CN220207907U - Light guide plate - Google Patents
Light guide plate Download PDFInfo
- Publication number
- CN220207907U CN220207907U CN202320404150.3U CN202320404150U CN220207907U CN 220207907 U CN220207907 U CN 220207907U CN 202320404150 U CN202320404150 U CN 202320404150U CN 220207907 U CN220207907 U CN 220207907U
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- guide plate
- substrate
- incident surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000007731 hot pressing Methods 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 12
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229920005553 polystyrene-acrylate Polymers 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 235000009537 plain noodles Nutrition 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a light guide plate in the technical field of light guide plates, which comprises a light guide plate, wherein the light guide plate is formed by taking a substrate as a central plate, the bottom surface of the light guide plate is provided with a light incident surface, the top surface of the light guide plate is provided with a light emergent surface, the top surface of the substrate is provided with a light guide point, the upper surface of the light emergent surface is provided with a diffusion sheet, the bottom surface of the light incident surface is fixedly provided with a reflecting film, the bottom surface of the light emergent surface is covered on the light guide point on the top surface of the substrate, the light incident surface and the light emergent surface are formed by hot pressing, and the light incident surface is made of a pc board. The light guide plate formed by hot pressing is arranged, so that the bottom surface of the light guide point, which is positioned on the light emitting surface, of the light guide plate is sealed when the light guide plate is used, dust is prevented from being stuck to the light guide plate, the bottom surface of the substrate is provided with the light incident surface, and when the substrate is connected with a light source, the light incident surface can be used as a barrier layer, so that the ink storage state of the light guide point is prevented from being influenced by heat transfer too fast.
Description
Technical Field
The present utility model relates to the field of light guide plate technology, and in particular, to a light guide plate.
Background
The light guide plate is made of an optical acrylic/PC plate, and then a high-tech material with extremely high refractive index and no light absorption is used for printing light guide points on the bottom surface of the optical acrylic plate by using laser engraving, V-shaped cross grid engraving and UV screen printing technologies. The light emitted from the lamp is absorbed by the optical acrylic plate and stays on the surface of the optical acrylic plate, when the light rays are emitted to each light guide point, the reflected light can be diffused towards each angle, and then the reflection condition is destroyed and emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The light exposed from the bottom surface is reflected back to the light guide plate by the reflecting sheet, so that the use efficiency of the light is improved; under the condition of the same area of luminous brightness, the luminous efficiency is high, and the power consumption is low. The single-sided microstructure array light guide plate generally adopts a manufacturing process of extrusion molding.
The existing light guide plate is generally used in the aspects of backlight sources of liquid crystal displays, ultrathin advertising lamp boxes, medical X-ray film viewers and the like, dust can be stuck due to poor protection of the light guide plate due to the arrangement of light guide points on the surface, and the cleaning difficulty is high.
Disclosure of Invention
In view of the above problems, the present utility model provides a light guide plate, which has the function of preventing dust from adhering to a light guide point, and simultaneously adding an isolated pc board light incident surface for slowing down the heat transmission speed and ensuring the service life of the light guide point.
The technical scheme of the utility model is as follows:
the utility model provides a light guide plate, includes the light guide plate, the light guide plate is as the center plate by the base plate, the bottom surface of light guide plate is equipped with into the plain noodles, the top surface of light guide plate is equipped with out the plain noodles, the top surface of base plate has the light guide point, the upper surface of light exit is equipped with the diffusion piece, the bottom surface fixed mounting of income plain noodles has the reflectance coating, and the bottom surface of light exit covers on the top surface light guide point of base plate, income plain noodles, light exit are formed by hot pressing, the material of income plain noodles is the pc board.
In a further technical scheme, the light guide points comprise light guide convex particles uniformly distributed on the upper surface of the substrate, and the light guide convex particles are in protruding hemispherical shapes.
In a further technical scheme, the substrate is made of polystyrene or polymethyl methacrylate.
In a further technical scheme, the height of the bulges of the light guide convex particles is 0.02mm, and the diameter of the bulges is 0.1mm.
In a further technical scheme, the thickness of the light guide plate is 1cm, and the thickness of the substrate is 0.5cm.
