Laipẹ, ẹgbẹ iwadii BOE ṣe atẹjade iwe kan ti akole Apẹrẹ Package Aramada Ṣe Imudara Iṣe-ṣiṣe Iṣe-iṣapẹrẹ ti Awọn ifihan Micro LED ninu iwe iroyin Ifihan Alaye.

Ilana Iṣakojọpọ Microstructure Ifihan Micro LED (orisun Aworan: Ifihan Alaye)

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Iwadi naa ṣe igbero ero iṣakojọpọ Micro LED imotuntun kan, ni aṣeyọri ti nkọju si awọn italaya imọ-ẹrọ ile-iṣẹ bii itujade ẹgbẹ odi ti o lagbara ti awọn eerun LED micro, ṣiṣe lilo agbara ina kekere, ati iyipada awọ.

O ti wa ni royin wipe bi pixel iwọn isunki si isalẹ 50μm, awọn ojulumo agbegbe ti awọn ërún sidewall posi, yori si imudara itujade ita ati din ku oke itujade ti Micro LED. Eyi nfa ipadanu imọlẹ ati iyapa awọ, ihamọ ohun elo ti Awọn LED Micro ni awọn oju iṣẹlẹ ifihan pipe-giga.

Lati koju ọran yii, ẹgbẹ iwadii BOE ṣe agbekalẹ igbekalẹ iṣakojọpọ akojọpọ kan ti o ni itọsi itọsi giga-refractive-index, resini giga-funfun, awọn ohun elo microlens, ati apẹrẹ dudu matrix (BM).

Nipa iṣafihan Layer itọka itọka itọka gradient lori awọn eerun Micro LED, awọn oniwadi ni imunadoko ni ilọsiwaju igun ijade ti ina lati oke ti chirún, jijẹ igun to ṣe pataki lati awọn iwọn 25 si iwọn ti awọn iwọn 65.9 ati imudara imudara isediwon ina oke ni pataki.

Nibayi, resini afihan funfun jẹ ẹya isosceles trapezoidal be laarin awọn eerun igi, eyiti o le ṣojumọ ati tuka ina, jijẹ imọlẹ ni igun wiwo 0 ° nipasẹ isunmọ 27%. Ni afikun, ilana pilasima lati yọ alemora ti o ku ni idaniloju itujade ina ti ko ni idiwọ.

Ni awọn ofin iṣakoso ina, ẹgbẹ naa lo imọ-ẹrọ lithography nanoimprint lati ṣe agbero awọn ohun elo microlens ti o ga julọ, iyọrisi isọdọkan ti o munadoko ti ina laarin ± 60 °.

Awọn abajade kikopa fihan pe nigbati ìsépo lẹnsi jẹ 0.03 ati atọka itọka jẹ 1.85, kikankikan ina pọ si nipasẹ 53%. Pẹlupẹlu, iwadi naa ṣafihan matrix dudu ti o ni apẹrẹ sinu Layer gilasi apoti, ni idinku imunadoko si kere ju 2% ati iyọrisi ipin itansan giga ti o kọja 20,000: 1, ni ilọsiwaju didara ifihan ni pataki.

(a) Eto Micro LED, (b) Itọsọna itujade ina inu chirún, (c) pinpin ina (orisun aworan: Ifihan Alaye)

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Ẹgbẹ iwadii BOE ṣalaye pe ero yii kii ṣe awọn aṣeyọri awọn aṣeyọri nikan ni ṣiṣe opiti ati isokan ṣugbọn tun gbero igbẹkẹle apoti. Ijọpọ ti ideri gilasi ati OCA (Optically Clear Adhesive) Layer ṣe imudara omi, egboogi-oxidation, ati awọn ohun-ini sooro, pese ọna ti o gbẹkẹle fun ohun elo iṣelọpọ ti awọn Micro LED ni awọn aaye bii awọn ifihan ọkọ ayọkẹlẹ, awọn agbekọri AR / VR, ati awọn ẹrọ wearable.

BOE ko ṣe aṣeyọri awọn abajade iwadii Micro LED tuntun ṣugbọn tun tẹsiwaju lati ṣe agbega idagbasoke ti Imọ-ẹrọ ifihan taara Mini / Micro LED ati awọn ohun elo.