Driving circuit for display device

Details Driving circuit for display device Driving circuit for display device

2007-02-13

2007-02-13

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S052000, C345S093000, C345S099000, C327S108000, C327S407000, C327S410000, C327S560000, C327S563000, C330S150000

Reexamination Certificate

active

10772600

ABSTRACT:
A driving circuit for driving a capacitive load promptly to a target voltage is to have a broad dynamic range and achieve a high accuracy output and saving in the surface area with low power dissipation. A first period and a second period are provided in one data driving period. During the first period, a transistor amplifier for driving the load for charging, with a setting drive voltage (V1), and a transistor amplifier for driving the load for discharging, with a setting drive voltage (V2), with V1<V2, are both enabled for actuation and, during the second period, the transistor amplifier performing either the driving for charging or the driving for discharging, and a constant current source, performing the reverse of the operation of the transistor amplifier, are actuated, for driving the load to the target voltage.

REFERENCES:
patent: 4077012 (1978-02-01), Iwamatsu
patent: 6879534 (2005-04-01), Perner et al.
patent: 9-130171 (1997-05-01), None
patent: 2001-284988 (2001-10-01), None
patent: 2002-55659 (2002-02-01), None
patent: 2003-22055 (2003-01-01), None

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