基于FPGA的平板显示器件驱动电路的设计

介绍了一种基于FPGA的平板显示器件驱动电路的设计方法。在FPGA内部设计了数字GAMMA校正、时基校正、时钟发生器、锁相环、I2C控制等模块,替代了各个专用集成芯片的功能,用数字技术取代传统模拟技术实现电路各模块,简化了电路;能够完成平板显示器件显示时序及控制方面的要求且控制灵活;能驱动大部分的平板显示器件,通用性好;设计了丰富的扩展信号接口,FPGA外挂SDRAM可应用于更大规模的平板显示驱动,可移植性强。采用高分辨率液晶投影显示屏LCX029CPT来验证所设计的驱动电路,通过电路实现,显示出质量很好的图像。

Design of Driving Circuit for Flat Panel Display Based on FPGA

A design method of a driving circuit for flat panel display based on FPGA is introduced.Some circuit functions,such as digital gamma correction,time base correction,timing generator,phase-lock loop,I2C control,can be realized efficiently with FPGA instead of all the functions of integrated chips.The signal processing used digital way instead of traditional analog technology.So the circuit is simplified.It can fulfill the timing and control requirements and is versatile at contro1.This design can be universally used because it can drive most FPD,and can be well transplanted to larger scale FPD driving after extending the design with SDRAM and designing abundant extended signal interfaces.High resolution liquid crystal display projection LCX029CPT is used to verify the driving circuit,and the driving circuit realizes good display result.