Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-10-16
2010-10-12
Osorio, Ricardo L (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S690000
Reexamination Certificate
active
07812799
ABSTRACT:
A display device capable of expressing gradations with improved accuracy is presented. The device includes: a switching thin film transistor (TFT) and a driving TFT on an insulating substrate; a first electrode electrically connected with the driving TFT; a light emitting layer; a second electrode that supplies a common voltage to the light emitting layer; and a data driver that supplies the switching TFT with a data voltage ranging from a first voltage to a second voltage. The first voltage, the second voltage and the common voltage satisfy the equations: 1) First voltage−common voltage−voltage dropped by light emitting layer=black voltage±0.1|black voltage−white voltage|; 2) Second voltage−common voltage−voltage dropped by light emitting layer=white voltage±0.1|black voltage−white voltage|. The black voltage and the white voltage refer to gate-source voltages (VGS) that express the lowest gradation and the highest gradation, respectively.
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Ko Chun-seok
Lee Baek-woon
Innovation Counsel LLP
Osorio Ricardo L
Samsung Electronics Co,. Ltd.
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