Eminyakeni emithathu edlule, ukuhlinzekwa nokuthengiswa kwezikrini ezinkulu ze-pixel ze-LED kugcine izinga lokukhula elihlanganisiwe lonyaka elingaphezu kwama-80%.Leli zinga lokukhula alihlanganisi nje kuphela phakathi kobuchwepheshe obuphezulu embonini yanamuhla enesikrini esikhulu, kodwa futhi nezinga lokukhula eliphezulu lomkhakha wesikrini esikhulu.Ukukhula kwemakethe okusheshayo kukhombisa ubungqabavu obukhulu bobuchwepheshe be-LED bephikseli encane.
I-COB: Ukunyuka Kwemikhiqizo "Yesizukulwane Sesibili".
Izikrini ze-LED ze-pixel ezincane zisebenzisa ubuchwepheshe be-COB encapsulation zibizwa ngokuthi "isizukulwane sesibili" isibonisi se-LED se-pixel encane.Kusukela ngonyaka odlule, lolu hlobo lomkhiqizo lubonise ukuthambekela kokukhula kwemakethe ngesivinini esikhulu futhi sekuyinkomba yomgwaqo "yenketho engcono kakhulu" yeminye imikhiqizo egxile kumyalo ophezulu kanye nezikhungo zokuthumela.
I-SMD, i-COB kuya ku-MicroLED, Amathrendi Azayo Wezikrini Ezinkulu Ze-Pitch LED
I-COB isifinyezo se-English ChipsonBoard.Ubuchwepheshe bokuqala baqala ngawo-1960.“Kuwumklamo kagesi” okuhloswe ngawo ukwenza lula ukwakheka kwephakheji yezingxenye ze-elekthronikhi ezinhle kakhulu futhi kuthuthukiswe ukuzinza komkhiqizo wokugcina.Ukukhuluma nje, ukwakheka kwephakheji ye-COB ukuthi i-chip yasekuqaleni, engenalutho noma ingxenye ye-elekthronikhi ithengiswa ngokuqondile ebhodini lesifunda futhi imbozwe nge-resin ekhethekile.
Kuzinhlelo zokusebenza ze-LED, iphakheji ye-COB isetshenziswa kakhulu ezinhlelweni zokukhanyisa zamandla aphezulu kanye nesibonisi se-LED sephikseli encane.Owokuqala ucabangela izinzuzo zokupholisa ezilethwa ubuchwepheshe be-COB, kuyilapho lokhu kwakamuva kungasebenzisi ngokugcwele izinzuzo zokuzinza kwe-COB ekupholiseni umkhiqizo, kodwa futhi kufinyelela okuyingqayizivele ochungechungeni "lwemiphumela yokusebenza".
Izinzuzo ze-COB encapsulation ezikrinini ze-LED ezincane zephikseli zifaka: 1. Nikeza inkundla yokupholisa engcono.Ngenxa yokuthi iphakheji ye-COB iyikristalu yezinhlayiyana ngokuqondile ekuxhumaneni okuseduze nebhodi le-PCB, ingakwazi ukusebenzisa ngokugcwele "indawo ye-substrate" ukuze kuzuzwe ukuqhutshwa kokushisa nokukhishwa kokushisa.Izinga lokukhipha ukushisa liyisici esiyinhloko esinquma ukuzinza, isilinganiso sephoyinti kanye nempilo yesevisi yezikrini ze-LED zephikseli ezincane.Isakhiwo esingcono sokukhipha ukushisa ngokwemvelo sisho ukuzinza okungcono kukonke.
2. Iphakheji ye-COB iyisakhiwo esivalwe ngempela.Kubandakanya ibhodi lesifunda le-PCB, izinhlayiya zekristalu, izinyawo ezisodayo nemikhondo, njll. konke kuvalwe uphawu ngokugcwele.Izinzuzo zesakhiwo esivaliwe zisobala - isibonelo, umswakama, i-bump, umonakalo wokungcola, nokuhlanza indawo elula yedivayisi.
