Scratch-resistant brightness enhancement film

A brightening film, anti-scratch technology, applied in optics, instruments, optical components, etc., can solve the problems of high cost of elastic materials, loss of optical properties, poor optical effects, etc., to improve wear resistance, take into account optical functions, avoid The effect of adsorption

Pending Publication Date: 2020-08-18
苏州龙桥光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former makes the tip of the prism lose the optical benefits and optical properties, and when the radius of curvature of the dome is larger (the flat-top structure is an extreme case with an infinite radius of curvature, the disadvantages are the same), although the wear resistance is better, but the optical effect is better. Poor, and the more serious the adsorption phenomenon with other optical films on the upper layer, it will seriously affect the appearance uniformity of the display screen
The latter uses the type of resin material to achieve self-healing properties, but under the same refractive index requirements, the cost of elastic materials is often higher, and in high-end applications, when the refractive index is higher than 1.59, there is no suitable elastic resin to choose , only high refractive index hard resin materials can be used

Method used

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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, in order to achieve the purpose of the present invention, this embodiment provides a scratch-resistant brightness enhancement film, including a substrate 1, the outer surface of the upper end of the substrate 1 is provided with a prism layer 2, and the outer surface of the upper end of the prism layer 2 is A reflective layer 3 is provided on the surface, and a rough layer 4 is provided on the outer surface of the upper end of the reflective layer 3 .

[0024] Further, the substrate 1 is a transparent substrate, and the thickness of the substrate 1 is 15-300 μm.

[0025] Further, the material of the prism layer 2 is photocurable acrylic resin, and the optical function lost by the tip of the prism is compensated by the flat-top reflective structure.

[0026] Further, the roughness layer 4 can be embossed with photocurable resin or coated with a layer of diffusion particles, with a roughness range of Ra: 0.5-25 μm, which can avoid the adsorption...

Embodiment 2

[0028] Such as figure 2 As shown, in order to further optimize the implementation effect of the present invention, the rest are the same as in Example 1, except that two fixing blocks 5 are respectively arranged on the upper and lower sides of the anti-scratch and brightness-enhancing film. Positioning holes are arranged on the fixing block 5 . This embodiment facilitates the fixing and positioning of the anti-scratch brightness enhancing film through the fixing block and the positioning hole.

Embodiment 3

[0030] Such as image 3 As shown, in order to further optimize the implementation effect of the present invention, the rest are the same as in Embodiment 1, except that the reflective layer 3 includes a lower reflective layer 31 and an upper reflective layer 32, and the lower reflective layer 31 includes a lower reflective layer Layer body and filling layer, the upper reflection layer 32 includes the upper reflection layer body and the filling layer, the lower reflection layer 31, the upper reflection layer 32 are arranged on the upper end outer surface of the prism layer 2 from bottom to top in turn, and the lower reflection layer The body and the body of the upper reflection layer are alternately arranged. Wherein, the material of the lower reflective layer body and the upper reflective layer body is a metal layer, a silver-plated layer, an aluminum-plated layer or a TiO coating. 2 Filler white coating. In this embodiment, the upper and lower reflective layer bodies are ar...

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Abstract

The invention discloses a scratch-resistant brightness enhancement film. The film comprises a base material, a prism layer is arranged on the outer surface of the upper end of the base material, a reflecting layer is arranged on the outer surface of the upper end of the prism layer, and a rough layer is arranged on the outer surface of the upper end of the reflecting layer. According to the scratch-resistant brightness enhancement film, the base material is mainly made of a PET material, the thickness is 15 to 300 [mu]m. The prism layer adopts a flat-top microstructure, a reflecting layer is added to the flat top area, the invalid light source which originally passes through the flat top area is reflected to the backlight module reflector plate and then is recycled. When passing through the prism microstructure again, the recovered light can pass through the prism inclined plane effective area or be reflected again and recovered. The rough layer is additionally arranged on the flat topreverse side layer plane, the adsorption phenomenon between the plane structure and the upper layer optical film can be avoided, and therefore under the condition that the abrasion resistance of thebrightness enhancement film is improved, the optical function and adsorption avoiding can be achieved at the same time, and better use prospects are brought.

Description

technical field [0001] The invention relates to the technical field of brightness-enhancing films, in particular to a scratch-resistant brightness-enhancing film. Background technique [0002] Brightness-enhancing film refers to a film or sheet used in LCD backlight modules to improve the luminous efficiency of the entire backlight system. [0003] In the existing products, in order to solve the problem of scratch resistance of the brightness enhancement film, there are two directions. One is to change the sharp corners of the prism structure into rounded corners, and the other is to use soft resilient materials to make the prism microstructure. The former causes the tip of the prism to lose its optical benefits and optical properties. Moreover, when the radius of curvature of the dome is larger (the flat-top structure is an extreme example of an infinite radius of curvature, the disadvantages are the same), although the wear resistance is better, but the optical effect is b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/04G02B5/08G02B5/02G02B1/14
CPCG02B1/14G02B5/0226G02B5/045G02B5/085
Inventor 丁清华顾亮
Owner 苏州龙桥光电有限公司
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