電(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)的(de)漂移問題(ti)(ti)。在觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)產品(pin)中，電(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)是(shi)我們常(chang)用的(de)觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)方式，那么，對于(yu)電(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)來說，其產品(pin)本身應用比較廣泛，但是(shi)也存(cun)在著不少問題(ti)(ti)。而且(qie)由于(yu)現在科技的(de)發展程度還無法完全解決觸(chu)(chu)(chu)(chu)摸(mo)(mo)屏(ping)(ping)產品(pin)在相關原理上(shang)出(chu)現的(de)問題(ti)(ti)，所以對于(yu)這些問題(ti)(ti)，目前(qian)還是(shi)普(pu)遍存(cun)在的(de)。
在這(zhe)(zhe)里(li)武漢(han)公(gong)司(si)要跟大家討(tao)論的(de)(de)(de)是(shi)(shi)(shi)(shi)關于電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸屏的(de)(de)(de)"漂移(yi)"問(wen)題，這(zhe)(zhe)個問(wen)題比較常見，也是(shi)(shi)(shi)(shi)我們(men)在解決(jue)產品(pin)問(wen)題時主要考慮的(de)(de)(de)方(fang)面。 電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸屏的(de)(de)(de)漂移(yi)問(wen)題介紹！ 武漢(han)觸(chu)(chu)摸屏公(gong)司(si)提示(shi)，電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸屏本身實際(ji)是(shi)(shi)(shi)(shi)一套(tao)精密的(de)(de)(de)漏電(dian)(dian)(dian)傳(chuan)感(gan)器，帶手套(tao)的(de)(de)(de)手不(bu)(bu)(bu)能(neng)觸(chu)(chu)摸，由于使用電(dian)(dian)(dian)容(rong)方(fang)式，導(dao)致(zhi)有(you)漂移(yi)現象。電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸屏和電(dian)(dian)(dian)阻觸(chu)(chu)摸屏都(dou)是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)原(yuan)理工(gong)作方(fang)式，電(dian)(dian)(dian)工(gong)作方(fang)式對于多(duo)點(dian)觸(chu)(chu)摸，不(bu)(bu)(bu)管是(shi)(shi)(shi)(shi)多(duo)少點(dian)，也不(bu)(bu)(bu)管是(shi)(shi)(shi)(shi)連(lian)續(xu)(xu)的(de)(de)(de)還是(shi)(shi)(shi)(shi)不(bu)(bu)(bu)連(lian)續(xu)(xu)的(de)(de)(de)都(dou)是(shi)(shi)(shi)(shi)取多(duo)點(dian)觸(chu)(chu)摸的(de)(de)(de)中心點(dian)判斷，因為(wei)電(dian)(dian)(dian)流疊加是(shi)(shi)(shi)(shi)分不(bu)(bu)(bu)出(chu)來誰是(shi)(shi)(shi)(shi)誰的(de)(de)(de)，沒有(you)辦(ban)法。
但是(shi)(shi)，目(mu)(mu)(mu)前(qian)來(lai)(lai)說，電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸屏(ping)仍然有不(bu)(bu)(bu)少問題(ti)存在。武漢公司信為，觸(chu)(chu)(chu)摸屏(ping)目(mu)(mu)(mu)前(qian)的(de)(de)(de)(de)(de)(de)(de)透明(ming)導(dao)(dao)電(dian)(dian)(dian)材(cai)料ITO--氧(yang)化金屬非(fei)(fei)常(chang)脆弱(ruo)，觸(chu)(chu)(chu)摸幾下就會損壞，還不(bu)(bu)(bu)能直(zhi)接用(yong)來(lai)(lai)作工(gong)作層(ceng)。