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本文介绍一种用于实现被动有机发光二极管矩阵(PM-OLED)高灰度显示的混合驱动方法。该方法基于电流型数模转换器和时空数字调制方法的混合驱动来实现整体屏幕的显示驱动。在该方法中,显示数据的低灰度权值由数模转换器完成调制,同时显示数据的高灰度权值由时空数字调制方法进行调制。该方法应用于128×128彩色PM-OLED可以驱动512级灰度显示。
This paper presents a hybrid driving method for high-gray-scale display of passive organic light-emitting diode (PM-OLED) matrix. The method is based on the hybrid driving of the current digital-to-analog converter and space-time digital modulation method to realize the overall screen display driving. In this method, the low gray scale value of the display data is modulated by the digital-to-analog converter and the high gray scale weight of the display data is modulated by the space-time digital modulation method. The method is applied to 128 × 128 color PM-OLED can drive 512 gray-scale display.