Yog tias koj nyob hauv kev ua lag luam rau TV tshiab, projector, lub koob yees duab, lossis lwm yam zaub, koj yuav tsum tau xyuam xim rau qhov sib piv. Tab sis qhov kev ntsuas no txhais li cas, thiab koj paub li cas tias koj cov zaub muaj qhov sib txawv zoo?
Kab lus no yuav pab koj nkag siab qhov sib piv ntawm qhov sib piv thiab lawv cuam tshuam koj qhov kev pom ntawm ntau yam khoom siv.
Thaum cov lus qhia feem ntau muaj qhov sib piv uas tus saib tuaj yeem hloov kho manually, qhov piv yog hais txog lub vaj huam sib luag cov kev txwv-hauv lwm lo lus, qhov sib txawv loj tshaj plaws ntawm nws qhov teeb meem (dawb) thiab qhov tsaus ntuj tshaj plaws (dub).
Dab tsi yog qhov sib piv piv?
Kev sib piv yog qhov ntsuas qhov sib txawv ntawm cov zaub qhov siab tshaj plaws thiab qhov ci tsawg kawg nkaus; muab lwm txoj kev, nws yog qhov piv ntawm cov brightest dawb thiab darkest dub. Piv txwv li, qhov sib piv ntawm 1, 000: 1 txhais tau tias cov duab dawb tshaj plaws yog 1, 000 npaug ntawm qhov ci dua li qhov tsaus ntuj tshaj plaws.
Feem ntau, qhov sib piv ntau dua yog qhov zoo dua vim tias cov zaub nrog 100, 000: 1 piv tuaj yeem tsim cov xim dub thiab cov xim saturated ntau dua li ib qho nrog 1, 000: 1 kev ntsuam xyuas, yog li ua tiav ib qho kev ua kom zoo dua qub- saib duab. Uas tau hais tias, tus lej loj dua tsis yog ib txwm zoo dua, vim tias koj yuav tsum coj cov teeb pom kev sab nraud rau hauv tus account lub teeb pom kev zoo thiab hom zaub rau hauv tus account.
Dab tsi yog qhov sib piv zoo?
Raws li tau hais dhau los, qhov sib piv ntau dua muaj nws cov txiaj ntsig tab sis tsis yog tib qho uas koj yuav tsum xav txog. Piv txwv li, lub projector nrog qhov sib piv qis dua tuaj yeem muab qhov kev pom zoo yog tias koj yuav siv nws hauv chav nrog ntau lub teeb pom kev zoo.
Qhov sib piv kuj tseem tuaj yeem sib txawv ntawm ntau hom zaub. Thaum lub transmissive digital projector tsuas yog muaj qhov sib piv ntawm 200: 1, ntau lub TV tshiab dua 4, 000: 1. Tab sis txawm tias cov nuj nqis no tsis qhia tag nrho zaj dab neeg, vim qhov sib piv sib piv yog nyob ntawm cov cuab yeej siv thiab ntsuas lawv li cas.
Static vs Dynamic Contrast
Thaum saib ntawm qhov sib piv ntawm cov zaub, nws yog ib qho tseem ceeb kom nkag siab txog ntau txoj hauv kev uas lawv ntsuas. Qhov sib piv tiag tiag uas koj pom tuaj yeem faib ua ob hom sib txawv: Static Contrast thiab Dynamic Contrast.
Static Contrast, txwv tsis pub hu ua "haiv neeg" lossis "onscreen," yog qhov piv piv piv rau qhov ci ntsa iab thiab tsaus tshaj plaws ntxoov ntxoo uas muaj peev xwm tsim tau tib lub sijhawm. Txij li qhov piv txwv no qhia txog cov txiaj ntsig los ntawm thaum lub vaj huam sib luag tau tsim, cov kws tshaj lij kev lag luam feem ntau xav tias qhov no yog qhov tseeb dua qhov sawv cev ntawm cov khoom muaj peev xwm.
Dynamic Contrast muaj ntau qhov theoretical ntau ntawm cov zaub qhov sib piv piv, vim nws muaj kev cuam tshuam ntau rau ntawm lub vijtsam hauv qab thev naus laus zis. Ntawm no, qhov sib txawv nruab nrab ntawm qhov pom ntawm qhov pom ntawm tag nrho-dawb / lub teeb pom kev thiab qhov tsaus ntuj tshaj plaws ntawm qhov tsaus ntuj / tsaus ntuj yog ntsuas.
Qhov teeb meem nrog kev ntsuas qhov sib txawv ntawm qhov sib txawv yog tias lawv feem ntau tsis ncaj ncees, vim tias koj tsis zoo li yuav muaj qhov sib txawv dav hauv tib qhov xwm txheej. Nyob rau sab saum toj ntawm qhov no, cov tuam txhab lag luam tuaj yeem tswj hwm qhov sib txawv los ua kom lub teeb ci dua lossis tsaus dua siv lub teeb pom kev rov qab thiab firmware.
Kev Ntsuas Qhov Sib Txawv Li Cas?
