Qhov zoo thiab Kev Tshawb Fawb Txog Kev Tshawb Fawb ntawm OLED Teeb Pom Kev Teeb Tseem Ceeb
Qhov zoo ntawm OLED dawb yog qhov siab heev, thiab nws tau dhau los ua qhov kev tshawb fawb hotspot thiab tsom mus rau thaj chaw ntawm semiconductor teeb pom kev zoo hauv xyoo tas los. Lub ntiaj teb peb lub tuam txhab teeb pom kev lag luam loj Philips, Osram thiab General Electric kuj tau koom nrog hauv kev tshawb fawb ntawm OLED daim ntawv thov teeb pom kev zoo. Xyoo 2010, Nyiv Lumiotech kuj tau tsim cov khoom siv teeb pom kev zoo OLED. Tuam Tshoj kuj muaj Visionox, Nanjing Thawj Organic Teeb pom kev zoo, Beijing BOE, thiab lwm yam. nquag nqis peev hauv kev tshawb fawb thiab kev loj hlob thiab industrialization ntawm OLED teeb pom kev zoo panels.
Organic electroluminescent li (OLEDs) muaj cov yam ntxwv ntawm tag nrho cov khoom-lub xeev, nws tus kheej-luminescence, tsis tshua muaj kev khiav hauj lwm voltage, tsawg zog noj, thiab yuav siv tau rau saj zawg zog substrates. Ntau thiab ntau tus kws tshawb fawb tau mob siab rau nws. Tom qab inorganic teeb-emitting diodes (LEDs), OLED teeb pom kev lag luam thev naus laus zis tau dhau los ua kev tshawb fawb hotspot thiab tsom mus rau thaj chaw teeb pom kev zoo semiconductor hauv xyoo tas los.
Txij li xyoo 2000, US Department of Energy tau nqis peev 30 lab US las ib xyoos ib zaug hauv kev tshawb fawb thiab kev tsim kho OLED teeb pom kev zoo technology. Lub ntiaj teb peb lub tuam txhab teeb pom kev lag luam loj Philips (Philips), Osram (Osram) thiab General Electric (GE) kuj tau koom nrog kev tshawb fawb ntawm OLED daim ntawv thov teeb pom kev zoo. Xyoo 2010, Nyiv Lumiotech kuj tau tsim cov khoom siv teeb pom kev zoo OLED. Tuam Tshoj kuj muaj Visionox, Nanjing Thawj Organic Teeb pom kev zoo, Beijing BOE, thiab lwm yam. nquag nqis peev hauv kev tshawb fawb thiab kev loj hlob thiab industrialization ntawm OLED teeb pom kev zoo panels.
Qhov zoo ntawm Dawb OLED Teeb pom kev zoo
Piv nrog LED, OLED muaj qhov zoo dua hauv qhov pom kev, yooj yim, kev tiv thaiv qhov muag, thiab lwm yam. Nws yog qhov tshwj xeeb tshaj yog tsim rau thaj chaw loj hauv tsev teeb pom kev zoo, thiab muaj cov ntawv thov kev cia siab rau yav tom ntej teeb pom kev zoo. Tsis tas li ntawd, dawb OLED ua ke nrog cov tshuab lim tuaj yeem paub cov xim puv xim. Tom qab ze li ntawm ob xyoo caum ntawm txoj kev loj hlob, kev vam meej tau ua tiav nyob rau hauv kev ua tau zoo thiab kev tshawb fawb theoretical ntawm lub teeb dawb OLED, uas nyob ze rau qhov ua tau zoo ntawm cov teeb fluorescent, uas qhia tau zoo rau daim ntawv thov kev cia siab thiab suav tias yog lub cim tshiab ntawm semiconductor. qhov chaw teeb pom kev zoo.
(1) nto glow
Piv nrog rau lwm yam khoom siv hluav taws xob tsim hluav taws xob, OLED thev naus laus zis ntoo muaj qhov tshwj xeeb zoo thiab yog qhov zoo tshaj plaws teeb pom kev zoo kom deb li deb. Qhov tseem ceeb ntawm OLED teeb pom kev zoo yog tias lub teeb ci nws tus kheej emits lub teeb los ntawm qhov chaw. Cov teeb pom kev zoo uas twb muaj lawm, suav nrog LED teeb pom kev zoo, siv cov ntsiab lus thiab kab teeb pom kev los teeb pom qhov chaw. Thaum lub teeb pom kev zoo yuav tsum tau ua, ntau qhov chaw teeb pom kev zoo thiab kab teeb pom kev zoo ib txwm teeb tsa ua ke, thiab lub vaj huam sib luag zoo li lub teeb npog sab nraud. Kev siv lub teeb dawb OLED thev naus laus zis tuaj yeem paub qhov teeb pom kev zoo ntawm tag nrho saum npoo, thiab tsim cov cuab yeej tsim nyog rau cov teeb pom kev loj thiab teeb pom kev zoo.
