Invention Grant
- Patent Title: Display device with stacked polarizers
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Application No.: US11669408Application Date: 2007-01-31
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Publication No.: US08189139B2Publication Date: 2012-05-29
- Inventor: Tetsuji Ishitani , Takeshi Nishi , Yuji Egi
- Applicant: Tetsuji Ishitani , Takeshi Nishi , Yuji Egi
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Fish & Richardson P.C.
- Priority: JP2006-026416 20060202
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
An object of the present invention is to provide a display device having a high contrast ratio by a simple and easy method. Another object of the present invention is to manufacture such a display device having a high contrast ratio at low cost. The present invention relates to a display device including a first substrate; a second substrate; a layer including a display element, wherein the layer including the display element is interposed between the first substrate and the second substrate; and stacked polarizers on the outer side of the first substrate or the second substrate. The stacked polarizers are arranged to be in a parallel Nicols state and the wavelength distributions of the extinction coefficients of the stacked polarizers are different from each other.
Public/Granted literature
- US08405800B2 Display device with stacked polarizers Public/Granted day:2013-03-26
Information query
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