電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)的漂(piao)移問(wen)題。在(zai)(zai)觸(chu)摸(mo)屏(ping)(ping)產(chan)品(pin)中，電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)是我(wo)們常用的觸(chu)摸(mo)屏(ping)(ping)方式，那么，對于電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)來說(shuo)，其產(chan)品(pin)本身應用比較廣(guang)泛，但是也存在(zai)(zai)著不少問(wen)題。而且由于現(xian)在(zai)(zai)科技的發展程度還無法完全解決觸(chu)摸(mo)屏(ping)(ping)產(chan)品(pin)在(zai)(zai)相關原(yuan)理上出現(xian)的問(wen)題，所以對于這些問(wen)題，目前還是普遍存在(zai)(zai)的。
在這里武漢公司要跟大家討論的(de)是(shi)(shi)(shi)(shi)關于(yu)電(dian)(dian)容觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)的(de)"漂移(yi)"問題，這個(ge)問題比較常見，也是(shi)(shi)(shi)(shi)我們在解決產(chan)品問題時主要考慮的(de)方面。 電(dian)(dian)容觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)的(de)漂移(yi)問題介紹(shao)！ 武漢觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)公司提示(shi)，電(dian)(dian)容觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)本(ben)身實際是(shi)(shi)(shi)(shi)一套(tao)(tao)精密的(de)漏電(dian)(dian)傳感(gan)器，帶手套(tao)(tao)的(de)手不能(neng)觸(chu)(chu)(chu)摸(mo)，由于(yu)使(shi)用電(dian)(dian)容方式，導致有漂移(yi)現(xian)象。電(dian)(dian)容觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)和電(dian)(dian)阻觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)都(dou)是(shi)(shi)(shi)(shi)電(dian)(dian)原理工作(zuo)方式，電(dian)(dian)工作(zuo)方式對(dui)于(yu)多(duo)點觸(chu)(chu)(chu)摸(mo)，不管(guan)是(shi)(shi)(shi)(shi)多(duo)少(shao)點，也不管(guan)是(shi)(shi)(shi)(shi)連續的(de)還(huan)是(shi)(shi)(shi)(shi)不連續的(de)都(dou)是(shi)(shi)(shi)(shi)取多(duo)點觸(chu)(chu)(chu)摸(mo)的(de)中心點判(pan)斷(duan)，因為電(dian)(dian)流疊加是(shi)(shi)(shi)(shi)分(fen)不出來誰是(shi)(shi)(shi)(shi)誰的(de)，沒有辦法。
但(dan)是(shi)(shi)(shi)，目(mu)(mu)前(qian)來(lai)(lai)說，電(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)屏(ping)仍然有不(bu)(bu)(bu)少問(wen)題(ti)存(cun)在(zai)。武漢(han)公司(si)信為(wei)(wei)(wei)，觸(chu)摸(mo)(mo)屏(ping)目(mu)(mu)前(qian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)透明(ming)導(dao)電(dian)(dian)(dian)(dian)(dian)材(cai)料(liao)ITO--氧化金屬非常(chang)脆弱，觸(chu)摸(mo)(mo)幾下就會損壞(huai)，還不(bu)(bu)(bu)能直(zhi)接用(yong)來(lai)(lai)作(zuo)(zuo)工(gong)作(zuo)(zuo)層(ceng)。材(cai)料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題(ti)一時還難以解決，只(zhi)(zhi)好委曲(qu)求(qiu)全：在(zai)外部增加一層(ceng)非常(chang)薄的(de)(de)(de)(de)(de)(de)(de)(de)(de)堅硬玻璃(li)，它(ta)顯(xian)然是(shi)(shi)(shi)不(bu)(bu)(bu)能導(dao)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，直(zhi)流(liu)是(shi)(shi)(shi)不(bu)(bu)(bu)行(xing)了，改用(yong)高頻交流(liu)信號，靠人(ren)的(de)(de)(de)(de)(de)(de)(de)(de)(de)手指(zhi)頭（隔著薄玻璃(li)）與(yu)工(gong)作(zuo)(zuo)面(mian)(mian)形成的(de)(de)(de)(de)(de)(de)(de)(de)(de)耦合電(dian)(dian)(dian)(dian)(dian)容(rong)來(lai)(lai)吸走一個交流(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)，這(zhe)就是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)容(rong)屏(ping)"電(dian)(dian)(dian)(dian)(dian)容(rong)"名(ming)字的(de)(de)(de)(de)(de)(de)(de)(de)(de)由來(lai)(lai)。 