Liquid crystal display device and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11275274
APP PUB NO 20210041748A1
SERIAL NO

17077412

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Abstract

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The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.

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Patent Owner(s)

  • JAPAN DISPLAY INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaneko, Toshiki Chiba, JP 117 1533
Kunimatsu, Noboru Chiba, JP 147 812
Matsumori, Masaki Tokai, JP 55 501
Sonoda, Hidehiro Mobara, JP 138 750
Tomioka, Yasushi Mobara, JP 199 1627

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