A cikin shekaru uku da suka gabata, samarwa da tallace-tallace na ƙananan pixel farar LED manyan fuska sun kiyaye haɓakar fili na shekara-shekara na sama da 80%.Wannan matakin girma ba wai kawai yana cikin manyan fasahohin fasaha a masana'antar allo mai girma a yau ba, har ma a cikin babban haɓakar masana'antar allo.Haɓakawa cikin sauri na kasuwa yana nuna babban mahimmancin fasahar ƙaramin pixel pitch LED fasaha.
COB: Haɓakar Samfuran "Ƙarni na Biyu".
kananan pixel pitch LED fuska ta amfani da COB encapsulation fasahar ake kira "na biyu tsara" kananan pixel pitch LED nuni.Tun shekarar da ta gabata, irin wannan samfurin ya nuna haɓakar haɓakar kasuwa mai sauri kuma ya zama taswirar "mafi kyawun zaɓi" don wasu samfuran da ke mai da hankali kan manyan umarni da cibiyoyin aikawa.
SMD, COB zuwa MicroLED, Yanayin gaba don Manyan Fitilar Fitilar LED
COB gajarta ce ta Turanci ChipsonBoard.Fasaha ta farko ta samo asali ne a cikin 1960s.Yana da "tsarin lantarki" wanda ke nufin sauƙaƙe tsarin kunshin na kayan aikin lantarki masu kyau da kuma inganta kwanciyar hankali na samfurin ƙarshe.A magana kawai, tsarin kunshin COB shine cewa ainihin, guntu ko kayan lantarki ana siyar da shi kai tsaye akan allon kewayawa kuma an rufe shi da resin na musamman.
A cikin aikace-aikacen LED, ana amfani da kunshin COB a cikin tsarin hasken wutar lantarki mai ƙarfi da ƙaramin nunin firikwensin firikwensin LED.Tsohon yayi la'akari da fa'idodin sanyaya da fasahar COB ta kawo, yayin da ƙarshen ba wai kawai yana yin cikakken amfani da fa'idodin kwanciyar hankali na COB a cikin sanyaya samfurin ba, amma kuma yana samun fifiko a cikin jerin "tasirin ayyuka".
Amfanin COB encapsulation a kan kananan pixel pitch LED fuska hada da: 1. Samar da mafi kyau sanyaya dandamali.Saboda kunshin COB wani nau'i ne na kristal kai tsaye a kusanci tare da hukumar PCB, zai iya yin cikakken amfani da "yankin da ake amfani da shi" don cimma nasarar tafiyar da zafi da kuma zubar da zafi.Matsayin zubar da zafi shine ainihin abin da ke ƙayyade kwanciyar hankali, ƙimar lahani da kuma rayuwar sabis na ƙananan pixel farar allon LED.Mafi kyawun tsarin watsar da zafi a zahiri yana nufin mafi kyawun kwanciyar hankali gabaɗaya.
2. Kunshin COB wani tsari ne na gaske wanda aka rufe.Ciki har da allon da'ira na PCB, barbashi kristal, saida ƙafafu da jagora, da sauransu duk an rufe su sosai.Fa'idodin tsarin da aka hatimce a bayyane suke - alal misali, danshi, dunƙulewa, lalacewar gurɓatawa, da sauƙin tsaftace na'urar.
3. Za a iya tsara kunshin COB tare da ƙarin siffofi na "nuni na gani".Misali, tsarin kunshin sa, samuwar yankin amorphous, ana iya rufe shi da baƙar fata mai ɗaukar haske.Wannan yana sa samfurin kunshin COB ya fi kyau da bambanci.Ga wani misali, fakitin COB na iya yin sabbin gyare-gyare akan ƙirar gani sama da kristal don gane haɓakar ɓarna na pixels da haɓaka rashin lahani na girman ɓangarorin kaifi da haske mai ban sha'awa na ƙaramin pixel farar LED fuska.
