发明公开
- 专利标题: LIQUID CRYSTAL DISPLAY
- 专利标题(中): FLÜSSIGKRISTALLANZEIGE
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申请号: EP08870767.4申请日: 2008-09-25
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公开(公告)号: EP2237103A1公开(公告)日: 2010-10-06
- 发明人: SAKAI, Akira , TSUDA, Kazuhiko
- 申请人: Sharp Kabushiki Kaisha
- 申请人地址: 22-22, Nagaike-cho Abeno-ku Osaka-shi, Osaka 545-8522 JP
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: 22-22, Nagaike-cho Abeno-ku Osaka-shi, Osaka 545-8522 JP
- 代理机构: Müller - Hoffmann & Partner
- 优先权: JP2008007278 20080116
- 国际公布: WO2009090778 20090723
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; G02B5/30 ; G02F1/13363
摘要:
The present invention provides a transflective liquid crystal display device which is produced by a simple process with minimum increase in the production cost and which achieves both high-quality reflective display and transmissive display. The present invention relates to a vertical alignment transflective liquid crystal display device for transmissive display and reflective display. The display device includes: a back-side polarizer; a liquid crystal cell; a viewing-side polarizer; a first retardation layer; and a second retardation layer. The liquid crystal cell includes a pair of substrates and a liquid crystal layer disposed between the pair of substrates. The viewing-side polarizer has an absorption axis orthogonal to an absorption axis of the back-side polarizer. The first retardation layer is disposed between the liquid crystal layer and the viewing-side polarizer at a transmissive display region and a reflective display region, satisfies 1.5 ≤ Nz ≤ 9.0, has an in-plane slow axis orthogonal to the absorption axis of the viewing-side polarizer, and satisfies 20 nm ≤ Re(550) ≤ 80 nm. The second retardation layer is disposed between the first retardation layer and the viewing-side polarizer at the reflective display region, and converts linearly polarized light incident from the viewing-side polarizer into circularly polarized light together with the first retardation layer when no voltage is applied.
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