Liquid crystal display device

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United States of America Patent

PATENT NO 9921440
SERIAL NO

15693564

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Abstract

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In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

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Patent Owner(s)

Patent OwnerAddress
JAPAN DISPLAY INCTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hyodo, Yosuke Tokyo, JP 69 218
Kunimatsu, Noboru Tokyo, JP 149 845
Sonoda, Hidehiro Tokyo, JP 142 779
Tomioka, Yasushi Tokyo, JP 218 1702

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