LTPS-TFT Pixel Circuit to Compensate for OLED Luminance Degradation in Three-Dimensional AMOLED Display

被引：42

作者：

Lin, Chih-Lung ^{[1
,2
]}

Chang, Wen-Yen ^{[1
]}

Hung, Chia-Che ^{[1
]}

Tu, Chun-Da ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 70101, Taiwan

来源：

IEEE ELECTRON DEVICE LETTERS | 2012年 / 33卷 / 05期

关键词：

Active-matrix organic light-emitting diode (OLED) (AMOLED); low-temperature polysilicon thin-film transistor (LTPS-TFT); three-dimensional (3-D);

D O I：

10.1109/LED.2012.2188270

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new low-temperature polysilicon thin-filmtransistor pixel circuit for 3-D active-matrix organic light-emitting diode (OLED) display and its driving scheme that is based on simultaneous emission at a frame rate of 240 Hz are proposed. The proposed circuit can compensate for the threshold voltage deviation of TFTs and power-line IR-drops. Moreover, the degradation of OLED luminance is reduced using a feedback structure. The measurement results of the relationship between the luminance degradation and the threshold voltage shift of the OLED confirmed the stability of the luminance of the proposed circuit.

引用

页码：700 / 702

页数：3

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