Active-matrix substrate

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United States of America Patent

PATENT NO 5585951
SERIAL NO

08172644

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Abstract

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An active-matrix substrate has a layered structure in which an upper region including a plurality of pixel electrodes arranged in a matrix and a lower region including a plurality of thin film transistors for driving the individual pixel electrodes are overlapped on each other. A planarization layer is interposed between both of the substrates. An active-matrix liquid crystal display device includes a main substrate and a facing substrate which are disposed to face to each other at a specified interval. A liquid crystal layer having a specified thickness is held between both of the substrates. A device bus line area including a plurality of thin film transistor devices and bus lines is formed on the surface of the main substrate. A planarization layer is formed to embed the irregularities on the surface of the device bus line area. Pixel electrodes in a matrix are formed on the flat surface of the planarization layer. An interval dimension between the adjacent pixel electrodes is set to be larger than a thickness dimension B of the liquid crystal layer, so that the subsidiary lateral electric field is made smaller than the normal vertical electric field.

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Patent Owner(s)

  • SONY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Hisao Kanagawa, JP 60 1747
Kadota, Hisashi Kanagawa, JP 15 685
Nakamua, Shinji Tokyo, JP 1 273
Noda, Kazuhiro Kanagawa, JP 113 1462

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