CN215067398U - Heat-resistant soft light guide plate - Google Patents
Heat-resistant soft light guide plate Download PDFInfo
- Publication number
- CN215067398U CN215067398U CN202120627160.4U CN202120627160U CN215067398U CN 215067398 U CN215067398 U CN 215067398U CN 202120627160 U CN202120627160 U CN 202120627160U CN 215067398 U CN215067398 U CN 215067398U
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- Prior art keywords
- light
- sheet
- guide plate
- heat
- arc
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- Expired - Fee Related
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- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004417 polycarbonate Substances 0.000 claims abstract description 7
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 7
- 239000004793 Polystyrene Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 41
- 239000011521 glass Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 201000009310 astigmatism Diseases 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a heat-resistant soft light guide plate, which comprises a light incident sheet, a light scattering sheet and a light emergent sheet; the incident light sheet is formed by two layers which are overlapped up and down; the light scattering sheet is stacked on the lower surface of the light incidence sheet, and a plurality of arc-shaped grooves are concavely arranged on the upper surface and the lower surface of the light scattering sheet; the light emergent sheet covers the lower surface of the light scattering sheet, the light emergent sheet comprises an antireflection film and a light intensifying sheet, and the light intensifying sheet covers the lower surface of the antireflection film; forming a first light entering layer by adopting a Polycarbonate (PC) material and forming a second light entering layer by adopting a Polystyrene (PS) material to form a light entering sheet; the product has good impact resistance and heat resistance, and can well insulate the incident light source; and, through a plurality of arc recesses of surface cutting about the astigmatic sheet, can carry out better reflection astigmatism with the light of incidenting into, when can carrying out astigmatism with light, guarantee the luminance of light.
Description
Technical Field
The utility model belongs to the technical field of the light guide plate technique and specifically relates to indicate a soft light guide plate of heat-resistant type.
Background
The light guide plate is characterized in that light guide points are printed on the bottom surface of an optical acrylic plate by using an optical acrylic/PC plate and then using a high-tech material with extremely high refractive index and no light absorption in modes of laser engraving, V-shaped cross grid engraving, UV screen printing technology and the like. The optical-grade acrylic sheet is used for absorbing the light emitted from the lamp to stay on the surface of the optical-grade acrylic sheet, when the light irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is damaged and is 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 reflecting sheet is used for reflecting the light exposed from the bottom surface back to the light guide plate to improve the light use efficiency, and has high light emitting efficiency and low power consumption under the condition of the same area light emitting brightness. The single-sided microstructure array light guide plate is generally manufactured by an extrusion molding process.
When the existing light guide plate diffuses light, two problems generally exist, firstly, the diffusion effect is poor, and the eyes of a user feel dazzling when facing the light; or the refractive index is low, although the light is soft, the light is poor, and the use experience is poor due to insufficient brightness; therefore, there is a need for improvement of the current light guide plate.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a heat-resistant soft light guide plate, which can effectively solve the problem that the light of the light source cannot be diffused well by the existing light guide plate, resulting in poor user experience.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heat-resistant soft light guide plate comprises a light inlet sheet, a light diffusion sheet and a light outlet sheet; the light inlet sheet is formed by two layers which are overlapped up and down, and comprises a first light inlet layer formed by polycarbonate material and a second light inlet layer formed by polystyrene material; the first light incident layer is bonded on the upper surface of the second light incident layer; the light scattering sheet is stacked on the lower surface of the light incidence sheet, a plurality of arc grooves are concavely arranged on the upper surface and the lower surface of the light scattering sheet, and the arc grooves on the upper surface and the lower surface of the light scattering sheet are symmetrically distributed relative to the diagonal plane of the light scattering sheet; the light emergent sheet covers the lower surface of the light scattering sheet, and comprises an antireflection film and a light intensifying sheet, wherein the light intensifying sheet covers the lower surface of the antireflection film.
As a preferable scheme, the light entrance sheet faces the light source, and the light entrance sheet is flat.
Preferably, the thickness of the first light-entering layer is 250-600 μm.
Preferably, the thickness of the second light-entering layer is 500-1400 μm.
Preferably, the upper surface and the lower surface of the light scattering sheet are covered with glass glue layers, the glass glue layers bond the light scattering sheet to the lower surface of the light inlet sheet, and the glass glue layers bond the light scattering sheet to the upper surface of the light outlet sheet.
