Mos pov thawj nrog LCD saib
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
Yog xav paub ntxiv, thov tuaj xyuas
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Ib qho kua siv lead ua kua uas hloov cov thawj CRT monitor (kua Crystal Monitor) tau tsim thiab twb raug siv hauv qee cov tuam txhab. Muaj ib qho kev muaj zog hauv kev tshaj tawm thiab luam tawm kev lag luam hloov ntawm CRT tus saib rau LCD saib. Nrog lub digitization ntawm cov kev ua haujlwm, nws yuav tsum ua kom tiav cov xim kev luam ntawm cov luam tawm ntawm cov kua siv lead ua kua. Tsab xov xwm no piav qhia txog qhov xav tau cov khoom pov thawj ntawm cov kua siv ua kua dej ua kua thiab ua rau pom kev txuag muag.
Qhov zoo thiab qhov tsis zoo ntawm LCD ntsuas
Qhov zoo ntawm LCD ntsuas yog sau hauv qab no piv rau CRT tus saib xyuas.
1) Saves av vim luv luv thiab consumes tsawg zog (tsis muaj cua sov).
2) Nws yog ib lub dav hlau zoo thiab tsis tuaj yeem geometric distortion.
3) Tsis muaj kev ntxhov siab thiab xim hloov ntawm RGB.
4) Lub neej ntev thiab hloov tsis tau ntev.
5) Lub chaw yog kev siab dav.
Ntawm qhov tod tes, los ntawm cov kev xav ntawm kev siv cov duab hauv kev paub ntau, nrog rau kev luam, nws tsis zoo li CRT tus saib:
1) Qhov xim nqaij yog nqaim.
2) Cov yam ntxwv ntawm qhov tsis sib xws, chromaticity, thiab qhab nee sib txawv ntawm qhov txawv ntawm qhov pom ntawm.
3) Hierarchical yam ntxwv tsis yog ncaj.
4) Cov yam ntxwv ntawm lub monitor tsis ncaj ncees (untrustworthy).
Txhawm rau kov yeej cov kev tsis txaus ntseeg no, ua kua dej ua kua xauv uas yuav hloov tau lub CRT monitor.
Ntsiab cai ntawm cov kua siv lead ua kua
Qhia me me txog kev ua haujlwm ntawm cov kua siv ua kua, thiab cov pixels uas ua rau lub hauv paus raug faib ua 3 (sub-pixels) siv rau hauv peb yam xim ntawm RGB, thiab RGB xim cov xim tso rau hauv lawv lub xub ntiag. Los ntawm ua ntawv thov ib qhov kev ntsuas hluav taws xob rau txhua lub sub-pixels, cov kua siv lead ua kua ces hloov lub kaum sab xis kom tswj tau qhov nyiaj ntawm lub teeb kis mus los ntawm sab nraum qab. Qhov no npaum li cas ntawm lub teeb kis mus ces dhau los ntawm lub lim swatch, muab cov nqi ntawm RGB los sawv cev rau xim tshwj xeeb. Daim duab 1 qhia tau hais tias feem ntau TN hom ua kua dej ua kua.
Xim chaw
Qhov chaw xim yog txiav txim siab los ntawm RGB xim lim thiab lub nrig qaum xim, vim li ntawd, cov xim lim xim muaj cov cwj pwm zoo. Yav tas los, tus yam ntxwv ntawm tus saib tau ua rau ntawm qhov muaj feem thib rau kev ci ntsa iab, thiab qhov chaw tsis muaj xim zoo nkauj dua li ntawm CRT tus saib.
Tam sim no, kev lag luam tus qauv rau kev soj ntsuam cov yam ntxwv yog sRGB, thiab kom deb li deb nrog lub PC-zoo li cov saib. Feem ntau cov neeg soj ntsuam LCD muaj xim qhov chaw sib txawv li sRGB. Feem coob ntawm CRT tus saib xyuas raws li EBU (European Broadcasting). Federation) qhov chaw xim xim. Lub npe hu ua sRGB, qhov chaw khiav hauj lwm ntsuab me ntsis txawv me ntsis, tab sis tuaj yeem hais tias yuav tsum tau tib yam nkaus. sRGB yog thaj chaw ua haujlwm ntawm RGB lub chaw haujlwm ntawm Adobe daim ntawv thov software yog tswj xyuas, thiab xim qhov chaw ntawm cov koob yees duab digital no feem ntau kuj txhawb. Yog li, qhov chaw xim ntawm sRGB (EBU) kuj tawm suab hauv lub LCD saib.
