基于CAN总线的液晶触摸屏显示控制方法

LCD Touch Screen Display Control Method Based on CAN Bus

基于数据驱动的液晶触摸屏显示控制方法主要通过内部逻辑单元的点阵实现对屏幕内容的显示控制,由于显示数据逻辑较为简单,导致画面切换时间较长。对此,提出基于CAN总线的液晶触摸屏显示控制方法。选用CAN总线作为传输线路,对触摸屏的显示接口进行改装。规划网络指令数据的传输路径并细化灰度显示的控制逻辑。在实验中,对提出的方法进行了切换时间的验证,经实验分析证明,利用提出的方法对液晶触摸屏进行显示控制,画面切换时间较短。

The LCD touch screen display control method based on data drive mainly realizes the display control of the screen content through the dot matrix of the internal logic unit.Because the display data logic is relatively simple,the screen switching time is long.In this paper,a LCD touch screen display control method based on CAN bus is proposed.The CAN bus is selected as the transmission line,and the display interface of the touch screen is modified.Plan the transmission path of network instruction data and refine the control logic of gray display.In the experiment,the proposed method is verified for the switching time.The experimental analysis shows that the proposed method is used to display and control the LCD touch screen,and the screen switching time is short.