Adwumayɛ nnyinasosɛm ne su nhwehwɛmu a ɛfa touch screen mfiridwuma anan ho .

Infrared touch screen no de dense infrared matrix no di dwuma wɔ x ne y akwan so de hu na wohu nea ɔde di dwuma no touch. Infrared touch screen no de circuit board no akyi frame bi si display no anim, na circuit board no hyehyɛ infrared transmitting tubes ne infrared receiving tubes wɔ screen no afã anan no so, na ɛyɛ cross infrared matrix a ɛda fam ne nea ɛda fam no mmiako mmiako. Sɛ nea ɔde di dwuma no de ne nsa ka screen no a, nsateaa no besiw infrared rays abien a ɛda fam ne nea ɛkɔ fam a ɛfa saa gyinabea yi mu no ano, na enti wobetumi abu gyinabea a touch point no wɔ wɔ screen no so no atɛn. Ade biara a ɛka koma no betumi asesa infrared ray a ɛwɔ contact no so no ma wɔahu touch screen adwumayɛ. Mfiase no, na infrared touch screen no wɔ mfiridwuma mu anohyeto ahorow te sɛ resolution a ɛba fam, touch mode a anohyeto wom ne misoperation esiane nneɛma a atwa yɛn ho ahyia a ɛde ne ho hyɛ mu nti, a bere bi na ɛyera fi gua so. Ɛno akyi no, infrared screens awo ntoatoaso a ɛto so abien no dii ɔhaw a ɛne anti-hann ntwitwiridii no ho dwuma kakra. Awoɔ ntoatoasoɔ a ɛtɔ so mmiɛnsa ne awoɔ ntoatoasoɔ a ɛtɔ so nnan no nso maa wɔn gyinaesie ne wɔn ahoɔden a wɔde gyina hɔ no yɛɛ yie, nanso wɔanyɛ su pa wɔ nsɛnkyerɛnneɛ titire anaa adwumayɛ a ɛkɔ akyiri mu. Nanso, nnipa a wonim touch screen mfiridwuma nyinaa nim sɛ infrared touch screen no ntumi ntwitware current, voltage ne static electricity mu na ɛfata ma nneɛma a atwa yɛn ho ahyia a ɛyɛ den. Infrared mfiridwuma ne nkɔso a etwa to a ɛwɔ touch screen nneɛma mu. Touch screens a wɔde acoustics ne nneɛma afoforo mfiridwuma di dwuma no nyinaa wɔ wɔn akwanside ahorow a wontumi nni so, te sɛ sensor biako a asɛe ne onyin, suro a wosuro sɛ wɔde nneɛma a wɔde bɛka no ho fĩ, nneɛma a wɔde di dwuma sɛe ade, nsiesie a ɛyɛ den ne nea ɛkeka ho. Bere tenten a infrared touch screen no nya ahoɔden a ɛkorɔn ne resolution a ɛkorɔn ankasa no, akyinnye biara nni ho sɛ ɛbɛsesa mfiridwuma mu nneɛma afoforo na abɛyɛ touch screen gua titiriw. Bere bi a atwam no, na infrared touch screen no nsusuwii no gyina infrared tubes dodow a ɛwɔ frame no mu so, enti na resolution no sua koraa. Nneɛma titiriw a ɛwɔ ɔman no mu a ɛwɔ gua so no yɛ 32x32, 40x32, nea ɛka ho no, wɔka nso sɛ infrared screen no yɛ nea ɛyɛ mmerɛw wɔ nneɛma a ɛma kanea yɛ adwuma no ho, na ɛbɛbu atɛn a ɛnteɛ anaasɛ ɛbɛbɔ mpo bere a kanea no sesa kɛse no. Eyinom ne mmerɛwyɛ ahorow a ɛwɔ infrared screens a wɔtɔn na wɔbɔ ho dawuru denam amannɔne a ɛnyɛ{18}}infrared touch screens ne domestic agents so. Nanso, awo ntoatoaso a ɛto so anum infrared screen a ɛwɔ mfiridwuma a aba foforo no mu no nsusuwii gyina infrared tubes dodow, scanning frequency ne difference algorithm so. Nsusuwii no adu 1000x720. Ɛdefa infrared screen no ho no, ɛnyɛ nea entumi nnyina wɔ hann tebea no ase, efi bere a awo ntoatoaso a ɛto so abien a ɛyɛ infrared touch screen no, wɔadi anti{23}}hann ntwitwiridii no mmerɛwyɛ so yiye. Awoɔ ntoatoasoɔ a ɛtɔ so nnum infrared touch screen yɛ awoɔ ntoatoasoɔ foforɔ a ɛyɛ mfiridwuma mu nneɛma a ɛyɛ nyansa, a ɛhunu 1000 * 720 a ɛkorɔn, multi-level self-adjustment ne self-recovery hardware adapability ne nyansa a ɛkorɔn a wɔde kyerɛ sɛ wɔyɛ no, wɔbɛtumi de adi dwuma wɔ harsh mmeaeɛ ahodoɔ mu wɔ berɛ tenten mu. Na wobetumi ayɛ no sɛnea wɔpɛ na wɔatrɛw mu ama wɔn a wɔde di dwuma no, te sɛ network control, sound sensing, onipa nipadua a ɛbɛn sensing, user software encryption protection, infrared data transmission, etc. Ade titiriw foforo a ɛwɔ infrared touch screen a nsɛm ho amanneɛbɔfo bɔɔ ho dawuru mfiase no ne anti{32}}violence property a enye no. Nokwarem no, infrared screen no betumi apaw anti-rit glass biara koraa a adetɔfo susuw ho sɛ abotɔyam a ɛmma ɛka no nkɔ soro na ɛnka adwumayɛ, eyi yɛ biribi foforo a wɔde ka ho a wontumi nni akyi.