Kev pom thiab chromaticity
Hierarchical khoom locator
Ntawm cov yam ntxwv ntawm cov kua siv lead ua kua, qhov tseem ceeb tshaj plaws ntawm cov neeg siv tshuab luam ntawv yog "lub kaum sab xis pom". Ntxiv mus, lub ntsiab lus ntawm qhov pom ntawm hauv cov kua siv lead ua kua txhais tau tias qhov sib txawv ntawm cov xim dawb thiab dub sawv cev ntawm qhov kev ntsuas tau tuav ib qho nqi (feem ntau 10: 1), thiab qhov tawm ntawm chromaticity thiab qhov tawm qhov gradation cov yam ntxwv tsis raug suav hais tias txhua. Qhov no yog hais tias, txawm tias hauv cov qauv khoom ua tseem ceeb, txawm tias cov kua siv lead ua kua uas pom tib lub qhov pom ntawm cov yam ntxwv tau muab me ntsis lub kaum ntse ntse, qhov kev hloov hauv chromaticity thiab qhov hloov ntawm cov cwj pwm (qhov phenomenon ntawm whitish tawv nqaij, thiab lwm yam .) tsis tshua muaj nyob. .
Nws zoo li hais tias tsis muaj teeb meem thaum saib ntawm lub hauv ntej, tab sis rau ib chav kawm 21-nti saib, thaum saib ntawm ib tug nyob deb li 50 cm, ob hnub los saib nrog lub kaum sab xis pom ntawm 20 degrees los yog ntau tshaj, uas yog inevitably cuam tshuam. Yog tias koj pom zoo daim duab ntawm cov khoom siv nrog tus neeg muas zaub, cov nyhuv yuav yooj yim dua. Qhov no yog nyob ntawm seb cov kua siv lead ua haujlwm li cas.
3 txoj kev ntawm LCD
TN hom
Tam sim no, feem ntau yog siv TN (Twisted Nematic) hom ua kua siv ua kua. Feem ntau ntawm cov PCs, feem ntau ntawm cov 15-nti LCD ntsuas, siv hom zaub teeb ntawm no. Qeb 17-nti ntawm cov khoom pheej yig yog qhov tseem ceeb ntawm cov khoom siv ua ke. Raws li pom hauv daim duab 2-1, ib qho hluav taws xob yog siv rau cov pixels, qhia tias cov kua nplaum uas pib thaum pib thaum lub dav hlau tig mus rau lub kaum sab xis, hloov cov chromaticity thiab cov khoom ntaus nqi. Nrog kev siv ntawm daim ntawv them nyiaj rau lub rooj sab laj saib, cov ces kaum sab laug thiab txoj cai yog lub dav, thiab qhov zoo li ntawm qhov screen yog obviously txawv, yog li nws tsis haum rau kev luam ntawv.
VN hom
Cov khoom 17-inch lub kaum sab xis, cov khoom siv 19-inch siv cov VA (Vertical Alignment) zaub vaj huam sib luag, thaum qhov hluav taws xob tsis siv rau lub pixel (tsaus nti), lub kua crystal khub qhia tias lub dav hlau nyob ze rau ntawm txoj kab Lub kaum ntse ntse, yog li ntawm kev pom ntawm lub kaum sab xis pom yog loj. Raws li qhov tseeb hais tias qhov nqaj ntawm cov kua siv ua kua ntawm cov kua siv ua kua (multipurated domain), cov nyhuv poob lawm, thiab pom kev loj hlob, qhov kev xa tawm ntawm chromaticity yog suppressed, thiab qhov tawm ntawm cov cwj pwm ntawm qhov sib txawv tam sim no, yog li ntawd qhov kev pom zoo tsis tau tiav. Cov theem ntawm kev siv rau kev luam ntawv (saib daim duab 2-2).
