CN106772776A - Backlight module and its preparation method - Google Patents
Backlight module and its preparation method Download PDFInfo
- Publication number
- CN106772776A CN106772776A CN201710083096.6A CN201710083096A CN106772776A CN 106772776 A CN106772776 A CN 106772776A CN 201710083096 A CN201710083096 A CN 201710083096A CN 106772776 A CN106772776 A CN 106772776A
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- China
- Prior art keywords
- guide plate
- light guide
- backlight module
- reflectance coating
- light
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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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- 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
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
-
- 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
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- 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)
Abstract
The present invention relates to backlight module and its preparation method, backlight module includes：Light guide plate, one plate face is exiting surface；Reflectance coating, the reflectance coating includes being covered in facial area on the exiting surface, wherein, it is provided with the reflected light grid region for being only capable of transmission-polarizing light in the facial area, the reflecting surface of the reflectance coating is towards the light guide plate.Brightness and the backlight efficiency of backlight module can be improved using the backlight module of this structure.
Description
Technical field
The present invention relates to a kind of lcd technology, more particularly to backlight module and preparation method thereof.
Background technology
Liquid crystal display (LCD) has the advantages that fuselage is thin, low in energy consumption, radiationless, is widely used, for example, move
Mobile phone, digital camera, computer, television screen etc..Liquid crystal display on existing market is most of for backlight liquid
Crystal display, it includes liquid crystal display and backlight module, and liquid crystal panel is oppositely arranged with backlight module, and backlight module is carried for liquid crystal display
For light source.Liquid crystal display shows figure and color by being modulated to the light that backlight module sends.
Fig. 1 shows a kind of existing backlight module.This backlight module is including square backboard 4, in backboard 4
And the glue frame 3, circular by glue frame 3 and the light guide plate in backboard 4 is installed on by glue frame 3 fitted with each madial wall of backboard 4
2, the lamp bar 5 of the one end of light guide plate 2 is arranged on, the diffusion sheet 7 on light guide plate 2 is covered in, and be covered in the reflection on diffusion sheet 7
Type polaroid 8.Black double-sided glue 6 bonds together backlight module and liquid crystal display 1, and edge to backlight module 6 hides
Light.Light-emitting component (not shown) is provided with lamp bar 5.The light that light-emitting component sends incides leaded light from the side of light guide plate 2
In plate 2.These light, by being projected from the exiting surface of light guide plate 2 after one or many reflection, then pass through and expand in light guide plate 2
Discrete piece 7 is atomized.Reflection type polaroid 8 is filtered into polarized light transmission to liquid crystal display 1 to the light that part is atomized again, a part
The light being atomized is reflected to diffusion sheet 7.Glue frame 3, backboard 4, black double-sided glue 6 are non-reflective, directive glue frame 3, backboard 4, black
The light of color double faced adhesive tape 6 is absorbed, and light is largely leaked from there, so results in backlight efficiency low.Backlight efficiency
Liquid crystal display power consumption, lifting use cost can be lowly lifted, portable display cruising time is reduced, is reduced outdoor readable
Property.
The content of the invention
The technical problems to be solved by the invention are how to improve the backlight efficiency of backlight module.
For above-mentioned technical problem, the present invention proposes a kind of backlight module, and it includes：Light guide plate, one plate face is
Exiting surface；Reflectance coating, reflectance coating includes the facial area being covered on the exiting surface, wherein, it is provided with only in the facial area
Can transmission-polarizing light reflected light grid region, the reflecting surface of the reflectance coating is towards the light guide plate.
In a specific embodiment, the reflecting grating area is located at the middle part of exiting surface, and the reflectance coating is covered in
The part at exiting surface edge forms the shading region for shading.
In a specific embodiment, a side of light guide plate is incidence surface, and the reflectance coating also includes covering successively
The multiple side areas covered on each side of the light guide plate except incidence surface.
In a specific embodiment, the light guide plate also includes the back side relative with the exiting surface, the reflection
Film also includes the back panel being covered on the back side.
In a specific embodiment, the reflectance coating includes transparent flexible board and is sequentially laminated on flexible board
Transparent dielectric layer and metallic reflector, the flexible board abuts against with the light guide plate, and the metallic reflector is described anti-
The part penetrated in grating region is arranged to wiregrating.
In a specific embodiment, the scope value in the cycle of the wiregrating is 20~500nm, and its dutycycle is
0.1~0.9.
