電(dian)容觸(chu)摸(mo)屏(ping)的(de)漂移(yi)問(wen)題。在(zai)(zai)(zai)觸(chu)摸(mo)屏(ping)產品中，電(dian)容觸(chu)摸(mo)屏(ping)是(shi)我(wo)們常用(yong)的(de)觸(chu)摸(mo)屏(ping)方(fang)式(shi)，那么(me)，對(dui)(dui)于電(dian)容觸(chu)摸(mo)屏(ping)來(lai)說，其(qi)產品本身應用(yong)比較(jiao)廣泛，但是(shi)也存在(zai)(zai)(zai)著(zhu)不少問(wen)題。而(er)且(qie)由于現在(zai)(zai)(zai)科技(ji)的(de)發(fa)展程度(du)還無法(fa)完全解決觸(chu)摸(mo)屏(ping)產品在(zai)(zai)(zai)相關(guan)原理上出現的(de)問(wen)題，所以(yi)對(dui)(dui)于這些(xie)問(wen)題，目前還是(shi)普遍存在(zai)(zai)(zai)的(de)。
在這(zhe)里武漢(han)公司要(yao)跟大家討(tao)論的(de)(de)是(shi)(shi)關(guan)于電(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)的(de)(de)"漂(piao)移(yi)"問題，這(zhe)個問題比較常見，也是(shi)(shi)我們在解決產(chan)品(pin)問題時(shi)主要(yao)考(kao)慮的(de)(de)方(fang)面(mian)。 電(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)的(de)(de)漂(piao)移(yi)問題介紹！ 武漢(han)觸(chu)(chu)摸(mo)(mo)屏(ping)公司提(ti)示(shi)，電(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)本身實際是(shi)(shi)一套(tao)精密的(de)(de)漏電(dian)(dian)傳(chuan)感(gan)器(qi)，帶(dai)手套(tao)的(de)(de)手不能觸(chu)(chu)摸(mo)(mo)，由于使用電(dian)(dian)容(rong)方(fang)式，導致有漂(piao)移(yi)現(xian)象。電(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)和電(dian)(dian)阻觸(chu)(chu)摸(mo)(mo)屏(ping)都是(shi)(shi)電(dian)(dian)原理工(gong)作(zuo)方(fang)式，電(dian)(dian)工(gong)作(zuo)方(fang)式對于多點觸(chu)(chu)摸(mo)(mo)，不管(guan)是(shi)(shi)多少點，也不管(guan)是(shi)(shi)連續的(de)(de)還是(shi)(shi)不連續的(de)(de)都是(shi)(shi)取多點觸(chu)(chu)摸(mo)(mo)的(de)(de)中心點判(pan)斷，因為電(dian)(dian)流疊加(jia)是(shi)(shi)分不出來誰是(shi)(shi)誰的(de)(de)，沒有辦(ban)法。
但是(shi)(shi)，目(mu)前(qian)來(lai)說，電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)仍然(ran)有(you)不(bu)(bu)(bu)(bu)少問(wen)(wen)題(ti)存在。武漢公司信(xin)為，觸(chu)(chu)摸(mo)屏(ping)(ping)目(mu)前(qian)的(de)(de)(de)(de)透(tou)明(ming)導電(dian)(dian)(dian)(dian)材料ITO--氧化金屬非(fei)常(chang)(chang)脆弱，觸(chu)(chu)摸(mo)幾下就(jiu)會損壞，還(huan)不(bu)(bu)(bu)(bu)能直接用(yong)(yong)來(lai)作(zuo)(zuo)工(gong)作(zuo)(zuo)層(ceng)。材料的(de)(de)(de)(de)問(wen)(wen)題(ti)一(yi)(yi)時還(huan)難(nan)以(yi)解決(jue)，只(zhi)好委(wei)曲求(qiu)全(quan)：在外部(bu)增加一(yi)(yi)層(ceng)非(fei)常(chang)(chang)薄的(de)(de)(de)(de)堅硬玻璃，它顯然(ran)是(shi)(shi)不(bu)(bu)(bu)(bu)能導電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)，直流(liu)是(shi)(shi)不(bu)(bu)(bu)(bu)行了，改(gai)用(yong)(yong)高頻交流(liu)信(xin)號，靠人的(de)(de)(de)(de)手指頭（隔著薄玻璃）與(yu)工(gong)作(zuo)(zuo)面(mian)形成(cheng)的(de)(de)(de)(de)耦合(he)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)來(lai)吸(xi)走一(yi)(yi)個交流(liu)電(dian)(dian)(dian)(dian)流(liu)，這(zhe)(zhe)就(jiu)是(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)(ping)"電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)"名字的(de)(de)(de)(de)由來(lai)。 