IPS hom
IPS (Hauv Txoj Kev Hloov Txoj Kev Hloov) yog tias cov kua siv ua kua hloov hloov lub kaum sab xis ntawm qhov sawv cev ntawm qhov sawv cev, thiab tsis tshua hloov cov chromaticity thiab cov cwj pwm coj los ntawm vim lub kaum sab xis pom (saib Daim Iav 2-3). Tsis tas li ntawd, raws li qhia hauv daim duab. 2-4, sub-pixel yog muab faib ua ob los hloov lub kaum sab xis (dual-domain), yog li ntawd lub zog txo ntxiv.
Vim tias nws cov xim zoo tshaj plaws, cov duab vaj huam sib luag ntawm hom no feem ntau yog siv rau cov khoom loj loj los ntawm 18 inches los yog ntau dua, thiab feem ntau yog siv hauv cov duab ntawm kev kho mob, thiab tuaj yeem hais tias yuav tsum ua kom haum rau kev luam ntawv .
Saib xyuas kev kho mob
Cov yam ntxwv uas yuav tsum tau muaj rau kev soj ntsuam tau raug piav los saum no, thiab yuav tsum tau ua kom muaj calibration txhua lub sij hawm thiaj li ua kom muaj tseeb ntawm nws cov yeeb yam. Feem ntau, tus saib xyuas yog xim-coded, thiab raws li cov txiaj ntsig, qhov tso tawm video ntawm tus kheej lub computer yog kho, uas yog hu ua software calibration. Qhov teeb meem no ua rau muaj kev hloov xim ntawm cov xim dawb, uas yog sib npaug kom ci qhov sib npaug ntawm ib lossis ob qho ntawm RGB, uas yog sib npaug ntawm 256-order tone siv. Cov ntaub ntawv ntawm kev hloov tus nqi nros ntawm tus nqi qub yog qhov sib npaug xaiv thiab rho tawm ntau ntawm 256-order tones los ua γ ntawm lub hom phiaj, uas ua rau poob ntawm lub suab lus. Thaum sawv cev rau theem sib npaug, muaj cov kauj ruam los yog cov kab, los yog rooj plaub pom cov xim, uas yog, cov no yog cov hauv paus ua rau.
Rau cov ntawv luam cov txheej txheem uas yuav tsum tau ua qhov tseeb ntawm cov cwj pwm, nws yog ntshaw kom muaj lub ntsuas kho vaj tse uas ua tau raws li qhov tseem ceeb xav tau (xws li, kub kub 500K / γ1.8). Txawm li cas los xij, ntawm lub LCD monitor, qhov kev hloov ntawm lub ci ntsa iab, vim yog lub RGB hom kev nrig txog kev lag luam, tsis tuaj yeem hloov kho ib lub zuj zus rau lub siab tshaj plaws ntawm RGB zoo li CRT tus saib.
Yuav kom daws tau qhov teeb meem no, ntau cov kev ua tiav ntawm 10 yam khoom los yog ntau dua tau ua hauv qhov chaw soj ntsuam, thiab nws yog qhov zoo tshaj rau kev faib tawm RGB ib tus zuj zus los ntawm 8-ntsis 256-order modulation function rooj.
Cov ntawv luam tawm
Txij li thaum cov xim ntawm lub zeem muag ntawm tus saib xyuas yog txhim khu kev ntseeg thiab txhim khu kev qha, nws yuav siv suab hauv kev siv luam ntawv rau cov ntawv hauv qab no.
1) Image processing ntawm cov ntaub ntawv yuav los ntawm ib lub koob yees duab (kws yees duab)
2) kev tshawb fawb ntawm cov duab ua haujlwm ntawm lub tuam txhab luam ntawv
3) Image display monitor nyob rau hauv lub tuam tsev qhov hluav taws xob
4) DTP cov haujlwm ua haujlwm hauv chav publishing
5) Duab ua luam rau cov ntawv xov xwm qhia lub koom haum
6) Rau ntau cov haujlwm ntawm lub tuam txhab kev tsim khoom
Nws tsis yog tas li rau cov kev hais saum toj no, thiab cov ntawv yuav raug muab coj los xav rau hauv cov cheeb tsam hais txog qhov xav tau kom muaj tseeb reproducibility, nws txoj kev ua lag luam thiab tom qab tus txheej txheem, thiab kev txhim kho zoo.
