Kom tsis ntev los no, qhov zoo tshaj plaws daws teeb meem ntawm TVs yog 1920 x 1080 pixels, uas yog 1080p los yog raws li nws hu ua - Full HD. Tab sis nyob rau hauv 2002-2005 ib tug meej meej tshiab ntawm kev daws teeb meem tshwm sim - thawj 2K, ces 4K. Saib cov ntsiab lus hauv no zoo tam sim no tuaj yeem tsis yog hauv kev lom zem, tab sis nyob hauv tsev, rau qhov no koj xav tau lub TV nrog 4K UHD zoo txhawb.
Dab tsi ua cov ntsiab lus 4K (Ultra HD) thiab UHD?
Ua ntej koj paub tias dab tsi 4K UHD cov TV, koj yuav tsum to taub cov ntsiab lus. Yog li, 4K thiab UHD tsis yog cov lus hais thiab tsis yog lub npe ntawm ib yam nkaus xwb. Qhov no yog qhov kev taw qhia ntawm kev ua txhua yam.
4K yog ib qho qauv txuj ci siab tshaj plaws, qhov uas UHD yog ib qho kev tshaj tawm thiab cov neeg siv khoom siv. Hais txog 4 K, peb txhais tau tias qhov kev daws teeb meem ntawm 4096x260 pixels, uas yog 2 npaug ntau tshaj qhov qub standard 2K (2048 x 1080). Tsis tas li ntawd, lub sij hawm 4K kuj txhais tau tias cov ntsiab lus ntawm cov ntsiab lus.
UHD, tam rau theem tom ntej ntawm Full HD, nce qhov teeb meem ntawm kev tshuaj ntsuam mus rau 3840 x 2160. Raws li koj tau pom, qhov tseem ceeb ntawm 4K thiab UHD cov kev cai tsis yog coincide, tab sis nyob rau hauv advertising peb nquag hnov cov ntsiab lus ob ntawm cov npe ntawm tib lub TV.
Tau kawg, manufacturers paub qhov txawv ntawm 4K thiab UHD, tab sis raws li kev lag luam tawm lawv koom rau lub 4K lub sij hawm thaum cov khoom lawv cov khoom.
Cov TV uas txhawb nqa 4K UHD?
Qhov zoo tshaj plaws TVs, muaj peev xwm ua tau koj nyob hauv ib txoj kev ntshiab, cov ncauj lus kom ntxaws, hnub no yog:
- Philips 48PUS7600;
- Sony KD-55X8507C;
- Sony KD-49X8305C;
- Samsung UE40JU6000U;
- SUPRA STV-LC50T950UL.
Lawv tig lub saib cov ntsiab lus, txawm tias tsuas yog ob peb tug, nkag siab tiag tiag. Cov kws ua lag luam ntseeg hais tias yav tom ntej nws yog TVs nrog Ultra HD yuav yog qhov nrov tshaj plaws ntawm kev ua lag luam, thiab cov yees duab hauv hom ntawv no yuav yog qhov tseem ceeb.