電容觸(chu)(chu)摸屏(ping)(ping)(ping)的(de)(de)漂移(yi)問(wen)題(ti)(ti)。在觸(chu)(chu)摸屏(ping)(ping)(ping)產(chan)品中(zhong),電容觸(chu)(chu)摸屏(ping)(ping)(ping)是(shi)我(wo)們(men)常(chang)用(yong)(yong)的(de)(de)觸(chu)(chu)摸屏(ping)(ping)(ping)方式,那么,對于電容觸(chu)(chu)摸屏(ping)(ping)(ping)來說(shuo),其產(chan)品本身應用(yong)(yong)比較廣泛,但是(shi)也(ye)存(cun)在著(zhu)不少(shao)問(wen)題(ti)(ti)。而且(qie)由于現(xian)在科技的(de)(de)發展程度還無法完全(quan)解(jie)決(jue)觸(chu)(chu)摸屏(ping)(ping)(ping)產(chan)品在相關原(yuan)理上出現(xian)的(de)(de)問(wen)題(ti)(ti),所以(yi)對于這些問(wen)題(ti)(ti),目前(qian)還是(shi)普遍存(cun)在的(de)(de)。
在(zai)這里武(wu)漢(han)(han)公司(si)要跟大家討論的(de)(de)(de)(de)是(shi)(shi)(shi)(shi)關于(yu)電(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏的(de)(de)(de)(de)"漂(piao)移(yi)"問(wen)(wen)題,這個(ge)問(wen)(wen)題比較常見(jian),也是(shi)(shi)(shi)(shi)我們在(zai)解決(jue)產品問(wen)(wen)題時主要考慮(lv)的(de)(de)(de)(de)方(fang)(fang)面。 電(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏的(de)(de)(de)(de)漂(piao)移(yi)問(wen)(wen)題介紹! 武(wu)漢(han)(han)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏公司(si)提示,電(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏本身實際是(shi)(shi)(shi)(shi)一套精密的(de)(de)(de)(de)漏電(dian)傳感器,帶(dai)手(shou)套的(de)(de)(de)(de)手(shou)不(bu)(bu)能(neng)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo),由(you)于(yu)使用電(dian)容(rong)(rong)方(fang)(fang)式(shi),導致有(you)漂(piao)移(yi)現象。電(dian)容(rong)(rong)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏和電(dian)阻觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏都是(shi)(shi)(shi)(shi)電(dian)原理(li)工作方(fang)(fang)式(shi),電(dian)工作方(fang)(fang)式(shi)對于(yu)多(duo)點(dian)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo),不(bu)(bu)管是(shi)(shi)(shi)(shi)多(duo)少點(dian),也不(bu)(bu)管是(shi)(shi)(shi)(shi)連(lian)續的(de)(de)(de)(de)還(huan)是(shi)(shi)(shi)(shi)不(bu)(bu)連(lian)續的(de)(de)(de)(de)都是(shi)(shi)(shi)(shi)取多(duo)點(dian)觸(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)的(de)(de)(de)(de)中心點(dian)判(pan)斷,因為電(dian)流疊(die)加是(shi)(shi)(shi)(shi)分不(bu)(bu)出來誰(shui)是(shi)(shi)(shi)(shi)誰(shui)的(de)(de)(de)(de),沒(mei)有(you)辦法。
但是(shi)(shi),目前(qian)來說,電(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)仍然有不(bu)(bu)(bu)(bu)少問(wen)題存在(zai)。武漢公司信為,觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)目前(qian)的(de)(de)(de)(de)(de)(de)透明導電(dian)(dian)材(cai)料ITO--氧化金屬非(fei)常(chang)脆弱,觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)幾下就(jiu)會損壞(huai),還不(bu)(bu)(bu)(bu)能(neng)(neng)直(zhi)(zhi)接(jie)用來作(zuo)(zuo)工(gong)作(zuo)(zuo)層。