4. Nneɛma a ɛwɔ soro a ɛyɛ nnyigyei a ɛwɔ soro .
4.1. Ahunmu a ɛwɔ soro .
Surface Acoustic Wave, a ultrasonic wave, yɛ mfiri ahoɔden asorɔkye a ɛretrɛw wɔ medium no ani a ɛnyɛ den no ani (te sɛ nneɛma a ɛyɛ den te sɛ ahwehwɛ anaa dade. Through wedge-shaped triangular base (strictly designed as the wavelength of surface wave), directional and small angle acoustic waves emission can abrought perform anidua na ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den na ɛyɛ nea ɛyɛ den sɛ wobenya no ne nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ den sɛ wobenya no ayɛ nea ɛyɛ fɛ na ɛyɛ mmerɛw sɛ wɔbɛma nsu a ɛwɔ soro no ayɛ kɛse na ayɛ nea ɛyɛ mmerɛw sɛ ɛbɛma wɔanya nsu a ɛkɔ soro no. Heng Transmission. Wɔde vertical ne horizontal ultrasonic transmitting transmitters asiesie ahwehwɛ screen no ase nifa so, bere a wɔde ultrasonic receiving transmitters abien a ɛne no hyia no asi hɔ.
4.2. Adwumayɛ Nnyinasosɛm a Ɛfa Ano Akɔm Ho Asorɔkye Touch Screen .
Take the X-axis transmitting transducer in the lower right corner as an example: the transmitting transducer converts the electrical signal sent by the controller through the touch screen cable into acoustic wave energy and transmits it to the left surface, then a group of precise reflection stripes under the glass plate reflect the acoustic wave energy to an upward uniform surface for transmission, and the acoustic wave energy passes through the surface of the screen, then, the reflected stripes on the top gather into a line to Nifa ne trɛw kɔ receiving transducer a ɛwɔ x-axis no mu, na receiving transducer no dane acoustic energy a ɛwɔ surface a wɔasan de aba no mu no kɔ anyinam ahoɔden sɛnkyerɛnne mu. Sɛ transmitting transducer no ma pulse teateaa bi ba a, acoustic wave ahoɔden no nam akwan horow so ba receiving transducer no so, na ɛba wɔ nifa so ntɛm ara na ɛba benkum so akyiri yi, saa nnyigyei asorɔkye ahoɔden a ɛba ntɛm na ɛba akyiri yi no yɛ nea wɔde ahyɛ asorɔkye sɛnkyerɛnne a ɛtrɛw mu. Ɛnyɛ den sɛ yebehu sɛ nsɛnkyerɛnne a wɔanya no boaboa nnyigyei asorɔkye ahoɔden ahorow a wɔafa akwan horow so wɔ x axis kwan so no nyinaa ano, kwan a wɔfaa so wɔ Y-axis no so no yɛ pɛ, nanso wɔ x-axis no so no, akyirikyiri a ɛwɔ akyirikyiri no tenten yɛ nea ɛbɛn sen biara no mmɔho abien. Enti, bere axis a ɛwɔ saa waveform sɛnkyerɛnne yi mu no da gyinabea no adi ansa na waveform a edi kan no biara a ɛwɔ soro no ayɛ kɛse, a ɛyɛ x-axis coordinate. Sɛ wɔanka asorɔkye a ɛwɔ nsɛnkyerɛnne a wɔde kɔ ne sɛnkyerɛnne a wɔagye no ho no a, asorɔkye a ɛwɔ sɛnkyerɛnne a wɔagye no no yɛ pɛpɛɛpɛ ne asorɔkye a wɔde kyerɛ no pɛpɛɛpɛ. Sɛ nsateaa anaa nneɛma afoforo a ebetumi atwe anaasɛ asiw nnyigyei asorɔkye ahoɔden no ka screen no a, nnyigyei asorɔkye ahoɔden a X axis no fa nsateaa no mu kɔ soro no fã bi twetwe no, atenuation gap wɔ asorɔkye a wɔagye no mu, kyerɛ sɛ, bere pɔtee