A Single Driver Chip for Gray Scale Passive-Matrix OLED
A single driver chip for the 132×64-pixel passive-matrix OLED panel is presented. The developed driver chip has a 64-step gray scale control using PWM method and two-step voltage pre-charge technology to pre-charge the OLED pixels. It consists of a digital controller, a SRAM as display data memory, a DC-DC voltage converter, reference current generators, a pre-charge voltage generator, 64 common drivers and 132 segment drivers. The chip is a typical current-drive circuit. Power consumption of the whole chip and all pixels with a constant driver current 100uA is investigated by the Nanosim simulation. When all pixels displaying the highest gray scale, it is shown that the consumed power is about 340mW at 15V high voltage supply and 3.3V low voltage supply.
Ming Liu Chen Jia Zhiliang Chen
Institute of Microelectronics Tsinghua University Beijing 100084, P. R. China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
2193-2196
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）