Preferably, the arc radiuses of the plurality of arc grooves on the same surface are gradually decreased from 800 μm to 300 μm from one side to the other side.
As a preferred scheme, the arc-shaped grooves are two groups of upper and lower groups which are symmetrically distributed relative to a diagonal plane, and the arc-shaped grooves with large diameters and the arc-shaped grooves with small diameters are distributed up and down.
As a preferable scheme, the light transmittance of the antireflection film is 92% -99%, and the antireflection film is adhered to the lower part of the light scattering sheet through a glass adhesive layer; the thickness of the antireflection film is 500-1000 μm.
Preferably, the thickness of the brightness enhancement film is 65-220 μm.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
forming a first light entering layer by adopting a Polycarbonate (PC) material and forming a second light entering layer by adopting a Polystyrene (PS) material to form a light entering sheet; the product has good impact resistance and heat resistance, can better insulate the incident light source, prevent the product from yellowing, and can better refract the incident light source; and, through the different arc recess of a plurality of diameters of upper and lower surface cutting at the astigmatic sheet, can carry out better reflection astigmatism with the light of kicking into, realize in the use, when can carrying out astigmatism with light, guarantee the luminance of light, promote user's experience and feel.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;
fig. 2 is a cross-sectional view of a preferred embodiment of the present invention.
The attached drawings indicate the following:
10. light incident sheet 11 and first light incident layer
12. Second light incident layer 20, light diffusion sheet
21. Arc-shaped groove 30 and light emitting sheet
31. Antireflection film 32, brightness enhancement film
40. And (4) a glass glue layer.
Detailed Description
Referring to fig. 1 to 2, specific structures of a preferred embodiment of the present invention are shown, including a light incident sheet 10, a light scattering sheet 20 and a light emergent sheet 30.
The light-entering sheet 10 is formed by two layers which are stacked up and down, and comprises a first light-entering layer 11 formed by Polycarbonate (PC) material and a second light-entering layer 12 formed by Polystyrene (PS) material; the first light incident layer 11 is adhered to the upper surface of the second light incident layer 12; in this embodiment, the light incident sheet 10 faces the light source, and the light incident sheet 10 is a flat plate; the first light incident layer 11 has good impact resistance, good heat resistance and good processability, and can better refract an incident light source, and the thickness of the first light incident layer 11 is 250-600 μm; the second light incident layer 12 has good heat preservation and heat insulation performance, can better perform heat insulation treatment on an incident light source to prevent the product from yellowing, and the thickness of the second light incident layer 12 is 500-1400 mu m.
The light diffusion sheet 20 is overlapped on the lower surface of the light incidence sheet 10, a plurality of arc grooves 21 are concavely arranged on the upper surface and the lower surface of the light diffusion sheet 20, the arc grooves 21 on the upper surface and the lower surface of the light diffusion sheet 20 are symmetrically distributed relative to the diagonal plane of the light diffusion sheet 20, and light rays incident from the outside can be reflected to different positions through the arc grooves 21, so that the light rays are diffused and distributed; in this embodiment, the upper and lower surfaces of the light diffusion sheet 20 are covered with glass glue layers 40, the glass glue layers 40 can provide better adhesion, the glass glue layers 40 adhere the light diffusion sheet 20 to the lower surface of the light entrance sheet 10, and the glass glue layers 40 adhere the light diffusion sheet 20 to the upper surface of the light exit sheet 30; the arc radiuses of the arc grooves 21 on the same surface gradually decrease from one side to the other side from 800 micrometers to 300 micrometers, and the arc grooves 21 are two upper groups and two lower groups which are symmetrically distributed relative to a diagonal plane, and the arc grooves 21 with large diameters and the arc grooves 21 with small diameters are distributed up and down and reflect incident light, so that the reflection and light scattering functions are realized.
The light-emitting sheet 30 covers the lower surface of the light-diffusing sheet 20, the light-emitting sheet 30 comprises an antireflection film 31 and a light-intensifying sheet 32, the soft light reflected by the light-diffusing sheet 20 is further optimized, the brightness of the soft light transmitted out is increased, and the light-intensifying sheet 32 covers the lower surface of the antireflection film 31; in this embodiment, the transmittance of the antireflection film 31 is 92% to 99%, and the antireflection film 31 is adhered to the lower side of the light diffusion sheet 20 through the glass adhesive layer 40; the thickness of the antireflection film 31 is 500-1000 μm; the thickness of the brightness enhancement film 32 is 65-220 μm.
