Verenga nezvechizvarwa chinotevera chetekinoroji yekuratidzira - Micro-LED
Munguva ino, tekinoroji yekuratidza zvinhu yave nzira huru yekuchinjana ruzivo, ichifukidza mafoni madiki, zvishandiso zveVR/AR, zvigadzirwa zvinopfekwa, zviratidziro zvemumotokari, mapiritsi/makombiyuta uye projection yelaser.
Micro LEDtekinoroji inozivikanwa se "tekinoroji yekuratidzira yechizvarwa chinotevera", kukura kwayo nekukura kwayo kuri kuwedzera, uye mikana yemusika iri kuwedzera.
Kurongeka kwemakambani makuru emuno
Tianma Microelectronics yagara ichiisa mari mu Micro-LED tekinoroji kubvira muna 2017, ichinyanya kutarisa paPPI yakakwira, kupenya kwakanyanya uye yakakwirira. kuratidzwa kwekujekaKambani iyi yatanga zvigadzirwa zvakawanda zveMicro-LED zvinotungamira muindasitiri.
Muna 2022, Tianma yakaisa mari mukuvaka mutsetse wekugadzira weMicro-LED une maitiro akazara kubva pakutamiswa kukuru kuenda kumodule yekuratidza, ichishandisa nzira yelaser nemidziyo yakagadzirwa, kana pasina tekinoroji iripo pasi rose, kuti iite kugadzirwa otomatiki zvizere. Mutsetse uyu wakabudirira kuburitsa kugadzirwa kwawo kwekutanga musi wa26 Chikumi 2024, umo michina yekugadzira nezvinhu zvinopfuura makumi matatu zvakagadzirwa pamwe chete nemakambani ekutengesa.
Musi wa31 Ndira, BOE Huacan Optoelectronics Zhuhai Micro LED Basa rekugadzira mawafer nekuyedza kurongedza rakavharirwa, purojekiti iyi inofukidza nzvimbo inosvika maeka mazana maviri negumi nemanomwe, mari inosvika mabhiriyoni maviri eyuan, ichabatidza chigadzirwa chekutanga munaGunyana 2024, chakarongwa kugadzirwa muna Zvita gore rino, ramangwana richawana goho regore re58,800.Micro LEDmawafer.
Zvichienderana nedata, saizi yemusika yemachipisi eMicro LED muna 2023 inosvika mamiriyoni makumi matatu nemaviri emadhora ekuAmerica, uye zvinotarisirwa kuti saizi yemusika wepasi rose weMicro LED muna 2025 ichapfuura mabhiriyoni matatu nehafu emadhora ekuAmerica panosvika gore ra2025, uye inotarisirwa kuputsa chiratidzo chemadhora ekuAmerica mabhiriyoni gumi muna 2027.
Micro-LED- chizvarwa chinotevera chetekinoroji yekuratidza zvinhu
Micro-LED, inozivikanwawo semLED kana μLED, chishandiso chinoumbwa nemayuniti emagetsi echiedza che micron-scale. Kuburikidza netekinoroji yekufambisa mass, mayuniti aya anogona kutamisirwa kune substrate yakaoma kana inochinjika uye ozoiswa muzvikamu zvinodzivirira uye maelectrode.
Nheyo yekuratidza ma micro-LED
Chinhu chikuru chetekinoroji yeMicroLED chiri muchimiro chayo chepixel, pixel yega yega inoumbwa nema pixel emhando ye red, green, uye blue. Sub-pixel yega yega inogona kudzorwa yakazvimirira kuti igadzirise kupenya, ruvara uye kusiyana kwechiratidziro. MuMicroLED display system, chiedza chinoburitswa ne LED yega yega chinogadziriswa ne lens negirazi, uye pakupedzisira chinoumba ma pixels pachiratidziro che display, uye chinogadziriswa ne color filter kuratidza mashandiro eruvara anodiwa. Chakanakira tekinoroji iyi kugona kwayo kupa kupenya kwakanyanya, kusiyana uye kururama kweruvara.
Uyezve, Micro LEDarray yakabatana nematanda akanaka neasina kunaka eMicro LED yega yega nemagetsi egrid akanaka neasina kunaka akarongwa zvakanaka. Kubatana uku kunoita kuti Micro LED ibatidzwe nekuskena nekushandisa mitsetse yeelectrode nenzira yakatarwa, zvichiita kuti mufananidzo uratidzwe.
Maitiro eMicro-LED
Micro-LED chimiro che LED chinogadziriswa nefirimu diki, miniaturization uye array, uye saizi yacho inosvika 1-100μm. Iyi nzira inosanganisira kutamisa ma micro-LED mumabatch kuma circuit board, ayo anogona kunge akaomarara kana akapfava, akajeka kana asina kujeka. Tevere, nzira yekuisa physical inoshandiswa kuwedzera layer yekudzivirira uye upper electrode, uye pakupedzisira upper substrate inorongedzwa kuti igadzire Micro-LED display.
Magirazi e-micro-LED akasiyana zvakanyanya neakajairika e LED pakureva nezve grain, package, integration process, backplane uye drive.
Maitiro ekugadzira maMicro-LED anosanganisira:
Chekutanga, kristaro ye LED ine firimu rakatetepa, miniaturization uye array kuburikidza ne microfabrication process technology.
