Drive circuit for operating electroluminescent display with enha

Details Drive circuit for operating electroluminescent display with enha Drive circuit for operating electroluminescent display with enha

1988-01-27

1989-06-06

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

3151693, G09G 330

Patent

active

048375667

ABSTRACT:
An improved drive circuit for operating an electroluminescent display includes a circuit for biasing column and row drivers to maximize the energization voltage for illuminated pixels without reducing the contrast of the display. Interface circuitry is also provided for detecting the beginning of valid data for each line to be displayed, checking the selected display mode of the line and adjusting the timing of a system clock to completely and uniformly display characters in the 40-column, 80-column or graphics display mode.

REFERENCES:
patent: 4123751 (1978-10-01), Gladstone et al.
patent: 4338598 (1982-07-01), Ohba et al.
patent: 4479120 (1984-10-01), Ohba et al.
patent: 4485379 (1984-11-01), Kinoshita et al.
patent: 4554539 (1985-11-01), Graves
patent: 4594589 (1986-06-01), Ohba et al.

Affiliated with

Also associated with

Rating

Drive circuit for operating electroluminescent display with enha does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive circuit for operating electroluminescent display with enha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive circuit for operating electroluminescent display with enha will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-42754