CN114397783A - Ultrathin Mini-LED backlight source with uniform light emission - Google Patents
Ultrathin Mini-LED backlight source with uniform light emission Download PDFInfo
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- CN114397783A CN114397783A CN202210249713.6A CN202210249713A CN114397783A CN 114397783 A CN114397783 A CN 114397783A CN 202210249713 A CN202210249713 A CN 202210249713A CN 114397783 A CN114397783 A CN 114397783A
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- 239000000758 substrate Substances 0.000 claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 8
- 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 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 239000003086 colorant Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 description 11
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- 238000009826 distribution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
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- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- B08B1/12—
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- B08B1/165—
-
- B08B1/30—
-
- 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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02F1/133613—Direct backlight characterized by the sequence of light sources
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses an ultrathin Mini-LED backlight source with uniform light emission, which comprises a substrate, wherein the substrate is an FPC (flexible printed circuit) board or a PCB (printed circuit board), rubber frames are fixedly arranged on the periphery of the upper end of the substrate, a plurality of groups of LED chips are uniformly arranged on the upper surface of the substrate, a layer of protective rubber is coated on the outer sides of the LED chips, a protective film is arranged at the upper end of the protective rubber, a composite film is arranged above the protective film, a brightness enhancement film is arranged at the upper end of the composite film, and the edge of the brightness enhancement film is connected with the rubber frames through light shielding rubber; according to the LED backlight source, the LED chips with different colors in the horizontal direction and the vertical direction are distributed in a staggered mode, and the chips of the same type are not adjacent in the same row and column, so that the light sources with different colors can be uniformly distributed, the emitted light is relatively uniformly mixed, the overall light emitting effect of the backlight source is improved, and the attractiveness of the light sources is ensured.
Description
Technical Field
The invention relates to the technical field of LED backlight sources, in particular to an ultrathin Mini-LED backlight source with uniform light emission.
Background
At present, the application permeability of the LED as a backlight source in the field of liquid crystal panel display already exceeds 90%. The backlight module mainly comprises an edge-in type LED backlight and a direct-down type LED backlight, wherein an LED light source is arranged on the side face of the light guide plate, light emitted by the LED enters the light guide plate through coupling, and is guided out through reflection and scattering of the reflector plate and the mesh points. The direct-type LED backlight is becoming the mainstream of the market because it can display images more accurately and exhibit excellent color and contrast effect.
The direct type LED backlight source module generally comprises a PCB, a plurality of packaged LED chips are arranged on the PCB, and light rays emitted by the LED chips irradiate onto an LCD display screen, so that the liquid crystal display device is illuminated.
The light distribution of the existing LED backlight source is uneven, and the integral luminous effect and the attractiveness are influenced.
Disclosure of Invention
The invention aims to provide an ultrathin Mini-LED backlight source with uniform light emission, wherein LED chips with different colors in the horizontal and vertical directions are distributed in a staggered manner, and the chips of the same type are not adjacent in the same row and column, so that the uniform distribution of light sources with different colors can be ensured, the emitted light is relatively uniformly mixed, the overall light emission effect of the backlight source is improved, and the attractiveness of the light sources is ensured.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a luminous even ultra-thin Mini-LED backlight, includes the base plate, the base plate adopts FPC board or PCB board, and the upper end of base plate all is fixed all around and is provided with gluey frame, and a plurality of groups LED chip are evenly installed to the upper surface of base plate, and the cladding of the LED chip outside has the one deck protection to glue, and the upper end that the protection was glued is provided with the protection film, and the top of protection film is provided with the one deck complex film, and the upper end of complex film is provided with the piece of adding lustre to, and the piece edge of adding lustre to links to each other with gluey frame through shading glue.
As a further scheme of the invention: the LED chips are distributed on the substrate in a rectangular array, the LED chips adjacent to each other in the horizontal direction are distributed in a vertically staggered mode, and the LED chips adjacent to each other in the vertical direction are distributed in a left-right staggered mode.
As a further scheme of the invention: and a protective pad is arranged between the rubber frame and the substrate.
As a further scheme of the invention: the protective film is of a three-layer film structure and is respectively a first structural film at the bottom, a second structural film in the middle and a third structural film at the upper part.
