電容觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)的漂(piao)移問(wen)題。在(zai)(zai)(zai)觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)產(chan)(chan)品(pin)中，電容觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)是(shi)我們常用(yong)(yong)的觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)方式，那么，對于(yu)電容觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)來說，其產(chan)(chan)品(pin)本(ben)身應用(yong)(yong)比(bi)較廣(guang)泛，但是(shi)也存(cun)在(zai)(zai)(zai)著不少問(wen)題。而且由于(yu)現(xian)在(zai)(zai)(zai)科技的發展程度還無法完全解(jie)決(jue)觸(chu)(chu)摸(mo)(mo)屏(ping)(ping)產(chan)(chan)品(pin)在(zai)(zai)(zai)相關原(yuan)理上出現(xian)的問(wen)題，所以對于(yu)這些(xie)問(wen)題，目前(qian)還是(shi)普遍存(cun)在(zai)(zai)(zai)的。
在這(zhe)里武漢公司要(yao)跟大家討論的(de)(de)是(shi)關(guan)于電(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)的(de)(de)"漂(piao)移(yi)(yi)"問題(ti)，這(zhe)個(ge)問題(ti)比較常見(jian)，也(ye)是(shi)我們在解決產品問題(ti)時主要(yao)考慮的(de)(de)方面。 電(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)的(de)(de)漂(piao)移(yi)(yi)問題(ti)介紹！ 武漢觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)公司提示(shi)，電(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)本身實際是(shi)一套精密(mi)的(de)(de)漏電(dian)(dian)(dian)(dian)傳感(gan)器，帶手(shou)(shou)套的(de)(de)手(shou)(shou)不(bu)(bu)(bu)能觸(chu)摸(mo)(mo)(mo)，由于使用電(dian)(dian)(dian)(dian)容(rong)方式(shi)，導致有漂(piao)移(yi)(yi)現象。電(dian)(dian)(dian)(dian)容(rong)觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)和(he)電(dian)(dian)(dian)(dian)阻觸(chu)摸(mo)(mo)(mo)屏(ping)(ping)都是(shi)電(dian)(dian)(dian)(dian)原理工作(zuo)方式(shi)，電(dian)(dian)(dian)(dian)工作(zuo)方式(shi)對(dui)于多(duo)點(dian)(dian)觸(chu)摸(mo)(mo)(mo)，不(bu)(bu)(bu)管是(shi)多(duo)少點(dian)(dian)，也(ye)不(bu)(bu)(bu)管是(shi)連(lian)續的(de)(de)還(huan)是(shi)不(bu)(bu)(bu)連(lian)續的(de)(de)都是(shi)取多(duo)點(dian)(dian)觸(chu)摸(mo)(mo)(mo)的(de)(de)中心(xin)點(dian)(dian)判斷(duan)，因為電(dian)(dian)(dian)(dian)流疊(die)加是(shi)分不(bu)(bu)(bu)出(chu)來誰(shui)是(shi)誰(shui)的(de)(de)，沒有辦法。
但是(shi)，目(mu)(mu)前來說，電(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)仍然有(you)不(bu)少問(wen)題(ti)存在(zai)(zai)。武漢公司信(xin)為(wei)，觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)目(mu)(mu)前的(de)(de)(de)(de)(de)(de)透明(ming)導(dao)電(dian)(dian)(dian)材料ITO--氧化金(jin)屬非常脆弱(ruo)，觸(chu)(chu)(chu)摸(mo)(mo)幾下就會損壞(huai)，還不(bu)能直接用來作工(gong)(gong)作層。