Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-04-05
2011-04-05
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000
Reexamination Certificate
active
07920108
ABSTRACT:
A driving circuit to decrease an error of a grey level voltage without affecting a voltage drop when a grey level signal of a D/A converter is generated in an analog switch, and an organic electroluminescence display using the same. The driving circuit includes first and second switches to select respective reference voltages corresponding to a data signal; resistor arrays to receive and distribute the respective reference voltages using at least two resistances to generate a grey level voltage; a third switch to select one resistor array in response to the data signal and transmit the reference voltages to the selected resistor array; a fourth switch to output the grey level voltage; a MUX circuit connected to the fourth switch to select a data line to transmit the grey level voltage; and a precharge circuit connected between the fourth switch and the data line to select one of the reference voltages to precharge the data line.
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Ma Calvin C
Samsung Mobile Display Co., Ltd.
Stein McEwen, LLP
Wang Quan-Zhen
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