Diffusion and brightness enhancement film and method for manufacturing same

A manufacturing method and diffusion membrane technology, applied in the direction of chemical instruments and methods, instruments, layered products, etc., can solve the problems of poor thermal stability, absorption, folding, etc., to reduce the number of membranes used, reduce manufacturing costs, and improve product quality. quality effect

CN103293575AInactive Publication Date: 2013-09-11ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL

14 Cites 32 Cited by

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
Publication Date: 2013-09-11
Estimated Expiration: Not applicable · inactive patent

Smart Images

Figure 1
Figure 2
Figure 3

Patent Text Reader

Abstract

The invention discloses a diffusion and brightness enhancement film and a method for manufacturing the same. The diffusion and brightness enhancement film comprises a diffusion film and a brightness enhancement layer. The brightness enhancement layer is positioned on the diffusion film, the diffusion film comprises one or a plurality of diffusion layers, each diffusion layer comprises a resin base material and light diffusing agents uniformly dispersed in the resin base material, an absolute value of the difference between a refractive index of each light diffusing agent and a refractive index of each resin base material ranges from 0.01 to 0.4, and the brightness enhancement layer comprises a plurality of microstructures which are arranged according to a linear structure or a nonlinear structure. The diffusion and brightness enhancement film and the method have the advantages that the diffusion and brightness enhancement film is manufactured by a novel process, various toxic solvents are omitted, and shortcomings of white stripes, folding, scratching, poor thermal stability and the like of a finished product are overcome; the brightness enhancement layer is compounded on the surface of the corresponding diffusion layer, and working procedures are simple; after the multifunctional optical film is applied to a backlight module, the service quantity of diaphragms can be reduced, and shortcomings of interference, scattering, absorption and the like when various diaphragms are used simultaneously can be overcome; the manufacturing cost of the diffusion and brightness enhancement film is reduced, and the quality of the diffusion and brightness enhancement film is improved.

Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of optical films, in particular to a diffusion brightening film and a manufacturing method thereof. Background technique

[0002] Liquid crystal display (LCD) has the advantages of low radiation, low energy and environmental protection, and soft picture, and has become the most widely used display device in the digital age today. The LCD panel itself does not have a light-emitting display function, and must rely on a backlight module. The performance of the backlight module not only directly affects the color and quality of LCD images, but also affects the thickness and energy consumption of the LCD. Therefore, the backlight module is one of the key components in the LCD and plays a role in the entire LCD. Role.

[0003] The backlight module is composed of light source, reflective film, light guide plate, diffusion film, brightness enhancement film and outer frame. The preparation of the above-mentioned o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More