電容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)的(de)漂移問(wen)(wen)題(ti)。在(zai)(zai)觸(chu)(chu)(chu)摸(mo)屏(ping)產品中，電容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)是我們常用的(de)觸(chu)(chu)(chu)摸(mo)屏(ping)方式，那么，對于電容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)來說，其產品本身應(ying)用比較廣泛，但(dan)是也存(cun)在(zai)(zai)著(zhu)不少問(wen)(wen)題(ti)。而(er)且由于現在(zai)(zai)科技(ji)的(de)發展程度還無法完全解(jie)決觸(chu)(chu)(chu)摸(mo)屏(ping)產品在(zai)(zai)相關原理(li)上出(chu)現的(de)問(wen)(wen)題(ti)，所(suo)以對于這些問(wen)(wen)題(ti)，目前還是普遍存(cun)在(zai)(zai)的(de)。
在(zai)這里武漢公(gong)司要跟大家討論的(de)(de)(de)是(shi)關于電(dian)(dian)容觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏的(de)(de)(de)"漂(piao)移"問題，這個問題比較常見，也(ye)是(shi)我們在(zai)解(jie)決產品問題時主要考(kao)慮的(de)(de)(de)方面。 電(dian)(dian)容觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏的(de)(de)(de)漂(piao)移問題介紹！ 武漢觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏公(gong)司提示，電(dian)(dian)容觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏本身(shen)實際(ji)是(shi)一套精密(mi)的(de)(de)(de)漏電(dian)(dian)傳(chuan)感(gan)器，帶手套的(de)(de)(de)手不(bu)能觸(chu)摸(mo)(mo)(mo)(mo)(mo)，由于使用電(dian)(dian)容方式，導致有漂(piao)移現象。電(dian)(dian)容觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏和電(dian)(dian)阻觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏都(dou)是(shi)電(dian)(dian)原理工作方式，電(dian)(dian)工作方式對于多(duo)點觸(chu)摸(mo)(mo)(mo)(mo)(mo)，不(bu)管是(shi)多(duo)少點，也(ye)不(bu)管是(shi)連續的(de)(de)(de)還是(shi)不(bu)連續的(de)(de)(de)都(dou)是(shi)取(qu)多(duo)點觸(chu)摸(mo)(mo)(mo)(mo)(mo)的(de)(de)(de)中心點判斷，因(yin)為電(dian)(dian)流(liu)疊(die)加是(shi)分不(bu)出來誰(shui)是(shi)誰(shui)的(de)(de)(de)，沒有辦法。
但是(shi)(shi)(shi)(shi)，目(mu)(mu)前來說，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)仍(reng)然有不(bu)(bu)少問(wen)題存在。武漢公司信(xin)為，觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)目(mu)(mu)前的(de)(de)(de)(de)(de)(de)(de)(de)(de)透明導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料ITO--氧化金屬非(fei)(fei)常脆弱(ruo)，觸(chu)(chu)(chu)摸(mo)幾下就會損(sun)壞(huai)，還(huan)不(bu)(bu)能直(zhi)接(jie)用來作(zuo)工作(zuo)層。材料的(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題一(yi)(yi)時還(huan)難以(yi)解決(jue)，只好委曲求(qiu)全(quan)：在外部增加一(yi)(yi)層非(fei)(fei)常薄(bo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)堅硬玻璃，它(ta)顯(xian)然是(shi)(shi)(shi)(shi)不(bu)(bu)能導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，直(zhi)流(liu)是(shi)(shi)(shi)(shi)不(bu)(bu)行了(le)(le)，改用高(gao)頻(pin)交(jiao)流(liu)信(xin)號(hao)，靠(kao)人(ren)的(de)(de)(de)(de)(de)(de)(de)(de)(de)手指(zhi)頭（隔著薄(bo)玻璃）與工作(zuo)面形成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)耦合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)來吸走一(yi)(yi)個交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，這(zhe)就是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)屏(ping)(ping)"電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)"名字的(de)(de)(de)(de)(de)(de)(de)(de)(de)由來。 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)之所以(yi)出現(xian)"漂(piao)(piao)移(yi)"的(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題，是(shi)(shi)(shi)(shi)因(yin)為耦合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)方(fang)式是(shi)(shi)(shi)(shi)不(bu)(bu)穩(wen)(wen)定的(de)(de)(de)(de)(de)(de)(de)(de)(de)，它(ta)直(zhi)接(jie)受溫(wen)度、濕度、手指(zhi)濕潤(run)程(cheng)(cheng)度、人(ren)體體重、地面干(gan)(gan)燥(zao)程(cheng)(cheng)度影(ying)響(xiang)，受外界大(da)面積(ji)物體的(de)(de)(de)(de)(de)(de)(de)(de)(de)干(gan)(gan)擾(rao)也(ye)非(fei)(fei)常大(da)，帶來了(le)(le)不(bu)(bu)穩(wen)(wen)定的(de)(de)(de)(de)(de)(de)(de)(de)(de)結(jie)果，這(zhe)些(xie)都直(zhi)接(jie)違背了(le)(le)作(zuo)為觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)這(zhe)種坐標(biao)系統的(de)(de)(de)(de)(de)(de)(de)(de)(de)基本要(yao)求(qiu)，不(bu)(bu)可避免的(de)(de)(de)(de)(de)(de)(de)(de)(de)要(yao)產生漂(piao)(piao)移(yi)，有的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)欲(yu)求(qiu)通(tong)過(guo)25點(dian)校準(zhun)法(fa)(fa)甚至(zhi)96點(dian)校準(zhun)法(fa)(fa)來解決(jue)漂(piao)(piao)移(yi)問(wen)題，其(qi)(qi)實(shi)(shi)是(shi)(shi)(shi)(shi)不(bu)(bu)可能的(de)(de)(de)(de)(de)(de)(de)(de)(de)，漂(piao)(piao)移(yi)是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)工作(zuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)這(zhe)種方(fang)式決(jue)定的(de)(de)(de)(de)(de)(de)(de)(de)(de)，即使(shi)(shi)是(shi)(shi)(shi)(shi)在控制器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)單片程(cheng)(cheng)序上(shang)利用動態計(ji)算(suan)和經(jing)驗值(zhi)查表，也(ye)只能是(shi)(shi)(shi)(shi)治標(biao)不(bu)(bu)治本。 其(qi)(qi)實(shi)(shi)，多點(dian)校準(zhun)法(fa)(fa)最(zui)早(zao)是(shi)(shi)(shi)(shi)大(da)屏(ping)(ping)幕(mu)投影(ying)觸(chu)(chu)(chu)摸(mo)板(ban)使(shi)(shi)用的(de)(de)(de)(de)(de)(de)(de)(de)(de)方(fang)法(fa)(fa)，目(mu)(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)(shi)消除(chu)坐標(biao)對應的(de)(de)(de)(de)(de)(de)(de)(de)(de)線xing失(shi)真，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)線xing失(shi)真也(ye)非(fei)(fei)常厲害，主要(yao)是(shi)(shi)(shi)(shi)因(yin)為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)屏(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)計(ji)算(suan)建(jian)立(li)在四(si)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)量與觸(chu)(chu)(chu)摸(mo)點(dian)到四(si)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)(de)(de)(de)(de)距(ju)離成(cheng)比例的(de)(de)(de)(de)(de)(de)(de)(de)(de)理想狀態上(shang)，實(shi)(shi)際由于受環境(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)、線路寄生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)和不(bu)(bu)同人(ren)使(shi)(shi)用的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響(xiang)。
