Color liquid crystal display with a shielding member being arranged between sealing member and display zone

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United States of America Patent

PATENT NO 6414733
SERIAL NO

09499153

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a color liquid crystal display in which a shielding member is disposed between a sealing member and a display zone to prevent the liquid crystal layer from being contaminated with liquid crystal-contaminants from the sealing member wherein the shielding member is formed of a material which does not adversely affect the liquid crystal layer. The color liquid crystal display comprises at least a color filter substrate provided with a colored layer with plural colors formed into a predetermined pattern in a display zone on a transparent substrate, a counter electrode substrate disposed opposite to and with a predetermined gap from the color filter substrate, a sealing member disposed outside of the display zone to seal the gap formed between both substrates, a liquid crystal layer formed by filling a liquid crystal material in the gap formed between both substrates and sealed by the sealing member and a shielding member disposed between the sealing member and the display zone and formed of a material which works such that the voltage retention and residual DC (.DELTA.E) of the liquid crystal material after the impurity-extraction treatment is 80% or more and 0.5 V or less respectively to prevent the liquid crystal material contained in the liquid crystal layer from being contaminated with contaminants from the sealing member.

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Patent Owner(s)

  • DAI NIPPON PRINTING CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Keizo Tokyo-to, JP 4 257
Kishimoto, Takehide Tokyo-to, JP 7 269
Nishimoto, Takashi Tokyo-to, JP 41 758
Yamagata, Hideaki Tokyo-to, JP 51 575

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