Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-10-02
2007-10-02
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000, C315S169100
Reexamination Certificate
active
10734003
ABSTRACT:
In an exemplary embodiment of the present invention, there is provided a pixel circuit for a luminescent display, in which plural pixel circuits are formed in a plurality of pixels defined by a plurality of data lines and a plurality of scan lines. The pixel circuit includes: a luminescent element; a first capacitor; a first transistor having a gate electrode coupled to the first capacitor, and a first main electrode coupled to a power supply line; a first switch for diode-connecting the first transistor in response to a selection signal to charge the first capacitor with a voltage corresponding to a threshold voltage of the first transistor; a second transistor for transferring the data signal from the data lines in response to a selection signal; a second capacitor for storing a voltage corresponding to the data signal; and a second switch for isolating the second main electrode of the first transistor from the luminescent element during voltage-charging of the first capacitor in response to a control signal.
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Christie Parker & Hale LLP
Hjerpe Richard
Nguyen Kimnhung
Samsung SDI Co., Ltd
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