The aiki manufa na capacitive tabawa

The working principle of capacitive touch screen

Bayani kan ka'ida

Screensarfin fuska yana buƙatar fahimtar taɓawa da yawa ta hanyar haɓaka wayoyin ƙarfin ƙarfin juna. A sauƙaƙe, allon ya kasu kashi-kashi, kuma saitunan matakan haɗin kai a kowane yanki suna aiki kai tsaye, don haka allo mai ƙarfin yana iya zama mai zaman kansa Ana gano yanayin taɓa kowane yanki, kuma bayan aiwatarwa, ana iya fahimtar taɓawa da yawa.

TParfin ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar CTP (Capacity Touch Panel) yana amfani da shigarwar jikin ɗan adam zuwa aiki. A capacitive allo ne mai hudu-Layer hadedde gilashin allo. Girman ciki da kuma interlayer na allon gilashi kowannensu an lulluɓe shi da layin ITO (Nano Indium Tin Metal Oxide). Layer mafi ƙaran shine layin siliki na silica wanda kaurinsa yakai 0.0015mm kawai, da kuma rufe ITO interlayer. Kamar yadda fuskar aiki take, ana zana wayoyi guda hudu daga kusurwa huɗu, kuma ITO na ciki shine shimfidar allo don tabbatar da yanayin aiki.

Lokacin da mai amfani ya taɓa allon mai aiki, saboda filin lantarki na jikin mutum, yatsan mai amfani da farfajiyar aiki suna haɗuwa da ƙarfin haɗi. Saboda yanayin aikin yana da alaƙa da sigina mai saurin mita, yatsan yana ɗaukar ƙaramin ƙarami, wanda ke gudana daga kusurwa huɗu na allon. Halin da ke gudana ta cikin wayoyin guda huɗu ya daidaita daidai gwargwado zuwa nisa daga yatsan yatsa zuwa kusurwa huɗu. Mai sarrafawa yana lissafin matsayin rashi huɗu na yanzu daidai. Zai iya isa ga 99% daidai kuma yana da saurin amsawa ƙasa da 3ms.

Jectedwararren acwararren jectedira

Fasahar tabawa na kwamiti mai karfin sarrafawa Hasken allon tabawa mai inganci shine ya zana nau'ikan kayan kwalliyar kayan kwalliyar ITO daban-daban akan layuka biyu na murfin gilashin ITO. Abubuwan da aka zana a kan matakan guda biyu suna da alaƙa da juna, kuma ana iya ɗaukar su azaman sliders waɗanda ke ci gaba da canzawa a cikin hanyoyin X da Y. Tunda tsarin X da Y suna kan fuskoki daban-daban, ana ƙirƙirar kumburi a mahaɗar. Ana iya amfani da darjewa ɗaya azaman layin tuki, ɗayan kuma ana iya amfani da shi azaman layin ganowa. Lokacin da layin yanzu ya gudana ta cikin waya daya a layin mashin, idan akwai siginar canza canjin daga waje, zai haifar da canjin kumburin capacitance akan daya layin waya. Canjin darajar ƙarfin da aka gano ana iya auna shi ta hanyar lantarki wanda aka haɗa shi, sannan a juya shi zuwa siginar dijital ta mai kula da A / D don kwamfutar don aiwatar da lissafin lissafi don samun matsayin (X, Y) axis, kuma to cimma manufar sanyawa.

Yayin aiki, mai sarrafawa yana bayar da layin yanzu zuwa layin mashin, don haka takamaiman filin lantarki ya kasance tsakanin kowane kumburi da waya. To saika duba layin layin bayanan ta hanyar shafi domin auna canjin karfin wuta tsakanin wayoyin sa, ta yadda za'a samu matsayi mai yawa. Lokacin da yatsa ko matsakaiciyar matata ta kusanto, mai kula da sauri yana gano canjin yanayin aiki tsakanin kumburin taɓawa da waya, sannan ya tabbatar da matsayin taɓawa. Wannan nau'in axis ne ke motsa shi ta siginar siginar AC, kuma amsar a fadin allon tabawa ana hango ta ta hanyar wayoyi a daya bangaren. Masu amfani suna kiran wannangiciye-kanshigarwa, ko tsinkayen shigar. An saka firikwensin tare da samfurin X da Y axis ITO. Lokacin da yatsan hannu suka taba fuskar allon tabawa, karfin karfin da ke kasan wurin tabawa yana karuwa daidai da nisan wurin tabawa. Cigaba da duba kan firikwensin yana gano canjin ƙimar ƙarfin aiki. Ginin sarrafawa yana kirga wurin taɓawa kuma ya ba da rahoto ga mai sarrafawa.


Post lokaci: Mayu-17-2021