System for driving a liquid crystal display panel

Details System for driving a liquid crystal display panel System for driving a liquid crystal display panel

1988-07-19

1989-10-03

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358236, 340784, H04N 570

Patent

active

048720593

ABSTRACT:
First and second driving pulses, which are different in shape, are alternately applied to each pixel of a liquid crystal matrix display panel. Each driving pulse comprises a high voltage portion and a low voltage portion. By changing the width of the high voltage portion, a half tone is obtained in a picture. The high voltage portion of the first driving pulse is formed along a leading edge of the pulse, and the high voltage portion of the second driving pulse is formed along a trailing edge of the pulse to offset capacitance noise caused by capacitive connections between data and scanning electrodes of the display panel.

REFERENCES:
patent: 4158860 (1979-06-01), Irie
patent: 4193095 (1980-03-01), Mizushima
patent: 4234821 (1980-11-01), Kako
patent: 4591902 (1986-03-01), Masubuchi
patent: 4602292 (1986-07-01), Togashi
patent: 4630122 (1986-12-01), Morokawa

Affiliated with

Also associated with

Rating

System for driving a liquid crystal display panel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for driving a liquid crystal display panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for driving a liquid crystal display panel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-667755