Liquid crystal display method and apparatus capable of making mu

Details Liquid crystal display method and apparatus capable of making mu Liquid crystal display method and apparatus capable of making mu

1993-02-10

1996-12-10

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 94, G09G 336

Patent

active

055835309

ABSTRACT:
A liquid crystal display system capable of making a display of 2.sup.i+j (i, j: positive integers) kinds of tones display includes a frame rate control device for selecting one out of frame rate control data of 2.sup.j kinds in accordance with j-bit display data included in (i+j)-bit display data, i and j being positive integers, a multi-level tone pulse generator for generating display pulses of 2.sup.i +1 kinds including at least activation for display, inactivation for display, and intermediate display corresponding to an intermediate level, and a selection drive device for selecting a display pulse of one kind out of display pulses of 2.sup.i +1 kinds in accordance with the frame rate control data supplied from the frame rate control device and i-bit display data and applying the selected display pulse to a liquid crystal panel, the i-bit being different from the j-bit.

REFERENCES:
patent: 2743096 (1988-05-01), Wakai et al.
patent: 4725833 (1988-02-01), Nakamura
patent: 4808991 (1989-02-01), Tachiuchiu et al.
patent: 4827255 (1989-05-01), Ishii
patent: 5038139 (1991-08-01), Fujisawa et al.
patent: 5196839 (1993-03-01), Tohany et al.

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