材(cai)料的(de)(de)(de)(de)(de)(de)(de)問題(ti)一(yi)時還難以解(jie)決(jue)(jue)，只(zhi)好委曲求全：在外部增加一(yi)層(ceng)非(fei)(fei)常(chang)薄(bo)的(de)(de)(de)(de)(de)(de)(de)堅硬玻璃(li)，它(ta)顯然是(shi)(shi)不(bu)(bu)(bu)能導(dao)(dao)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)，直(zhi)流(liu)是(shi)(shi)不(bu)(bu)(bu)行了(le)，改用(yong)高頻交流(liu)信號(hao)，靠人(ren)的(de)(de)(de)(de)(de)(de)(de)手指(zhi)頭（隔著薄(bo)玻璃(li)）與(yu)工(gong)作面(mian)形成(cheng)的(de)(de)(de)(de)(de)(de)(de)耦(ou)(ou)合電(dian)(dian)(dian)容(rong)(rong)來(lai)(lai)吸走一(yi)個(ge)交流(liu)電(dian)(dian)(dian)流(liu)，這(zhe)就是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)屏(ping)"電(dian)(dian)(dian)容(rong)(rong)"名(ming)字(zi)的(de)(de)(de)(de)(de)(de)(de)由來(lai)(lai)。 電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸屏(ping)之所(suo)以出現"漂(piao)移(yi)"的(de)(de)(de)(de)(de)(de)(de)問題(ti)，是(shi)(shi)因為耦(ou)(ou)合電(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)(de)方(fang)式(shi)是(shi)(shi)不(bu)(bu)(bu)穩定的(de)(de)(de)(de)(de)(de)(de)，它(ta)直(zhi)接受(shou)溫度、濕(shi)度、手指(zhi)濕(shi)潤程(cheng)(cheng)(cheng)度、人(ren)體體重、地(di)面(mian)干(gan)燥程(cheng)(cheng)(cheng)度影(ying)響，受(shou)外界大(da)(da)面(mian)積物體的(de)(de)(de)(de)(de)(de)(de)干(gan)擾也(ye)非(fei)(fei)常(chang)大(da)(da)，帶來(lai)(lai)了(le)不(bu)(bu)(bu)穩定的(de)(de)(de)(de)(de)(de)(de)結果，這(zhe)些都直(zhi)接違(wei)背了(le)作為觸(chu)(chu)(chu)摸屏(ping)這(zhe)種(zhong)坐標(biao)系(xi)統(tong)的(de)(de)(de)(de)(de)(de)(de)基本要(yao)求，不(bu)(bu)(bu)可避免的(de)(de)(de)(de)(de)(de)(de)要(yao)產(chan)生漂(piao)移(yi)，有的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸屏(ping)欲求通過25點(dian)(dian)校準法(fa)(fa)甚至96點(dian)(dian)校準法(fa)(fa)來(lai)(lai)解(jie)決(jue)(jue)漂(piao)移(yi)問題(ti)，其實是(shi)(shi)不(bu)(bu)(bu)可能的(de)(de)(de)(de)(de)(de)(de)，漂(piao)移(yi)是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)工(gong)作的(de)(de)(de)(de)(de)(de)(de)這(zhe)種(zhong)方(fang)式(shi)決(jue)(jue)定的(de)(de)(de)(de)(de)(de)(de)，即使是(shi)(shi)在控制器(qi)的(de)(de)(de)(de)(de)(de)(de)單片程(cheng)(cheng)(cheng)序上利用(yong)動態(tai)計算(suan)(suan)和經驗值查表，也(ye)只(zhi)能是(shi)(shi)治(zhi)標(biao)不(bu)(bu)(bu)治(zhi)本。 其實，多點(dian)(dian)校準法(fa)(fa)最早(zao)是(shi)(shi)大(da)(da)屏(ping)幕(mu)投影(ying)觸(chu)(chu)(chu)摸板(ban)使用(yong)的(de)(de)(de)(de)(de)(de)(de)方(fang)法(fa)(fa)，目(mu)(mu)(mu)的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)消除坐標(biao)對(dui)應的(de)(de)(de)(de)(de)(de)(de)線xing失真，電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸屏(ping)的(de)(de)(de)(de)(de)(de)(de)線xing失真也(ye)非(fei)(fei)常(chang)厲(li)害，主要(yao)是(shi)(shi)因為電(dian)(dian)(dian)容(rong)(rong)屏(ping)的(de)(de)(de)(de)(de)(de)(de)計算(suan)(suan)建立在四個(ge)電(dian)(dian)(dian)流(liu)量與(yu)觸(chu)(chu)(chu)摸點(dian)(dian)到四個(ge)電(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)(de)(de)(de)距(ju)離成(cheng)比(bi)例的(de)(de)(de)(de)(de)(de)(de)理想狀態(tai)上，實際由于受(shou)環(huan)境電(dian)(dian)(dian)容(rong)(rong)、線路(lu)寄生電(dian)(dian)(dian)容(rong)(rong)和不(bu)(bu)(bu)同人(ren)使用(yong)的(de)(de)(de)(de)(de)(de)(de)影(ying)響。
