CN210954391U - Prism sheet for reducing light diffusion - Google Patents
Prism sheet for reducing light diffusion Download PDFInfo
- Publication number
- CN210954391U CN210954391U CN201922342625.7U CN201922342625U CN210954391U CN 210954391 U CN210954391 U CN 210954391U CN 201922342625 U CN201922342625 U CN 201922342625U CN 210954391 U CN210954391 U CN 210954391U
- Authority
- CN
- China
- Prior art keywords
- layer
- prism
- light
- diffusion
- prism sheet
- 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
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model belongs to the technical field of optical device, specifically disclose a reduce light prism piece for diffusion, include by lower supreme reflection stratum, light source layer, diffusion layer and the prism layer that connects gradually, be provided with the plane of reflection of two at least sunken spherical structures on the upper surface of reflection stratum evenly distributed, it can avoid extravagant light source as far as possible, improves the utilization ratio of light, improves backlight unit's luminance.
Description
Technical Field
The utility model belongs to the technical field of optical device, a reduce light prism piece for diffusion is related to.
Background
The prism sheet has the function of improving the utilization rate of light, only when the incident light is within a certain angle range, the incident light can be emergent through the refraction effect, the rest light is reflected back to the light source by the edge of the prism structure because the refraction condition is not met, and then the rest light is emergent again under the action of the reflector plate at the bottom of the light source. When passing through the prism sheet, some light rays are wasted due to the prism structure, so that the problems of reducing the utilization rate of the light rays and reducing the brightness of the backlight module are caused.
SUMMERY OF THE UTILITY MODEL
An above-mentioned problem to prior art exists, the utility model aims to provide a reduce prism piece for light diffusion to solve the extravagant some light that prior art exists, reduce the utilization ratio of light, reduce backlight unit's the problem of luminance.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the prism sheet for reducing light diffusion comprises a reflecting layer, a light source layer, a diffusion layer and a prism layer which are sequentially connected from bottom to top, wherein the upper surface of the reflecting layer is uniformly provided with at least two reflecting surfaces with concave spherical structures.
In the above aspect, it is preferable that the reflective layer, the light source layer, the diffusion layer, and the prism layer are sequentially connected by a glue layer.
It may also be preferred that at least two prisms are arranged uniformly distributed on the prism layer.
It may also be preferred that the prisms are square in cross-section.
It may also be preferred that the longitudinal cross-section of the prism is an isosceles triangle.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a reduce prism piece for light diffusion can solve the extravagant some light that prior art exists, reduces the utilization ratio of light, reduces backlight unit's the problem of luminance, and it can avoid extravagant light source as far as possible, improves the utilization ratio of light, improves backlight unit's luminance.
Drawings
Fig. 1 is a schematic structural view of the prism sheet for reducing light diffusion according to the present invention.
Fig. 2 is a schematic structural view of a reflection layer of a prism layer of the prism sheet for reducing light diffusion according to the present invention.
Fig. 3 is a schematic structural view of a prism layer of the prism sheet for reducing light diffusion according to the present invention.
In the figure, 1 is a reflection layer, 101 is a reflection surface, 2 is a light source layer, 3 is a diffusion layer, and 4 is a prism layer. The arrows in fig. 2 and 3 indicate the direction of light propagation.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
A prism sheet for reducing light diffusion comprises a reflecting layer 1, a light source layer 2, a diffusion layer 3 and a prism layer 4 which are sequentially connected from bottom to top as shown in figure 1, wherein at least two reflecting surfaces 101 with concave spherical structures are uniformly distributed on the upper surface of the reflecting layer 1 as shown in figure 2.
The prism sheet for reducing light diffusion can reduce diffuse reflection of light, avoid light source waste, improve the utilization rate of the light and improve the brightness of the backlight module.
Example two
A prism sheet for reducing light diffusion, similar to example 1, except that a reflective layer 1, a light source layer 2, a diffusion layer 3 and a prism layer 4 were sequentially connected by an adhesive layer.
Still further, as shown in fig. 3, at least two prisms are uniformly distributed on the prism layer 4.
Still further, the prism may have a square cross-section.
Still further, the longitudinal section of the prism is an isosceles triangle.
Further, the light source layer 2 may be a surface light source. The light source layer 2 may include at least two LED beads uniformly distributed. The diffusion layer 3 may be a diffusion film layer. The outer contours of the reflective layer 1, the light source layer 2, the diffusion layer 3, and the prism layer 4 may be square. The central axis of the prism is perpendicular to the light source layer 2, the diffusion layer 3 and the prism layer 4.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (5)
1. The prism sheet for reducing light diffusion comprises a reflecting layer (1), a light source layer (2), a diffusion layer (3) and a prism layer (4) which are sequentially connected from bottom to top, and is characterized in that at least two reflecting surfaces (101) with concave spherical structures are uniformly distributed on the upper surface of the reflecting layer (1).
2. The prism sheet for reducing light diffusion according to claim 1, wherein the reflection layer (1), the light source layer (2), the diffusion layer (3), and the prism layer (4) are sequentially connected by an adhesive layer.
3. The prism sheet for reducing light diffusion according to claim 1, wherein the prism layer (4) is provided with at least two prisms uniformly distributed.
4. The prism sheet for reducing light diffusion of claim 3, wherein a cross-section of the prism is square.
5. The prism sheet for reducing light diffusion of claim 4, wherein a longitudinal section of the prism is an isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922342625.7U CN210954391U (en) | 2019-12-24 | 2019-12-24 | Prism sheet for reducing light diffusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922342625.7U CN210954391U (en) | 2019-12-24 | 2019-12-24 | Prism sheet for reducing light diffusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210954391U true CN210954391U (en) | 2020-07-07 |
Family
ID=71375072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922342625.7U Active CN210954391U (en) | 2019-12-24 | 2019-12-24 | Prism sheet for reducing light diffusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210954391U (en) |
-
2019
- 2019-12-24 CN CN201922342625.7U patent/CN210954391U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103277739B (en) | A kind of optical lens | |
| CN202469764U (en) | Sidelight type backlight | |
| CN203849450U (en) | Light guide plate | |
| CN102809105A (en) | Backlight module and display device | |
| CN101440935A (en) | Light guide board and illuminating device thereof | |
| CN206479663U (en) | Backlight module and display device | |
| CN206818904U (en) | Composite construction bright enhancement film and backlight module | |
| WO2018201538A1 (en) | Led light strip and backlight assembly | |
| CN202229028U (en) | Backlight module and LCD | |
| CN108897091B (en) | Compound straight following formula backlight unit | |
| CN207096639U (en) | A kind of backlight module | |
| CN210954391U (en) | Prism sheet for reducing light diffusion | |
| CN101393281A (en) | Back light module unit and prismatic lens thereof | |
| CN202992930U (en) | Backlight module and liquid crystal display device | |
| CN208922017U (en) | A kind of back light mould group | |
| CN102661574A (en) | Light guide plate and backlight mould provided with same | |
| CN203533426U (en) | Novel LED lens and liquid crystal display backlight screen | |
| CN207817368U (en) | A kind of downward back optical lens | |
| WO2023284239A1 (en) | Light-splitting plate | |
| CN106195727A (en) | Light source module | |
| CN209656924U (en) | A kind of optics composite brightening film | |
| CN201306675Y (en) | Lens | |
| CN208270893U (en) | A kind of backlight module and display device | |
| CN204389728U (en) | A kind of light is concentrated and the light guide plate of equal light | |
| CN203732746U (en) | Reflective secondary lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |