CN106291800B - A kind of light modulation structure of display device, backlight module and display device - Google Patents
A kind of light modulation structure of display device, backlight module and display device Download PDFInfo
- Publication number
- CN106291800B CN106291800B CN201610955132.9A CN201610955132A CN106291800B CN 106291800 B CN106291800 B CN 106291800B CN 201610955132 A CN201610955132 A CN 201610955132A CN 106291800 B CN106291800 B CN 106291800B
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- scattering netted
- netted dot
- light modulation
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000005684 electric field Effects 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 27
- 239000010409 thin film Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008832 photodamage Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- 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
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
- G02F1/0105—Illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Planar Illumination Modules (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides the light modulation structure, backlight module and display device of a kind of display device, belongs to field of display technology, can solve the problems, such as the image display brightness that existing light guide plate is unable to control at local display position.In the light modulation structure of display device of the invention, scattering netted dot in light conducting plate body is mainly made of electroluminescent refractive material, change the electric field of scattering netted dot position by electric control unit so that scattering netted dot changes refractive index, so that the optical characteristics of electroluminescent refraction materials changes, realize light guide plate in total reflection, i.e. light guide plate is without emergent light, so that backlight module is dark-state；Or light is made to reflect simultaneously diffusing reflection from scattering netted dot so that backlight module illuminated state improves image display contrast so as to improve the light modulation of display device different zones local dynamic station.Backlight module of the invention is suitable for various display devices.
Description
Technical field
The invention belongs to field of display technology, and in particular to a kind of light modulation structure of display device, backlight module and display
Device.
Background technique
Existing side entrance back module, as shown in Figure 1, including light guide plate 2 and the light source 1 positioned at 2 side of light guide plate,
In, light source 1 can be point light source or linear light source and be irradiated to after 1 issued light of light source injects 2 inside of light guide plate positioned at light guide plate 2
It is scattered after on scattering netted dot 3 on bottom surface, so that point light source or linear light source are converted to the area source emitted upwards, thus
Uniform backlight is provided for display panel.
At least there are the following problems in the prior art for inventor's discovery: light guide plate 2 in the prior art is generally by acrylic
(i.e. organic glass) material is constituted, and the scattering netted dot 3 of 2 bottom surface of light guide plate is usually by acrylic (i.e. organic glass) material
Main structure on carry out getting processing ready using laser beam and formed, utilize the three-dimensional diffusing reflection principle of 3 high spot of scattering netted dot
Realize above-mentioned dispersion effect.Since 3 position of scattering netted dot being distributed on 2 bottom surface of light guide plate and shape are fixed and invariable,
It cannot achieve and the backlight at local display position is adjusted, it is difficult to effectively promote the comparison of the image display brightness at different location
Degree.
Summary of the invention
Aiming at the problem that present invention is unable to control the image display brightness at local display position existing light guide plate, provide
A kind of light modulation structure of display device, backlight module and display device.
Solving technical solution used by present invention problem is:
A kind of light modulation structure of display device, comprising:
Light guide plate, the light-emitting surface of the light guide plate are the first face, and the face opposite with the first face is the second face；
Set on the light guide plate the second face and to the scattering netted dot of the first face protrusion, the material of the scattering netted dot includes
Electroluminescent refractive material；
Electric control unit, for changing scattering netted dot position electric field so that scattering netted dot change refractive index.
Preferably, the electric control unit includes:
Transparency conducting layer on first face of light guide plate；
Light modulation substrate on second face of light guide plate；
Controller, for controlling voltage between light modulation substrate and transparency conducting layer.
Preferably, the light modulation substrate includes multiple pieces of submount, and the controller includes that signal source and control are each
The thin film transistor (TFT) of submount, the thin film transistor (TFT) include grid, source electrode, drain electrode, the signal source and the grid and institute
Source electrode connection is stated, the drain electrode is connect with the submount.
Preferably, the light guide plate is h, and the electro-optic coefficient of the electroluminescent refractive material is a, and the controller is not
Refractive index when applying voltage is n0, the refractive index after applying voltage V is n；Wherein, V >=h (n-n0)/a。
Wherein, the photoelectric coefficient refer to 1V voltage be applied to material 1mm apart from it is upper when Refractive Index of Material increase value.
Preferably, reflector plate is equipped between the light guide plate and the light modulation substrate.
Preferably, the electroluminescent refractive material includes the copolymerization of methyl methacrylate and glycidyl methacrylate
Object.
