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    • 1. 发明申请
    • FLAT PANEL DISPLAY INSPECTION SYSTEM
    • 平板显示检测系统
    • WO1993019453A1
    • 1993-09-30
    • PCT/US1993002060
    • 1993-03-12
    • PHOTON DYNAMICS, INC.
    • PHOTON DYNAMICS, INC.CUMMINS, Robert, E.SCOTT, Daniel, H.HAWTHORNE, Jeffrey, A.
    • G09G03/36
    • G09G3/006G06F11/2221G09G3/20G09G3/36G09G2320/0233G09G2320/0285G09G2320/0693
    • An improved testing system (10) and method for testing a flat-panel display is disclosed herein. A display (11) is positioned under a high resolution camera (15) for detection of, for example, brightness uniformity across the display (11). Errors in the detected image due to aliasing are avoided in the present invention by incrementally shifting the displayed image relative to the camera (15) and detecting the displayed image at various shifted positions. A resulting accurate display can then be reconstructed by identifying those detector pixels (52) generating a maximum signal. A single image may then be reconstructed using only those detected maximum pixel signals. The reconstructed image will be free of aliasing. The reconstructed image may then be analyzed electronically, and any anomalies in the pixels (50, 70) forming the display panel (11) can then be accurately detected. Anomalies due to uneven brightness across the display (11) can be corrected by programming a memory chip (66) for the particular display panel (11) to permanently compensate the display driver (40) signals for each display pixel (50, 70) to eliminate such anomalies in the display (11). Other tests for viewing angles and chromaticity may also be performed.
    • 本文公开了一种改进的测试系统(10)和用于测试平板显示器的方法。 显示器(11)位于高分辨率相机(15)下方,用于检测例如显示器(11)的亮度均匀性。 在本发明中,通过对显示的图像相对于照相机(15)进行递增移位并在各种偏移的位置检测显示的图像,从而避免了由于混叠引起的检测到的图像中的错误。 然后可以通过识别生成最大信号的那些检测器像素(52)来重构所得到的精确显示。 然后可以仅使用那些检测到的最大像素信号来重构单个图像。 重建的图像将没有混叠。 然后可以电子地分析重建的图像,然后可以精确地检测到形成显示面板(11)的像素(50,70)中的任何异常。 可以通过编程用于特定显示面板(11)的存储芯片(66)来对每个显示像素(50,70)的显示驱动器(40)信号进行永久补偿,从而校正显示器(11)上的亮度不均匀导致的异常, 消除显示中的这种异常(11)。 也可以进行视角和色度的其它测试。