電(dian)容(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)的(de)漂移(yi)問(wen)題(ti)(ti)。在觸(chu)(chu)摸(mo)屏(ping)(ping)產(chan)品中，電(dian)容(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)是我們(men)常用(yong)的(de)觸(chu)(chu)摸(mo)屏(ping)(ping)方(fang)式，那(nei)么，對于電(dian)容(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)來(lai)說，其產(chan)品本身應用(yong)比(bi)較廣泛，但是也存(cun)在著不少(shao)問(wen)題(ti)(ti)。而且由于現在科(ke)技的(de)發展程度還(huan)無(wu)法(fa)完全解決(jue)觸(chu)(chu)摸(mo)屏(ping)(ping)產(chan)品在相關原(yuan)理上出現的(de)問(wen)題(ti)(ti)，所以對于這些問(wen)題(ti)(ti)，目前還(huan)是普(pu)遍存(cun)在的(de)。
在(zai)這(zhe)里武漢公(gong)司要(yao)跟大(da)家討論的(de)(de)是(shi)(shi)(shi)(shi)(shi)關于(yu)電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)的(de)(de)"漂移(yi)"問(wen)(wen)題(ti)，這(zhe)個問(wen)(wen)題(ti)比較(jiao)常見，也(ye)是(shi)(shi)(shi)(shi)(shi)我們在(zai)解(jie)決產(chan)品問(wen)(wen)題(ti)時主要(yao)考慮的(de)(de)方(fang)面。 電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)的(de)(de)漂移(yi)問(wen)(wen)題(ti)介紹！ 武漢觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)公(gong)司提示，電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)本(ben)身實際是(shi)(shi)(shi)(shi)(shi)一套精(jing)密的(de)(de)漏(lou)電(dian)(dian)傳感器，帶手(shou)套的(de)(de)手(shou)不能觸(chu)摸(mo)(mo)(mo)(mo)(mo)，由于(yu)使用電(dian)(dian)容(rong)(rong)方(fang)式，導致有漂移(yi)現象。電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)和電(dian)(dian)阻觸(chu)摸(mo)(mo)(mo)(mo)(mo)屏(ping)(ping)(ping)都(dou)是(shi)(shi)(shi)(shi)(shi)電(dian)(dian)原理工作方(fang)式，電(dian)(dian)工作方(fang)式對于(yu)多點(dian)觸(chu)摸(mo)(mo)(mo)(mo)(mo)，不管(guan)(guan)是(shi)(shi)(shi)(shi)(shi)多少點(dian)，也(ye)不管(guan)(guan)是(shi)(shi)(shi)(shi)(shi)連續的(de)(de)還是(shi)(shi)(shi)(shi)(shi)不連續的(de)(de)都(dou)是(shi)(shi)(shi)(shi)(shi)取多點(dian)觸(chu)摸(mo)(mo)(mo)(mo)(mo)的(de)(de)中心點(dian)判斷，因為電(dian)(dian)流疊加是(shi)(shi)(shi)(shi)(shi)分不出(chu)來誰是(shi)(shi)(shi)(shi)(shi)誰的(de)(de)，沒有辦法。
但是(shi)(shi)，目(mu)前(qian)來(lai)說，電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)仍然(ran)有不(bu)(bu)(bu)少問(wen)題(ti)存(cun)在。武(wu)漢公司信(xin)(xin)為，觸(chu)摸(mo)(mo)屏(ping)目(mu)前(qian)的(de)(de)(de)透明導電(dian)(dian)(dian)材料ITO--氧化金屬非常脆弱，觸(chu)摸(mo)(mo)幾(ji)下就會損壞，還不(bu)(bu)(bu)能(neng)(neng)直(zhi)接用(yong)(yong)(yong)來(lai)作(zuo)工(gong)作(zuo)層。