Kule minyaka mithathu idlulileyo, unikezelo kunye nokuthengiswa kwephikseli encinci ye-LED izikrini ezinkulu ziye zagcina inqanaba lokukhula elihlanganisiweyo lonyaka elingaphezulu kwe-80%.Eli nqanaba lokukhula aligcini nje ngokubeka phakathi kwetekhnoloji ephezulu kwishishini lanamhlanje lesikrini esikhulu, kodwa nakwizinga eliphezulu lokukhula kweshishini lesikrini esikhulu.Ukukhula ngokukhawuleza kwemarike kubonisa amandla amakhulu etekhnoloji encinci yepixel ye-LED.
COB: Ukunyuka kweeMveliso "zeSizukulwana seSibini".
Izikrini ezincinci ze-pixel ze-LED zisebenzisa itekhnoloji ye-COB encapsulation ibizwa ngokuba "isizukulwana sesibini" isiboniso se-LED esincinci se-pixel.Ukususela kunyaka odlulileyo, olu hlobo lwemveliso lubonise umkhwa wokukhula kweemarike zesantya esiphezulu kwaye ibe "yeyona ndlela ingcono kakhulu" yeendlela ezithile zokuthengisa ezigxininise kumyalelo ophezulu kunye namaziko okuthumela.
I-SMD, i-COB kwi-MicroLED, i-Future Trends ye-Large Pitch LED Screens
I-COB sisishunqulelo se-English ChipsonBoard.Itekhnoloji yokuqala yavela kwi-1960s."Luyilo lombane" olujolise ekwenzeni lula ukwakheka kwepakethe yezixhobo ze-elektroniki ze-ultra-fine kunye nokuphucula ukuzinza kwemveliso yokugqibela.Ukuthetha nje, ukwakhiwa kwephakheji ye-COB kukuba i-original, i-chip engenanto okanye i-electronic component ithengiswa ngokuthe ngqo kwibhodi yesiphaluka kwaye ihlanganiswe ne-resin ekhethekileyo.
Kwizicelo ze-LED, iphakheji ye-COB isetyenziswa ikakhulu kwiinkqubo zokukhanyisa amandla aphezulu kunye ne-pixel encinci yokubonisa i-LED.Owangaphambili uqwalasela iingenelo zokupholisa eziziswa yiteknoloji ye-COB, ngelixa le yokugqibela ingasebenzisi ngokupheleleyo izibonelelo zokuzinza kwe-COB ekupholiseni kwemveliso, kodwa iphinda iphumelele ngokukodwa kuluhlu "lweempembelelo zokusebenza".
Izibonelelo ze-COB encapsulation kwi-pitch pitch encinci ye-LED izikrini ziquka: 1. Ukubonelela ngeqonga lokupholisa elingcono.Ngenxa yokuba iphakheji ye-COB yikristale ye-particle ngokuthe ngqo ngokusondeleyo kunye nebhodi ye-PCB, inokusebenzisa ngokupheleleyo "indawo ye-substrate" ukufezekisa ukuqhutyelwa kokushisa kunye nokutshatyalaliswa kobushushu.Inqanaba lokutshatyalaliswa kobushushu yeyona nto iphambili emisela uzinzo, inqanaba lesiphene kunye nobomi benkonzo yeepikseli ezincinci zezikrini ze-LED.Isakhiwo esingcono sokutshatyalaliswa kobushushu ngokwemvelo sithetha ukuzinza okungcono.
2. Iphakheji yeCOB sisakhiwo esitywinwe ngokwenene.Kubandakanywa ibhodi yesekethe ye-PCB, amasuntswana ekristale, iinyawo ezithengiswayo kunye nezikhokelo, njl.njl zonke zitywinwe ngokupheleleyo.Iinzuzo zesakhiwo esitywiniweyo zicacile - umzekelo, umswakama, i-bump, umonakalo wokungcola, kunye nokucoca indawo elula yesixhobo.
