Ultra HD: Nws yog dab tsi thiab vim li cas ho tsis siv nws?

by kim Kho tshiab: Lub Xya hli ntuj 9, 2022

Ultra HD, tseem hu ua 4K, yog tus qauv daws teeb meem tshiab tshaj plaws rau TV, koob yees duab, thiab lwm yam khoom siv.

Nrog plaub npaug ntawm cov pixels dua li cov kev daws teeb meem HD ib txwm muaj, Ultra HD muab cov duab ntse heev, nrog cov xim zoo dua thiab qhov sib txawv.

Qhov no ua rau Ultra HD daws teeb meem zoo tshaj plaws rau kev ua si, saib yeeb yaj kiab, thiab saib cov duab thiab yeeb yaj kiab.

Hauv tsab xov xwm no, peb yuav tham txog qhov zoo thiab qhov tsis zoo ntawm Ultra HD, thiab nws tuaj yeem txhim kho koj qhov kev pom.

Lub ntsiab lus ntawm Ultra HD

Ultra High Definition, los yog UHD luv luv, yog qhov kev txhim kho tshiab tshaj plaws hauv TV duab daws teeb meem thiab zoo. UHD ntes tau txog plaub npaug ntawm qhov kev daws teeb meem ntawm tus qauv HD, ua rau cov duab ntse dua uas tshwm sim ntawm qhov screen nrog qhov pom tseeb thiab siv zog. UHD kuj tseem muaj cov xim gamut dav dua li cov qauv HD lossis Standard Definition (SD) cov qauv thiab tus ncej siab dua rau kev ua si zoo dua. Cov ntsiab lus ntxiv yuav ntxim nyiam cov neeg saib hauv txoj hauv kev uas tsis tau pom dua ua ntej, tsim kom muaj kev pom loj dua li lub neej.

Hauv nws qhov kev daws teeb meem tag nrho, UHD siv 3840 x 2160pixels. Qhov ntawd yog kwv yees ob npaug ntawm kab rov tav (1024 pixels) thiab ntsug (768 pixels) daws teeb meem ntawm HD uas siv 1920 x 1080 pixels. Qhov no ua rau 4K duab vim nws muaj kwv yees li 4x ntau pixels ntau dua li cov duab HD niaj hnub. Nyob rau hauv kev sib piv rau HD, Ultra High Definition kom meej meej muaj superior duab nplua nuj thiab clarity nrog rau wider xim gamut peev xwm los tsim ntau natural saib xim ntawm lub screen yam tsis pom pixelation los yog qhov muag plooj thaum lub sij hawm txav.

Ultra HD daws teeb meem

Ultra HD (UHD) yog ib qho kev daws teeb meem ntawm 3840 x 2160 pixels, uas yog plaub zaug siab dua qhov kev daws teeb meem Full HD ntawm 1920 x 1080 pixels. UHD TVs tau dhau los ua neeg nyiam nyob rau ob peb xyoos dhau los, vim lawv muab cov duab zoo dua qub piv rau Full HD TVs. Kab lus no yuav hais txog qhov zoo ntawm Ultra HD daws teeb meem thiab saib seb koj yuav tsum paub dab tsi thaum yuav UHD TV.

4K Resolution

4K daws teeb meem, tseem hu ua UHD lossis Ultra HD, yog hom video uas muab plaub npaug ntawm qhov nthuav dav ntawm 1080p Full HD. Qhov kev nthuav dav no tso cai rau tus neeg saib xyuas kom pom cov ntsiab lus me me nrog qhov pom tseeb dua thiab pom tseeb.

Ultra HD daws teeb meem muab 3840 x 2160 pixels ntawm lub vijtsam piv rau 1920 x 1080 rau Full HD duab. 4K cov duab pom tseeb yog feem ntau pom nyob rau hauv TV loj thiab cov lus qhia nrog rau cov ntawv tshaj tawm digital siab dua li 4K koob yees duab, smartphones thiab cov kev pabcuam streaming zoo li Netflix thiab YouTube. Nrog rau kev txais yuav ntawm 4K xov xwm dhau los ua ntau dua nyob rau hauv ob qho tib si cov khoom siv hluav taws xob cov khoom siv hluav taws xob thiab cov chaw muab cov ntsiab lus digital, qhov kev daws teeb meem ntau ntxiv no ua rau muaj kev pom zoo rau nws cov neeg siv nrog cov duab zoo nkauj thiab cov xim zoo nkauj.