3. Iphakheji ye-COB ingaklanywa ngezici “ze-display optics” eziyingqayizivele.Isibonelo, isakhiwo sayo sephakheji, ukwakheka kwendawo ye-amorphous, ingambozwa ngezinto ezimnyama ezibamba ukukhanya.Lokhu kwenza umkhiqizo wephakheji ye-COB ube ngcono nakakhulu ngokuphambene.Kwesinye isibonelo, iphakheji ye-COB ingenza izinguquko ezintsha ekwakhiweni kokubona ngaphezulu kwekristalu ukuze ibone ukwenziwa ngokwemvelo kwezinhlayiya ze-pixel futhi ithuthukise ukungalungi kosayizi wezinhlayiyana ezibukhali kanye nokukhanya okukhazimulayo kwezikrini ze-LED zephikseli ezincane ezivamile.
4. I-COB encapsulation crystal soldering ayisebenzisi inqubo ye-solder ye-SMT reflow soldering.Esikhundleni salokho, ingasebenzisa "inqubo ye-solder yezinga eliphansi lokushisa" okuhlanganisa ukushisela kwe-thermal pressure, i-ultrasonic welding, kanye ne-golden wire bonding.Lokhu kwenza izinhlayiya zekristalu ze-semi-conductor LED ezintekenteke zingabi ngaphansi kwamazinga okushisa angaphezu kwama-240 degrees.Inqubo yezinga lokushisa eliphezulu iyindawo eyinhloko yamabala amancane anegebe le-LED namalambu afile, ikakhulukazi amalambu afile ama-batch.Lapho inqubo yokunamathisela i-die ikhombisa izibani ezifile futhi idinga ukulungiswa, "i-secondary high-temperature reflow soldering" nayo izokwenzeka.Inqubo ye-COB iqeda ngokuphelele lokhu.Lona futhi ukhiye wezinga elibi lenqubo ye-COB ekubeni ingxenye eyodwa kweshumi kuphela yemikhiqizo ekhuphuka phezulu.
Vele, inqubo ye-COB nayo “inobuthakathaka” bayo.Okokuqala udaba lwezindleko.Inqubo ye-COB ibiza ngaphezu kwenqubo yokukhweza phezulu.Lokhu kungenxa yokuthi inqubo ye-COB empeleni iyisiteji sokuhlanganisa, futhi ukukhweza okungaphezulu kuwukuhlanganiswa kwetheminali.Ngaphambi kokuthi kusetshenziswe inqubo yokukhweza okungaphezulu, izinhlayiya zekristalu ye-LED sezivele zenze inqubo ye-encapsulation.Lo mehluko ubangele i-COB ukuthi ibe nemikhawulo ephezulu yokutshala imali, imikhawulo yezindleko, kanye nemikhawulo yobuchwepheshe kusukela kumbono webhizinisi lesikrini se-LED.Kodwa-ke, uma "iphakheji yesibani nokuhlanganiswa kwetheminali" yenqubo yokufakwa phezulu kuqhathaniswa nenqubo ye-COB, ukuguqulwa kwezindleko kwamukeleka ngokwanele, futhi kukhona ukuthambekela kokunciphisa izindleko ngokuzinza kwenqubo nokuthuthukiswa kwesikali sohlelo lokusebenza.
Okwesibili, ukungaguquguquki okubonakalayo kwemikhiqizo ye-COB encapsulation kudinga ukulungiswa sekwephuzile kwezobuchwepheshe.Kubandakanya ukungaguquguquki okumpunga kwe-encapsulating glue ngokwayo kanye nokuvumelana kwezinga lokukhanya kwekristalu ekhipha ukukhanya, ihlola ukulawulwa kwekhwalithi yalo lonke uchungechunge lwezimboni kanye nezinga lokulungiswa okulandelayo.Kodwa-ke, lokhu kungalungile kuyindaba "yesipiliyoni esithambile."Ngokusebenzisa uchungechunge lwentuthuko yezobuchwepheshe, izinkampani eziningi embonini ziye zazuza ubuchwepheshe obubalulekile bokugcina ukufana okubonakalayo kokukhiqiza okukhulu.