The beneficial effects of the utility model are as follows:
the light guide plate formed by hot pressing is arranged, so that the bottom surface of the light guide point positioned on the light emitting surface is sealed when the light guide plate is used, dust adhesion is avoided, meanwhile, the bottom surface of the substrate is provided with the light incident surface, and when the substrate is connected with a light source, the light incident surface can be used as a barrier layer, so that the ink storage state of the light guide point is prevented from being influenced by too fast heat transfer;
drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic side sectional view of an embodiment of the present utility model;
fig. 3 is a schematic side view of an embodiment of the present utility model.
Reference numerals illustrate:
1. a light guide plate; 2. a substrate; 3. a light incident surface; 4. a light-emitting surface; 5. a reflective film; 6. a diffusion sheet; 7. light guide convex particles.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Examples:
as shown in fig. 1-3, a light guide plate comprises a light guide plate 1 with a thickness of 1cm, wherein the light guide plate 1 is made of a substrate 2 serving as a central plate, the substrate 2 is made of polystyrene or polymethyl methacrylate, the thickness of the substrate 2 is 0.5cm, a light incident surface 3 is arranged on the bottom surface of the light guide plate 1, a reflecting film 5 is fixedly arranged on the bottom surface of the light incident surface 3, a light emergent surface 4 is arranged on the top surface of the light guide plate 1, a diffusion sheet 6 is arranged on the upper surface of the light emergent surface 4, the light guide plate 1 has a stable light guide effect, the top surface of the substrate 2 is provided with a plurality of uniformly distributed light guide convex particles 7, the bottom surface of the light emergent surface 4 is covered on the light guide convex particles 7 on the top surface of the substrate 2, the light guide convex particles 7 are in a protruding hemispherical shape, the convex height of the light guide convex particles 7 is 0.02mm, the diameter of 0.1mm, the light incident surface 3 and the light emergent surface 4 are in hemispherical shape, and the light guide plate is formed by the heat pressing the light incident surface 3.
The working principle of the technical scheme is as follows:
when the light guide plate 1 formed by hot pressing is used, the light guide plate has a sealing edge structure, dust is prevented from being stuck on the light guide convex particles 7 exposed in the air, meanwhile, the pc board light inlet surface 3 is arranged on the bottom surface of the substrate 2, and when the substrate 2 is connected with a light source, the light inlet surface 3 can be used as a barrier layer to prevent the heat transfer from affecting the ink storage state of the light guide point too quickly.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (5)
1. A light guide plate comprising a light guide plate (1), characterized in that: the light guide plate (1) is used as a central plate by a substrate (2), a light incident surface (3) is arranged on the bottom surface of the light guide plate (1), a light emergent surface (4) is arranged on the top surface of the light guide plate (1), a diffusion sheet (6) is arranged on the upper surface of the light emergent surface (4), a reflecting film (5) is fixedly arranged on the bottom surface of the light incident surface (3), the top surface of the substrate (2) is provided with a light guide point, the bottom surface of the light emergent surface (4) is covered on the top surface of the substrate (2), and the substrate (2), the light incident surface (3) and the light emergent surface (4) are formed by hot pressing, and the light incident surface (3) is made of a pc board.
2. A light guide plate according to claim 1, wherein: the light guide points comprise light guide convex particles (7) which are uniformly distributed on the upper surface of the substrate (2), and the light guide convex particles (7) are in the shape of protruding hemispheres.
3. A light guide plate according to claim 1, wherein: the substrate (2) is made of polystyrene or polymethyl methacrylate.
4. A light guide plate according to claim 2, wherein: the height of the bulges of the light guide convex particles (7) is 0.02mm, and the diameter of the bulges is 0.1mm.
5. A light guide plate according to claim 1, wherein: the thickness of the light guide plate (1) is 1cm, and the thickness of the substrate (2) is 0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320404150.3U CN220207907U (en) | 2023-03-07 | 2023-03-07 | Light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320404150.3U CN220207907U (en) | 2023-03-07 | 2023-03-07 | Light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220207907U true CN220207907U (en) | 2023-12-19 |
Family
ID=89151230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320404150.3U Active CN220207907U (en) | 2023-03-07 | 2023-03-07 | Light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220207907U (en) |
-
2023
- 2023-03-07 CN CN202320404150.3U patent/CN220207907U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |