Display device
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United States of America Patent
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-
Jun 23, 1992
Issued Date -
N/A
app pub date -
Jun 1, 1990
filing date -
Sep 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a liquid crystal display, each pixel is formed of four separately energizable areas which have relative light outputs in the ratio 1:2:4:8 respectively, thereby allowing a range of 16 grey levels to be achieved by appropriate selection of areas. Each of the areas has a number of segments, which are spaced-apart but concentrically arranged, in order to have the same average position, so that different bit patterns cause the pixel to change brightness only, without any apparent positional change.
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Family
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Cited Art Landscape
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