電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)的(de)漂移(yi)問題。在觸(chu)摸(mo)屏(ping)(ping)產品中(zhong)，電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)是(shi)我(wo)們(men)常用(yong)的(de)觸(chu)摸(mo)屏(ping)(ping)方式，那么，對于電(dian)(dian)容(rong)觸(chu)摸(mo)屏(ping)(ping)來說(shuo)，其(qi)產品本身應用(yong)比較廣泛，但是(shi)也存(cun)在著不少問題。而且由于現(xian)在科技的(de)發展程度還無法完全解(jie)決觸(chu)摸(mo)屏(ping)(ping)產品在相關原理上出(chu)現(xian)的(de)問題，所以(yi)對于這些問題，目前還是(shi)普遍存(cun)在的(de)。
在(zai)(zai)這里(li)武漢公(gong)司要(yao)(yao)跟(gen)大家討論的(de)(de)是關(guan)于電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)的(de)(de)"漂(piao)移(yi)"問(wen)題，這個問(wen)題比較常見，也(ye)是我們在(zai)(zai)解決(jue)產品問(wen)題時主要(yao)(yao)考慮(lv)的(de)(de)方(fang)面。 電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)的(de)(de)漂(piao)移(yi)問(wen)題介紹！ 武漢觸(chu)(chu)摸(mo)(mo)屏(ping)公(gong)司提示，電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)本身(shen)實際是一(yi)套精(jing)密的(de)(de)漏電(dian)(dian)(dian)傳感器，帶手套的(de)(de)手不(bu)(bu)(bu)能觸(chu)(chu)摸(mo)(mo)，由于使用電(dian)(dian)(dian)容(rong)方(fang)式(shi)(shi)，導(dao)致(zhi)有漂(piao)移(yi)現象。電(dian)(dian)(dian)容(rong)觸(chu)(chu)摸(mo)(mo)屏(ping)和電(dian)(dian)(dian)阻觸(chu)(chu)摸(mo)(mo)屏(ping)都是電(dian)(dian)(dian)原理工(gong)(gong)作方(fang)式(shi)(shi)，電(dian)(dian)(dian)工(gong)(gong)作方(fang)式(shi)(shi)對于多點(dian)觸(chu)(chu)摸(mo)(mo)，不(bu)(bu)(bu)管(guan)是多少點(dian)，也(ye)不(bu)(bu)(bu)管(guan)是連(lian)(lian)續(xu)的(de)(de)還是不(bu)(bu)(bu)連(lian)(lian)續(xu)的(de)(de)都是取多點(dian)觸(chu)(chu)摸(mo)(mo)的(de)(de)中心點(dian)判斷，因(yin)為電(dian)(dian)(dian)流疊加是分不(bu)(bu)(bu)出來(lai)誰(shui)(shui)是誰(shui)(shui)的(de)(de)，沒(mei)有辦(ban)法。
但是(shi)(shi)(shi)，目前來(lai)(lai)(lai)說，電(dian)(dian)(dian)(dian)容(rong)(rong)觸摸(mo)屏(ping)(ping)仍(reng)然有(you)不(bu)(bu)(bu)(bu)少問(wen)題(ti)(ti)(ti)存在(zai)。武漢公司信(xin)(xin)為(wei)，觸摸(mo)屏(ping)(ping)目前的(de)(de)(de)(de)(de)透明導電(dian)(dian)(dian)(dian)材料(liao)ITO--氧化金屬非(fei)常脆弱，觸摸(mo)幾下就(jiu)會(hui)損壞，還(huan)(huan)不(bu)(bu)(bu)(bu)能(neng)直接用(yong)來(lai)(lai)(lai)作工作層(ceng)。材料(liao)的(de)(de)(de)(de)(de)問(wen)題(ti)(ti)(ti)一(yi)(yi)時還(huan)(huan)難以解(jie)決(jue)，只好(hao)委(wei)曲求(qiu)全：在(zai)外部增加一(yi)(yi)層(ceng)非(fei)常薄的(de)(de)(de)(de)(de)堅硬玻璃(li)，它(ta)顯然是(shi)(shi)(shi)不(bu)(bu)(bu)(bu)能(neng)導電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)，直流(liu)是(shi)(shi)(shi)不(bu)(bu)(bu)(bu)行了，改(gai)用(yong)高頻交流(liu)信(xin)(xin)號，靠(kao)人(ren)(ren)的(de)(de)(de)(de)(de)手指頭（隔著薄玻璃(li)）與工作面(mian)形成(cheng)的(de)(de)(de)(de)(de)耦(ou)合電(dian)(dian)(dian)(dian)容(rong)(rong)來(lai)(lai)(lai)吸走一(yi)(yi)個交流(liu)電(dian)(dian)(dian)(dian)流(liu)，這(zhe)(zhe)(zhe)就(jiu)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)(ping)"電(dian)(dian)(dian)(dian)容(rong)(rong)"名(ming)字的(de)(de)(de)(de)(de)由(you)來(lai)(lai)(lai)。 