Thaum tib neeg soj ntsuam LED zaub, lawv nyiam tsom rau ntawm lub vaj huam sib luag nws tus kheej - pixel suab, ci ntsa iab, refresh npaum li cas. Tsawg tus neeg nres xav txog dab tsi tshwm sim ua ntej daim duab txawm mus txog LEDs. Cov maub los thiab cov teeb liab ua cov saw hlau yog qhov twg ntau daim duab zoo tau ua los yog poob.
Tsab ntawv xov xwm no piav qhia txog yuav ua li cas LED zaub controllers ua haujlwm, teeb liab ua dab tsi cuam tshuam nrog, thiab vim li cas cov khoom no tsim nyog tau txais kev saib xyuas thaum qhia lossis daws teeb meem ntawm cov khoom siv.
Lub LED Display Controller Ua li cas?
Lub LED zaub maub los - qee zaum hu ua daim npav xa lossis video tswj - tau txais cov teeb liab tawm tswv yim (HDMI, DVI, SDI, DisplayPort, thiab lwm yam) thiab hloov nws mus rau hauv cov ntaub ntawv hom ntawv uas LED tau txais daim npav hauv lub txee tuaj yeem nyeem thiab ua.
Hauv cov ntsiab lus yooj yim: lub hauv paus khoom siv (lub computer, media player, lossis video processor) xa cov teeb liab video. Tus maub los txhais cov teeb liab rau hauv kab thiab kab ntawm qhov ci thiab xim cov lus qhia rau txhua tus neeg LED pawg.
Yog tsis muaj kev tswj hwm kev ua haujlwm, lub vaj huam sib luag kho vajtse yog inert. Kev tsis sib haum xeeb ntawm tus tswj cov zis thiab daim npav tau txais qhov kev cia siab yog ib qho ntawm feem ntau ua rau flickering, xim banding, lossis thaj tsam dawb paug ntawm cov zaub.
Xa daim npav vs. Video processors: Qhov txawv yog dab tsi?
Ob yam no feem ntau tsis meej pem, lossis qee zaum ua ke rau hauv ib lub cuab yeej.
Xa daim npavlis cov kauj ruam kawg ntawm kev hloov dua siab tshiab - noj cov ntaub ntawv video ua tiav thiab tso tawm mus rau LED qhov system. Lawv txhais tau tias ntau npaum li cas pixels lub vijtsam tuaj yeem tsav tau, qhov siab tshaj plaws ntawm cable nyob deb, thiab kev tswj xyuas qhov rov ua haujlwm li cas.
Video processorszaum saum dej. Lawv ua haujlwm xws li:
Scaling input daws teeb meem kom phim LED canvas loj
Hloov ntawm ntau qhov chaw nkag
Kho qhov chaw xim, gamma, thiab dawb tshuav ua ntej lub teeb liab mus txog qhov xa daim npav
Hauv cov tshuab me me, daim npav xa ntawv yooj yim tuaj yeem tuav ob lub luag haujlwm txaus. Rau kev txhim kho loj lossis ruaj khov - chaw ntau pob, tshaj tawm studios, siab - pom kev muag khoom - tus txheej txheem video tshwj xeeb muab kev tswj hwm ntau dua thiab txo qhov kev pheej hmoo ntawm cov duab kos duab.
Bit Depth thiab Greyscale Processing
Ib qho ntawm tsawg dua - sib tham txog kev ua cov teeb liab yog qhov tob me ntsis.
Cov ntsiab lus feem ntau yog ua tiav ntawm 8-ntsis xim qhov tob (256 qib ib channel). Qee cov ntsiab lus tshaj lij tsom rau 10-ntsis lossis 12-ntsis. Tus maub los yuav tsum muaj peev xwm lees txais thiab ua tiav cov txheej txheem nkag mus rau qhov tob me ntsis - txo qis 10-ntsis cov ntsiab lus mus rau 8-ntsis qhia pom pom banding hauv thaj chaw du zoo li skies lossis tawv tones.
Nyob rau sab tso zis, ntau lub teeb pom kev LED ua tau zoo nyob rau hauv qhov tob me ntsis (14-ntsis lossis 16-ntsis) ua ntej tsav lub LEDs, txawm tias qhov chaw yog 8-ntsis. Qhov no ntxiv headroom tso cai rau smoother low-brightness rendering, uas yog qhov twg grayscale banding yuav pom nyob rau hauv lub tswv yim siv.
Thaum tshuaj xyuas tus tswj xyuas cov ntawv qhia tshwj xeeb, cov lus hais tias "ua qhov tob me ntsis" thiab "cov tswv yim qhov tob" yog ob qhov sib txawv. Ob leeg tseem ceeb.