As a further scheme of the invention: the composite film is a composite structure film made of BLT and QD materials.
As a further scheme of the invention: and mounting parts for detachably mounting the substrate are symmetrically arranged on two sides of the bottom of the substrate.
As a further scheme of the invention: the bottom of the substrate is uniformly provided with a plurality of supporting pads for protecting the substrate.
As a further scheme of the invention: the mounting part comprises a support fixedly arranged at the bottom of the base plate, a connecting rod is connected to the support in a sliding and penetrating manner, and a vertical downward inserting plate is fixedly arranged on one side, close to the center of the base plate, of the connecting rod.
As a further scheme of the invention: the bottom of the inserting plate is fixedly provided with a hook, and one side of the connecting rod, which is far away from the inserting plate, is fixedly provided with a pressing plate.
As a further scheme of the invention: the periphery of the connecting rod is sleeved with a return spring, and two ends of the return spring are connected to the support and the inserting plate respectively.
The invention has the beneficial effects that:
(1) the LED chips that adjacent crisscross distribution can effectively improve the luminous homogeneity of light source, and the LED chip can select the light source of different colours, when the light source of different colours is chooseed for use to LED chip, the LED chip crisscross distribution of the different colours of level and vertical direction, and the same kind of class chip is not adjacent on same row and row, the light source that different colours can be guaranteed in such arranging distributes evenly, and the light that launches mixes also relatively evenly, the holistic luminous effect of backlight has been improved, ensure the pleasing to the eye degree of light source.
(2) The light source diversity of the LED backlight source is improved through the auxiliary lamp, so that the application range of the LED backlight source is improved, and different requirements on different occasions are met.
(3) The scraper is arranged to remove dust on the surface of the backlight source, the brush hair is arranged on one side, facing the upper brightness enhancement film, of the scraper, and the surface of the upper brightness enhancement film is cleaned through the brush hair, so that the dust removal effect on the backlight source can be improved, the upper brightness enhancement film keeps good light transmittance, and the light brightness of the light source is improved.
(4) The installation component is arranged to facilitate installation of the base plate, the assembly and disassembly are convenient and rapid, and the stability is good after installation.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic diagram of the LED chip arrangement of the present invention;
FIG. 3 is an enlarged schematic view of the invention at A in FIG. 1;
fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1. a substrate; 2. an LED chip; 3. protective glue; 4. a rubber frame; 5. a first structural film; 6. a second structural film; 7. a third structural film; 8. compounding film; 9. a lower brightness enhancement film; 10. an upper brightness enhancement film; 11. shading glue; 12. a support pad; 13. a mounting member; 131. a support; 132. a connecting rod; 133. inserting plates; 134. hooking; 135. a return spring; 136. pressing a plate; 14. a protective pad; 30. an auxiliary light; 40. connecting sleeves; 50. a scraper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the invention relates to an ultrathin Mini-LED backlight source with uniform light emission, which comprises a substrate 1, wherein the substrate 1 is made of an FPC board or a PCB board, different specification models can be selected according to different working environments by selecting different boards of the substrate 1, so that the applicability of the LED backlight source is improved, rubber frames 4 are fixedly arranged around the upper end of the substrate 1, the arrangement of the rubber frames 4 realizes the edge sealing effect on the substrate 1, the leakage of a protective rubber 3 for sealing an LED chip 2 is effectively prevented, meanwhile, a protective pad 14 is also arranged between the rubber frame 4 and the substrate 1, the protective pad 14 effectively protects the substrate 1, and the influence on the normal use of the LED backlight source due to the damage of the rubber frame 4 on the substrate 1 is prevented; a plurality of groups of LED chips 2 are uniformly installed on the upper surface of the base plate 1, the LED chips 2 are used for light emitting of a backlight source, the outer side of each LED chip 2 is coated with one layer of protective glue 3, the protective glue 3 coats the LED chips 2 and plays a role in protection, the upper end of the protective glue 3 is provided with a protective film, the upper portion of the protective film is provided with one layer of composite film 8, the upper end of the composite film 8 is provided with a brightness enhancement film, and the edge of the brightness enhancement film is connected with a glue frame 4 through a shading glue 11.
