Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-11-27
2009-11-03
Dinh, Duc Q (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C315S169300
Reexamination Certificate
active
07612747
ABSTRACT:
A display having voltage-driven organic light-emitting pixel circuits. Each pixel circuit includes an organic light-emitting diode, a data writing circuit, a capacitor, three transistors, and a switch. The pixel circuit can compensate the threshold voltage variations of low temperature poly silicon thin film transistors. This increases the stability of the voltage-driven organic light-emitting pixel circuits, improves the uniformity of the luminance of the display, and provides a larger aperture ratio for the pixels.
REFERENCES:
patent: 7057588 (2006-06-01), Asano et al.
patent: 7274345 (2007-09-01), Imamura et al.
Guo Hong-Ru
Huang Chien Hsiang
Tseng Ming-Chun
Chi Mei EL Corporation
Chi Mei Optoelectronics Corporation
Dinh Duc Q
Fish & Richardson P.C.
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