M'mbuyomu, titasamala za Micro LED, sitinathe kupewa mutu wovuta wa "kusamutsa anthu ambiri".Lero, ndi bwino kudumpha mu unyolo wa tchipisi ndi kukambirana nkhaniyi pa njira ya LED miniaturization.Tiyeni tiwone kusintha kosinthika kuchokeraMini LEDku Micro LED, mawonekedwe onyamula, zida zowunikira ndi driver IC.Ndi ziti zomwe zidzapite patsogolo?Ndi ziti zomwe zidzazimiririke m'maso mwathu?
Kuchokera pamawu ang'onoang'ono kupita ku Micro LED, ndikusintha kotani komwe kudzachitika m'mapangidwe azinthu zopakidwa?
Malinga ndi ma CD, zowonetsera za LED zitha kugawidwa m'magawo atatu: phula laling'ono, Mini ndi Micro.Zosiyanasiyana zopakapaka zimakhala ndi mitundu yosiyanasiyana yazogulitsaflexible LED chiwonetserozipangizo.1. Single-pixel 3-in-1 chida cholekanitsa SMD: 1010 ndi woimira wamba;2. Chida cholekanitsa phukusi lamitundu yosiyanasiyana AIP: Anayi mwa amodzi ndi oyimira;3. Pamwamba gluing GOB: SMD yachibadwa kutentha madzi gluing ndi woimira mmene;4. Integrated ma CD COB: yachibadwa kutentha madzi guluu ndi woimira mmene.
Munthawi ya Mini LED, pali mitundu iwiri ikuluikulu yamitundu yazogulitsa: zida zonse-mu-modzi komanso zoyika zophatikizika.Woyimilira wa SMT ndi zida zonse-mu-zimodzi komanso zosiyana.Woyimira wokhazikika wa kuphatikizika kwa ma module amaphatikizidwira.Ukadaulo wophatikizika wophatikizira udakali ndi zovuta monga mtundu wa inki ndi kusasinthika kwamtundu, zokolola, ndi mtengo.Chipangizo cholekanitsa cha 0505 ndi malire a SMD.Pakalipano, imayang'anizana ndi kudalirika, kudalirika kwa SMT, kulimbikitsa ndi zina.Munthawi ya Mini LED, mwina idataya ukadaulo wapamwamba.Munthawi ya Micro LED, palibe kukayika kuti izikhala yophatikizika.Koma vuto lalikulu ndi kusamutsa chip.
Ponena za kulosera zam'tsogolo zamakono zowonetsera ma LED, pali mfundo zinayi zazikulu:1. Ukadaulo wapackaging wasintha kuchokera pakupanga ukadaulo wa point mpaka paukadaulo wapamtunda, kuyang'anizana ndi miniaturization ya LED.Iyi idzakhala njira yochepetsera njira zopangira komanso kuchepetsa ndalama zadongosolo.2. Kuchokera m'modzi mwa m'modzi, anayi mwa m'modzi kupita ku N m'modzi.Pakuyika fomu ndi chosavuta.3. Kuchokera pakuwona kukula kwa chip ndi kukwera kwa madontho, palibe kukayikira kuchokera ku Mini LED kupita ku LED yaying'ono.4. Kuchokera pakuwona msika wa terminal, chiwonetsero chamtsogolo cha LED chidzasuntha kuchoka ku engineering ndi msika wobwereketsa kupita kumsika wowonetsa zamalonda.Kusintha kuchokera pachiwonetsero "screen" kupita ku "chipangizo".
Munthawi ya Mini LED ndi Micro LED, nanga bwanji phosphors?
Mawonekedwe a Mini LED / Micro LED full-chip nthawi zambiri amakondedwa ndiLED chiwonetsero chamakampani, koma mavuto a kusamutsa kwakukulu pakupanga, kuwongolera chip mitundu yambiri ndi kuchepetsedwa kosiyana ndizodziwikanso kwambiri.Mavuto omwe ali pamwambawa asanayambe kuthetsedwa, kupanga ma phosphors atsopano okondwa ndi buluu Mini LED / Micro LED kuti apewe kusakwanira kwa teknoloji yomwe ilipo ndikupereka kusewera kwathunthu ku ubwino wake waumisiri ndi njira yamakono yomwe ikuganiziridwa ndi makampani.Komabe, m'pofunika kuthetsa vuto la kukula kwa tinthu tating'ono ta phosphor ndi kuwonongeka kwachangu chifukwa cha kukula kwa tinthu tating'ono.
Pakalipano, Mini LED ikadali yoyenera ku makampani a LCD monga gwero la backlight, koma ilibe phindu lamtengo wapatali.Masiku ano, kuchuluka kwa mafakitale amadzimadzi amadzimadzi owonetsera mtundu wa gamut kutengera magwero atsopano a kuwala kwa LED kwadutsa 90% NTSC.Mafuko osokonekera omwe adachita kafukufuku apeza kupanga kochuluka komanso kugwiritsa ntchito kwambiri ma fluoride opapatiza.Pakugonjetsanso kutulutsa kwatsopano kwa bandi yopapatiza ya phosphors yofiira ndi yobiriwira ndi nyali zakumbuyo za LED.Izi zimathandizira kukulitsa mtundu wa gamut wamadzimadzi amadzimadzi mpaka 110% NTSC, womwe ungafanane ndiukadaulo wa OLED/QLED.
