Raws li peb txhua tus paub, LED teeb hlaws hlaws yog ib feem tseem ceeb ntawm LED zaub screen, yog li dab tsi cuam tshuam cov teeb hlaws sib txawv ntawm lub vijtsam? Winbond Ying Optoelectronics tam sim no yuav qhia rau koj txog qhov tseem ceeb ntawm LED teeb hlaws dai ntawm LED zaub.
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1. Kev xav
Lub kaum sab xis saib ntawm LED zaub yog txiav txim siab los ntawm lub kaum sab xis saib ntawm LED teeb hlaws. Tam sim no, sab nraum zoov feem ntau siv elliptical LEDs nrog kab rov tav saib lub kaum sab xis ntawm 100 degree thiab ntsug saib lub kaum sab xis ntawm 50 degree, thaum sab hauv tsev siv SMD LEDs nrog kab rov tav thiab ntsug saib lub kaum sab xis ntawm 120 degree. Lub vijtsam zaub ntawm txoj kev loj feem ntau xaiv 30 degree vim nws qhov tshwj xeeb; ib puag ncig LED nrog lub kaum sab xis saib yog txaus. Qee cov ntxaij vab tshaus siab siab muaj qhov xav tau siab dua rau kev saib cov kaum sab xis. Saib lub kaum sab xis thiab ci ntsa iab yog qhov tsis sib haum xeeb rau ib leeg, thiab lub kaum sab xis pom loj yuav ua rau txo qis qhov ci. Kev xaiv qhov kev xav yuav tsum tau txiav txim siab raws li lub hom phiaj tshwj xeeb.
2. Kev ci ntsa iab
LED ci ntsa iab yog qhov tseem ceeb ntawm kev txiav txim siab ntawm cov duab ci. Qhov siab dua qhov ci ntsa iab ntawm LED, qhov ntau dua cov npoo rau kev siv tam sim no, uas yog qhov zoo rau kev txuag hluav taws xob thiab ua kom lub LED ruaj khov. LEDs muaj lub kaum ntse ntse sib txawv. Thaum lub ci ci ntawm lub nti yog tsau, lub kaum sab xis me dua, lub teeb ci dua LED, tab sis qhov pom lub kaum sab xis me dua ntawm cov zaub. Feem ntau, ib tug 100-degree LED yuav tsum raug xaiv los xyuas kom meej txaus saib lub kaum sab xis ntawm lub vijtsam. Rau cov lus qhia nrog qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov pom, qhov sib npaug yuav tsum pom nyob rau hauv qhov ci, lub kaum sab xis, thiab tus nqi.
3. Tus nqi ua tsis tiav
Txij li thaum lub vijtsam puv xim yog tsim los ntawm kaum tawm txhiab lossis txawm ntau pua txhiab tus liab, ntsuab, thiab xiav LEDs, qhov tsis ua haujlwm ntawm ib qho xim LED yuav cuam tshuam rau tag nrho cov kev pom ntawm lub vijtsam. Feem ntau hais lus, raws li kev paub dhau los ntawm kev lag luam, qhov tsis ua haujlwm ntawm LED zaub screen txij thaum pib sib dhos mus rau cov laus 72 teev ua ntej cov khoom xa tuaj yuav tsum tsis pub ntau tshaj peb kaum txhiab (hais txog qhov ua tsis tiav los ntawm LED teeb hlaws nws tus kheej).
4. Antistatic muaj peev xwm
LED yog cov khoom siv hluav taws xob semiconductor, uas nkag siab rau hluav taws xob zoo li qub thiab tuaj yeem ua rau tsis zoo li qub. Yog li ntawd, lub peev xwm antistatic tseem ceeb heev rau lub neej ntawm lub vijtsam zaub. Feem ntau hais lus, qhov tsis ua hauj lwm voltage ntawm tib neeg lub cev electrostatic hom kev sim ntawm LED yuav tsum tsis txhob qis dua 2000V.
5. Lub neej
Lub neej theoretical lub neej ntawm cov khoom siv LED yog 100, 000 teev, uas ntev npaum li lub neej ua haujlwm ntawm lwm qhov ntawm LED zaub. Yog li ntawd, ntev npaum li qhov zoo ntawm cov cuab yeej LED tau lees paub, kev ua haujlwm tam sim no yog qhov tsim nyog, PCB tshav kub dissipation tsim yog qhov tsim nyog, thiab cov txheej txheem kev tsim cov khoom lag luam yog nruj, cov khoom siv LED yuav yog tag nrho cov zaub screen. Ib qho ntawm cov khoom siv ruaj khov tshaj plaws hauv lub tshuab.