3. Iphakheji ye-COB inokuyilwa kunye neempawu ezikhethekileyo "ze-display optics".Ngokomzekelo, isakhiwo sayo sephakheji, ukubunjwa kwendawo ye-amorphous, inokugqunywa ngezinto ezimnyama ezithatha ukukhanya.Oku kwenza ukuba imveliso yephakheji ye-COB ibengcono ngakumbi ngokuchaseneyo.Omnye umzekelo, iphakheji ye-COB inokwenza uhlengahlengiso olutsha kuyilo lwe-optical ngaphezulu kwekristale ukuqonda ukwenziwa kwendalo kwamasuntswana e-pixel kunye nokuphucula ubugwenxa bobungakanani bamasuntswana abukhali kunye nokukhanya okuqaqambileyo kwezikrini ezincinci zepixel ze-LED.
4. I-COB encapsulation crystal soldering ayisebenzisi inkqubo ye-solder ye-SMT ye-reflow ye-SMT.Endaweni yoko, inokusebenzisa "inkqubo yokuthengisa iqondo lobushushu eliphantsi" kubandakanya i-welding yoxinzelelo lwe-thermal, i-ultrasonic welding, kunye ne-golden wire bonding.Oku kwenza ukuba i-semi-conductor ye-LED ye-crystal particles ebuthathaka ingabi phantsi kwamaqondo okushisa aphezulu angaphezu kwama-240 degrees.Inkqubo yobushushu obuphezulu yeyona nto iphambili yeendawo ezincinci ze-LED ezifileyo kunye nezibane ezifileyo, ngakumbi izibane ezifileyo ze-batch.Xa inkqubo yokuncamathelisa i-die ibonisa izibane ezifileyo kwaye ifuna ukulungiswa, "i-secondary high-temperature reflow soldering" iya kwenzeka nayo.Inkqubo yeCOB iyayiphelisa ngokupheleleyo le nto.Oku kukwasisitshixo senkqubo ye-COB yezinga elibi lendawo yokuba sisinye kuphela kwishumi leemveliso eziphezu komhlaba.
Ewe kunjalo, inkqubo yeCOB ikwanayo “nobuthathaka” bayo.Eyokuqala ngumba weendleko.Inkqubo ye-COB ixabisa ngaphezulu kwenkqubo yokunyuka komphezulu.Oku kungenxa yokuba inkqubo ye-COB eneneni linqanaba lokugquma, kwaye intaba engaphezulu ludibaniso lwetheminali.Ngaphambi kokuba inkqubo yokunyuka komhlaba iphunyezwe, iinqununu ze-crystal ze-LED sele ziqhube inkqubo ye-encapsulation.Lo mahluko ubangele ukuba i-COB ibe nemigangatho ephezulu yotyalo-mali, imilinganiselo yeendleko, kunye nemigangatho yezobugcisa ukusuka kwimbono yeshishini lesikrini se-LED.Nangona kunjalo, ukuba "iphakheji yesibane kunye nokuhlanganiswa kwe-terminal" yenkqubo yokunyuka kwendawo ifaniswa nenkqubo ye-COB, utshintsho lweendleko luyamkeleka ngokwaneleyo, kwaye kukho ukuthambekela kweendleko zokunciphisa kunye nokuzinza kwenkqubo kunye nophuhliso lwesikali sesicelo.
Okwesibini, ukuhambelana okubonakalayo kweemveliso ze-COB ze-encapsulation zifuna ukulungiswa kobugcisa kade.Kubandakanya ukuhambelana kwegrey ye-glue ye-encapsulating ngokwayo kunye nokuhambelana kwezinga lokukhanya kwe-crystal ekhupha ukukhanya, ivavanya ukulawulwa kwekhwalithi ye-industrial chain chain kunye nenqanaba lohlengahlengiso olulandelayo.Nangona kunjalo, oku kungalunganga kungumcimbi "wokuthamba".Ngokusebenzisa uthotho lwenkqubela phambili yetekhnoloji, uninzi lweenkampani kwishishini ziye zakwazi ubugcisa obuphambili bokugcina ukuhambelana okubonakalayo kwemveliso enkulu.