Kuphatikiza apo, mwina zida zotulutsa madontho a quantum zitha kukhalanso ndi gawo.Koma zida za quantum dot luminescent "zimawoneka zokongola" ndipo zapatsidwa chiyembekezo chachikulu.Komabe, mavuto a kukhazikika, kuwala kowala, kuteteza chilengedwe ndi mtengo wapamwamba wa ntchito sizinathe bwino.Kuphatikiza apo, madontho a photoluminescent quantum ndi osinthika.Kugwiritsa ntchito kwenikweni kwa madontho a quantum kuli mu QLED.Pakadali pano, maiko ena osowa adayikanso mapangidwe a zida zowunikira za QLED.
Chifukwa chiyani njira yoyendetsera yowonetsera ya LED siigwira ntchito ikafika nthawi ya Mini ndi Micro LED?
Zowonetsera za LED zikalowa Micro LED ndi Mini LED, njira zachikhalidwe zoyendetsera ma LED sizingagwiritsidwe ntchito.Chifukwa chachikulu ndi malo omwe alipo.Nthawi zambiri, chikhalidweChiwonetsero cha LEDdalaivala IC amatha kuyendetsa mpaka ma pixel 600, ndipo chifukwa mawonedwe a LED nthawi zambiri amagwiritsidwa ntchito pamalo opitilira mainchesi 120, kukula kwa IC sikungabweretse mavuto.Komabe, ngati ma pixel omwewo akugwirizana ndi kukula kwa kope kapena foni yam'manja, ma IC a kukula ndi nambala yofanana sangagwirizane ndi chipangizo cha kope kapena foni yam'manja, choncho Micro LED ndi Mini LED zimafuna njira zosiyana zoyendetsera galimoto.
Nthawi zambiri, ma drive modes owonetsera amatha kugawidwa m'mitundu iwiri.Mtundu woyamba ndi Passive Matrix.Nthawi zambiri kungokhala chete kumatanthawuza kuti kokha pamene ma pixel ojambulidwa ayang'aniridwa ndi zamakono kapena magetsi m'pamene kuwala kumatulutsa.Nthawi yotsalayo yomwe sinasinthidwe imakhala yosagwira ntchito.Popeza njirayi imangogwira ntchito pamzati umodzi panthawi ya kutembenuka kwa chimango chilichonse, zimakhala zovuta kwambiri kukwaniritsa zofunikira zapamwamba komanso kuwala kwakukulu pagawo limodzi.Ndipo bola ngati pali kagawo kakang'ono mu imodzi mwa ma pixel, ndikosavuta kuyambitsa ma signal crosstalk.
Kuphatikiza apo, palinso mapangidwe omwe amagwiritsa ntchito transistor yowonjezera ngati chosinthira kuti apewe kusokoneza kwa ma sign chifukwa cha zovuta zamagulu.Mulimonse momwe zingakhalire, chochitacho sichimangokhala.Pakalipano, njira yoyendetsera galimotoyi imagwiritsidwa ntchito kwambiri pamapulogalamu otsika kwambiri chifukwa cha mapangidwe ake osavuta komanso otsika mtengo.Monga masewera kuvala zibangili.Ngati pakufunika gulu lapamwamba, ma modules angapo otsika angagwiritsidwe ntchito pophatikizana, monga chophimba chachikulu chowonetsera.
Mtundu wina wamagalimoto oyendetsa ndi Active Matrix.Monga momwe dzinalo likusonyezera, Active Matrix imatha kusunga voteji yamakono kapena yamakono kudzera pa chipangizo chosungira cha pixel chomwe chili mkati mwa chimango.Chifukwa capacitor imagwiritsidwa ntchito posungira, palinso zovuta za kutayikira ndi ma sign crosstalk, koma ndizocheperako kuposa kuyendetsa mosasamala.Njira yoyendetsera analogi nthawi zambiri imakhalabe ndi vuto lofanana lomwe limayambitsidwa ndi njira yopyapyala yamakanema a transistor ndi chipangizo chotulutsa kuwala chokhacho chomwe chimakhala chachikulu.Chifukwa chake, pali zovuta zomwe zikuchitika pano monga 7T1C kapena 5T2C kuti athetse vuto lofanana.
Pamene kukula kwa pixel kuli kochepa pamlingo wina ndipo zofunikira za chisankho ndizokwera kwambiri, njira yoyendetsera digito idzagwiritsidwa ntchito momwe zingathere kuti ikwaniritse vuto lofanana lomwe latchulidwa pamwambapa.Nthawi zambiri, pulse wide modulation (PWM) imagwiritsidwa ntchito pakusintha kwa imvi.kupanga mitundu yosiyanasiyana ya imvi.
Njira ya PWM imagwiritsa ntchito magawo a pulse omwe amagawidwa pakapita nthawi kuti apange kusintha kosiyana kwa imvi posintha nthawi ya kuyatsa ndi kuyimitsa.Njira imeneyi imatha kutchedwanso duty cycle modulation.Popeza ma LED ndi zigawo zomwe zimayendetsedwa pakali pano, popanga ma Micro-LED mawonedwe ang'onoang'ono, njira yopangira gwero lokhazikika lokhazikika nthawi zambiri imagwiritsidwa ntchito kuyendetsa pixel iliyonse yodziyimira payokha kuti ikwaniritse zofunikira za kuwala kofanana ndi kutalika kokhazikika., Komanso, ngati kusamutsa paokha mitundu yosiyanasiyana ya Micro-LED luso ntchito, m'pofunika kuganizira voteji opaleshoni osiyana RGB, choncho ayeneranso kupanga payokha voteji kulamulira magetsi dera mkati mapikiselo.
Nthawi yotumiza: Oct-10-2022