Thaum yuav khoom TV, zaub, lossis tsev ua yeeb yam, koj yuav tau hla cov ntsiab lus FHD thiab UHD, feem ntau nrog cov lej xws li 720p, 1080i, thiab 1080p. Tsis txhob cia koj ob lub qhov muag ci dhau vim tias cov ntsiab lus no tseem ceeb, cuam tshuam rau tus nqi thiab qhov zoo ntawm cov zaub. Peb tau tshuaj xyuas ob qho tib si los pab koj xaiv qhov zoo tshaj plaws rau koj cov kev xav tau kev lom zem.
Kev Tshawb Nrhiav Txhua Yam
- Pov siab txhais 1080p daws teeb meem.
- 1, 920 x 1, 080 pixels.
- Qhov txawv ntawm qhov kev txhais siab (HD), uas suav nrog 720p (1280 x 720) thiab 1080i (1920 × 1080 interlaced) kev daws teeb meem.
- Tsis zoo li 1080i, uas muaj tib lub pixel daws teeb meem, FHD (1080p) siv kev tshuaj ntsuam xyuas, uas zoo dua rau cov lus tsa suab thiab cov ntsiab lus nrawm.
- Common rau me TVs.
- suav nrog 4K UHD thiab 8K UHD daws teeb meem.
- 4K UHD: 3, 840 x 2, 160 pixels.
- 8K UHD: 7680 x 4320 pixel.
- Technically, 4K UHD tsis yog 4K daws teeb meem, tab sis nws nyob ze txaus. (4K daws teeb meem yog 4096 x 2160.)
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4K UHD suav nrog plaub zaug ntau npaum li pixels, lossis ob zaug ntawm qhov kev daws teeb meem, FHD. Siv cov tshuaj ntsuam xyuas ua kom pom tseeb rau kev ua kom raug.
- Common rau TV loj.
Los ntawm txhua qhov kev ntsuas, UHD muab cov duab zoo dua, kev daws teeb meem siab dua li FHD (1080p). Kev lag luam tawm yog tias UHD raug nqi ntau dua. Yog tias koj txhawj xeeb txog koj cov peev nyiaj ntau dua li kev daws teeb meem, FHD muaj kev pom zoo zoo kawg nkaus. UHD (4K) me ntsis nce qhov kev paub, tshwj xeeb tshaj yog ntawm cov ntxaij vab tshaus loj.
A 1080p TV yog FHD TV. FHD sawv cev rau Full HD lossis Full High Definition thiab hais txog 1080p video daws teeb meem, uas yog 1, 920-pixel kab los ntawm 1, 080-pixel kab. Qhov ntawd sib npaug rau 2, 073, 600 tag nrho pixels lossis txog 2 megapixels. Qhov "p" hauv 1080p yog hais txog kev nce qib scanning, uas txhais tau hais tias txhua kab ntawm pixels raug tshuaj xyuas hauv qhov kev txiav txim ua ntu zus. Qhov no txawv ntawm interlaced, xws li nyob rau hauv 1080i, uas scans pixel kab nyob rau hauv ib qho kev txiav txim, uas yuav ua rau kom blurring.
UHD sawv cev rau Ultra HD lossis Ultra Siab txhais. Nws yog qee zaum hu ua 4K, txawm hais tias UHD daws teeb meem tsis tas 4K daws teeb meem. Ob hom UHD yog 4K UHD thiab 8K UHD. Ob leeg yog cov tshuaj ntsuam xyuas ua tau zoo, tab sis 4K UHD yog ntau dua thiab pheej yig dua. 4K UHD daws teeb meem yog 3, 840 x 2160, uas sib npaug rau 8, 294, 400 pixels, lossis txog 8 megapixels. Kev daws teeb meem rau 8K UHD yog 7680 × 4320 pixels lossis txog 33 megapixels.
4K yog qhov tseeb dua 4096 x 2160 pixels, uas yog me ntsis dav dua nrog tib qhov siab. Tag nrho cov pixels yog 8, 847, 360. Cov qauv no yog siv hauv kev lag luam xinesmas.
UHD muaj plaub npaug ntawm pixels (lossis ob zaug ntawm kab thiab kab) raws li FHD. Qhov ntawd txhais tau tias plaub FHD cov duab tuaj yeem haum rau hauv qhov chaw ntawm ib daim duab UHD, ua ob npaug ntawm qhov kev daws teeb meem tag nrho.
UHD TVs feem ntau siv LCD (xws li LED / LCD thiab QLED) lossis OLED thev naus laus zis. Txawm hais tias UHD yog raws li kev daws teeb meem, TV tsim tau ntxiv qee qhov peev xwm, xws li HDR thiab dav xim gamut, kom xa qhov pom pom loj dua li kev daws teeb meem zoo dua nws tus kheej.
Cov ntsiab lus muaj: FHD vs. UHD
- Blu-ray disc: Blu-duab tshav cov ntsiab lus yog 1080p.