Cov khoom siv LED suav txog 70 feem pua ntawm cov nqi ntawm cov lus qhia LED, yog li cov khoom siv LED tuaj yeem txiav txim siab qhov zoo ntawm LED zaub. kuv lub teb chaws tsis yog tsuas yog tus tsim khoom loj ntawm cov khoom siv LED, tab sis kuj yog ib qho chaw sib sau ua ke rau LED zaub raug tsim. Cov kev xav tau high-tech ntawm LED zaub yog qhov kev txhim kho yav tom ntej. Cov kev xav tau zoo ntawm LED zaub tsis yog tsuas yog hais txog cov qauv ntawm LED cov tuam txhab lag luam, tab sis kuj tseem tsim cov khoom lag luam LED zaub. Los ntawm kev tswj cov khoom siv LED, los txhawb Tuam Tshoj txoj kev hloov pauv los ntawm cov khoom lag luam LED loj hauv lub teb chaws mus rau lub zog LED zaub tsim lub teb chaws.
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6. Attenuation yam ntxwv
LED cov ntxaij vab tshaus yuav tshwm sim brightness poob thiab tso saib xim inconsistency tom qab lub sij hawm ua hauj lwm ntev, uas yog feem ntau tshwm sim los ntawm lub brightness lwj ntawm LED li. Lub attenuation ntawm lub brightness ntawm LED yuav ua rau lub brightness ntawm tag nrho cov screen yuav txo. Qhov tsis sib xws ntawm qhov ci ntsa iab ntawm cov xim liab, ntsuab, thiab xiav LEDs yuav ua rau cov xim ntawm LED zaub tsis sib xws, uas yog qhov tshwm sim uas peb feem ntau hais tias cov khoom siv. Cov khoom siv zoo LED tuaj yeem tswj tau qhov ci ntsa iab ntau yam. Raws li tus qauv ntawm 20mA teeb pom kev zoo ntawm chav tsev kub rau 1000 teev, liab attenuation yuav tsum tsawg dua 2 feem pua, xiav thiab ntsuab attenuation yuav tsum tsawg tshaj li 10 feem pua, yog li xiav thiab ntsuab LEDs yuav tsum tsis txhob siv 20mA tam sim no thaum tsim cov zaub, nyiam dua. tsuas yog 70 feem pua rau 80 feem pua ntawm cov ntsuas tam sim no.
Cov yam ntxwv attenuation tsis yog tsuas yog cuam tshuam nrog cov yam ntxwv ntawm cov xim liab, ntsuab, thiab xiav LEDs, tab sis kuj tseem siv tam sim no, kev tsim hluav taws xob hluav taws xob ntawm PCB pawg thawj coj saib, thiab qhov ntsuas kub ntawm qhov screen.
7. Loj
Qhov luaj li cas ntawm cov khoom siv LED cuam tshuam rau pixel point nrug ntawm LED zaub screen, uas yog, kev daws teeb meem. Lub 5 hli oval teeb yog tsuas yog siv rau sab nraum zoov cov ntxaij vab tshaus saum P16, lub 3 hli oval teeb yog tsuas yog siv rau sab nraum zoov cov ntxaij vab tshaus ntawm P12.5, P12, P10, thiab 3528 SMD LED yog tsuas yog siv rau sab hauv tsev cov ntxaij vab tshaus ntawm P6 thiab P8. . 2020-hom SMD LEDs yog siv rau sab hauv tsev xws li P2 thiab P3. Nyob rau hauv lub premise tias lub dot pitch yog tas li, qhov luaj li cas ntawm LED ntaus ntawv yuav nce, uas yuav ua rau kom cov zaub cheeb tsam thiab txo cov graininess, tab sis vim hais tias cov dub cheeb tsam yog txo, qhov sib piv yuav raug txo; ntawm qhov tsis sib xws, LED loj yog txo, qhov chaw tso saib yog txo, thiab cov graininess yog nce. , Lub cheeb tsam dub yog loj, ua rau qhov sib txawv.
8. Kev sib raug zoo
Cov zaub puv xim yog tsim los ntawm suav tsis txheeb liab, ntsuab, thiab xiav LEDs. Lub brightness thiab wavelength sib xws ntawm txhua xim LED txiav txim siab qhov ci ci sib xws, qhov sib npaug ntawm cov xim dawb thiab chromaticity ntawm tag nrho cov zaub. poj niam deev. Feem ntau hais lus, cov chaw tsim khoom lag luam xav tau cov khoom siv los muab cov LEDs nrog lub wavelength ntawm 5nm thiab qhov ci ci ntawm 1: 1.3. Cov ntsuas no tuaj yeem ua tiav los ntawm cov khoom siv los ntawm kev muab qhab nia ntawm lub tshuab spectroscopy. Qhov sib xws ntawm qhov voltage feem ntau tsis tas yuav tsum tau.
