亮度
AMOLED公司
像素
帧(网络)
灰度
计算机科学
补偿(心理学)
电子线路
电容
电压降
薄膜晶体管
计算机视觉
电压
电子工程
电气工程
材料科学
工程类
物理
光学
电信
有源矩阵
心理学
电极
图层(电子)
量子力学
精神分析
复合材料
作者
Shang-Yu Su,Xuan-Yong Lin,Feng-Ting Pai,Ching-Chun Lin
摘要
In this paper, a novel compensation algorithm is proposed for improving multi‐frame drop (MFD) on AMOLED display. The MFD phenomenon occurs as the image switching or sliding when the display with extremely low brightness, resulting in the color shift and distortion at the edge of moving objects. Because the current is too small and the emission time is too short at extremely low brightness, more than one frame is needed to alleviate the impact of the parasitic capacitance between the gate and drain node of driving TFT (DTFT), and the gradual changing of drain voltage (VD) causes the DTFT to move from the linear to saturation region, which also aggravates this phenomenon. This paper analyzes the MFD phenomenon based on the existing 7T1C pixel circuits, records the grayscale changes of multiple frames, and gives the different offsets at dropped frames. By experiment results, this method is not changing the pixel circuit, such as the 8T1C, which could compensate for the dropped frames for reducing MFD issues and is easily implemented in the display driver IC for many different OLED panels.
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