LED yog luv luv rau Lub Teeb Emitting Diode.Ib qho LED emits lub teeb raws li qhov tshwm sim ntawm hluav taws xob luminescence.Nws tseem hu ua "lub teeb txias" zoo li, tsis zoo li cov qhov muag teev qub, lub teeb tsis yog tsim los ntawm cua sov cov hlau.Lub diode, ntawm qhov tod tes, emits lub teeb thaum ntws los ntawm ob tshwj xeeb coated silicon semiconductors.Nws yog ib qho ntawm kev siv hluav taws xob ntau tshaj plaws thiab txuag hluav taws xob los tsim lub teeb.
Lub LED muaj cov khoom siv tsis muaj qhov txav tau thiab feem ntau yog molded rau hauv pob tshab yas.Qhov no ua kom muaj kev ruaj khov siab.Thaum lub LED qhib, nws tawm yuav luag tsis muaj cua sov.Qhov no txo qhov teeb meem ntawm qhov txias ntawm cov khoom siv hluav taws xob.
Thawj LED yog tsim los ntawm Lavxias teb sab inventor Oleg Losev nyob rau hauv 1927. Tau ntau xyoo, nws tsuas yog ua tau los tsim infrared, liab thiab daj LEDs.Cov diodes no tau pom nyob rau hauv txhua yam ntawm cov chaw taws teeb tswj mus rau moos xov tooj cua.
Nws tsis yog txog xyoo 1994 uas tus kws tshawb fawb Nyij Pooj Shuji Nakamura tuaj yeem ua kom pom lub teeb xiav LED zoo.Dawb thiab ntsuab LEDs sai sai ua raws li, tso lub hauv paus rau LED kiv puag ncig peb tau pom nyob rau hauv lub teeb pom kev zoo thiab tso saib technology.
Lub LED DISPLAY ua haujlwm li cas?
Lub LED zaub muaj ntau qhov sib ze-chaw LEDs.Los ntawm qhov sib txawv ntawm qhov ci ntawm txhua qhov LED, cov diodes sib koom ua ib daim duab ntawm cov zaub.
Txhawm rau tsim cov duab ci ci, cov ntsiab lus ntawm kev sib xyaw xim ntxiv yog siv, uas cov xim tshiab yog tsim los ntawm kev sib xyaw lub teeb hauv cov xim sib txawv.LED zaub muaj xim liab, ntsuab thiab xiav LEDs mounted nyob rau hauv ib tug ruaj qauv.Peb cov xim no ua ke los ua ib lub pixel.Los ntawm kev kho qhov kev siv ntawm diodes, ntau lab ntawm cov xim tuaj yeem tsim.Thaum koj saib ntawm lub vijtsam LED los ntawm ib qho kev ncua deb, cov array ntawm cov xim pixels pom zoo li duab.
RGB yog dab tsi?
RGB luv luv rau Liab, Ntsuab thiab Xiav.Nws yog cov qauv xim uas siv qhov tseeb tias txhua qhov pom ximtuaj yeem sib xyaw los ntawm peb qhov yooj yimxim.Nws yog siv nyob rau hauv yuav luag txhua hom kev qhia, suav nrog LED zaub.
SMD yog dab tsi?
SMD txhais tau tias Surface Mount Device.Cov no yog cov khoom siv hluav taws xob uas yog nto mounted ncaj qha rau ntawm lub rooj tsav xwm luam tawm - thiab tsis zoo li yav dhau los los ntawm soldering tus pin hlau nyob rau hauv qab ntawm lub rooj tsav xwm Circuit Court.
Hauv LED zaub thev naus laus zis, SMD lub tswv yim siv txawv me ntsis.Ib qho SMD zaub yog ib qho LED zaub qhov twg cov liab, ntsuab thiab xiav diodes yog potted nyob rau hauv ib tug me me yas encapsulation uas yog nto mounted rau cov luam Circuit Court boards ntawm cov zaub.Thaum cov diodes tau encapsulated nyob rau hauv no txoj kev, lawv siv ntau qhov chaw tsawg, ua rau nws muaj peev xwm tsim cov lus nrog tsawg qhov sib txawv ntawm cov diodes thiab ntau dua kev daws teeb meem.
Lub hwj chim loj npaum li cas siv lub teeb ci LED?
LED yog ib qho kev siv hluav taws xob zoo heev, yog li kev siv hluav taws xob txuag hluav taws xob ntau niaj hnub no.Tus nqi ntawm lub zog lub diodes nyob rau hauv ib tug LED zaub siv nyob ntawm seb hom zaub, brightness thiab kev siv.
Muaj ntau ntau hom LEDs thiab cov lus qhia.Piv txwv li, kev siv hluav taws xob ntawm cov khoom siv sab hauv tsev, piv txwv li, yuav txawv ntawm ib qho kev kos npe rau sab nraum zoov, uas yuav tsum tau pom nyob rau hauv tshav ntuj ncaj qha.Lub brightness ntawm cov zaub kuj yog ib qho tseem ceeb.Cov duab yuav tsum meej, tab sis lub teeb los ntawm cov zaub yuav tsum tsis txhob dazzle.Sab nraum zoov LED zaub yuav tsum muaj qhov ci ntsa iab nyob rau nruab hnub ntau dua li thaum tsaus ntuj.