4. COB encapsulation crystal soldering baya amfani da surface Dutsen SMT reflow soldering tsari.Madadin haka, yana iya amfani da “ƙananan tsarin siyar da zafin jiki” gami da walƙiyar zafin zafi, walƙiya na ultrasonic, da haɗin waya na gwal.Wannan yana sa ƙananan ɓangarorin kristal LED masu rauni ba su ƙarƙashin yanayin zafi sama da digiri 240.Tsarin zafin jiki shine maɓalli na ƙananan rata LED matattu da fitilun matattu, musamman matattun fitilu.Lokacin da tsarin haɗe-haɗe da mutu ya nuna matattun fitilu kuma yana buƙatar gyara, "sakamakon babban zafin jiki na sake kwararan wuta" shima zai faru.Tsarin COB yana kawar da wannan gaba ɗaya.Wannan kuma shine mabuɗin zuwa ƙimar tabo mara kyau na tsarin COB kasancewar kashi ɗaya cikin goma na samfuran saman dutsen.
Tabbas, tsarin COB shima yana da “rauni.”Na farko shine batun farashi.Tsarin COB yana kashe fiye da tsarin hawan saman.Wannan saboda tsarin COB shine ainihin matakin rufewa, kuma dutsen saman shine haɗin kai.Kafin aiwatar da tsarin hawan farfajiyar, ƙwayoyin kristal na LED sun riga sun yi aikin encapsulation.Wannan bambance-bambancen ya haifar da COB don samun manyan hanyoyin saka hannun jari, ƙimar farashi, da ƙofofin fasaha daga hangen kasuwancin allo na LED.Duk da haka, idan an kwatanta "kunshin fitilu da haɗin kai" na tsarin hawan saman da aka kwatanta da tsarin COB, canjin farashin yana da karɓa sosai, kuma akwai halin da ake ciki don ragewa tare da kwanciyar hankali na tsari da ci gaban sikelin aikace-aikacen.
Na biyu, daidaiton gani na samfuran rufewar COB yana buƙatar gyare-gyaren fasaha na ƙarshen.Ciki har da daidaiton launin toka na manne mai ɗaukar hoto da kanta da daidaiton matakin haske na kristal mai fitar da haske, yana gwada ingancin sarrafa dukkan sarkar masana'antu da matakin daidaitawa na gaba.Duk da haka, wannan rashin amfani ya fi batun "kwarewa mai laushi."Ta hanyar jerin ci gaban fasaha na fasaha, yawancin kamfanoni a cikin masana'antu sun ƙware mahimman fasaha don kiyaye daidaiton gani na manyan ayyuka.
Na uku, COB encapsulation a kan samfurori tare da babban tazarar pixel yana ƙaruwa sosai "rikitaccen samarwa" na samfurin.A wasu kalmomi, fasahar COB ba ta da kyau, ba ta shafi samfurori tare da tazarar P1.8 ba.Domin a nisa mafi girma, COB zai kawo ƙarin ƙimar farashi mai mahimmanci.- Wannan shi ne kamar yadda tsarin hawan dutse ba zai iya maye gurbin cikakken nuni na LED ba, saboda a cikin p5 ko fiye da samfurori, ƙayyadaddun tsari na shimfidar wuri yana haifar da ƙarin farashi.Hakanan za'a yi amfani da tsarin COB na gaba a cikin P1.2 da samfuran farar ƙasa.
Yana da daidai saboda abubuwan da ke sama da fa'idodi da rashin amfani na COB encapsulation kananan pixel pitch LED nuni cewa: 1.COB ba shine farkon zaɓin hanya don ƙaramin pixel farar nunin LED ba.Saboda ƙaramin pixel pitch LED yana ci gaba a hankali daga babban samfurin, babu makawa zai gaji fasahar balagagge da ƙarfin samar da tsarin hawan sama.Wannan kuma ya haifar da ƙirar cewa manyan LEDs masu ɗorewa na yau da kullun sun mamaye mafi yawan kasuwa don ƙaramin pixel farar LED fuska.
2. COB shine "Tsarin da ba zai yiwu ba" don ƙananan pixel pitch LED nuni don ƙarin canzawa zuwa ƙananan filayen da kuma aikace-aikacen cikin gida mafi girma.Domin, a mafi girman girman pixels, mataccen-haske na tsarin dutsen saman ya zama "matsalar lahani samfurin gama."Fasahar COB na iya inganta haɓakar mataccen fitilar ƙaramar nunin pixel pitch LED nuni.A lokaci guda, a cikin umarni mafi girma da kasuwar cibiyar aikawa, ainihin tasirin nunin ba shine "haske" ba amma "ta'aziyya da aminci" wanda ya mamaye.Wannan shine ainihin fa'idar fasahar COB.
Sabili da haka, tun daga 2016, haɓaka haɓakar haɓakawar COB encapsulation ƙananan pixel pitch LED nuni za a iya la'akari da shi azaman haɗin "ƙananan farar" da "kasuwa mafi girma".Ayyukan kasuwa na wannan doka shine kamfanonin allon LED waɗanda ba su shiga cikin kasuwannin umarni da cibiyoyin aikawa ba su da sha'awar fasahar COB;Kamfanonin allo na LED waɗanda suka fi mayar da hankali kan kasuwar umarni da cibiyoyin aika suna da sha'awar haɓaka fasahar COB.
Fasaha ba ta da iyaka, babban allo MicroLED shima yana kan hanya
Canjin fasaha na samfuran nunin LED ya sami matakai uku: in-line, surface-mount, COB, da juyin juya hali guda biyu.Daga in-line, surface-Mount, zuwa COB yana nufin ƙarami farar da mafi girma ƙuduri.Wannan tsarin juyin halitta shine ci gaban nunin LED, kuma ya haɓaka kasuwannin aikace-aikace masu tsayi da yawa.To shin irin wannan juyin halittar fasaha zai ci gaba a nan gaba?Amsar ita ce eh.
LED allo daga kan layi zuwa saman canje-canje, yafi hadedde tsari da fitila beads kunshin bayani dalla-dalla canje-canje.Amfanin wannan canjin galibi shine mafi girman damar haɗin kai.LED allon a cikin karamin pixel farar lokaci, daga saman-Mount tsari zuwa COB tsarin canje-canje, ban da hadewa tsari da kuma kunshin canje-canje, COB hadewa da encapsulation tsarin hadewa ne aiwatar da dukan masana'antu sarkar sake-segmentation.A lokaci guda kuma, tsarin COB ba wai kawai yana kawo ƙaramin ikon sarrafa farar ba, amma kuma yana kawo mafi kyawun gani na gani da ƙwarewar dogaro.
A halin yanzu, fasahar MicroLED ta zama wani abin da ake mayar da hankali kan binciken manyan allo na LED.Idan aka kwatanta da ƙarni na baya COB aiwatar kananan pixel pitch LEDs, da MicroLED ra'ayi ba canji a hadewa ko encapsulation fasahar, amma ya jaddada "miniaturization" na fitila bead lu'ulu'u.
A cikin ultra-high pixel density kananan pixel farar LED allon kayayyakin, akwai biyu musamman fasaha bukatun: Na farko, high pixel yawa, kanta na bukatar wani karami fitila size.Fasahar COB tana ɗaukar barbashi kristal kai tsaye.Idan aka kwatanta da fasahar hawan sama, ana siyar da samfuran bead ɗin fitilar da aka riga aka rufe su.A zahiri, suna da fa'idar ma'auni na geometric.Wannan shine daya daga cikin dalilan da yasa COB ya fi dacewa da ƙananan samfuran allo na LED.Na biyu, mafi girman girman pixel kuma yana nufin cewa an rage matakin haske da ake buƙata na kowane pixel.Ultra-small pixel pitch LED fuska, akasari amfani da su na cikin gida da kuma kusa da nisa kallo, suna da nasu bukatun don haske, wanda ya ragu daga dubban lumens a waje fuska zuwa kasa da dubu daya, ko ma daruruwan lumens.Bugu da ƙari, haɓakar adadin pixels a kowane yanki na yanki, neman haske mai haske na kristal guda ɗaya zai faɗi.
Yin amfani da tsarin micro-crystal na MicroLED, wato don saduwa da ƙaramin lissafi (a cikin aikace-aikacen al'ada, girman kristal na MicroLED na iya zama ɗaya zuwa dubu goma na al'adar fitilar fitilun fitilun fitilun fitilun fitilun yanzu), Hakanan Haɗu da halaye na ƙasa. Barbashi kristal mai haske tare da mafi girman buƙatun girman pixel.A lokaci guda, farashin nunin LED ya ƙunshi sassa biyu: tsari da substrate.Karami microcrystalline LED nuni yana nufin ƙarancin amfani da kayan abu.Ko kuma, lokacin da tsarin pixel na ƙaramin allo mai jagorar pixel zai iya gamsuwa lokaci guda ta hanyar manyan girma da ƙananan lu'ulu'u na LED, ɗaukar ƙarshen yana nufin ƙananan farashi.
A taƙaice, fa'idodin kai tsaye na MicroLEDs don ƙaramin pixel pitch LED manyan fuska sun haɗa da ƙarancin farashi, mafi ƙarancin haske, babban aikin launin toka, da ƙarami na lissafi.
A lokaci guda, MicroLEDs suna da wasu ƙarin fa'idodi don ƙananan pixel pitch LED fuska: 1. Ƙananan ƙwayar kristal yana nufin cewa yanki mai nunawa na kayan crystalline ya ragu sosai.Irin wannan ƙaramin pixel pitch LED allon zai iya amfani da kayan shafa haske da dabaru a kan wani yanki mafi girma don haɓaka tasirin launin toka na baki da duhu na allon LED.2. Ƙananan ƙwayoyin kristal suna barin ƙarin ɗaki don jikin allo na LED.Ana iya shirya waɗannan wurare na tsarin tare da sauran abubuwan firikwensin, tsarin gani, tsarin watsar da zafi, da makamantansu.3. Ƙananan pixel pitch LED nuni na fasaha na MicroLED ya gaji tsarin rufewar COB gaba ɗaya kuma yana da duk fa'idodin samfuran fasahar COB.
Tabbas, babu cikakkiyar fasaha.MicroLED ba banda.Idan aka kwatanta da na al'ada kananan pixel farar nuni LED nuni da na kowa COB-encapsulation LED nuni, babban hasara na MicroLED ne "mafi cikakken encapsulation tsari."Masana'antar ta kira wannan "yawan adadin fasahar canja wuri."Wato, miliyoyin lu'ulu'u na LED akan wafer, da kuma aikin kristal guda ɗaya bayan rarrabuwa, ba za a iya kammala su ta hanyar injiniya mai sauƙi ba, amma suna buƙatar kayan aiki na musamman da matakai.
Wannan na ƙarshe kuma shine "babu wani ƙulli" a cikin masana'antar MicroLED na yanzu.Koyaya, sabanin ultra-fine, ultra-high-density MicroLED nuni da aka yi amfani da su a cikin VR ko allon wayar hannu, ana amfani da MicroLEDs don manyan nunin LED masu girma ba tare da iyakacin “yawan pixel” ba.Alal misali, sararin pixel na P1.2 ko P0.5 matakin shine samfurin da aka yi niyya wanda ya fi sauƙi don "cimma" don fasahar "giant transfer".
Dangane da matsalar babbar adadin fasahar canja wuri, ƙungiyar masana'antar Taiwan ta ƙirƙira hanyar sasantawa, wato ƙarni na 2.5 na ƙaramin pixel farar LED fuska: MiniLED.MiniLED crystal barbashi girma fiye da na gargajiya MicroLED, amma har yanzu kawai daya bisa goma na al'ada kananan pixel farar LED lu'ulu'u na allo, ko 'yan dubun na.Tare da wannan samfurin MINILED da aka rage na fasaha, Innotec ya yi imanin cewa zai iya cimma "balaga" da kuma samar da taro a cikin shekaru 1-2.
