Huicheng Zhao
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Huicheng Zhao has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Bo Yu
School of Electrical Engineering, University of South China, China
2 shared publications - Hongyu He
School of Electronic Information and Electrical Engineering, Yangtze University, Jingzhou, China
2 shared publications - Hongzhen Chu
School of Electrical Engineering, University of South China, China
2 shared publications - Ning Wei
School of Electrical Engineering, University of South China, China
2 shared publications - Xinlin Wang
College of Mechanical Engineering, University of South China, Hengyang 421001, China
2 shared publications - Yuehua Li
Department of Oncology, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
2 shared publications
Latest Publications
- Open Access
- 20 October 2023
- Published by Association for Computing Machinery (ACM)
- p. 18-23
An a-IGZO TFT Pixel Circuit to Compensate Electrical Characteristics Variation and OLED Degradation
- 20 October 2023
- Published by Association for Computing Machinery (ACM)
- p. 18-23
Open AccessAn a-IGZO TFT Pixel Circuit to Compensate Electrical Characteristics Variation and OLED Degradation
- Open Access
- 20 October 2023
- Published by Association for Computing Machinery (ACM)
- p. 12-17
A 6T2C Pixel Circuit Compensating for TFT Electrical Characteristics Variations, Voltage Drop, and OLED Degradation
A voltage-programmed pixel circuit is presented for active-matrix organic light-emitting diode (AMOLED) displays. The circuit is made up by six p-type low temperature poly-silicon (LTPS) thin-film transistors (TFTs) and two capacitors (6T2C). In the extraction stage, the circuit extracts the driving TFT's threshold voltage and the power supply voltage. In the data input stage, the circuit generates a charging voltage, which is associated with the driving TFT's mobility and OLED's threshold voltage. Consequently, the pixel circuit not only compensates for the TFT's electrical characteristics variations, i.e., the threshold voltage and mobility variations, but also compensates for the voltage drop and the OLED degradation. The circuit simulation results show that the OLED current error rates (CERs) are lower than 7.13% when the threshold voltage varies ±0.5V, lower than 4.89% when the mobility varies ±30%, and lower than 8.92% when the voltage drop varies −0.5V.
- 20 October 2023
- Published by Association for Computing Machinery (ACM)
- p. 12-17
Open AccessA 6T2C Pixel Circuit Compensating for TFT Electrical Characteristics Variations, Voltage Drop, and OLED Degradation
A voltage-programmed pixel circuit is presented for active-matrix organic light-emitting diode (AMOLED) displays. The circuit is made up by six p-type low temperature poly-silicon (LTPS) thin-film transistors (TFTs) and two capacitors (6T2C). In the extraction stage, the circuit extracts the driving TFT's threshold voltage and the power supply voltage. In the data input stage, the circuit generates a charging voltage, which is associated with the driving TFT's mobility and OLED's threshold voltage. Consequently, the pixel circuit not only compensates for the TFT's electrical characteristics variations, i.e., the threshold voltage and mobility variations, but also compensates for the voltage drop and the OLED degradation. The circuit simulation results show that the OLED current error rates (CERs) are lower than 7.13% when the threshold voltage varies ±0.5V, lower than 4.89% when the mobility varies ±30%, and lower than 8.92% when the voltage drop varies −0.5V.