Cov tsoos LED teeb ci (nrog rau COB) muaj ib qhov luminous loj loj, uas tsis yooj yim rau optimize lub teeb duab ntawm cov duab. Nyob rau hauv no sib, nrog me me teeb-emitting nto siab siv cov zis beam cov yam ntxwv, kub-dawb ntim qauv ntawm high-density cob tau ua ntau tus LED technology hauv lub dazzling Nova, los ntawm kev lag luam, ces, siv COB pob tev naus laus zis muaj txiaj ntsig zoo li cas?
Cov cob qhia los yog, qhov me me ua qhov ntawm LED nkag mus rau theem tshiab
Dab tsi yog cob (chip rau lub rooj tsavxwm) me me suab tso saib technology? Yog li ntawd, lub teeb ci-emitting Crystal ncaj qha encapsulated rau PCB lub rooj tsavxwm, thiab lub xovtooj ntawm chav ua haujlwm nkag mus rau hauv lub tshuab. Tam sim no, Granville Chong, Sony thiab lwm yam kev lag luam giants ntawm kev siv tshuab muab kev txhawb zog.
Kev lag luam hauv high-end loj-screen qhia ua hom Wei Chuang ntseeg hais tias qhov kev sib tw me me ntawm cov zaub yuav muab faib ua ob theem: thawj theem yog daws teeb meem ntawm kev siv, cov tub ntxhais siv tshuab kov yeej ua rau cov pixel nruam los txo qis dua 2 milimeters , P1.5 thiab P1.2 yam khoom loj; qhov thib ob theem ntawm kev sib tw me me coj mus rau qhov kev lag luam yog tsuas yog muab cov khoom pov thawj siab dua thiab kev pom muaj txiaj ntsig, uas COB encapsulation yog ib qho tseem ceeb tshaj plaws ntawm cov lus qhia siv tshuab.
COB PACKAGE Cov kab me me ua rau vim li cas thiaj li muaj tej yam yees siv
Nyob rau hauv txoj kev ua haujlwm ntawm high-temperature, vim cov khoom sib txawv hauv SMD thaj pob ntawm cov teeb ci LED, xws li tooj liab stent, epoxy ntaub material thiab siv lead ua thermal expansion coefficient, kev kub nyhiab hloov ntawm teeb roj teeb yog tsis muaj kev tiv thaiv. Qhov no tau los ua qhov me me ntawm cov vijtsam ntawm cov vijtsam hluavtaws teeb, cov teeb ntawm cov tub ntxhais kawm "teeb meem loj".
thiab siv COB ntim tshuab, hauv cov wafer tom qab lub txheej txheem ntim, tau siv lead ua ib zaug ua lub tsev me me, yuav tsum tsis txhob lig "rooj nplaum" vuam. Txoj kev tsim vaj tsev no, los ntawm kev txo ntawm kev kub siab thiab qhov chaw siab kub qhov chaw, qhov siab tshaj plaws ntawm kev tiv thaiv ntawm cov hluav taws xob Crystal hluav taws xob thiab semiconductor stability, yuav ua rau pom ntawm qhov phem teeb nqi mus rau ib qhov siab lossis ntau dua.
Zuag qhia tag nrho pob, COB tshuab tau ntau heev
Kev sib tw me me ntawm qhov teeb meem ntawm lub teeb thiab kev ruaj ntseg ntawm lub kaum sab xis, ntxiv rau qhov qhia txog "kev kub ntxhov" ua rau muaj kev kub ntxhov, muaj ntau qhov chaw yuav tsum xa qhov tseem ceeb rau:
Ua ntej, qhia txoj kev sib tsoo ntawm chav tsev. SMD cov khoom ntawm lub teeb txig tsis yog nrog PCB txuas kev sib txuas, uas ua rau txoj kev sib tsoo yooj yim kom ua rau kev nyuab siab nyob rau hauv ib qho teeb meem uas tsis muaj teeb meem. Thiab qhov loj-screen system ntawm thauj, installation, thiab thiaj li nyob rau hauv, muaj kev tsis pom kev xyuam xim thiab kev sib tsoo. Qhov no ua rau muaj kev sib tw me me coj qhov teeb pom kev zoo ntawm "engineering" nce. COB encapsulation siv tshuab, los ntawm epoxy resin, wafer, PCB lub rooj sib txoos ntawm kev sib sau ua ke molding, tuaj yeem tiv thaiv nti thiab nti hluav taws xob txuas qhov chaw.
Thib ob, qhov kub tsis hnyav rau hauv tus txheej txheem ntawm lub system. Qhov ntau spacing ntawm SMD pob me me spacing khoom, ntau dua kev siv ntawm high-power me me-particle led muaju. Nyob rau tib lub sij hawm, qhov sib txawv ntawm lub teeb txig thiab cov ntawv xov xwm tuaj yeem ua rau cov khoom siv hluav taws xob khov muaj peev xwm khuam siab thaum lub wafer ua haujlwm. COB pob Vim tias kev siv cov txheej txheem ntxiv, thiaj li xaiv qhov siv lead ua tau xaiv lub zog ntawm qhov txo qis, siv lead ua ntau ntau ntawm cov chips, thiab ua rau txo qhov tseem ceeb ntawm cov hauj lwm siv. Nyob rau tib lub sijhawm, txoj kev cob qhia pob tsuas pom tau tias tseem muaj zog-xeev seamless thoob hauv lub epoxy hlau, uas ua rau lub thermal concentration ntawm cov hluav taws xob qis hauv kev ua hauj lwm raug txo, uas tuaj yeem ua rau lub neej muaj khoom thiab ua kom muaj kev ruaj ntseg ntawm lub system.
Thib peb, txoj kev ua txhua yam txheej txheem, cob kom "ua tiav tsib zaug tiv thaiv." Ntawd yog, cob tau ua tau zoo heev siv lead ua, Crystal hluav taws xob txuas qhov chaw ntawm "waterproof, noo noo, hmoov tsis sib haum, anti-static, oxidation pov thawj." Piv nrog SMD encapsulation, lub sij hawm ntev tshuaj thiab hluav taws xob ruaj ntseg puas ntawm hluav taws xob txuas tshwm sim nyob rau hauv tus txheej txheem, tshwj xeeb tshaj yog nyob rau hauv muaj vibrations thiab collisions-ib ntawm cov culprits ntawm pheej tsis zoo teeb nyob rau hauv ntev daim ntawv sau npe.
Ua ib qho tseem ceeb, lub pob pob cob qhia yog ib qho txheej txheem uas sib piv SMD cov khoom los muab "kev ntseeg siab".
