Liquid crystal image display system

Details Liquid crystal image display system Liquid crystal image display system

1983-07-22

1986-02-18

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340805, 340811, 307360, G09G 336, G09G 300

Patent

active

045715840

ABSTRACT:
A liquid crystal display produces a still image derived from a video signal by use of a comparator and selected reference levels to derive the driving signal for the liquid crystal display array. The vertical and horizontal samples and timing pulses derived from the original video signal of the image to be displayed are stored in shift registers, respectively, and then read out into multiplexers for feeding to the liquid crystal display array. The multiplexers are analog gates that have connected thereto in addition to the shift register output signal a plurality of voltages derived from a voltage divider network that sets the level of the voltage applied across each liquid crystal device in the array. No analog-to-digital converter or multiple shift register and specialized switch combination are required and thus the operational margin or sensitivity of the liquid crystal display is not adversely affected and the driving circuit is relatively uncomplicated.

REFERENCES:
patent: 4006412 (1977-02-01), Campbell et al.
patent: 4127848 (1978-11-01), Shanks
patent: 4270118 (1981-05-01), Brokaw

Affiliated with

Also associated with

Rating

Liquid crystal image display system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1552532