Cov phooj ywg uas koom nrog cctv yws yws tias cov neeg siv khoom niaj hnub no tau lwj los ntawm kev tshaj tawm, hais tias seb cov saib thiab cov ntxaij vab tshaus yog 4K, koj puas muaj 1080P daws teeb meem rau cov duab saib?
Cov phooj ywg yuav frown thiab qhia ib leeg: Yog, tab sis kim, koj puas xav tau nws?
Tau kawg, los ntawm qhov kev pom zoo, tsis tas yuav muaj 4K hauv kev ruaj ntseg, thiab peb tseem yuav tsum tau sim ua kom muaj txiaj ntsig zoo tshaj plaws.
Qhov tseeb, tsis hais leej twg nug lossis teb, koj puas nug nws kom hais meej tias nws txhais li cas kom paub 4K? Yuav ua li cas paub qhov txawv ntawm pixels thiab daws teeb meem? 1080P sawv cev li cas? Tej zaum tsis muaj ntau yam uas tuaj yeem teb tau.
Pixel: Nws yog nrov to taub tias 1 pixel yog lub hauv paus chav tsev uas tsim ib daim duab. 2 lab pixels txhais tau hais tias muaj 2 lab qhov yooj yim units hauv daim duab.
Kev daws teeb meem: Cov lus piav qhia nrov yog qhov dav × qhov siab ntawm qhov screen, tau kawg, chav tsev yog pixels
Yog li nws tsis yog qhov nyuaj kom pom tias pixel yog cov khoom muaj nqis ntawm kev daws teeb meem. 1920 × 1080 = 2073600 = 2 lab pixels; 1600 × 1200 = 1920000 = 2 lab pixels. Qhov piv txwv no yuav tsum nkag siab yog tias koj tuaj yeem pom nws meej.
Yuav ua li cas paub qhov txawv 720P thiab 1080P?
Ob qho no yog los ntawm kev daws teeb meem. P tom qab 720P thiab 1080P txhais tau tias muaj kev vam meej scan (Lus Askiv: Progressive). K tom qab 4K txhais tau tias txhiab, uas txhais tau hais tias kab rov tav daws teeb meem yog li 4000 pixels.
Qhov kev daws teeb meem tsis dav × qhov siab, lub ntsiab lus ntawm kab los ntawm kab yuav tsum siab. yog li:
720P = 1280 × 720 feem ntau hu ua HD lossis siab txhais
1080P = 1920 × 1080 Feem ntau hu ua FHD lossis puv HD
4K = 3840 × 2160 feem ntau hu ua QFHD lossis Ultra HD
Dab tsi yog qhov txawv ntawm cov zaub zoo lossis qhov zoo ntawm lawv?
Kom nkag siab yooj yim, cia peb ua piv txwv los ntawm cov duab uas tuaj yeem nkag tau txhua hnub. Txhua tus neeg tau pom qhov kev daws teeb meem DVD, uas feem ntau zoo ib yam li kev daws teeb meem ntawm satellite TV, thiab kev daws teeb meem ntawm cable TV yog ib feem peb ntawm kev daws teeb meem ntawm satellite TV.
Thiab 720P yog plaub zaug lub ntsiab lus ntawm DVD, 1080P yog plaub npaug ntawm 720P, thiab 4K yog plaub npaug ntawm 1080P.
Yog li ntawd, 4K ultra-ntshiab daim duab yog unparalleled nyob rau hauv lub degree ntawm delicacy, yog li muag heev uas txawm cov plaub hau yuav pom meej meej!
Post lub sij hawm: Oct-19-2022