CN220671676U - Light guide plate and backlight module adopting same - Google Patents
Light guide plate and backlight module adopting same Download PDFInfo
- Publication number
- CN220671676U CN220671676U CN202322381890.2U CN202322381890U CN220671676U CN 220671676 U CN220671676 U CN 220671676U CN 202322381890 U CN202322381890 U CN 202322381890U CN 220671676 U CN220671676 U CN 220671676U
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- China
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- light
- guide plate
- light guide
- backlight module
- lattice point
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- 238000009792 diffusion process Methods 0.000 claims abstract description 19
- 239000010408 film Substances 0.000 claims description 33
- 239000012788 optical film Substances 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 8
- 230000002265 prevention Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000035807 sensation Effects 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a light guide plate, which comprises a light incident surface, a light emergent surface and a bottom surface opposite to the light emergent surface, wherein the bottom surface is provided with a plurality of groups of arc grooves in a rectangular array, the light incident surface is arranged on the inner wall of the arc grooves, and the light incident surface is provided with a lattice point structure or the light emergent surface is provided with a lattice point structure; the light guide plate can scatter light in transmission through the dot structure on the bottom surface, so that the light is uniformly distributed, and the structure diffusion film and the light splitting film can be saved when the light guide plate is applied to a miniLED backlight module, so that the cost of the miniLED backlight module is reduced, the visual granular sensation can be eliminated, and the visual effect of the module is improved when the light guide plate is applied to the backlight module.
Description
Technical Field
The utility model relates to the field of display, in particular to a light guide plate and a backlight module adopting the light guide plate.
Background
The liquid crystal display has the advantages of light weight, thinness, low power consumption and the like, and is widely applied to modern information equipment such as notebook computers, mobile phones, personal digital assistants and the like. Since the liquid crystal in the liquid crystal display has no light emitting property, a backlight module is required to be provided for realizing the display function. The backlight module needs to have higher brightness, thereby improving the color contrast of the liquid crystal display, the brightness effect of the full-screen area and the visual angle of the whole machine. In addition, in order to meet the requirements of light and thin liquid crystal display, the structural design of the liquid crystal display cannot be too complex.
The miniLED backlight module of the prior art generally adopts a lamp panel plate and four layers of optical films: the light guide plate and the backlight module using the same are required to be provided.
Disclosure of Invention
The utility model aims to provide a light guide plate and a backlight module adopting the light guide plate, and the light guide plate can scatter light in transmission through a dot structure on the bottom surface, so that the light is uniformly distributed, and when the light guide plate is applied to a miniLED backlight module, a structure diffusion film and a light splitting film can be saved, visual granular sense is eliminated, and the cost of the miniLED backlight module is reduced, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the light guide plate comprises a light incident surface, a light emergent surface and a bottom surface opposite to the light emergent surface, wherein a plurality of groups of arc grooves are formed in the bottom surface in a rectangular array, the light incident surface is arranged on the inner wall of the arc grooves, and the light incident surface is provided with a lattice point structure or the light emergent surface is provided with a lattice point structure.
Preferably, the light incident surface and the light emergent surface of the light guide plate are both provided with lattice point structures with the function of preventing the optical film from being adsorbed.
Preferably, the lattice point structure is formed by injection molding or embossing.
Preferably, the diameter of the dot structure is 0.055mm, and the spacing of the dot structure is as follows: 0.1mm, the lattice point structure depth is: 0.055mm.
Preferably, a backlight module comprises a back plate, a light source, a light guide plate, an LED chip, an arc-shaped block and a plurality of groups of optical films, wherein the light guide plate, the arc-shaped block and the LED chip are arranged at the top of the back plate, and the LED chip is arranged below the arc-shaped block.
Preferably, the optical films comprise a first diffusion film, a light splitting film, a QD film, a light enhancement film and a second diffusion film, the first diffusion film, the light splitting film, the QD film, the light enhancement film and the second diffusion film are sequentially overlapped on the light guide plate, and the light source is arranged on the side part of the light guide plate.
Preferably, the light incident surface and the light emergent surface of the light guide plate are both provided with lattice point structures, and the arc-shaped blocks are arranged in the arc-shaped grooves.
Compared with the prior art, the utility model has the beneficial effects that:
the light guide plate can scatter light in transmission through the dot structure on the bottom surface, so that the light is uniformly distributed, and the structure diffusion film and the light splitting film can be saved when the light guide plate is applied to a miniLED backlight module, so that the cost of the miniLED backlight module is reduced, the visual granular sensation can be eliminated, and the visual effect of the module is improved when the light guide plate is applied to the backlight module.
Drawings
FIG. 1 is a schematic view of a light guide plate according to the present utility model;
FIG. 2 is a schematic view of a light guide plate according to the present utility model;
FIG. 3 is a schematic diagram of a light guide plate and a backlight module according to the present utility model;
FIG. 4 is a schematic diagram showing a split structure of a light guide plate and a backlight module according to the present utility model;
FIG. 5 is an enlarged schematic view of the structure of the area A in FIG. 1 according to the present utility model;
fig. 6 is an enlarged schematic view of the structure of the region B in fig. 2 according to the present utility model.