Okwesithathu, i-COB encapsulation emikhiqizweni enezikhala ezinkulu zamaphikseli kukhulisa kakhulu "ubunzima bokukhiqiza" bomkhiqizo.Ngamanye amazwi, ubuchwepheshe be-COB abungcono, abusebenzi emikhiqizweni enezikhala ze-P1.8.Ngoba ebangeni elikhulu, i-COB izoletha ukwanda kwezindleko okubaluleke kakhulu.- Lokhu kufana nje nenqubo yokukhweza phezulu ayikwazi ukufaka esikhundleni ngokuphelele isibonisi se-LED, ngoba kumikhiqizo ye-p5 noma ngaphezulu, inkimbinkimbi yenqubo yokukhweza phezulu iholela ezindlekweni ezikhuphukile.Inqubo ye-COB yesikhathi esizayo nayo izosetshenziswa kakhulu ku-P1.2 nangaphansi kwemikhiqizo ye-pitch.
Kungenxa ngqo yezinzuzo ezingenhla kanye nokubi kwe-COB encapsulation encane ye-pixel pitch LED display that: 1.COB akuyona indlela yokuqala yokukhethwa komzila yesibonisi esincane se-pixel pitch LED.Ngenxa yokuthi i-pitch pitch encane ye-LED ithuthuka kancane kancane isuka kumkhiqizo we-pitch enkulu, nakanjani izozuza ifa lobuchwepheshe obuvuthiwe namandla okukhiqiza wenqubo yokukhweza phezulu.Lokhu kuphinde kwakha iphethini yokuthi ama-LED anamuhla afakwe phezulu kwephikseli athatha ingxenye enkulu yemakethe yezikrini ze-LED zephikseli ezincane.
2. I-COB “iwumkhuba ongenakugwenywa” wesibonisi se-LED esinephikseli encane ukuze kuthuthukiswe ukushintshela kuma-pitch amancane kanye nasezinhlelweni ezisezingeni eliphezulu zasendlini.Ngoba, ekuminyana kwe-pixel ephakeme, izinga lokukhanya okufile lenqubo yokukhweza phezulu liba “inkinga yesici somkhiqizo esiqediwe.”Ubuchwepheshe be-COB bungathuthukisa kakhulu ukwenzeka kwesibani esifile sesibonisi esincane se-pixel se-LED.Ngesikhathi esifanayo, kumyalo ophezulu kanye nemakethe yesikhungo sokuthumela, umnyombo womphumela wokubonisa awuwona "ukukhanya" kodwa "ukunethezeka nokuthembeka" okubusayo.Lokhu kuyinzuzo impela yobuchwepheshe be-COB.
Ngakho-ke, kusukela ngo-2016, ukuthuthukiswa okusheshayo kwe-COB encapsulation encane ye-pixel pitch LED display kungabhekwa njengenhlanganisela "yephimbo elincane" kanye "nemakethe ephezulu".Ukusebenza kwemakethe yalo mthetho ukuthi izinkampani zesikrini ze-LED ezingabandakanyi emakethe yomyalo kanye nezikhungo zokuthumela zinesithakazelo esincane kubuchwepheshe be-COB;Izinkampani zesikrini se-LED ezigxile kakhulu emakethe ye-command and dispatch centers zinesithakazelo ikakhulukazi ekuthuthukisweni kobuchwepheshe be-COB.
Ubuchwepheshe abupheli, iMicroLED enesikrini esikhulu nayo isendleleni
Ushintsho lobuchwepheshe lwemikhiqizo yokubonisa i-LED luhlangabezane nezigaba ezintathu: kumugqa, ukukhweza okuphezulu, i-COB, nama-revolutions amabili.Ukusuka kumugqa, ukukhweza phezulu, ukuya ku-COB kusho iphimbo elincane nokucaca okuphezulu.Le nqubo yokuziphendukela kwemvelo inqubekelaphambili yesibonisi se-LED, futhi isithuthukise nezimakethe zezicelo ezisezingeni eliphezulu kakhulu.Ngakho ingabe lolu hlobo lokuziphendukela kwemvelo luzoqhubeka esikhathini esizayo?Impendulo ithi yebo.
