COB yog dab tsi?
COB thev naus laus zis yog ib qho kev lag luam ntim khoom siv LED. Tsis zoo li cov tsoos SMD nto-mount ntim, nws ua ke lub teeb - emitting chips mus rau PCB board, es tsis yog soldering lawv tus kheej. COB zoo txhim kho cov xim thiab lub teeb emissions ntawm LED zaub, txo kev pheej hmoo, thiab txo tus nqi.
LEDs muaj ob daim ntawv ntim: discrete thiab integrated. Discrete LED li yog ib txoj kev ntim khoom ib txwm siv, dav siv hauv ntau yam kev lag luam. Tom qab ntau tshaj li plaub caug xyoo ntawm txoj kev loj hlob, ib tug series ntawm mainstream khoom cov ntaub ntawv tau tshwm sim. Chip- kev sib xyaw ua ke tam sim no yog ib txoj hauv kev ntim khoom, feem ntau yog tsim thiab tsim rau cov khoom siv tshwj xeeb, thiab tseem tsis tau dhau los ua cov khoom tseem ceeb.
Kev coj noj coj ua ntawm LED, vim tias tsis muaj cov khoom tsim nyog rau lub teeb pom kev zoo, tsis yog kev ua haujlwm nkaus xwb - siv zog thiab sijhawm - siv tab sis kuj raug nqi.
Qhov tseeb, peb tuaj yeem ua ke "discrete LED teeb qhov khoom siv → MCPCB lub teeb qhov chaw module" rau hauv ib qho, ncaj qha mounting cov semiconductor chips mus rau MCPCB los tsim COB lub teeb qhov chaw module. Kev sib txuas hluav taws xob ntawm cov nti thiab cov substrate yog tiav los ntawm kev siv cov hlua khi, thiab cov resin yog siv rau kev tiv thaiv kom ntseeg tau. Qhov no tsis tsuas yog txuag kev ua haujlwm thiab sijhawm, tab sis kuj txo cov nqi ntim khoom. [1] Piv nrog rau cov khoom siv LED tsis sib xws, COB lub teeb pom kev zoo tuaj yeem txuag tau ntawm tus nqi ntawm cov khoom ntim thawj LED, lub teeb cav module tsim, thiab cov khoom siv hluav taws xob thib ob hauv kev siv, thiab cov kev suav tseeb qhia tau tias lawv tuaj yeem txo tus nqi ntawm lub teeb los ntawm li 30%. Nyob rau hauv cov nqe lus ntawm kev ua tau zoo, los ntawm tsim nyog tsim thiab microlens molding, COB lub teeb qhov chaw modules tau zoo zam qhov tsis zoo ntawm discrete lub teeb qhov chaw ntaus ntawv ua ke, xws li chaw teeb pom kev zoo thiab glare; thiab los ntawm kev ntxiv cov xim liab nti sib xyaw ua ke, cov xim rendering ntawm lub teeb ci tuaj yeem txhim kho tau zoo yam tsis muaj kev txo qis kev ua haujlwm thiab lub neej ntawm lub teeb ci. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, COB lub teeb qhov chaw modules yuav ua rau installation thiab ntau lawm yooj yim thiab yooj yim dua, zoo txo nqi daim ntawv thov; hais txog kev tsim khoom, cov txheej txheem thev naus laus zis thiab khoom siv tam sim no tuaj yeem txhawb nqa loj - nplai tsim ntawm COB lub teeb ci modules nrog cov txiaj ntsig siab.
