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Title:
PLASMA DISPLAY APPARATUS AND METHOD FOR DRIVING PLASMA DISPLAY PANEL
Document Type and Number:
Japanese Patent JP2009069560
Kind Code:
A
Abstract:

To improve the display quality of images by stably generating maintenance discharge while reducing power consumption.

A plasma display apparatus includes an all-cell lighting rate detection circuit for detecting the rate of discharge cells to be turned on to all discharge cells in a display area of a plasma display panel as an all-cell lighting rate in each sub-field and a partial lighting rate detection circuit for detecting the rate of discharge cells to be turned on to discharge cells in each area as a partial lighting rate in each area and in each sub-field, by dividing the display area of the plasma display panel into a plurality of areas. In a maintenance period, at least one of a rising period for driving a power recovery circuit in order to raise a maintenance pulse and a falling period for driving the power recovery circuit in order to fall the maintenance pulse is controlled in accordance with the all-cell lighting rate outputted from the all-cell lighting rate detection circuit and the partial lighting rate output from the partial lighting rate detection circuit.


Inventors:
NOGUCHI NAOKI
SHOJI HIDEHIKO
TOMIOKA NAOYUKI
ORIGUCHI TAKAHIKO
Application Number:
JP2007238788A
Publication Date:
April 02, 2009
Filing Date:
September 14, 2007
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
G09G3/20; G09G3/28; G09G3/288; G09G3/291; G09G3/294; G09G3/296; G09G3/298; H04N5/66
Domestic Patent References:
JP2008309918A2008-12-25
JP2009020147A2009-01-29
JP2009069561A2009-04-02
JP2008309918A2008-12-25
JP2009020147A2009-01-29
JP2009069561A2009-04-02
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano