发明授权
- 专利标题: Liquid-crystal panel of polymer dispersed type, method of manufacturing the same, and liquid-crystal display apparatus
- 专利标题(中): 聚合物分散型液晶面板及其制造方法以及液晶显示装置
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申请号: US09206131申请日: 1998-12-07
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公开(公告)号: US06246456B1公开(公告)日: 2001-06-12
- 发明人: Kazuo Inoue , Tsuyoshi Uemura
- 申请人: Kazuo Inoue , Tsuyoshi Uemura
- 优先权: JP5-330896 19931227; JP6-088191 19940426
- 主分类号: G02F11333
- IPC分类号: G02F11333
摘要:
A liquid-crystal panel comprises a pair of transparent glass substrates each being provided with an electrode. Between the glass substrates are disposed spacers for defining a space and a mixture of droplets of a liquid crystal having a mean diameter of 3.0 &mgr;m or less and of a photo-curing polymer. The edge portions of the glass substrates are sealed with a seal polymer. In curing the photo-curing polymer during the process of manufacturing the liquid-crystal panel, the dose of an ultraviolet ray is set to 500 mJ/cm2 or more so as to reduce the diameters of the droplets of the liquid crystal, thereby preventing light leakage in the state without a voltage applied and improving the contrast. If the spacers are colored, the effect of preventing light leakage is increased. If the spacers are subjected to a surface treatment for rejecting the liquid crystal or composed of a polymer material of the same type as that of the photo-curing polymer, variations in diameter of the droplets of the liquid crystal can be prevented. With the structure, it becomes possible to provide a liquid-crystal panel in which light leakage in the black mode is reduced and which presents uniform and high-contrast display of images.
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