local area occurs that too high brightness or front and back excessive brightness occur and change.Dazzle is one of major reason causing visual fatigue.
Summary of the invention
In view of this, the invention provides a kind of optical module, display device, the dazzle produced because of optical gain film material can be reduced or eliminated.
Based on above-mentioned purpose optical module provided by the invention, comprise substrate, it is characterized in that, also comprise the optical waveguide structure being positioned at described substrate at least side, incident ray can reflect by described optical waveguide structure, makes described light along predetermined direction outgoing; Described optical waveguide structure comprises the photic zone for refracted ray of multiple stacked setting.
Optionally, described substrate is light guide plate; Described optical waveguide structure comprises:
Be positioned at the first light waveguide-layer with the described relative side of light guide plate light emission side, can, by the first light reflection with described light guide plate light emission side relative side outgoing, make the first light along the incident light guide plate of the first predetermined direction.
Optionally, described first light waveguide-layer comprises multiple the first photic zone of being arranged alternately and the second photic zone; Described first photic zone is different with the second euphotic refractive index.
Optionally, described first photic zone and second euphotic total number of plies are no less than 500.
Optionally, described first photic zone and the second euphotic specific refractivity are no more than 0.3.
Optionally, described substrate is light guide plate; Described optical waveguide structure comprises:
Be positioned at the second light waveguide-layer of light guide plate light emission side, can, by the second light refraction from the outgoing of light guide plate light emission side, make the second light along the second predetermined direction outgoing.
Optionally, described substrate is the infrabasal plate of display panels; Described optical waveguide structure comprises:
Be positioned at second light waveguide-layer of described infrabasal plate away from the side of liquid crystal layer, can, by the second light refraction from the described infrabasal plate of incidence, make the second light along the second predetermined direction outgoing.
Optionally, described second light waveguide-layer comprises the 3rd different photic zone of multiple refractive index, and on light transmition direction, described 3rd euphotic refractive index reduces gradually.
Optionally, described 3rd euphotic total number of plies is no less than 10 layers.
Optionally, the specific refractivity between adjacent described 3rd photic zone is no more than 0.3.
Further, the invention provides a kind of display device, comprise the optical module that any one embodiment of the present invention provides.
As can be seen from above, optical module provided by the present invention and display device, be provided with optical waveguide structure, can by the light refraction that shines outside light guide plate or reflection, make light along predetermined direction outgoing or incide in light guide plate, improving the light amount of predetermined direction outgoing; Optical waveguide structure has played the effect of optical gain rete of the prior art, thus make in backlight module provided by the present invention without the need to arranging optical gain film material again, eliminate the glare phenomenon produced because of the prism structure of optical gain film material, improve display effect; User, when using display device, can not produce visual fatigue etc. because of dazzle, enhances the comfort level that user uses.
Accompanying drawing explanation
Fig. 1 is the optical assembly structure schematic diagram of an embodiment of the present invention;
Fig. 2 is the first light waveguide-layer structural representation of the embodiment of the present invention;
Fig. 3 is the second light waveguide-layer structural representation of the embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
First the present invention provides a kind of optical module, comprises substrate, and also comprise the optical waveguide structure being positioned at described substrate at least side, incident ray can reflect by described optical waveguide structure, makes described light along predetermined direction outgoing; Described optical waveguide structure comprises the photic zone for refracted ray of multiple stacked setting.
Optical waveguide (OpticalWaveguide) is the leading structure of the transmission light frequency electromagnetic waves be made up of optical transparency medium.The transmission principle of optical waveguide is on the dielectric interface of different refractivity, and electromagnetic total reflection phenomenon makes light wave be confined to waveguide and the interior propagation of limited area around thereof.Optical waveguide can make light propagate according to design route, reduces unnecessary light loss, improves light efficiency.Optical module provided by the invention, be provided with optical waveguide structure, the light of light guide plate both sides outgoing can be made along predetermined direction outgoing, thus in permission liquid crystal display, save this structure of optical gain film material, also eliminate the dazzle produced because of optical gain film material further, promote user's experience and comfort.
