P‐13: IGZO‐TFT Pixel Circuits Compensating Threshold Voltage and Mobility Variations in AMOLED Displays

P‐13: IGZO‐TFT Pixel Circuits Compensating Threshold Voltage and Mobility Variations in AMOLED Displays

This paper proposes two novel AMOLED pixel circuits for high‐quality AMOLED panels with the features of high refresh rate and high‐resolution: the 4T1C VPPC and the 6T2C VPPC. The proposed 4T1C pixel circuit can compensate for variation in threshold voltage of TFT, and simplify the working cycle of...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2021-05, Vol.52 (1), p.1100-1103
Hauptverfasser: Xie, Yingtao, Chen, Penglong, Cai, Kunlin, Jia, Shuyun, Yang, Chunyan, Jian, Huan, Weng, Jiaming
Format: Artikel
Sprache:eng
Schlagworte:
Active matrix displays
AMOLED
Circuits
IGZO TFT
Indium gallium zinc oxide
Organic light emitting diodes
Pixel Circuit
Pixels
Threshold voltage
Voltage-Programmed
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Zusammenfassung:This paper proposes two novel AMOLED pixel circuits for high‐quality AMOLED panels with the features of high refresh rate and high‐resolution: the 4T1C VPPC and the 6T2C VPPC. The proposed 4T1C pixel circuit can compensate for variation in threshold voltage of TFT, and simplify the working cycle of pixel circuit. The proposed 6T2C pixel circuit maintains the advantages of the 4T1C circuit and adds the compensation function for the mobility change of TFT.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.14885