CN113534309A

CN113534309A - PC diffusion plate

Info

Publication number: CN113534309A
Application number: CN202110686707.2A
Authority: CN
Inventors: 吴恺
Original assignee: Changzhou Aozhi Polymer New Material Co ltd
Current assignee: Changzhou Aozhi Polymer New Material Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-10-22

Abstract

The invention discloses a PC diffusion plate, which belongs to the field of diffusion plates and comprises a transparent substrate, wherein a light guide layer is arranged at the bottom of the transparent substrate, a first PC plate is arranged at the top of the transparent substrate, micro diffusion structures which are uniformly distributed are arranged at the top of the first PC plate, a second PC plate is arranged at the top of the micro diffusion structures, the micro diffusion structures are provided with four backlight strips, the four backlight strips are connected end to end, the top and the bottom of the four backlight strips are respectively connected with the first PC plate and the second PC plate, and a diffusion thin film layer is arranged at the top of the second PC plate. The PC diffuser plate of this scheme, through first PC board, if a miniature diffusion structure and the mutually supporting of second PC board, formed the multi-level diffusion to incident light, improved the diffusion effect to incident light, and incident light is after diffusion many times, and the diffusion gets more evenly.

Description

PC diffusion plate

Technical Field

The invention relates to the field of diffusion plates, in particular to a PC diffusion plate.

Background

The diffusion plate is characterized in that the diffusion plate utilizes the physical phenomena of refraction, reflection and scattering when light encounters two media with different refractive indexes in the traveling path by chemical or physical means, and inorganic or organic light diffusants are added into base materials such as PMMA, PC, PS, PP and the like, or the light is artificially adjusted through array arrangement of micro-feature structures on the surface of the base materials to be refracted, reflected and scattered in different directions, so that the traveling path of the light is changed, and the effect of optical diffusion is realized by filling and dispersing colors of the incident light.

The existing diffusion plate has the defects of generally uniform diffusion effect and large thermal expansion coefficient, and has the defects of brittleness, insufficient toughness and high thermal expansion coefficient, so that the existing diffusion plate cannot meet the increasingly high market requirement.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to solve the defects in the prior art and provides a PC diffusion plate.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a PC diffuser plate, includes transparent substrate, transparent substrate's bottom sets up the leaded light layer, transparent substrate's top is provided with first PC board, the top of first PC board is provided with evenly distributed's miniature diffusion structure, miniature diffusion structure's top is provided with second PC board, miniature diffusion structure is provided with four back of the body striations, four back of the body striations end to end connection and top, bottom are connected with first PC board and second PC board respectively, second PC board top is provided with the diffusion thin layer, first PC board and second PC board pass through PC particle, rutile titanium white powder and organic silicon miropowder misce bene and obtain through extrusion molding press forming.

As a further scheme of the invention:

the micro diffusion structure is two layers of multi-surface frustum bodies, and the side surfaces of the two layers of frustum bodies are not coplanar.

As a further scheme of the invention:

the top of first PC board just is located and has all seted up the inner groovy between two adjacent miniature diffusion structures, the inner wall of inner groovy is honeycomb prism structure.

As a further scheme of the invention:

the mass ratio of the PC particles to the rutile titanium dioxide to the organic silicon micro powder is 5:1: 1.

As a further scheme of the invention:

the transparent substrate is an acrylic plate or transparent glass.

As a further scheme of the invention:

the bottom of the light guide layer is provided with uniformly distributed concave points.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the PC diffuser plate of this scheme, through first PC board, if a miniature diffusion structure and the mutually supporting of second PC board, formed the multi-level diffusion to incident light, improved the diffusion effect to incident light, and incident light is after diffusion many times, and the diffusion gets more evenly.

(2) The first PC board and the second PC board are obtained by uniformly mixing PC particles, rutile titanium dioxide and organic silicon micro powder in a specific proportion and performing extrusion molding and compression molding, have excellent toughness and optical performance, have low thermal expansion rate, and meet the increasingly high market demand

(3) After light passed through first PC board diffuser plate, miniature diffusion structure can reflect and refract light once more, changes the propagation of light reverse for the light incident angle who gets into second PC board is various, and miniature diffusion structure is two-layer polygon terrace with edge body and the not coplane in side of two-layer terrace with edge body, more does benefit to the even propagation of light.

(4) When first PC board diffusion light, part light carries out the multi-angle transmission because of the honeycomb prism structure of in the inner groovy to reflect once more and spread through miniature diffusion structure, make light propagation direction more various, more be favorable to light evenly spread.

(5) Through the concave point that sets up evenly distributed on the surface on leaded light layer, the concave point can form dull polish effect on the surface on leaded light layer to the concave point can obtain promoting to the refraction diffusion performance of light.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a perspective view of the light guide layer connected to the pits in the present invention.

