Vim li cas COB LED Strips tsis muaj qhov pom pom?

Thaum xaiv LED strips lossis tsim cov teeb pom kev zoo, cov neeg siv khoom feem ntau nug: "Vim li cas cov qauv LED strips qhia pom cov teeb pom kev ntawm ib tus neeg thaum lub teeb pom kev zoo, qhov COB strips tshwm sim ua ntu zus, tsis tu ncua ntawm lub teeb uas tsis muaj 'dotting' effect?" Qhov no tsis yog tsuas yog kev lag luam gimmick; Nws yog qhov tshwm sim ntawm kev sib cuam tshuam ntawm kev teeb tsa ntawm cov nti, cov txheej txheem substrate, thiab ntim tshuab. Nyob rau hauv tsab xov xwm no, peb yuav piav qhia cov ntsiab lus technical tom qab qhov tshwm sim no.

COB sawv cev rau "Chip on Board." Nws yog hais txog ib txoj kev ntim khoom uas liab qab LED chips yog sib txuas ncaj qha mus rau ib qho yooj yim substrate thiab ces them nrog ib tug unified txheej ntawm phosphor thiab silicone. Qhov no txawv ntawm cov tsoos SMD strips, qhov twg cov chips yog thawj zaug ntim rau hauv ib tus neeg cov hlaws me me ua ntej muab tso rau hauv PCB ib qho los ntawm ib qho. Qhov sib txawv tseem ceeb hauv kev ntim cov logic txiav txim siab qhov pom qhov pom ntawm ob hom strips.

Feem ntau SMD strips muaj qhov ntom ntawm 60 lossis 120 LEDs ib 'meter'; qhov sib nrug ntawm lub cev ntawm cov chips yog qhov loj, ua rau nws yooj yim rau qhov muag liab qab kom paub qhov txawv ntawm ib tus neeg lub teeb dots. Nyob rau hauv sib piv, COB strips siv ib tug array ntawm liab qab chips nrog ceev mus txog 300 ib meter los yog siab dua. Qhov sib nrug ntawm cov chips yog compressed mus rau qib millimeter, tawm hauv qhov tsis pom qhov sib txawv ntawm cov teeb pom kev zoo, uas ua rau pom qhov tsis sib haum xeeb, txuas ntxiv ntawm lub teeb.

Cov txheej txheem COB suav nrog kev siv cov txheej txheem sib koom ua ke ntawm phosphor sib xyaw nrog silicone hla tag nrho cov kab sib txuas, tsis yog ntim txhua cov hlaws LED ib tus zuj zus raws li ua tiav nrog SMD thev naus laus zis. Cov txheej txuas txuas ntxiv no ua rau txuas ntxiv diffuse thiab homogenize lub teeb. Raws li lub teeb hla dhau los ntawm txheej txheej, cov txheej txheem ntawm cov chips ib leeg yog softened, ua rau lub teeb -emitting nto uas zoo nkaus li zoo ib yam thiab cohesive es tsis yog ib tug sau los ntawm discrete point qhov chaw.

Lub circuitry ntawm lub substrate hloov tau ntawm COB LED strips yog tsim los ua kom tas mus li, faib tam sim no sib npaug rau cov chips thoob plaws tag nrho cov sawb; tsis zoo li SMD strips, lawv tsis muaj segmented qauv ntawm discrete solder -pad units spaced txhua ob peb centimeters. Cov qauv hluav taws xob txuas ntxiv no ua kom muaj qhov ci ntsa iab ntau dua nyob ntawm txoj hlua thiab txo cov teeb meem nrog qhov chaw flickering lossis qhov ci tsis sib xws.

Vim tias COB thev naus laus zis siv cov chips liab qab ntau dua li ntim cov hlaws LED, tus kheej cov chips me dua. Thaum ua ke nrog kev nruj nruj thiab qhov sib txawv ntawm qhov sib txawv / cov khoom tawg ntawm cov txheej txheej silicone, lub teeb tau tawg kom huv si ua ntej emission, lub cev txo qis qhov pom lub teeb pom kev (pixelation).

Lub teeb tso zis:COB tsim ib lub teeb linear txuas ntxiv ntawm lub teeb; SMD qhia txog qhov txawv dotted qauv.

Chip ceev:COB feem ntau tshaj 300 chips / meter; SMD feem ntau yog li ntawm 60 txog 120 chips / meter.

Ntim:COB nta ib txheej txheej; SMD siv tus kheej, ntim khoom ywj pheej rau txhua lub nti.

Flexibility:COB substrates yog thinner thiab softer, tso cai rau smoother dabtsi yog khoov; SMD yooj yog txwv los ntawm qhov loj ntawm LED hlaws, uas ua rau qhov loj tshaj qhov nkhaus nkhaus.

Saib nrug:COB qhia me ntsis kom tsis muaj pixelation txawm nyob ze; SMD nthuav qhia pom pom pixelation thaum pom ze.

Ua tsaug rau qhov tsis pom pixelation, COB LED strips yog qhov tshwj xeeb zoo - haum rau cov ntawv thov uas xav tau lub teeb pom kev zoo sib xws. Piv txwv suav nrog cov teeb pom kev hauv tsev nyob hauv tsev, cov teeb pom kev zoo, thiab phab ntsa- ntxuav cov teebmeem hauv "tsis muaj-lub ntsiab- teeb" tsim. Lawv kuj zoo tagnrho rau cov chaw lag luam uas lub sawb nws tus kheej tau saib ntawm qhov ze, xws li hauv cov khoom txee, saib iav qhov muag teeb pom kev zoo, thiab tsev so hauv tsev. Hauv cov xwm txheej no, siv cov qauv SMD strips yuav ua rau pom cov teeb pom kev zoo uas cuam tshuam los ntawm tag nrho cov kev paub pom, qhov COB strips tsim cov nyhuv ze rau qhov txuas ntxiv "luminous nto" es tsis yog cov "luminous ntsiab lus."

Qhov tsis pom lub teeb pom kev hauv COB LED strips yog qhov tshwm sim los ntawm kev sib xyaw ua ke ntawm cov yam ntxwv -ntau dua nti ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom COB LED sawb yog qhov tshwm sim los ntawm kev sib xyaw ua ke ntawm cov khoom sib xyaw ua ke Kev nkag siab txog cov hauv paus ntsiab lus no ua rau cov neeg yuav khoom thiab cov neeg tsim qauv los ntsuas qhov tseeb seb lub sawb puas muaj txiaj ntsig COB zoo, tsis yog tsuas yog tso siab rau "COB" daim ntawv lo hauv cov khoom lag luam.

Yog tias koj tab tom xaiv COB LED strips rau ib qhov project lossis xav paub ntau ntxiv txog cov khoom specifications -xws li ceev, xim kub, thiab waterproof ratings- thov koj xav tiv tauj peb pab neeg. Peb tuaj yeem muab cov lus pom zoo rau cov khoom lag luam thiab nqe nqe lus raws li koj qhov kev thov tshwj xeeb.

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