材料的(de)(de)(de)(de)(de)(de)問(wen)題(ti)一(yi)時還難以(yi)(yi)解(jie)決，只好委曲求(qiu)全(quan)：在(zai)(zai)外部(bu)增加一(yi)層非常薄的(de)(de)(de)(de)(de)(de)堅硬玻(bo)璃，它顯(xian)然是(shi)不(bu)能導(dao)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)，直流(liu)是(shi)不(bu)行了(le)，改(gai)用高(gao)頻交(jiao)流(liu)信(xin)號，靠人(ren)(ren)的(de)(de)(de)(de)(de)(de)手(shou)指頭(tou)（隔著薄玻(bo)璃）與工(gong)(gong)作面形成(cheng)的(de)(de)(de)(de)(de)(de)耦(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)來吸走(zou)一(yi)個交(jiao)流(liu)電(dian)(dian)(dian)流(liu)，這(zhe)就是(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)"電(dian)(dian)(dian)容(rong)(rong)(rong)"名字(zi)的(de)(de)(de)(de)(de)(de)由來。 電(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)之所(suo)以(yi)(yi)出現(xian)"漂移"的(de)(de)(de)(de)(de)(de)問(wen)題(ti)，是(shi)因(yin)為(wei)耦(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)方式(shi)是(shi)不(bu)穩(wen)定的(de)(de)(de)(de)(de)(de)，它直接受(shou)(shou)溫度(du)(du)、濕度(du)(du)、手(shou)指濕潤程(cheng)度(du)(du)、人(ren)(ren)體(ti)(ti)體(ti)(ti)重(zhong)、地面干燥(zao)程(cheng)度(du)(du)影(ying)(ying)響，受(shou)(shou)外界大面積(ji)物體(ti)(ti)的(de)(de)(de)(de)(de)(de)干擾也非常大，帶來了(le)不(bu)穩(wen)定的(de)(de)(de)(de)(de)(de)結果，這(zhe)些都(dou)直接違背了(le)作為(wei)觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)這(zhe)種坐(zuo)標(biao)系統的(de)(de)(de)(de)(de)(de)基本要求(qiu)，不(bu)可(ke)避免的(de)(de)(de)(de)(de)(de)要產生漂移，有(you)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)欲求(qiu)通(tong)過25點校(xiao)準(zhun)(zhun)法(fa)甚至(zhi)96點校(xiao)準(zhun)(zhun)法(fa)來解(jie)決漂移問(wen)題(ti)，其實是(shi)不(bu)可(ke)能的(de)(de)(de)(de)(de)(de)，漂移是(shi)電(dian)(dian)(dian)容(rong)(rong)(rong)工(gong)(gong)作的(de)(de)(de)(de)(de)(de)這(zhe)種方式(shi)決定的(de)(de)(de)(de)(de)(de)，即使是(shi)在(zai)(zai)控制(zhi)器的(de)(de)(de)(de)(de)(de)單(dan)片程(cheng)序上利用動態(tai)計(ji)算(suan)和(he)經(jing)驗值查表，也只能是(shi)治標(biao)不(bu)治本。 其實，多點校(xiao)準(zhun)(zhun)法(fa)最早是(shi)大屏(ping)(ping)(ping)幕投影(ying)(ying)觸(chu)(chu)(chu)摸(mo)(mo)板使用的(de)(de)(de)(de)(de)(de)方法(fa)，目(mu)(mu)的(de)(de)(de)(de)(de)(de)是(shi)消除坐(zuo)標(biao)對應(ying)的(de)(de)(de)(de)(de)(de)線(xian)(xian)xing失真(zhen)，電(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)線(xian)(xian)xing失真(zhen)也非常厲(li)害，主要是(shi)因(yin)為(wei)電(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)計(ji)算(suan)建(jian)立在(zai)(zai)四(si)個電(dian)(dian)(dian)流(liu)量與觸(chu)(chu)(chu)摸(mo)(mo)點到四(si)個電(dian)(dian)(dian)極的(de)(de)(de)(de)(de)(de)距離成(cheng)比例(li)的(de)(de)(de)(de)(de)(de)理想狀態(tai)上，實際由于受(shou)(shou)環境電(dian)(dian)(dian)容(rong)(rong)(rong)、線(xian)(xian)路寄生電(dian)(dian)(dian)容(rong)(rong)(rong)和(he)不(bu)同人(ren)(ren)使用的(de)(de)(de)(de)(de)(de)影(ying)(ying)響。
