Posachedwapa, gulu lofufuza la BOE lidasindikiza pepala lotchedwa Novel Package Design Imakulitsa Kuchita Bwino Kwambiri kwa Micro LED Displays mu nyuzipepala ya Information Display.

Mapangidwe a Micro LED Display Microstructure Packaging Design (Gwero la zithunzi: Chiwonetsero chazidziwitso)

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Kafukufukuyu akupereka njira yatsopano yopangira ma Micro LED, kuthana bwino ndi zovuta zaukadaulo zamakampani monga kutulutsa kwapambali kwa tchipisi tating'onoting'ono ta LED, kugwiritsa ntchito mphamvu zochepa, komanso kusintha kwamitundu.

Akuti kukula kwa pixel kumachepera pansi pa 50μm, malo achibale a chip sidewall amawonjezeka, zomwe zimatsogolera kupititsa patsogolo kutulutsa kwapambuyo ndikuchepetsa kutulutsa kwapamwamba kwa ma Micro LED. Izi zimapangitsa kutayika kwa kuwala ndi kusiyana kwa mtundu, kuletsa kugwiritsa ntchito ma Micro LED muzithunzi zowonekera bwino kwambiri.

Kuti athane ndi vutoli, gulu lofufuza la BOE lidapanga zomata zophatikizika zokhala ndi zomatira zowoneka bwino, zoyera zowoneka bwino, ma microlens arrays, ndi matrix wakuda (BM).

Poyambitsa gradient refractive index layer pa tchipisi ta Micro LED, ofufuza adawongolera bwino njira yotuluka ya kuwala kuchokera pamwamba pa chip, ndikuwonjezera mbali yofunikira kuchokera pa madigiri 25 kufika pamlingo wapamwamba wa madigiri 65.9 ndikukulitsa kwambiri kuwala kwapamwamba.

Pakadali pano, utomoni wonyezimira woyera umapanga mawonekedwe a isosceles trapezoidal pakati pa tchipisi, omwe amatha kuyang'ana ndikumwaza kuwala, ndikuwonjezera kuwala kwa 0 ° kuwonera angle pafupifupi 27%. Kuphatikiza apo, njira ya plasma yochotsa zomatira zotsalira zimatsimikizira kutuluka kwa kuwala kosatsekeka.

Pankhani ya kuwongolera kuwala, gululo linagwiritsa ntchito ukadaulo wa nanoimprint lithography kupanga makina olondola kwambiri a ma microlens, kukwaniritsa kulumikizana koyenera kwa kuwala mkati mwa ± 60 °.

Zotsatira zofananira zikuwonetsa kuti pamene kupindika kwa mandala ndi 0.03 ndipo index yowonekera ndi 1.85, kuwala kwamphamvu kumawonjezeka ndi 53%. Kuphatikiza apo, kafukufukuyu adayambitsa mawonekedwe amtundu wakuda mugawo lagalasi, ndikuchepetsa kuwunikira mpaka kuchepera 2% ndikupeza kusiyana kwakukulu kopitilira 20,000: 1, kuwongolera bwino mawonekedwe.

(a) Kapangidwe ka Micro LED, (b) Kuwongolera kotulutsa kuwala mkati mwa chip, (c) Kugawa kowala (Gwero lachithunzi: Chidziwitso)

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Gulu lofufuza la BOE linanena kuti chiwembuchi sichimangopindula bwino pakuwoneka bwino komanso kufananiza komanso kumayang'ana kudalirika kwamapaketi. Kuphatikiza kwa chivundikiro cha galasi ndi OCA (Optically Clear Adhesive) kumawonjezera madzi, anti-oxidation, ndi katundu wosamva kuvala, kupereka njira yodalirika yogwiritsira ntchito ma Micro LED m'madera monga zowonetsera magalimoto, AR / VR mahedifoni, ndi zipangizo zovala.

BOE sinangopeza zotsatira zaposachedwa za kafukufuku wa Micro LED komanso ikupitiliza kulimbikitsa chitukuko cha Mini/Micro LED ukadaulo wowonetsera mwachindunji ndi ntchito.