Data driver circuits for a display in which a data current...

Details Data driver circuits for a display in which a data current... Data driver circuits for a display in which a data current...

2006-07-14

2011-10-25

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

Reexamination Certificate

active

08044977

ABSTRACT:
A data driver for a display includes a reference current generator that is configured to generate L gray scale reference currents, the L gray scale reference currents being associated with non-zero gray scale levels, a gamma selection module that is configured to select M gamma reference currents from the L gray scale reference currents responsive to a gamma signal, a gamma voltage generator that is configured to generate a zero gray scale level gamma reference voltage, and a data current generator that is configured to generate a data current responsive to a selected one of the M gamma reference currents or the zero gray scale level gamma reference voltage responsive to a color signal.

REFERENCES:
patent: 5119086 (1992-06-01), Nishioka et al.
patent: 6331844 (2001-12-01), Okumura et al.
patent: 6344857 (2002-02-01), Matono et al.
patent: 7023458 (2006-04-01), Kudo et al.
patent: 2003/0080934 (2003-05-01), Ishiyama
patent: 2003/0214522 (2003-11-01), Kageyama et al.
patent: 1614662 (2005-05-01), None
First Office Action corresponding to Chinese Patent Application No. 200610115559 dated Dec. 4, 2009; 6 pages.

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