CN113805381A - Backlight structure, display module and display screen - Google Patents
Backlight structure, display module and display screen Download PDFInfo
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- CN113805381A CN113805381A CN202110895944.XA CN202110895944A CN113805381A CN 113805381 A CN113805381 A CN 113805381A CN 202110895944 A CN202110895944 A CN 202110895944A CN 113805381 A CN113805381 A CN 113805381A
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- ink layer
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- lower substrate
- backlight structure
- substrate
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- 239000000758 substrate Substances 0.000 claims abstract description 85
- 239000010410 layer Substances 0.000 claims abstract description 72
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 32
- 239000002346 layers by function Substances 0.000 claims abstract description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 16
- 238000005282 brightening Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000009792 diffusion process Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 5
- 239000007888 film coating Substances 0.000 claims description 4
- 238000009501 film coating Methods 0.000 claims description 4
- 238000010023 transfer printing Methods 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000007639 printing Methods 0.000 description 4
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 3
- 238000003486 chemical etching Methods 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000010329 laser etching Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
Images
Classifications
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
- G02F1/133507—Films for enhancing the luminance
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
Abstract
The invention discloses a backlight structure, a display module and a display screen, wherein the backlight structure is integrated in an LCD display panel, the LCD display panel comprises an upper polaroid, a lower polaroid and a liquid crystal box positioned between the upper polaroid and the lower polaroid, the liquid crystal box comprises an upper substrate, a lower substrate, a sealing rubber frame positioned between the upper substrate and the lower substrate and a liquid crystal layer, an upper substrate functional layer is manufactured on the lower surface of the upper substrate, and a brightening ink layer, a light scattering ink layer and a lower substrate functional layer are sequentially stacked on the upper surface of the lower substrate; the backlight structure is formed by the light scattering ink layer, the light intensifying ink layer, the lower substrate and the lower polarizer, the functions of the backlight light guide plate and the reflecting plate are realized by the lower substrate and the lower polarizer of the LCD display panel, the light intensifying ink layer is used for replacing the light intensifying film to realize the light intensifying function, and the light scattering ink layer is used for replacing the light scattering film to realize the light homogenizing function, so that the material and process cost are greatly saved, and the market competitiveness of the product is improved.
Description
Technical Field
The invention belongs to the technical field of liquid crystal display, and particularly relates to a backlight structure, a display module and a display screen.
Background
In the current display module industry, competition among manufacturers is more and more intense, product competition is not the quality and price of the product, the price of the product depends on the market supply and demand relationship and the manufacturing cost of the product, and under the condition of the intense market competition, the manufacturing cost of the product is crucial to the market competition of the product. The manufacturing cost of the product depends on the material cost, the process cost, the labor cost, the equipment depreciation cost and the like of the product, the most important cost is the material cost and the process cost, the current LCD display screen is matched with a backlight module, the backlight module generally comprises a light source and a backlight structure, and the backlight structure mainly comprises a reflecting plate, a light guide plate, a brightness enhancement film and a diffusion film. The LCD display panel and the backlight module need to be manufactured separately for the current display screen and then combined, so that the manufacturing process is complex, the used materials are more, and the manufacturing cost is difficult to reduce under the current structural condition.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a backlight structure, a display module and a display screen which integrate the backlight structure on an LCD display panel.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a backlight structure is integrated in an LCD display panel, the LCD display panel comprises an upper polaroid, a lower polaroid and a liquid crystal box positioned between the upper polaroid and the lower polaroid, the liquid crystal box comprises an upper substrate, a lower substrate, a sealing rubber frame and a liquid crystal layer, the sealing rubber frame and the liquid crystal layer are positioned between the upper substrate and the lower substrate, an upper substrate functional layer is manufactured on the lower surface of the upper substrate, and a light intensifying ink layer, a light scattering ink layer and a lower substrate functional layer are sequentially stacked on the upper surface of the lower substrate; the light scattering ink layer, the light intensifying ink layer, the lower substrate and the lower polarizer form a backlight structure, the light scattering ink layer replaces a diffusion film to achieve a function of light uniform diffusion, the light intensifying ink layer replaces a light intensifying film to achieve a function of light concentrated in a certain range to be emitted, the lower substrate replaces a light guide plate to achieve a function of converting a light source into a surface light source, and the lower polarizer replaces a reflecting plate to achieve a function of light reflection.
Furthermore, the stack order of the brightening ink layer, the light scattering ink layer and the lower substrate functional layer on the upper surface of the lower substrate is from bottom to top, and the brightening ink layer, the light scattering ink layer and the lower substrate functional layer, or the brightening ink layer, the lower substrate functional layer and the light scattering ink layer, or the lower substrate functional layer, the brightening ink layer and the light scattering ink layer are sequentially arranged on the stack order.
Furthermore, the upper substrate is made of glass, and the lower substrate is made of glass or a transparent material with certain hardness.
Furthermore, a plurality of diffuse reflection points are arranged on the lower surface of the lower substrate and are uniformly arranged, and the diffuse reflection points are formed by subsequent etching.
