Front plate of tn liquid crystal display device
AssigneesMgc Filsheet Co., Ltd., Mitsubishi Gas Chemical Company, Inc.
InventorsKoshi Koide, Osamu Kakinoki
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Abstract
The problem is to provide a front plate of a TN liquid crystal display device capable of reducing occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when the liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means are that the direction of the slow axis or the fast axis of a polycarbonate resin sheet is parallel to the lengthwise direction of a TN liquid crystal panel, and that retardation is not less than 5000 nm.
Claims11
A front plate of a TN liquid crystal display device comprising a polycarbonate resin sheet and using white LED as a light source of a backlight, wherein a direction of the slow axis or a fast axis of the polycarbonate resin sheet is parallel to a lengthwise direction of the TN liquid crystal panel, and retardation is not less than 5000 nm.
Dependencies are inferred from the claim text.