電(dian)容觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)的漂移問(wen)題。在(zai)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)產品(pin)中，電(dian)容觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)是我(wo)們常用的觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)方式，那(nei)么，對(dui)于(yu)電(dian)容觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)來說，其(qi)產品(pin)本身應用比較(jiao)廣泛，但是也存在(zai)著不少問(wen)題。而且由(you)于(yu)現(xian)在(zai)科技的發(fa)展程度(du)還(huan)無(wu)法完全解(jie)決(jue)觸(chu)(chu)摸(mo)(mo)(mo)屏(ping)(ping)(ping)產品(pin)在(zai)相關原理(li)上出現(xian)的問(wen)題，所以對(dui)于(yu)這些問(wen)題，目前還(huan)是普(pu)遍存在(zai)的。
在(zai)(zai)這里武(wu)漢公司要跟(gen)大家討論(lun)的(de)(de)是(shi)(shi)(shi)關于(yu)電(dian)(dian)(dian)(dian)容觸(chu)(chu)(chu)(chu)摸(mo)屏的(de)(de)"漂(piao)(piao)移(yi)"問(wen)(wen)題(ti)，這個問(wen)(wen)題(ti)比較常(chang)見，也是(shi)(shi)(shi)我們在(zai)(zai)解決產(chan)品問(wen)(wen)題(ti)時主要考慮的(de)(de)方(fang)面。 電(dian)(dian)(dian)(dian)容觸(chu)(chu)(chu)(chu)摸(mo)屏的(de)(de)漂(piao)(piao)移(yi)問(wen)(wen)題(ti)介紹！ 武(wu)漢觸(chu)(chu)(chu)(chu)摸(mo)屏公司提(ti)示，電(dian)(dian)(dian)(dian)容觸(chu)(chu)(chu)(chu)摸(mo)屏本身實際是(shi)(shi)(shi)一套精密的(de)(de)漏電(dian)(dian)(dian)(dian)傳感器，帶手套的(de)(de)手不(bu)能觸(chu)(chu)(chu)(chu)摸(mo)，由于(yu)使用電(dian)(dian)(dian)(dian)容方(fang)式(shi)(shi)，導致有漂(piao)(piao)移(yi)現象(xiang)。電(dian)(dian)(dian)(dian)容觸(chu)(chu)(chu)(chu)摸(mo)屏和電(dian)(dian)(dian)(dian)阻觸(chu)(chu)(chu)(chu)摸(mo)屏都(dou)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)原理工(gong)作方(fang)式(shi)(shi)，電(dian)(dian)(dian)(dian)工(gong)作方(fang)式(shi)(shi)對(dui)于(yu)多點(dian)觸(chu)(chu)(chu)(chu)摸(mo)，不(bu)管是(shi)(shi)(shi)多少點(dian)，也不(bu)管是(shi)(shi)(shi)連續的(de)(de)還是(shi)(shi)(shi)不(bu)連續的(de)(de)都(dou)是(shi)(shi)(shi)取多點(dian)觸(chu)(chu)(chu)(chu)摸(mo)的(de)(de)中心(xin)點(dian)判(pan)斷，因(yin)為電(dian)(dian)(dian)(dian)流疊加是(shi)(shi)(shi)分不(bu)出來誰是(shi)(shi)(shi)誰的(de)(de)，沒有辦法。
但(dan)是(shi)(shi)(shi)(shi)(shi)，目前來(lai)說，電(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)仍然(ran)(ran)有不(bu)(bu)少問(wen)題存在。武(wu)漢公司信為(wei)，觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)目前的(de)(de)(de)(de)(de)(de)(de)透明(ming)導(dao)電(dian)(dian)(dian)(dian)材(cai)料(liao)ITO--氧(yang)化(hua)金屬非常脆弱，觸(chu)(chu)(chu)摸(mo)幾下就會損壞，還不(bu)(bu)能直(zhi)接(jie)用來(lai)作(zuo)(zuo)(zuo)工作(zuo)(zuo)(zuo)層(ceng)。