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首页> 外文期刊>Journal of display technology >A Pixel Structure Using Block Emission Driving Method for High Image Quality in Active Matrix Organic Light-Emitting Diode Displays
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A Pixel Structure Using Block Emission Driving Method for High Image Quality in Active Matrix Organic Light-Emitting Diode Displays

机译：有源矩阵有机发光二极管显示器中使用块发射驱动方法的像素结构，可实现高质量图像

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摘要

In this paper, we propose a pixel structure and timing diagram using the block emission (BE) driving method to improve the image quality of high-resolution active matrix organic light-emitting diode (AMOLED) displays. The proposed pixel structure reduces the boundary error pattern between blocks by adjusting the timing of the compensation (comp) signal for the threshold voltage variation. The test patterns, which include a pixel array and unit pixels, are designed for a 10-inch quadruple high-definition resolution format and are fabricated to verify the image quality of the AMOLED displays. The measurement results show that the emission current error at the boundary between blocks is reduced from +11% to less than ±1% by adjusting the timing of the comp signal. Also, the emission current error caused by the threshold voltage variation of the driving thin film transistors is reduced from ±8.36% to ±2.77% at a gray level of 175 by using the BE driving method. Therefore, the proposed pixel structure improves image quality in high-resolution AMOLED displays.
机译：在本文中，我们提出了一种使用块发射（BE）驱动方法的像素结构和时序图，以提高高分辨率有源矩阵有机发光二极管（AMOLED）显示器的图像质量。所提出的像素结构通过针对阈值电压变化调整补偿（补偿）信号的时序来减小块之间的边界误差图案。测试图案包括一个像素阵列和一个单位像素，设计用于10英寸四倍高清分辨率格式，并被制造用来验证AMOLED显示器的图像质量。测量结果表明，通过调整补偿信号的时序，块之间边界处的发射电流误差从+ 11％减小到小于±1％。另外，通过使用BE驱动方法，在175的灰度级下，由驱动薄膜晶体管的阈值电压变化引起的发射电流误差从±8.36％减小到±2.77％。因此，提出的像素结构提高了高分辨率AMOLED显示器的图像质量。

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