针对LCD显示屏温度适应性差、可视角度小、LCD的通用驱动电路实现的对比度较低等缺点, 采用OLED作为显示器件, 设计并实现了一种使用FPGA驱动OLED的显示系统。采用PIC16F690单片机作为微处理器控制整机时序, 利用FPGA进行视频信号处理, 完成格式转换、色空间处理以及隔行转逐行操作, 最终实现驱动显示。系统的测试结果表明, 该方案不仅能显著提高画面对比度, 而且能稳定显示监控图像, 为后继功能的拓展提供了平台。

Considering narrow temperature and viewpoint of LCD for most portable display system, OLED is used as display device. Focusing on the problem of low contrast of generic driver method for portable display system, a new driver based on FPGA is introduced which can improve the flexibility of the system. As the MCU, PIC16F690 takes control of system sequence. While FPGA mainly handles video processing work, including color standard converting, color gamut dealing, interlaced video to progressive video. Results show that the contrast is improved dramatically, images displayed stably. The design provides a platform for future.