Title: Drive device and drive method for light emitting display panel
Application Number: 200410048979 Application Date: 2004.06.11
Publication Number: 1573880 Publication Date: 2005.02.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09G3/20,G09G3/30
Applicant(s) Name: Pioneer Tohoku Corp. Address:
Inventor(s) Name:
Attorney & Agent: yang kai ye kaidong
Abstract:
     The present invention is to provide a drive device and a drive method of a self light emitting display panel which can dissolve at low cost a technical problem which occurs due to the provision of constant current sources in a lighting driving circuit of a display panel. A scan driver 3 and a data driver 10 set all scan lines K1 to Km and all data lines A1 to An arranged on the display panel 1 at the same electrical potential at a switching time of scan so that a reset operation for discharging electrical charges accumulated in parasitic capacitances of respective light emitting elements E11 to Enm is performed. Charge current which follows the reset operation, which is from a driving voltage source 4, which charges the parasitic capacitances of the light emitting elements in the non-scan state is supplied as a forward current to a light emitting element which is scanned and lit so that this light emitting element is driven to emit light, utilizing the driving voltage source 4.
Time: 11