Esimweni sobuchwepheshe esithuthuka ngokushesha namuhla, izixazululo zokubonisa i-LED zithuthuke kakhulu. Ubuchwepheshe be-LED bushintshe kakhulu imboni yokukhanyisa, buhlinzeka ngezinketho ezisebenzisa amandla kahle nezihlala isikhathi eside kubathengi nakumabhizinisi ngokufanayo. Phakathi kokucushwa okuhlukahlukene kwe-LED, i-COB (Chip on Board) ivele njengokukhetha okuphezulu ngenxa yezici zayo zobuchwepheshe. Kulesi sihloko, sizohlola izizathu ezenza i-COB ibe nenzuzo kunobuchwepheshe be-SMD (Surface Mount Device) obusetshenziswa kabanzi. Kusukela ekukhishweni kwayo okuphansi kokushisa kuya ekuvikelweni okuthuthukisiwe ezicini zemvelo, i-COB idlula ngempela izimbangi zayo.
1.I-SMD vs. COB: Yikuphi Okungcono?
Uma kukhulunywa ngobuchwepheshe bokubonisa i-LED, izimbangi ezimbili eziyinhloko zibusa emakethe: i-SMD ne-COB. Nakuba i-Surface Mount Device ibilokhu iyisinqumo esithandwayo sezixazululo zokukhanyisa i-LED, i-COB ivele njengenye indlela enamandla kakhulu.
Ngokungafani ne-SMD, equkethe ama-diode e-LED afakwe ngazinye ebhodini lesifunda, i-COB ifaka ama-chip amaningi e-LED ngaphakathi kwemojuli eyodwa. Lokhu kulungiselelwa okuyingqayizivele akugcini nje ngokuthuthukisa ukukhanya namandla okukhanya kodwa futhi kunciphisa ukuncishiswa kokukhanya emabangeni amade. Umklamo we-COB osezingeni eliphezulu uphumela ekukhanyeni okungenamkhawulo okufana kanye nokuboniswa kombala ophezulu.
II. Ukushisa Okuphansi Nokushisa Okuncane
Enye yezinzuzo eziyinhloko ze-COB kune-SMD ukuthi inamandla okuphatha ukushisa aphezulu. Ubuchwepheshe be-COB bunikeza ukumelana okuphansi kokushisa ngenxa yokwakheka kwayo okuncane. Ukumelana nokushisa kunquma ukuthi ukushisa kunyamalala kanjani kumoduli ye-LED, okwenza i-COB isebenze kahle kakhulu ekunciphiseni ukwakheka kokushisa. Lokhu akugcini nje ngokuthuthukisa isikhathi eside kanye nezidingo zokunakekelwa ezincishisiwe kodwa futhi nokuphepha okuthuthukisiwe njengobaAmamojula e-COBazivamile ukushisa ngokweqile.
III. Ukuvikelwa Okuhle Kakhulu Ezicini Zemvelo
Isibonisi se-COBinikeza isivikelo esihle kakhulu ezicini ezahlukahlukene zemvelo, iqinisekisa ukuqina nokuthembeka ezimweni ezahlukahlukene. Iqiniswe nge-epoxy resin ukuthuthukisa ukusebenza kokuvikela. Inesimo sokumelana okuphezulu nomswakama, uthuli, i-static, i-oxidation, kanye nokukhanya okuluhlaza okwesibhakabhaka. Lokhu kuvikelwa okuthuthukisiwe kwenza izixazululo zokukhanyisa ze-COB zichume ezindaweni ezinzima njengezilungiselelo zangaphandle noma izindawo ezinomswakama ophezulu. Ngaphezu kwalokho, ukumelana okuphezulu kwe-COB ne-oxidation kuqinisekisa ukuthi ama-LED agcina ukukhanya kwawo kanye nokunemba kombala isikhathi eside, ngokungafani nozakwabo be-SMD.
IV. Ikhwalithi emnyama nebukhali.
Ukwakhiwa kobuchwepheshe be-COB akugcini nje ngokuthuthukisa amandla ayo okuphatha ukushisa kanye nokuvikela kodwa futhi kunegalelo ekhwalithini yokukhanya kwayo. Ngenxa yama-chip e-LED aseduze, i-COB ikhipha ukukhanya okugxile kakhulu nokunamandla, okuholela ezithunzini ezimnyama kanye nemininingwane ecwebezelayo. Lokhu kwenza i-COB ifaneleke kakhulu ekusetshenzisweni lapho ukunemba kanye nokugqama okuphezulu kubalulekile khona, njengeminyuziyamu, imibukiso yokuthengisa, kanye nemibukiso. Ukukhanya okubukhali okunikezwa ubuchwepheshe be-COB kuthuthukisa ukubukeka nokucaca kwezindawo ezikhanyisiwe.
Njengoba imboni ye-LED Display iqhubeka nokukhula,Ubuchwepheshe be-COBivele njengokukhetha okusha nokungcono kakhulu kwezixazululo zokubonisa i-LED. Izici zayo zobuchwepheshe, njengokukhipha ukukhanya okufanayo, ukukhishwa okuphansi kokushisa, ukuvikelwa okuthuthukisiwe ezicini zemvelo, kanye nokukhanya okubukhali, kuyenza ibe inketho enganqobeki. I-COB ayigcini nje ngokuhlinzeka ngokusebenza okuthuthukisiwe kanye nokuphila isikhathi eside kodwa futhi inikeza ikhwalithi yokubona engcono, okubalulekile ezinhlelweni ezahlukene.
Ngokuthandwa kwayo okwandayo kanye nentuthuko ezinqubweni zokukhiqiza,Ubuchwepheshe be-COBitholakala kalula kubathengi kanye namabhizinisi emhlabeni jikelele. Isibonisi se-COBizixazululo zithembisa ukuletha izinketho zokukhanyisa ezikhanyayo, ezisebenza kahle kakhulu, nezihlala isikhathi eside ngenkathi ziguqula indlela esikhanyisa ngayo indawo esizungezile.
Isikhathi sokuthunyelwe: Okthoba-25-2023