The present invention also provides a kind of backlight modules, including above-mentioned light modulation structure and positioned at the light guide plate of the light modulation structure
The light source of side.
Preferably, voltage is 0 between the controller control light modulation substrate and transparency conducting layer, the scattering netted dot folding
Penetrating rate is 1.468, and the light that the light source issues is totally reflected in light guide plate.
Preferably, the scattering netted dot refractive index is greater than 1.5, and the controller control dims substrate and transparency conducting layer
Between voltage V >=0.32h/a, the light that the light source issues reflects at scattering netted dot, and after reflector plate diffusing reflection by
It projects in the first face.
Preferably, the distribution of the scattering netted dot far from light source is less than by the distribution density of the scattering netted dot of close to sources
Density；And/or
The spherical protrusion of protrusion, and be less than by the spherical surface hill diameter of the scattering netted dot of close to sources far from light source
Scattering netted dot spherical surface hill diameter.
The present invention also provides a kind of display devices, including above-mentioned backlight module.
In the light modulation structure of display device of the invention, the scattering netted dot in light conducting plate body is mainly by electroluminescent refraction
Material constitute, by electric control unit change scattering netted dot position electric field so that scattering netted dot change refractive index,
So that the optical characteristics of electroluminescent refraction materials changes, realize light guide plate in total reflection, i.e. light guide plate without emergent light,
So that backlight module is dark-state；Or light is made to reflect simultaneously diffusing reflection from scattering netted dot so that backlight module is bright
State improves image display contrast so as to improve the light modulation of display device different zones local dynamic station.Backlight module of the invention is suitable
For various display devices.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing side entrance back module；
Fig. 2 is the light modulation structure schematic diagram of the display device of the embodiment of the present invention 1；
Fig. 3 is the light modulation structure schematic diagram of the display device of the embodiment of the present invention 2；
Fig. 4, Fig. 5 are the partial schematic diagram of the light modulation structure of the embodiment of the present invention 2；
Fig. 6-8 is the light propagation path schematic diagram of the backlight module of the embodiment of the present invention 3；
Wherein, appended drawing reference are as follows: 1, light source；2, light guide plate；3, scattering netted dot；4, electric control unit；41, electrically conducting transparent
Layer；42, substrate is dimmed；43, controller；44, submount；45, thin film transistor (TFT)；G, grid；S, source electrode；D, it drains；5, it reflects
Piece.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
The present embodiment provides a kind of light modulation structures of display device, as shown in Figure 2, comprising: light guide plate 2, light guide plate 2 go out
Smooth surface is the first face, and the face opposite with the first face is the second face；The second face set on light guide plate 2 and scattering to the first face protrusion
Site 3, the material of scattering netted dot 3 include electroluminescent refractive material；Electric control unit 4, for changing 3 position of scattering netted dot
The electric field at place is so that scattering netted dot 3 changes refractive index.
The light modulation structure of the present embodiment by electric control unit 4 change 3 position of scattering netted dot electric field so that
Scattering netted dot 3 changes refractive index, so that the optical characteristics of electroluminescent refraction materials changes, realizes light guide plate 2 in complete
Reflection, i.e. light guide plate 2 are without emergent light, so that backlight module is dark-state；Or light is reflected simultaneously from scattering netted dot 3
Diffusing reflection is so that backlight module illuminated state, the bright dark comparison shown so as to improve the image at display device difference display position
Degree.Backlight module of the invention is suitable for various display devices.
Embodiment 2:
The present embodiment provides a kind of light modulation structures of display device, as shown in Figure 3, comprising: light guide plate 2；Set on light guide plate 2
The second face and to the scattering netted dot 3 of the first face protrusion, the material of scattering netted dot 3 includes electroluminescent refractive material；And for changing
Become the electric control unit 4 of the electric field of 3 position of scattering netted dot, wherein electric control unit 4 includes: set on light guide plate 2
Transparency conducting layer 41 on first face；Light modulation substrate 42 on 2 second face of light guide plate；Controller 43, for controlling light modulation
Voltage between substrate 42 and transparency conducting layer 41.
