Color filter with retardation layer and liquid crystal display

Details Color filter with retardation layer and liquid crystal display Color filter with retardation layer and liquid crystal display

2005-09-08

2009-02-03

Wong, Tina M (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S117000, C349S118000, C349S119000, C349S129000, C349S187000

Reexamination Certificate

active

07486352

ABSTRACT:
The main object of the present invention is to provide a colour filter with a retardation layer, capable of minimizing light leakage even in the case the visual angle is large in the black display state, for a liquid crystal display. The present invention achieves the object by providing a colour filter with a retardation layer comprising a substrate, a colour layer formed on the substrate, being arranged in a plurality of rows having different thicknesses according to each colour, a first retardation layer formed on the colour layer, made of a liquid crystalline polymer, having its optic axis perpendicular to a plane of the substrate so as to function as a C plate, and a second retardation layer the colour layer, wherein the optic axis of the second retardation layer is arranged parallel to the plane of the substrate so as to function as a positive Aplate with positive refractive index anisotropy, and the refractive index anisotropy of the second retardation layer in the visible light range decreases at shorter wavelengths inverse dispersion characteristics.

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patent: 7330232 (2008-02-01), Jeon et al.
patent: 2004/0156001 (2004-08-01), Moriya
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patent: 1 118 885 (2001-07-01), None
patent: 10-153802 (1998-06-01), None
patent: 2003-315550 (2003-11-01), None
patent: WO 2004/068225 (2004-08-01), None

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