1. LED yog dab tsi?
LED yog lub ntsiab lus ntawm lub teeb emitting diode. Lub hauv paus ntsiab lus ntawm LED luminescence thev naus laus zis yog tias qee yam khoom siv semiconductor yuav tawm lub teeb ntawm ib lub wavelength tshwj xeeb thaum siv tam sim no. Hom hluav taws xob no rau lub teeb hloov dua siab tshiab yog siab heev. Ntau yam kev kho tshuaj tuaj yeem ua rau ntawm cov ntaub ntawv siv kom tau txais ntau yam ci ntsa iab. Thiab saib lub kaum sab xis LED. Nws yog ib qho screen uas qhia cov ntawv nyeem, duab, duab, animation, lag luam quotations, yeeb yaj duab, video signals thiab lwm yam ntaub ntawv los ntawm kev tswj cov zaub hom ntawm semiconductor lub teeb-emitting diodes.
2. LED cov ntxaij vab tshaus muaj xws li cov hauv qab no.
Tag nrho xim LED zaub . Cov xim puv kuj tseem hu ua peb xim thawj, cov khoom me me uas muaj peb lub ntsiab xim liab, ntsuab, thiab xiav. Tag nrho cov xim LED screen yog tsuas yog siv nyob rau hauv tshav dav hlau, railway chaw nres tsheb, xinesmas, khw malls thiab theem.
Dual xim LED zaub. Dual xim LED zaub feem ntau muaj xim liab & ntsuab, liab & xiav. Ntawm lawv, liab & ntsuab yog cov feem ntau. Dual xim qhia tau siv dav hauv nyiaj txiag, kev sib txuas lus, tsev kho mob, kev ruaj ntseg pej xeem, khw khw, nyiaj txiag thiab se.
Ib qho LED zaub. Ib qho xim LED zaub muaj xim liab, daj, ntsuab, xiav, dawb. Ib qho xim LED zaub yog siv hauv cov chaw ua si, chaw nres tsheb thiab cov khw muag khoom.
Nrog rau kev txhim kho kev ua neej nyob, tib neeg cov kev xav tau nce ntxiv. Tib xim thiab dual xim LED cov lus tau maj mam hloov los ntawm cov xim puv xim LED.
3. Lub hauv paus muaj pes tsawg leeg ntawm cov zaub.
LED zaub screen yog tsim los ntawm LED txee (yuav tsum tau spliced) thiab controllers card (sender card thiab txais daim card). Yog li ntawd, tsim kom muaj nuj nqis tswj thiab cov txee LED tuaj yeem ua qhov sib txawv me me LED zaub kom tau raws li qhov xav tau ntawm cov chaw sib txawv thiab cov khoom siv sib txawv.
4. LED npo dav dav tsis.
Ib. Lub cev ntsuas
Pixel suab
Qhov kev ncua deb ntawm qhov chaw ntawm cov pixels uas nyob ib sab. (Unit: hli)
Qhov ntom
Tus naj npawb ntawm pixels ib cheeb tsam (unit: dots / m2). Muaj qee qhov kev sib raug zoo ntawm cov lej ntawm pixels thiab qhov deb ntawm pixels.
Cov mis laij lej yog, ceev = (1000/pixel center nrug).
Qhov siab dua qhov ceev ntawm lubLED zaub, qhov clearer daim duab thiab qhov me me qhov zoo tshaj plaws saib nyob deb.
Flatness
Qhov sib txawv tsis sib xws ntawm pixels thiab LED modules thaum tsim lub vijtsam LED. Qhov zoo flatness ntawm LED zaub screen tsis yooj yim ua rau cov xim ntawm LED screen tsis sib xws thaum saib.
Ob. Cov ntsuas hluav taws xob ua haujlwm
Grey nplai
Cov qib ci ci uas tuaj yeem paub qhov txawv ntawm qhov tsaus ntuj mus rau qhov ci tshaj plaws nyob rau tib theem ntawm qhov ci ntawm LED zaub. Grey scale tseem hu ua xim nplai lossis grey nplai, uas yog hais txog qhov ci ci. Rau cov thev naus laus zis thev naus laus zis, greyscale yog qhov txiav txim siab rau tus naj npawb ntawm cov xim pom. Feem ntau hais lus, qhov siab dua ntawm qib grey, cov xim ntau dua, cov duab zoo dua, thiab nws yooj yim dua los qhia cov ntsiab lus nplua nuj.
Cov qib grey feem ntau yog nyob ntawm qhov system A / D hloov khoom siv. Feem ntau muab faib ua tsis muaj grayscale, 8, 16, 32, 64, 128, 256 qib thiab lwm yam, Qhov siab dua qhov grey qib ntawm LED zaub, cov xim nplua nuj, thiab cov xim ci dua.
Tam sim no, LED zaub feem ntau siv 8-ntsis ua qhov system, uas yog, 256 (28) qib grey. Qhov kev nkag siab yooj yim yog tias muaj 256 qhov ci hloov pauv ntawm cov xim dub rau dawb. Siv peb lub ntsiab xim ntawm RGB tuaj yeem tsim 256 × 256 × 256 = 16777216 xim. Qhov ntawd yog feem ntau hu ua 16 mega xim.
Refresh frame zaus
LED zaub LED zaub npo cov ntaub ntawv hloov tshiab zaus.
Feem ntau, nws yog 25Hz, 30Hz, 50Hz, 60Hz, thiab lwm yam. Qhov siab dua ntawm cov ncej hloov zaus, qhov zoo dua qhov txuas ntxiv ntawm cov duab hloov.
Hloov tshiab zaus
LED zaub qhia cov naj npawb ntawm cov ntaub ntawv rov qab tso tawm ib ob.
Nws feem ntau yog 960Hz, 1920Hz, 3840Hz, thiab lwm yam. Qhov siab dua qhov refresh npaum li cas, qhov ruaj khov ntawm cov duab zaub. Thaum yees duab, txawv refresh npaum li cas muaj qhov sib txawv loj.
5. Zaub system
LED video phab ntsa system yog tsim los ntawm peb qhov chaw, teeb liab qhov chaw, tswj qhov system thiab LED zaub.
Control system lub luag haujlwm tseem ceeb yog teeb liab nkag, hloov dua siab tshiab, txheej txheem, kis tau tus mob thiab tswj cov duab.
Led screen qhia cov ntsiab lus ntawm lub teeb liab qhov chaw.
Post lub sij hawm: Dec-10-2021