Isikrini se-LED ukusuka emgqeni kuya phezulu kwezinguquko, inqubo edidiyelwe ngokuyinhloko kanye nezinguquko zephakheji lobuhlalu bezibani.Izinzuzo zalolu shintsho ikakhulukazi amandla aphezulu okuhlanganiswa kwendawo.Isikrini se-LED esigabeni se-pitch pitch encane, kusukela kunqubo yokukhuphuka phezulu kuya ekushintsheni kwenqubo ye-COB, ngaphezu kwenqubo yokuhlanganisa kanye nezinguquko zokucaciswa kwephakheji, ukuhlanganiswa kwe-COB kanye nenqubo yokuhlanganisa i-encapsulation kuyinqubo yokuhlukaniswa kabusha kwe-industry chain .Ngesikhathi esifanayo, inqubo ye-COB ayigcini nje ngokuletha amandla amancane okulawula i-pitch, kodwa futhi iletha ukunethezeka okubonakalayo okungcono kanye nesipiliyoni sokuthembeka.
Njengamanje, ubuchwepheshe be-MicroLED buye baba okunye okugxilwe kukho ocwaningweni olubheke phambili lwesikrini esikhulu se-LED.Uma kuqhathaniswa nenqubo yesizukulwane sangaphambilini se-COB yenqubo ye-pixel pitch LEDs, umqondo we-MicroLED awulona ushintsho ekuhlanganiseni noma kubuchwepheshe be-encapsulation, kodwa ugcizelela "i-miniaturization" yamakristalu e-lamp bead.
Ku-ultra-high pixel density encane ye-pitch yemikhiqizo yesikrini se-LED, kunezidingo zobuchwepheshe ezimbili ezihlukile: Okokuqala, ukuminyana kwamaphikseli aphezulu, ngokwako kudinga usayizi wesibani omncane.Ubuchwepheshe be-COB buhlanganisa ngokuqondile izinhlayiya zekristalu.Uma kuqhathaniswa nobuchwepheshe be-surface Mount, imikhiqizo yobuhlalu besibani esevele i-encapsulation iyathengiswa.Ngokwemvelo, banenzuzo yobukhulu bejometri.Lesi ngesinye sezizathu zokuthi kungani i-COB ifaneleka kakhulu emikhiqizweni emincane yesikrini se-LED.Okwesibili, ukuminyana kwephikseli ephakeme nakho kusho ukuthi izinga lokukhanya elidingekayo lephikseli ngalinye liyancipha.Izikrini ze-LED zephikseli ezincane kakhulu, ezisetshenziselwa kakhulu amabanga okubuka angaphakathi naseduze, zinezidingo zazo zokukhanya, ezehlile zisuka ezinkulungwaneni zokukhanya ezikrinini zangaphandle zaya ngaphansi kwenkulungwane, noma ngisho namakhulu amalumens.Ngaphezu kwalokho, ukwanda kwenani lamaphikseli endaweni yeyunithi ngayinye, ukuphishekela ukukhanya okukhanyayo kwekristalu eyodwa kuzowa.
Ukusetshenziswa kwesakhiwo se-MicroLED's micro-crystal, okuwukuhlangabezana nejiyomethri encane (ezinhlelweni ezijwayelekile, usayizi wekristalu we-MicroLED ungaba ingxenye eyodwa kuya kwenkulungwane eyishumi yohlu lwamanje lwesibani se-pixel encane ye-LED), futhi Hlangana nezici ze-low izinhlayiya zekristalu ezikhanyayo ezinezidingo eziphezulu zokuminyana kwe-pixel.Ngesikhathi esifanayo, izindleko zokubonisa i-LED ikakhulukazi zakhiwe izingxenye ezimbili: inqubo kanye ne-substrate.Isibonisi se-LED se-microcrystalline esincane sisho ukusetshenziswa okuncane kwe-substrate.Noma, lapho ukwakheka kwephikseli kwesikrini esincane se-pitch pitch lead kunganeliseka ngesikhathi esisodwa ngamakristalu e-LED anosayizi omkhulu nosayizi omncane, ukwamukela lokhu kusho izindleko eziphansi.
