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本设计的小尺寸TFT-LCD驱动电路是从复合视频信号处理到LCD显示部分,以下总结了小尺寸液晶屏的硬件电路设计的技巧。先通过对液晶屏驱动所需的各个关键信号进行说明,并详解相应电路设计要求;接着介绍液晶屏参数初始化的软件编程要求,同时介绍初始化过程中容易遇到的一些技术问题。液晶屏接口有YUV格式和RGB格式,使用YUV接口进行快速设计。其中通过MCS-51单片机的控制来初始化320×3×240点阵的TFT-LCD屏,并以友达三寸屏A030DN05为例,给出了液晶屏驱动的具体设计方法。
The design of small-size TFT-LCD driver circuit from the composite video signal processing to the LCD display part, the following summary of the small size LCD screen hardware circuit design skills. First through the LCD driver for each key signal required to explain and explain the corresponding circuit design requirements; Then introduced the LCD screen parameter initialization software programming requirements, while introducing the initialization process easy to encounter some technical problems. LCD interface YUV format and RGB format, the use of YUV interface for rapid design. Which through the MCS-51 microcontroller to initialize the 320 × 3 × 240 dot matrix TFT-LCD screen, and the AUO three-inch screen A030DN05 as an example, given the specific LCD driver design.