Method and device for driving an electroluminescen

专利名称：Method and device for driving an

electroluminescence matrix display

发明人：Terho Harju申请号：US08/045163申请日：19930412公开号：US05451978A公开日：19950919

摘要：The invention concerns a method and device for driving an electroluminescencematrix display. According to the method succeeding images are formed on the display (1),whereby to form one image all the row electrodes (r1-r6) of the display are scannedthrough one by one with a constant voltage, and a column voltage corresponding to thedesired instantaneous combination of luminance levels is formed for the columnelectrodes (c1-c2) in synchronism with the scanning of the row electrodes (r1-r6).According to the invention a voltage corresponding to the average modulation voltage(AV) of the column electrodes (c1-c6) is connected to at least a part of the non-selectedrow electrodes (r1-r6) to capacitively raise the column electrodes (c1-c6) by the amountof the average modulation level, and only the required column electrodes (c1-c6) aredriven to the difference voltage in reference to the average modulation voltage (AV).

申请人：PLANAR INTERNATIONAL OY LTD.

代理机构：Lowe, Price, LeBlanc & Becker

更多信息请下载全文后查看