Kev Paub Txog Me Ntsis Lawm: Kev Tshaj Tawm TV Zoo Tshaj Qhov Zoo Tshaj Tawm?

Peb feem ntau xa mus rau qhov sib piv ntawm qhov dav thiab qhov siab ntawm qhov kev tshuaj ntsuam raws li nam piv (tseem hu ua nam piv los sis qhov kev sib piv screen). Tam sim no, qhov screen piv txwv ntawm LCD TVs yog feem ntau 4: 3 thiab 16: 9, yog li cas yuav tsum TV ntsuas piv tau? Yog tias koj tseem txhawj txog qhov no, tej zaum cov hauv qab no tuaj yeem pab koj.

Qhov piv ntawm daim duab ntawm yuav luag tag nrho cov movies yog tus txheej txheem 1.33: 1 (yog 1.37: 1, tab sis collectively hu ua 1.33: 1 raws li tus txheej txheem). Uas yog hais, lub dav ntawm daim duab duab yog 1.33 lub sij hawm qhov siab. Qhov no piv yog qee zaum uas yog 4: 3, uas txhais tau tias qhov dav yog 4 units thiab qhov siab yog 3 units. Hauv lub sijhawm xyoo 1950, qhov kev lag luam tshiab hauv TV tau ntsib qhov teeb meem ntawm qhov ntsuas qhov ntsuas los siv raws li lub TV qauv.

Los ua kom pom cov movie hauv TV, lub National Television Standards Committee (NTSC) thaum kawg txiav txim siab txais yuav kev kawm qib siab raws li tus txheej txheem hauv TV, uas yog keeb kwm ntawm qhov 4: 3 TV duab piv. Qhov kev piv txwv no tseem yog ib qho tseem ceeb rau TV kom txog thaum hnub no.

Vim tias qhov kev lig kev cai no, cov kev pabcuam TV peb tau txais tam sim no yog qhov zoo li no, yog li qhov screen piv txwv ntawm LCD TVs yog tam sim no los ntawm 4: 3. Txawm li cas los xij, cov yeeb yaj kiab tiag mas feem ntau widescreen. Hloov cov videscreen movie mus rau 4: 3 yuav ua rau tsis muaj duab zoo, zoo lossis cov ntsiab lus. Thiaj li saib cov yeeb yaj kiab hauv TV, 16: 9 Cov vijtsam TV Qhov piv tau tshwm sim, thiab txij li lub neej yav tom ntej siab txhais TVs mas yuav siv 16: 9 piv, kuj muaj qee lub LCD TV uas siv cov lej ntsuas no.