bi mu. Nsɛnkyerɛnne a ɛwɔ asorɔkye a ɛregye no mu a ɛne nsateaa no fã a esiw ano no sɛe notch, na touch coordinate controller no betumi ayɛ nhwehwɛmu a ɛfa signal no attenuation ho denam notch gyinabea a wɔbɛbu ho akontaa na wɔakyerɛ X coordinate no afi notch gyinabea no so. Ɛno akyi no, y coordinate a ɛwɔ touch point no mu no gyina y axis no ara so na ɛkyerɛ. Wɔ x ne y coordinates a general touch screen no tumi bua no akyi no, Surface Acoustic Wave Touch screen no nso yɛ n’ade wɔ Z axis coordinates a ɛwɔ axis a ɛtɔ so mmiɛnsa no ho, kyerɛ sɛ, ɛtumi te nka sɛ touch pressure a ɔde di dwuma no. Wɔnam sɛnkyerɛnne a wɔanya no attenuation so na ebu nnyinasosɛm no ho akontaa. Sɛ wɔhunu agyan mmiɛnsa no wie a, controller no bɛsoma wɔn akɔ host no nkyɛn.
4.3. Nneɛma a ɛwɔ soro acoustic wave touch screen .
Nkyerɛase a ɛkorɔn ne hann a ɛkɔ mu yiye. Ɛyɛ den yiye na ɛwɔ scratch resistance pa (ɛwɔ soro film a ɛfa resistance, capacitance, etc ho ). Mmuae a ɛyɛ mmerɛw. Nneɛma a atwa yɛn ho ahyia te sɛ ɔhyew ne ɔhyew a ɛwɔ hɔ no nnya so nkɛntɛnso, na ɛwɔ nsusuwii a ɛkorɔn ne bere tenten a wɔde yɛ adwuma (mpɛn ɔpepem 50 wɔ nsiesie pa ase); hann a ɛkɔ soro (92%), a ebetumi akura mfonini a emu da hɔ na ɛda adi pefee mu; drift biara nni hɔ, nteɛso biako pɛ na ɛho hia bere a wɔde rehyɛ mu no; Axis a ɛtɔ so mmiɛnsa (I .e. pressure shaft) mmuaeɛ wɔ hɔ, a wɔde di dwuma kɛseɛ wɔ ɔmanfoɔ mmeaeɛ mprempren. Ɛsɛ sɛ wɔhwɛ soro acoustic wave screen no so mpɛn pii, efisɛ mfutuma, ngo a ɛyɛ fĩ ne nsu a ɛyɛ nsu mpo a ɛyɛ nkekae wɔ screen no ani, a ɛbɛma asorɔkye a wɔkyerɛ kwan no kwan wɔ touch screen no ani na ama asorɔkye no antumi amma wɔanyiyi no sɛnea ɛsɛ, anaasɛ ɛbɛma asorɔkye no ayɛ nsakrae na nea ɔhwɛ so no ntumi nhu no sɛnea ɛte biara, na ɛnam so aka sɛnea wɔde nsa a wɔde ka no di dwuma sɛnea ɛsɛ. Ɛsɛ sɛ wɔn a wɔde di dwuma no de wɔn adwene si nneɛma a atwa yɛn ho ahyia ho ahotew so denneennen. Ɛsɛ sɛ wɔpopa screen no ani mpɛn pii na ama screen no ayɛ hyew na ɛho atew, na ɛsɛ sɛ wɔpopa screen no koraa daa.
Surface Acoustic Asorɔkye Screen .
Nnyigyei asorɔkye screen no ntwea abiɛsa no yɛ nea wɔde transducer a ɛma nnyigyei asorɔkye a ɛwɔ X ne Y akwankyerɛ no mu no abɔ mu (nsu a wɔde ayɛ: wɔde nneɛma soronko a wɔde yɛ nneɛma, a wɔakyekyɛ mu ayɛ no transducer a ɛde kɔ baabi foforo ne transducer a wɔde gye nneɛma. Ɛne sɛ wɔbɛdan anyinam ahoɔden sɛnkyerɛnne a wɔde soma a controller no fa so no fa touch screen no so no de anyinam ahoɔden nhama no ahoɔden a wɔde dannan no ma ɛyɛ asorɔkye a wɔde dannan wɔn ho no ma ɛne no dannan wɔn ho ma wɔde wɔn adwene si so de reffon pow no. Stripes a ɛkyerɛ sɛnea ɛte wɔ soro ultrasonic asorɔkye. Sɛ nsateaa anaa nneɛma a ɛyɛ mmerɛw ka screen no a, acoustic ahoɔden no fã bi twetwe, enti wɔsesa sɛnkyerɛnne a wɔanya no, na wonya X ne Y coordinates a ɛwɔ touch no mu no denam controller no ho dwumadie so.