電(dian)(dian)(dian)(dian)容(rong)(rong)觸摸(mo)屏(ping)(ping)之所(suo)以出現"漂(piao)移(yi)"的(de)(de)(de)(de)(de)問(wen)題(ti)(ti)(ti)，是(shi)(shi)(shi)因為(wei)耦(ou)合電(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)方(fang)(fang)式是(shi)(shi)(shi)不(bu)(bu)(bu)(bu)穩(wen)定(ding)的(de)(de)(de)(de)(de)，它(ta)直接受溫度(du)、濕度(du)、手指濕潤程度(du)、人(ren)(ren)體體重(zhong)、地面(mian)干燥(zao)程度(du)影響，受外界大面(mian)積物體的(de)(de)(de)(de)(de)干擾也非(fei)常大，帶來(lai)(lai)(lai)了不(bu)(bu)(bu)(bu)穩(wen)定(ding)的(de)(de)(de)(de)(de)結果，這(zhe)(zhe)(zhe)些都直接違背(bei)了作為(wei)觸摸(mo)屏(ping)(ping)這(zhe)(zhe)(zhe)種(zhong)坐標系統的(de)(de)(de)(de)(de)基(ji)本要(yao)求(qiu)，不(bu)(bu)(bu)(bu)可避免(mian)的(de)(de)(de)(de)(de)要(yao)產生漂(piao)移(yi)，有(you)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)觸摸(mo)屏(ping)(ping)欲(yu)求(qiu)通過25點校準法(fa)甚(shen)至96點校準法(fa)來(lai)(lai)(lai)解(jie)決(jue)漂(piao)移(yi)問(wen)題(ti)(ti)(ti)，其實(shi)是(shi)(shi)(shi)不(bu)(bu)(bu)(bu)可能(neng)的(de)(de)(de)(de)(de)，漂(piao)移(yi)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)容(rong)(rong)工作的(de)(de)(de)(de)(de)這(zhe)(zhe)(zhe)種(zhong)方(fang)(fang)式決(jue)定(ding)的(de)(de)(de)(de)(de)，即使(shi)是(shi)(shi)(shi)在(zai)控制器的(de)(de)(de)(de)(de)單片程序上利用(yong)動態計算和(he)經驗值查表，也只能(neng)是(shi)(shi)(shi)治標不(bu)(bu)(bu)(bu)治本。 其實(shi)，多點校準法(fa)最早是(shi)(shi)(shi)大屏(ping)(ping)幕投影觸摸(mo)板使(shi)用(yong)的(de)(de)(de)(de)(de)方(fang)(fang)法(fa)，目的(de)(de)(de)(de)(de)是(shi)(shi)(shi)消除坐標對應的(de)(de)(de)(de)(de)線(xian)xing失真，電(dian)(dian)(dian)(dian)容(rong)(rong)觸摸(mo)屏(ping)(ping)的(de)(de)(de)(de)(de)線(xian)xing失真也非(fei)常厲害(hai)，主要(yao)是(shi)(shi)(shi)因為(wei)電(dian)(dian)(dian)(dian)容(rong)(rong)屏(ping)(ping)的(de)(de)(de)(de)(de)計算建立(li)在(zai)四個電(dian)(dian)(dian)(dian)流(liu)量與觸摸(mo)點到(dao)四個電(dian)(dian)(dian)(dian)極的(de)(de)(de)(de)(de)距離成(cheng)比例的(de)(de)(de)(de)(de)理想狀(zhuang)態上，實(shi)際(ji)由(you)于受環境電(dian)(dian)(dian)(dian)容(rong)(rong)、線(xian)路寄生電(dian)(dian)(dian)(dian)容(rong)(rong)和(he)不(bu)(bu)(bu)(bu)同(tong)人(ren)(ren)使(shi)用(yong)的(de)(de)(de)(de)(de)影響。
