Kare, patakateerera kuMicro LED, hatina kukwanisa kunzvenga nyaya yakaoma ye "mass transfer".Nhasi, zviri nani kusvetuka kubva mumaketani emachipisi uye kukurukura nyaya iyi munzira ye LED miniaturization.Ngatitarisei kuchinja kwekugadzirisa kubvaMini LEDkune Micro LED, kurongedza fomu, luminescent zvinhu uye mutyairi IC.Ndedzipi dzichaenda kuruzhinji?Ndedzipi dzichapera mukuona kwedu?
Kubva padiki padiki kuenda kuMicro LED, ndedzipi shanduko dzichaitika muchimiro chezvigadzirwa zvakapetwa?
Kubva pamaonero ekurongedza, maratidziro e LED anogona kukamurwa kuita matatu eras: diki pitch, Mini uye Micro.Yakasiyana yekurongedza eras ine akasiyana zvigadzirwa mafomu eflexible LED kuratidzazvishandiso.1. Single-pixel 3-in-1 kupatsanurwa mudziyo SMD: 1010 mumiririri akajairika;2. Array type package separation device AIP: Ina mune imwe inomiririra mumiririri;3. Surface gluing GOB: SMD yakajairwa tembiricha yemvura inonamira mumiriri anomiririra;4. Integrated packaging COB: yakajairika tembiricha liquid glue mumiririri akajairika.
Muiyo Mini LED era, kune maviri makuru marudzi echigadzirwa mafomu: ese-mu-imwe discrete zvishandiso uye zvakabatanidzwa kurongedza.Iyo yakajairwa mumiriri weSMT ndeyese-mu-imwe uye yakaparadzana zvishandiso.Iyo yakajairwa inomiririra yemuviri module splicing yakasanganiswa kurongedza.Yakabatanidzwa yekurongedza tekinoroji ichine matambudziko senge inki ruvara uye kuenderana kwemavara, goho, uye mutengo.Iyo 0505 yekuparadzanisa mudziyo ndiyo muganho weSMD.Parizvino, inonyanya kutarisana nekuvimbika, kushanda zvakanaka kweSMT, kusimudzira uye zvimwe zvinhu.Muiyo Mini LED era, inogona kunge yakarasikirwa neiyo main tekinoroji.Munguva yeMicro LED, hapana mubvunzo kuti ichave yakabatanidzwa kurongedza.Asi chinotarisisa chedambudziko chiri pane chip transfer.
Kana zviri zvekufanotaura nezveramangwana tekinoroji maitiro ezviratidziro zve LED, pane mapoinzi mana makuru:1. Packaging tekinoroji yakashanduka kubva papoint tekinoroji kurongedza kuenda kumusoro tekinoroji kurongedza, yakatarisana ne LED miniaturization.Iyi ichava nzira yekudzikisa matanho ekugadzira uye kuderedza mari yehurongwa.2. Kubva pane imwe mune imwe, ina mune imwe kusvika kuN mune imwe.Fomu rekurongedza rakarerutswa.3. Kubva pakuona kwehukuru hwechip uye dot pitch, hapana fungidziro kubva kuMini LED kusvika kune micro LED.4. Kubva pakuona kwemusika wekupedzisira, remangwana re LED rinoratidza richachinja kubva kune engineering uye misika yekurenda kuenda kumusika wekutengesa.Shanduko kubva pachiratidziro "screen" kuenda kuratidziro "mudziyo".
Munguva yeMini LED uye Micro LED, ko nezve phosphors?
Mini LED / Micro LED yakazara-chip maratidziro anowanzo kufarirwa neiyoLed display industry, asi matambudziko ekutamisa kukuru mukugadzira maitiro, akawanda-mavara chip control uye akasiyana attenuation zvakare akakurumbira.Matambudziko ari pamusoro asati agadziriswa zvachose, kugadzira phosphors nyowani inonakidzwa neblue Mini LED/Micro LED kudzivirira kusakwana kweiyo tekinoroji iripo uye kupa kutamba kwakazara kune kwayo hunyanzvi hwakanakira zvakare inzira yehunyanzvi iri kutariswa neindasitiri.Nekudaro, zvinodikanwa kugadzirisa dambudziko rediki diki saizi yephosphor uye nekurasikirwa kwekugona kunokonzerwa nediki diki saizi.
Parizvino, Mini LED ichiri yakakodzera iyo LCD indasitiri senge backlight sosi, asi parizvino haina mutengo mukana.Nhasi, iyo indasitiri yeindasitiri yemvura crystal inoratidza ruvara gamut yakavakirwa patsva LED backlight masosi yakapfuura 90% NTSC.Mapasi akatsvagirwa asingawanzo akawana kugadzirwa kwakawanda uye kushandiswa kwakakura kweakamanikana-bhendi fluorides.Mukuenderera mberi nekukunda iyo nyowani yakamanikana-bhendi kuburitswa kwetsvuku uye girinhi phosphors uye LED backlights.Izvi zvinobatsira kuenderera mberi nekuwedzera iyo gamut yeruvara rwekristaro yemvura kuratidza kusvika 110% NTSC, inofananidzwa neOLED/QLED tekinoroji.
