Ultra-siab-txhais TV niaj hnub no suav nrog 4K UHD thiab 8K UHD, uas yog ob hom duab digital video nrog qhov sib piv ntawm 16: 9. Cov no yog thawj zaug los ntawm NHK Science & Technology Research Laboratories thiab tom qab ntawd txhais thiab pom zoo los ntawm International Telecommunication Union.
Puas yog 4K thiab UHD tib yam?
Rau lub khw muag khoom, UHD txhais tau tias 3840x2160 (xws li plaub npaug HD), thiab 4K feem ntau siv sib hloov los xa mus rau tib qhov kev daws teeb meem. Txawm li cas los xij, rau kev lag luam digital xinesmas, 4K txhais tau tias 4096x2160, lossis 256 pixels dav dua UHD. … Lub pixel daws teeb meem ntawm Flat yog 3996x2160, thaum qhov kev daws teeb meem ntawm Scope yog 4096x1716.
Us twg zoo dua UHD lossis Full HD?
Qhov kev daws teeb meem yog 3840x2160 pixels (8.3 megapixels). TVs, media player, thiab cov yeeb yaj kiab nrog Ultra HD daws teeb meem qhia 4 npaug ntau pixels as Full HD dluab. … Qhov no tso cai rau koj los kuj txaus siab rau cov duab uas tau kaw hauv Full HD ntawm koj lub vijtsam ntse dua ntawm Ultra HD TV.
Puas yog 4K UHD zoo dua HD?
A npo daws teeb meem ntau dua nrog UHD TV txhim kho koj qhov kev pom, piv rau HD TVs. Cov kab ntse dua, smoother curves thiab clearer color contrasts txhim kho txhua hom ntsiab lus. Raus koj tus kheej hauv cov yeeb yaj kiab raws li 4K daws teeb meem ntxiv qhov tob dua.
Us twg zoo dua UHD lossis LED?
4K LED TVs tseem ntse dua 4K OLED TVs vim yog cov khoom siv dag zog hauv 4K OLED TVs uas uatsis muaj nyob hauv 4K LEDs. Qhov no thiab ci ntsa iab tsuas yog ob qhov chaw zoo uas 4K LED ntaus 4K OLED. Ntev ntev, Screen Uniformity, Brightness, Xim Rendition yog txhua qhov tseeb hauv kev sib piv.
