Liquid crystal display drive with reduced power consumption

Details Liquid crystal display drive with reduced power consumption Liquid crystal display drive with reduced power consumption

1984-09-07

1987-03-17

Brigance, Gerald L.

Communications: electrical

Continuously variable indicating

With meter reading

340811, 340784, G09G 336

Patent

active

046511490

ABSTRACT:
An active matrix liquid crystal display is provided with one switching transistor connected to each display element. A separate drive circuit is connected to each column of the matrix, each such drive circuit incorporating a buffer circuit which is constructed of an output transistor and three separate switching elements. The buffer circuit transfers a sample of a data input signals to the respective column while requiring reduced power over conventional drivers.

REFERENCES:
patent: 4099073 (1978-07-01), Hashimoto et al.
patent: 4395708 (1983-07-01), Lloyd
patent: 4471347 (1984-09-01), Nakazawa et al.
patent: 4529890 (1985-07-01), Kobayashi et al.
patent: 4532506 (1985-07-01), Kitazina et al.

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