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1前言液晶显示器(LCD)自上世纪70年代问世以来,现已得到广泛应用。其结构如图1所示。LCD板是由多层膜组合而成的。为了提高LCD的画面质量,必须采用光学薄膜,如为了提高辉度就需要采用增辉度膜、扩散膜等。在生产、加工、运输过程中,为了保护这些光学薄膜不被损伤,须在其表面粘贴一层保护膜。从图2可以看到,增辉度薄膜表面上有数十微米的凹凸度,扩散膜表面也有数微米的凹凸度。由于接触面积小,一般保护膜在这种表面上很难粘得牢,须有粘接性强的保护膜才行。日本积水化学工业公司的丰嶋克典等,对光学膜用的强粘附性保护膜的性能、压敏胶树脂的设计以及该公司新产品的性能进行了综合介绍。
1 Introduction Liquid crystal display (LCD) since the advent of the 70s of the last century, has now been widely used. The structure shown in Figure 1. LCD panel is composed of multi-layer film. In order to improve the picture quality of the LCD, an optical film must be used. For example, a brightness enhancement film, a diffusion film and the like are required to improve the brightness. In the production, processing, transport, in order to protect these optical films are not damaged, the surface must be affixed with a protective film. Can be seen from Figure 2, the brightness of the film surface roughness of dozens of microns, the diffusion film surface roughness of several microns. As the contact area is small, the general protective film on this surface is very difficult to stick firmly, there must be strong adhesive protective film Caixing. Japan’s Sekisui Chemical Industry Corporation abundance grams Code and so on the optical film with strong adhesive protective film performance, pressure-sensitive adhesive resin design and the company’s new product performance were introduced.