I-COB LED vs i-SMD LED: Ukukhanya, Ukusebenza Kahle kanye Nezindleko Uma kuqhathaniswa Ikhanda Nekhanda

Isingeniso

Ukukhanyisa kwaqala njengethuluzi elilula lokuphepha ebusuku. Namuhla, injongo yako ikhule kakhulu. Ngale kokubonakala nje, ukukhanya manje kulawula isimo sendawo, kuqhuba ubuhle bezakhiwo, futhi kugqamisa imicimbi.

Lokhu kuthuthuka kuncike ngokuphelele kubuchwepheshe besimanje. Sishintshe kusukela emalangabini ayisisekelo saya kumadivayisi kagesi athuthukile (ama-diode asebenzisa ukukhanya akhipha ukukhanya, noma ama-LED). Lezi zibani zesimanje zisebenza kahle kakhulu. Zisebenzisa ingxenye encane yamandla amabhalbhu amadala akhipha ukukhanya futhi zihlala isikhathi eside ngokuphindwe izikhathi ezingu-25.

Kodwa naphezu kokutholakala kwazo zonke izindawo, kusekhona ukungaqiniseki ngegama. Okunye ukungaqondi okuvamile ukuqhathanisa i-LED evamile ne-SMD njengokungathi ubuchwepheshe obuhlukile ngokuphelele. Ukuze kucace, idivayisi efakwe ngqo ebusweni bebhodi lesifunda (i-SMD noma i-Surface Mounted Device) empeleni iwuhlobo oluthile lwe-LED. Igama livela kakhulu endleleni i-chip epakishwa futhi ifakwa ngayo ebhodini.

Njengamanje, imakethe yokukhanyisa ibuswa izindlela ezimbili eziyinhloko zokupakisha lezi zibani:

● ISMD Indlela: Le ndlela yashintsha ngokuphelele imboni ngoba yenza ukukhiqizwa ngobuningi kube ngcono kakhulu. Yavumela izinhlobo eziningi zemibala.

● ICOB Indlela: Njengendlela engcono yokusebenza kahle, abakhiqizi baqala ukufaka ama-chip amaningi okukhanya ndawonye ngokuqinile ngqo esisekelweni esisodwa (i-Chip-on-Board, noma i-COB). Lo mklamo uyaziswa kakhulu ngoba udala indawo ekhanyayo kakhulu, egxilile yokukhanya.

Kulesi sihloko, sizoqhathanisa ubuchwepheshe obubili bese sibona ukuthi iyiphi efanelekile izinhlelo zokusebenza ezahlukene.

Ukuqonda Ubuchwepheshe be-SMD LED

Indlela Izibani Ezakhiwa Ngayo

Lezi zibani zenziwa ngokunamathisela ama-chip okukhanya ngamanye ngqo endaweni ebizwa ngokuthi i-Printed Circuit Board, noma i-PCB. Azisebenzisi imilenze yensimbi emidala edlula ebhodini futhi idinga ukushiswa okuyinkimbinkimbi.

Esikhundleni salokho, imishini ibeka ngokushesha izingxenye ngqo ebusweni bezinto isebenzisa i-Surface-Mount Technology, noma i-SMT. Lokhu kuvumela ukukhiqizwa okusheshayo nokunembile. Izingxenye zikhiywa unomphela endaweni yazo kusetshenziswa inqubo yokushisa encibilikisa insimbi nezingxenye ze-solder. Ukushisa nokucindezela kubopha izingxenye ezindaweni zokuxhuma ebhodini ezibizwa ngokuthi ama-solder pads. Iyunithi ngayinye yokukhanya encane ivame ukubamba i-diode eyodwa kuya kwezintathu ezikhipha ukukhanya. Lezi zivame ukuba bomvu, luhlaza okotshani, kanye nohlaza okwesibhakabhaka. Zonke zigcinwe ngaphakathi kwebhokisi elilodwa lepulasitiki.

