電容(rong)觸(chu)摸(mo)屏的漂移問題(ti)。在觸(chu)摸(mo)屏產(chan)品中,電容(rong)觸(chu)摸(mo)屏是(shi)我們常用的觸(chu)摸(mo)屏方式,那(nei)么,對(dui)于(yu)電容(rong)觸(chu)摸(mo)屏來說,其產(chan)品本身應用比較廣(guang)泛,但是(shi)也存(cun)在著(zhu)不少問題(ti)。而且(qie)由于(yu)現在科技的發展程度還(huan)無法完(wan)全(quan)解決觸(chu)摸(mo)屏產(chan)品在相(xiang)關原(yuan)理(li)上出現的問題(ti),所以(yi)對(dui)于(yu)這些問題(ti),目前還(huan)是(shi)普遍存(cun)在的。
在這里(li)武(wu)漢(han)公司要(yao)跟(gen)大家(jia)討論的(de)(de)(de)是(shi)(shi)關(guan)于(yu)(yu)(yu)電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)(ping)的(de)(de)(de)"漂(piao)(piao)移"問(wen)題(ti),這個問(wen)題(ti)比較常見,也是(shi)(shi)我們(men)在解決(jue)產品問(wen)題(ti)時主(zhu)要(yao)考(kao)慮(lv)的(de)(de)(de)方面。 電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)(ping)的(de)(de)(de)漂(piao)(piao)移問(wen)題(ti)介紹! 武(wu)漢(han)觸(chu)摸(mo)(mo)屏(ping)(ping)公司提示,電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)(ping)本身實際是(shi)(shi)一(yi)套(tao)精(jing)密的(de)(de)(de)漏(lou)電(dian)(dian)(dian)(dian)傳(chuan)感(gan)器(qi),帶手(shou)套(tao)的(de)(de)(de)手(shou)不(bu)能觸(chu)摸(mo)(mo),由于(yu)(yu)(yu)使用電(dian)(dian)(dian)(dian)容(rong)(rong)方式,導致有漂(piao)(piao)移現象。電(dian)(dian)(dian)(dian)容(rong)(rong)觸(chu)摸(mo)(mo)屏(ping)(ping)和電(dian)(dian)(dian)(dian)阻觸(chu)摸(mo)(mo)屏(ping)(ping)都是(shi)(shi)電(dian)(dian)(dian)(dian)原理工作(zuo)方式,電(dian)(dian)(dian)(dian)工作(zuo)方式對于(yu)(yu)(yu)多點觸(chu)摸(mo)(mo),不(bu)管(guan)是(shi)(shi)多少點,也不(bu)管(guan)是(shi)(shi)連(lian)續(xu)的(de)(de)(de)還(huan)是(shi)(shi)不(bu)連(lian)續(xu)的(de)(de)(de)都是(shi)(shi)取(qu)多點觸(chu)摸(mo)(mo)的(de)(de)(de)中心點判斷,因為電(dian)(dian)(dian)(dian)流疊加是(shi)(shi)分(fen)不(bu)出來誰是(shi)(shi)誰的(de)(de)(de),沒有辦法。
但是(shi)(shi),目前來說,電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏仍(reng)然有(you)不(bu)少問題(ti)存在(zai)(zai)(zai)。武漢(han)公司(si)信(xin)為(wei),觸(chu)(chu)(chu)摸(mo)屏目前的(de)(de)(de)(de)(de)(de)透明導電(dian)(dian)(dian)材料ITO--氧(yang)化(hua)金(jin)屬非(fei)常脆弱(ruo),觸(chu)(chu)(chu)摸(mo)幾下就會損壞,還(huan)不(bu)能(neng)(neng)直接(jie)用來作(zuo)(zuo)工作(zuo)(zuo)層(ceng)。材料的(de)(de)(de)(de)(de)(de)問題(ti)一(yi)時還(huan)難(nan)以(yi)解(jie)決,只(zhi)好(hao)委曲求全(quan):在(zai)(zai)(zai)外(wai)部增(zeng)加一(yi)層(ceng)非(fei)常薄(bo)的(de)(de)(de)(de)(de)(de)堅硬(ying)玻璃,它顯然是(shi)(shi)不(bu)能(neng)(neng)導電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de),直流(liu)是(shi)(shi)不(bu)行了(le)(le),改用高頻交流(liu)信(xin)號,靠人(ren)的(de)(de)(de)(de)(de)(de)手指頭(隔著薄(bo)玻璃)與工作(zuo)(zuo)面(mian)形成(cheng)的(de)(de)(de)(de)(de)(de)耦(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)來吸(xi)走一(yi)個交流(liu)電(dian)(dian)(dian)流(liu),這(zhe)就是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)屏"電(dian)(dian)(dian)容(rong)(rong)"名字(zi)的(de)(de)(de)(de)(de)(de)由來。 