電容觸(chu)摸(mo)屏(ping)(ping)的漂移問題(ti)(ti)。在(zai)(zai)觸(chu)摸(mo)屏(ping)(ping)產品中，電容觸(chu)摸(mo)屏(ping)(ping)是(shi)我(wo)們常用的觸(chu)摸(mo)屏(ping)(ping)方式，那么，對于(yu)電容觸(chu)摸(mo)屏(ping)(ping)來說(shuo)，其產品本身(shen)應用比較廣泛，但是(shi)也存(cun)(cun)在(zai)(zai)著不少問題(ti)(ti)。而且由于(yu)現(xian)在(zai)(zai)科技(ji)的發展程度還無法完全解決觸(chu)摸(mo)屏(ping)(ping)產品在(zai)(zai)相(xiang)關(guan)原理(li)上出現(xian)的問題(ti)(ti)，所以對于(yu)這(zhe)些問題(ti)(ti)，目前(qian)還是(shi)普遍存(cun)(cun)在(zai)(zai)的。
在(zai)這(zhe)里武(wu)漢(han)公司(si)要(yao)跟大家討(tao)論的(de)是(shi)(shi)(shi)關于(yu)電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)屏的(de)"漂(piao)(piao)移"問(wen)題(ti)，這(zhe)個問(wen)題(ti)比較常(chang)見，也(ye)是(shi)(shi)(shi)我(wo)們在(zai)解(jie)決(jue)產品問(wen)題(ti)時(shi)主要(yao)考(kao)慮的(de)方(fang)面。 電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)屏的(de)漂(piao)(piao)移問(wen)題(ti)介紹！ 武(wu)漢(han)觸(chu)摸(mo)屏公司(si)提示，電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)屏本身實際是(shi)(shi)(shi)一套(tao)精(jing)密的(de)漏電(dian)(dian)傳感器，帶手(shou)套(tao)的(de)手(shou)不(bu)(bu)能觸(chu)摸(mo)，由于(yu)使(shi)用(yong)電(dian)(dian)容(rong)(rong)方(fang)式(shi)，導致(zhi)有漂(piao)(piao)移現象。電(dian)(dian)容(rong)(rong)觸(chu)摸(mo)屏和電(dian)(dian)阻觸(chu)摸(mo)屏都(dou)是(shi)(shi)(shi)電(dian)(dian)原理(li)工作方(fang)式(shi)，電(dian)(dian)工作方(fang)式(shi)對于(yu)多點(dian)觸(chu)摸(mo)，不(bu)(bu)管是(shi)(shi)(shi)多少點(dian)，也(ye)不(bu)(bu)管是(shi)(shi)(shi)連(lian)續的(de)還是(shi)(shi)(shi)不(bu)(bu)連(lian)續的(de)都(dou)是(shi)(shi)(shi)取(qu)多點(dian)觸(chu)摸(mo)的(de)中心點(dian)判斷，因為(wei)電(dian)(dian)流(liu)疊加是(shi)(shi)(shi)分(fen)不(bu)(bu)出來誰是(shi)(shi)(shi)誰的(de)，沒有辦法。
但是(shi)(shi)(shi)，目前(qian)來(lai)說(shuo)，電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)仍然(ran)有不(bu)少問題(ti)(ti)存在。武漢公司信(xin)為(wei)，觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)目前(qian)的(de)(de)(de)(de)(de)(de)透明導電(dian)(dian)(dian)(dian)材料(liao)ITO--氧化金(jin)屬非常脆弱，觸(chu)(chu)(chu)摸(mo)幾下就會損壞(huai)，還(huan)不(bu)能直(zhi)(zhi)接用(yong)(yong)(yong)來(lai)作工(gong)作層(ceng)。材料(liao)的(de)(de)(de)(de)(de)(de)問題(ti)(ti)一(yi)時還(huan)難以解決，只(zhi)好委曲求(qiu)全：在外部(bu)增加一(yi)層(ceng)非常薄(bo)的(de)(de)(de)(de)(de)(de)堅硬玻璃(li)，它顯然(ran)是(shi)(shi)(shi)不(bu)能導電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)，直(zhi)(zhi)流(liu)是(shi)(shi)(shi)不(bu)行了(le)(le)，改(gai)用(yong)(yong)(yong)高頻交流(liu)信(xin)號，靠人(ren)的(de)(de)(de)(de)(de)(de)手(shou)指(zhi)頭(tou)（隔著(zhu)薄(bo)玻璃(li)）與工(gong)作面(mian)形成的(de)(de)(de)(de)(de)(de)耦(ou)(ou)合電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)來(lai)吸(xi)走一(yi)個交流(liu)電(dian)(dian)(dian)(dian)流(liu)，這(zhe)就是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)"電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)"名字(zi)的(de)(de)(de)(de)(de)(de)由來(lai)。 