Pamusoro pezvo, pamwe quantum dot light-emitting zvinhu zvinogona kuitawo basa.Asi quantum dot luminescent zvinhu "zvinotaridzika zvakanaka" uye zvakapihwa tariro huru.Nekudaro, matambudziko ekugadzikana, kunyatsojeka, kuchengetedza kwezvakatipoteredza uye mutengo wepamusoro wekushandisa hauna kunyatsogadziriswa.Uyezve, photoluminescent quantum dots ndeyekuchinja.Iko kushandiswa chaiko kwema quantum dots kuri muQLED.Parizvino, mamwe mapasi asingawanzo akaisawo kugadzirwa kwezvinhu zvinopenya zveQLED.
Sei iyo yekutanga LED inoratidzira yekutyaira nzira isingashande kana zvasvika kunguva yeMini uye Micro LED?
Kana ma LED ekuratidzira achipinda Micro LED uye Mini LED, tsika dzechinyakare dze LED dzinoratidza nzira dzekutyaira hadzigone kushandiswa.Chikonzero chikuru inzvimbo iripo.Kazhinji kutaura, tsikaChiratidziro che LEDmutyairi IC anogona kutyaira kusvika ku600 pixels, uye nekuti maratidziro e LED anowanzo shandiswa munzvimbo inopfuura 120 inches, saizi yeIC haizokonzeri matambudziko.Nekudaro, kana iwo mapixels akafanana akakwana muhukuru hwenotibhuku kana nharembozha, maIC ehukuru hwakafanana uye nhamba haizokodzeri mumudziyo wenotibhuku kana nharembozha, saka Micro LED uye Mini LED inoda nzira dzakasiyana dzekutyaira.
Kazhinji, madhiraivha modes ezviratidziro anogona kukamurwa kuita mhando mbiri.Rudzi rwekutanga ndiPassive Matrix.Kazhinji passive zvinoreva kuti chete kana mapikseli akaongororwa akaiswa pasi peazvino kana voltage ndipo pachave nekubuda kwechiedza.Imwe nguva yese isina kuongororwa haishande.Sezvo nzira iyi inongoshanda kwekoramu imwe chete panguva yekushandurwa kwefuremu imwe neimwe, zvakaoma zvikuru kuzadzisa zvinodiwa zvekugadziriswa kwepamusoro uye kupenya kwepamusoro pane imwe chete.Uye chero paine pfupi dunhu mune imwe yemapikiseli, zviri nyore kukonzera chiratidzo crosstalk.
Uye zvakare, kune zvakare madhizaini anoshandisa imwe transistor senge switch kudzivirira kukanganiswa kwechiratidzo kunokonzerwa nezvinetso zvechikamu.Chero nzira, chiito chichiri chekungoita.Parizvino, iyi nzira yekutyaira inonyanya kushandiswa mune yakaderera-resolution application nekuda kweiyo nyore dhizaini dhizaini uye yakaderera mutengo.Zvakadai semitambo pfeka zvishongo.Kana pane kudiwa kwepamusoro-resolution panel, akawanda akadzika-resolution modules anogona kushandiswa kusanganisa, senge hombe yekuratidzira skrini.
Imwe mhando yekutyaira modhi ndeye Active Matrix.Sezvinoratidzwa nezita racho, Active Matrix inogona kuramba ichichengetedza yazvino voltage kana yazvino mamiriro kuburikidza nemudziyo wekuchengetera pixel pachayo mukati mefuremu yefuremu.Nekuti iyo capacitor inoshandiswa kuchengetedza, kune zvakare matambudziko ekudonha uye chiratidzo checrosstalk, asi idiki zvakanyanya pane passive drive.Iyo analogi yekutyaira nzira inowanzo iine dambudziko rekufanana rinokonzerwa neyakaonda firimu transistor process uye mwenje-emitting mudziyo pachayo pakugadziriswa kwepamusoro.Naizvozvo, kune zvimwe zvakaoma zvazvino sosi zvimiro zvakaita se7T1C kana 5T2C kugadzirisa dambudziko rekufanana.
Kana saizi yepixel idiki kune imwe nhanho uye zvinodikanwa zvekugadzirisa zvakakwirira kwazvo, nzira yedhijitari yedhijitari ichashandiswa zvakanyanya sezvinobvira kusangana nedambudziko rekufanana rataurwa pamusoro.Kazhinji, pulse width modulation (PWM) inoshandiswa kugadzirisa grey scale.kugadzira mithunzi yakasiyana yegrey.
Iyo PWM nzira inonyanya kushandisa pulse segment yakagoverwa nekufamba kwenguva kugadzira shanduko dzakasiyana dzegreyscale nekushandura nguva yekudzima nekudzima.Iyi tekinoroji inogona zvakare kunzi duty cycle modulation.Sezvo ma LED ari kunyanya anofambiswa nezvino, mukugadzirwa kweMicro-LED madiki maratidziro, nzira yekugadzira yeyakazvimiririra yakatarwa ikozvino sosi inowanzoshandiswa kutyaira yega pixel yakazvimirira kuti isangane nezvinodiwa zvekupenya kwakafanana uye yakagadzikana wavelength., Mukuwedzera, kana kuendeswa kwezvakazvimiririra zvakasiyana ruvara Micro-LED tekinoroji yakashandiswa, zvinofanirwa kufunga nezve oparesheni voltage yeRGB yakasiyana, uye saka inofanirawo kugadzira yakazvimirira voltage supply control circuit mukati mepixel.
Nguva yekutumira: Oct-10-2022