Phaum xyaum ua kom zoo
Nws yog qhov paub zoo tias digitalization thiab luam ntawv cov qauv rau kev ua haujlwm ua haujlwm hauv qhov kev luam tawm kev lag luam. Tag nrho cov ntawm no yog tswj cov sijhawm luv luv, txo cov nqi tsis tseem ceeb, thiab tswj kev ruaj ntseg. Hauv kev hloov ntawm cov haujlwm no, qhov yuav tsum tau ua rau saib xyuas yog tias cov xim ntawm cov ntawv luam tawm cov ntsiab lus tuaj yeem muab tsim tawm rau ntawm qhov ntsuas saib, thiab thaum kawg tag nrho cov kev kho yog siv rau hauv qhov ntsuas, uas yog, "soft proofing"
Raws li cov txiaj ntsim ntawm tus neeg siv, nrog cov digitization ntawm cov luam ntawv ua haujlwm, DDCP ntawm cov xim tiv thaiv tau yog hloov zuj zus ntxiv, thiab tag nrho cov kev kho tiav tuaj yeem ua tiav los ntawm lub tshuab saib, uas yog txuag tau tus nqi ntawm cov pov thawj, xa cov nqi thiab sijhawm, Thaum ua qhov Theem kuj tseem tuaj yeem txo qhov tso zis rau kev pom zoo, thiab tseem tuaj yeem txo lub sijhawm siv kho qhov kev kho tom qab kev txhawj xeeb.
Qhov tseem ceeb rau qhov no yog kev siv CMS raws li cov xim profile. Qhov tseeb, cov kev sim tau raug coj los ntawm tus saib xyuas los txiav txim seb qhov xim puas yog tseeb lossis tsis yog. Rau kev sim, tsawg kawg ntawm cov ntaub ntawv luam yuav tsum tau, cov qauv ua tau luam tawm los ntawm cov ntaub ntawv, thiab ICC cov ntaub ntawv ntawm lub tshuab luam ntawv uas luam tawm cov qauv. Yuav kom ua tau raws li cov kev cai no, tus txheej txheem ntawm "JAPAN COLOR Color Printing Printing 2001" yog siv, thiab qhov txheej txheem tiv thaiv no muaj tag nrho cov lus saum toj no.
Kev ua hauj lwm kev teeb tsa rau cov xim hauv Photoshop: Rau CMYK, xaiv Hom 1 qhov ntaub ntawv rau JAPAN COLOR 2001.
Txoj Hauj Lwm Txawv: Rau RGB, xaiv sRGB. Qhov chaw ntawm lub monitor yog xaiv los ntawm qhov kub dawb 5000K / γ1.8, thiab cov ntaub ntawv tsim tawm tom qab lub calibration ntawm brightness ntawm 80cd / m2 yog teev nyob rau hauv lub system.
Hauv qab no, txhua qhov xim ntawm cov ntaub ntawv luam tawm tau sau rau ntawm Photoshop, thiab Yxy tus nqi tau txais siv Minolta CS 1000 tauj, thiab hloov mus rau tus nqi Lab thiab muab piv nrog cov ntaub ntawv qub. Txawm hais tias tsis muaj kev sib txuas ntawm "L", qhov sib piv yog ua nyob rau hauv lub dav hlau "ab", tiam sis txoj kev zoo rau cov xim hauv sRGB xim gamut, zoo tshwm sim tias ⊿E (ab) yog hauv 2 tau.
Nyob ntawm ntau hom kev luam tawm, qhov no yuav tsum yog qhov txawv txav, tiam sis feem ntau, cov ntaub ntawv pov thawj ntawm cov kua siv lead ua kua tau zoo lawm.