| Citation: |
Wang Huan, Wang Zhigong, Feng Jun, Li Wenyuan, Wang Rong, Miao Peng. A pixel circuit with reduced switching leakage for an organic light-emitting diode[J]. Journal of Semiconductors, 2012, 33(12): 125006. doi: 10.1088/1674-4926/33/12/125006
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Wang H, Wang Z G, Feng J, Li W Y, Wang R, Miao P. A pixel circuit with reduced switching leakage for an organic light-emitting diode[J]. J. Semicond., 2012, 33(12): 125006. doi: 10.1088/1674-4926/33/12/125006.
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A pixel circuit with reduced switching leakage for an organic light-emitting diode
DOI: 10.1088/1674-4926/33/12/125006
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Abstract
This paper presents a pixel circuit with reduced switching leakage for OLED microdisplays. A self-referenced feedback loop is designed to track the node voltages for leakage reduction during the holding period. A longer holding time using a smaller storage capacitor can be achieved using the leakage reduction technique. An experimental system based on a 60 × 80 pixel matrix is fabricated in a 0.35-μm CMOS process. The area of the pixel circuit is only 15 × 15 μm2. According to the measured results, the pixel circuit achieves a holding time of longer than 500 ms and the system exhibits a satisfied accuracy and linearity within a pixel current range from 100 pA to 3 nA.-
Keywords:
- pixel
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References
[1] [2] [3] [4] [5] [6] -
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