電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏之所以(yi)出現"漂(piao)(piao)移"的(de)(de)(de)(de)(de)(de)問題(ti),是(shi)(shi)因為(wei)耦(ou)合(he)電(dian)(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)方(fang)式是(shi)(shi)不(bu)穩定的(de)(de)(de)(de)(de)(de),它直接(jie)受(shou)溫度、濕度、手指濕潤(run)程度、人(ren)體(ti)體(ti)重、地(di)面(mian)干燥程度影(ying)響,受(shou)外(wai)界大面(mian)積(ji)物體(ti)的(de)(de)(de)(de)(de)(de)干擾也非(fei)常大,帶(dai)來了(le)(le)不(bu)穩定的(de)(de)(de)(de)(de)(de)結(jie)果(guo),這(zhe)些都(dou)直接(jie)違背了(le)(le)作(zuo)(zuo)為(wei)觸(chu)(chu)(chu)摸(mo)屏這(zhe)種(zhong)(zhong)坐(zuo)標系(xi)統的(de)(de)(de)(de)(de)(de)基本要求,不(bu)可避免的(de)(de)(de)(de)(de)(de)要產生漂(piao)(piao)移,有(you)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏欲求通過25點(dian)校(xiao)準(zhun)法(fa)甚至96點(dian)校(xiao)準(zhun)法(fa)來解(jie)決漂(piao)(piao)移問題(ti),其實是(shi)(shi)不(bu)可能(neng)(neng)的(de)(de)(de)(de)(de)(de),漂(piao)(piao)移是(shi)(shi)電(dian)(dian)(dian)容(rong)(rong)工作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)這(zhe)種(zhong)(zhong)方(fang)式決定的(de)(de)(de)(de)(de)(de),即使(shi)是(shi)(shi)在(zai)(zai)(zai)控制器的(de)(de)(de)(de)(de)(de)單片(pian)程序上利(li)用動態(tai)計算和經(jing)驗值查(cha)表,也只(zhi)能(neng)(neng)是(shi)(shi)治(zhi)標不(bu)治(zhi)本。 其實,多點(dian)校(xiao)準(zhun)法(fa)最早是(shi)(shi)大屏幕(mu)投(tou)影(ying)觸(chu)(chu)(chu)摸(mo)板(ban)使(shi)用的(de)(de)(de)(de)(de)(de)方(fang)法(fa),目的(de)(de)(de)(de)(de)(de)是(shi)(shi)消除坐(zuo)標對應的(de)(de)(de)(de)(de)(de)線(xian)xing失(shi)(shi)真(zhen),電(dian)(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)屏的(de)(de)(de)(de)(de)(de)線(xian)xing失(shi)(shi)真(zhen)也非(fei)常厲(li)害,主要是(shi)(shi)因為(wei)電(dian)(dian)(dian)容(rong)(rong)屏的(de)(de)(de)(de)(de)(de)計算建(jian)立在(zai)(zai)(zai)四個電(dian)(dian)(dian)流(liu)量(liang)與觸(chu)(chu)(chu)摸(mo)點(dian)到四個電(dian)(dian)(dian)極的(de)(de)(de)(de)(de)(de)距離成(cheng)比例(li)的(de)(de)(de)(de)(de)(de)理想狀態(tai)上,實際由于(yu)受(shou)環境電(dian)(dian)(dian)容(rong)(rong)、線(xian)路寄生電(dian)(dian)(dian)容(rong)(rong)和不(bu)同人(ren)使(shi)用的(de)(de)(de)(de)(de)(de)影(ying)響。