Nrog rau kev nce qib ntawm cov xim puv xim LED zaub thev naus laus zis, dot pitch tau dhau los ua me thiab me. Cov khoom lag luam me me LED tau dhau los ua cov khoom lag luam tsim nyog hnub qub, thiab lawv cov ntawv thov kev lag luam tau nthuav dav sai. Raws li kev pom zoo ntawm kev lag luam, cov xim puv xim LED nrog lub suab qis dua 2.5 hli yog qhov me me-pitch LED zaub. Feem ntau xaiv qhov me me-pitch full-xim LED zaub, uas tuaj yeem txiav txim siab los ntawm cov hauv qab no:
Yuav puv xim coj zaub
Ua tib zoo saib cov hauv qab no hauv kev xaiv thiab siv cov xim me me-pitch puv xim LED zaub:
1. Lub tshuab filling yuav tsum siab
Cov khoom sau (FillFactor) ntawm cov xim puv xim LED tseem hu ua qhov sib piv ntawm thaj chaw kaj, uas yog, qhov sib piv ntawm lub teeb-emitting cheeb tsam ntawm txhua pixel rau thaj tsam ntawm lub cev nyob hauv pixel. Cov zaub puv xim LED yog tsim los ntawm cov pixels tsis sib xws, thiab muaj qhov pom tseeb uas tsis yog-luminous dub cheeb tsam ntawm pixels. Thaum saib ntawm qhov ze, daim duab tsis sib xws thiab tsis tiav, thiab qhov ci tsis sib xws ua rau graininess. Yog hais tias lub teeb-emitting qhov chaw yog txwv rau ib tug me me pixel nto cheeb tsam, yog li ntawd lub brightness ntawm ib pixel yog ob peb zaug los yog txawm kaum lub sij hawm lub brightness ntawm tag nrho cov screen, nws yuav ua rau ib tug loj glare. Tus qauv TCO'99 tau lees paub los ntawm kev lag luam vaj huam sib luag vaj huam sib luag tau teev tseg tias cov khoom ntim yuav tsum tsis pub tsawg dua 50 feem pua. Tam sim no, qhov tseem ceeb ntawm ntau cov xim puv LED ntawm lub khw tsis ua raws li qhov ntsuas no. Cov yam ntxwv ntawm kev txiav tawm ntawm TV lub lim dej qis kuj tseem cuam tshuam ncaj qha rau qhov tsim nyog tua ntawm cov xim puv xim LED nrog cov khoom sib txawv.
Cov xim puv xim LED nrog tib lub dot pitch muaj ntau attenuation tshaj qhov loj filling, yog li qhov kev ncua deb yuav tsum tau nce. Yog hais tias lub kaw lus low-pass lim passband yog 4MHz thiab cov yam ntxwv ntawm qhov siab-frequency attenuation yog 12db / octave, tom qab ntawd qhov kev sib tw nrog cov khoom sau ntawm 25 feem pua yuav attenuate 1.15db ntau tshaj qhov uas muaj qhov ntim ntawm 50 feem pua, thiab shooting nrug yuav tsum tau nce li ntawm 10 feem pua. Kev txhim kho ntawm qhov ua kom tiav ua rau pom lub kaum ntse ntse ntawm cov xim puv xim LED dav dua thiab cov xim sib xyaw yog qhov zoo tshaj plaws, uas kov yeej lub ntsej muag ntawm cov pixels, thiab tseem tsim cov xwm txheej kom tsim nyog nce qhov ci ntawm tag nrho lub vijtsam kom tau txais. tau zoo dua.
2. Cov xim kub tuaj yeem hloov kho
Xim Temperature (ColorTemperature) yog qhov ntsuas kub txiav txim los ntawm kev sib piv cov duab ntawm cov emission spectrum ntawm lub emitter nrog cov duab ntawm qhov zoo tshaj plaws-haum blackbody emission spectrum. Thaum tag nrho-xim LED zaub yog siv los ua keeb kwm yav dhau hauv lub studio, nws cov xim kub yuav tsum zoo ib yam nrog cov xim kub ntawm lub teeb nyob rau hauv lub studio, yog li ntawd cov xim muaj tseeb tuaj yeem tau txais thaum tua. Raws li qhov xav tau ntawm qhov kev zov me nyuam, lub teeb pom kev hauv studio qee zaum siv 3200K qis xim kub teeb, qee zaum 5600K siab xim kub teeb, thiab LED zaub yuav tsum tau hloov kho rau cov xim sib xws kom tau txais txiaj ntsig zoo.
