Capacitive load driving circuit including input selection circui

Details Capacitive load driving circuit including input selection circui Capacitive load driving circuit including input selection circui

1994-09-12

1997-04-22

Bayerl, Raymond J.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 99, 345100, 345104, 345 95, 307404, 327 94, 330253, G09G 336, G09G 334

Patent

active

056232799

ABSTRACT:
A capacitative load driving circuit is provided in a liquid crystal display device and has an input selection circuit having a wide and effective voltage range of an input signal. The driving circuit changes over through source or emitter followers formed by two types of conductivity, for detecting as to whether or not a potential of the input signal is in an input voltage range of a differential amplifier circuit constituting a voltage follower after selecting at least one input signal through any of source or emitter followers.

REFERENCES:
patent: 4555673 (1985-11-01), Huijsing et al.
patent: 5006739 (1991-04-01), Kimura et al.
patent: 5162670 (1992-11-01), Itakura et al.
patent: 5280199 (1994-01-01), Itakura
patent: 5440256 (1995-08-01), Erhart et al.
patent: 5440272 (1995-08-01), Orisaka et al.

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