Kafushane, izinzuzo eziqondile zama-MicroLED ze-pixel encane ye-LED izikrini ezinkulu zifaka izindleko zento ephansi, ukukhanya okuphansi okungcono, ukusebenza kwe-grayscale ephezulu, nejometri encane.
Ngesikhathi esifanayo, ama-MicroLED anezinzuzo ezengeziwe zezikrini ze-LED zephikseli encane: 1. Izinhlamvu ezincane zekristalu zisho ukuthi indawo ekhanyayo yezinto ezicwebezelayo yehle kakhulu.Isikrini se-LED esinephikseli esincane singasebenzisa izinto ezimunca ukukhanya namasu endaweni engaphezulu ukuze kuthuthukiswe imiphumela ye-grayscale emnyama nemnyama yesikrini se-LED.2. Izinhlayiya zekristalu ezincane zishiya isikhala esengeziwe somzimba wesikrini se-LED.Lezi zikhala zesakhiwo zingahlelwa nezinye izingxenye zenzwa, izakhiwo ze-optical, izakhiwo zokushisa ukushisa, nokunye okunjalo.3. Isibonisi se-LED sephikseli esincane sobuchwepheshe be-MicroLED njengefa lenqubo ye-COB encapsulation iyonke futhi sibe nazo zonke izinzuzo zemikhiqizo yobuchwepheshe be-COB.
Yiqiniso, abukho ubuchwepheshe obuphelele.I-MicroLED nayo injalo.Uma kuqhathaniswa nesibonisi se-LED se-pixel encane evamile kanye nesibonisi se-LED esivamile se-COB-encapsulation, ububi obuyinhloko be-MicroLED "inqubo yokuhlanganisa eningilizayo."Imboni ibiza lokhu "inani elikhulu lobuchwepheshe bokudlulisa."Okusho ukuthi, izigidi zamakristalu e-LED ku-wafer, kanye nokusebenza kwekristalu eyodwa ngemva kokuhlukaniswa, akukwazi ukuqedwa ngendlela elula yomshini, kodwa kudinga imishini nezinqubo ezikhethekile.
Lesi sakamuva futhi "i-none bottleneck" embonini yamanje ye-MicroLED.Kodwa-ke, ngokungafani nezibonisi ze-Ultra-fine, ze-Ultra-high-density MicroLED ezisetshenziswa ku-VR noma izikrini zefoni ephathekayo, ama-MicroLED aqale asetshenziselwa izibonisi ze-LED ezinephimbo elikhulu ngaphandle komkhawulo "we-pixel density".Isibonelo, isikhala se-pixel sezinga le-P1.2 noma le-P0.5 siwumkhiqizo oqondiwe okulula "ukufinyelela" kubuchwepheshe "bokudlulisa okukhulu".
Ukuphendula inkinga yenani elikhulu lobuchwepheshe bokudlulisa, iqembu lebhizinisi laseTaiwan lidale isisombululo sokuyekethisa, okuyizizukulwane ezingu-2.5 zezikrini ze-LED zephikseli ezincane: I-MiniLED.Izinhlayiya zekristalu ze-MiniLED ezinkulu kune-MicroLED evamile, kodwa kusesele ingxenye eyodwa kuphela kweshumi yamakristalu esikrini se-LED avamile wephikseli, noma amashumi ambalwa.Ngalo mkhiqizo we-MiNILED owehlisiwe ngobuchwepheshe, i-Innotec ikholelwa ukuthi izokwazi ukufeza "inqubo yokuvuthwa" kanye nokukhiqizwa ngobuningi eminyakeni engu-1-2.
Sekukonke, ubuchwepheshe be-MicroLED busetshenziswa emakethe encane yephikseli ye-LED kanye nemakethe yesikrini esikhulu, engakha "ubuciko obuhle kakhulu" bokusebenza kwesibonisi, ukuqhathanisa, amamethrikhi ombala, namazinga okonga amandla adlula kude imikhiqizo ekhona.Kodwa-ke, ukusuka ekukhuphukeni okungaphezulu kuya ku-COB kuya ku-MicroLED, imboni encane ye-pixel pitch LED izothuthukiswa kusukela esizukulwaneni kuya kwesinye, futhi izodinga ukuqamba okusha okuqhubekayo kubuchwepheshe benqubo.