Detailed description the assembly process of this embodiment is as follows:
firstly, the light incident sheet 10 is injection molded, then a plurality of arc-shaped grooves 21 are cut on the upper and lower surfaces of the light scattering sheet 20 by a linear cutting machine, the diameters of the arc-shaped grooves 21 are different, then the glass glue layers 40 are bonded on the upper and lower surfaces of the light scattering sheet 20, and finally the light emergent sheet 30 is bonded and covered on the lower surface of the light scattering sheet 20.
The utility model discloses a design focus lies in: forming a first light entering layer by adopting a Polycarbonate (PC) material and forming a second light entering layer by adopting a Polystyrene (PS) material to form a light entering sheet; the product has good impact resistance and heat resistance, can better insulate the incident light source, prevent the product from yellowing, and can better refract the incident light source; and, through the different arc recess of a plurality of diameters of upper and lower surface cutting at the astigmatic sheet, can carry out better reflection astigmatism with the light of kicking into, realize in the use, when can carrying out astigmatism with light, guarantee the luminance of light, promote user's experience and feel.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a soft light guide plate of heat-resistant type which characterized in that: comprises a light incident sheet, a light scattering sheet and a light emergent sheet; the light inlet sheet is formed by two layers which are overlapped up and down, and comprises a first light inlet layer formed by polycarbonate material and a second light inlet layer formed by polystyrene material; the first light incident layer is bonded on the upper surface of the second light incident layer; the light scattering sheet is stacked on the lower surface of the light incidence sheet, a plurality of arc grooves are concavely arranged on the upper surface and the lower surface of the light scattering sheet, and the arc grooves on the upper surface and the lower surface of the light scattering sheet are symmetrically distributed relative to the diagonal plane of the light scattering sheet; the light emergent sheet covers the lower surface of the light scattering sheet, and comprises an antireflection film and a light intensifying sheet, wherein the light intensifying sheet covers the lower surface of the antireflection film.
2. The heat-resistant soft light guide plate according to claim 1, wherein: the light inlet sheet is opposite to the light source and is flat.
3. The heat-resistant soft light guide plate according to claim 1, wherein: the thickness of the first light incident layer is 250-600 μm.
4. The heat-resistant soft light guide plate according to claim 1, wherein: the thickness of the second light incident layer is 500-1400 μm.
5. The heat-resistant soft light guide plate according to claim 1, wherein: the upper surface and the lower surface of the light scattering sheet are covered with glass glue layers, the glass glue layers bond the light scattering sheet on the lower surface of the light incident sheet, and the glass glue layers bond the light scattering sheet on the upper surface of the light emergent sheet.
6. The heat-resistant soft light guide plate according to claim 1, wherein: the arc radiuses of a plurality of arc grooves on the same surface are gradually decreased from 800-300 mu m from one side to the other side.
7. The heat-resistant soft light guide plate according to claim 1, wherein: the arc-shaped grooves are two groups of upper and lower groups which are symmetrically distributed relative to a diagonal plane, and the arc-shaped grooves with large diameters and the arc-shaped grooves with small diameters are distributed up and down.
8. The heat-resistant soft light guide plate according to claim 1, wherein: the light transmittance of the antireflection film is 92% -99%, and the antireflection film is adhered to the lower part of the light scattering sheet through the glass adhesive layer; the thickness of the antireflection film is 500-1000 μm.
9. The heat-resistant soft light guide plate according to claim 1, wherein: the thickness of the brightness enhancement film is 65-220 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627160.4U CN215067398U (en) | 2021-03-29 | 2021-03-29 | Heat-resistant soft light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627160.4U CN215067398U (en) | 2021-03-29 | 2021-03-29 | Heat-resistant soft light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215067398U true CN215067398U (en) | 2021-12-07 |
Family
ID=79151690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120627160.4U Expired - Fee Related CN215067398U (en) | 2021-03-29 | 2021-03-29 | Heat-resistant soft light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215067398U (en) |
-
2021
- 2021-03-29 CN CN202120627160.4U patent/CN215067398U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |