Lub refresh npaum li cas thiab greyscale qib ntawm ib qho screen LED zaub yog cov tseem ceeb tsis cuam tshuam rau nws cov nyhuv zaub. Lawv lub ntsiab lus tshwj xeeb thiab kev ua haujlwm yog raws li hauv qab no:
I. Refresh Rate (Visual Refresh Rate)
Lus Txhais: Hais txog tus nqi ntawm qhov kev tshuaj ntsuam duab hloov tshiab, ntsuas hauv Hertz (Hz), uas sawv cev rau tus naj npawb ntawm lub sij hawm cov duab tshiab ib ob.
Muaj nuj nqi thiab cuam tshuam:
* Image Stability: Qhov siab dua qhov refresh npaum li cas, qhov ruaj khov ntawm cov duab tso saib thiab qhov muag pom tsawg dua. Piv txwv li, siab -kev ua tau zoo LED cov lus qhia feem ntau muaj qhov ntsuas siab dua 3000Hz, zam kev flicker uas pom tau rau tib neeg lub qhov muag.
* Qhov muag xis nyob: Txawm hais tias tib neeg lub qhov muag tuaj yeem pom cov duab txuas ntxiv ntawm qhov ntsuas tshiab siab tshaj 60Hz, qhov siab dua refresh npaum li cas (xws li saum toj 1000Hz) tuaj yeem txo qhov muag pom ntxiv, tshwj xeeb tshaj yog thaum lub sijhawm saib ntev lossis nrawm dua - cov duab txav.
* Lub Koob Yees Duab Ua Tau Zoo: Hauv siab -Kev yees duab nrawm lossis yees duab, qhov qis qis tuaj yeem ua rau kab kab kab rov tav lossis xim banding flickering hauv daim duab. Piv txwv li, thaum shooting nrog lub siab shutter ceev (xws li 1/1000s), ib tug siab refresh npaum li cas (xws li saum toj no 3000Hz) xyuas kom meej tias cov duab yog dawb ntawm dub scan kab los yog xim banding.
Kev pheej hmoo rau kev noj qab haus huv: Kev saib lub sijhawm ntev ntawm cov ntxaij vab tshaus uas tsis tshua muaj kev hloov tshiab (xws li, qis dua 60Hz) tuaj yeem ua rau qhov muag tsis pom kev thiab txawm tias puas tsuaj.
II. Greyscale Qib
Lus Txhais: Greyscale yog hais txog tus naj npawb ntawm qhov ci ntsa iab LED zaub tuaj yeem nthuav tawm los ntawm qhov tsaus ntuj tshaj plaws rau qhov ci tshaj plaws hauv ib qho xim channel (xws li, liab, ntsuab, xiav), feem ntau qhia hauv cov khoom. Piv txwv li, 14-ntsis grayscale sib raug rau 16384 (21?) brightness theem.
Muaj nuj nqi thiab cuam tshuam:
Xim Kev Ua Haujlwm: Ntau qib greyscale ua rau cov xim hloov tau zoo dua thiab nthuav dav dua. Piv txwv li, siab -kev ua tau zoo LED cov lus qhia feem ntau muaj qib grey ntawm 14 cov khoom lossis siab dua, uas tuaj yeem tsim cov xim gradations ntawm ib zaj duab xis.
Duab Zoo: Tsis txaus grayscale tuaj yeem ua rau xim banding lossis gradations tsis zoo. Piv txwv li, qis -cov lus qhia ua tau zoo tuaj yeem pom cov xim thaiv tau pom ntawm qhov nrawm ntawm 1/500s, thiab qhov teeb meem tau tshaj tawm ntawm qhov nrawm dua (piv txwv li, 1/2000s).
Dynamic Range: Cov qib grey nplais siab txhawb qhov dav dav dav, tso cai rau kev ua kom pom tseeb ntawm ob qho tib si tsaus nti thiab cov ntsiab lus ci ntsa iab, txhim kho peb -dimensionality ntawm daim duab.
III. Synergistic nyhuv
Zuag qhia tag nrho cov nyhuv: Refresh tus nqi thiab qib greyscale ua ke txiav txim siab qhov ua tau zoo kawg ntawm lub vijtsam LED zaub. High refresh npaum li cas kom ntseeg tau tias flicker- cov duab dawb, thaum qib greyscale siab lav cov xim ilv; ob leeg yog indispensable.
Application Scenario:
Command Centers/Monitoring Centers: Yuav tsum muaj cov ntaub ntawv ruaj khov ntawm cov ntaub ntawv zoo li qub lossis cov dynamic rau lub sijhawm ntev. High refresh npaum li cas (piv txwv li, 3000Hz thiab siab dua) thiab siab greyscale qib (14 ntsis thiab siab dua) tiv thaiv qhov pom kev qaug zog thiab qhia meej meej.
Studios/Stage Backgrounds: Yuav tsum tau sib haum nrog siab -kev yees duab ceev thiab kev hloov xim nyuaj. High- parameter configurations xyuas kom scan- kab- cov duab dawb thiab cov xim zoo nkauj, ua tau raws li qhov xav tau ntawm kev tshaj tawm hauv xov tooj lossis kaw.
IV. Technical Standards Reference
High-Cov Qauv Ua Haujlwm Zoo:
Refresh Rate: Ntau dua lossis sib npaug rau 3000Hz
Qib Greyscale: Ntau dua lossis sib npaug rau 14 ntsis (16384 xim xim)
Teeb meem nrog qis-Kev ua haujlwm tau zoo:
Tsis txaus Refresh Rate: Kab rov tav kab txaij tshwm sim thaum kaw video, ua rau qhov muag nkees.
Tsis txaus grayscale qib: pom tseeb xim banding thiab cov duab tsis zoo.
Cov ntsiab lus: Refresh tus nqi thiab qib greyscale yog qhov tseem ceeb ntawm kev ua tau zoo rau cov lus qhia LED: yav dhau los cuam tshuam rau cov duab ruaj khov thiab lub koob yees duab sib raug zoo, thaum tom kawg txiav txim siab xim luam tawm thiab nthuav dav. Thaum yuav khoom, xaiv siab - cov khoom parameter raws li qhov xav tau siv (xws li, txawm tias siab - yuav tsum tau yees duab nrawm lossis ntev saib yog xav tau) kom ntseeg tau tias kev tshaj lij - qib zaub zoo.
