四线触摸显现屏包罗两个阻性层。此中一层在屏♎幕的摆布边缘各有一条垂直总线，另外一层在屏幕的底部和顶部各有一条程度总线，见图4。为了在X轴标的目的停止丈量，将左边总线偏置为0V，右边总线偏置为VREF。将顶部或底部总线毗连到ADC，当顶层和底层相打仗时便可作一次丈量。

　　关键在于在Y轴标(biao)识重要性中止工(gong)作测量(liang)，将顶部系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)偏置为VREF，低部系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)偏置为0V。将ADC导出(chu)(chu)的(de)(de)端接(jie)左(zuo)边(bian)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)或左(zuo)边(bian)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)，当顶面与最底层相开战时(shi)便可(ke)对电(dian)阻值(zhi)中止工(gong)作测量(liang)。图5显现出(chu)(chu)出(chu)(chu)来出(chu)(chu)来了四线(xian)(xian)触(chu)模显现出(chu)(chu)出(chu)(chu)来出(chu)(chu)来屏在二层相开战时(shi)的(de)(de)减化模具。对四线(xian)(xian)触(chu)模显现出(chu)(chu)出(chu)(chu)来出(chu)(chu)来屏，最远大理想的(de)(de)毗连办法是将偏置为VREF的(de)(de)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)接(jie)ADC的(de)(de)正参(can)看导出(chu)(chu)的(de)(de)端，并将快速设置为0V的(de)(de)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)系(xi)统(tong)(tong)(tong)数(shu)(shu)(shu)(shu)据(ju)(ju)传输(shu)线(xian)(xian)接(jie)ADC的(𝓀de)(de)负参(can)看导出(chu)(chu)的(de)(de)端。