8K Resolution

Ultra HD (UHD) daws teeb meem, tseem hu ua 8K daws teeb meem, muab plaub npaug ntau pixels dua li 4K UHD daws teeb meem. 8K daws teeb meem muaj 16 npaug ntau pixels dua li Full HD daws teeb meem, ua rau tsis muaj qhov sib piv tsis zoo thiab pom tseeb ntawm cov duab. Kev siv 8K thev naus laus zis txhim kho kev pom los ntawm kev muab cov ntsiab lus tsis sib xws thiab pom tseeb ntawm cov duab. Nrog 8K daws teeb meem, cov neeg saib tuaj yeem txaus siab rau cov duab zoo dua thiab pom tseeb ntawm qhov loj dua qhov screen nrog qhov tob thiab kev ntxhib los mos ntau dua piv rau 4K lossis Full HD cov ntxaij vab tshaus.

Txhawm rau kom paub txog qib siab tshaj plaws ntawm cov duab zoo rau cov duab Ultra HD, cov neeg saib yuav xav tau cov zaub nrog 8K daws teeb meem thiab refresh npaum li LG OLED 65 "Class E7 Series 4K HDR Smart TV - OLED65E7P lossis Sony BRAVIA XBR75X850D 75" chav kawm (74.5). „diag). Cov zaub no muaj lub cim xeeb txaus los qhia txog yim lab pixels thoob plaws lawv qhov chaw tag nrho ntawm txog rau caum fps (thav duab ib ob). Rau cov neeg nyiam ua si uas xav kom txaus siab rau lawv cov npe nyiam ntawm cov ntxaij vab tshaus loj tshaj plaws uas tsis muaj kev cuam tshuam kev ua tau zoo thiab kev pom, 8K yog txoj hauv kev mus!

Ultra HD Technology

Ultra HD, tseem hu ua UHD lossis 4K, yog tus qauv daws teeb meem video tshiab uas muaj ob npaug ntawm cov pixels raws li tus qauv 1080p HD daws teeb meem. Ultra HD yog hom digital video nrog kev daws teeb meem ntawm 3840 los ntawm 2160 pixels, thiab nws muab kev pom zoo dua vim nws cov pixels ntau dua. Cov nqe lus no yuav nkag mus rau hauv qhov tob ntawm thev naus laus zis tom qab Ultra HD thiab cov txiaj ntsig ntawm kev saib cov ntsiab lus hauv qhov kev daws teeb meem no.

High Dynamic Range (HDR)

High Dynamic Range (HDR) yog cov cuab yeej siv hauv Ultra HD TVs uas muaj ntau qhov sib txawv thiab xim ntau dua li kev tshaj tawm UHD li niaj zaus, ua rau cov duab zoo li qub nrog cov ntsiab lus ntau dua. HDR tso cai rau TVs los tsim cov xim dawb, nrog rau cov qib dub tob dua, tsim kom muaj qhov zoo nkauj dua. Qhov ci ntsa iab ntxiv kuj txhais tau hais tias cov xim zoo li pom tseeb dua, txhim kho cov duab lossis yees duab ua rau ntawm cov zaub.

HDR yog ua tau los ntawm kev siv ob yam - TV nws tus kheej thiab cov ntsiab lus uas tau saib. HDR-enabled TVs yuav tsum tuaj yeem lees txais thiab ua cov ntaub ntawv los ntawm HDR video teeb liab ua ntej nws tuaj yeem tso tawm kom raug ntawm lub vijtsam. Ntxiv rau qhov muaj HDR-tshaj teeb tsa, cov neeg saib yuav tsum paub tseeb tias lawv tau nkag mus rau UHD cov ntsiab lus uas txhawb nqa High Dynamic Range (HDR). Qhov no tuaj yeem yog cov kev pabcuam streaming xws li Netflix lossis Amazon Prime Video; lub cev tawm xws li UHD Blu-duab tshav lossis DVDs; lossis tshaj tawm cov ntsiab lus los ntawm cov chaw muab TV xws li cable lossis satellite raws.

Wide Color Gamut (WCG)

Ultra HD (tseem hu ua 4K lossis UHD) thev naus laus zis muab tag nrho qib tshiab ntawm cov duab zoo, uas suav nrog kev txhim kho kev daws teeb meem thiab xim spectrum. Tshwj xeeb, Ultra HD nthuav dav ntau yam xim uas tuaj yeem siv hauv txhua daim duab los tsim cov kev pom zoo dua qub. Qhov no yog ua los ntawm kev siv tshuab hu ua Wide Color Gamut (WCG).

