電(dian)容(rong)觸(chu)摸屏(ping)(ping)的(de)漂移問(wen)題(ti)。在(zai)(zai)(zai)觸(chu)摸屏(ping)(ping)產品中(zhong)，電(dian)容(rong)觸(chu)摸屏(ping)(ping)是(shi)我們常用的(de)觸(chu)摸屏(ping)(ping)方式，那么，對(dui)于電(dian)容(rong)觸(chu)摸屏(ping)(ping)來說，其產品本(ben)身應用比(bi)較廣泛，但是(shi)也存(cun)在(zai)(zai)(zai)著不少問(wen)題(ti)。而且由于現(xian)在(zai)(zai)(zai)科技的(de)發展(zhan)程度還(huan)無(wu)法完全解(jie)決觸(chu)摸屏(ping)(ping)產品在(zai)(zai)(zai)相關原理上(shang)出現(xian)的(de)問(wen)題(ti)，所以對(dui)于這些(xie)問(wen)題(ti)，目前還(huan)是(shi)普遍(bian)存(cun)在(zai)(zai)(zai)的(de)。
在這里武(wu)漢公(gong)司要(yao)跟(gen)大家討論的(de)(de)(de)(de)是(shi)(shi)關于電(dian)(dian)容觸(chu)(chu)摸(mo)(mo)屏的(de)(de)(de)(de)"漂移(yi)"問(wen)(wen)題，這個問(wen)(wen)題比較常見，也(ye)是(shi)(shi)我們在解決(jue)產品問(wen)(wen)題時(shi)主要(yao)考慮的(de)(de)(de)(de)方(fang)面。 電(dian)(dian)容觸(chu)(chu)摸(mo)(mo)屏的(de)(de)(de)(de)漂移(yi)問(wen)(wen)題介紹！ 武(wu)漢觸(chu)(chu)摸(mo)(mo)屏公(gong)司提(ti)示(shi)，電(dian)(dian)容觸(chu)(chu)摸(mo)(mo)屏本(ben)身實際是(shi)(shi)一(yi)套精密的(de)(de)(de)(de)漏電(dian)(dian)傳感器，帶手(shou)套的(de)(de)(de)(de)手(shou)不(bu)能觸(chu)(chu)摸(mo)(mo)，由于使用電(dian)(dian)容方(fang)式，導致有(you)漂移(yi)現(xian)象。電(dian)(dian)容觸(chu)(chu)摸(mo)(mo)屏和電(dian)(dian)阻(zu)觸(chu)(chu)摸(mo)(mo)屏都(dou)是(shi)(shi)電(dian)(dian)原理(li)工(gong)作方(fang)式，電(dian)(dian)工(gong)作方(fang)式對于多點(dian)(dian)觸(chu)(chu)摸(mo)(mo)，不(bu)管是(shi)(shi)多少點(dian)(dian)，也(ye)不(bu)管是(shi)(shi)連續(xu)的(de)(de)(de)(de)還(huan)是(shi)(shi)不(bu)連續(xu)的(de)(de)(de)(de)都(dou)是(shi)(shi)取(qu)多點(dian)(dian)觸(chu)(chu)摸(mo)(mo)的(de)(de)(de)(de)中心點(dian)(dian)判斷，因為電(dian)(dian)流疊加是(shi)(shi)分不(bu)出(chu)來誰是(shi)(shi)誰的(de)(de)(de)(de)，沒有(you)辦法(fa)。
但是(shi)(shi)(shi)(shi)，目前來(lai)(lai)說，電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)仍然(ran)(ran)有不(bu)少(shao)問(wen)(wen)題存在(zai)(zai)。武漢公司信(xin)為，觸(chu)(chu)摸(mo)(mo)屏(ping)目前的(de)(de)(de)(de)(de)透明導(dao)電(dian)(dian)(dian)(dian)材料ITO--氧(yang)化(hua)金屬非(fei)常脆弱，觸(chu)(chu)摸(mo)(mo)幾下就(jiu)會損(sun)壞，還不(bu)能(neng)直接用(yong)(yong)(yong)來(lai)(lai)作(zuo)(zuo)(zuo)工(gong)(gong)作(zuo)(zuo)(zuo)層。材料的(de)(de)(de)(de)(de)問(wen)(wen)題一(yi)時還難(nan)以(yi)(yi)解(jie)決(jue)，只(zhi)好委曲(qu)求全(quan)：在(zai)(zai)外部增加(jia)一(yi)層非(fei)常薄的(de)(de)(de)(de)(de)堅硬玻璃，它顯(xian)然(ran)(ran)是(shi)(shi)(shi)(shi)不(bu)能(neng)導(dao)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)，直流(liu)(liu)是(shi)(shi)(shi)(shi)不(bu)行了，改用(yong)(yong)(yong)高(gao)頻(pin)交流(liu)(liu)信(xin)號，靠人(ren)(ren)的(de)(de)(de)(de)(de)手(shou)指頭（隔(ge)著薄玻璃）與工(gong)(gong)作(zuo)(zuo)(zuo)面形(xing)成的(de)(de)(de)(de)(de)耦合電(dian)(dian)(dian)(dian)容(rong)(rong)來(lai)(lai)吸走一(yi)個交流(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)，這(zhe)就(jiu)是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)"電(dian)(dian)(dian)(dian)容(rong)(rong)"名字(zi)的(de)(de)(de)(de)(de)由來(lai)(lai)。 