Invention Grant
- Patent Title: Driving circuit and organic electroluminescence display thereof
- Patent Title (中): 驱动电路及其有机电致发光显示器
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Application No.: US11645678Application Date: 2006-12-27
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Publication No.: US07920108B2Publication Date: 2011-04-05
- Inventor: Yong Sung Park
- Applicant: Yong Sung Park
- Applicant Address: KR Yongin
- Assignee: Samsung Mobile Display Co., Ltd.
- Current Assignee: Samsung Mobile Display Co., Ltd.
- Current Assignee Address: KR Yongin
- Agency: Stein McEwen, LLP
- Priority: KR10-2006-0050482 20060605
- Main IPC: G09G3/30
- IPC: G09G3/30

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.
Public/Granted literature
- US20070279341A1 Driving circuit and organic electroluminescence display thereof Public/Granted day:2007-12-06
Information query
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