Hmoov tsis zoo, tsis muaj kev ntsuas ntsuas ntawm qhov sib piv. Tshwj xeeb hauv kev ua lag luam TV, cov tuam txhab tsim khoom tuaj yeem ua kom nce lawv cov qhab nia vim muaj kev sib xyaw ua ke ntawm kev ntsuas thiab tsis muaj qhov sib txawv. Uas tau hais tias, feem ntau qhov sib piv yog ntsuas los ntawm ib qho ntawm ob txoj hauv kev:
ANSI qhov sib txawv (Kev ntsuas qhov sib txawv zoo li qub)
Txoj kev no siv cov qauv kuaj xyuas daim duab ntawm kev hloov xim dub thiab dawb squares thiab ntsuas qhov nruab nrab cov zis tawm dawb faib los ntawm qhov nruab nrab cov zis dub.
Cov duab uas ntsuas nrog cov qauv no nyiam sau npe qis dua qhov sib piv raws li ANSI qhov sib piv muab qhov ntsuas qhov tseeb dua ntawm lub peev xwm ntawm lub vijtsam. Txawm li cas los xij, txij li qhov kev sim tuaj yeem suav nrog chav tsev teeb pom kev zoo hauv nws qhov ntsuas, nws yuav tsum tau ua nyob rau hauv qhov chaw zoo tshaj plaws rau kev nyeem ntawv tseeb tshaj plaws.
Full On/Off (Measures Dynamic Contrast Ratio)
Txoj kev no ntsuas lub vijtsam dawb tag nrho nrog txhua lub vijtsam dub thiab qhia txog qhov sib npaug ntawm lub teeb los ntawm cov zaub mus rau chav thiab rov qab. Nws yog txoj kev nyiam rau ntau lub tuam txhab, vim nws tshem tawm sab nrauv teeb pom kev zoo thiab ua rau qhov zoo tagnrho (thiab yog li siab dua) qhov sib piv. Hmoov tsis zoo, dynamic contrast specs feem ntau ua yuam kev vim tias lawv tuaj yeem nce siab thiab tsis qhia ntau npaum li cas qhov nruab nrab ntawm qhov sib piv yuav zoo li.
Xaiv qhov zoo sib xws
Vim qhov sib txawv specs tuaj yeem nkag siab tsis tseeb, nws yuav siv qee qhov kev siv zog los txiav txim siab seb cov khoom puas muaj cov qib dub nplua nuj thiab cov duab zoo nkauj.
Qhov kev sim qhov muag yog qhov cuab yeej zoo tshaj plaws ntawm koj qhov pov tseg - yog tias cov zaub cov qib dub zoo li ntxuav tawm thiab grey, nws qhov sib piv piv yuav tsis siab txaus. Txawm li cas los xij, muaj lwm txoj hauv kev los xyuas kom koj tsis txhob raug dag:
- Nrhiav cov neeg muag khoom uas tshaj tawm ANSI qhov sib txawv specs, vim qhov no yog qhov tseeb dua qhov kev xav ntawm cov zaub qhov sib txawv qhov tseeb. Hmoov tsis zoo, ntau lub tuam txhab tsis tshaj tawm cov nuj nqis no, vim tias ANSI kev nyeem ntawv zoo li qis dua Full On / Off, thiab nws tsuas yog lub tswv yim zoo tshaj plaws rau cov tuam txhab no kom tsom mus rau tom kawg.
- Ua tib zoo mloog rau kev siv thev naus laus zis. Yog tias koj tab tom nrhiav lub TV nrog qhov sib piv siab, OLED zaub yuav muab kev pom zoo dua li lub vaj huam sib luag LCD, xws li OLED's pixels tsis cia siab rau lub teeb nraub qaum thiab tuaj yeem tso cov xim dub tob dua yam tsis muaj "blooming" nyhuv.
- Tau rau tib lub chaw tsim khoom thaum sib piv. Txij li txhua lub tuam txhab tuaj txog ntawm nws qhov sib txawv ntawm qhov sib txawv, kev sib piv cov khoom tsim los ntawm tib lub chaw tsim khoom yog ib txoj hauv kev zoo kom tau raws li qhov sib txawv. cov duab.
FAQ
Dab tsi yog qhia los ntawm qhov sib piv ntawm tus saib?
Raws li nws hais txog kev saib xyuas, qhov sib piv piv yog qhov sib piv ntawm qhov ci ntsa iab ntawm lub teeb pom kev siab tshaj plaws thiab cov xim dub tob tshaj plaws uas tus saib muaj peev xwm tsim tau. Yog tias tus saib muaj qhov sib piv siab, nws txhais tau hais tias nws muaj qhov sib sib zog nqus ntawm cov xim dub, qhia txog qib siab ntawm cov duab zoo tag nrho.
qhov sib piv qhov piv txwv tseem ceeb npaum li cas hauv qhov projector?
Kev sib piv yog qhov tseem ceeb rau qhov projector duab zoo. Qhov siab dua qhov sib piv, qhov nthuav dav cov neeg saib tuaj yeem pom ntawm daim duab projected. Qhov sib piv ntau dua kuj txhais tau tias muaj xim subtlety ntau dua, thiab pom pom ntau dua.
Dab tsi yog qhov sib piv zoo rau tus saib LCD?
Niaj hnub nimno computer LCD saib feem ntau muaj qhov sib piv ntawm 1000: 1 thiab 3000: 1. Kev saib xyuas kev ua si zoo yuav nyob mus rau qhov siab dua ntawm qhov spectrum, tab sis siv koj ob lub qhov muag thaum txiav txim siab saib xyuas koj nyiam thiab nco ntsoov tias lub teeb nyob ib puag ncig yuav cuam tshuam rau qhov koj tab tom pom.
