Invention Grant
- Patent Title: Liquid crystal panel and liquid crystal display apparatus
- Patent Title (中): 液晶面板和液晶显示装置
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Application No.: US12089672Application Date: 2006-11-16
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Publication No.: US08395732B2Publication Date: 2013-03-12
- Inventor: Shuusaku Nakano , Takeharu Kitagawa
- Applicant: Shuusaku Nakano , Takeharu Kitagawa
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2005-342426 20051128
- International Application: PCT/JP2006/322834 WO 20061116
- International Announcement: WO2005/060875 WO 20070531
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a first polarizer placed on one side of the liquid crystal cell; a second polarizer placed on another side of the liquid crystal cell; a biaxial optical element placed between the liquid crystal cell and the first polarizer; and a negative C plate placed between the second polarizer and the biaxial optical element. A direction of an absorption axis of the first polarizer is substantially perpendicular to a direction of an absorption axis of the second polarizer. A refractive index ellipsoid of the biaxial optical element has a relationship of nx>nz>ny and a direction of a slow axis of the biaxial optical element is substantially parallel to the direction of the absorption axis of the first polarizer. A refractive index ellipsoid of the negative C plate has a relationship of nx=ny>nz. A wavelength dispersion value (D1) of the biaxial optical element and a wavelength dispersion value (D2) of the negative C plate satisfy a relationship of D1≧D2.
Public/Granted literature
- US20090231528A1 LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY APPARATUS Public/Granted day:2009-09-17
Information query
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