電(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)屏(ping)之所以出現(xian)"漂(piao)移"的(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題(ti)，是(shi)(shi)(shi)因(yin)為(wei)(wei)(wei)耦合電(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)方式(shi)是(shi)(shi)(shi)不(bu)(bu)(bu)穩定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，它(ta)直(zhi)接受溫度、濕度、手指(zhi)濕潤程度、人(ren)體體重、地面(mian)(mian)干燥程度影響(xiang)，受外界(jie)大面(mian)(mian)積物體的(de)(de)(de)(de)(de)(de)(de)(de)(de)干擾也非常(chang)大，帶來(lai)(lai)了不(bu)(bu)(bu)穩定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)結果，這(zhe)些都直(zhi)接違背了作(zuo)(zuo)為(wei)(wei)(wei)觸(chu)摸(mo)(mo)屏(ping)這(zhe)種(zhong)(zhong)坐(zuo)標(biao)系統的(de)(de)(de)(de)(de)(de)(de)(de)(de)基本(ben)要(yao)求(qiu)，不(bu)(bu)(bu)可避免的(de)(de)(de)(de)(de)(de)(de)(de)(de)要(yao)產生漂(piao)移，有的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)屏(ping)欲求(qiu)通過25點校(xiao)準法(fa)甚(shen)至96點校(xiao)準法(fa)來(lai)(lai)解決漂(piao)移問(wen)題(ti)，其實是(shi)(shi)(shi)不(bu)(bu)(bu)可能的(de)(de)(de)(de)(de)(de)(de)(de)(de)，漂(piao)移是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)容(rong)工(gong)作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)這(zhe)種(zhong)(zhong)方式(shi)決定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，即(ji)使(shi)是(shi)(shi)(shi)在(zai)控制器的(de)(de)(de)(de)(de)(de)(de)(de)(de)單片(pian)程序(xu)上利用(yong)動(dong)態(tai)計算和經(jing)驗(yan)值查表，也只(zhi)(zhi)能是(shi)(shi)(shi)治標(biao)不(bu)(bu)(bu)治本(ben)。 其實，多點校(xiao)準法(fa)最(zui)早是(shi)(shi)(shi)大屏(ping)幕投影觸(chu)摸(mo)(mo)板使(shi)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)方法(fa)，目(mu)(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)消(xiao)除坐(zuo)標(biao)對應的(de)(de)(de)(de)(de)(de)(de)(de)(de)線xing失真，電(dian)(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)屏(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)線xing失真也非常(chang)厲害，主要(yao)是(shi)(shi)(shi)因(yin)為(wei)(wei)(wei)電(dian)(dian)(dian)(dian)(dian)容(rong)屏(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)計算建立(li)在(zai)四(si)個電(dian)(dian)(dian)(dian)(dian)流(liu)量與(yu)觸(chu)摸(mo)(mo)點到(dao)四(si)個電(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)距(ju)離成比例的(de)(de)(de)(de)(de)(de)(de)(de)(de)理(li)想狀態(tai)上，實際由于受環(huan)境電(dian)(dian)(dian)(dian)(dian)容(rong)、線路寄生電(dian)(dian)(dian)(dian)(dian)容(rong)和不(bu)(bu)(bu)同人(ren)使(shi)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)影響(xiang)。