Ukusebenza Kahle Nokukhiqiza

Ngokusho kolwazi lwemboni, ukusebenzisa imishini ezenzakalelayo ukwakha izibani ezinama-IC ahlanganisiwe kuyimpumelelo enkulu. Le ndlela ifinyelela izinga lokukhiqiza elingenaphutha elingaphezu kuka-99.5%. Lokhu kuyintuthuko enkulu ngaphezu kwesivuno esingu-92% esibonakala ezinqubweni zokushisa ezijwayelekile.

Lawa mamojula athuthukile nawo ashesha kakhulu. Angashintsha isikhathi sawo sokukhanya noma sokufiphala kwempendulo ngaphansi kwama-nanosecond ayi-100. Lesi sivinini sidlula kalula amalungiselelo ajwayelekile e-analog. Asebenzisa amandla kahle kakhulu ngenxa yobuncane bawo. Amamodeli anamandla aphezulu, njenge-5730, akhipha ukukhanya okukhazimulayo kwamandla asetshenziswayo. Angaba nokusebenza kahle okukhanyayo okufika kuma-lumens angu-240 nge-watt ngayinye.

Ukwehla Kokusebenza Kahle

Nakuba ukukhanya kwesimanje kuthuthuke kakhulu, kusabhekene nemingcele ethile ebonakalayo. Ungalindela ukuthi ukufaka ugesi omningi ekukhanyeni kuzoholela ekukhanyeni okukhulu ngokulinganayo. Kodwa-ke, empeleni, inani lokukhanya elikhiqizwa nge-watt ngayinye liyancipha njengoba ucindezela amandla kagesi amaningi. Lesi simo sibizwa ngokuthi i-efficiency droop. Imbangela eyinhloko yalokhu kulahlekelwa ekusebenzeni kahle inqubo ethile ye-athomu ebizwa ngokuthi i-Auger recombination. Esimweni esinjalo, amandla ayachithwa ngaphakathi kunokuba akhishwe njengokukhanya.

Izici Eziyinhloko Zokuklama kanye Nomphumela Obonakalayo

Lezi zibani zisebenza ngezindlela eziningi futhi ziza ngobukhulu obuhlukahlukene. Amamodeli avamile afaka phakathi u-2835, 3528, no-5050. Lezi zinombolo zibhekisela nje kubukhulu bazo obubonakalayo ngamamilimitha. Isibonelo, u-2835 usho usayizi ongu-2.8 mm no-3.5mm. Ngenxa yokuthi izinto eziningi zokukhanya zipakishwa ebhokisini elilodwa, zikhiqiza kalula umkhiqizo wemibala eminingi noma we-RGB (Obomvu, Oluhlaza, Oluhlaza okwesibhakabhaka). Izinhlelo zokulawula zesimanje zivumela ukulawula into ngayinye encane ngokuzimela.

Zisebenza njengezindawo ezigxile kakhulu zemithombo yokukhanya noma yokukhanya okukhomba. Lokhu kuzenza zikhanye kakhulu. Kodwa-ke, uma uzibheka useduze, ungase ubone amachashazi okukhanya kanye nokwakheka kwamaphikseli. Iningi lalezi zibani lisakaza imisebe yazo kabanzi, ngokuvamile phakathi kwe-engeli ye-beam engu-140° no-160°. Kodwa-ke, ezinye izinguqulo ezikhethekile zisunduza ukukhanya eceleni, zihambisana nebhodi. Lezi zisetshenziswa ezikrinini ezincane kakhulu. Lezi zibani kulula ukuzilungisa. Uma i-bead eyodwa yesibani ihluleka, ngokuvamile ungayishintsha leyo ngxenye. Akudingeki ulahle yonke imojuli.

Ukuhlola Ubuchwepheshe be-COB LED

Indlela Izibani ze-COB Ezakhiwa Ngayo

Idizayini ye-COB ithatha indlela ehlukile kuneyemodeli endala. Esikhundleni sokunikeza ukukhanya ngakunye izindawo zayo zokufaka kanye namafreyimu e-lead, inamathisela ama-chip amaningi okukhanya angenalutho ngqo kungqimba oluyisisekelo. Inhle kakhulu ekudonseni ukushisa, njenge-ceramic noma i-silicon carbide.

