Power driving circuit of a thin film transistor liquid crystal d

Details Power driving circuit of a thin film transistor liquid crystal d Power driving circuit of a thin film transistor liquid crystal d

1995-06-07

1997-06-03

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327483, 327403, 327415, 327416, 327530, 327544, 327567, 345211, 345 98, G09G 336, H03K 301

Patent

active

056358652

ABSTRACT:
A power driving circuit of a thin film transistor liquid crystal display includes Darlington circuits for generating voltages corresponding to the gate driving voltages required in the displays. Analog switching circuits control the application of voltages used to form the Von and Voff driving waveforms, which have driving voltage levels generated from the Darlington circuits. The phasing of the driving waveforms is controlled by a phasing signal which is received by the analog switching circuits. The power driving circuit of the present invention consumes less power than conventional driving circuits.

REFERENCES:
patent: 5243333 (1993-09-01), Shiba et al.
patent: 5283565 (1994-02-01), Suzuki et al.

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