材(cai)料(liao)的(de)(de)(de)(de)(de)(de)(de)問(wen)題一時還難以(yi)解(jie)決，只好(hao)委曲求(qiu)全：在外部增加一層(ceng)非常薄(bo)的(de)(de)(de)(de)(de)(de)(de)堅硬玻璃(li)，它顯然(ran)(ran)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)能導(dao)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)，直(zhi)流(liu)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)行了(le)，改用高頻交流(liu)信號，靠人(ren)的(de)(de)(de)(de)(de)(de)(de)手(shou)指頭（隔著(zhu)薄(bo)玻璃(li)）與工作(zuo)(zuo)(zuo)面形(xing)成(cheng)的(de)(de)(de)(de)(de)(de)(de)耦(ou)(ou)合(he)電(dian)(dian)(dian)(dian)容(rong)來(lai)吸(xi)走一個(ge)交流(liu)電(dian)(dian)(dian)(dian)流(liu)，這就是(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)屏(ping)(ping)"電(dian)(dian)(dian)(dian)容(rong)"名字的(de)(de)(de)(de)(de)(de)(de)由(you)來(lai)。 電(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)之所以(yi)出現"漂移(yi)"的(de)(de)(de)(de)(de)(de)(de)問(wen)題，是(shi)(shi)(shi)(shi)(shi)因(yin)為(wei)耦(ou)(ou)合(he)電(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)(de)(de)(de)方式是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)穩定(ding)的(de)(de)(de)(de)(de)(de)(de)，它直(zhi)接(jie)受溫(wen)度(du)、濕(shi)度(du)、手(shou)指濕(shi)潤(run)程(cheng)度(du)、人(ren)體(ti)體(ti)重(zhong)、地面干燥程(cheng)度(du)影(ying)(ying)響，受外界大(da)面積物體(ti)的(de)(de)(de)(de)(de)(de)(de)干擾也(ye)非常大(da)，帶來(lai)了(le)不(bu)(bu)穩定(ding)的(de)(de)(de)(de)(de)(de)(de)結果，這些(xie)都直(zhi)接(jie)違背了(le)作(zuo)(zuo)(zuo)為(wei)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)這種坐(zuo)標(biao)系統的(de)(de)(de)(de)(de)(de)(de)基本(ben)要求(qiu)，不(bu)(bu)可避免的(de)(de)(de)(de)(de)(de)(de)要產生(sheng)漂移(yi)，有的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)欲求(qiu)通過25點(dian)校(xiao)準法甚至96點(dian)校(xiao)準法來(lai)解(jie)決漂移(yi)問(wen)題，其實是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)可能的(de)(de)(de)(de)(de)(de)(de)，漂移(yi)是(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)工作(zuo)(zuo)(zuo)的(de)(de)(de)(de)(de)(de)(de)這種方式決定(ding)的(de)(de)(de)(de)(de)(de)(de)，即使(shi)(shi)是(shi)(shi)(shi)(shi)(shi)在控(kong)制器的(de)(de)(de)(de)(de)(de)(de)單片程(cheng)序上利用動態計算和經驗值(zhi)查表，也(ye)只能是(shi)(shi)(shi)(shi)(shi)治標(biao)不(bu)(bu)治本(ben)。 其實，多點(dian)校(xiao)準法最早是(shi)(shi)(shi)(shi)(shi)大(da)屏(ping)(ping)幕(mu)投影(ying)(ying)觸(chu)(chu)(chu)摸(mo)板使(shi)(shi)用的(de)(de)(de)(de)(de)(de)(de)方法，目的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)(shi)(shi)消除坐(zuo)標(biao)對應(ying)的(de)(de)(de)(de)(de)(de)(de)線xing失真(zhen)，電(dian)(dian)(dian)(dian)容(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)線xing失真(zhen)也(ye)非常厲害，主要是(shi)(shi)(shi)(shi)(shi)因(yin)為(wei)電(dian)(dian)(dian)(dian)容(rong)屏(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)計算建立在四個(ge)電(dian)(dian)(dian)(dian)流(liu)量與觸(chu)(chu)(chu)摸(mo)點(dian)到四個(ge)電(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)(de)(de)距(ju)離成(cheng)比例的(de)(de)(de)(de)(de)(de)(de)理想狀(zhuang)態上，實際(ji)由(you)于受環(huan)境電(dian)(dian)(dian)(dian)容(rong)、線路寄生(sheng)電(dian)(dian)(dian)(dian)容(rong)和不(bu)(bu)同人(ren)使(shi)(shi)用的(de)(de)(de)(de)(de)(de)(de)影(ying)(ying)響。
