基于FPGA的AMOLED驱动方案

Driving Scheme for AMOLED Based on FPGA

介绍了一种基于FPGA的驱动方案,为所研制的基于微晶硅TFT基板的17.8cm(7in)有源矩阵有机发光显示器(AMOLED)提供驱动。该驱动方案实现简单,无需外部缓存,降低了电路布线和系统控制的难度。另外,提出了一种屏幕与IC的连接方案,解决了LCD驱动IC与AMOLED不匹配问题。详细介绍了系统组成及FPGA内部各模块工作原理,给出了时序及控制信号仿真图及示波器的实测结果。结果表明,该设计方案可实现64级灰度的AMOLED动态视频显示。

This paper presents a driving scheme based on FPGA for the 17.8 cm（7 in） active matrix organic light emitting display（AMOLED） using μc-Si TFT technology.This scheme is easy to be implemented.It doesn＇t require external cache,and consequently the difficulty of PCB layout and system control is reduced.It presents a method connecting screen with IC to resolve the problem that it is not matching between AMOLED with LCD Driver IC.Architecture of the system and operating principle of each module within the FPGA are presented in detail.And the simulation results by computer and the results tested by oscillograph on the timing and controlling signals are provided.The results indicate this design can implement the dynamic video display on AMOLED with 64 gray scales.