電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)之所以出(chu)現"漂移(yi)"的(de)(de)(de)(de)(de)(de)問題(ti)(ti)，是(shi)(shi)(shi)因(yin)為(wei)耦(ou)(ou)合電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)方(fang)式是(shi)(shi)(shi)不(bu)穩定的(de)(de)(de)(de)(de)(de)，它直(zhi)(zhi)接受(shou)溫度、濕度、手(shou)指(zhi)濕潤程(cheng)度、人(ren)體體重、地面(mian)干(gan)燥程(cheng)度影(ying)響(xiang)，受(shou)外界大面(mian)積物體的(de)(de)(de)(de)(de)(de)干(gan)擾也非常大，帶來(lai)了(le)(le)不(bu)穩定的(de)(de)(de)(de)(de)(de)結果(guo)，這(zhe)些都直(zhi)(zhi)接違背了(le)(le)作為(wei)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)這(zhe)種坐(zuo)標(biao)系統的(de)(de)(de)(de)(de)(de)基本要(yao)求(qiu)，不(bu)可(ke)(ke)避免的(de)(de)(de)(de)(de)(de)要(yao)產生漂移(yi)，有的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)欲求(qiu)通過25點(dian)校(xiao)準法(fa)(fa)甚(shen)至96點(dian)校(xiao)準法(fa)(fa)來(lai)解決漂移(yi)問題(ti)(ti)，其(qi)實是(shi)(shi)(shi)不(bu)可(ke)(ke)能的(de)(de)(de)(de)(de)(de)，漂移(yi)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)工(gong)作的(de)(de)(de)(de)(de)(de)這(zhe)種方(fang)式決定的(de)(de)(de)(de)(de)(de)，即使是(shi)(shi)(shi)在控(kong)制器的(de)(de)(de)(de)(de)(de)單片程(cheng)序上(shang)利用(yong)(yong)(yong)動態(tai)計(ji)算(suan)和經驗值查表，也只(zhi)能是(shi)(shi)(shi)治(zhi)標(biao)不(bu)治(zhi)本。 其(qi)實，多(duo)點(dian)校(xiao)準法(fa)(fa)最早是(shi)(shi)(shi)大屏(ping)(ping)(ping)幕投影(ying)觸(chu)(chu)(chu)摸(mo)板(ban)使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)方(fang)法(fa)(fa)，目的(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)消除坐(zuo)標(biao)對應的(de)(de)(de)(de)(de)(de)線xing失真(zhen)，電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)線xing失真(zhen)也非常厲害，主(zhu)要(yao)是(shi)(shi)(shi)因(yin)為(wei)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)屏(ping)(ping)(ping)的(de)(de)(de)(de)(de)(de)計(ji)算(suan)建立在四(si)(si)個電(dian)(dian)(dian)(dian)流(liu)量(liang)與觸(chu)(chu)(chu)摸(mo)點(dian)到四(si)(si)個電(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)(de)距(ju)離成比(bi)例的(de)(de)(de)(de)(de)(de)理(li)想狀態(tai)上(shang)，實際由于(yu)受(shou)環(huan)境(jing)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)、線路寄生電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)和不(bu)同人(ren)使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)影(ying)響(xiang)。