Parizvino, kushandiswa kwema semiconductor nemachipisi mukuita zvinhu zvishoma kuri kusvika pamugumo, asi maitiro eMicro-LED achiri nenzvimbo yakakura yekukura. Pane nzira nhatu huru dzinoshandiswa: welding yemazinga echip, welding yemazinga e epitaxial uye transfer yefirimu.
Chip bonding (Chip level bonding)
Kubatanidza machipisi e LED nepakati pechip kunosanganisira kupatsanura machipisi e LED kuita machipisi e Micro LED e micron-scale uye kuabatanidza nebhodhi rekuratidza uchishandisa tekinoroji ye SMT kana COB. Nzira iyi inogona kugadzirisa nzvimbo yekuchinjisa, asi haigone kutamiswa mumabatch.
SMT inoshandiswa zvakanyanya mumunda wekubatanidza zvinhu zvemagetsi, nekuisa zvikamu zvechip paPCB kana dzimwe nzvimbo dzepasi, uchishandisa nzira dzekubatanidza simbi kana kudip dzakadai sekubatanidza simbi. Matanho acho anosanganisira kuongorora zvinhu, kunamatira pachidzitiro, kurongedza, kuomesa, kusanganisa simbi, kuchenesa, plug-in, kusanganisa simbi nemafungu, kuchenesazve, kuongorora nekugadzirisa.
COB tekinoroji yekuratidza zvinhu zvidiki inosanganisa zvakananga mawafer e LED paPCB uye inoasanganisa kuita maCELL units. Kana tichienzanisa netekinoroji yeSMD, tekinoroji yekurongedza COB ine zvayakanakira zvayo zvakasiyana.
Kusunga wafer (epitaxial welding)
Kukwesha kweEpitaxial level inzira yekugadzira zvakananga micrometer level Micro-LED epitaxial thin film structure pa LED epitaxial thin film layer ne inductively coupled plasma ion etching (ICP) technology. Nzvimbo yakatarwa yechimiro ichi ndiyo nzvimbo inodiwa yema display pixels.
Zvadaro, wafer ye LED ine epitaxial layer ne substrate zvakabatana zvakananga ne drive circuit board, uye substrate inobviswa uchishandisa physical kana chemical mechanism, zvichisiya chimiro che 4 kusvika 5μm Micro-LED epitaxial film kuti igadzire display pixel pa drive circuit board. Chakanakira nzira iyi ndechekuti batch transfer inogona kuonekwa, asi chakashata ndechekuti transfer interval haigone kugadziriswa.
Kutamisirwa kwefirimu rakatetepa Kutamisirwa kwefirimu rakatetepa
Substrate ye LED inobviswa nenzira yepanyama kana yemakemikari, uchishandisa substrate yenguva pfupi kuti ibate layer yeMicro-LED film. Zvadaro, chimiro che micron chinoumbwa ne inductively coupled plasma etching. Imwe nzira ndeyekutanga wacheka wobva wabvisa substrate ye LED. Zvichienderana nezvinodiwa ne display point spacing ye drive circuit, Micro-LED film inotamiswa kuenda kudriver board muzvikamu ne selective transfer tool kuti ipedzise display point assembly. Maitiro aya anodhura zvishoma, haaganhurirwi nehukuru hwe display board, uye anogona kutamiswa pamwero mukuru.
Chechipiri, kutamiswa kwebatch kuenda kubhodhi redunhu - tekinoroji huru yekutamiswa
Chinhu chikuru chetekinoroji yeMicro-LED kubatanidzwa kwakasimba kwemwenje midiki kwazvo pachip, izvo zvinoda maitiro chaiwo - tekinoroji ye micro-transfer yakakura (inonziwo large transfer).
Nzira iyi inosanganisira kunyatsobatanidza mazana kusvika kuzviuru zvema LED grains ekutanga pabhodhi diki reTFT, izvo zvinoda kukurumidza kukundikana zvakanyanya. Kunyangwe paine matekinoroji akasiyana ari kuedza kuzadzisa chinangwa ichi, kutamisa mass transfer ichiri tekinoroji inofanirwa kugadzirwa nevanhu vakawanda.
Maitiro ekutamisa zvinhu zvakawanda anowira muzvikamu zvina: kubata nemazvo, kuzvigadzira wega, kusarudza kusunungura, uye kutamisa zvinhu.
Mukuda kuri kuwedzera kwemusika kwezviratidziro zvine mavara akakwirira uye zvine resolution yepamusoro, Micro-LED colorization yave chinhu chinonyanya kutsvagwa. Parizvino, nzira huru dzekushandisa dzinosanganisiraNzira yeRGB yemavara matatu e LED, nzira yepakati ye UV/ bhuruu ye LED inoburitsa chiedza uye nzira yekugadzira lenzi ye optical.
Sezvo musika weAR/VR uchiramba uchikura, pane kudiwa kuri kukura kwemapaneru anoshanda zvakanyanya ayo maLCD neOLED display echinyakare asingachakwanise kusangana nawo. Musika uri kuda matekinoroji matsva ekuratidza kuti uvandudze mashandiro uye usvike padanho rekuvandudza ramangwana. Tekinoroji yeMicro-LED semhinduro iri kubuda, hunhu hwayo hunoita kuti ive makwikwi akasimba ekuzadzisa zvinodiwa izvi.
