Patent
1990-01-24
1990-08-07
Miller, Stanley D.
350339R, G02F 1133
Patent
active
049462598
ABSTRACT:
A color liquid crystal display comprises a liquid crystal interposed between two transparent electrodes. The electrode on at least one side of the liquid crystal comprises a plurality of pixel electrodes, each pixel electrode defining the area of one pixel of the display. Two or more pixels together form a picture element of the color display. One pixel (a chromatic pixel) of each picture element has a color filter covering the pixel. The other pixel (an achromatic pixel) of each picture element has a translucent (noncolored) filter covering the pixel. The translucent filter also covers a peripheral region of each color pixel. The peripheral region of each chromatic pixel (which is covered by both the color filter and the translucent filter) forms a light shield to increase the contrast of the display. A transparent (noncolored) filter is provided over each achromatic pixel to adjust the overall thickness of the liquid crystal, so as to minimize light leakage at the achromatic pixels. By minimizing light leakage, high contrast is obtained.
REFERENCES:
patent: 2567713 (1951-09-01), Kaplan
patent: 4097128 (1978-06-01), Matsumoto et al.
patent: 4592623 (1986-06-01), Yamamoto et al.
patent: 4601546 (1986-06-01), Ohta
patent: 4712874 (1987-12-01), Sekimura et al.
patent: 4744639 (1988-05-01), Tsuboyama
patent: 4793691 (1988-12-01), Enomoto et al.
Kajimura Motoji
Matino Haruhiro
Oana Yasuhisa
Ueki Toshihiro
Grass Anita Pellman
International Business Machines - Corporation
Miller Stanley D.
Shay Bernard E.
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