4K, lossis UHD, hais txog kev daws teeb meem (feem ntau) ntawm 3840 x 2160 thiab (dua, feem ntau) 60 ntas ib ob. Txhawm rau muab lwm txoj hauv kev, 4K yog plaub npaug ntawm qhov kev daws teeb meem ntawm tus qauv HD (uas yog 1920 x 1080), thiab yog ib txwm muaj kev vam meej, es tsis yog interlaced.
Puas yog 4K TVs nce lossis cuam tshuam?
Cov yam ntxwv no yog lwm lub hom phiaj tseem ceeb uas tau teev tseg hauv ITU-R's (aptly dubbed) Rec. 2020 spec rau 4K / UHD. Namely, lawv yog (loj) xim qhov chaw thiab (progressive-tsuas) ncej tus nqi. Cov lus tshwj xeeb raug hu ua ITU-R Cov Lus Pom Zoo BT.
Is 4K 1080i?
YKoj lub TV 4K muaj qhov daws teeb meem ntawm 3, 840x2, 160 pixels. Zoo nkauj heev txhua cable, satellite, streaming, gaming, Blu-duab tshav thiab lwm yam video ntsiab lus yog 1, 920x1, 080 pixels (uas yog hu ua
1080p thiab 1080i) lossis 1, 280x720 (hu ua 720p). Txhua 4K daws teeb meem TVs muaj plaub npaug ntau pixels li 1080p TVs.
Puas yog 4K daws teeb meem?
"4K" yog hais txog kab rov tav kev daws teeb meem ntawm ncig 4,000 pixels Tus "K" sawv cev rau "kilo" (txhiab). Raws li txhua yam sawv ntsug, feem ntau ntawm 4K zaub tuaj nrog 3840 x 2160 pixels (4K UHDTV) daws teeb meem, uas yog raws nraim plaub npaug ntawm pixel suav ntawm cov zaub puv HD (1920 x 1080 pixels).
4K UHD zaub technology yog dab tsi?
Thaum siv hauv tsev, 4K / UHD txhais tau tias TV lub vijtsam muaj qhov kev daws teeb meem tsawg kawg ntawm 3, 840 pixels dav thiab 2, 160 pixels siab, ua rau nws sib npaug rau ob lub 1080p cov ntxaij vab tshaus hauv qhov siab thiab ob qhov ntev. Qhov kev daws teeb meem no yog Ameslikas hu ua "Quad HD," thiab nws tau siv los ntawm txhua txhua 4K TV.