3. Qhov deb ntawm kev tua yuav tsum tsim nyog
Raws li tau hais nyob rau hauv kev sib tham yav dhau los ntawm dot pitch thiab filling qhov tseem ceeb, qhov tsim nyog tua nyob deb rau tag nrho cov xim LED zaub nrog txawv dot pitches thiab txawv filling yam txawv. Qhov kev ncua deb ntawm tus neeg raug yees duab thiab lub vijtsam yog qhov tsim nyog yuav tsum yog 4-10 meters, yog li koj tuaj yeem tau txais daim duab tom qab zoo dua thaum tua neeg. Yog tias tus neeg nyob ze dhau ntawm qhov screen, thaum tua cov kev txhaj tshuaj ze, cov keeb kwm yav dhau yuav tshwm sim, thiab nws yooj yim los tsim moiré cuam tshuam.
4. Ua kom qhov chaw siv tau zoo
Thaum lub sij hawm kev pab cuam lub neej ntawm cov khoom, qhov tsis ua hauj lwm tus nqi yog tsawg tsuas yog nyob rau hauv tsim nyog ua hauj lwm tej yam kev mob. Raws li cov khoom siv hluav taws xob sib xyaw ua ke, cov xim puv xim LED feem ntau yog tsim los ntawm pawg tswj hwm nruab nrog cov khoom siv hluav taws xob, hloov hluav taws xob, thiab lub teeb pom kev zoo. Lub neej thiab kev ruaj ntseg ntawm tag nrho cov khoom no muaj feem xyuam nrog kev ua haujlwm kub. Yog hais tias qhov tseeb ua hauj lwm kub tshaj qhov kev siv ntau yam ntawm cov khoom, tsis tsuas yog nws lub neej ncua yuav luv luv, tab sis cov khoom nws tus kheej kuj yuav raug mob hnyav. Tsis tas li ntawd, kev hem thawj ntawm cov plua plav tsis tuaj yeem tsis quav ntsej. Ua haujlwm nyob rau hauv ib puag ncig plua plav, vim tias PCB nqus cov plua plav, thiab cov plua plav pov tseg yuav cuam tshuam rau cov cua sov ntawm cov khoom siv hluav taws xob, uas yuav ua rau qhov kub ntawm cov khoom nce, thiab tom qab ntawd cov thermal stability yuav txo qis los yog ua rau hluav taws xob. , uas tuaj yeem ua rau kub hnyiab hauv qhov mob hnyav. Cov plua plav tseem yuav nqus cov dej noo, uas yuav ua rau cov hluav taws xob tawg thiab ua rau cov teeb meem luv luv uas tsis yooj yim rau kev daws teeb meem. Ua tib zoo saib xyuas lub studio kom huv si.
Kev kho dua tshiab ntawm lub studio yuav tsim cov plua plav ntau, yog li nws yog qhov tsim nyog los tiv thaiv tag nrho cov xim LED ua ntej.
Tom qab ntawd, thaum yuav khoom me me-pitch LED, dab tsi yog cov ntsiab lus tseem ceeb uas cov neeg siv yuav tsum tau ua tib zoo saib txhawm rau txhawm rau ua kom tau txais txiaj ntsig zoo tshaj plaws thaum ua tau raws li qhov xav tau ntawm kev siv?
1. "Low brightness thiab siab grey" yog qhov chaw:
Raws li lub davhlau ya nyob twg, ib qho me me-pitch full-xim LED zaub yuav tsum xub xyuas kom pom kev nplij siab. Yog li ntawd, thaum yuav khoom, qhov kev txhawj xeeb tseem ceeb yog qhov teeb meem ci ntsa iab. Cov kev tshawb fawb cuam tshuam tau pom tias, nyob rau hauv cov nqe lus ntawm tib neeg lub qhov muag rhiab heev, LED ua lub teeb pom kev zoo muaj ob npaug ntawm qhov ci ci ntawm qhov chaw teeb pom kev zoo (projectors thiab kua siv lead ua kua). Txhawm rau kom muaj kev nplij siab ntawm tib neeg lub qhov muag, me me-puab puv xim LEDs Qhov ci ci ntawm cov zaub tsuas yog nyob nruab nrab ntawm 100cd/m2-300 cd/m2.
