US 6,982,688 B2
Driving apparatus for capacitive light emitting element display panel
Hideo Ochi, Tsurugashima (Japan); and Shinichi Ishizuka, Tsurugashima (Japan)
Assigned to Pioneer Corporation, Tokyo (Japan)
Filed on Jul. 30, 2002, as Appl. No. 10/206,948.
Claims priority of application No. 2001-236619 (JP), filed on Aug. 03, 2001.
Prior Publication US 2003/0025655 A1, Feb. 06, 2003
Int. Cl. G09G 3/34 (2006.01)
U.S. Cl. 345—82 7 Claims
OG exemplary drawing
 
1. A driving apparatus for a display panel including a plurality of drive lines and a plurality of scanning lines intersecting with said plurality of drive lines, a plurality of capacitive light emitting elements connected between said scanning lines and said drive lines at each of a plurality of intersecting positions by said drive lines and said scanning lines and having polarities, said driving apparatus comprising:
a controller for selecting one scanning line of said plurality of scanning lines in order at a predetermined timing to specify as a light emission drive line a drive line corresponding to a capacitive light emitting element driven to emit light on said one scanning line, of said plurality of drive lines;
a scanning device for supplying said one scanning line with a first predetermined potential, and supplying scanning lines other than said one scanning lines of said plurality of scanning lines with a second predetermined potential higher than said first predetermined potential; and
a driver for supplying said light emission drive line with a driving current to apply said capacitive light emitting element driven to emit light with a positive voltage equal to or higher than a light emission threshold voltage in a forward direction and supplying drive lines other than said light emission drive lines of said plurality of drive lines with a third predetermined potential higher than said first predetermined potential and lower than said light emission threshold voltage,
wherein said third predetermined potential is generated from a current discharge terminal of a voltage source connected to a predetermined load circuit for supplying a power supply voltage to said predetermined load circuit.