Multi-function composite optical membrane capable of replacing diffusion plate and manufacturing method thereof, and display screen

An optical film and multi-functional technology, applied in optics, optical components, and other household appliances, can solve problems such as increased manufacturing costs, uneven brightness, and light spots, and achieve the effects of saving costs and improving yields

Inactive Publication Date: 2015-09-02
NINGBO JIANGBEI EXCITON NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Several optical films are placed on the top of the diffusion plate, generally with: lower diffusion film + prism film + upper diffusion film, lower diffusion film + prism film + microlens film, lower diffusion film + prism film + DBEF and other structures, Due to the large size of the bac

Method used

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  • Multi-function composite optical membrane capable of replacing diffusion plate and manufacturing method thereof, and display screen
  • Multi-function composite optical membrane capable of replacing diffusion plate and manufacturing method thereof, and display screen
  • Multi-function composite optical membrane capable of replacing diffusion plate and manufacturing method thereof, and display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The structure of the composite optical film is:

[0044] Lower layer: diffusion film of double-sided light diffusion layer, middle layer: prism film, upper layer: microlens film (abbreviated as microlens film).

[0045] The diffusion film of the double-sided light-diffusing layer is a PET base material with a thickness of 250 μm, and the light-diffusing layer includes 100 parts by weight of polyurethane resin, 100 parts by weight of PMMA particles with a particle diameter of 15 μm, and 10 parts by weight of PMMA particles with a particle size of 15 μm. 1 μm TiO 2 Particles and double-sided light-diffusing layers have the same composition. The prism strips of the prism film are regular straight lines with a height of 50 μm and an angle of 90°. The material of the prism layer is acrylic resin, and the base material is PET with a thickness of 250 μm. The structure of the microlens film is a hemispherical structure, the radius of the hemispherical structure is 60 μm, the ...

Embodiment 2

[0047] The structure of the composite optical film is:

[0048] Lower layer: diffusion film with double-sided light diffusion layer, middle layer: diffusion film with one light diffusion layer and one anti-adhesion layer, upper layer: prism film

[0049] The diffusion film of the lower double-sided light diffusion layer is a PC substrate with a thickness of 250 μm, the lower surface light diffusion layer includes 100 parts by weight of polyurethane resin, 150 parts by weight of polystyrene particles with a particle size of 25 μm, and the upper surface light diffusion The layer includes 100 parts by weight of polyurethane resin and 10 parts by weight of polystyrene particles with a particle diameter of 25 μm. The diffusion layer of the middle layer is a PC substrate with a thickness of 250 μm, and the light diffusion layer on the upper surface includes 100 parts by weight of polyurethane resin, 20 parts by weight of polystyrene particles with a particle size of 15 μm, and 80 pa...

Embodiment 3

[0051] The structure of the composite optical film is:

[0052] Lower layer: Diffusion film of double-sided light diffusion layer, Middle layer: Two prism films perpendicular to the direction of the prism strips, Upper layer: Diffusion film of one light diffusion layer and one anti-adhesion layer.

[0053] The diffusion film of the lower double-sided light-diffusing layer is a PET base material with a thickness of 150 μm. The light-diffusing layer includes 100 parts by weight of polyurethane resin, 90 parts by weight of PMMA particles with a particle diameter of 25 μm, and 3 parts by weight of PMMA particles. TiO with a diameter of 1 μm 2 Particles and double-sided light-diffusing layers have the same composition. The prism film in the middle layer is two identical prism films up and down. When the two prism films are placed, the direction of the prism strips is vertical. The prism film is made of a PC base material with a thickness of 200 μm. °, the material of the prism la...

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Abstract

The invention relates to an optical film, especially to a multi-function composite optical membrane capable of replacing a diffusion plate and a manufacturing method thereof, and a display screen, thereby reducing the cost of the large-size backlight template and improving a yield and an optical effect. The multi-function composite optical membrane is composed of a lower layer, a middle layer, and an upper layer; and a diffusion membrane is arranged at the lower layer, a diffusion membrane or prism membrane is arranged at the middle layer, and a diffusion membrane, prism membrane or micro lens membrane is arranged at the upper layer; the lower layer, the middle layer, and the upper layer are combined together by adhesives; the top surface of the lower layer is combined with the middle layer and the top surface of the middle layer is combined with the upper layer. The composite optical membrane can replace the diffusion plate or other optical membrane plates in the large-size backlight module group, thereby saving the cost and improving the yield.

Description

technical field [0001] The invention relates to an optical film, in particular to a multifunctional composite optical film that can replace a diffuser plate, a manufacturing method thereof, and a display screen. Background technique [0002] As people's requirements for the visual effects of monitors and TVs are getting higher and higher, various manufacturers continue to introduce large-size TVs and display screens, such as 42, 45, and 49-inch LCD TVs are very popular, and 70-inch and even 100-inch LCD TVs are very popular. There are also manufacturers of TVs. For making the screen bigger, there are two important technical difficulties. One is to make the panel bigger, and the other is to make the backlight bigger. In particular, the screen panel itself is mainly made of glass, and the substrate needs to be filled with liquid crystal molecules, so The production process is relatively complicated. Currently, some panel factories can only mass-produce panels with a maximum s...

Claims

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Application Information

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IPC IPC(8): G02B5/02G02B5/04B32B7/12
CPCB32B7/12B32B2457/20G02B5/0226G02B5/0231
Inventor 崔钧马子盈李刚唐海江张彦
Owner NINGBO JIANGBEI EXCITON NEW MATERIAL TECH CO LTD
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