Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2011-01-18
2011-01-18
Pak, Sung H (Department: 2874)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07872714
ABSTRACT:
The present invention provides a liquid crystal cell with a color filter having a transparent substrate and a color filter, where the retardation value Rth(B), Rth(G) and Rth(R) in the thickness direction, which is represented by the following formula (1) in the blue region, the green region and the red region of the color filter, satisfy the following formula (2) or (3):in-line-formulae description="In-line Formulae" end="lead"?Rth=[{(nx+ny)/2}−nz]×d Formula (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Rth(B)>Rth(G)>Rth(R) Formula (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Rth(B)<Rth(G)<Rth(R) Formula (3)in-line-formulae description="In-line Formulae" end="tail"?In the liquid crystal cell with a color filter according to the present invention, change in color due to leaking of light in a state of black display can be prevented, and an excellent image can be displayed with a wide angle of visibility.
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Miyatake Minoru
Takeda Kentarou
Umemoto Seiji
Nitto Denko Corporation
Pak Sung H
Westerman Hattori Daniels & Adrian LLP
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