Okwesithathu, ukufakwa kwe-COB kwiimveliso ezinesithuba esikhulu se-pixel kwandisa kakhulu "ubunzima bemveliso" yemveliso.Ngamanye amazwi, itekhnoloji ye-COB ayikho ngcono, ayisebenzi kwiimveliso ezinezithuba ze-P1.8.Kuba kumgama omkhulu, i-COB iya kuzisa ukonyuka kweendleko okubaluleke ngakumbi.- Oku kufana nenkqubo yokunyuka kwendawo ayinakukwazi ukutshintsha ngokupheleleyo umboniso we-LED, kuba kwi-p5 okanye iimveliso ezingaphezulu, ubunzima benkqubo yokunyuka kwendawo bukhokelela kwiindleko ezongeziweyo.Inkqubo yexesha elizayo ye-COB nayo iya kusetyenziswa kakhulu kwi-P1.2 nangaphantsi kweemveliso ze-pitch.
Kungenxa kanye ngenxa yeenzuzo ezingentla kunye nokungalunganga kwe-COB encapsulation encinci ye-pixel pitch isiboniso se-LED esithi: I-1.COB ayisiyiyo indlela yokuqala yokukhetha kwi-pixel encinci yokubonisa i-LED.Ngenxa yokuba i-pixel encinci ye-pitch ye-LED ihamba ngokuthe ngcembe ukusuka kwimveliso ye-pitch-pitch enkulu, ngokuqinisekileyo iya kufumana ilifa letekhnoloji evuthiweyo kunye nomthamo wemveliso wenkqubo yokunyuka komphezulu.Oku kukwayile ipateni yokuba ii-LEDs zepixel ezincinci zanamhlanje ezibekwe phezulu zihlala kuninzi lwentengiso yezikrini ezincinci zepixel ze-LED.
2. I-COB "yinto engenakuthintelwa" ye-pixel encinci ye-pitch ye-LED ebonisa ukuqhubela phambili inguqu kwi-pitches encinci kunye ne-high-end-indoor applications.Kuba, kuxinzelelo oluphezulu lwe-pixel, izinga lokukhanya okufileyo kwenkqubo yokunyuka komphezulu iba "yingxaki yesiphene semveliso."Itekhnoloji ye-COB inokuphucula kakhulu into yesibane esifileyo se-pixel encinci yokubonisa i-LED.Ngexesha elifanayo, kwi-high-end command kunye ne-dispatch center market, i-core of the display effect ayikho "ukukhanya" kodwa "ukukhululeka kunye nokuthembeka" okulawulayo.Olu luncedo kanye lwetekhnoloji yeCOB.
Ke ngoko, ukusukela ngo-2016, uphuhliso olukhawulezileyo lwe-COB encapsulation encinci yepixel pitch isiboniso se-LED sinokuthathwa njengendibaniselwano "ye-pitch encinci" kunye "nentengiso ephezulu".Ukusebenza kweemarike zalo mthetho kukuba iinkampani zesikrini ze-LED ezingabandakanyi kwimarike yomyalelo kunye namaziko okuthumela anomdla omncinci kwi-teknoloji ye-COB;Iinkampani zesikrini ze-LED ezigxile kakhulu kwimarike yomyalelo kunye namaziko okuthumela anomdla ngakumbi kuphuhliso lwetekhnoloji yeCOB.
Itekhnoloji ayinasiphelo, isikrini esikhulu seMicroLED sisendleleni
Utshintsho lobugcisa beemveliso zokubonisa i-LED luye lwafumana izigaba ezintathu: kwi-line, i-surface-mount, i-COB, kunye neenguqu ezimbini.Ukusuka emgceni, intaba-phezulu, ukuya kwi-COB ithetha inowuthi encinci kunye nesisombululo esiphezulu.Le nkqubo yokuzivelela yinkqubela phambili yomboniso we-LED, kwaye iye yaphuhlisa ngakumbi nangakumbi iimarike zezicelo eziphezulu.Ke ngaba olu hlobo lwendaleko lwetekhnoloji luya kuqhubeka kwixesha elizayo?Impendulo nguewe.