The brightness enhancement film comprises a lower brightness enhancement film 9 and an upper brightness enhancement film 10, the enhancement effect of the light source can be effectively improved by adopting two layers of brightness enhancement films, and the protection effect of the LED chip 2 is improved by adopting a multilayer structure.
Referring to fig. 2, the LED chips 2 are distributed in a rectangular array on the substrate 1, and the LED chips 2 adjacent to each other in the horizontal direction are distributed in a staggered manner from top to bottom, the LED chips 2 adjacent to each other in the vertical direction are distributed in a staggered manner from left to right, the LED chips 2 distributed in the staggered manner from each other can effectively improve the uniformity of light emission of the light source, and the LED chips 2 can select light sources of different colors, when the LED chips 2 select light sources of different colors, the LED chips 2 of different colors in the horizontal direction and the vertical direction are distributed in a staggered manner, and the chips of the same type are not adjacent in the same row and column.
The protective film is of a three-layer film structure, namely a bottom first structural film 5, a middle second structural film 6 and an upper third structural film 7. The composite film 8 is a composite structure film made of BLT and QD materials, and a multilayer film structure is arranged to improve the protection effect on the LED chip 2.
Example two
The structure of this embodiment is the same as that of the first embodiment, except that:
the utility model provides a plurality of groups auxiliary lamp 30 are provided with to base plate 1 upper end, auxiliary lamp 30 is used for playing the supplementary effect of functional to the backlight, auxiliary lamp 30 sets up between a plurality of LED chips 2, the illumination demand of difference is realized through mixing with the light that LED chip 2 sent, auxiliary lamp 30 can be the flashing lamp chip, also can be the lamps and lanterns of different specifications such as laser lamp or reputation lamp, it effectively improves the light source variety of LED backlight, thereby improve the application scope of LED backlight, in order to realize the different demands under different occasions, as shown in figure 4.
Further, a dust removing mechanism can be further arranged in the embodiment, a connecting shaft is arranged at the center of the upper end of the upper brightness enhancement film 10, a connecting sleeve 40 is rotatably arranged on the connecting shaft, a scraper 50 is fixedly arranged on the connecting sleeve 40, the scraper 50 slides on the surface of the upper brightness enhancement film 10 by rotating the connecting sleeve 40, and the surface of the upper brightness enhancement film 10 is scraped and brushed by the scraper 50, so that dust removal is performed on the surface of the upper brightness enhancement film 10.
The thickness of scraper 50 is less than the distance between the adjacent LED chip 2, and scraper 50 is in vertical state and is located between two sets of LED chip 2 when not using, effectively avoids influencing the light effect of light source because of scraper 50.
EXAMPLE III
The main structure of this embodiment is the same as that of the first embodiment and the second embodiment, and the difference is that:
the two sides of the bottom of the substrate 1 are symmetrically provided with mounting components 13 for detachably mounting the substrate 1, and as shown in fig. 3, the bottom of the substrate 1 is uniformly provided with a plurality of supporting pads 12 for protecting the substrate 1. The mounting part 13 includes a support 131 fixedly disposed at the bottom of the substrate 1, a connecting rod 132 slidably connected to the support 131, and a vertical downward inserting plate 133 fixedly disposed on a side of the connecting rod 132 close to the center of the substrate 1.
The bottom of the insert plate 133 is fixedly provided with a hook 134, and one side of the connecting rod 132, which is far away from the insert plate 133, is fixedly provided with a pressing plate 136. The connecting rod 132 is sleeved with a return spring 135, and two ends of the return spring 135 are respectively connected to the support 131 and the inserting plate 133.
The base plate 1 is conveniently installed in the lampshade through the installation part 13, and the installation seat matched with the installation part 13 is arranged in the lampshade, so that the base plate 1 can be conveniently and quickly disassembled and assembled.
When the base plate 1 needs to be installed, the inserting plate 133 and the hook 134 are aligned to the installation hole formed in the installation seat, the inserting plate 133 is driven to move towards the center of the base plate 1 through pressing the pressing plate 136, then the hook 134 and the inserting plate 133 are inserted into the installation hole, the pressing plate 136 is loosened, the inserting plate 133 and the hook 134 rebound outwards under the action of the reset spring 135, the base plate 1 is locked and installed, the stability of installation of the base plate 1 is improved through the hook 134, and the base plate 1 is prevented from falling off.
