Nneɛma titiriw a ɛwɔ .Capacitive touch a ɛwɔ soro no .IS: Substrate no yɛ biako-layer plexiglass, a layer of transparent conductive film yɛ pɛpɛɛpɛ forged wɔ inner ne akyi soro plexiglass, na teateaa ne tenten cone no si so anan no ntwea so transparent conductive film wɔ akyi fã. Ɛlektrɔn. ne nnyinasosɛm a ɛyɛ adwuma ne sɛ: bere a nsateaa bi ka .Capacitive touch a ɛwɔ soro no ., a ɛkorɔn-frequency signal no bata adwumayɛ soro ho. Saa bere yi de, nsateaa ne adwuma no ani .Touch Screen .Fa coupling capacitor, a ɛne conductor yɛ pɛ, ɛfiri sɛ ɛwɔ hɔ a ɛkorɔn-frequency signals wɔ adwumayɛ so. Wɔtwe current ketewaa bi wɔ touch point no so. Saa nsu ketewa yi sen fi electrode ahorow a ɛwɔ ntwea anan a ɛwɔ .Touch Screen .. Mprempren a ɛsen fa electrode anan no mu no ne kwan a ɛda nsateaa no ntam kɔ ntwea anan no so no hyia. Sɛ yɛbu akontaa a, wobetumi anya coordinate value a ɛwɔ contact point no mu.
NoCapacitive touch a ɛwɔ soro no .Wobetumi abu no kɛkɛ sɛ screen a ɛyɛ composite screens anan: Outermost layer yɛ glass protective layer, a ɛwɔ conductive layer akyi, layer a ɛtɔ so mmiɛnsa no yɛ non{0}}conductive glass screen, na innermost layer a ɛtɔ so nnan no nso yɛ conductive layer. Nea ɛwɔ mu sen biara no yɛ shielding layer, a edi dwuma a ɛne sɛ ɛbɔ anyinam ahoɔden nsɛnkyerɛnne a ɛwɔ mu no ho ban. Mfinimfini conductive layer no yɛ ade titiriw a ɛwɔ touch screen no nyinaa mu. Nneɛma a ɛwɔ hɔ tẽẽ wɔ ntwea anaa afã anan no so de hu baabi a touch point no wɔ.
Nea ɛwɔ soro sen biara a ɛkata so no yɛ ahwehwɛ a wɔahyɛ no den anaasɛ polyethylene terephthalate (PET). Mfaso a ɛwɔ PET so ne sɛ .Touch Screen .Wobetumi ama ayɛ mmerɛw, na ɔkwan foforo so no, ne bo yɛ mmerɛw sen plastic ne ahwehwɛ nneɛma a ɛwɔ hɔ dedaw no. Nneɛma a ɛbɔ ho ban no yɛ ahwehwɛ (0.4-1mm), organic film (10-100um), adhesive, ne mframa. Nea ɛho hia sen biara ne indium tin oxide (ITO) a ɛwɔ so no. ITO no mu duru a ɛtaa ba no yɛ 50-100nm, na ne krataa a ɛko tia no bɛyɛ 100-300 ohm. ITO no kwan a wɔfa so yɛ adwuma no ne nea ɛwɔ afã abiɛsa no wɔ nkɛntɛnso kɛse wɔ .Capacitive touch screens .. Ɛne capacitance parameters abien a ɛho hia a ɛwɔ .Touch screens .: inductive capacitance (finger ne upper ITO) ne parasitic capacitance (wɔ ITO ntoatoaso a ɛwɔ soro ne ase ntam, ITO a ɛwɔ fam ne screen a wɔde kyerɛ no ntam). ntam).
Sɛnea wɔahyehyɛ no .Capacitive touch a ɛwɔ soro no .ne titiriw sɛ wɔde bɛkata film nipadua a ɛyɛ mmerɛw so wɔ ahwehwɛ no so, na afei wɔde ahwehwɛ a ɛbɔ ho ban aka conductor layer no akyi. Ahwehwɛ a ɛbɔ ho abien no betumi abɔ conductor layer no ne sensor no ho ban koraa, na hann a ɛkɔ mu no korɔn. betumi aboa multi-touch no yiye.
NoCapacitive touch a ɛwɔ soro no .no yɛ nea wɔde electrode atenten ne teateaa ayɛ no wɔ afã anan no nyinaa .Touch Screen .Sɛnea ɛbɛyɛ a wobɛhyehyɛ-voltage AC anyinam ahoɔden field wɔ conductive nipadua no mu. Sɛ wode wo nsa ka screen no, esiane anyinam ahoɔden a ɛwɔ onipa nipadua mu nti, nsateaa no ne conductor layer no ntam bɛtetew.
Sɛ coupling capacitor no, current a ɛfiri four-side electrodes no bɛsen akɔ contacts no so, na ahoɔden a ɛwɔ current no mu no ne nsateaa no ne electrode no ntam kwan no hyia a ɛne no nhyia. Controller no a ɛwɔ .Touch Screen .bεbu mprempren no ratio ne ahoɔden ho akontaa na ama wabu gyinabea a touch point no wɔ no pɛpɛɛpɛ . ahwehwɛ a ɛbɔ ho abien a ɛwɔ .Capacitive touch a ɛwɔ soro no .ɛnyɛ sɛ ɛbɔ nhama a ɛma nneɛma kɔ so ne sensor ahorow no ho ban nko, na mmom esiw nneɛma a atwa yɛn ho ahyia a efi akyi ba no nso kwan ma enya nkɛntɛnso wɔ .Touch Screen .. Sɛ mpo screen no ho agu fĩ, mfutuma anaa ngo nkekae a, .Capacitive touch a ɛwɔ soro no .da so ara tumi bu touch gyinabea no ho akontaa pɛpɛɛpɛ.
Esiane sɛ capacitance no gu ahorow wɔ contact area ne dielectric a ɛwɔ medium no mu nti, ne gyinabea no nyɛ papa na drift phenomenon taa ba. Saa ɔkwan yi so .Touch Screen .no fata ma debugging stage a ɛwɔ nhyehyɛe nkɔso mu .
