電(dian)容(rong)(rong)觸(chu)摸屏(ping)的(de)漂移問(wen)(wen)題。在觸(chu)摸屏(ping)產(chan)品中，電(dian)容(rong)(rong)觸(chu)摸屏(ping)是我們常用的(de)觸(chu)摸屏(ping)方式，那么，對(dui)(dui)于電(dian)容(rong)(rong)觸(chu)摸屏(ping)來說，其(qi)產(chan)品本身應用比(bi)較廣泛，但是也存在著不少問(wen)(wen)題。而且由于現(xian)在科技(ji)的(de)發展(zhan)程度還(huan)無法完(wan)全解決觸(chu)摸屏(ping)產(chan)品在相關(guan)原理上出現(xian)的(de)問(wen)(wen)題，所以(yi)對(dui)(dui)于這些(xie)問(wen)(wen)題，目(mu)前還(huan)是普(pu)遍存在的(de)。
在這里武漢公(gong)司(si)要(yao)(yao)跟(gen)大家討論的(de)(de)是關(guan)于電(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)的(de)(de)"漂(piao)移(yi)"問(wen)題(ti)，這個問(wen)題(ti)比較常見，也(ye)是我們在解(jie)決產品問(wen)題(ti)時主要(yao)(yao)考慮的(de)(de)方(fang)面。 電(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)的(de)(de)漂(piao)移(yi)問(wen)題(ti)介紹！ 武漢觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)公(gong)司(si)提示，電(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)本身(shen)實際是一套(tao)精(jing)密的(de)(de)漏電(dian)(dian)傳(chuan)感器，帶手套(tao)的(de)(de)手不(bu)能(neng)觸(chu)(chu)摸(mo)(mo)(mo)，由于使用電(dian)(dian)容(rong)(rong)方(fang)式，導致有漂(piao)移(yi)現象(xiang)。電(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)和(he)電(dian)(dian)阻觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)都(dou)(dou)是電(dian)(dian)原理工作方(fang)式，電(dian)(dian)工作方(fang)式對(dui)于多(duo)點(dian)(dian)觸(chu)(chu)摸(mo)(mo)(mo)，不(bu)管是多(duo)少點(dian)(dian)，也(ye)不(bu)管是連續(xu)的(de)(de)還是不(bu)連續(xu)的(de)(de)都(dou)(dou)是取多(duo)點(dian)(dian)觸(chu)(chu)摸(mo)(mo)(mo)的(de)(de)中心(xin)點(dian)(dian)判斷，因為電(dian)(dian)流疊加是分不(bu)出來誰是誰的(de)(de)，沒(mei)有辦法。
但(dan)是(shi)(shi)(shi)，目前(qian)來(lai)說，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)仍(reng)然有不(bu)少(shao)問題存在。武漢公司(si)信為，觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)目前(qian)的(de)(de)(de)透(tou)明導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)材料(liao)ITO--氧化金屬非常脆(cui)弱，觸(chu)摸(mo)(mo)(mo)幾(ji)下就(jiu)會損壞，還不(bu)能(neng)直(zhi)(zhi)(zhi)接用來(lai)作工作層。材料(liao)的(de)(de)(de)問題一(yi)時(shi)還難(nan)以(yi)解(jie)決，只(zhi)好委曲求全：在外部增加(jia)一(yi)層非常薄的(de)(de)(de)堅(jian)硬玻(bo)璃(li)，它顯然是(shi)(shi)(shi)不(bu)能(neng)導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)，直(zhi)(zhi)(zhi)流是(shi)(shi)(shi)不(bu)行了(le)，改(gai)用高頻(pin)交流信號(hao)，靠人的(de)(de)(de)手指(zhi)頭（隔(ge)著(zhu)薄玻(bo)璃(li)）與(yu)工作面(mian)形成的(de)(de)(de)耦(ou)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)來(lai)吸走一(yi)個交流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流，這(zhe)(zhe)就(jiu)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)"電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)"名(ming)字(zi)的(de)(de)(de)由來(lai)。 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)之所以(yi)出現"漂移"的(de)(de)(de)問題，是(shi)(shi)(shi)因為耦(ou)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)(de)方(fang)式(shi)是(shi)(shi)(shi)不(bu)穩定(ding)的(de)(de)(de)，它直(zhi)(zhi)(zhi)接受溫度、濕(shi)度、手指(zhi)濕(shi)潤程度、人體(ti)體(ti)重、地面(mian)干燥程度影響，受外界大面(mian)積物體(ti)的(de)(de)(de)干擾也非常大，帶來(lai)了(le)不(bu)穩定(ding)的(de)(de)(de)結果，這(zhe)(zhe)些都(dou)直(zhi)(zhi)(zhi)接違背了(le)作為觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)這(zhe)(zhe)種坐標系統的(de)(de)(de)基本(ben)(ben)要求，不(bu)可避(bi)免的(de)(de)(de)要產生(sheng)漂移，有的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)欲求通過25點(dian)校準法甚(shen)至96點(dian)校準法來(lai)解(jie)決漂移問題，其實是(shi)(shi)(shi)不(bu)可能(neng)的(de)(de)(de)，漂移是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)工作的(de)(de)(de)這(zhe)(zhe)種方(fang)式(shi)決定(ding)的(de)(de)(de)，即使是(shi)(shi)(shi)在控制(zhi)器(qi)的(de)(de)(de)單片程序上利用動態計(ji)算(suan)和經驗值(zhi)查表，也只(zhi)能(neng)是(shi)(shi)(shi)治標不(bu)治本(ben)(ben)。 其實，多(duo)點(dian)校準法最(zui)早是(shi)(shi)(shi)大屏(ping)(ping)(ping)幕投(tou)影觸(chu)摸(mo)(mo)(mo)板使用的(de)(de)(de)方(fang)法，目的(de)(de)(de)是(shi)(shi)(shi)消除(chu)坐標對應的(de)(de)(de)線(xian)xing失(shi)真，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)的(de)(de)(de)線(xian)xing失(shi)真也非常厲害，主要是(shi)(shi)(shi)因為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)的(de)(de)(de)計(ji)算(suan)建立在四個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流量與(yu)觸(chu)摸(mo)(mo)(mo)點(dian)到四個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極的(de)(de)(de)距離成比例(li)的(de)(de)(de)理想狀(zhuang)態上，實際由于受環境電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)、線(xian)路寄生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)和不(bu)同人使用的(de)(de)(de)影響。