(2) Yooj yim
Lub teeb dawb OLED tau npaj rau ntawm qhov hloov pauv tau yooj yim, uas tuaj yeem paub txog lub teeb pom kev nkhaus, tuaj yeem hloov tau, thiab muaj cov yam ntxwv tsis raug tawg, uas yuav ua rau cov khoom siv teeb pom kev zoo tshiab thiab kev siv thev naus laus zis dhau qhov kev xav uas twb muaj lawm.
(3) Kev tiv thaiv ib puag ncig
Raws li tib neeg them nyiaj ntau thiab ntau dua rau kev tiv thaiv ib puag ncig, cov teeb pom kev zoo thiab cov teeb fluorescent tau maj mam hloov, LED teeb pom kev zoo tau dhau los ua lub zog tseem ceeb, thiab OLED teeb pom kev zoo yuav tsum dhau los ua lub teeb pom kev zoo tshiab uas tau nyiam ntau yam vim nws qhov tshwj xeeb. qhov zoo. Raws li kev kwv yees ntawm tus xibfwb Junji Shiroto los ntawm Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb thiab thev naus laus zis ntawm Yamagata University hauv Nyij Pooj, kev siv OLED teeb pom kev zoo yuav tsum txo qis carbon dioxide emissions los ntawm 6.7 lab tons lossis kwv yees li 2.3 feem pua los ntawm 2020.
kev ua tau zoo ntawm cov khoom siv ua haujlwm siab dawb OLED
Kev ua haujlwm siab, lub neej ntev, thiab tus nqi qis yog cov yuam sij rau kev lag luam ntawm qhov chaw teeb pom kev zoo OLED. Ntawm lawv, kev ua tau zoo qhia txog kev muaj peev xwm hloov hluav taws xob rau hauv lub teeb lub zog, lub neej qhia txog nws txoj kev ua tau zoo, thiab tus nqi yog qhov tseem ceeb rau kev siv dav hauv kev ua lag luam. . Ua tib zoo xaiv cov khoom siv thiab kev tsim cov qauv ntawm cov cuab yeej siv, kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob fluorescent xiav thiab cov ntaub ntawv daj lossis xim liab thiab ntsuab phosphorescent yog siv kom tau txais cov txiaj ntsig zoo ntawm lub teeb dawb. Nrog lub teeb rho tawm tshuab, lub zog ua haujlwm tau zoo heev, thiab cov pawg siv tau. Cov qauv ua kom muaj kev ruaj ntseg ntawm cov cuab yeej thiab tau txais kev pabcuam lub neej, uas yog qhov kev xaiv tsim nyog rau WOLED tam sim no. Nyob rau tib lub sijhawm, cov ntaub ntawv thermal ncua fluorescent, raws li lub cim tshiab ntawm cov khoom siv teeb pom kev zoo, tau txais kev saib xyuas thiab kev soj ntsuam sai ntawm cov kws tshawb fawb.
Tam sim no, kev ua tau zoo ntawm cov khoom siv dawb OLED hauv ntiaj teb tab tom hloov nrog txhua hnub dhau mus, thiab cov ntawv ceeb toom tshiab tau tshaj tawm ib zaug. Lub chaw soj nstuam ntawm lub teeb dawb OLED cov cuab yeej tso tawm hauv ob xyoos dhau los yog qhia hauv Table 1 saum toj no. Hauv xyoo 2013, LG cov khoom siv stacked tau tshaj tawm ntawm SID (Society for Information Display) lub rooj sib tham tau ua haujlwm ntawm 80 lm / W thiab lub neej ntev. Txhua-phosphorescent WOLED cov cuab yeej qhia los ntawm Panasonic muaj kev ua tau zoo tshaj 100 lm / W. Nyob rau hauv 2014, Nanjing Thawj Organic Optoelectronics luam tawm ib tug 3-unit laminated qauv nrog ib tug efficiency txog li 117 lm / W. Ntawm lawv, 3-cov txheej txheem laminated siv cov cuab yeej siv hluav taws xob sab nraud tau tuaj yeem ua ntau yam ntawm cov kab ntau lawm, thiab 1000 cd / m2 Qhov ua tau zoo tshaj 80 lm / W, thiab kev ua tau zoo hauv qab 3000 cd / m2 tshaj 60 lm / W, thiab cov khoom ua tau zoo tau mus txog qib thoob ntiaj teb.
Dawb lub teeb OLED technology zeem muag
Ntxiv nrog rau cov khoom siv thiab cov cuab yeej siv, kuj tseem muaj qee cov thev naus laus zis tseem ceeb los txhim kho kev ua haujlwm ntawm OLEDs dawb, uas yog lub teeb rho tawm thev naus laus zis thiab ntim thev naus laus zis. Tsis tas li ntawd, qhov zoo ntawm OLED yog tias nws tuaj yeem npaj cov khoom siv tau yooj yim. Tam sim no, hloov tau yooj yim OLED thev naus laus zis kuj tau dhau los ua ib qho kev tshawb fawb nrov tshaj plaws.