In the figure: 1. a back plate; 2. an LED chip; 3. a light guide plate; 4. a light-emitting surface; 5. a light incident surface; 6. a light source; 7. a first diffusion film; 8. a light-splitting film; 9. QD films; 10. a light enhancement film; 11. a second diffusion film; 12. a bottom surface; 13. an arc-shaped groove; 14. arc blocks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the light guide plate comprises a light incident surface 5, a light emergent surface 4 and a bottom surface 12 opposite to the light emergent surface 4, wherein a plurality of groups of arc grooves 13 are formed in the bottom surface 12 in a rectangular array, the light incident surface 5 is arranged on the inner wall of the arc grooves 13, and the light incident surface 5 is provided with a lattice point structure or the light emergent surface 4 is provided with a lattice point structure;
through the arrangement of the light incidence surface 5, the light in transmission can be scattered through the lattice point structure on the light incidence surface 5 at the bottom of the light guide plate, so that the light is uniformly distributed, the light coming out of the light emergence surface 4 is more uniformly distributed, and the effect of a diffusion sheet is achieved, so that when the light guide plate is applied to a backlight module, the visual effect of the backlight module is improved more uniformly, one diffusion film and one light splitting film can be saved, visual granular sense is eliminated, (the visual granular sense is generated by the light emitting of an LED chip on a lamp panel in a miniLED), and the cost of the miniLED backlight module is reduced;
the light incidence surface 5 and the light emergence surface 4 of the light guide plate 3 are respectively provided with a lattice point structure with an anti-optical film adsorption function;
the dot structure is formed by adopting an injection molding or imprinting mode, the diameter of the dot structure is 0.055mm, and the spacing of the dot structure is as follows: 0.1mm, the lattice point structure depth is: 0.055mm;
a backlight module comprises a back plate 1, a light source 6, a light guide plate 3, an LED chip 2, an arc-shaped block 14 and a plurality of groups of optical films, wherein the light guide plate 3, the arc-shaped block 14 and the LED chip 2 are arranged at the top of the back plate 1, and the LED chip 2 is arranged below the arc-shaped block 14;
the arc-shaped block 14 is arranged, so that light emitted by the LED chip 2 can be conducted through the arc-shaped block 14;
the multiple groups of optical films comprise a first diffusion film 7, a light splitting film 8, a QD film 9, a light enhancement film 10 and a second diffusion film 11, wherein the first diffusion film 7, the light splitting film 8, the QD film 9, the light enhancement film 10 and the second diffusion film 11 are sequentially overlapped on the light guide plate 3, and the light source 6 is arranged on the side part of the light guide plate 3;
the light incident surface 5 and the light emergent surface 4 of the light guide plate 3 are both provided with lattice point structures, and the arc-shaped blocks 14 are arranged in the arc-shaped grooves 13.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A light guide plate, characterized in that: the LED lamp comprises a light incident surface (5), a light emergent surface (4) and a bottom surface (12) opposite to the light emergent surface (4), wherein the bottom surface (12) is provided with a plurality of groups of arc grooves (13) in a rectangular array, the light incident surface (5) is arranged on the inner wall of the arc grooves (13), and the light incident surface (5) is provided with a lattice point structure or the light emergent surface (4) is provided with a lattice point structure.
2. A light guide plate as defined in claim 1, wherein: the light guide plate (3) has a light incident surface (5) and a light emergent surface (4) which are both provided with lattice point structures with an optical film adsorption prevention function.
3. A light guide plate as defined in claim 1, wherein: the lattice point structure is formed by adopting an injection molding or embossing mode.
4. A light guide plate as defined in claim 1, wherein: the diameter of the net point structure is 0.055mm, and the spacing of the net point structure is as follows: 0.1mm, the lattice point structure depth is: 0.055mm.
5. A backlight module is characterized in that: including backplate (1), light source (6), light guide plate (3), LED chip (2), arc piece (14) and multiunit optics diaphragm, light guide plate (3), arc piece (14) and LED chip (2) all set up the top at backplate (1), LED chip (2) set up the below at arc piece (14).
6. A backlight module according to claim 5, wherein: the multiunit optical film piece includes first diffusion membrane (7), beam split membrane (8), QD membrane (9), light enhancement film (10) and second diffusion membrane (11), first diffusion membrane (7), beam split membrane (8), QD membrane (9), light enhancement film (10) are the stack in proper order with second diffusion membrane (11) and set up on light guide plate (3), light source (6) set up the lateral part at light guide plate (3).
7. A backlight module according to claim 5, wherein: the light incident surface (5) and the light emergent surface (4) of the light guide plate (3) are respectively provided with a lattice point structure, and the arc-shaped blocks (14) are arranged in the arc-shaped grooves (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381890.2U CN220671676U (en) | 2023-09-04 | 2023-09-04 | Light guide plate and backlight module adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381890.2U CN220671676U (en) | 2023-09-04 | 2023-09-04 | Light guide plate and backlight module adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671676U true CN220671676U (en) | 2024-03-26 |
Family
ID=90333793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322381890.2U Active CN220671676U (en) | 2023-09-04 | 2023-09-04 | Light guide plate and backlight module adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671676U (en) |
-
2023
- 2023-09-04 CN CN202322381890.2U patent/CN220671676U/en active Active
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