WCG ua rau kev siv cov duab niaj hnub nrog nthuav dav xim muaj peev xwm. Nws tso cai rau ntau hom xim muaj rau cov neeg tuaj saib siv rau hauv ib puag ncig cov duab digital. Qhov qis-kawg xim gamut siv nyob rau hauv Standard Definition thiab High Definition TVs yog txwv los ntawm lawv ntau nqaim band kev pab them nqi ntawm liab, ntsuab, xiav (RGB) xim. Nrog kev pab los ntawm WCG, Ultra HD muaj peev xwm tsim tau ntau tshaj li ib lab kev sib txuas rau txhua tus nqi RGB yooj yim thiab muaj peev xwm tsim cov xim uas muaj zog dua li yav dhau los.

Los ntawm kev txhim kho tag nrho cov xim ua haujlwm, kev tshaj tawm xov xwm yuav zoo li muaj zog dua thiab muaj txiaj ntsig ntawm Ultra HD TV dua li ntawm cov ntsiab lus txhais lossis siab txhais TVs yog tias lawv tsawg kawg txhawb cov thev naus laus zis no - feem ntau siab dua UHD TVs yuav cia li suav nrog hauv lawv. daim ntawv qhia tshwj xeeb. Tsis tas li ntawd, cov ntsiab lus sib txawv xws li kev ua yeeb yaj kiab thiab cov yeeb yaj kiab yuav tshwm sim ntau crisper thiab catchier tsuas yog vim lawv qhov kev nrhiav pom tshiab ntawm cov xim muaj thaum twg Wide Color Gamut muaj nyob rau ntawm qhov screen.

Tus Ncej Ncej Siab (HFR)

High Frame Rate (HFR) yog qhov tseem ceeb ntawm Ultra HDTV saib kev paub. HFR tso cai rau cov duab du uas txo cov suab tsis meej thiab xa cov duab ntshiab. Thaum ua ke nrog kev daws teeb meem ntau ntxiv thiab cov xim thev naus laus zis, qhov no muab kev pom zoo li tsis tau ua dhau los.

HFR tus nqi feem ntau yog li ntawm 30 txog 120 ntas ib ob (fps). Qhov no tuaj yeem ua rau cov animation smoother thiab ntau lub neej zoo li kev ua kis las tshaj tawm cov duab piv rau 30 fps TV tshaj tawm. Cov ncej siab tshaj TVs muab kev nthuav dav ntxiv, txo qis cov lus tsa suab latency, thiab tsis tshua pom qhov muag plooj ua rau kev txhim kho tag nrho qhov pom kev zoo. Thaum saib Ultra HD cov ntsiab lus nrog cov cuab yeej siv tau xws li Blu-duab tshav player lossis kev pabcuam streaming, HFR pab kom koj tau txais txiaj ntsig zoo tshaj plaws ntawm koj lub vijtsam Ultra HDTV.

Cov txiaj ntsig ntawm Ultra HD

Ultra HD, lossis 4K, tau dhau los ua tus qauv hauv cov yeeb yaj kiab siab. Nws muab cov duab ntse dua, cov ncauj lus kom ntxaws dua li HD niaj hnub thiab yog qhov yuav tsum muaj rau cov neeg tsim cov ntsiab lus loj. Kab lus no yuav tshawb txog ntau yam txiaj ntsig ntawm Ultra HD, xws li txhim kho xim raug, txhim kho kev daws teeb meem, thiab txhim kho qhov sib txawv. Cia peb saib qee qhov zoo ntawm Ultra HD.

Txhim kho duab zoo

Ultra HD, tseem hu ua 4K lossis UHD, muab cov duab pom tseeb tshaj plaws thiab zoo tshaj plaws muaj hnub no. Nws muaj plaub zaug qhov kev daws teeb meem ntawm HD TV niaj hnub, muab cov ntsiab lus ntau dua thiab cov duab zoo li lub neej zoo li qub. Qhov no txhais tau hais tias cov yeeb yaj kiab thiab cov yeeb yaj kiab raug ntes hauv Ultra HD zoo dua thiab muaj zog dua ntawm Ultra HD TVs thaum piv rau cov ntsiab lus HD niaj hnub. Nrog rau ntau qhov kev daws teeb meem ntawm cov xim ntau dua li cov qauv xim TVs, Ultra HD TVs muab kev ua kom tiav zoo dua hauv cov xim xim nrog cov duab pom dav dua - txhim kho kev pom zoo rau txhua qhov TV yeeb yaj kiab lossis yeeb yaj kiab. Tau kawg, txhua qhov no txhais tau tias muaj kev pom zoo dua nrog cov ntsiab lus zoo dua thiab txhim kho cov duab zoo dua piv rau lwm lub TV.

