Cov cim tseem ceeb uas cuam tshuam qhov zoo ntawm tag nrho - xim LED zaub screen yog raws li hauv qab no:
1. Tus nqi ua tsis tiav: Ib qho puv - xim zaub screen muaj kaum tawm txhiab, lossis txawm ntau pua txhiab, liab, ntsuab, thiab xiav LED pixels. Qhov tsis ua haujlwm ntawm ib qho LED ncaj qha cuam tshuam rau tag nrho cov kev pom pom. Raws li kev lag luam kev paub, ua ntej sib dhos thiab xa khoom xa tuaj tom qab 72 teev ntawm kev laus, tus nqi tsis ua haujlwm vim cov khoom siv LED nws tus kheej yuav tsum tsis pub tshaj 3/10000. Qhov ntsuas no ncaj qha qhia txog kev tswj cov khoom zoo hauv cov txheej txheem tsim khoom; qhov qis dua qhov tsis ua hauj lwm tus nqi, qhov siab dua qhov ruaj khov thiab kev ntseeg siab ntawm lub vijtsam zaub.
2. Kev tiv thaiv- muaj peev xwm zoo li qub: Raws li cov khoom siv hluav taws xob semiconductor, LEDs nkag siab rau hluav taws xob zoo li qub. Tsis muaj hluav taws xob zoo li qub tuaj yeem ua rau kev ua haujlwm tsis zoo lossis ua tiav kev puas tsuaj. Anti- muaj peev xwm zoo li qub yog ntsuas los ntawm qhov tsis ua haujlwm voltage hauv electrostatic tawm hom kev sim, feem ntau yuav tsum muaj qhov tsis ua haujlwm tsis tsawg dua 2000V. Kev tiv thaiv siab dua - qhov ntsuas zoo li qub tuaj yeem txuas ntxiv lub neej ntawm lub vijtsam zaub, tshwj xeeb yog qhov tseem ceeb hauv qhov chaw qhuav lossis qhov xwm txheej nrog kev sib cuag.
3. Consistency: Lub brightness thiab xim uniformity ntawm ib tug tag nrho - xim zaub screen nyob ntawm qhov parameter tsis sib xws ntawm LEDs liab, ntsuab, thiab xiav:
Wavelength Range: Cov khoom siv feem ntau yuav tsum tau muab cov LEDs nrog qhov sib txawv wavelength tsis tshaj 5nm los xyuas kom meej xim sib xws.
Brightness Range: Lub brightness ratio yuav tsum tau tswj nyob rau hauv 1: 1.3, ua tiav los ntawm spectrometer grading.
Voltage Consistency: Feem ntau tsis tas yuav tsum tau, raws li qhov hloov pauv voltage muaj qhov cuam tshuam me me rau cov khoom zoo. Kev tsis sib xws tsis txaus tuaj yeem ua rau cov xim thaiv lossis qhov ci tsis sib xws ntawm qhov screen.
IV. Brightness: LED ci ci yog qhov tseem ceeb ntawm kev txiav txim siab qhov ci ntawm lub vijtsam zaub, yuav tsum muaj qhov sib npaug ntawm cov hauv qab no:
Tam sim no Margin: Ntau dua qhov ci ntsa iab yuav tsum muaj qhov loj dua tam sim no, uas yuav pab txo qis kev siv hluav taws xob thiab txhim kho kev ruaj ntseg.
Saib lub kaum ntse ntse thiab ci ntsa iab: Lub kaum sab xis LED me me ua rau muaj qhov ci dua, tab sis txo qhov pom lub kaum ntse ntse. LEDs nrog 100-degree emission lub kaum sab xis yog feem ntau xaiv kom sib npaug qhov ci thiab saib lub kaum sab xis.
Pixel Pitch thiab Saib Distance: Xaiv qhov tsim nyog pixel suab raws li qhov pom qhov deb ntawm daim ntawv thov scenario kom ua tiav qhov kev daws teeb meem zoo ntawm qhov ci, lub kaum sab xis, thiab tus nqi.
V. Attenuation yam ntxwv: LED brightness maj mam txo lub sij hawm. Tus nqi ntawm attenuation yog cuam tshuam los ntawm nti zoo, cov ntaub ntawv pabcuam, thiab cov txheej txheem ntim khoom:
Attenuation Standard: Tom qab 1000 teev ntawm qhov kub thiab txias teeb pom kev zoo ntawm 20mA, LEDs liab yuav tsum attenuate tsawg dua 10%, thiab xiav thiab ntsuab LEDs tsawg dua 15%.
Kev cuam tshuam ntawm White Balance: Qhov sib xws ntawm cov xim liab, ntsuab, thiab xiav xim attenuation yog qhov tseem ceeb rau kev tshuav dawb ntawm lub vijtsam tom qab siv ntev -. Ntau qhov sib txawv ntawm attenuation tuaj yeem ua rau xim hloov thiab txo cov duab fidelity.
Cov lus qhia saum toj no qhia meej txog qib zoo ntawm tag nrho -xim LED zaub screen nyob rau hauv cov nqe lus ntawm kev ntseeg siab, durability, zaub uniformity, brightness kev ua tau zoo, thiab ntev -lub sij hawm stability. Thaum yuav khoom, nws yog ib qho tsim nyog yuav tsum ntsuas cov ntsuas no ua ke nrog cov ntawv thov tshwj xeeb scenario.
