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
CN111552015APending Publication Date: 2020-08-18苏州龙桥光电有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州龙桥光电有限公司
Publication Date
2020-08-18

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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.
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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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