Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2003-11-07
2008-12-30
Awad, Amr (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S098000
Reexamination Certificate
active
07471286
ABSTRACT:
Circuits and methods for driving gates lines of a flat panel display, wherein gate driver circuit architectures provide compact designs that enable smaller chip sizes for gate driver ICs. In one aspect, a semiconductor integrated gate driver IC comprises a plurality of gate driver circuits, wherein each gate driver circuit drives a corresponding gate line of a display, and a level shifter circuit, for generating a precharge control signal for the gate driver circuits. Each gate driver circuit comprises a line decoder for decoding a gate line control signal and generating a decoded gate line control signal and a precharge circuit for precharging a gate driver turn-on voltage in response to the precharge control signal before activating the gate line. During a driving phase, the precharged gate driver turn-on voltage is discharged when the gate line is activated in response to the decoded gate line control signal, whereas the precharged gate driver turn-on voltage is maintained when the gate line is not activated in response to the decoded gate line control signal.
REFERENCES:
patent: 5291437 (1994-03-01), Rountree
patent: 6970161 (2005-11-01), Kashiwada
patent: 2002/0118158 (2002-08-01), Yamamoto et al.
Awad Amr
Pervan Michael
Samsung Electronics Co,. Ltd.
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