Touch technology a ɛwɔ projective capacitive panel a ɛwɔ projective capacitive touch screen no mu ne sɛ ɛbɛ etch ITO conductive circuit modules ahorow wɔ ITO conductive glass coating a ɛwɔ afã abien no so.
Etching patterns a ɛwɔ module abien no so no gyina hɔ ma wɔn ho wɔn ho, a wobetumi abu no sɛ nsakrae a ɛkɔ so wɔ x ne y akwankyerɛ ahorow no mu.
Esiane sɛ X ne Y modes no wɔ soro ahorow nti, ɛyɛ capacitor nodes wɔ intersections.
Wobetumi de slider no adi dwuma sɛ drive line ne slider foforo no sɛ sɔhwɛ line.
Sɛ current bi fa conductors no mu baako mu wɔ drive line no mu a, sɛ external signal of capacitance change wɔ hɔ a, capacitance nodes a ɛwɔ layer foforo no so no bɛsesa.
Wobetumi de ɛlɛtrɔnik kwan a ɛka ho no asusuw nsakrae a ɛba wɔ capacitance mu no so, na afei dijitaal sɛnkyerɛnne a efi A/D controller no mu no bɛma kɔmputa no ayɛ akontaabu ho nhyehyɛe de anya (X, Y) axis gyinabea, na afei adu baabi a wɔde botae no si hɔ no.
Wɔ dwumadie mu no, controller no wɔ tumi a ɛkɔ drive line no so, na ɛma node ne conductor biara yɛ anyinam ahoɔden pɔtee bi.
Afei, wɔde line scan sensor no susuw capacitance nsakrae a ɛwɔ electrode ahorow no ntam no de hu multi-point positioning.
Sɛ finger anaa touch media kwan a, controller no sesa capacitance no ntɛmntɛm wɔ touch node ne waya no ntam de si gyinabea a touch control no wɔ no so dua.
Saa axis yi nam AC nsɛnkyerɛnne ahorow bi so na ɛma mmuae a ɛnam touch screen no so no yɛ nea wɔde electrodes a ɛwɔ axis foforo no so susuw.
Wɔn a wɔde di dwuma no frɛ no "crossover" sensing, a wɔsan frɛ no projection sensing.
Wɔde x ne y axis ito nsusuwso akata sensor no so. Sɛ nsateaa no ka touch screen no ani a, capacitance a ɛwɔ touch point no ase no bɛkɔ soro sɛnea touch point no bɛn no. Scanning a ɛkɔ so wɔ sensor no so no bɛhunu nsakraeɛ boɔ a ɛwɔ capacitance no mu, na control chip no bɛbu touch point no ho akontaa na asan de ama processor no.
