Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1993-12-23
1996-12-17
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 42, G02F 11333, G02F 1136
Patent
active
055859518
ABSTRACT:
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.
REFERENCES:
patent: 5056895 (1991-10-01), Kahn
patent: 5365357 (1994-11-01), Ohgawara
patent: 5408345 (1995-04-01), Mitsui
patent: 5419991 (1995-05-01), Segawa
Hayashi Hisao
Kadota Hisashi
Nakamua Shinji
Noda Kazuhiro
Nguyen Tiep H.
Sikes William L.
Sony Corporation
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