In a specific embodiment, the material of the transparent dielectric layer include SiO2, SiO, MgO, Si3N4, TiO2,
One or more in Ta2O5.
In a specific embodiment, the material of metallic reflector uses Al, Ag or Au.
The invention allows for a kind of method for making backlight module, comprise the following steps：
S10：Transparent dielectric layer is deposited in a plate face of flexible board；
S20：Metallic reflector is deposited on transparent dielectric layer；
S30：Wiregrating is formed after carrying out patterned process to metallic reflector；
S40：Another plate face of flexible board is connected on light guide plate, and causes that wiregrating is covered in the exiting surface of light guide plate
On.
In a specific embodiment, metallic reflector is carried out at patterning using photoetching process in step s 30
Reason.
Light from the incidence surface incidence light guide plate of light guide plate, reflect by directive reflected light grid region after being reflected through one or many
Grating region is only capable of transmission-polarizing light and reflects other light, and thus these light can be recycled.Using the back of the body of this structure
Light module can greatly improve the utilization rate emitted beam to luminescent device, and then improve brightness and the backlight effect of backlight module
Rate.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 is a kind of complete section schematic diagram of LCDs of the prior art；
Fig. 2 is the complete section schematic diagram of the backlight module in a kind of embodiment of the invention；
Fig. 3 is the schematic top plan view of the backlight module in a kind of embodiment of the invention；
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 2 in the present embodiment, backlight module 10 include light guide plate 11, the reflectance coating 12 of covering light guide plate 11,
The luminescent device 19 of the one end of light guide plate 11 is arranged on, the glue frame 18 of light guide plate 11 and luminescent device 19 is accommodated and is covered in leaded light
The diffusion sheet 17 on the top of plate 11.Luminescent device 19 can be adhered in glue frame 18.Luminescent device 19 switches on power backward light guide plate
11 emit beam.Light is in the light guide plate 11 by once or multilayer refraction and directive diffusion sheet 17, light guide plate being projected in light
Polarised light is filtered into when 11.Diffusion sheet 17 is atomized the polarised light.
Light guide plate 11 is transparency carrier.Light guide plate 11 generally uses rectangular slab.Reflectance coating 12 wraps up light guide plate 11.Reflectance coating
12 reflecting surface is minute surface.The reflecting surface of reflectance coating 12 is towards light guide plate 11.Light guide plate 11 is generally by higher transparent of refractive index
Material is made.The transparent material can be the makrolon or polymethyl methacrylate of optical grade.Light guide plate 11 is substantially square
The platy structure of shape.One plate face of light guide plate 11 is exiting surface 31, and another plate face relative with exiting surface 31 is the back side.Lead
The back side of tabula rasa 11 is provided with intensive reflective site.Reflective site is usually disposed as outwardly salient point array.Light guide plate
11 each side and exiting surface 31 are smooth.One side of light guide plate 11 is incidence surface 32.
As shown in figure 3, reflectance coating 12 is covered on light guide plate 11.Reflectance coating 12 is covered in light guide plate 11 except incidence surface 32
On each face.In the present embodiment, reflectance coating 12 include flexible board 16, the transparent dielectric layer 30 that is covered on flexible board 16 and
It is covered in the metallic reflector 13 on transparent dielectric layer 30.Flexible board 16 is abutted against with light guide plate 11.Flexible board 16 is using transparent
Material is made, for example resin material.Transparent dielectric layer 30 is deposited on flexible board 16.The material of transparent dielectric layer 30 includes
SiO2、SiO、MgO、Si3N4、TiO2、Ta2O5In one or more.Imaginary part of the metallic reflector 13 preferably using refractive index is big
Metal material, for example, using the one kind in Al, Ag, Au.Metallic reflector 13 is deposited on transparent dielectric layer 30.In this reality
Apply in example, the two sides of metallic reflector 13 is reflecting surface, it is only necessary to by therein one facing to light guide plate 11.