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Txawm li cas los xij, nyob rau hauv ib txwm muaj xim puv xim LED zaub thev naus laus zis, txo qhov ci ntawm lub vijtsam yuav ua rau poob ntawm greyscale, thiab qhov poob ntawm greyscale yuav cuam tshuam ncaj qha rau daim duab zoo. Yog li ntawd, qhov kev txiav txim siab tseem ceeb rau kev ua tau zoo me me-pitch full-xim LED zaub Tus qauv yog kom ua tiav "qis brightness thiab siab grey" kev qhia. Hauv kev yuav khoom tiag tiag, cov neeg siv tuaj yeem ua raws li lub hauv paus ntsiab lus ntawm "qhov ntau qhov ci ci tuaj yeem lees paub los ntawm tib neeg lub qhov muag, qhov zoo dua". Qhov ci ci yog hais txog qhov ci ci ntawm cov duab uas tib neeg lub qhov muag tuaj yeem paub qhov txawv ntawm qhov tsaus ntuj tshaj plaws mus rau qhov dawb tshaj plaws. Qhov ntau dua qhov pom qhov ci ci, qhov loj dua qhov chaw xim gamut ntawm lub vijtsam zaub, thiab lub peev xwm ntau dua rau kev nthuav tawm cov xim nplua nuj.
2. Thaum xaiv qhov sib txawv ntawm qhov taw tes, xyuam xim rau qhov sib npaug ntawm "kev cuam tshuam thiab thev naus laus zis"
Piv nrog rau cov tshuaj ntsuam LED ib txwm muaj, qhov zoo tshaj plaws ntawm qhov me me-pitch full-xim LED zaub yog lub suab me me. Hauv kev siv cov tswv yim, qhov me me ntawm qhov taw qhia, qhov siab dua pixel ceev, cov ntaub ntawv muaj peev xwm ntau dua ib chav tsev tuaj yeem tso tawm ib zaug, thiab qhov ze ze rau qhov pom. Ntawm qhov tsis sib xws, qhov ntev ntawm qhov kev ncua deb haum rau kev saib. Ntau tus neeg siv ib txwm xav tias qhov me me ntawm cov dot pitch ntawm cov khoom, qhov zoo dua. Txawm li cas los xij, qhov no tsis yog qhov xwm txheej.
Pa LED cov ntxaij vab tshaus xav kom ua tiav qhov pom kev zoo tshaj plaws thiab muaj qhov pom qhov deb zoo tshaj plaws, thiab tib yam yog qhov tseeb rau cov duab me me-puab puv xim LED. Cov neeg siv tuaj yeem ua qhov yooj yim xam los ntawm qhov pom qhov deb zoo tshaj plaws =dot spacing/0.3~0.8. Piv txwv li, qhov kev pom zoo tshaj plaws ntawm P2 me-pitch LED npo yog li 6 meters deb.
Peb paub tias qhov me me ntawm qhov dot pitch, tus nqi siab dua ntawm qhov me me-pitch full-xim LED zaub. Yog li ntawd, hauv kev yuav khoom tiag tiag, cov neeg siv yuav tsum ua tib zoo xav txog lawv tus kheej tus nqi, kev thov, ntau yam ntawm daim ntawv thov thiab lwm yam.
3. Thaum xaiv qhov kev daws teeb meem, xyuam xim rau qhov kev sib tw nrog "pem hauv ntej-kawg teeb liab cov khoom siv"
Qhov me me ntawm cov dot pitch ntawm me me-pitch full-xim LED zaub, qhov kev daws teeb meem siab dua, thiab qhov siab dua qhov pom tseeb. Hauv kev ua haujlwm tiag tiag, cov neeg siv xav tsim qhov zoo tshaj plaws me me-pitch LED zaub system. Thaum them nyiaj rau qhov kev daws teeb meem ntawm lub vijtsam nws tus kheej, lawv kuj yuav tsum xav txog kev sib xyaw ua ke ntawm nws thiab cov khoom siv hluav taws xob hauv ntej kawg.
Piv txwv li, hauv kev saib xyuas kev ruaj ntseg, cov kev saib xyuas hauv ntej feem ntau suav nrog cov teeb liab video hauv D1, H.264, 720P, 1080I, 1080P thiab lwm hom. Txawm li cas los xij, tsis yog txhua qhov me me-pitch full-xim LED qhia ntawm lub khw tuaj yeem txhawb nqa cov teeb liab video hauv cov qauv saum toj no. Yog li ntawd, txhawm rau kom tsis txhob muaj cov khoom siv pov tseg, cov neeg siv yuav tsum xaiv raws li lawv cov kev xav tau thaum yuav khoom me me-pitch tag nrho-xim LED zaub, thiab tsis txhob ua qhov muag tsis pom kev.
Tam sim no, me me-pitch full-xim LED zaub cov khoom tau siv dav hauv TV studios, lub zog saib xyuas cov chaw, aerospace command centers, tub rog commands, tsoom fwv halls, nroog saib xyuas cov chaw, video conference room, dispatching chav, tshav dav hlau, railway chaw nres tsheb, Chaw ntiav pw thiab cov lag luam loj thiab nruab nrab.
