发明授权
- 专利标题: Method for producing vertical alignment liquid crystal display
- 专利标题(中): 垂直取向液晶显示器的制造方法
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申请号: US12860187申请日: 2010-08-20
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公开(公告)号: US07880840B2公开(公告)日: 2011-02-01
- 发明人: Toshiaki Shibue , Makoto Honda , Nobuo Kubo , Noriyasu Kuzuhara , Hiroki Umeda , Sota Kawakami , Takatoshi Yajima
- 申请人: Toshiaki Shibue , Makoto Honda , Nobuo Kubo , Noriyasu Kuzuhara , Hiroki Umeda , Sota Kawakami , Takatoshi Yajima
- 申请人地址: JP Tokyo
- 专利权人: Konica Corporation, A Corporation of Japan
- 当前专利权人: Konica Corporation, A Corporation of Japan
- 当前专利权人地址: JP Tokyo
- 代理机构: Lucas & Mercanti, LLP
- 优先权: JP11-299901 19991021; JP11-316958 19991108
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335
摘要:
The method to produce the vertical alignment type liquid crystal display employs treating an optical film comprising of cellulous ester with an aqueous solution of sodium hydroxide to prepare an alkali-treated optical film; immersing a polyvinyl alcohol film in an aqueous solution containing iodine and boric acid; stretching the polyvinyl alcohol film to prepare a polarizing film; adhering the alkali-treated optical film onto both surfaces of the polarizing film to prepare a polarizing plate; and providing the polarizing plate on both surfaces of a vertical alignment type liquid crystal cell to providing the vertical alignment type liquid crystal display. At least one of the optical film has a retardation value (Rt value) in the thickness direction of from 60 to 300 nm, Rt=[(nx+ny)/2−nz]×d.
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