Matrix driving method for electro-optical display device

Details Matrix driving method for electro-optical display device Matrix driving method for electro-optical display device

1979-07-13

1981-11-10

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

340784, 350332, G08B 536

Patent

active

043001378

ABSTRACT:
A matrix driving method for driving an electro-optical display device including digit and segment electrodes arranged in a matrix configuration, in which digit and segment drive signals are applied to digit and segment electrodes in such a manner that the digit drive signals applied to all the digit electrodes have potentials equal in level with each other during a prescribed time interval during which the potential of a first segment drive signal inducing a state of non-display at all the digit electrodes is equal to the potential of each of the digit drive signals. During the prescribed time intervals, the potential difference between a second segment drive signal inducing a state of display at one of the digit electrodes and a state of non-display at the other digit electrode and each of the digit drive signals is maintained in a first predetermined value whereby the root mean square value of the potential difference between the second segment drive signal and the digit drive signal applied to the other digit electrode is substantially equal to that of the potential difference between the first segment drive signal and each of the digit drive signals. During the prescribed time interval, further, the potential difference between a third segment drive signal inducing a state of display at all the digit electrodes and each of the digit drive signals is maintained in a second predetermined value whereby the root mean square value of the potential difference between the second segment drive signal and the digit drive signal applied to the one of the digit electrodes is substantially equal to that of the potential difference between the third segment drive signal and each of the digit drive signals.

REFERENCES:
patent: 3781863 (1973-12-01), Fujita
patent: 3922667 (1975-11-01), Ueda et al.
patent: 4019178 (1977-04-01), Hashimoto et al.
patent: 4038564 (1977-07-01), Hakata
patent: 4041481 (1977-08-01), Sato
patent: 4044346 (1977-08-01), Akahane et al.
patent: 4050064 (1977-09-01), Hashimoto et al.
patent: 4078374 (1978-03-01), Kondo
patent: 4091377 (1978-05-01), Shimoi
patent: 4110967 (1978-09-01), Fujita
patent: 4142182 (1979-02-01), Kmetz
patent: 4186395 (1980-01-01), Fujita et al.

Affiliated with

Also associated with

Rating

Matrix driving method for electro-optical 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 Matrix driving method for electro-optical display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Matrix driving method for electro-optical display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2364546