Abstract: Aiming at common TFT-LCD controller existing the shortage of large volume and bad display effect, this paper designs an embedded TFT-LCD controller. It realizes a universal MCU interface by using double First In First Out(FIFO) circuits, solves the problem of conflict between reading and writing frame cached based on the Time Division Multiplexer(TDM) technology, produces control time sequence signal by using status shift mechanism, designs the modules of TFT-LCD controller by hierarchy. On ARM+FPGA hardware flat, simulation result shows that this controller has good display effect, fast response speed and strong universal property.

Key words: TFT-LCD controller, First In First Out(FIFO) circuit, Time Division Multiplexer(TDM) technology

摘要： 针对常见TFT-LCD控制器存在体积大、显示效果差的缺点，设计一种嵌入式TFT-LCD控制器。使用双先入先出电路实现通用的MCU接口，基于时分复用技术解决读写显示缓存的问题，利用状态转移机制产生控制时序信号，并对各功能模块进行层次化设计。在ARM+FPGA硬件平台上的仿真结果表明，该控制器显示效果好、响应速度快、通用性强。

关键词: TFT-LCD控制器, 先入先出电路, 时分复用技术

CLC Number: 

• TP393