Drive system for an active matrix liquid crystal display panel h

Details Drive system for an active matrix liquid crystal display panel h Drive system for an active matrix liquid crystal display panel h

1986-03-13

1989-05-16

Miller, Stanley D.

Communications: electrical

Land vehicle alarms or indicators

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

340784, G02F 1133, G09G 336

Patent

active

048304662

ABSTRACT:
In an active matrix liquid crystal display panel, row electrodes are divided into two portions at the approximate center of the display panel, the left row electrode portion belonging to an odd number row electrode group, and the right row electrode portion to an even number row electrode group. One horizontal scanning is conducted for each pair of left and right row electrodes to write data signals in the display picture elements. The width of a pulse applied to each row electrode corresponds to one horizontal scanning period. There is a phase difference of about 1/2 the horizontal scanning period between the pulses for an odd number row electrode and an even number row electrode, thus minimizing the difference in a write period among the display picture elements in the lateral direction of the display panel.

REFERENCES:
patent: 4281324 (1981-07-01), Nonomura et al.
patent: 4356483 (1982-10-01), Fujita et al.
patent: 4651148 (1987-03-01), Takeda et al.
patent: 4724433 (1988-02-01), Inoue et al.
Advances in Image Pickup and Displays, vol. 4, Academic Press 1981, pp. 61-63.

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