Isikrini se-LED ukusuka kwi-inline ukuya kumphezulu wotshintsho, inkqubo ehlanganisiweyo ngokukodwa kunye neenguqu zesibane zephakeji yotshintsho.Iinzuzo zolu tshintsho ubukhulu becala bubuchule obuphezulu bokudibanisa umphezulu.Isikrini se-LED kwisigaba esincinci se-pixel pitch, ukusuka kwinkqubo yokunyuka kwendawo ukuya kwiinguqu zenkqubo ye-COB, ngaphezu kwenkqubo yokudibanisa kunye neenguqu zenkcazo yephakheji, ukuhlanganiswa kwe-COB kunye nenkqubo yokudibanisa i-encapsulation yinkqubo yokwahlulahlula kwakhona kwe-industry chain chain.Kwangaxeshanye, inkqubo ye-COB ayizisi kuphela amandla amancinci okulawula i-pitch, kodwa izisa intuthuzelo ebonakalayo kunye namava okuthembeka.
Okwangoku, itekhnoloji ye-MicroLED iye yaba yenye into ekugxilwe kuyo kuphando olujonge phambili lwe-LED lwesikrini esikhulu.Xa kuthelekiswa nenkqubo ye-COB yesizukulwana sangaphambili se-pixel pitch LEDs, ingcamango ye-MicroLED ayitshintshi i-teknoloji yokudibanisa okanye i-encapsulation, kodwa igxininisa "i-miniaturization" yeekristale zesibane sesibane.
Kwi-Ultra-high pixel density encinci ye-pixel pitch yesikrini se-LED iimveliso, kukho iimfuno ezimbini ezizodwa zobugcisa: Okokuqala, ubuninzi be-pixel ephezulu, ngokwayo ifuna ubungakanani besibane esincinci.Itekhnoloji yeCOB ifaka ngokuthe ngqo amasuntswana ekristale.Xa kuthelekiswa neteknoloji yokunyuka komphezulu, iimveliso zentsimbi yesibane esele zifakwe kwi-encapsulation ziyathengiswa.Ngokwemvelo, banenzuzo yemilinganiselo yejometri.Esi sesinye sezizathu zokuba i-COB ilunge ngakumbi kwiimveliso ezincinci zesikrini se-LED.Okwesibini, ubuninzi bepixel obuphezulu bukwathetha ukuba inqanaba lokuqaqamba elifunekayo lepixel nganye liyancitshiswa.Izikrini ze-LED ze-pixel ezincinci ze-Ultra-ezincinci, ezisetyenziswa kakhulu kumgama wangaphakathi nakufutshane wokujonga, zineemfuno zazo zokuqaqamba, eziye zehla ukusuka kumawaka e-lumens kwizikrini zangaphandle ukuya ngaphantsi kwewaka, okanye namakhulu e-lumens.Ukongeza, ukwanda kwenani leepikseli kwindawo nganye yeyunithi, ukulandelwa kokukhanya okukhanyayo kwekristale enye kuya kuwa.
Ukusetyenziswa kweMicroLED ye-micro-crystal structure, oko kukuthi ukuhlangabezana nejiyometri encinci (kwizicelo eziqhelekileyo, ubukhulu bekristale beMicroLED bunokuba yinto enye ukuya kwiwaka elineshumi le-pixel encinci yoluhlu lwesibane se-LED), kwakhona Dibana neempawu ezisezantsi. amasuntswana ekristale aqaqambileyo aneemfuno eziphezulu zoxinano lwepixel.Ngexesha elifanayo, ixabiso lokubonisa i-LED ubukhulu becala liqulunqwe ngamacandelo amabini: inkqubo kunye ne-substrate.Umboniso omncinci we-microcrystalline we-LED uthetha ukusetyenziswa kwe-substrate encinci.Okanye, xa ulwakhiwo lwepixel yepixel encinci ye-pitch led screen inokwaneliswa ngaxeshanye ngobukhulu obukhulu kunye nobukhulu obuncinci bekristale ze-LED, ukwamkela le yokugqibela kuthetha ixabiso eliphantsi.
