Multiple-tone display system
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United States of America Patent
Stats
-
May 3, 2005
Grant Date -
Nov 6, 2003
app pub date -
Apr 30, 2003
filing date -
Feb 26, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, the multiple-tone displays which are uniformly seen by the human eye can be realized.
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