Ivumela abakhiqizi ukuthi banikeze ubuningi obukhulu uma kuqhathaniswa nokukhanya kwe-SMD. Lonke iqembu lama-chip libe selimbozwa ngesendlalelo esisodwa esibushelelezi sezinto ezikhethekile ze-phosphor. Iguqula ukukhanya okuluhlaza okwesibhakabhaka kube ukushisa kombala omhlophe okuhambisanayo. Naphezu kokuba nama-diode amaningi, ukusetha kukagesi kulula kakhulu. Isebenzisa indlela kagesi eyodwa kanye nezindawo ezimbili zokuxhuma.

Ukuqonda Okuphezulu Nokuphathwa Kokushisa

Ngokusho kolwazi lwemboni, le ndlela yokufaka ngqo ivumela amachashazi amancane okukhanya ukuthi abekwe eduze kakhulu. Ama-pitch e-pixel (igebe) phakathi kwala machashazi angaba mancane njengo-P0.4. Lokhu kusondelana okukhulu kuyadingeka ngempela ekudaleni izibonisi ze-4K kanye ne-8K ezicacile kakhulu.

Okunye ukuqonda kubonisa inzuzo enkulu yokushisa. Ngenxa yokuthi ama-chips anamathiselwe ngqo esisekelweni kusetshenziswa i-glue yokushisa, isithiyo esinikeza ukumelana nokushisa siyancishiswa. Lokhu kuvumela ukushisa ukuthi kugeleze ngokushesha nangokulula kude nokukhanya bese kungena kusinki yokushisa yangaphandle.

Ikhwalithi Ebonakalayo Nenduduzo

Ukuma kwalezi zibani kuzenza zisebenze njengokukhanya okusabalalayo kunamachashazi ngamanye. Kukhiqiza ukukhanya okuthambile, okubushelelezi okususa ngokuphelele izithunzi ezinzima. Kwenza ukubukeka “okunamachashazi” kwemigqa yokukhanya endala kuphelelwe yisikhathi. Ukukhanya okubushelelezi kulungele izilungiselelo zobungcweti ngoba kulula emehlweni ngisho nangemva kokusetshenziswa isikhathi eside.

Ubuchwepheshe buvumele nokusetshenziswa kwama-flip chip akhethekile. Lokhu kuthuthukiswa kuqinisekisa ukuthi ukukhanya kuhlala kukhanya futhi kubonakala ngisho noma kubukwa kusuka ema-engeli amakhulu, nge-engeli yokubuka ehambisanayo yama-degrees angu-170.

Ukuqina Nokuthembeka

Umklamo oqinile, ohlanganisa konke uhlinzeka ngesivikelo esihle kakhulu ezweni langaphandle. Lawa mayunithi amelana kakhulu nezinselele zomzimba njengokungenwa kwesihlabathi namanzi. Ngokuvamile anesilinganiso se-IP65 kuya ku-IP68. Ngenxa yokuthi ama-chip ahlanganiswe ngokuphelele, ikhono lawo lokubekezelela ukushaqeka linamandla aphindwe kahlanu kunezibani ze-SMD. Lokhu kuwenza athembeke kakhulu ezindaweni ezimatasa, ezinabantu abaningi.

Ukuqonda kwemboni kuqokomisa ukuthi zithembeke kangakanani. Inani lamayunithi ahlulekayo kwesigidi (Izinga Lokwehluleka noma i-ppm) kulawa mamojula ngokuvamile lingaphansi kuka-50 ppm. Ngokuphambene nalokho, ama-bead ajwayelekile e-SMD ngamanye avame ukwehluleka ngesilinganiso esingu-200 kuya ku-500 ppm.

