Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-03-16
2008-05-06
Patel, Nitin I. (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000
Reexamination Certificate
active
07369113
ABSTRACT:
A driving device of a display device includes: a data signal line driving circuit including a shift register which has (i) multiple stages of flip-flops each of which operates in synchronism with a source clock signal and (ii) a level shifter for boosting the source clock signal whose amplitude is smaller than a driving voltage of each of the flip-flops so as to apply the driving voltage to the flip-flop, said data signal line driving circuit causing a sampling circuit to sample the image display data signal based on an output from the shift register so as to output the image display data signal to the data signal line; and control means for causing a frequency of the source clock signal in case of displaying an image to be higher than a frequency of the source clock signal in case of normal display in which multi-gradation display is performed in a full-color mode. Thus, it is possible to provide a driving device of a display device, a display device, and a driving method of the display device, whereby it is possible to reduce power consumption caused by an invalid current of the level shifter.
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Gyouten Seijirou
Murakami Yuhiehiroh
Takahashi Shinya
Washio Hajime
Yoshida Shigeto
Harness & Dickey & Pierce P.L.C.
Patel Nitin I.
Sharp Kabushiki Kaisha
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