In some embodiments of the invention, described optical assembly structure as shown in Figure 1, described substrate is light guide plate 101, described optical module also comprises the optical waveguide structure of light emission side and/or the side relative to described light emission side being positioned at described light guide plate 101, described optical waveguide structure can, by the light refraction of described light guide plate outgoing, make described light along predetermined direction outgoing; Described optical waveguide structure comprises the photic zone of multilayer for refracted ray.In present pre-ferred embodiments, when described substrate is light guide plate, described optical waveguide structure comprises above-mentioned first light waveguide-layer.
In the specific embodiment of the invention, described predetermined direction refers to the direction perpendicular to light guide plate, or is basically perpendicular to the direction of light guide plate.
In the light of light guide plate outgoing, some is not propagated along the direction perpendicular to light guide plate, and light transmition, to other direction, can cause brightness in the view directions perpendicular to light guide plate to reduce; Adopt optical waveguide structure by this part light refraction to close to vertical or perpendicular on the direction of light guide plate, the brightness in the view directions of vertical light guide plate can be increased, play the effect improving visual effect; Simultaneously because optical waveguide structure can play the optical gain effect that optical gain film material of the prior art can reach, thus optical gain film material can omit, and therefore the glare phenomenon produced because of optical gain film material is also eliminated; In addition, the photic zone that optical waveguide structure adopts multilayer basic parallel with light guide plate, each photic zone produces twice refraction to light, equally can not produce the phenomenon of dazzle to prism.
Light guide plate many uses PC (Polycarbonate of our use at present, polycarbonate), PMMA (PolymethylMethacrylate, polymethylmethacrylate) etc. resin material, but due to the refractive index difference of air and resin material, most of incident light is made namely to there occurs total reflection before not entering light guide plate, last loss.For this problem, the present invention arranges multiple photic zone in optical waveguide structure, reduces the loss of incident light, improves light efficiency.
In some embodiments of the invention, still with reference to Fig. 1, described optical waveguide structure comprises:
Be positioned at the first light waveguide-layer 102 with the described relative side of light guide plate light emission side, can, by the first light reflection with the relative side outgoing of described light guide plate 101 light emission side, make the first light along the incident light guide plate 101 of the first predetermined direction.
The light in light guide plate is incided in lamp bar side, and some may from the relative side outgoing of light guide plate light emission side, and this part light cannot play display effect.The embodiment of the present invention arranges the first light waveguide-layer in the relative side of light emission side, the light Collection utilization again that light guide plate is outer, be wasted can be shone in prior art, improve the utilization factor of light, make the light of light guide plate light emission side outgoing increase, brightness is improved simultaneously.
In some embodiments of the invention, with reference to Fig. 2, described first light waveguide-layer 102 comprises the first photic zone 1021 and the second photic zone 1022 that multilayer is arranged alternately; Described first photic zone 1021 is different with the refractive index of the second photic zone 1022.Multilayer first photic zone 1021 and the superposition of the second photic zone 1022 interval, make the successively gradual change of light transmition direction, finally incide in light guide plate along the first predetermined direction.Wherein, dotted arrow represents light path and light transmition direction.
In some embodiments of the invention, described first photic zone and second euphotic total number of plies are no less than 500.First euphotic total number of plies is equal haply with second euphotic total number of plies, approximately each at least 250 layers.
In some embodiments of the invention, described first photic zone and the second euphotic specific refractivity are no more than 0.3.Described first photic zone is made by the bi-material that refractive index is different with the second photic zone, first euphotic refractive index is greater than the second euphotic refractive index, bi-material refringence may not exceed 0.3, and bi-material successively adds up, and every layer is not from tens nm to hundreds of nm etc.
If the refringence between adjacent photic zone is excessive, easily cause coming off of connecting between photic zone, and combination interface between photic zone is unstable, light path cannot change according to predetermined trend; Therefore, the refringence between the first photic zone and the second photic zone is unsuitable excessive.