電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)之所(suo)以(yi)(yi)出現"漂(piao)移"的(de)(de)(de)(de)(de)問(wen)(wen)題，是(shi)(shi)(shi)(shi)因為耦合電(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)方(fang)式是(shi)(shi)(shi)(shi)不(bu)穩定(ding)的(de)(de)(de)(de)(de)，它直接受(shou)溫度(du)、濕度(du)、手(shou)指濕潤程(cheng)度(du)、人(ren)(ren)體(ti)體(ti)重、地面干燥程(cheng)度(du)影響，受(shou)外界大面積(ji)物體(ti)的(de)(de)(de)(de)(de)干擾也非(fei)常大，帶來(lai)(lai)了不(bu)穩定(ding)的(de)(de)(de)(de)(de)結果(guo)，這(zhe)些都(dou)直接違背了作(zuo)(zuo)(zuo)為觸(chu)(chu)摸(mo)(mo)屏(ping)這(zhe)種坐標系統的(de)(de)(de)(de)(de)基本要(yao)求，不(bu)可(ke)避免的(de)(de)(de)(de)(de)要(yao)產生(sheng)漂(piao)移，有的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)欲求通過25點(dian)校準法甚至(zhi)96點(dian)校準法來(lai)(lai)解(jie)決(jue)漂(piao)移問(wen)(wen)題，其(qi)實是(shi)(shi)(shi)(shi)不(bu)可(ke)能(neng)的(de)(de)(de)(de)(de)，漂(piao)移是(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)工(gong)(gong)作(zuo)(zuo)(zuo)的(de)(de)(de)(de)(de)這(zhe)種方(fang)式決(jue)定(ding)的(de)(de)(de)(de)(de)，即使是(shi)(shi)(shi)(shi)在(zai)(zai)控制(zhi)器的(de)(de)(de)(de)(de)單片程(cheng)序(xu)上(shang)利用(yong)(yong)(yong)動態計算(suan)和(he)經驗值查表(biao)，也只(zhi)能(neng)是(shi)(shi)(shi)(shi)治標不(bu)治本。 其(qi)實，多點(dian)校準法最早是(shi)(shi)(shi)(shi)大屏(ping)幕投(tou)影觸(chu)(chu)摸(mo)(mo)板使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)方(fang)法，目的(de)(de)(de)(de)(de)是(shi)(shi)(shi)(shi)消除坐標對應的(de)(de)(de)(de)(de)線(xian)xing失(shi)真，電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)的(de)(de)(de)(de)(de)線(xian)xing失(shi)真也非(fei)常厲害(hai)，主要(yao)是(shi)(shi)(shi)(shi)因為電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)的(de)(de)(de)(de)(de)計算(suan)建立在(zai)(zai)四個電(dian)(dian)(dian)(dian)流(liu)(liu)量與觸(chu)(chu)摸(mo)(mo)點(dian)到四個電(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)(de)距離成比例的(de)(de)(de)(de)(de)理想狀態上(shang)，實際由于受(shou)環境電(dian)(dian)(dian)(dian)容(rong)(rong)、線(xian)路寄(ji)生(sheng)電(dian)(dian)(dian)(dian)容(rong)(rong)和(he)不(bu)同(tong)人(ren)(ren)使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)影響。
