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Patent Searching and Data


Title:
DRIVER FOR DISPLAY DEVICE, DISPLAY DEVICE AND METHOD FOR DRIVING DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2005266177
Kind Code:
A
Abstract:

To provide a driver for a display device by which power consumption can be reduced by the reactive current of a level shifter, a display device and a method for driving the display device.

The driver for the display device comprises: a data signal line driving circuit provided with a shift register, which comprises a plurality of stages of flip flops to be driven synchronously with a source clock signal and a level shifter for boosting the source clock signal whose amplitude is smaller than that of driving voltage for the flip flops and impressing the boosted source clock signal to respective flip flops and can transmit an input pulse synchronously with the source clock, and capable of outputting image display data signals to a plurality of data signal lines; and a control circuit for increasing (Fig.(b)) the frequency of the source clock signal SCK larger than that of normal display (Fig.(a)) for performing multigradation display in a full color mode at the time of image display.


Inventors:
WASHIO HAJIME
TAKAHASHI SHINYA
MURAKAMI YUICHIRO
GYOTEN SEIJIRO
YOSHIDA SHIGETO
Application Number:
JP2004000077269
Publication Date:
September 29, 2005
Filing Date:
March 17, 2004
Export Citation:
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Assignee:
SHARP KK
International Classes:
G02F1/133; G09G3/20; G09G3/36; (IPC1-7): G09G3/36; G02F1/133; G09G3/20
Domestic Patent References:
JP2002297106A2002-10-11
JP2001307495A2001-11-02
JPH11184434A1999-07-09
JP2002014318A2002-01-18
JP2003248468A2003-09-05
JP2003162263A2003-06-06
JP2001343928A2001-12-14
JP2003131632A2003-05-09
Attorney, Agent or Firm:
特許業務法人原謙三国際特許事務所
原 謙三
木島 隆一
金子 一郎