Tsis ntev los no, BOE pab pawg tshawb fawb tau luam tawm ib daim ntawv hu ua Novel Package Design Enhances Optical Efficiency of Micro LED Displays in the journal Information Display.

Micro LED Zaub Microstructure Ntim Tsim Txheej Txheem (Duab qhov chaw: Cov ntaub ntawv zaub)

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Txoj kev tshawb no qhia txog lub tswv yim tshiab Micro LED ntim khoom, ua tiav kev daws teeb meem kev lag luam hauv kev lag luam xws li cov phab ntsa muaj zog emission ntawm micro LED chips, kev siv hluav taws xob tsawg, thiab xim hloov.

Nws tau tshaj tawm tias raws li qhov loj me ntawm pixels qis dua 50μm, thaj tsam txheeb ze ntawm lub nti sab nrauv nce, ua rau kev txhim kho sab nraud emission thiab txo qis sab saum toj emission ntawm Micro LEDs. Qhov no ua rau lub teeb poob thiab xim sib txawv, txwv tsis pub siv Micro LEDs nyob rau hauv high-precision zaub scenarios.

Txhawm rau daws qhov teeb meem no, BOE pab pawg tshawb fawb tau tsim cov qauv ntim khoom sib xyaw uas muaj cov nplaum nplaum nplaum nplaum nplaum nplaum, cov xim dawb-reflective resin, microlens arrays, thiab cov qauv dub matrix (BM).

Los ntawm kev qhia txog gradient refractive index txheej ntawm Micro LED chips, cov kws tshawb fawb tau txhim kho lub kaum sab xis tawm ntawm lub teeb los ntawm sab saum toj ntawm lub nti, nce lub kaum sab xis ntawm 25 degrees mus rau qhov siab tshaj plaws ntawm 65.9 degrees thiab txhim kho lub teeb pom kev zoo sab saum toj.

Lub caij no, cov xim dawb reflective resin tsim ib qho isosceles trapezoidal qauv ntawm cov chips, uas tuaj yeem mloog zoo thiab tawg lub teeb, ua kom lub teeb ci ntawm 0 ° saib lub kaum ntse ntse los ntawm kwv yees li 27%. Tsis tas li ntawd, cov txheej txheem ntshav plasma tshem tawm cov nplaum seem ua kom lub teeb tsis muaj teeb meem.

Nyob rau hauv cov nqe lus ntawm kev tswj lub teeb, pab neeg siv nanoimprint lithography tshuab los fabricate high-precision microlens arrays, ua tau zoo convergence ntawm lub teeb nyob rau hauv ± 60 °.

Cov txiaj ntsig simulation qhia tau hais tias thaum lub lens curvature yog 0.03 thiab qhov ntsuas qhov taw qhia yog 1.85, lub teeb siv zog nce ntau dua 53%. Tsis tas li ntawd, txoj kev tshawb no tau qhia txog cov qauv dub matrix rau hauv ntim cov iav txheej, txo qhov kev xav tau tsawg dua 2% thiab ua tiav qhov sib piv siab tshaj 20,000: 1, txhim kho cov duab zoo.

(a) Micro LED qauv, (b) Lub teeb emission coj mus rau hauv lub nti, (c) Lub teeb faib (Duab qhov chaw: Cov lus qhia zaub)

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BOE pab pawg tshawb fawb tau hais tias cov tswv yim no tsis tsuas yog ua tiav kev ua haujlwm ntawm kev kho qhov muag thiab kev sib xws, tab sis kuj tseem txiav txim siab txog kev ntim khoom. Kev sib xyaw ua ke ntawm cov iav npog thiab OCA (Optically Clear Adhesive) txheej txhim kho cov dej tsis muaj dej, tiv thaiv oxidation, thiab hnav-tiv taus, muab txoj hauv kev txhim khu kev qha rau kev tsim khoom loj ntawm Micro LEDs hauv thaj chaw xws li cov khoom siv tsheb, AR / VR headsets, thiab cov khoom siv hnav.

BOE tsis tau tsuas yog ua tiav qhov kev tshawb fawb ntawm Micro LED qhov kawg nkaus xwb tab sis tseem txuas ntxiv txhawb kev txhim kho ntawm Mini / Micro LED ncaj qha tso saib thev naus laus zis thiab kev siv.