Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2005-12-22
2010-02-16
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S078000
Reexamination Certificate
active
07663616
ABSTRACT:
A data driving circuit for displaying an image with a desired brightness comprises: a current digital-analog converter for generating a gradation current corresponding to external data, and for receiving a first current corresponding to the gradation current from a pixel via a data line; a current control unit for receiving a pixel current from the pixel via the data line, and for selectively increasing and decreasing a level of the first current in accordance with the received pixel current; and a selection unit for selectively connecting the data line to either the current digital-analog converter or the current control unit. An organic light emitting diode and a method of driving same are similarly configured. With these configurations, an image is displayed with desired brightness.
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Choi Sang-Moo
Kim Hong-Kwon
Kwon Oh-Kyong
Bushnell , Esq. Robert E.
Hjerpe Richard
Samsung Mobile Display Co., Ltd.
Sheng Tom V
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