In some embodiments of the invention, still with reference to Fig. 1, described substrate is guide-lighting, 101; Described optical waveguide structure comprises:
Be positioned at the second light waveguide-layer 103 of light guide plate light emission side, can, by the second light refraction from the outgoing of light guide plate 101 light emission side, make the second light along the second predetermined direction outgoing.After the second light waveguide-layer 103, most of light can near normal outgoing.
In other embodiments of the present invention, described substrate is the infrabasal plate of display panels; Described optical waveguide structure comprises:
Be positioned at second light waveguide-layer of described infrabasal plate away from the side of liquid crystal layer, can, by the second light refraction from the described infrabasal plate of incidence, make the second light along the second predetermined direction outgoing.
When described substrate is the infrabasal plate of display panels, the second light waveguide-layer is integrated to be arranged on infrabasal plate, contributes to thinning backlight module.
In some embodiments of the invention, with reference to Fig. 3, described second light waveguide-layer 103 comprises the 3rd different photic zone 1031 of multilayer refractive index, and on light transmition direction, the refractive index of described 3rd photic zone 1031 increases from the side away from light guide plate successively to the side near light guide plate.Wherein, dotted arrow represents light path and light transmition direction.
By above-described embodiment, light transmition direction can being made changing gradually through every one deck photic zone, being finally refracted to the second predetermined direction.3rd euphotic making material can be identical, also can be different.
In some embodiments of the invention, described 3rd euphotic total number of plies is no less than 10 layers.In order to ensure that light is to the second predetermined direction, the second light waveguide-layer should comprise abundant photic zone.
In some embodiments of the invention, the specific refractivity between adjacent described 3rd photic zone is no more than 0.3.
In some embodiments of the invention, described photic zone adopts identical material to make, and is provided with the alloy that ratio is different in each photic zone; Or described photic zone adopts different materials to make.
Concrete, described optical waveguide structure is polycarbonate or semiconductor fabrication.
In some embodiments of the invention, described predetermined direction is the direction perpendicular to light guide plate.
Optical module provided by the invention, is applicable to existing TFT-LCD (ThinFilmTransistorLiquidCrystalDisplay, thin film transistor liquid crystal display screen) liquid crystal panel.
The embodiment of the present invention additionally provides a kind of display device, comprises above-mentioned optical module.This display device can be: Electronic Paper, TV, display, digital album (digital photo frame), mobile phone, panel computer etc. have product or the parts of any Presentation Function.
As can be seen from above, optical module provided by the present invention and display device, be provided with optical waveguide structure, can by the light refraction that shines outside light guide plate or reflection, make light along predetermined direction outgoing or incide in light guide plate, improving the light amount of predetermined direction outgoing; Optical waveguide structure has played the effect of optical gain rete of the prior art, thus make in backlight module provided by the present invention without the need to arranging optical gain film material again, eliminate the glare phenomenon produced because of the prism structure of optical gain film material, improve display effect; User, when using display device, can not produce visual fatigue etc. because of dazzle, enhances the comfort level that user uses.
In some embodiments of the invention, described optical module comprises the first light waveguide-layer and the second light waveguide-layer simultaneously, and the first light waveguide-layer is arranged at the side of light guide plate away from light emission side; The light emission side that second light waveguide-layer is arranged at light guide plate or the side be arranged at away from liquid crystal layer on display panels infrabasal plate.By the optical waveguide structure that multilayer photic zone forms, not only can not produce dazzle, and lamp bar can be increased incide light amount in light guide plate; Meanwhile, the first light waveguide-layer is conducive to utilizing completely the light in light guide plate, improves light utilization; Second light waveguide-layer to have the light refraction of light guide plate outgoing to predetermined direction, makes light can concentrate directed outgoing, improves light efficiency.