Ithebula Lokuqhathanisa Ikhanda Nekhanda: I-COB LED vs I-SMD LED

Izicelo Eziqondene Nobuchwepheshe be-SMD

Isikhathi Sokukhetha Ubuchwepheshe be-SMD

Uma udinga ukukhanya okukhulu, ukuguquguquka, kanye nokusebenza kahle kwezindleko kuphrojekthi yakho yokukhanyisa, izibani zokufaka ubuso (SMD) ziyindlela engcono kakhulu.

● Ukusetshenziswa Kwangaphandle Nemicimbi: Ziyakwazi ukuba namazinga aphezulu kakhulu okukhanya afinyelela ku-10,000+ nits. Lokho kuzenza zibe lula kakhulu kumabhodi okukhangisa angaphandle elangeni eliqondile. Zinhle kakhulu futhi ekuqashweni kwemishini kanye nemicimbi ebukhoma edinga ukusethwa njalo kanye nokuhlukaniswa. Ziyisisombululo esifanele sokuhamba njengoba zingalungiswa.

● Isimo Sezulu Nesabelomali: Uma udinga ukukhanya kokuhlobisa, ama-SMD angcono kakhulu ezibanini zokugqamisa kanye nezindawo ze-karaoke (ama-KTV). Ayakwazi ukukhiqiza izigidi zemibala esebenzisa ukuxubana kwe-RGB. Kumaphrojekthi ajwayelekile, ahlinzeka ngenhlanganisela efanele yokusebenza okujwayelekile kanye nezindleko zokuqala eziphansi.

Imininingwane yama-LED e-SMD

Uma ukhetha amamodeli athile, ama-chip angu-3528 ayinketho engabizi kakhulu yezidingo zombala owodwa. Kodwa-ke, uma ufuna ikhono lokushintsha imibala, ama-chip angu-5050 ayisinqumo esingcono. Uma iphrojekthi yakho idinga ukukhanya komhlaba wonke okungu-360°, kufanele usebenzise izintambo ze-LED ezikhethekile. Empeleni lawa ama-chip ajwayelekile e-SMD asebenza ngamandla aphansi.

Izicelo Eziqondile Kubuchwepheshe be-COB

Isikhathi Sokukhetha Ubuchwepheshe be-COB

Izibani ze-COB ziyisinqumo esingcono kakhulu ezindaweni zobungcweti, izibonisi ezibonakalayo zezinga eliphezulu, kanye nomsebenzi wezimboni onzima.

● Izikrini Nezibonisi Eziphezulu: Amakamelo okusakaza nokulawula adinga ubuchwepheshe be-COB ngoba umthombo wokukhanya okungaphezulu unikeza izithombe "ezisezingeni lobuciko". Azikhathazi amehlo. Izitolo ezithengisa izinto ezisezingeni eliphezulu nazo ziyawasebenzisa ukuze zibonise izinto zikanokusho. Zisebenzisa indawo engenamthungo kanye nomnyama ojulile.

● Ukusetshenziswa Kwezimboni Nokucacile Okuphezulu: Ukusetshenziswa okunzima, ikhono eliphakeme le-COB lokubekezelela ukushisa nokuqina lenza kube kuhle kakhulu ezikhangisweni zangaphandle ezinde. Lokhu kuvame ukusetshenziswa ekukhanyeni komgwaqo okunezitezi eziphakeme kanye nasezitezi ezishisayo zasefektri. Ngokubukeka, kuyindlela kuphela enengqondo yokubonisa izikrini ze-4K ezinesinqumo esiphezulu lapho izikhala zamaphikseli kudingeka zingabonakali nhlobo kubantu abame eduze.

Ulwazi Lwemboni lwe-COB

Ochwepheshe babheka ubuchwepheshe be-COB njengekusasa lomkhakha wokukhanyisa nokubonisa ngoba busebenza njengesisekelo sokudala isizukulwane esilandelayo sezibonisi zokukhanya ezincane. Kuyisinqumo esingcono kakhulu sokukhanyisa okuphezulu. Umklamo uvumela abakhiqizi ukuthi bapakishe inani elikhulu lokukhanya endaweni encane kakhulu ngaphandle kokwehlisa ikhwalithi yokukhanya.

