发明授权
- 专利标题： Display device
- 专利标题（中）： 显示设备
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申请号： US12891222申请日： 2010-09-27
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公开(公告)号： US09310641B2公开(公告)日： 2016-04-12
- 发明人: Yuji Egi , Tetsuji Ishitani , Takeshi Nishi
- 申请人： Yuji Egi , Tetsuji Ishitani , Takeshi Nishi
- 申请人地址： JP Atsugi-shi, Kanagawa-ken
- 专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址： JP Atsugi-shi, Kanagawa-ken
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2005-380220 20051228
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335
摘要：
A display device with a higher contrast ratio is provided. The display device is provided with stacked polarizing plates arranged displaced from a parallel nicol state. Moreover, in the display device, at least one of a pair of stacked polarizing plates is displaced from a parallel state. The pair of stacked polarizing plates is arranged in a cross nicol state. A retardation plate may be provided between the polarizing plate and the substrate. As a result, the contrast ratio can be increased.
公开/授权文献
- US20110013117A1 DISPLAY DEVICE 公开/授权日：2011-01-20
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