LCD Touch Screen Display Control Method Based on CAN Bus
孙文轩1SUN Wen-xuan;陈保同CHEN Bao-tong
(①中航航空电子有限公司,北京100086;
②航天信息股份有限公司涿州分公司,涿州072750 )
(①AVlC Avionics Co., Ltd., Beijing 100086,China ;②Aisino Zhuozhou Branch,Zhuozhou 072750,China )
摘要: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。
Abstract:'The LCD touch screen display control method based on data drive maimly realizes the display control of the screen contentthrough the dot matrix of the intemal logic unit. Because the display data logic is relatively simple, the screen switching time is long. In thispaper, a LCD touch screen display control method based on CAN bus is proposed. The CAN bus is selected as the transmission line, andthe display interface of the touch screen is modified.Plan the transmission path of network instuction data and refine the control logic ofgray -display. In the experiment, the proposed method is verified for the switching time. The experimental analysis shows that the proposedmethod is used to display and control the LCD touch screen,and the screen switching time is short.
关键词:CAN总线;液晶触摸屏;显示控制
Key words: CAN bus; LCD touch screen; display control
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