材(cai)料的(de)(de)(de)(de)(de)(de)問(wen)題一(yi)時還難以(yi)(yi)解(jie)決(jue),只(zhi)好(hao)委曲(qu)求全:在(zai)外部增(zeng)加一(yi)層非(fei)常(chang)薄(bo)的(de)(de)(de)(de)(de)(de)堅硬玻(bo)璃(li)(li),它顯然是(shi)(shi)不(bu)(bu)(bu)(bu)能(neng)(neng)導電(dian)(dian)的(de)(de)(de)(de)(de)(de),直(zhi)(zhi)流是(shi)(shi)不(bu)(bu)(bu)(bu)行了,改(gai)用高頻交流信號,靠人(ren)的(de)(de)(de)(de)(de)(de)手(shou)指頭(隔著(zhu)薄(bo)玻(bo)璃(li)(li))與(yu)工(gong)作(zuo)(zuo)面形成的(de)(de)(de)(de)(de)(de)耦合電(dian)(dian)容(rong)(rong)來吸走一(yi)個交流電(dian)(dian)流,這(zhe)就(jiu)是(shi)(shi)電(dian)(dian)容(rong)(rong)屏(ping)"電(dian)(dian)容(rong)(rong)"名(ming)字的(de)(de)(de)(de)(de)(de)由(you)來。 電(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)之(zhi)所以(yi)(yi)出現"漂(piao)移(yi)(yi)"的(de)(de)(de)(de)(de)(de)問(wen)題,是(shi)(shi)因(yin)為耦合電(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)方式(shi)是(shi)(shi)不(bu)(bu)(bu)(bu)穩定的(de)(de)(de)(de)(de)(de),它直(zhi)(zhi)接(jie)受(shou)溫度、濕(shi)度、手(shou)指濕(shi)潤程(cheng)度、人(ren)體體重、地(di)面干燥程(cheng)度影(ying)響,受(shou)外界(jie)大面積物體的(de)(de)(de)(de)(de)(de)干擾也(ye)(ye)非(fei)常(chang)大,帶來了不(bu)(bu)(bu)(bu)穩定的(de)(de)(de)(de)(de)(de)結(jie)果,這(zhe)些都(dou)直(zhi)(zhi)接(jie)違背了作(zuo)(zuo)為觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)這(zhe)種坐(zuo)標(biao)系統的(de)(de)(de)(de)(de)(de)基本(ben)要(yao)求,不(bu)(bu)(bu)(bu)可避免(mian)的(de)(de)(de)(de)(de)(de)要(yao)產生漂(piao)移(yi)(yi),有的(de)(de)(de)(de)(de)(de)電(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)欲求通(tong)過25點(dian)校準(zhun)法甚至96點(dian)校準(zhun)法來解(jie)決(jue)漂(piao)移(yi)(yi)問(wen)題,其(qi)實(shi)是(shi)(shi)不(bu)(bu)(bu)(bu)可能(neng)(neng)的(de)(de)(de)(de)(de)(de),漂(piao)移(yi)(yi)是(shi)(shi)電(dian)(dian)容(rong)(rong)工(gong)作(zuo)(zuo)的(de)(de)(de)(de)(de)(de)這(zhe)種方式(shi)決(jue)定的(de)(de)(de)(de)(de)(de),即使(shi)是(shi)(shi)在(zai)控制器的(de)(de)(de)(de)(de)(de)單(dan)片程(cheng)序上利用動態(tai)計算和(he)經驗值(zhi)查表,也(ye)(ye)只(zhi)能(neng)(neng)是(shi)(shi)治標(biao)不(bu)(bu)(bu)(bu)治本(ben)。 其(qi)實(shi),多點(dian)校準(zhun)法最(zui)早是(shi)(shi)大屏(ping)幕投影(ying)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)板使(shi)用的(de)(de)(de)(de)(de)(de)方法,目的(de)(de)(de)(de)(de)(de)是(shi)(shi)消除坐(zuo)標(biao)對應的(de)(de)(de)(de)(de)(de)線xing失(shi)(shi)真,電(dian)(dian)容(rong)(rong)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)屏(ping)的(de)(de)(de)(de)(de)(de)線xing失(shi)(shi)真也(ye)(ye)非(fei)常(chang)厲害,主(zhu)要(yao)是(shi)(shi)因(yin)為電(dian)(dian)容(rong)(rong)屏(ping)的(de)(de)(de)(de)(de)(de)計算建(jian)立在(zai)四(si)(si)個電(dian)(dian)流量與(yu)觸(chu)(chu)(chu)(chu)(chu)摸(mo)(mo)(mo)(mo)點(dian)到四(si)(si)個電(dian)(dian)極的(de)(de)(de)(de)(de)(de)距(ju)離(li)成比例的(de)(de)(de)(de)(de)(de)理想狀態(tai)上,實(shi)際(ji)由(you)于受(shou)環(huan)境(jing)電(dian)(dian)容(rong)(rong)、線路寄生電(dian)(dian)容(rong)(rong)和(he)不(bu)(bu)(bu)(bu)同(tong)人(ren)使(shi)用的(de)(de)(de)(de)(de)(de)影(ying)響。