Wherein, transparency conducting layer 41 and light modulation substrate 42 are correspondingly arranged on the upper and lower surfaces of light guide plate 2, electrically conducting transparent
The light-emitting surface of light guide plate 2 is arranged in layer 41, and the another side of light guide plate 2 is arranged in light modulation substrate 42.Light guide plate 2 can be by optical grade
Polymethyl methacrylate (PMMA) or polycarbonate (PC) material constitute, specifically, can be first on 2 second face of light guide plate
The structure of indent is formed, then the material of scattering netted dot 3 is packed into the structure of above-mentioned indent to be formed to the first face protrusion
Scattering netted dot 3.Transparency conducting layer 41 is made of the transparent material of transmissivity height and good conductivity, such as tin indium oxide (ITO) etc.,
Conductive layer transparent in this way will not influence beam projecting.Specifically, transparency conducting layer 41 can be whole, with display device face
Product is identical, can also use the transparency conducting layer of multiple small areas being correspondingly arranged respectively with the subsequent each submount 44 mentioned
41。
Preferably, light modulation substrate 42 includes multiple pieces of submount 44, and controller 43 includes signal source and the every height of control
The thin film transistor (TFT) 45 of substrate 44, thin film transistor (TFT) 45 include grid, source electrode, drain electrode, and signal source is connect with grid and source electrode, are leaked
Pole is connect with submount 44.
It should be noted that as shown in Figure 4, Figure 5, light modulation substrate 42 can be the shape of 44 array arrangement of muti-piece submount
Formula, the effect designed in this way is: when the light modulation structure is used for display device, convenient for the bright of control display device local dimming
Secretly, specifically, the grid G of thin film transistor (TFT) 45 and source S connecting signal source, drain D are connect with submount 44, control independent in this way
Local dimming can be realized in the voltage of system substrate 44.It is understood that a thin film transistor (TFT) 45 can control a son
Substrate 44 also can control two or more submount 44.It can be convenient in this way, be accurately controlled display device difference display position
Set the bright dark contrast that the image at place is shown.
Preferably, reflector plate 5 is equipped between light guide plate 2 and light modulation substrate 42.
That is, reflector plate 5 is arranged outside the second face of light guide plate 2 to reduce the light damage at the second face (i.e. back)
It loses.
Preferably, light guide plate 2 is a, 43 no applied voltage of controller with a thickness of h, the electro-optic coefficient of electroluminescent refractive material
When refractive index be n0, the refractive index after applying voltage V is n；Wherein, V >=h (n-n0)/a。
Wherein, photoelectric coefficient refer to 1V voltage be applied to material 1mm apart from it is upper when Refractive Index of Material increase value.When above-mentioned
Parameter meets V >=h (n-n0When)/a, it can be ensured that change the electric field of 3 position of scattering netted dot so that scattering netted dot 3 changes
Refractive index.The voltage for controlling the light modulation substrate 42 at different location in this way, that is, can be improved at display device difference display position
The bright dark contrast that image is shown, it is simply, conveniently, easily operated.
Embodiment 3:
The present embodiment provides a kind of backlight modules, including above-mentioned light modulation structure and positioned at 2 side of light guide plate of light modulation structure
The light source 1 on side.
Preferably, voltage is 0 between the control of controller 43 light modulation substrate 42 and transparency conducting layer 41,3 folding of scattering netted dot
Penetrating rate is 1.468, and the light that light source 1 issues is totally reflected in light guide plate 2.
Preferably, reflector plate 5 is equipped between light guide plate 2 and light modulation substrate 42；3 refractive index of scattering netted dot is greater than 1.5, control
Voltage V >=0.32h/a between the control of device 43 light modulation substrate 42 and transparency conducting layer 41 processed, the light that light source 1 issues is in scattering netted dot 3
Place reflects, and is projected after 5 diffusing reflection of reflector plate by the first face.
A specific embodiment is provided herein:
Using the light guide plate 2 that with a thickness of 0.8mm, refractive index is 1.468.Scattering netted dot 3 includes first by electroluminescent refractive material
Base methyl acrylate and the copolymer (P (MMA-GMA)) of glycidyl methacrylate are constituted, when scattering netted dot 3 is not powered on
Refractive index be 1.468, photoelectric coefficient be 0.001 (i.e. 1V voltage be applied to 1mm distance make refractive index increase 0.001).