Furthermore, the thickness of the brightening ink layer is less than 10 microns, and the manufacturing process can be any one of film coating, silk-screen printing, stamping and transfer printing.
Furthermore, the thickness of the light scattering ink layer is less than 10 μm, and the manufacturing process can be any one of film coating, silk screen printing, stamping and transfer printing.
Preferably, the sealant frame material is epoxy glue.
Preferably, the backlight structure is an edge-light type backlight structure, and the light source is an LED backlight source.
A display module adopts a backlight structure of any one of the above technical schemes.
A display screen adopts a backlight structure or the display module set of any one of the above technical schemes.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the invention integrates the backlight structure and the LCD display panel structure together, realizes the functions of the light guide plate and the reflecting plate of the backlight by utilizing the lower substrate and the lower polarizer of the LCD display panel, and stacks the intensifying ink layer on the upper surface of the lower substrate to replace the intensifying film to realize the intensifying function, and stacks the dispersing ink layer to replace the dispersing film to realize the light equalizing function.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural view of example 2 of the present invention;
FIG. 3 is a schematic structural diagram of example 3 of the present invention;
wherein: 1. the backlight module comprises an upper polarizer, 2, an upper substrate, 3, an upper substrate functional layer, 4, a liquid crystal layer, 5, a lower substrate functional layer, 6, a light scattering ink layer, 7, a light intensifying ink layer, 8, a lower substrate, 9, a lower polarizer, 10, diffuse reflection points, 11, a sealing rubber frame, 100 and a backlight structure.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
the invention relates to a backlight structure for a display module and a display screen, which redesigns the backlight structure, adjusts the manufacturing process, integrates the backlight structure and an LCD display panel together to form a whole, and simultaneously performs the manufacturing of the backlight in the manufacturing process of the LCD display panel. The backlight structure is integrated on the lower substrate of the LCD display panel, the structure of the lower substrate is redesigned to replace the existing light guide plate structure, the function of a light guide plate is realized, the lower polarizer of the LCD display panel is utilized to realize the light intensifying function of the emission plate, the light intensifying film and the diffusion film of the backlight structure are manufactured on the upper surface of the lower substrate and are replaced by the ink layers with corresponding functions, the backlight structure and the display module which are redesigned and optimized can greatly save materials, reduce process procedures, further reduce manufacturing cost and improve the market competitiveness of products.
Example 1
As shown in fig. 1, the backlight structure according to this embodiment is integrated in an LCD display panel, where the LCD display panel includes an upper polarizer 1, a lower polarizer 9, and a liquid crystal cell located between the upper polarizer and the lower polarizer, the liquid crystal cell includes an upper substrate 2, a lower substrate 8, a sealant frame 11 located between the upper substrate and the lower substrate, and a liquid crystal layer 4, the lower surface of the upper substrate is provided with an upper substrate functional layer 3, and the upper surface of the lower substrate is sequentially stacked from bottom to top with a brightening ink layer 7, a light scattering ink layer 6, and a lower substrate functional layer 5; the invention integrates the intensifying ink layer 7 and the light scattering ink layer 6 which form the backlight structure into the liquid crystal box, and replaces the intensifying ink layer and the light scattering ink layer with the ink layers with corresponding functions, thereby optimizing the materials and the manufacturing process. For the invention, the light scattering ink layer, the light intensifying ink layer, the lower substrate and the lower polarizer form the backlight structure 100, the light scattering ink layer replaces the diffusion film in the prior art to realize the function of the diffusion film, and the specific steps are as follows: realize the even diffusion of light to can shield the function of some defects on diffuse reflection pattern and the surface of being shaded on the light guide plate, the membrane that adds lustre to of prior art is replaced to the layer of printing ink that adds lustre to, realizes the function of membrane that adds lustre to, specifically is: the scattered light emitted by the light source is gathered towards the front direction and emitted within a certain range, so that the brightness is improved. The infrabasal plate replaces the light guide plate of prior art, realizes the light guide plate function, specifically is: and converting the linear light source into a surface light source. The lower polarizer adopts a reflection-type polarizer to replace a reflecting plate in the prior art, so that the function of the reflecting plate is realized, and the method specifically comprises the following steps: the light guide plate is used for reflecting the light exposed from the bottom surface of the light guide plate back to the light guide plate, so that the light reflection function is realized, and the use efficiency of the light is improved.
Generally, glass substrates are used as the upper substrate and the lower substrate of the LCD panel, but for this embodiment, the upper substrate is made of glass, and the lower substrate is made of glass or a transparent material with a certain hardness. The lower substrate of this embodiment preferably adopts PMMA material, a plurality of diffuse reflection dots 10 are disposed on the lower surface of the lower substrate, the diffuse reflection dots are uniformly distributed, and the diffuse reflection dots can be manufactured in the following manner: 1. printing diffuse reflection points on the lower surface of the lower substrate in a printing mode, 2, etching the diffuse reflection points on the lower surface of the lower substrate in a chemical etching mode, 3, etching the diffuse reflection points on the lower surface of the lower substrate in a laser etching mode, and 4, etching the diffuse reflection points on the lower surface of the lower substrate in a photolithography method. Chemical etching or laser etching is used for the present embodiment.
