Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-09-05
1999-09-21
Mengistu, Amare
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345100, G09G 336
Patent
active
059560088
ABSTRACT:
A driver circuit for use with an active matrix display. The driver circuit has a shift register circuit of a redundant configuration and consists of a main circuit and a preliminary circuit. When the main circuit becomes defective, the operating circuit is automatically switched from the main circuit to the preliminary circuit without physically cutting the circuitry by a laser beam or the like. The driver circuit is composed of a main shift register circuit and a preliminary shift register circuit connected in parallel with the main shift register circuit. The output from the final stage of flip-flop circuit of the flip-flop circuits forming the main shift register circuit is compared with the output from a monitoring flip-flop circuit connected with the output of the final stage of flip-flop circuit. Thus, the output signals from the flip-flop circuits of the main shift register circuit are switched respectively to the output signals from the flip-flop circuits of the preliminary shift register circuit.
REFERENCES:
patent: 4851827 (1989-07-01), Nicholas
patent: 5038368 (1991-08-01), Lee
patent: 5063378 (1991-11-01), Roach
patent: 5111060 (1992-05-01), Asada
patent: 5173792 (1992-12-01), Matsueda
patent: 5465053 (1995-11-01), Edwards
Ishii Futoshi
Kawasaki Yuji
Manzo Edward D.
Mengistu Amare
Murphy Mark J.
Osorio Ricardo
Semiconductor Energy Laboratory Co.
LandOfFree
Driver circuit for active matrix display and method of operating does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driver circuit for active matrix display and method of operating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver circuit for active matrix display and method of operating will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-84572