Display device

Details Display device Display device

1980-05-28

1983-05-10

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340767, G09G 322

Patent

active

043832563

ABSTRACT:
A large scale display device capable of displaying half tones composed of a display panel having a large number of display elements arranged in a matrix form with each element having a memory function. The overall range of an image signal is divided into a plurality of steps or levels. A first level signal is used to control the timing of turning on the display element while a second level signal is used to control the timing of turning off the display element so that the light emitting time period is made proportional to the amplitude of the image signal. Both the number of decisions required and the number of times of controlling the display elements are reduced over prior constructions so that various half tones can be readily displayed.

REFERENCES:
patent: 3906290 (1975-09-01), Kurahashi et al.
patent: 4006298 (1977-02-01), Fowler et al.
patent: 4100579 (1978-07-01), Ernstoff
patent: 4134132 (1979-01-01), Magos et al.

Affiliated with

Also associated with

Rating

Display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-528158