Active matrix display screen permitting the display of gray leve

Details Active matrix display screen permitting the display of gray leve Active matrix display screen permitting the display of gray leve

1987-02-17

1989-06-20

Yusko, Donald J.

Communications: electrical

Land vehicle alarms or indicators

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

340805, G09G 320

Patent

active

048412945

ABSTRACT:
A single signal is produced, which includes a pedestal and a ramp. This signal is supplied to a column control circuit which transmits the voltage to each column for a time which can assume a number of discrete values between t.sub.1, the pedestal duration, and T.sub.L, the addressing time of one row. For t.sub.1, the black level is obtained, for T.sub.L the white level and between them, various gray levels.

REFERENCES:
patent: 4087792 (1978-05-01), Asars
patent: 4100579 (1978-07-01), Ernstoff
patent: 4193095 (1980-03-01), Mizushima
patent: 4427978 (1984-01-01), Williams
patent: 4427979 (1984-01-01), Clerc et al.
patent: 4554539 (1985-11-01), Graves
patent: 4635127 (1987-01-01), Togashi

Affiliated with

Also associated with

Rating

Active matrix display screen permitting the display of gray leve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active matrix display screen permitting the display of gray leve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active matrix display screen permitting the display of gray leve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-527738