Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-09-19
2006-09-19
Liang, Regina (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000, C345S090000
Reexamination Certificate
active
07109952
ABSTRACT:
A driving transistor for outputting a current for driving an organic electroluminescent (EL) element is formed on a pixel circuit of an organic EL display. A first capacitor is coupled between a power supply voltage and a gate of the driving transistor, and a second capacitor is coupled between the gate and a scan line. First a voltage matched with a data current is stored in the first capacitor in response to a select signal from the scan line. The voltage of the first capacitor is changed by variation of the select signal's voltage level. A driving current is output from the transistor because of the changed voltage of the first capacitor, and the organic EL element emits light as a result of the driving current.
REFERENCES:
patent: 6091203 (2000-07-01), Kawashima et al.
patent: 6229506 (2001-05-01), Dawson et al.
patent: 2004/0239599 (2004-12-01), Koyama
H.C. Park & Associates PLC
Liang Regina
Samsung SDI & Co., Ltd.
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