電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)之所以(yi)出現"漂(piao)(piao)移"的(de)(de)(de)(de)問(wen)(wen)題(ti)，是(shi)(shi)因為耦合(he)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)方式是(shi)(shi)不(bu)(bu)(bu)(bu)穩定(ding)的(de)(de)(de)(de)，它直接受(shou)溫度、濕度、手指濕潤程(cheng)(cheng)度、人體(ti)體(ti)重、地(di)面(mian)干(gan)燥程(cheng)(cheng)度影(ying)(ying)響(xiang)，受(shou)外界大面(mian)積物(wu)體(ti)的(de)(de)(de)(de)干(gan)擾也(ye)非(fei)常(chang)(chang)大，帶來(lai)了不(bu)(bu)(bu)(bu)穩定(ding)的(de)(de)(de)(de)結果，這(zhe)(zhe)些都直接違(wei)背了作(zuo)(zuo)為觸(chu)(chu)摸(mo)屏(ping)(ping)這(zhe)(zhe)種坐標系統(tong)的(de)(de)(de)(de)基本要求(qiu)，不(bu)(bu)(bu)(bu)可(ke)避免(mian)的(de)(de)(de)(de)要產生漂(piao)(piao)移，有(you)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)欲(yu)求(qiu)通過25點(dian)校(xiao)準(zhun)法(fa)甚(shen)至(zhi)96點(dian)校(xiao)準(zhun)法(fa)來(lai)解決(jue)漂(piao)(piao)移問(wen)(wen)題(ti)，其實(shi)是(shi)(shi)不(bu)(bu)(bu)(bu)可(ke)能的(de)(de)(de)(de)，漂(piao)(piao)移是(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)工(gong)作(zuo)(zuo)的(de)(de)(de)(de)這(zhe)(zhe)種方式決(jue)定(ding)的(de)(de)(de)(de)，即使(shi)是(shi)(shi)在控制(zhi)器的(de)(de)(de)(de)單片程(cheng)(cheng)序上利用(yong)(yong)動(dong)態計算和經驗(yan)值查表(biao)，也(ye)只(zhi)能是(shi)(shi)治(zhi)標不(bu)(bu)(bu)(bu)治(zhi)本。 其實(shi)，多點(dian)校(xiao)準(zhun)法(fa)最(zui)早是(shi)(shi)大屏(ping)(ping)幕投影(ying)(ying)觸(chu)(chu)摸(mo)板使(shi)用(yong)(yong)的(de)(de)(de)(de)方法(fa)，目(mu)的(de)(de)(de)(de)是(shi)(shi)消除坐標對應的(de)(de)(de)(de)線(xian)xing失真(zhen)，電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)觸(chu)(chu)摸(mo)屏(ping)(ping)的(de)(de)(de)(de)線(xian)xing失真(zhen)也(ye)非(fei)常(chang)(chang)厲害(hai)，主要是(shi)(shi)因為電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)屏(ping)(ping)的(de)(de)(de)(de)計算建立在四個電(dian)(dian)(dian)(dian)流(liu)量與(yu)觸(chu)(chu)摸(mo)點(dian)到四個電(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)距離成(cheng)比例的(de)(de)(de)(de)理想狀(zhuang)態上，實(shi)際由于(yu)受(shou)環境電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、線(xian)路寄生電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)和不(bu)(bu)(bu)(bu)同人使(shi)用(yong)(yong)的(de)(de)(de)(de)影(ying)(ying)響(xiang)。