When scattering netted dot 3 is not in electric field, as shown in fig. 6, controller 43a, b, c, d are in off-state, back
Light is totally reflected in light guide plate 2, and no backlight illumination is into display panel.When needing to destroy the total reflection in light guide plate 2,
Need to increase to 3 refractive index of scattering netted dot 1.5 or bigger, light guide plate 2 used applies in the present embodiment with a thickness of 0.8mm
3 refractive index of scattering netted dot increases 0.00125 when 1V voltage, needs to be applied more than at this time equal to 25.6V voltage, so that it may such as Fig. 7
Shown, controller 43a, b, c, d are in closed state, it is ensured that total reflection is destroyed and backlight is made to be emitted to bottom reflection piece 5
On, to be reflected into display panel.Specifically, can be as shown in figure 8, controller 43a, c be in closed state, controller
43b, d are in an off state, and are controlled bright dark at display device different location.It should be noted that the scattering in the present embodiment
The electroluminescent refraction materials that site 3 can also use photoelectric coefficient bigger, the voltage applied in this way can be smaller.It can also make to lead
Tabula rasa 2 is thinner, can also make the voltage applied is smaller to can be obtained by identical electric field strength in this way.
Preferably, the distribution of the scattering netted dot 3 far from light source 1 is less than by the distribution density of the scattering netted dot 3 of close to sources 1
Density；And/or
The spherical protrusion of protrusion, and it is less than dissipating far from light source 1 by the spherical surface hill diameter of the scattering netted dot 3 of close to sources 1
Penetrate the spherical surface hill diameter of site 3.
That is, 3 shape of scattering netted dot is dome shape, the closer 3 spherical diameter spherical diameter of scattering netted dot away from light source 1
Smaller, bigger away from remoter 3 spherical diameter of scattering netted dot of light source 1, specific size is depending on actual conditions.It is dredged by various
Scattering netted dot 3 close, not of uniform size, can make light guide plate 2 under conditions of applying identical voltage light uniform to bottom reflection
Piece 5.
Embodiment 4:
Present embodiments provide a kind of display device comprising any one of the above backlight module.The display device can
With are as follows: liquid crystal display panel, Electronic Paper, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigation
Any products or components having a display function such as instrument.
Obviously, also many modifications may be made to for the specific embodiment of the various embodiments described above；Such as: the specific shape of scattering netted dot
Shape can be according to circumstances changed, and the density degree of adjacent scattering netted dot can be adjusted according to specific product.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of light modulation structure of display device characterized by comprising
Light guide plate, the light-emitting surface of the light guide plate are the first face, and the face opposite with the first face is the second face；
Set on the light guide plate the second face and to the scattering netted dot of the first face protrusion, the material of the scattering netted dot includes electroluminescent
Refractive material；
Electric control unit, for changing scattering netted dot position electric field so that scattering netted dot change refractive index；
The electric control unit includes:
Transparency conducting layer on first face of light guide plate；
Light modulation substrate on second face of light guide plate；
Controller, for controlling voltage between light modulation substrate and transparency conducting layer.
2. light modulation structure according to claim 1, which is characterized in that the light modulation substrate includes multiple pieces of submount, institute
Stating controller includes signal source and the thin film transistor (TFT) for controlling each submount, and the thin film transistor (TFT) includes grid, source electrode, leakage
Pole, the signal source are connect with the grid and the source electrode, and the drain electrode is connect with the submount.
3. light modulation structure according to claim 1, which is characterized in that the light guide plate is h, the electroluminescent refraction material
The electro-optic coefficient of material is a, and the refractive index when controller no applied voltage is n0, and the refractive index after applying voltage V is n；Its
In, V >=h (n-n0)/a.
4. light modulation structure according to claim 3, which is characterized in that be equipped between the light guide plate and the light modulation substrate
Reflector plate.
5. a kind of backlight module, which is characterized in that including the described in any item light modulation structures of claim 1-4 and be located at the tune
The light source of the light guide plate side of photo structure.
6. backlight module according to claim 5, which is characterized in that the controller control light modulation substrate and electrically conducting transparent
Voltage is 0 between layer, and the scattering netted dot refractive index is 1.468, and the light that the light source issues is totally reflected in light guide plate.
7. backlight module according to claim 6, which is characterized in that the light modulation structure is tune described in claim 5
Photo structure；The scattering netted dot refractive index is greater than 1.5, voltage V between the controller control light modulation substrate and transparency conducting layer
>=0.32h/a, the light that the light source issues reflects at scattering netted dot, and is penetrated after reflector plate diffusing reflection by the first face
Out.
8. backlight module according to claim 5, which is characterized in that by the distribution density of the scattering netted dot of close to sources
Less than the distribution density of the scattering netted dot far from light source；And/or
The spherical protrusion of protrusion, and it is less than dissipating far from light source by the spherical surface hill diameter of the scattering netted dot of close to sources
Penetrate the spherical surface hill diameter of site.
