COB Lub Teeb Stripsvs. Tsob Ntoo SMD Lub Teeb Strips: Ib qho Kev Sib Txuas Zoo
Nyob rau hauv lub ntiaj teb hloov zuj zus ntawm LED teeb pom kev zoo, ob lub thev naus laus zis tseem ceeb tau tshwm sim los ua cov kev xaiv nrov rau cov teeb pom kev zoo nkauj thiab ua haujlwm: Chip- ntawm-Board (COB) lub teeb strips thiab Surface-Mount Device (SMD) lub teeb strips. Thaum ob qho tib si ua haujlwm lub hom phiaj tseem ceeb ntawm kev muab cov teeb pom kev zoo, lawv cov qauv sib txawv ua rau muaj qhov zoo thiab qhov tsis zoo uas ua rau muaj kev siv ntau yam.
Ib qho ntawm qhov zoo tshaj plaws ntawm COB lub teeb strips lus dagnyob rau hauv lawv superior teeb pom kev zoo uniformity. COB thev naus laus zis sib koom ua ke ntau lub chips LED ncaj qha mus rau ib lub substrate yam tsis muaj vaj tse nyob ib leeg, tsim kom muaj lub teeb ci txuas ntxiv -emitting nto. Qhov kev tsim no tshem tawm cov "dot effect" uas muaj nyob rau hauv SMD strips, qhov uas cov diodes discrete LED tuaj yeem tsim qhov pom kev ci ntsa iab lossis tsis sib xws ntawm lub teeb, tshwj xeeb tshaj yog thaum saib los ntawm kev nyob ze. Rau cov ntawv thov xws li hauv qab - teeb pom kev hauv txee, kos duab teeb pom kev zoo, lossis ambient phab ntsa ntxuav, qhov teeb pom kev tsis sib haum no ua kom pom kev nplij siab thiab kev zoo nkauj.
COB lub teeb strips kuj zoo nyob rau hauvthermal tswj. Los ntawm kev faib cov cua sov thoob plaws thaj chaw loj dua, lawv txo qhov kev pheej hmoo ntawm cov hotspots uas tuaj yeem txo qis kev ua haujlwm ntawm LED lub sijhawm. Qhov kev siv hluav taws xob zoo no ua rau muaj kev ua haujlwm ntev dua, nrog ntau COB strips tswj qhov pom kev ci ntsa iab rau 50,000 teev lossis ntau dua nyob rau hauv kev siv kom raug. Hauv qhov sib piv, SMD strips, nrog lawv tus kheej diodes, tuaj yeem khaws cov cua sov ntau dua, ua rau lawv lub neej luv yog tias tsis txias txaus.
Hais txog lub teeb zoo, COB technology feem ntau xasiab dua xim rendering Performance index (CRI)Qhov tseem ceeb, feem ntau yog li ntawm 80 txog 95. Qhov no txhais tau hais tias COB strips tuaj yeem tsim cov xim tiag tiag ntawm cov khoom, ua rau lawv zoo tagnrho rau cov chaw xws li cov chaw muag khoom, tsev cia puav pheej, lossis cov chaw thaij duab uas muaj xim yog qhov tseem ceeb. SMD strips, thaum txhim kho hauv cheeb tsam no, feem ntau muab qis dua CRI qhov tseem ceeb tshwj tsis yog tsim tshwj xeeb rau cov xim fidelity.
Txawm li cas los xij, COB lub teeb strips tsis muaj qhov tsis zoo. Lawv qhov tsis zoo tshaj plaws yogcov nqi ntau lawm. Cov txheej txheem tsim khoom nyuaj ntawm kev sib xyaw ua ke ntawm ntau lub chips rau hauv ib qho substrate ua rau COB strips kim dua SMD lwm txoj kev, uas siv cov pob khoom yooj yim dua, cov qauv diode. Cov nqi sib txawv no tuaj yeem yog qhov tseem ceeb rau kev teeb tsa loj - nplai, ua SMD strips ib pob nyiaj ntau dua -kev xaiv tus phooj ywg rau tus nqi- cov haujlwm tseem ceeb.
Lwm qhov kev txwv ntawm COB strips yog lawvtxo qhov yooj yim ntawm kev hloov kho thiab kho. Txij li cov chips LED tau muab tso rau hauv ib qho module, ib qho kev ua tsis tiav tuaj yeem ua rau tag nrho ntu tsis yog- ua haujlwm. Hauv qhov sib piv, ib tus neeg SMD diodes feem ntau tuaj yeem hloov tau yog tias puas, tso cai rau kev kho kom yooj yim dua thiab kho. Tsis tas li ntawd, SMD strips muaj ntau dua nyob rau hauv kev xaiv xim thiab teeb tsa, nrog ntau yam sib txawv xws li RGB (liab-ntsuab-xiav) lossis RGBW (RGB + dawb) muab cov xim sib xyaw ua ke uas nyuaj rau ua tiav nrog COB thev naus laus zis.
COB strips kuj zoo li muajtsawg zog nyob rau hauv lub cev dabtsi yog khoov. Lub substrate nruj uas yuav tsum tau ua hauv tsev cov chips sib xyaw ua rau lawv tsis tshua haum rau cov ntawv thov uas yuav tsum tau nruj nkhaus los yog cov duab zoo sib xws, qhov twg cov boards hloov tau yooj yim ntawm SMD strips muaj kev hloov tau zoo dua. Qhov no txwv kev siv COB hauv cov teeb pom kev zoo nkauj uas cuam tshuam nrog cov contours nyuaj lossis nkhaus qhov chaw
Hauv kev xaus, COB lub teeb strips thiab tsoos SMD lub teeb strips txhua tus muaj qhov sib txawv thiab qhov tsis muaj zog. COB strips ci rau hauv daim ntawv thov xav tau kev teeb pom kev zoo ib yam, cov xim raug siab, thiab kev ntseeg tau ntev ntev, txawm tias lawv cov nqi siab dua thiab kev kho qis dua. SMD strips, ntawm qhov tod tes, muab kev hloov pauv ntau dua, cov nqi qis dua, thiab kev hloov kho yooj yim dua, ua rau lawv nyiam dua rau cov peev nyiaj -paub txog tej yaam num lossis teeb pom kev zoo nrog cov duab nyuaj. Kev nkag siab txog qhov sib txawv no tso cai rau cov neeg siv los txiav txim siab raws li lawv cov kev xav tau teeb pom kev tshwj xeeb, txawm hais tias qhov tseem ceeb ntawm qhov pom kev zoo, kev siv nyiaj txiag, lossis kev hloov pauv.
