Namuhla,Izibonisi eziqashisayo ze-LEDzisetshenziswe kabanzi emikhakheni ehlukahlukene. Bangasebenzisa umthelela ophelele wezinto zobuchwepheshe obuphezulu nobuchwepheshe ukuze baveze ngokusobala amatimu okukhangisa futhi bahehe izethameli ngomthelela wokubukwayo ovelele. Ngakho-ke, Ikhona yonke indawo ekuphileni. Kodwa-ke, njengomkhiqizo wemishini kagesi, impilo yesevisi yezibonisi eziqashisayo ze-LED nayo ingenye yezinkinga esikhathazeke kakhulu ngayo. Ngakho-ke uyazi ukuthi yiziphi izizathu ezithinta impilo yeIzikrini eziqashisayo ze-LED?
Izizathu ezithinta impilo yezikrini zokuqashwa kwe-LED zimi kanje:
1. Izinga lokushisa
Izinga lokuhluleka kwanoma yimuphi umkhiqizo liphansi kakhulu phakathi nesikhathi sokusebenza kwawo futhi ngaphansi kwezimo ezifanele zokusebenza kuphela. Njengomkhiqizo ohlanganisiwe we-elekthronikhi,Izikrini eziqashisayo ze-LEDikakhulukazi aqukethe amabhodi okulawula anezingxenye ze-elekthronikhi, izinto zamandla ezishintshayo, amadivaysi akhipha ukukhanya, njll. ukwakheka, futhi ukuphila kwakho konke lokhu kuhlobene eduze nezinga lokushisa lokusebenza. Uma izinga lokushisa langempela lokusebenza lidlula ububanzi obubekiwe bokusetshenziswa komkhiqizo, impilo yesevisi izofinyezwa nje kuphela, kodwa umkhiqizo ngokwawo uzolimala kakhulu.
2. Uthuli
Ukuze kwandiswe ukuphila okumaphakathi kwesikrini sokuqashwa kwe-LED, usongo lothuli ngeke luzitshwe. Lapho usebenza endaweni enothuli, ibhodi eliphrintiwe lithatha uthuli, futhi ukufakwa kothuli kuzothinta ukuchithwa kokushisa kwezingxenye ze-elekthronikhi, okuzokwenza ukuthi izinga lokushisa lezingxenye likhuphuke, bese ukuzinza okushisayo kuzokwehla futhi ngisho nokuvuza kuzokwenzeka. Ezimweni ezimbi kakhulu, kuzodala ukutubeka. Ngaphezu kwalokho, uthuli luzomunca futhi umswakama, ludle amasekhethi e-elekthronikhi, futhi lubangele ukwehluleka kwesifunda esifushane. Nakuba uthuli luncane ngosayizi, ukulimala kwalo emikhiqizweni akukwazi ukubukelwa phansi. Ngakho-ke, ukuhlanza njalo kuyadingeka ukuze kuncishiswe amathuba okuhluleka.
3. Umswakama
Nakuba cishe zonke izikrini eziqashisayo ze-LED zingasebenza ngokujwayelekile endaweni enomswakama ongu-95%, umswakama useyisici esibalulekile esithinta impilo yomkhiqizo. Igesi yomswakama izongena ngaphakathi kwedivayisi ye-IC ngokusebenzisa indawo ehlangene yezinto zokupakisha nezingxenye, okubangela i-oxidation, ukugqwala, nokunqanyulwa kwesekethe yangaphakathi. Ukushisa okuphezulu ngesikhathi sokuhlanganisa kanye nenqubo yokushisela kuzobangela ukuthi igesi yomswakama engena ku-IC yande futhi ikhiqize ukucindezela, okubangela ukuba ipulasitiki iguguleke. Ukuhlukaniswa kwangaphakathi (i-delamination) ku-chip noma uhlaka lomthofu, ukulimala kwentambo yokubopha intambo, ukulimala kwe-chip, ukuqhekeka kwangaphakathi kanye nokuqhekeka okudlulela phezulu kwengxenye, ngisho nokuqhuma nokuqhuma kwengxenye, okubuye kwaziwe ngokuthi “i-popcorning”, kuzodala ukwehluleka kokuhlanganisa. Izingxenye zingalungiswa noma zilahlwe. Okubaluleke kakhulu ukuthi amaphutha angabonakali futhi okungenzeka ahlanganiswe emkhiqizweni, okubangela izinkinga ngokuthembeka komkhiqizo.
4. Layisha
Kungakhathaliseki ukuthi i-chip ehlanganisiwe, ishubhu ye-LED, noma ukunikezwa kwamandla okushintshwayo, kungakhathaliseki ukuthi kusebenza ngaphansi komthwalo olinganiselwe noma cha, umthwalo nawo uyisici esibalulekile esithinta ukuphila kwawo. Ngoba noma iyiphi ingxenye inesikhathi sokulimala kokukhathala, ukuthatha ukunikezwa kwamandla njengesibonelo, ukunikezwa kwamandla okunegama kungakhipha amandla angu-105% kuya ku-135%. Kodwa-ke, uma ukunikezwa kwamandla kuqhutshwa ngaphansi komthwalo omkhulu kangaka isikhathi eside, ukuguga kwamandla okushintsha kuzosheshisa nakanjani. Yiqiniso, ukunikezwa kwamandla okushintshayo kungase kungahluleki ngokushesha, kodwa kuzonciphisa ngokushesha impilo yesikrini sokuqashwa kwe-LED.
Kafushane, nazi ezinye zezizathu ezithinta impilo yezikrini eziqashisayo ze-LED. Zonke izici zemvelo ezitholwa isikrini sokuqashwa kwe-LED phakathi nomjikelezo wempilo yaso zidinga ukucatshangelwa phakathi nenqubo yokuklama, ukuze kuqinisekiswe ukuthi ukushuba kwemvelo okwanele kufakwa ekwakhiweni kokwethembeka. Yiqiniso, ukuthuthukisa indawo yokusetshenziswa kwesikrini sokuqashwa kwe-LED kanye nokugcinwa njalo komkhiqizo akukwazi nje ukuqeda izingozi ezifihliwe namaphutha ngesikhathi, kodwa futhi kusiza ukuthuthukisa ukuthembeka komkhiqizo nokwelula impilo emaphakathi yesikrini sokuqashwa kwe-LED.
Isikhathi sokuthumela: Sep-19-2023