Isishwankathelo, izibonelelo ezithe ngqo ze-MicroLED ze-pixel pitch encinci ye-LED izikrini ezinkulu zibandakanya ixabiso lezinto eziphathekayo, ukukhanya okuphantsi okungcono, ukusebenza okuphezulu kwe-grayscale, kunye nejometri encinci.
Ngelo xesha, i-MicroLEDs ineenzuzo ezongezelelweyo ze-pixel pitch ye-LED izikrini: 1. Iinkozo ezincinci ze-crystal zithetha ukuba indawo ebonakalisa izinto ze-crystalline yehla kakhulu.Iscreen esincinci se-pixel se-LED sinokusebenzisa izixhobo ezifunxa ukukhanya kunye nobuchule kwindawo enkulu yokuphucula iziphumo ezimnyama kunye nobumnyama obungwevu besikrini se-LED.2. Amasuntswana ekristale amancinci ashiya indawo engaphezulu yesikrini se-LED.Ezi zithuba zesakhiwo zinokulungiswa kunye namanye amacandelo e-sensor, izakhiwo ze-optical, izakhiwo zokutshatyalaliswa kobushushu, kunye nokunye okunjalo.3. Umboniso omncinci we-pixel we-LED wobuchwephesha be-MicroLED njengelifa inkqubo ye-COB ye-encapsulation iyonke kwaye inazo zonke iingenelo zeemveliso zobuchwepheshe be-COB.
Ngokuqinisekileyo, akukho teknoloji igqibeleleyo.I-MicroLED ayinjalo.Xa kuthelekiswa nesiboniso se-pixel esincinci se-LED kunye nesiboniso se-LED esiqhelekileyo se-COB-encapsulation, eyona nto ingalunganga ye-MicroLED "yinkqubo ebanzi ngakumbi yokudibanisa."Umzi-mveliso ubiza oku "isixa esikhulu sobugcisa bokudlulisa."Oko kukuthi, izigidi zeekristali ze-LED kwi-wafer, kunye nokusebenza kwekristale enye emva kokwahlula, ayinakugqitywa ngendlela elula yomatshini, kodwa ifuna izixhobo ezikhethekileyo kunye neenkqubo.
Le yokugqibela kwakhona "akukho bhotile" kwishishini langoku leMicroLED.Nangona kunjalo, ngokungafaniyo ne-ultra-fine, i-ultra-high-high-density MicroLED iziboniso ezisetyenziswa kwi-VR okanye izikrini zeefowuni zeselula, ii-MicroLED ziqale zisetyenziselwa iziboniso ze-LED ezinkulu ngaphandle komda "wobuninzi bepixel".Ngokomzekelo, indawo ye-pixel ye-P1.2 okanye i-P0.5 yezinga yimveliso ekujoliswe kuyo kulula "ukuphumelela" kwi-teknoloji "yokudlulisa okukhulu".
Ukuphendula kwingxaki yezixa ezikhulu zetekhnoloji yokudlulisa, iqela leshishini laseTaiwan lenze isisombululo sokulungelelana, oko kukuthi izizukulwana ezi-2.5 ze-pixel encinci izikrini ze-LED: MiniLED.Amasuntswana ekristale e-MiniLED amakhulu kune-MicroLED yemveli, kodwa iseyisinye kwishumi kuphela se-pixel encinci ye-pitch yekristale yesikrini se-LED, okanye amashumi ambalwa.Ngale mveliso ye-MiNILED yokunciphisa iteknoloji, i-Innotec ikholelwa ukuba iya kukwazi ukufezekisa "inkqubo yokuvuthwa" kunye nokuveliswa kobuninzi kwi-1-2 iminyaka.
Lilonke, itekhnoloji ye-MicroLED isetyenziswa kwi-pixel encinci ye-LED kunye ne-market-screen-market market, enokudala "ubugcisa obugqibeleleyo" bokuboniswa kokusebenza, ukuchasana, i-metrics yombala, kunye namanqanaba okugcina amandla adlula kude iimveliso ezikhoyo.Nangona kunjalo, ukusuka ekunyukeni komphezulu ukuya kwi-COB ukuya kwi-MicroLED, i-pixel pitch encinci ye-LED imboni iya kuphuculwa ukusuka kwisizukulwana ukuya kwesinye, kwaye iya kufuna ukutsha okuqhubekayo kwinkqubo yetekhnoloji.