Reflectance coating 12 includes facial area 41, back panel 43 and multiple sides area 42.The facial area 41 of reflectance coating 12 is covered
On the exiting surface 31 of light guide plate.Reflected light grid region 14 and shading region 15 are provided with facial area 41.In reflected light grid region 14
Interior metallic reflector 13 is arranged to wiregrating.Wiregrating is arranged side by side and evenly spaced metal wire 20 for a plurality of.The width of metal wire 20
Degree is identical.The slit 21 of hollow out is formed between adjacent two metal line 20.It is preferably to be parallel to each other between many metal lines 20 and sets
Put.Wavelength of the width of slit 21 less than the light that luminescent device 19 sends.The back panel 43 of reflectance coating 12 is covered in light guide plate 11
The back side on.Multiple side areas 42 of reflectance coating 12 are respectively overlay in light guide plate 11 except on each side of incidence surface.Preferably,
Reflectance coating 12 is structure as a whole.
Luminescent device 19 is active light-emitting component.Incidence surface of the luminescent device 19 near light guide plate 11.Luminescent device 19
Light emission direction is towards light guide plate 11.In the present embodiment, luminescent device 19 is provided with multiple, and multiple luminescent devices 19 are along entering light
The bearing of trend in face is arranged successively.The distance between two neighboring luminescent device 19 interval is uniform.Luminescent device 19 is preferably to be sent out
The Light-Emitting Diode of optical diode, more preferably blue light-emitting.
Glue frame 18 is configured to disk-like structure.In the present embodiment, glue frame 18 is configured to square disc shape.Glue frame 18 accommodates light guide plate
11 and luminescent device 19.Luminescent device 19 is preferably mounted on the madial wall of glue frame 18.Luminescent device 19 can be bonded in
In glue frame 18.Glue frame 18 is made using elasticity or flexible material, and cushioning effect is played to external force.Glue frame 18 wraps large area
Reflectance coating 12, is avoided that reflectance coating 12 is scraped off.
Diffusion sheet 17 is covered on the reflectance coating 12 of exiting surface 31.Diffusion sheet 17 can be bonded in reflectance coating 12
On.Diffusion sheet 17 includes a large amount of transparent particles.So, can be reflected when light passes through transparent particle, light beam is repeatedly through thoroughly
Scattered to all directions after bright particulate.It is atomized after light passes through diffusion sheet 17, the light after atomization is softer, it is more equal to be distributed
It is even.
The power supply of luminescent device 19 is connected, the light that luminescent device 19 sends is injected from the incidence surface 32 of light guide plate 11.Hair
The light beam that optical device 19 sends enter into light guide plate 11 after directive reflectance coating 12 and reflective site and reflected to all directions.When
During light directive reflected light grid region 14, due to the slit 21 of wiregrating at this width less than light wavelength, polarization direction perpendicular to
Metal wire 20 TM polarization luminous energy transmit reflected light grid region 14 and enter into diffusion sheet 17 and be atomized, and polarization direction parallel to
The TE polarised lights of metal wire 20 can be then reflected in light guide plate 11 so as to be recycled.Again because light guide plate 11 is by reflectance coating
12 coverings, the light of the back panel 43 of directive reflectance coating 11 can be reflected off and reuse, the side area of directive reflectance coating 11
42 light can be reflected off and reuse, and light is only capable of being revealed from incidence surface 32, thus greatly improves to photophore
The utilization rate that part 19 emits beam, thus, improves brightness and the backlight efficiency of backlight module 10.
Preferably, reflected light grid region 14 is located at the middle part of exiting surface 31, and shading region is provided with around reflected light grid region 14
15.As described in the background art, in the prior art, the edge light leak of liquid crystal display is prevented using black double-sided glue.Black is double
Face glue absorbs light and causes light utilization low.And shading region 15 is provided with around reflected light grid region 14, shading region
The light at the edge of exiting surface 31 can be reflected back in light guide plate 11 and recycled by 15, so both be avoided that liquid crystal display edge light leak
The utilization rate of light is improve again.
Preferably, the scope value in the cycle of wiregrating is 20~500nm, and its dutycycle is 0.1~0.9.The cycle of wiregrating
Refer to the width sum of the width with wall scroll slit 21 of single metal line 20.Dutycycle refers to the width and wall scroll of single metal line 20
The ratio between width of slit 21.So, the transmitted light of the outgoing of reflected light grid region 14 has particularly apparent polarization property.
A kind of method for making above-mentioned backlight module 10 is described below, the method is comprised the following steps：
S10：Transparent dielectric layer 30 is deposited in a plate face of flexible board 16；
Transparent dielectric layer 30 is deposited in a plate face of flexible board 16, the step can be excellent with physical gas-phase deposition
Choosing uses vacuum evaporation process.