Latency thiab Ncej Synchronization
Rau feem ntau zoo li qub lossis qeeb - txav cov ntsiab lus - khw muag khoom kos npe, cov ntaub ntawv boards - latency nyob rau hauv kev ua cov saw tsis muaj kev txhawj xeeb. Nws dhau los ua cuam tshuam hauv cov ntawv thov tshwj xeeb:
- Tshaj tawm hauv xov tooj cua thiab kis las: Cov neeg ua haujlwm lub koob yees duab thiab cov neeg ua haujlwm tsim khoom xav tau cov duab ntawm - npo thiab cov xwm txheej ntawm lub cev kom nyob hauv sync. Kev ua latency saum toj no kwv yees li 1-2 thav duab dhau los ua teeb meem.
- XR / LED ntim theem: Virtual ntau lawm workflows xav tau ceev heev synchronization ntawm lub koob yees duab taug qab cov ntaub ntawv thiab tshuaj ntsuam tso zis. Txawm tias me me lub sijhawm offsets ua rau pom cov khoom qub thaum lub koob yees duab txav.
- Kev sib tham sib installation: Kov lossis sensor- cov lus qhia yuav tsum xav tias teb; ceeb toom ncua lov cov neeg siv kev paub.
Thaum qhia txog cov cuab yeej siv rau cov teeb meem siv no, xyuas qhov kawg ntawm tus maub los - mus rau - kawg latency daim duab - tsis yog qhov refresh npaum li cas ntawm lub vaj huam sib luag - yog tsim nyog rau cov kauj ruam ntxiv.
Redundancy thiab Backup Signal Routing
Hauv kev ua haujlwm ruaj khov lossis lub luag haujlwm- kev teeb tsa tseem ceeb, cov tswj hwm feem ntau tau muab tso rau hauv cov khub tsis sib xws. Yog hais tias tus thawj tswj tsis ua hauj lwm, lub standby unit yuav siv sij hawm nrog tsawg heev cuam tshuam.
Redundant teeb liab routing yuav tsum tau ib co kev npaj:
- Ob lub controllers yuav tsum tau txais tib lub teeb liab input ib txhij (ntawm lub teeb liab splitter lossis tis amplifier).
- Lub sij hawm hloov pauv hloov pauv yuav tsum tau txhais hauv milliseconds - qee lub tshuab hloov nyob ze - tam sim; lwm tus muaj qhov pom kev tsaus ntuj ntawm ib mus rau ob vib nas this.
- Thaub qab fiber ntau txuas yog qee zaum siv rau kev ua haujlwm ntev cable los txo qhov kev pheej hmoo ntawm ib qho kev ua txhaum ntawm ib qho kev ua txhaum ntawm lub kaw lus.
Qhov no tsis tshua muaj kev txhawj xeeb rau kev xauj tsev ib ntus, qhov twg qhov kev sib pauv ceev ceev feem ntau tau txais. Nws yog qhov tseem ceeb tshaj plaws hauv chav tswj, kev tswj xyuas tsheb, cov ntaub ntawv hauv tshav dav hlau, thiab qhov chaw tshaj tawm.
Cov Lus Qhia Txog Kev Sib Raug Zoo
Tsis yog txhua daim npav xa tuaj ua haujlwm nrog txhua daim npav tau txais. Feem ntau cov teeb pom kev lag luam LED tsim cov txheej txheem nyob ib puag ncig ib puag ncig ib puag ncig (Novastar, Colorlight, Linsn yog cov qauv piv txwv). Kev sib xyaw ntawm cov khoom siv sib txawv ntawm cov ecosystems sib txawv yam tsis muaj kev txheeb xyuas yuav ua rau muaj teeb meem tsis sib haum xeeb.
Thaum nrhiav ib qho kev hloov pauv lossis hloov kho ib feem ntawm lub kaw lus, lees paub qhov firmware version compatibility ntawm kev xa thiab txais daim npav yog thawj kauj ruam ua tau zoo. Ib daim npav qub qub yuav tsis txhawb nqa tag nrho cov txheej txheem ntawm daim npav xa ntawv tshiab, txawm tias nyob hauv tib tsev neeg hom.
Cov ntsiab lus
Cov maub los thiab cov teeb liab ua txheej txheem yog lub hauv paus rau yuav ua li cas LED zaub ua haujlwm hauv cov xwm txheej tiag tiag. Cov vaj huam sib luag uas zoo ib yam ntawm daim ntawv tuaj yeem saib pom txawv nyob ntawm seb lub teeb liab ua tiav li cas.
Cov ntsiab lus tseem ceeb los mus tom ntej:
- Xa daim npav thiab video processors ua haujlwm sib txawv; kev teeb tsa loj dua feem ntau xav tau ob qho tib si.
- Kev tuav me ntsis qhov tob cuam tshuam rau kev ua haujlwm gradient smoothness thiab qis - teeb ua haujlwm.
- Latency tseem ceeb hauv kev tshaj tawm, kev tsim khoom virtual, thiab kev sib tham sib tham.
- Kev npaj rov ua dua tiv thaiv ib qho ntawm qhov tsis ua tiav hauv kev teeb tsa mus tas li.
- Ecosystem compatibility ntawm kev xa thiab txais daim npav yuav tsum tau lees paub ua ntej sib xyaw khoom siv.