The reference numbers in the figures illustrate:

1. a transparent substrate; 2. a light guide layer; 3. a first PC board; 4. a micro-diffusion structure; 5. a second PC board; 6. a backlight bar; 7. a diffusion thin film layer; 8. an inner groove; 9. and (4) pits.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-3, a PC diffusion plate comprises a transparent substrate 1, a light guide layer 2 is arranged at the bottom of the transparent substrate 1, a first PC plate 3 is arranged at the top of the transparent substrate 1, micro diffusion structures 4 which are uniformly distributed are arranged at the top of the first PC plate 3, a second PC plate 5 is arranged at the top of the micro diffusion structures 4, the micro diffusion structures 4 are provided with four backlight stripes 6, the four backlight stripes 6 are connected end to end, the top and the bottom of the four backlight stripes are respectively connected with the first PC plate 3 and the second PC plate 5, a diffusion thin film layer 7 is arranged at the top of the second PC plate 5, the first PC plate 3 and the second PC plate 5 are obtained by uniformly mixing PC particles, rutile titanium dioxide and organic silicon micro powder and performing extrusion molding, wherein the mass ratio of the PC particles, the rutile titanium dioxide and the organic silicon micro powder is 5:1: 1;

according to the PC diffusion plate, the first PC plate 3, the plurality of micro diffusion structures 4 and the second PC plate 5 are matched with one another, so that multi-level diffusion of incident light is formed, the diffusion effect of the incident light is improved, and the incident light is diffused more uniformly after being diffused for multiple times;

the first PC board 3 and the second PC board 5 are obtained by uniformly mixing PC particles, rutile titanium dioxide and organic silicon micro powder in a specific proportion and performing extrusion molding and compression molding, have excellent toughness and optical performance, have low thermal expansion rate and meet the market demand of increasingly higher requirements.

Further, after light passes through 3 diffuser plates of first PC board, miniature diffusion structure 4 can reflect and refract light once more, changes the propagation of light reverse for the light incident angle who gets into second PC board 5 is various, and miniature diffusion structure 4 is two-layer multiaspect terrace with edge body and the not coplane in side of two-layer terrace with edge body, more does benefit to the even propagation of light.

Further, the inner groovy 8 has all been seted up at the top of first PC board 3 and between being located two adjacent miniature diffusion structures 4, and the inner wall of inner groovy 8 is honeycomb prism structure, and when 3 diffusion light of first PC board, part light carries out the multi-angle transmission because of the honeycomb prism structure in the inner groovy 8 to reflect and spread once more through miniature diffusion structures 4, make light direction of propagation more various, more be favorable to light evenly spread.

Wherein, evenly distributed's concave point 9 is seted up to the bottom on leaded light layer 2, sets up evenly distributed's concave point 9 through the surface at leaded light layer 2, and concave point 9 can form dull polish effect on the surface of leaded light layer 2 to concave point 9 can obtain promoting to the refraction diffusion performance of light.

The transparent substrate 1 is an acrylic plate or transparent glass.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. A PC diffuser plate, characterized in that: including transparent substrate (1), the bottom of transparent substrate (1) sets up leaded light layer (2), the top of transparent substrate (1) is provided with first PC board (3), the top of first PC board (3) is provided with evenly distributed's miniature diffusion structure (4), the top of miniature diffusion structure (4) is provided with second PC board (5), miniature diffusion structure (4) are provided with four back of the body striations (6), four back of the body striations (6) end to end connection and top, bottom are connected with first PC board (3) and second PC board (5) respectively, second PC board (5) top is provided with diffusion thin layer (7), first PC board (3) and second PC board (5) are through PC particle, rutile titanium white powder and organosilicon miropowder misce and through extrusion molding press forming and obtain.

2. The PC diffuser plate of claim 1 wherein: the micro diffusion structure (4) is two layers of multi-surface frustum bodies, and the side surfaces of the two layers of frustum bodies are not coplanar.

3. The PC diffuser plate of claim 1 wherein: inner groovy (8) have all been seted up at the top of first PC board (3) and between being located two adjacent miniature diffusion structures (4), the inner wall of inner groovy (8) is honeycomb prism structure.

4. The PC diffuser plate of claim 4 wherein: the mass ratio of the PC particles to the rutile titanium dioxide to the organic silicon micro powder is 5:1: 1.

5. The PC diffuser plate of claim 1 wherein: the transparent substrate (1) is an acrylic plate or transparent glass.

6. The PC diffuser plate of claim 1 wherein: the bottom of the light guide layer (2) is provided with uniformly distributed concave points (9).