Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2011-07-19
2011-07-19
Healy, Brian M. (Department: 2883)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S117000, C349S118000
Reexamination Certificate
active
07982830
ABSTRACT:
The liquid crystal panel of the invention can restrain coloration following a change in the viewing angle when black is displayed, and can be produced into a relatively thin form. This panel has a liquid crystal cell20having a color filter having individual blue, green and red regions, a first polarizer10formed on one side of the cell20, a second polarizer40formed on the other side of the cell20, and a compensation layer30arranged between the first and second polarizers10and40. The compensation layer30has an optical characteristic that the layer gives a larger retardation for a longer wavelength, and the cell20has a liquid crystal layer in a vertical alignment mode, and the thickness direction retardation values Rth(B), Rth(G) and Rth(R) of the liquid crystal cell to light transmitted through the individual color regions in the liquid crystal cell20satisfy: |Rth(B)|<|Rth(G)|<|Rth(R)|.
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International Search Report of PCT/JP2007/058502, date of mailing May 22, 2007.
Takeda Kentarou
Yoshimi Hiroyuki
El-Shammaa Mary A
Healy Brian M.
Nitto Denko Corporation
Westerman Hattori Daniels & Adrian LLP
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