Thaum saib cov yeeb yaj kiab ua yeeb yaj kiab ntawm koj lub HDTV lossis 4K Ultra HD TV, koj tseem yuav pom cov kab dub nyob rau sab saum toj thiab hauv qab ntawm qee cov duab, txawm tias koj lub TV muaj qhov sib piv 16x9.
Cov ntaub ntawv no siv tau rau TV los ntawm ntau lub tuam txhab suav nrog, tab sis tsis txwv rau, cov tsim los ntawm LG, Samsung, Panasonic, Sony, thiab Vizio.
16x9 Aspect Ratio Defined
Lub sij hawm 16x9, kuj tau hais tias yog 1.78: 1, txhais tau tias TV screen yog 16 units dav kab rov tav, thiab 9 units siab vertically.
Txawm tias qhov screen loj npaum li cas yog nyob rau hauv nti lossis centimeters, qhov sib piv ntawm kab rov tav dav mus rau ntsug qhov siab (tus piv piv) yog tas li rau HDTVs thiab 4K Ultra HD TVs.
GlobalRPH thiab Display Wars muab cov cuab yeej siv online uas tuaj yeem pab koj txiav txim siab lub vijtsam kab rov tav thiab qhov siab ntawm ib qho 16x9 TV, raws li kab pheeb ces kaum loj.
Ib feem piv thiab yam koj pom ntawm koj lub TV screen
Yog vim li cas koj pom cov kab dub ntawm qee cov yeeb yaj kiab yog tias ntau cov yeeb yaj kiab siv qhov sib piv dav dua li 16x9.
Piv txwv li, txij li kev hloov pauv ntawm DTV, thawj HDTV programming muaj 16x9 (1.78) nam piv, uas haum rau lub vijtsam loj ntawm niaj hnub LCD (LED / LCD), Plasma, thiab OLED HDTVs thiab 4K Ultra HD TVs.
Txawm li cas los xij, txij li nruab nrab xyoo 1950, ntau cov yeeb yaj kiab ua yeeb yaj kiab tau nthuav dav qhov sib piv, suav nrog 1.85 thiab 2.35. Koj yuav pom cov kab dub nyob rau sab saum toj thiab hauv qab ntawm lub vijtsam TV thaum koj saib cov yeeb yaj kiab no ntawm HDTV lossis 4K Ultra HD TV (yog tias nthuav tawm hauv lawv qhov qub theatrical nam piv).
Cov duab tso tawm nrog cov kab dub nyob rau sab saum toj thiab hauv qab feem ntau hu ua "letterboxed."
Aspect Ratios tuaj yeem sib txawv ntawm qhov program mus rau qhov program. Yog tias koj tab tom saib DVD, Blu-duab tshav, lossis Ultra HD Blu-duab tshav Disc, qhov sib piv ntawm cov ntawv teev npe ntawm pob yuav txiav txim siab seb nws zoo li cas hauv koj lub TV (ntau lub pob DVD kuj tseem hais tias "Txhim kho rau 16x9 TVs").
- Yog tias qhov kev pab cuam HDTV lossis zaj duab xis yog 1.78: 1, ces nws yuav sau tag nrho lub vijtsam kom raug.
- Yog tias qhov piv txwv ntawm ib zaj duab xis yog 1.85: 1, ces koj yuav pom cov kab dub me me rau saum thiab hauv qab ntawm lub vijtsam.
- Yog tias qhov piv txwv ntawm ib zaj duab xis yog 2.35: 1 lossis 2.40: 1, uas yog qhov zoo rau cov yeeb yaj kiab loj thiab cov yeeb yaj kiab, koj yuav pom cov kab dub loj nyob rau sab saum toj thiab hauv qab ntawm daim duab.
Ntawm qhov tod tes, yog tias koj muaj Blu-duab tshav Disc lossis DVD ntawm cov yeeb yaj kiab qub qub thiab cov nam piv tau teev tseg raws li 1.33: 1 lossis "Academy Ratio," lossis koj tab tom saib TV rov qab. qhov kev pab cuam ua ntej HDTV yog ib txwm, ces koj yuav pom dub tuav nyob rau sab laug thiab sab xis ntawm daim duab ntawm ib tug 16x9 nam piv screen, es tsis txhob ntawm sab saum toj thiab hauv qab (ib tug "daim duab ncej").
Cov yeeb yaj kiab ua ntej siv ntau zaus ntawm qhov sib piv dav dav lossis TV qhia ua ntej HDTV siv (cov qub analog TVs muaj qhov sib piv ntawm 4x3, uas yog "squarish" saib ntau dua) ua rau cov duab hauv lub thawv.
Ntawm HD thiab Ultra HD TVs, nrog rau feem ntau cov yeeb yaj kiab video, koj tuaj yeem ncab ib daim duab 4x3 los sau qhov chaw. Txawm li cas los xij, ua li ntawd cuam tshuam qhov feem ntawm cov duab ntawd, ua rau cov khoom tshwm dav dav kab rov tav, uas tshwj xeeb tshaj yog pom ntawm ob sab ntawm daim duab.
Black Bars vs. Filling the Screen
Thaum saib TV yeeb yaj kiab thiab yeeb yaj kiab, qhov kev txhawj xeeb tseem ceeb yog seb koj puas pom txhua yam hauv daim duab, tshwj xeeb tshaj yog tias koj pom cov duab ntawm lub vijtsam projection, uas loj dua.
Real HDTV cov kev pab cuam puv npo. Ntau cov yeeb yaj kiab tau pom cov kab dub nyob rau sab saum toj thiab hauv qab ntawm lub vijtsam, thiab feem ntau cov yeeb yaj kiab ua ntej nruab nrab-1950s thiab pre-HDTV qhia pom nrog cov kab dub nyob rau sab laug thiab sab xis ntawm daim duab.
Lub TV npo yog muab qhov chaw uas koj saib cov duab. Nyob ntawm hom ntawv, tag nrho daim duab yuav lossis tsis tuaj yeem sau tag nrho lub vijtsam. Txawm li cas los xij, qhov screen saum npoo ntawm 16x9 TV tuaj yeem ua kom haum ntau qhov sib txawv ntawm qhov sib piv ntawm qhov tseeb dua li qub, 4x3 analog TVs.
