電(dian)容觸(chu)(chu)摸(mo)屏(ping)(ping)的(de)(de)(de)漂移問(wen)(wen)題(ti)(ti)。在(zai)(zai)(zai)觸(chu)(chu)摸(mo)屏(ping)(ping)產品中，電(dian)容觸(chu)(chu)摸(mo)屏(ping)(ping)是(shi)我(wo)們常用(yong)的(de)(de)(de)觸(chu)(chu)摸(mo)屏(ping)(ping)方式，那么，對(dui)于(yu)電(dian)容觸(chu)(chu)摸(mo)屏(ping)(ping)來(lai)說，其產品本身應(ying)用(yong)比(bi)較廣泛，但(dan)是(shi)也存在(zai)(zai)(zai)著(zhu)不少(shao)問(wen)(wen)題(ti)(ti)。而且由(you)于(yu)現在(zai)(zai)(zai)科(ke)技的(de)(de)(de)發展程(cheng)度還無法完全解決觸(chu)(chu)摸(mo)屏(ping)(ping)產品在(zai)(zai)(zai)相關原(yuan)理(li)上出現的(de)(de)(de)問(wen)(wen)題(ti)(ti)，所以對(dui)于(yu)這些問(wen)(wen)題(ti)(ti)，目前還是(shi)普遍存在(zai)(zai)(zai)的(de)(de)(de)。
在這(zhe)里武漢(han)公司要(yao)跟大家討論的(de)(de)(de)是關于電(dian)(dian)(dian)(dian)(dian)容觸(chu)摸(mo)(mo)屏的(de)(de)(de)"漂(piao)移(yi)"問(wen)(wen)題，這(zhe)個(ge)問(wen)(wen)題比(bi)較常見，也是我們(men)在解(jie)決產品(pin)問(wen)(wen)題時主要(yao)考慮的(de)(de)(de)方面。 電(dian)(dian)(dian)(dian)(dian)容觸(chu)摸(mo)(mo)屏的(de)(de)(de)漂(piao)移(yi)問(wen)(wen)題介紹！ 武漢(han)觸(chu)摸(mo)(mo)屏公司提(ti)示，電(dian)(dian)(dian)(dian)(dian)容觸(chu)摸(mo)(mo)屏本身(shen)實際是一套(tao)精(jing)密的(de)(de)(de)漏電(dian)(dian)(dian)(dian)(dian)傳(chuan)感器，帶手(shou)套(tao)的(de)(de)(de)手(shou)不(bu)能觸(chu)摸(mo)(mo)，由于使用電(dian)(dian)(dian)(dian)(dian)容方式(shi)(shi)，導致有漂(piao)移(yi)現象。電(dian)(dian)(dian)(dian)(dian)容觸(chu)摸(mo)(mo)屏和電(dian)(dian)(dian)(dian)(dian)阻(zu)觸(chu)摸(mo)(mo)屏都(dou)是電(dian)(dian)(dian)(dian)(dian)原理工作(zuo)方式(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)工作(zuo)方式(shi)(shi)對(dui)于多(duo)(duo)點(dian)觸(chu)摸(mo)(mo)，不(bu)管(guan)是多(duo)(duo)少點(dian)，也不(bu)管(guan)是連續(xu)的(de)(de)(de)還是不(bu)連續(xu)的(de)(de)(de)都(dou)是取多(duo)(duo)點(dian)觸(chu)摸(mo)(mo)的(de)(de)(de)中心(xin)點(dian)判(pan)斷，因為電(dian)(dian)(dian)(dian)(dian)流疊加(jia)是分(fen)不(bu)出來誰是誰的(de)(de)(de)，沒有辦法(fa)。
但是(shi)，目(mu)(mu)前來說(shuo)，電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)仍然(ran)有(you)不(bu)(bu)(bu)(bu)少問(wen)題(ti)(ti)(ti)存在。武漢公司信(xin)為(wei)(wei)，觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)目(mu)(mu)前的(de)(de)(de)(de)透(tou)明導(dao)電(dian)(dian)(dian)(dian)材料ITO--氧化金屬非(fei)常(chang)脆弱，觸(chu)(chu)(chu)(chu)摸(mo)幾下就(jiu)會損(sun)壞，還不(bu)(bu)(bu)(bu)能(neng)直(zhi)接用來作工(gong)(gong)作層。