(1) Lub teeb extraction tshuab
Rau cov khoom siv OLED npaj rau ntawm cov pob tshab zoo tib yam, lub teeb pom kev zoo ntawm lub teeb pom kev zoo tsuas yog kwv yees li 20 feem pua, uas txhais tau hais tias ntau dua 80 feem pua ntawm lub teeb tsim hauv lub cuab yeej raug txwv lossis poob rau hauv cov yeeb yaj kiab txheej ntawm cov cuab yeej, uas tsis siv. . . Txhawm rau kom tau txais lub teeb pom kev zoo OLED, lub teeb pom kev zoo ntawm cov cuab yeej yuav tsum tau ua kom zoo dua qub, yog li kev txhim kho lub teeb pom kev zoo yog qhov tseem ceeb tshwj xeeb.
Tam sim no muaj ntau yam kev hloov kho cov cuab yeej uas tuaj yeem txhim kho lub teeb pom kev zoo, uas feem ntau muab faib rau hauv cov txheej txheem rho tawm sab nraud (cov txheej txheem rho tawm sab nraud, EES) thiab cov txheej txheem rho tawm sab hauv (cov txheej txheem rho tawm sab hauv, IES). EES yog tsom rau sab nrauv ntawm lub substrate, thiab IES yog tsom ntawm lub substrate thiab pob tshab electrode. Ees kuj yooj yim los npaj, thiab microurens technology, puab cov tshuab ua ke, nanopor thiab nanoporous membrane tau siv hauv cov khoom lag luam loj-tsim khoom. Hauv qhov sib piv, kev txhim kho lub teeb rho tawm ntawm IES yog ntau dua li ntawm EES, tab sis vim tias nws nyuaj rau kev npaj thiab cov txheej txheem nyuaj, nws tseem tsuas yog nyob rau theem kev sim, ntxig rau cov txheej txheem qis refractive, siv cov tswv yim. xws li photolithography, thiab lwm yam. Cov cuab yeej ITO/organic cheeb tsam yog ua rau cov duab corrugated, photonic muaju, thiab lwm yam.
Tsis tas li ntawd, kev sib koom ua ke tsim tsim microcavities rau hauv OLED cov cuab yeej tuaj yeem txhim kho lub teeb pom kev zoo. Txog tam sim no, cov kws tshawb fawb tau tsim ntau lub teeb rho tawm thev naus laus zis, tab sis tsis muaj ntau tus tuaj yeem ua tau raws li daim ntawv thov. Qhov laj thawj tseem ceeb yog qhov teeb meem ntawm tus nqi uas tshwm sim los ntawm qhov nyuaj ntawm cov txheej txheem thiab qhov teeb meem ntawm thaj chaw loj.
(2) Ntim tshuab ntoo
Ib qho ntawm cov thev naus laus zis tseem ceeb ntsig txog lub neej ntawm OLEDs yog lub tshuab ntim khoom. Txoj kev ntim khoom OLED ib txwm siv lub hau hlau lossis lub khob npog. Txawm hais tias OLED ntim tshuab ib txwm siv tau zoo, nws yog clumsy thiab kim. Tsis tas li ntawd, nws yog qhov tseeb tias cov ntawv npog zoo li no tsis haum rau kev ntim cov khoom siv tau yooj yim. Tsis tas li ntawd, nyias-film encapsulation tshuab tau tshwm sim. Nyias-film encapsulation yuav muab faib ua inorganic nyias-film encapsulation, organic nyias-film encapsulation, thiab inorganic/organic composite nyias-film encapsulation raws li cov khoom encapsulation.
(3) Kev siv tshuab yooj yim ntoo
Flexible zaub technology yeej ib txwm ua rau tib neeg txoj kev npau suav, thiab nws kuj yog qhov tshwj xeeb tshaj plaws ntawm OLED thev naus laus zis. Kev tshawb fawb ntawm cov khoom siv hloov pauv OLED feem ntau yog tsom rau kev txhim kho ntawm cov substrate-sab anodes thiab kev tshawb fawb ntawm cov substrates hloov tau. Cov txheej txheem ITO ib txwm tsis haum rau cov khoom siv tau yooj yim nrog cov khoom siv yas ua cov substrate vim cov txheej txheem kev npaj siab. Thiab vim tsis muaj cov peev txheej indium, nrhiav pob tshab anode cov ntaub ntawv uas tuaj yeem hloov ITO tau dhau los ua qhov kev tshawb fawb hotspot. Tam sim no, cov ntaub ntawv tseem ceeb ntawm cov khoom siv hluav taws xob thiab cov pa roj carbon nanotubes yog. Plastic substrates xws li PET, PES, PEN, thiab hlau substrates tuaj yeem siv los tsim cov khoom siv OLED hloov tau.
Nrog rau kev tshawb fawb tob zuj zus, qhov ua tau zoo, lub neej ntev thiab qhov ci ntawm lub teeb dawb OLEDs tau maj mam txhim kho, thiab yuav txhim kho mus rau thaj chaw loj, muaj kev ntseeg siab, ua haujlwm siab thiab yoog raws. Ntawm qhov tod tes, lub prelude rau industrialization ntawm OLED teeb pom kev zoo tau pib, thiab ntau lub teeb dawb OLED cov khoom lag luam zoo yuav tshwm sim sai sai, ua rau peb nyiam dua thiab kev lom zem zoo meej.