9. a kind of display device, which is characterized in that including the described in any item backlight modules of claim 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955132.9A CN106291800B (en) | 2016-10-27 | 2016-10-27 | A kind of light modulation structure of display device, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955132.9A CN106291800B (en) | 2016-10-27 | 2016-10-27 | A kind of light modulation structure of display device, backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106291800A CN106291800A (en) | 2017-01-04 |
| CN106291800B true CN106291800B (en) | 2019-05-10 |
Family
ID=57720479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610955132.9A Expired - Fee Related CN106291800B (en) | 2016-10-27 | 2016-10-27 | A kind of light modulation structure of display device, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106291800B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671421A (en) * | 2017-11-20 | 2018-02-09 | 苏州川普光电有限公司 | A kind of laser processing technology of light guide plate mesh point |
| CN110133790B (en) * | 2018-02-02 | 2020-07-31 | 福州京东方光电科技有限公司 | Backlight module, control method and wearable device |
| CN110264910A (en) * | 2019-07-03 | 2019-09-20 | 东莞市钜欣电子有限公司 | A kind of light-emitting indicating sign board |
| CN115424538B (en) * | 2022-09-09 | 2024-04-09 | 惠科股份有限公司 | Display device and method for manufacturing the same |
| CN115980909B (en) * | 2023-03-22 | 2023-07-18 | 惠科股份有限公司 | Light emitting component and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941472A (en) * | 2014-01-06 | 2014-07-23 | 友达光电股份有限公司 | Display device |
| CN104020596A (en) * | 2013-03-01 | 2014-09-03 | 黄瑜贞 | Multifunctional electronic window and manufacturing method thereof |
| CN104898197A (en) * | 2015-04-29 | 2015-09-09 | 京东方科技集团股份有限公司 | Light guide plate, preparation method thereof, backlight module and display device |
| CN106019716A (en) * | 2016-07-28 | 2016-10-12 | 京东方科技集团股份有限公司 | Backlight source and driving method and display device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW594119B (en) * | 2001-12-21 | 2004-06-21 | Au Optronics Corp | Backlight module for thin film transistor liquid crystal display |
-
2016
- 2016-10-27 CN CN201610955132.9A patent/CN106291800B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020596A (en) * | 2013-03-01 | 2014-09-03 | 黄瑜贞 | Multifunctional electronic window and manufacturing method thereof |
| CN103941472A (en) * | 2014-01-06 | 2014-07-23 | 友达光电股份有限公司 | Display device |
| CN104898197A (en) * | 2015-04-29 | 2015-09-09 | 京东方科技集团股份有限公司 | Light guide plate, preparation method thereof, backlight module and display device |
| CN106019716A (en) * | 2016-07-28 | 2016-10-12 | 京东方科技集团股份有限公司 | Backlight source and driving method and display device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106291800A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106291800B (en) | A kind of light modulation structure of display device, backlight module and display device | |
| CN107505769B (en) | Backlight structure and display device | |
| JP6272621B2 (en) | Method and apparatus for front illuminated semi-retroreflective display | |
| CN108764098B (en) | Display panel and display device | |
| CN110501833B (en) | Display device | |
| CN105911737B (en) | Backlight source, display device and control method thereof | |
| TW200935143A (en) | Display device and optical device | |
| CN112417933A (en) | Backlight module and electronic equipment | |
| CN108919586B (en) | Display panel and display device | |
| KR102016517B1 (en) | Backlight unit and display device including the same | |
| CN104049406A (en) | Liquid crystal display device and electronic apparatus | |
| US20190011628A1 (en) | Backlight unit and display device including the same | |
| US20120242623A1 (en) | Touch sensitive device and display device employing the same | |
| CN103675987A (en) | Light guide plate, backlight module and display device | |
| KR20200001867A (en) | Optical film for mini led or micro led backlight unit | |
| KR101589443B1 (en) | Complex optical film and, light source assembly including the same | |
| TWI706199B (en) | Display panel and electronic device using the same | |
| US9470834B2 (en) | Light guide plate and manufacturing method thereof | |
| US20120230055A1 (en) | Front light illumination device and reflective display device employing the same | |
| CN102279498A (en) | Front light lighting device and reflection type display device using same | |
| US10267974B2 (en) | Light guide plate, backlight and display device | |
| CN205405002U (en) | Changeable peep -proof display device and backlight | |
| CN114637143B (en) | Display device and electronic apparatus | |
| KR102048080B1 (en) | Crystal backlight unit | |
| US9817171B2 (en) | Light guide plat and backlight module having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 |