Gabaɗaya, ana amfani da fasahar MicroLED a cikin ƙaramin pixel pitch LED da babban kasuwar allo, wanda zai iya ƙirƙirar “cikakkiyar ƙwarewa” na aikin nuni, bambanci, ma'aunin launi, da matakan ceton kuzari waɗanda suka wuce samfuran da ake dasu.Koyaya, daga saman-hawan zuwa COB zuwa MicroLED, za a haɓaka masana'antar ƙaramin pixel pitch LED daga tsara zuwa tsara, kuma zai buƙaci ci gaba da ƙira a cikin fasahar aiwatarwa.
Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararru na LED
Samfuran allon LED daga layi, saman zuwa COB, ci gaba da haɓakawa a matakin haɗin kai, makomar MicroLED manyan samfuran allo, fasahar “giant transfer” ta fi wahala.
Idan tsarin layi na fasaha ne na asali wanda za'a iya kammala shi da hannu, to, tsarin hawan dutse shine tsari wanda dole ne a samar da shi ta hanyar injiniya, kuma fasahar COB yana buƙatar kammalawa a cikin yanayi mai tsabta, cikakke ta atomatik, kuma tsarin sarrafawa na lamba.Tsarin MicroLED na gaba ba wai kawai yana da duk fasalulluka na COB ba, amma kuma yana tsara babban adadin ayyukan canja wurin na'urar lantarki "ƙananan".An ƙara haɓaka wahalhalun, wanda ya haɗa da ƙwarewar masana'antar semiconductor mai rikitarwa.
A halin yanzu, babban adadin fasahar canja wurin da MicroLED ke wakilta yana wakiltar hankali da bincike da ci gaban manyan manyan duniya kamar Apple, Sony, AUO da Samsung.Apple yana da wani samfurin nuni na wearable nuni kayayyakin, da kuma Sony ya samu taro samar da P1.2 farar splicing LED manyan fuska.Manufar kamfanin na Taiwan shine don inganta balaga na fasahar canja wuri mai yawa kuma ya zama mai fafatawa da samfuran nunin OLED.
A cikin wannan ƙarni na ci gaban LED fuska, da Trend na progressively kara aiwatar wahala yana da abũbuwan amfãni: misali, kara masana'antu kofa, hana mafi m farashin fafatawa a gasa, kara masana'antu maida hankali, da kuma yin masana'antu core kamfanoni "gasa".Abũbuwan amfãni "yana ƙarfafawa da ƙirƙirar samfurori mafi kyau.Koyaya, irin wannan haɓaka masana'antu shima yana da rashin amfani.Wato bakin kofa na sabbin al'ummomi na haɓaka fasaha, kofa don samar da kudade, kofa don bincike da ƙarfin haɓaka sun fi girma, zagayowar samar da buƙatun faɗaɗa ya fi tsayi, haɗarin saka hannun jari kuma yana ƙaruwa sosai.Canje-canjen na baya-bayan nan za su fi dacewa ga ikon mallakar manyan kamfanoni na duniya fiye da haɓaka kamfanoni masu ƙima na cikin gida.
Duk abin da samfurin LED ɗin ƙaramin ƙaramin pixel na ƙarshe zai iya yi kama, sabbin ci gaban fasaha koyaushe suna cancanci jira.Akwai fasaha da yawa da za a iya amfani da su a cikin kayan fasahar fasaha na masana'antar LED: ba kawai COB ba har ma da fasahar juzu'i;ba kawai MicroLEDs na iya zama lu'ulu'u na QLED ko wasu kayan ba.
A takaice, ƙananan pixel pitch LED manyan masana'antar allo masana'antu ce da ke ci gaba da haɓakawa da haɓaka fasaha.
Lokacin aikawa: Juni-08-2021