Color liquid crystal display device
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United States of America Patent
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-
Jun 1, 1993
Grant Date -
N/A
app pub date -
Nov 15, 1990
filing date -
Nov 20, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A color liquid crystal display device in which a color filter is provided over the entire surface of the glass substrate. In a first embodiment, display electrodes extend over a plurality of color filter sectors to form segment electrodes. In a second embodiment, the transmissivity of light passing through the liquid crystal layer can be varied in levels by making the display electrodes in two-layer, operating voltage on each of the electrodes independently, and varying in levels the amplitude of voltage applied on the liquid crystal layer by the display electrodes. In a third embodiment, the amount of light transmitted in the display area of a color filter sector is controlled by two or more display electrodes which divide up the display area.
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