Dab tsi tshwm sim kuj muaj kev cuam tshuam.LED qhia pom cov duab los ntawm kev qhib thiab kho qhov ci ntawm cov xim diodes.Ib daim duab dawb nkaus nrog cov ntawv dub yuav yog li ntawd yuav tsum muaj ntau lub teeb pom kev zoo dua - thiab ntau lub zog - dua li cov ntawv dawb ntawm keeb kwm yav dhau los.
LEEJ TWG YUAV UA LI CAS YUAV TSUM TAU?
Nws yog ib qho nyuaj los hais ib yam dab tsi tshwj xeeb txog lub neej ntawm LED zaub vim tias muaj ntau yam tuaj rau hauv kev ua si.Txawm li cas los xij, nrog kev saib xyuas kom raug, cov zaub tuaj yeem nyob tau ntev tshaj kaum xyoo.Ib yam li txhua yam khoom siv hluav taws xob, lub neej expectancy tseem cuam tshuam los ntawm kev siv txhua hnub thiab ib puag ncig ntawm cov zaub.Cov duab teeb pom kev zoo thiab qib siab ntawm qhov ci ntsa iab yog hnav ntau dua ntawm cov duab dua li cov duab tsaus thiab qis qis.Yam xws li cov av noo thiab ntsev cov ntsiab lus hauv huab cua kuj tuaj yeem ua si.
Nyob rau hauv lub neej ntawm LED zaub, lub teeb tso zis los ntawm lub diodes yuav ploj zuj zus.Los ntawm ntau npaum li cas nyob ntawm hom thiab tiam ntawm cov diodes.Ntau lub LED zaub yeej tsis siv lawv lub teeb tag nrho, yog li kev txo qis yuav tsis tshua muaj teeb meem.
PIXEL PITCH thiab DISPLAY RESOLUTION yog dab tsi?
Qhov kev ncua deb ntawm LED zaub lub diodes txiav txim siab qhov kev daws teeb meem ntawm cov zaub.Qhov kev ncua deb mus rau qhov chaw ntawm cov neeg nyob sib ze yog ntsuas los ntawm qhov chaw ntawm txhua pab pawg ntawm liab, ntsuab thiab xiav diodes.Qhov kev ncua deb no hu ua pixel suab.Txhua pawg ntawm diodes tsim ib pixel.
Yog tias LED zaub muaj lub pixel suab ntawm 1 cm, tej zaum yuav muaj 100 x 100 pixels ib square meter ntawm cov zaub.Qhov kev daws teeb meem ntawm cov zaub yog muab ua ob peb tus lej uas qhia qhov dav thiab qhov siab hauv pixels.Yog tias koj muaj 6 x 8-meter screen nrog 1 cm hauv pixel suab, nws muaj qhov daws teeb meem ntawm 600 x 800 pixels.
Muaj cov ntxaij vab tshaus LED nrog lub pixel suab ntawm qhov twg los ntawm ob peb centimeters mus rau ib millimeters.
Kuv yuav tsum xaiv qhov kev daws teeb meem dab tsi?
Qhov kev daws teeb meem koj xav tau rau ib qho LED zaub nyob ntawm qhov pom qhov deb.Los ntawm qhov deb npaum li cas koj cov neeg tuaj saib yuav saib cov zaub?Yog tias koj nyob ze rau qhov kev daws teeb meem qis LED zaub (nyob deb ntawm cov diodes), nws yuav nyuaj rau pom dab tsi ntawm cov zaub.
Feem ntau muaj kev sib txuas ntawm cov zaub daws teeb meem thiab tus nqi.Qhov siab dua qhov kev daws teeb meem, ntau lub diodes muaj ib m2 - thiab yog li tus nqi siab dua m2.
Yog tias koj tab tom txhim kho lub cim digital los ntawm txoj kev loj lossis ntawm lub tsev façade, nws yuav pom los ntawm qhov deb.Ntawm no, qhov kev daws teeb meem siab yuav tsis tsim nyog - thiab tsis tsim nyog kim.Yog hais tias nws yog ib qho kev nthuav qhia nyob rau hauv pem teb theem nyob rau hauv nruab nrab ntawm ib lub khw muag khoom, cov neeg tuaj saib yuav tau txais ntau ze rau nws.Ntawm no, ib qho kev daws teeb meem siab ua haujlwm zoo tshaj plaws.
Ib txoj cai zoo ntawm tus ntiv tes xoo rau cov lus qhia LED yog: 1 hli pixel suab rau txhua qhov 'meter' ntawm qhov pom kev deb.
Post lub sij hawm: Apr-05-2021