Liquid crystal display device

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United States of America Patent

PATENT NO 12117679
APP PUB NO 20230236448A1
SERIAL NO

18097171

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Abstract

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Provided is a liquid crystal display device that can switch between the privacy mode and the public mode and achieve a high contrast ratio even during display in the privacy mode. The liquid crystal display panel includes: a liquid crystal panel; and a control circuit. The active matrix substrate sequentially includes a first substrate, a first electrode, a first insulating layer, and second electrodes each including a first linear electrode. The color filter substrate includes a second substrate, a black matrix, a color filter layer, a third electrode, and a fourth electrode which is disposed between the black matrix and the third electrode and to which constant voltage is applied. The third electrode includes second linear electrodes and overlaps a portion of the black matrix in a plan view. The control circuit switches between application of driving voltage and application of constant voltage to the third electrode.

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Patent Owner(s)

Patent OwnerAddress
SHARP DISPLAY TECHNOLOGY CORPORATION464 KOHGAWA SHIRAKI-CHO KAMEYAMA CITY MIE 5190198 ?5190198

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higashida, Shinpei Kameyama, JP 8 9
Murata, Koji Kameyama, JP 168 810
Sasaki, Takahiro Kameyama, JP 257 2945
Satoh, Takashi Kameyama, JP 128 1447
Shimada, Shinji Kameyama, JP 73 1238
Tsuchiya, Hiroshi Kameyama, JP 112 1175

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