材料的(de)(de)(de)問(wen)題(ti)一(yi)(yi)(yi)時(shi)還難以解(jie)決，只好委曲求全(quan)：在外部增加一(yi)(yi)(yi)層非常薄的(de)(de)(de)堅硬玻璃(li)，它顯然(ran)是(shi)(shi)不(bu)(bu)(bu)能(neng)(neng)導電(dian)(dian)(dian)的(de)(de)(de)，直(zhi)流(liu)是(shi)(shi)不(bu)(bu)(bu)行(xing)了，改用(yong)(yong)(yong)高頻交流(liu)信(xin)(xin)號，靠人的(de)(de)(de)手(shou)指(zhi)頭（隔著薄玻璃(li)）與工(gong)作(zuo)面(mian)(mian)形成的(de)(de)(de)耦(ou)合電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)來(lai)吸走一(yi)(yi)(yi)個(ge)(ge)交流(liu)電(dian)(dian)(dian)流(liu)，這就是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)"電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)"名字的(de)(de)(de)由來(lai)。 電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)之所以出現"漂(piao)移(yi)"的(de)(de)(de)問(wen)題(ti)，是(shi)(shi)因(yin)為耦(ou)合電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)方式是(shi)(shi)不(bu)(bu)(bu)穩定(ding)(ding)的(de)(de)(de)，它直(zhi)接受溫(wen)度、濕(shi)度、手(shou)指(zhi)濕(shi)潤程(cheng)度、人體體重、地面(mian)(mian)干燥(zao)程(cheng)度影(ying)響，受外界大面(mian)(mian)積物體的(de)(de)(de)干擾也非常大，帶來(lai)了不(bu)(bu)(bu)穩定(ding)(ding)的(de)(de)(de)結(jie)果(guo)，這些都直(zhi)接違背了作(zuo)為觸(chu)摸(mo)(mo)屏(ping)這種(zhong)坐(zuo)標系統的(de)(de)(de)基(ji)本(ben)要求，不(bu)(bu)(bu)可(ke)避(bi)免的(de)(de)(de)要產(chan)生(sheng)漂(piao)移(yi)，有的(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)欲求通過25點校(xiao)(xiao)準法甚至96點校(xiao)(xiao)準法來(lai)解(jie)決漂(piao)移(yi)問(wen)題(ti)，其實是(shi)(shi)不(bu)(bu)(bu)可(ke)能(neng)(neng)的(de)(de)(de)，漂(piao)移(yi)是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)工(gong)作(zuo)的(de)(de)(de)這種(zhong)方式決定(ding)(ding)的(de)(de)(de)，即(ji)使(shi)是(shi)(shi)在控制(zhi)器的(de)(de)(de)單片程(cheng)序上(shang)利用(yong)(yong)(yong)動(dong)態(tai)(tai)計(ji)(ji)算和經(jing)驗值查表(biao)，也只能(neng)(neng)是(shi)(shi)治標不(bu)(bu)(bu)治本(ben)。 其實，多點校(xiao)(xiao)準法最(zui)早是(shi)(shi)大屏(ping)幕(mu)投影(ying)觸(chu)摸(mo)(mo)板使(shi)用(yong)(yong)(yong)的(de)(de)(de)方法，目(mu)的(de)(de)(de)是(shi)(shi)消(xiao)除坐(zuo)標對應的(de)(de)(de)線xing失真(zhen)，電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)的(de)(de)(de)線xing失真(zhen)也非常厲害，主要是(shi)(shi)因(yin)為電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)的(de)(de)(de)計(ji)(ji)算建立在四個(ge)(ge)電(dian)(dian)(dian)流(liu)量與觸(chu)摸(mo)(mo)點到四個(ge)(ge)電(dian)(dian)(dian)極的(de)(de)(de)距離成比(bi)例的(de)(de)(de)理想(xiang)狀態(tai)(tai)上(shang)，實際由于受環(huan)境電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、線路寄生(sheng)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)和不(bu)(bu)(bu)同人使(shi)用(yong)(yong)(yong)的(de)(de)(de)影(ying)響。
