Rau lub ntsiav tshuaj lossis lub xov tooj smartphone, lub vijtsam kov tsis yog tsuas yog txhais tau tias kev nthuav tawm cov ntaub ntawv, tab sis kuj tseem tswj hwm lub cuab yeej, uas yog qhov tseem ceeb heev. Thawj cov zaub zoo li no tau tsim rov qab rau xyoo pua xya ntawm lub xyoo pua xeem, thiab tau pib siv rau hauv game consoles thiab smartphones. Conventionally, tag nrho cov sensors feem ntau muab faib ua capacitive thiab resistive. Resistive technology yog outdated hnub no, tab sis nws yog siv heev dav, uas yuav txo tau tus nqi ntawm tus nqi kawg ntawm cov cuab yeej. Cov thev naus laus zis no suav nrog kev siv ntau dua lossis tsawg dua cov khoom ntse rau kev sib cuag nrog lub vijtsam, txawm li cas los xij, cov npe ntawm qhov zoo ntawm cov khoom siv no xaus nrog kev pheej yig thiab ntau yam khoom siv tswj.
Capacitive touch screens yog qhov txawv ntawm qhov tseeb tias lub gadget tuaj yeem tswj tau tsuas yog thaum siv cov khoom uas muaj lub peev xwm loj uas ua rau tam sim no. Qhov screen nws tus kheej yog tsim nyob rau hauv daim ntawv ntawm ib tug iav vaj huam sib luag coated nrog ib tug resistivecov ntaub ntawv uas muaj qhov txaus siab ntawm pob tshab. Thaum lub vijtsam kov nrog cov ntiv tes lossis lwm yam khoom uas ua rau tam sim no, cov dej xau tam sim no tshwm sim, uas tau sau npe los ntawm electrodes nyob ntawm cov ces kaum ntawm cov panels. Capacitive touchscreens yog nruab nrog cov tswj uas sau npe rau qhov kov taw tes. Yog li nws hloov tawm qhov kov mus rau ib qho chaw. Capacitive kov cov ntxaij vab tshaus muaj kev ntseeg siab, tso cai tsawg kawg yog ob puas lab kov.
Koj tuaj yeem xav txog lwm yam kev xaiv ntawm hom no. Lub capacitive kov npo hom tau dhau los ua tus tsim ntawm cov thev naus laus zis xws li kev ua haujlwm capacitive. Ntawm no lub hauv paus ntsiab lus ntawm kev ua haujlwm yog nyob ntawm kev ua haujlwm ntawm daim phiaj ntawm electrodes nyob rau sab hauv ntawm lub vijtsam. Ua ke nrog tib neeg lub cev, lawv tsim ib lub capacitor, lub peev xwm ntawm kev hloov pauv cov zaub tswj. Cov thev naus laus zis no yog siv los tsim cov iPhone.
Capacitive touch screens muaj ntau qhov zoo. Lawv tuaj yeem txiav txim siab nyob rau hauv kev sib piv nrog cov resistive sawv daws yuav ua kom pom tseeb. Ntawm chav kawm, nyob rau hauv xws li ib tug sib piv, lub qub yeej, txij li thaum lawv muaj zoo zoo. Lawv muaj kev ntseeg siab dua. Lawv tsis tas yuav calibration. Qhov rhiab heev ntawm cov ntxaij vab tshaus no ntau dua. Capacitive multi-touch touch screen txhawb ntau lub tshuab kov, uas tsis tuaj yeem hais txog kev tiv thaiv.
Nws yog qhov tsim nyog hais tias txoj kev tsim khoom tau teev tsegCov ntxaij vab tshaus tau dhau los ua ntau thiab ntau muaj nyob rau hauv cov khoom siv kawg rau cov neeg yuav khoom txhua xyoo, hnub no nws tuaj yeem pom ntau ntxiv hauv cov peev txheej ntawm cov ntsiav tshuaj thiab cov xov tooj kov. Tsuas yog qhov teeb meem tsis sib haum xeeb yog qhov tsis muaj peev xwm ua haujlwm nrog lub stylus, tab sis qhov no twb tau kho lawm. Raws li cov lus piav qhia, capacitive touch screens tuaj yeem hu ua qhov kev cog lus tshaj plaws hauv kev tsim cov ntsiav tshuaj tam sim no.