Isiphetho

Ukukhetha phakathi kwalezi zindlela ezimbili zokukhanyisa kuncike ngokuphelele ezintweni eziza kuqala kuphrojekthi yakho. Idizayini ye-SMD isalokhu iyindinganiso eqinisekisiwe yezimpawu zezentengiselwano kanye nemihlobiso eshintsha umbala egqamile. Ilungele futhi amaphrojekthi angabizi kakhulu lapho izibani kumele kube lula ukuzilungisa.

Ngakolunye uhlangothi, i-COB iyindlela engcono yokutshala imali uma ufuna ukusebenza okuphezulu kokubukwayo. Inikeza ukukhanya okungenamthungo, ukuqina okukhulu, kanye nemininingwane yesikrini ebukhali kakhulu.

Uma wenza isinqumo sakho, khetha umenzi olawula zonke izinyathelo zenqubo yokukhiqiza. Ukulawula yonke inqubo kubalulekile ukuqinisekisa ikhwalithi ehambisanayo. Lokhu kuyiqiniso ikakhulukazi ngesikhathi sesinyathelo esibucayi sokumbozwa kwe-LED. Kungakhathaliseki ukuthi wakha igumbi lokulawula eliphezulu elinezikrini ze-COB zobungcweti noma udinga isabelomali esincane, esikhanyayo kakhulu (i-lumen ephezulu) Imichilo ye-SMD yokwakha ngaphandle, Glamor Lighting inikeza izixazululo eziningi eziqinisekisiwe nezivikelwe ngokomthetho (ezivikelwe yilungelo lobunikazi).

Ungahlola Uchungechunge lwe-COB LED Strip Light ukuze uthole ukukhanya okubushelelezi ngokuphelele, okuqhubekayo. Ngaphandle kwalokho, ungabheka izibani zethu ezinama-chip okulawula akhelwe ngaphakathi abizwa ngokuthi Uchungechunge lwe-IC LED Strip oluqhubekayo ukuze kukhanye kahle kakhulu kwezentengiselwano. Xhumana nawe Namuhla ukuze uthole ikhotheshini eyenziwe ngokwezifiso efanelana kahle nezidingo zakho zobungcweti.

Imibuzo Evame Ukubuzwa

1. Uyini umehluko omkhulu phakathi kwama-LED e-SMD nama-COB?

Izibani ze-SMD zinama-chip ngamanye afakwe ngokwehlukana ebhodini. Zinhle kakhulu ekushintsheni imibala. Izibani ze-COB zihlanganisa ama-chip amaningi ndawonye ngaphansi kwengubo eyodwa. Lokhu kudala iphaneli yokukhanya ebushelelezi neqinile engenamachashazi abonakalayo.

2. Yiluphi uhlobo lwe-LED olukhanya kakhulu futhi olusebenza kahle kakhulu?

Izibani ze-COB ngokuvamile zisebenza kahle kakhulu. Zikhiqiza ukukhanya okukhulu ngenkathi zisebenzisa amandla amancane. Ziphinde zilawule ukushisa kangcono kakhulu. Kodwa-ke, izibani ze-SMD zisanikeza ukukhanya okukhulu futhi zilungele izibonisi eziningi ezijwayelekile nezimpawu zangaphandle.

3. Ingabe lezi zibani kulula ukuzilungisa uma ziphuka?

Izibani ze-SMD kulula futhi zishibhile ukuzilungisa. Uma ukukhanya okuncane okukodwa kungasebenzi, ushintsha kuphela leyo ngxenye ethile. Izibani ze-COB azilungiswa kalula. Uma i-pixel iphuka, kufanele ufake lonke ibhodi esikhundleni salo. Kodwa-ke, amayunithi e-COB akhiwe ngokuqinile futhi ngokuvamile ahlala isikhathi eside ngaphambi kokuba angasebenzi.