For this embodiment, the thickness of the brightening ink layer is less than 10 μm, the thickness of the light scattering ink layer is less than 10 μm, and the manufacturing process may adopt processes such as plating, screen printing, stamping, pad printing, and the like. The sealant frame material is epoxy glue, the backlight structure is a side-light type backlight structure, the light source can be an LED, a fluorescent tube and the like, and an LED backlight source is preferably used in the embodiment.
Based on the above technical scheme, this embodiment still provides a display module assembly, adopts above-mentioned technical scheme backlight structure.
The embodiment also provides a display screen, and the backlight structure or the display module adopting the above scheme is adopted.
Example 2
This example differs from example 1 in that: the lower substrate of the backlight structure is made of a glass material, a plurality of diffuse reflection points are arranged on the lower surface of the lower substrate and are uniformly distributed, and the diffuse reflection points are printed on the lower surface of the lower substrate in a printing mode. As shown in fig. 2, in the embodiment, the light increasing ink layer, the light scattering ink layer, and the lower substrate functional layer are sequentially formed on the upper surface of the lower substrate from bottom to top by the stacking order of the light increasing ink layer, the lower substrate functional layer, and the light scattering ink layer, or the lower substrate functional layer, the light increasing ink layer, and the light scattering ink layer.
Example 3
As shown in fig. 3, the present embodiment is different from embodiment 2 in that: in this embodiment, the light-enhancing ink layer, the light-scattering ink layer and the lower substrate functional layer are sequentially formed on the lower substrate functional layer, the light-enhancing ink layer and the light-scattering ink layer from bottom to top in the stacking order of the upper surface of the lower substrate.
Claims (10)
1. A backlight structure, characterized by: the backlight structure is integrated in an LCD display panel, the LCD display panel comprises an upper polaroid, a lower polaroid and a liquid crystal box positioned between the upper polaroid and the lower polaroid, the liquid crystal box comprises an upper substrate, a lower substrate, a sealant frame and a liquid crystal layer, the sealant frame is positioned between the upper substrate and the lower substrate, an upper substrate functional layer is manufactured on the lower surface of the upper substrate, and a brightening ink layer, a light scattering ink layer and a lower substrate functional layer are manufactured on the upper surface of the lower substrate; the light scattering ink layer, the light intensifying ink layer, the lower substrate and the lower polarizer form a backlight structure, the light scattering ink layer replaces a diffusion film to achieve a function of light uniform diffusion, the light intensifying ink layer replaces a light intensifying film to achieve a function of light concentrated in a certain range to be emitted, the lower substrate replaces a light guide plate to achieve a function of converting a light source into a surface light source, and the lower polarizer replaces a reflecting plate to achieve a function of light reflection.
2. The backlight structure according to claim 1, wherein: the stack order of the brightening ink layer, the light scattering ink layer and the lower substrate functional layer on the upper surface of the lower substrate is sequentially the brightening ink layer, the light scattering ink layer and the lower substrate functional layer from bottom to top, or the brightening ink layer, the lower substrate functional layer and the light scattering ink layer, or the lower substrate functional layer, the brightening ink layer and the light scattering ink layer.
3. A backlight structure according to claim 2, characterized in that: the upper substrate is made of glass, and the lower substrate is made of glass or a transparent material with certain hardness.
4. A backlight structure according to claim 3, characterized in that: the lower surface of the lower substrate is provided with a plurality of diffuse reflection points which are uniformly arranged, and the diffuse reflection points are formed by subsequent etching.
5. A backlight structure according to any one of claims 1-4, characterized in that: the thickness of the brightening ink layer is less than 10 mu m, and the manufacturing process can be any one of film coating, silk-screen printing, stamping and transfer printing.
6. The backlight structure according to claim 5, wherein: the thickness of the light scattering ink layer is less than 10 mu m, and the manufacturing process can be any one of film coating, silk screen printing, stamping and transfer printing.
7. The backlight structure according to claim 6, wherein: the sealant frame is made of epoxy glue.
8. The backlight structure according to claim 7, wherein: the backlight structure is a side-light type backlight structure, and the light source is an LED backlight source.
9. The utility model provides a display module assembly which characterized in that: comprising a backlight structure as claimed in claims 1-8.
10. A display screen, its characterized in that: comprising a backlight structure as claimed in claims 1 to 8 or a display module as claimed in claim 9.
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CN202110895944.XA CN113805381A (en) | 2021-08-05 | 2021-08-05 | Backlight structure, display module and display screen |
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CN202110895944.XA CN113805381A (en) | 2021-08-05 | 2021-08-05 | Backlight structure, display module and display screen |
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CN112180497A (en) * | 2020-10-28 | 2021-01-05 | 东莞市银泰丰光学科技有限公司 | Glass light guide plate and glass diffusion plate fuse structure in a poor light |
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Application publication date: 20211217 |