This paper presents an on-line adjusting method for the contrast degree of LCD with touch panel by using the digital potentiometer. The structure of the syatem is also presented.

• 摘要根据液晶显示屏配用触摸屏的情况，提出一种基于触摸屏的用于液晶屏对比度调节的数字电位器电阻值的在线确定方法，并给出软硬件实现原理和运行结果。