When needs are dismantled substrate 1, drive picture peg 133 and move towards substrate 1 center through pressing down clamp plate 136, outwards pull substrate 1 afterwards and can accomplish the dismantlement to substrate 1, easy dismounting is swift, and the installation back stability is good.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a luminous even ultra-thin Mini-LED backlight, a serial communication port, including base plate (1), base plate (1) adopts FPC board or PCB board, and the upper end of base plate (1) is all fixed all around and is provided with gluey frame (4), and a plurality of groups LED chip (2) are evenly installed to the upper surface of base plate (1), and the cladding in the LED chip (2) outside has one deck protection to glue (3), and the upper end that the protection was glued (3) is provided with the protection film, and the top of protection film is provided with one deck complex film (8), and the upper end of complex film (8) is provided with the piece of adding lustre to, and the piece edge of adding lustre to links to each other with gluey frame (4) through shading glue (11).
2. The ultrathin Mini-LED backlight source as claimed in claim 1, wherein the LED chips (2) are distributed in a rectangular array on the substrate (1), the LED chips (2) adjacent to each other in the horizontal direction are staggered up and down, and the LED chips (2) adjacent to each other in the vertical direction are staggered left and right.
3. The ultrathin Mini-LED backlight source with uniform light emission according to claim 1, wherein a protective pad (14) is arranged between the rubber frame (4) and the substrate (1).
4. The ultrathin Mini-LED backlight source as claimed in claim 1, wherein the protective film has a three-layer film structure comprising a bottom first structural film (5), a middle second structural film (6) and an upper third structural film (7).
5. The ultrathin Mini-LED backlight source as claimed in claim 1, wherein the composite film (8) is a composite film of BLT and QD materials.
6. A uniform-lighting ultrathin Mini-LED backlight source as claimed in any one of claims 1 to 5, wherein the base plate (1) is symmetrically provided with mounting parts (13) at two sides of the bottom for detachably mounting the base plate (1).
7. The ultrathin Mini-LED backlight source as claimed in claim 6, wherein the bottom of the substrate (1) is uniformly provided with a plurality of supporting pads (12) for protecting the substrate (1).
8. The ultrathin Mini-LED backlight source as claimed in claim 6, wherein the mounting member (13) comprises a support (131) fixedly arranged at the bottom of the substrate (1), a connecting rod (132) is slidably connected through the support (131), and a vertical downward inserting plate (133) is fixedly arranged at one side of the connecting rod (132) close to the center of the substrate (1).
9. The ultrathin Mini-LED backlight source with uniform light emission as claimed in claim 8, wherein the bottom of the insert plate (133) is fixedly provided with a hook (134), and the side of the connecting rod (132) far away from the insert plate (133) is fixedly provided with a pressing plate (136).
10. The ultrathin Mini-LED backlight source with uniform light emission as claimed in claim 9, wherein the connecting rod (132) is sleeved with a return spring (135) at the periphery, and two ends of the return spring (135) are respectively connected to the support (131) and the inserting plate (133).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249713.6A CN114397783A (en) | 2022-03-14 | 2022-03-14 | Ultrathin Mini-LED backlight source with uniform light emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249713.6A CN114397783A (en) | 2022-03-14 | 2022-03-14 | Ultrathin Mini-LED backlight source with uniform light emission |
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| Publication Number | Publication Date |
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| CN114397783A true CN114397783A (en) | 2022-04-26 |
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| CN202210249713.6A Pending CN114397783A (en) | 2022-03-14 | 2022-03-14 | Ultrathin Mini-LED backlight source with uniform light emission |
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| CN214122630U (en) * | 2021-01-22 | 2021-09-03 | 深圳市鑫合安五金电子有限公司 | Backlight glass substrate mounting structure |
| CN113763813A (en) * | 2021-06-30 | 2021-12-07 | 深圳市南极光电子科技股份有限公司 | Straight following formula mini LED backlight unit |
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