材料的(de)(de)(de)(de)問(wen)題(ti)(ti)(ti)一時還難以解決(jue)，只(zhi)好委曲求(qiu)全：在外部增(zeng)加(jia)一層非(fei)常(chang)薄的(de)(de)(de)(de)堅硬(ying)玻(bo)璃(li)，它(ta)顯(xian)然(ran)是(shi)不(bu)(bu)(bu)(bu)能(neng)導(dao)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)，直(zhi)流(liu)(liu)(liu)是(shi)不(bu)(bu)(bu)(bu)行了，改(gai)用高頻交(jiao)流(liu)(liu)(liu)信(xin)號，靠(kao)人的(de)(de)(de)(de)手指頭（隔著薄玻(bo)璃(li)）與工(gong)(gong)作面(mian)形成(cheng)的(de)(de)(de)(de)耦合電(dian)(dian)(dian)(dian)容(rong)(rong)來吸(xi)走一個交(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，這(zhe)就(jiu)是(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)(ping)(ping)"電(dian)(dian)(dian)(dian)容(rong)(rong)"名字的(de)(de)(de)(de)由來。 電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)之所(suo)以出(chu)現"漂移(yi)(yi)"的(de)(de)(de)(de)問(wen)題(ti)(ti)(ti)，是(shi)因為(wei)(wei)耦合電(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)方式是(shi)不(bu)(bu)(bu)(bu)穩定的(de)(de)(de)(de)，它(ta)直(zhi)接受溫度(du)、濕度(du)、手指濕潤程(cheng)度(du)、人體體重(zhong)、地(di)面(mian)干燥程(cheng)度(du)影響，受外界(jie)大(da)面(mian)積物體的(de)(de)(de)(de)干擾也(ye)非(fei)常(chang)大(da)，帶來了不(bu)(bu)(bu)(bu)穩定的(de)(de)(de)(de)結果，這(zhe)些都直(zhi)接違(wei)背(bei)了作為(wei)(wei)觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)這(zhe)種(zhong)坐標系統(tong)的(de)(de)(de)(de)基本要(yao)求(qiu)，不(bu)(bu)(bu)(bu)可避免(mian)的(de)(de)(de)(de)要(yao)產生漂移(yi)(yi)，有(you)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)欲求(qiu)通過25點校準法(fa)甚至96點校準法(fa)來解決(jue)漂移(yi)(yi)問(wen)題(ti)(ti)(ti)，其實是(shi)不(bu)(bu)(bu)(bu)可能(neng)的(de)(de)(de)(de)，漂移(yi)(yi)是(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)工(gong)(gong)作的(de)(de)(de)(de)這(zhe)種(zhong)方式決(jue)定的(de)(de)(de)(de)，即使是(shi)在控制(zhi)器的(de)(de)(de)(de)單片程(cheng)序上利(li)用動態計算和經(jing)驗值查表，也(ye)只(zhi)能(neng)是(shi)治(zhi)標不(bu)(bu)(bu)(bu)治(zhi)本。 其實，多(duo)點校準法(fa)最(zui)早是(shi)大(da)屏(ping)(ping)(ping)幕(mu)投影觸(chu)(chu)(chu)(chu)摸(mo)板使用的(de)(de)(de)(de)方法(fa)，目(mu)(mu)的(de)(de)(de)(de)是(shi)消除坐標對(dui)應(ying)的(de)(de)(de)(de)線xing失真(zhen)，電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)的(de)(de)(de)(de)線xing失真(zhen)也(ye)非(fei)常(chang)厲害，主要(yao)是(shi)因為(wei)(wei)電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)(ping)(ping)的(de)(de)(de)(de)計算建(jian)立(li)在四個電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)量與觸(chu)(chu)(chu)(chu)摸(mo)點到(dao)四個電(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)距離(li)成(cheng)比例的(de)(de)(de)(de)理想狀態上，實際由于受環境(jing)電(dian)(dian)(dian)(dian)容(rong)(rong)、線路寄生電(dian)(dian)(dian)(dian)容(rong)(rong)和不(bu)(bu)(bu)(bu)同人使用的(de)(de)(de)(de)影響。