Ugcino loBugcisa luvavanya “uvavanyo olugqibeleleyo” lwepixel encinci abavelisi bemizi-mveliso ye-LED
Imveliso yesikrini se-LED ukusuka kumgca, umphezulu ukuya kwi-COB, ukuphuculwa kwayo okuqhubekayo kwinqanaba lokudibanisa, ikamva lemveliso ye-MicroLED enkulu-screen, iteknoloji "yokudluliselwa okukhulu" kunzima nakakhulu.
Ukuba inkqubo ye-in-line yitekhnoloji ye-original enokugqitywa ngesandla, ngoko inkqubo yokunyusa umgangatho yinkqubo ekufuneka yenziwe ngoomatshini, kwaye iteknoloji ye-COB kufuneka igqitywe kwindawo ecocekileyo, i-automated ngokupheleleyo, kwaye. inkqubo elawulwa ngokwamanani.Inkqubo ye-MicroLED yexesha elizayo ayinalo kuphela zonke iimpawu ze-COB, kodwa iphinda iqulunqe inani elikhulu lemisebenzi yokudlulisa izixhobo ze-elektroniki "ezincinci".Ubunzima buphuculwa ngakumbi, kubandakanya amava okwenziwa kweshishini le-semiconductor.
Okwangoku, inani elikhulu letekhnoloji yokudlulisela i-MicroLED imele ingqwalasela kunye nophando kunye nophuhliso lwee-giants zamazwe ngamazwe ezifana ne-Apple, i-Sony, i-AUO kunye ne-Samsung.I-Apple inomboniso wesampulu yeemveliso ezinxitywayo, kwaye u-Sony uzuze imveliso eninzi ye-P1.2 pitch splicing LED screens ezinkulu.Injongo yenkampani yaseTaiwan kukukhuthaza ukuvuthwa kweemali ezinkulu zetekhnoloji yokudlulisa kwaye ube ngumntu okhuphisana nemveliso ye-OLED yokubonisa.
Kolu phuhliso lwemveliso lwezikrini ze-LED, umkhwa wokukhula kobunzima benkqubo uneengenelo zayo: umzekelo, ukonyusa umda weshishini, ukuthintela abakhuphisana namaxabiso angenantsingiselo, ukwandisa ukugxila kwishishini, kunye nokwenza iinkampani ezingundoqo "zikhuphisane".Iingenelo “zomeleza kakhulu kwaye zidale iimveliso ezingcono.Nangona kunjalo, olu hlobo lophuculo lwemizi-mveliso lukwanazo nezingeloncedo zalo.Oko kukuthi, umda wezizukulwana ezitsha zokuphucula iteknoloji, umda wenkxaso-mali, umqobo wophando kunye nophuhliso lwamakhono aphezulu, umjikelo wokwenza iimfuno ezithandwayo zide, kwaye ingozi yotyalo-mali nayo yanda kakhulu.Olu tshintsho lwamva luya kuba luncedo ngakumbi kulawulo lwezigebenga zamazwe ngamazwe kunokuphuhliswa kweenkampani zalapha ekhaya.
Nokuba yeyiphi i-pixel encinci yokugqibela yemveliso ye-LED enokubonakala ngathi, intuthuko entsha yetekhnoloji ihlala ikufanele ukulinda.Kukho iteknoloji eninzi enokuthi ifakwe kwi-teknoloji yobuncwane beshishini le-LED: kungekhona kuphela i-COB kodwa kunye ne-flip-chip technology;hayi kuphela iiMicroLED ezinokuthi zibe ziikristale ze-QLED okanye ezinye izinto.
Ngamafutshane, i-pixel encinci ye-LED yesikrini esikhulu somzi-mveliso lishishini eliqhubeka nokusungula kunye nokuqhubela phambili itekhnoloji.
Ixesha lokuposa: Jun-08-2021