LTPS-TFT Pixel Circuit to Compensate for OLED Luminance Degradation in Three-Dimensional AMOLED Display
LTPS-TFT Pixel Circuit to Compensate for OLED Luminance Degradation in Three-Dimensional AMOLED Display
复制标题
DOI：
10.1109/led.2012.2188270
复制
发表时间：
2012-05-01
影响因子：
4.9
通讯作者：
Tu, Chun-Da
中科院分区：
文献类型：
--
作者：
Lin, Chih-Lung;Chang, Wen-Yen;Tu, Chun-Da
提出了一种新的用于3D有源矩阵有机发光二极管（OLED）显示器的低温多晶硅薄膜晶体管像素电路及其基于240 Hz帧频同时发光的驱动方案。该电路可以补偿TFT的阈值电压偏差和电源线IR压降。此外，使用反馈结构减少了OLED亮度的劣化。OLED的亮度退化和阈值电压漂移之间的关系的测量结果证实了所提出的电路的亮度的稳定性。
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.