发明名称 |
Reflection type liquid crystal display device |
摘要 |
A reflection type liquid crystal display device having a wide viewing angle, and capable of assuring a light utilization factor at or above a certain value for bright display even when conditions of an external light are varied is provided. The reflection type liquid crystal display device comprises (a) a liquid crystal cell comprising an upper substrate, a lower substrate and a liquid crystal layer between the substrates,(b)a polarizing film provided in a side of the upper substrate in the liquid crystal cell, (c) light reflecting means provided in a side of the lower substrate in the liquid crystal cell; and (d) an optical member provided between the polarizing film and the liquid crystal cell, and having a retardation axis when it is viewed in the normal direction. An angle between an absorption axis of the polarizing film and the retardation axis of the optical member is within a range of about 88 DEG to about 92 DEG or about -2 DEG to about +2 DEG . A retardation value in relation to the normal direction of the optical member is within a range of about 50 nm to about 500 nm. |
申请公布号 |
EP0982623(A3) |
申请公布日期 |
2001.08.08 |
申请号 |
EP19990306365 |
申请日期 |
1999.08.12 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
YAMAGUCHI, HISANORI;SEKIME, TOMOAKI;IWAI, YOSHIO;OGAWA, TETSU |
分类号 |
G02F1/1347;G02F1/1335;G02F1/13363;G02F1/1343;G02F1/139 |
主分类号 |
G02F1/1347 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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