S20：Metallic reflector 13 is deposited on transparent dielectric layer 30；
The step can be with physical gas-phase deposition, it is preferred to use vacuum evaporation process or sputter coating process.
S30：Wiregrating is formed after carrying out patterned process to metallic reflector 13；
Patterned process is carried out to metallic reflector 13 using photoetching process in the step.In the present embodiment, first in gold
Coated with nano imprint lithography glue-line on category reflecting layer 13；Then by the metallic mold for nano-imprint imprint lithography glue-line of volume to volume with
Reflected light grid region 14 forms photoresist grating；Etching technics is used to etch metallic reflector 13 to etch wiregrating again；Finally go
Except photoresist.
S40：Another plate face of flexible board 16 is connected on light guide plate 11, and causes that wiregrating is covered in light guide plate 11
In light extraction.
Reflectance coating 12 is folded, flexible board 16 is mutually bonded with light guide plate 11.By the facial area 41 of reflectance coating 12
Alignd with the exiting surface 31 of light guide plate, back panel 43 is alignd with the back panel 43 of light guide plate 11, multiple side areas 42 and light guide plate
Three sides correspondence align.
The making production efficiency of backlight module 10 is high in this way, and step is simple.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of backlight module, it is characterised in that including：
Light guide plate, one plate face is exiting surface；
Reflectance coating, the reflectance coating includes the facial area being covered on the exiting surface,
Wherein, the reflected light grid region for being only capable of transmission-polarizing light, the reflecting surface direction of the reflectance coating are provided with the facial area
The light guide plate.
2. backlight module according to claim 1, it is characterised in that the reflecting grating area is located at the middle part of exiting surface,
The part that the reflectance coating is covered in exiting surface edge forms shading region for shading.
3. backlight module according to claim 1 a, it is characterised in that side of light guide plate is incidence surface,
The reflectance coating also includes being sequentially coated on the light guide plate except the multiple side areas on each side of incidence surface.
4. backlight module according to claim 1, it is characterised in that the light guide plate also includes relative with the exiting surface
The back side,
The reflectance coating also includes the back panel being covered on the back side.
5. backlight module according to any one of claim 1 to 4, it is characterised in that the reflectance coating includes transparent
Flexible board and the transparent dielectric layer and metallic reflector that are sequentially laminated on flexible board,
The flexible board is abutted against with the light guide plate, and part of the metallic reflector in the reflected light grid region is arranged to
Wiregrating.
6. backlight module according to claim 5, it is characterised in that the scope value in the cycle of the wiregrating is 20~
500nm, its dutycycle is 0.1~0.9.
7. backlight module according to claim 5, it is characterised in that the material of the transparent dielectric layer includes SiO2、SiO、
MgO、Si3N4、TiO2、Ta2O5In one or more.
8. backlight module according to claim 5, it is characterised in that the material of metallic reflector uses Al, Ag or Au.
9. a kind of method for making backlight module, comprises the following steps：
S10：Transparent dielectric layer is deposited in a plate face of flexible board；
S20：Metallic reflector is deposited on transparent dielectric layer；
S30：Wiregrating is formed after carrying out patterned process to metallic reflector；
S40：Another plate face of flexible board is connected on light guide plate, and causes that wiregrating is covered on the exiting surface of light guide plate.
10. method according to claim 9, it is characterised in that in step s 30 using photoetching process to metallic reflector
Carry out patterned process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083096.6A CN106772776A (en) | 2017-02-16 | 2017-02-16 | Backlight module and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083096.6A CN106772776A (en) | 2017-02-16 | 2017-02-16 | Backlight module and its preparation method |
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| CN106772776A true CN106772776A (en) | 2017-05-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703672A (en) * | 2017-11-21 | 2018-02-16 | 武汉华星光电技术有限公司 | Array base palte and preparation method thereof, flexible display panels, flexible display |
| CN109917503A (en) * | 2019-03-18 | 2019-06-21 | 京东方科技集团股份有限公司 | A kind of grating device and its manufacturing method, display device |
| CN110399861A (en) * | 2019-08-02 | 2019-11-01 | 京东方科技集团股份有限公司 | A kind of lines sensor, display device |
| CN110955078A (en) * | 2018-09-27 | 2020-04-03 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN114185192A (en) * | 2021-12-09 | 2022-03-15 | 武汉华星光电技术有限公司 | Light-emitting panel and display device |
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