Multi-touch screen uas tuaj yeem txheeb xyuas txoj haujlwm ntawm tus ntiv tes, Multi-TouchAll-Point tuaj yeem txheeb xyuas qhov chaw tshwj xeeb ntawm qhov kov taw tes, uas yog, tsis muaj qhov tshwm sim "ghost point". Multi-touch recognition txoj hauj lwm tuaj yeem siv rau kev tshawb pom ntawm ib qho kev taw qhia kov. Nws tuaj yeem kuaj pom qhov sib npaug ntawm 10 ntiv tes ntawm ob txhais tes. Nws kuj tseem tso cai rau lwm cov ntaub ntawv tsis yog ntiv tes, xws li xib teg, ntsej muag, nrig, thiab lwm yam, txawm tias hnav hnab looj tes. Nws yog qhov feem ntau Cov neeg siv-phooj ywg-tshuab interface yog qhov tsim nyog rau cov ntawv thov uas ua haujlwm nrog ntau tus ntiv tes tib lub sijhawm, xws li kev tswj hwm kev ua si.
Cov txheej txheem scanning ntawm Multi-Touch All-Point yog qhov kev sib tshuam ntawm txhua kab thiab txhua kab yuav tsum tau muab cais cais, thiab cov naj npawb ntawm cov scans yog cov khoom ntawm cov naj npawb ntawm kab thiab cov kab. Piv txwv li, ib qho screen kov muaj li ntawm 10 kab kab thiab 15 kab kab, siv cov axis tswj txoj kev ntawm Multi-Touch-Gesture, yuav tsum tau 25 scans, thaum lub multi-kov paub txoj hauj lwm txoj kev yuav tsum tau 150 zaug. Multi-TouchAll-Point yog ua raws li kev tshawb pom ntawm kev sib nrig sib capacitance, tsis yog tus kheej-capacitance. Self-capacitance pom qhov kev hloov pauv ntawm lub peev xwm ntawm txhua chav ntsuas qhov ntsuas (uas yog, tus kab mob parasitic capacitance Cp). Parasitic capacitance yuav nce thaum muaj tus ntiv tes, yog li nws tau txiav txim siab tias muaj Kov tshwm sim, thiab kev sib nrig sib capacitance yog txhawm rau txheeb xyuas qhov kev hloov pauv ntawm kev sib nrig sib capacitance (uas yog, coupling capacitance Cm) ntawm kev sib tshuam ntawm kab thiab kab. . Thaum cov kab thiab kab hla hla, kev sib nrig sib capacitance yuav raug tsim los ntawm cov kab thiab kab (nrog rau cov fringe capacitance nruab nrab ntawm kab thiab kem sensing units. Coupling capacitance generated ntawm qhov sib tshooj), qhov kev sib nrig sib capacitance yuav txo thaum muaj tus ntiv tes, nws tuaj yeem txiav txim siab tias qhov kov muaj nyob, thiab txoj haujlwm ntawm txhua qhov kov tau raug txiav txim kom raug.
Tib-point capacitive kov npo tsuas yog siv ib txheej ntawm ITO. Thaum tus ntiv tes kov lub ntsej muag ntawm lub vijtsam, qee qhov nqi hluav taws xob yuav raug xa mus rau tib neeg lub cev. Yuav kom rov qab tau cov nqi poob, cov nqi them rov qab los ntawm plaub fab ntawm lub vijtsam. Tus nqi ntawm tus nqi ntxiv nyob rau hauv txhua qhov kev taw qhia yog proportional rau qhov kev ncua deb ntawm qhov kov taw tes, thiab txoj hauj lwm ntawm qhov taw tes kov tuaj yeem xam los ntawm qhov no. Ib qho-taw tes capacitive kov npo tuaj yeem txiav txim siab ib qho taw tes ntawm ib lub sijhawm. Yog tias ntau tshaj ob lub ntsiab lus raug kov tib lub sijhawm, nws yuav tsis tuaj yeem ua qhov tseeb, lossis cov lus teb yuav tsis meej pem. Kev ua haujlwm ntawm ntau qhov kov tuaj yeem muab faib ua ob yam. Ib qho yog los sau ntau lub cim nyob rau tib lub sijhawm, thiab lwm qhov yog txiav txim siab lub ntsiab lus ntawm txhua lub teeb liab, uas yog lub npe hu ua gesture recognition. Piv nrog rau kev siv lub vijtsam kov uas tsuas tuaj yeem lees txais cov lus qhia ib leeg xwb, ntau lub ntsiab lus kov npo thev naus laus zis tso cai rau cov neeg siv kov lub vijtsam hauv ntau qhov chaw tib lub sijhawm, kom muaj peev xwm ua haujlwm xws li ntsuas thiab tig nplooj ntawv web lossis duab.