I-Craftsmanship Reserve Ivivinya "Isivivinyo Sokugcina" sephikseli elincane le-LED Industry Manufacturers
Imikhiqizo yesikrini se-LED kusukela kulayini, phezulu kuya ku-COB, ukuthuthukiswa kwayo okuqhubekayo ezingeni lokuhlanganiswa, ikusasa lemikhiqizo yesikrini esikhulu se-MicroLED, ubuchwepheshe "bokudlulisa okukhulu" kunzima nakakhulu.
Uma inqubo ye-in-line iwubuchwepheshe bangempela obungaqedwa ngesandla, khona-ke inqubo yokufakwa phezulu kuyinqubo okumele ikhiqizwe ngomshini, futhi ubuchwepheshe be-COB budinga ukuqedwa endaweni ehlanzekile, okuzenzakalelayo ngokugcwele, futhi. uhlelo olulawulwa ngamanani.Inqubo ye-MicroLED yesikhathi esizayo ayinazo zonke izici ze-COB kuphela, kodwa futhi iklama inombolo enkulu yemisebenzi yokudlulisa idivayisi ye-elekthronikhi "encane".Ubunzima bubuye buthuthukiswe, okubandakanya isipiliyoni sokukhiqiza imboni ye-semiconductor.
Njengamanje, inani elikhulu lobuchwepheshe bokudlulisa obumele iMicroLED limele ukunakwa nocwaningo kanye nokuthuthukiswa kweziqhwaga zamazwe ngamazwe njenge-Apple, i-Sony, i-AUO ne-Samsung.I-Apple inesampula yokubonisa imikhiqizo egqokekayo, futhi u-Sony usezuze ukukhiqizwa ngobuningi bezikrini ezinkulu ze-LED ze-P1.2 pitch splicing.Umgomo wenkampani yaseTaiwan ukukhuthaza ukuvuthwa kwenani elikhulu lobuchwepheshe bokudlulisa futhi ibe imbangi yemikhiqizo yokubonisa ye-OLED.
Kule ntuthuko eyenziwayo yezikrini ze-LED, ukuthambekela kobunzima benqubo obukhula kancane kunezinzuzo zako: isibonelo, ukukhulisa umkhawulo wemboni, ukuvimbela izimbangi zamanani ezingenangqondo, ukukhulisa ukugxila embonini, nokwenza izinkampani eziyinhloko "zikwazi ukuncintisana".Izinzuzo “ziqinisa kakhulu futhi zidale imikhiqizo engcono.Kodwa-ke, lolu hlobo lokuthuthukiswa kwezimboni lubuye lube nokubi.Okusho ukuthi, umkhawulo wezizukulwane ezintsha zokwenza ngcono ubuchwepheshe, umkhawulo wokuthola imali, umkhawulo wamakhono okucwaninga nokuthuthukiswa uphakeme, umjikelezo wokwakha izidingo zokwazisa abantu mude, kanye nengozi yokutshala izimali nayo yanda kakhulu.Lezi zinguquko zakamuva zizoba usizo kakhulu ekuphatheni izikhondlakhondla zamazwe ngamazwe kunokuthuthukisa izinkampani zakuleli ezisungula izinto ezintsha.
Noma ngabe umkhiqizo we-LED wokugcina wephikseli ungabukeka kanjani, intuthuko entsha yezobuchwepheshe ihlale ikufanele ukulinda.Kunobuchwepheshe obuningi obungase buthathwe kumagugu ezobuchwepheshe embonini ye-LED: hhayi i-COB kuphela kodwa nobuchwepheshe be-flip-chip;hhayi kuphela ukuthi ama-MicroLED angaba amakristalu e-QLED noma ezinye izinto.
Ngamafuphi, iphikseli encane ye-LED imboni yesikrini iyimboni eqhubeka nokusungula nokuthuthukisa ubuchwepheshe.
Isikhathi sokuthumela: Jun-08-2021