Anan-Wire Resistive Screen .
Wɔde nsuo a ɛkɔ nsuo mu a ɛyɛ nsuo a ɛyɛ hann (ITO: indium oxide, conductive nipadua a ɛyɛ mmerɛw) a ɛda ɔfasuo ho banbɔ a wɔde kata so ne nnyinasoɔ a ɛwɔ soro no ntam no akata four-wire resistance screen no so. Su no ne sɛ, sɛ ne kɛse no kɔ fam kodu 1800 angs (angs=10) a, ɛbɛyɛ nea ɛda adi mpofirim bere a ɛwɔ ase hɔ no, na hann a ɛde ma no so bɛtew bere a ɛyɛ mmerɛw no, na ɛbɛkɔ soro bere a adu 300 no mu duru no. Ɛyɛ nneɛma atitiriw a ɛwɔ nneɛma atitiriw a ɛwɔ resistance screens nyinaa mu ne Capitive Screens are intipPas Nneɛma nketenkete a ɛma nneɛma yɛ hyew. Nhyɛsoɔ a ɛba berɛ a ɛka no bata conductive layers mmienu no ho, na x a ɛka ho no, wɔnya resistance value no, y coordinate.
Anum Wire Resistive Screen .
Base layer a ɛwɔ anum-Wire resistance screen no akata transparent conductive layer ITO a ɛde voltage fields no ka x ne y akwan abien no nyinaa ho wɔ layer koro no ara mu, na akyi fã no yɛ gold conductive layer (sika conductive layer: outer conductive layer of five-wire resistive resistive screen no yɛ nea wɔde sika kɔkɔɔ a wɔde ka nneɛma ho no di dwuma, na wɔde sika kɔkɔɔ a wɔde di dwuma no di dwuma de dupility with touth touth with with touth touth touth touth touth touth autility with devil Ductility pa ne sɛ ɛbɛma ɔsom nkwa no akyɛ .) Wɔde di dwuma sɛ conductor a ɛho tew nkutoo. Sɛ wode wo nsa ka a, wɔde bere-Sharing detection a ɛwɔ x-axis ne y-axis a ɛwɔ nkitahodi no mu no na ɛsusuw gyinabea a ɛwɔ touch point no mu. Wɔde lead wires anan na ɛyɛ adwuma ma ITO a ɛwɔ mu no na biako nso ma ITO a ɛwɔ akyi no, a ne nyinaa yɛ lead wires anum.
Capacitive screen .
Wɔde transparent conductive layer ITO akata capacitive screen no ani, voltage no bata ntwea anan no ho, na current ketewaa a ɛkɔ tẽẽ no petepete screen no ani, na ɛyɛ anyinam ahoɔden a ɛyɛ pɛ. Sɛ onipa nipadua no de ne nsa ka screen no a, ɛyɛ adwuma sɛ coupling capacitor no dua biako, current no boaboa ano fi screen no ntwea anan so ma ɛyɛ coupling capacitor no dua foforo no, na wɔde controller no bu kwan a ɛda current no ne touch position no ntam no ho akontaa na ama wɔanya touch coordinates no.
Hong abɔnten so screen .
Infrared touch screen no de dense infrared matrix no di dwuma wɔ x ne y akwan so de hu na wohu nea ɔde di dwuma no touch. Infrared touch screen no de circuit board no akyi frame bi si display no anim, na circuit board no hyehyɛ infrared transmitting tubes ne infrared receiving tubes wɔ screen no afã anan no so, na ɛyɛ cross infrared matrix a ɛda fam ne nea ɛda fam no mmiako mmiako. Sɛ nea ɔde di dwuma no de ne nsa ka screen no a, nsateaa no besiw infrared rays abien a ɛda fam ne nea ɛkɔ fam a ɛfa saa gyinabea yi mu no ano, na enti wobetumi abu gyinabea a touch point no wɔ wɔ screen no so no atɛn. Ade biara a ɛka koma no betumi asesa infrared ray a ɛwɔ contact no so no ma wɔahu touch screen adwumayɛ.