電(dian)(dian)容(rong)觸摸屏(ping)的漂移(yi)問題(ti)。在觸摸屏(ping)產品中，電(dian)(dian)容(rong)觸摸屏(ping)是我們常(chang)用的觸摸屏(ping)方(fang)式，那么(me)，對于電(dian)(dian)容(rong)觸摸屏(ping)來說(shuo)，其產品本身應(ying)用比較廣(guang)泛，但是也存(cun)在著不少問題(ti)。而且由于現在科技的發展程度還無(wu)法完全(quan)解決(jue)觸摸屏(ping)產品在相關原理(li)上出現的問題(ti)，所以對于這些(xie)問題(ti)，目前還是普遍存(cun)在的。
在(zai)這里武漢公(gong)司(si)要跟大家討論的(de)(de)是(shi)(shi)(shi)關于電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏的(de)(de)"漂(piao)移(yi)(yi)(yi)"問(wen)題(ti)，這個問(wen)題(ti)比較常見，也(ye)是(shi)(shi)(shi)我們在(zai)解決產品問(wen)題(ti)時主要考慮的(de)(de)方(fang)面。 電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏的(de)(de)漂(piao)移(yi)(yi)(yi)問(wen)題(ti)介(jie)紹！ 武漢觸(chu)(chu)摸(mo)(mo)屏公(gong)司(si)提示，電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏本(ben)身實際是(shi)(shi)(shi)一套精密(mi)的(de)(de)漏電(dian)(dian)(dian)(dian)(dian)(dian)傳感器，帶手(shou)套的(de)(de)手(shou)不(bu)(bu)能觸(chu)(chu)摸(mo)(mo)，由于使用電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)方(fang)式(shi)，導致(zhi)有漂(piao)移(yi)(yi)(yi)現象。電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏和(he)電(dian)(dian)(dian)(dian)(dian)(dian)阻觸(chu)(chu)摸(mo)(mo)屏都(dou)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)原理(li)工作(zuo)方(fang)式(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)工作(zuo)方(fang)式(shi)對于多點觸(chu)(chu)摸(mo)(mo)，不(bu)(bu)管(guan)是(shi)(shi)(shi)多少點，也(ye)不(bu)(bu)管(guan)是(shi)(shi)(shi)連續的(de)(de)還是(shi)(shi)(shi)不(bu)(bu)連續的(de)(de)都(dou)是(shi)(shi)(shi)取(qu)多點觸(chu)(chu)摸(mo)(mo)的(de)(de)中心點判斷，因為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)流疊(die)加是(shi)(shi)(shi)分不(bu)(bu)出(chu)來(lai)誰是(shi)(shi)(shi)誰的(de)(de)，沒有辦法。
但是(shi)(shi)，目前來(lai)說(shuo)，電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)仍然(ran)有不(bu)(bu)少問題存在(zai)。武漢(han)公司信為，觸(chu)(chu)摸(mo)屏(ping)目前的(de)(de)(de)(de)(de)透明導電(dian)(dian)(dian)(dian)(dian)材料(liao)ITO--氧化(hua)金屬非(fei)(fei)常(chang)(chang)脆弱，觸(chu)(chu)摸(mo)幾(ji)下就(jiu)會損壞(huai)，還不(bu)(bu)能(neng)直(zhi)接(jie)(jie)用(yong)(yong)來(lai)作工作層(ceng)。材料(liao)的(de)(de)(de)(de)(de)問題一(yi)(yi)時還難以解(jie)決，只(zhi)(zhi)好委曲求(qiu)全：在(zai)外(wai)部增加一(yi)(yi)層(ceng)非(fei)(fei)常(chang)(chang)薄的(de)(de)(de)(de)(de)堅硬(ying)玻璃(li)，它(ta)顯然(ran)是(shi)(shi)不(bu)(bu)能(neng)導電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)，直(zhi)流是(shi)(shi)不(bu)(bu)行了(le)，改用(yong)(yong)高頻交流信號，靠(kao)人的(de)(de)(de)(de)(de)手指頭(tou)（隔著薄玻璃(li)）與(yu)工作面形成(cheng)的(de)(de)(de)(de)(de)耦(ou)合(he)電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)來(lai)吸走(zou)一(yi)(yi)個(ge)交流電(dian)(dian)(dian)(dian)(dian)流，這(zhe)就(jiu)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)"電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)"名字的(de)(de)(de)(de)(de)由(you)來(lai)。 電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)之所(suo)以出現"漂(piao)移(yi)"的(de)(de)(de)(de)(de)問題，是(shi)(shi)因(yin)為耦(ou)合(he)電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)方式是(shi)(shi)不(bu)(bu)穩(wen)(wen)定的(de)(de)(de)(de)(de)，它(ta)直(zhi)接(jie)(jie)受(shou)溫度、濕度、手指濕潤(run)程度、人體(ti)體(ti)重、地面干燥程度影(ying)響，受(shou)外(wai)界大面積物體(ti)的(de)(de)(de)(de)(de)干擾(rao)也非(fei)(fei)常(chang)(chang)大，帶來(lai)了(le)不(bu)(bu)穩(wen)(wen)定的(de)(de)(de)(de)(de)結果，這(zhe)些(xie)都直(zhi)接(jie)(jie)違背(bei)了(le)作為觸(chu)(chu)摸(mo)屏(ping)這(zhe)種坐標系(xi)統的(de)(de)(de)(de)(de)基(ji)本(ben)要(yao)(yao)求(qiu)，不(bu)(bu)可避(bi)免的(de)(de)(de)(de)(de)要(yao)(yao)產生漂(piao)移(yi)，有的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)欲求(qiu)通過25點(dian)校(xiao)準(zhun)法(fa)甚至96點(dian)校(xiao)準(zhun)法(fa)來(lai)解(jie)決漂(piao)移(yi)問題，其實(shi)是(shi)(shi)不(bu)(bu)可能(neng)的(de)(de)(de)(de)(de)，漂(piao)移(yi)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)工作的(de)(de)(de)(de)(de)這(zhe)種方式決定的(de)(de)(de)(de)(de)，即使是(shi)(shi)在(zai)控制器的(de)(de)(de)(de)(de)單(dan)片(pian)程序上(shang)利用(yong)(yong)動態計算和(he)經驗(yan)值(zhi)查表，也只(zhi)(zhi)能(neng)是(shi)(shi)治(zhi)標不(bu)(bu)治(zhi)本(ben)。 其實(shi)，多點(dian)校(xiao)準(zhun)法(fa)最早(zao)是(shi)(shi)大屏(ping)幕投影(ying)觸(chu)(chu)摸(mo)板使用(yong)(yong)的(de)(de)(de)(de)(de)方法(fa)，目的(de)(de)(de)(de)(de)是(shi)(shi)消除坐標對應(ying)的(de)(de)(de)(de)(de)線xing失真，電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)的(de)(de)(de)(de)(de)線xing失真也非(fei)(fei)常(chang)(chang)厲害，主要(yao)(yao)是(shi)(shi)因(yin)為電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)的(de)(de)(de)(de)(de)計算建(jian)立在(zai)四個(ge)電(dian)(dian)(dian)(dian)(dian)流量與(yu)觸(chu)(chu)摸(mo)點(dian)到(dao)四個(ge)電(dian)(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)距離成(cheng)比例的(de)(de)(de)(de)(de)理想狀(zhuang)態上(shang)，實(shi)際由(you)于受(shou)環境電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、線路寄(ji)生電(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)和(he)不(bu)(bu)同人使用(yong)(yong)的(de)(de)(de)(de)(de)影(ying)響。
