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Patent Searching and Data


Title:
DISPLAY PANEL CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JP2006119450
Kind Code:
A
Abstract:

To suppress deterioration in display quality caused by environmental changes of a display panel.

The display panel control circuit CNT includes: a gate driver YD to sequentially drive a plurality of gate lines Y to conduct a plurality of switching elements W by each row: a source driver XD to output a pixel voltage to a plurality of source lines X while the switching elements W in the row are driven to conduct by the corresponding gate lines Y; and a compensation voltage generating circuit 6 to generate a compensation voltage to be applied on one end of an auxiliary capacitance Cs in one row so as to compensate changes in the pixel voltage induced when the switching elements W in each row apply the pixel voltage on the other end of pixels PX and the auxiliary capacitance Cs in one row and then return to a non-conduction state. In particular, the compensation voltage generating circuit 6 is constituted to regulate changes in the compensation voltage against environmental changes of a display panel DP.


Inventors:
ICHIYAMA IWANE
Application Number:
JP2004308305A
Publication Date:
May 11, 2006
Filing Date:
October 22, 2004
Export Citation:
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Assignee:
TOSHIBA MATSUSHITA DISPLAY TEC
International Classes:
G09G3/36; G02F1/133; G09G3/20
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Sadao Muramatsu
Ryo Hashimoto