Should be appreciated that multiple embodiments described by this instructions are only for instruction and explanation of the present invention, are not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. an optical module, comprises substrate, it is characterized in that, also comprise the optical waveguide structure being positioned at described substrate at least side, incident ray can reflect by described optical waveguide structure, makes described light along predetermined direction outgoing; Described optical waveguide structure comprises the photic zone for refracted ray of multiple stacked setting.
2. optical module according to claim 1, is characterized in that, described substrate is light guide plate; Described optical waveguide structure comprises:
Be positioned at the first light waveguide-layer with the described relative side of light guide plate light emission side, can, by the first light reflection with described light guide plate light emission side relative side outgoing, make the first light along the incident light guide plate of the first predetermined direction.
3. optical module according to claim 2, is characterized in that, described first light waveguide-layer comprises multiple the first photic zone of being arranged alternately and the second photic zone; Described first photic zone is different with the second euphotic refractive index.
4. optical module according to claim 3, is characterized in that, described first photic zone and second euphotic total number of plies are no less than 500.
5. optical module according to claim 3, is characterized in that, described first photic zone and the second euphotic specific refractivity are no more than 0.3.
6. optical module according to claim 1, is characterized in that, described substrate is light guide plate; Described optical waveguide structure comprises:
Be positioned at the second light waveguide-layer of light guide plate light emission side, can, by the second light refraction from the outgoing of light guide plate light emission side, make the second light along the second predetermined direction outgoing.
7. optical module according to claim 1, is characterized in that, described substrate is the infrabasal plate of display panels; Described optical waveguide structure comprises:
Be positioned at second light waveguide-layer of described infrabasal plate away from the side of liquid crystal layer, can, by the second light refraction from the described infrabasal plate of incidence, make the second light along the second predetermined direction outgoing.
8. the optical module according to claim 6 or 7, is characterized in that, described second light waveguide-layer comprises the 3rd different photic zone of multiple refractive index, and on light transmition direction, described 3rd euphotic refractive index reduces gradually.
9. optical module according to claim 8, is characterized in that, described 3rd euphotic total number of plies is no less than 10 layers.
10. optical module according to claim 8, is characterized in that, the specific refractivity between adjacent described 3rd photic zone is no more than 0.3.
11. 1 kinds of display device, is characterized in that, comprise the optical module according to any one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600233.XA CN105068177A (en) | 2015-09-18 | 2015-09-18 | Optical assembly and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600233.XA CN105068177A (en) | 2015-09-18 | 2015-09-18 | Optical assembly and display device |
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| CN105068177A true CN105068177A (en) | 2015-11-18 |
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| CN201510600233.XA Pending CN105068177A (en) | 2015-09-18 | 2015-09-18 | Optical assembly and display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106066540A (en) * | 2016-08-17 | 2016-11-02 | 上海理湃光晶技术有限公司 | A kind of elastomeric material covering design of intelligent glasses |
| WO2017118120A1 (en) * | 2016-01-08 | 2017-07-13 | 京东方科技集团股份有限公司 | Light guide plate, backlight module, and liquid crystal display device |
| CN107505794A (en) * | 2017-09-28 | 2017-12-22 | 京东方科技集团股份有限公司 | A kind of display device and backlight |
| CN108227066A (en) * | 2018-01-03 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of light guide plate assembly, backlight and display device |
| CN110272204A (en) * | 2019-06-28 | 2019-09-24 | 京东方科技集团股份有限公司 | Composite decking glass, total reflection display device, selwnite English glass and preparation method |
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
| CN111244218A (en) * | 2018-11-29 | 2020-06-05 | 东泰高科装备科技有限公司 | Solar cell and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110272204A (en) * | 2019-06-28 | 2019-09-24 | 京东方科技集团股份有限公司 | Composite decking glass, total reflection display device, selwnite English glass and preparation method |
| CN110272204B (en) * | 2019-06-28 | 2022-05-10 | 京东方科技集团股份有限公司 | Composite cover plate glass, total reflection display device, chromium-aluminum quartz glass and preparation method |
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
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Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |