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Home LCD Liquid-crystal-display-including-pixel-electrode-S-designed-to-improve-viewing-characteristics

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 Liquid crystal display including pixel electrode (S) designed to improve viewing characteristics

Details
Inventors: Hirata, Mitsuaki; Mizushima, Shigeaki; Watanabe, Noriko;
Assignee: Sharp Kabushiki Kaisha (Osaka, JP)
Primary Examiner: Ton; Toan
Assistant Examiner:
Attorney, Agent or Firm: Nixon & Vanderhye P.C.

A liquid crystal display is described which includes a pair of transparent substrates disposed opposite each other sandwiching a liquid crystal layer therebetween, with a transparent electrode and an alignment film formed on the liquid crystal layer side of each of the substrates. The transparent electrodes disposed opposite each other in pairs are at two or more different spacings at least within one display area of a pixel.

DETAILED DESCRIPTION The liquid crystal display of this invention comprises a pair of transparent substrates disposed opposite each other sandwiching a liquid crystal layer therebetween, with a transparent electrode and an alignment film formed on the liquid crystal layer side of each of said substrates.
Said transparent electrodes disposed opposite each other in pairs are at two or more different spacings at least within one display area of a pixel.
In one embodiment of the present invention, bumps and depressions are formed, using a transparent photosensitive resin, between said transparent substrates and said transparent electrodes to provide two or more different spacings between said transparent electrodes.
In another embodiment of the present invention, bumps and depressions are formed using an inorganic film between said transparent substrates and said transparent electrodes to provide two or more different spacings between said transparent electrodes.
In still another embodiment of the present invention, a portion that provides two or more different spacings between said electrodes is formed extending over two or more pixels.
According to another aspect of the present invention, the liquid crystal display comprises a pair of transparent substrates sandwiching a liquid crystal layer therebetween, and a plurality of pixels with electrodes thereof provided on a side of each of said substrates that faces said liquid crystal layer.
A line-patterned insulating film is formed on at least one of said substrates in such a manner as to cover at least a part of a region corresponding to each of said pixels between said electrodes and said liquid crystal layer, said line-patterned insulating film being formed so that an average direction of direction taken over a longitudinal length of each individual line crosses substantially at right angles with an average direction of orienting directions of liquid crystal molecules projected on said substrate.
In another embodiment of the present invention, a second line-patterned insulating film made of the same material as said line-patterned insulating film is formed between adjacent lines of said line-patterned insulating film to a thickness smaller than a thickness of said line-patterned insulating film



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