Multiple-tone display system

Details Multiple-tone display system Multiple-tone display system

1997-03-07

1998-07-28

Mengistu, Amare

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345147, 345100, G09G 336

Patent

active

057867984

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 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, multiple-tone displays which are uniformly seen by the human eye can be obtained.

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patent: 5491496 (1996-02-01), Tomiyasu
patent: 5495287 (1996-02-01), Kasai et al.
patent: 5610626 (1997-03-01), Kasai et al.

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