Nce immersion

Ultra HD (feem ntau hu ua UHD lossis 4K) yog kev hloov kho dua li cov qauv kev txhais lus siab. Nws muaj plaub npaug ntawm cov kev daws teeb meem ntawm HD niaj hnub, xa cov ntsiab lus zoo kawg nkaus uas tso cai rau koj pom meej dua. Cov xim muaj zog dua, cov ntsiab lus sib txawv, thiab txhim kho qhov pom tseeb hauv Ultra HD tuaj yeem ua tiav qib siab dua ntawm qhov tseeb thiab ua rau koj qhov kev pom zoo dua.

Ultra HD thev naus laus zis txhawb kev daws teeb meem txog 4096 x 2160 pixels, muab kev daws teeb meem zoo dua li tus qauv Full HD ntawm 1920 x 1080 pixels. Nrog rau ntau yam xim uas muaj peev xwm, nws muab cov xim xim zoo nkauj txaus kom hu ua "xim tiag". Vim tias lub TV tuaj yeem tso saib ntau cov duab ib zaug, UHD muab cov duab rau koj los ze zog rau qhov tseeb - tshwj xeeb tshaj yog qhov kev ua si thiab kev ua yeeb yaj kiab muaj kev txhawj xeeb.

Ib cag los ntawm kev daws teeb meem ntau dua, Ultra High Definition TV kuj tseem muaj cov nqi tshiab txog li 120 Hz piv rau 60 Hz li niaj zaus uas pab thaum saib cov yeeb yaj kiab nrog cov duab nrawm nrawm vim tias muaj kev hloov pauv ntawm cov thav duab txo qis pom qhov muag plooj thiab jagged npoo. Tsis tas li ntawd, TVs nrog Ultra HD muab lub kaum sab xis pom dav rau ntau tus neeg saib kom txhua tus tuaj yeem txaus siab rau daim duab meej txawm tias lawv zaum qhov twg hauv kev sib raug zoo rau TV teeb nws tus kheej.

Suab nrov zoo

Ultra HD muab kev ua haujlwm zoo dua qub piv rau HD li niaj zaus. Nws ua haujlwm los ntawm kev faib tawm suab ntau dua ntawm cov channel, muab lub suab meej dua uas yog qhov xav tau ntau dua thiab nthuav dav. Qhov kev nthuav tawm suab nrov no tso cai rau kev nthuav dav ntau dua hauv cov suab paj nruag thiab kev sib tham, muab rau kev paub zoo tag nrho. Ultra HD kuj tseem ua rau nws yooj yim dua rau tso cov khoom thiab cov cim hauv qhov chaw tshwj xeeb hauv soundscape, nrog rau muab qhov tseeb zoo dua rau kev ua si ntau ntau. Tag nrho cov nta no ua rau muaj kev lom zem ntau dua thaum saib cov yeeb yaj kiab lossis ua si video games.

xaus

Hauv kev xaus, Ultra HD yog qhov hloov pauv sai sai thiab cov neeg siv khoom siv thev naus laus zis uas tau teeb tsa kom xa cov kev daws teeb meem zoo dua qub nrog rau cov duab thiab cov yeeb yaj kiab uas tshwm sim ntau dua. Thaum muaj ntau ntau hom UHD ntawm kev ua lag luam, lawv txhua tus muaj kev hloov kho dua lawv cov kev daws teeb meem qis dua, tso cai rau cov neeg siv khoom tau txais kev daws teeb meem ntau dua zoo ib yam li peb lub qhov muag pom hauv lub neej niaj hnub. Txawm hais tias koj tab tom nrhiav hloov kho koj lub TV lossis saib, lossis tab tom xav txog cov ntsiab lus digital streaming xws li cov uas tau muab los ntawm Netflix, ib qho Ultra HD ntaus ntawv tuaj yeem muab kev paub rau koj.

Nyob zoo, Kuv yog Kim, niam thiab ib tus neeg nyiam nres nrog keeb kwm yav dhau los hauv kev tshaj tawm thiab kev txhim kho lub vev xaib. Kuv muaj kev mob siab rau kev kos duab thiab kev ua yeeb yam, thiab tam sim no kuv tab tom dhia taub hau ua ntej mus rau hauv lub ntiaj teb nres. Nrog rau kuv qhov blog, Kuv tabtom qhia kuv cov kev kawm nrog koj.