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Cov ntsiab lus streaming: Feem ntau cov kev pabcuam streaming zoo li Netflix thiab Hulu muaj cov phiaj xwm sib txawv nyob ntawm seb qhov kev daws teeb meem zoo li cas koj xav tau.
- TVs thiab cov lus qhia: Feem ntau cov TV, cov lus qhia, thiab cov saib tau ua niaj hnub no-xws li qee qhov pheej yig-feature 1080p daws teeb meem.
- Cov koob yees duab digital: Feem ntau lub koob yees duab-xws li iav tsis muaj iav, DSLR, thiab webcams, nrog rau lub laptop thiab lub koob yees duab hauv smartphone-muab 1080p lossis siab dua.
- Video game consoles: Feem ntau cov video game consoles txhawb FHD tab sis cov ntsiab lus siab dua los ntawm cov kev ua si uas tau ua hauv qhov kev daws teeb meem qis dua.
- Cov khoom siv txawb: Qee lub xov tooj high-end thiab ntau cov ntsiav tshuaj muaj qhov daws teeb meem 1080p.
- UHD Blu-duab tshav disc: Txhawm rau saib 4K Blu-duab tshav cov ntsiab lus, koj xav tau UHD Blu-duab tshav player thiab discs.
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Cable thiab satellite cov kev pabcuam: Comcast thiab Altice yog tib txoj kev pabcuam cable uas muaj cov ntsiab lus UHD, tab sis kev xaiv tsuas yog txwv. Rau kev sib txuas lus satellite, UHD cov ntsiab lus raug txwv tab sis muaj los ntawm ob qho tib si Direct TV thiab Dish Network.
- UHD streaming: Netflix, Vudu, thiab Amazon Prime Video muab qee cov ntsiab lus UHD. Cov kev pabcuam no muaj nyob rau ntawm cov khoom siv streaming xws li Roku Stick, Amazon Hluav Taws TV, Apple TV, thiab Google Chromecast, nrog rau xaiv UHD Smart TVs. Internet ceev ntawm 15 txog 25mbps yog xav tau rau kev saib ruaj khov.
Txhawm rau saib cov ntsiab lus hauv FHD, koj xav tau txhua lub platform thiab kev sib txuas hauv cov khoom siv los txhawb FHD. Ib yam mus rau UHD. Qhov ntawd txhais tau hais tias lub TV, cov ntsiab lus, HDMI cable, kev sib txuas ceev, thiab cov khoom siv streaming lossis media player txhua yam yuav tsum yog UHD-tshaj.
Feem ntau tshaj tawm thiab xov tooj cua TV cov ntsiab lus tsis muaj nyob hauv 1080p / FHD lossis 4K / UHD. Feem ntau cov chaw nres tsheb thiab cov chaw muab cable tshaj tawm hauv 720p lossis 1080i HD. Cov txheej txheem tshaj tawm tiam tom ntej (ATSC 3.0) cog lus tias yuav xa cov kev xa tawm hauv huab cua hauv 4K daws teeb meem, nrog rau HD thiab SD.
A Full HD TV tuaj yeem tso saib cov teeb liab daws teeb meem qis dua ntawm kev ua yeeb yaj kiab lossis ua tiav. Upscaling tsis zoo li qhov tseeb FHD tab sis muab cov duab zoo dua. Upscaling zoo txawv ntawm hom thiab qauv thiab muaj nyob rau hauv ob qho tib si TVs thiab video game consoles.
FHD vs. UHD: Hom Cables thiab Kev Sib Txuas Yuav Siv Li Cas?
- High-speed HDMI cable.
- Component Video (tso tseg rau SD daws teeb meem tom qab 2011).
- YUSB.
- Ethernet.
- Wi-Fi.
- Chromecast/Amazon Fire TV Stick.
- High-speed HDMI cable.
- YUSB.
- Ethernet.
- Wi-Fi. (Yuav tsum tau ceev ceev.)
- Chromecast/Amazon Hluav Taws TV Stick. (Yuav tsum tau ceev ceev.)
Txawm hais tias muaj xov tooj lossis wireless, cov teeb liab video xav tau kev sib txuas kom raug xa cov ntsiab lus hauv lawv cov hom ntuj. Feem ntau cov lus qhia muaj ntau tus tswv tsev ntawm lwm txoj kev sib txuas.
Kev sib txuas nrog
HDMI: HDMI yog tus qauv xaim txuas rau FHD thiab UHD cov khoom siv. Muaj plaub hom HDMI cables, tab sis rau FHD thiab UHD, koj xav tau ib qho uas tau sau tias muaj kev kub ceev. High-speed HDMI cables nqa ob qho tib si FHD thiab UHD cov ntsiab lus thiab ua haujlwm nrog Blu-duab tshav thiab Ultra HD Blu-duab tshav players, feem ntau cov xov xwm streamers, cable thiab satellite thawv, video game consoles, PCs, thiab laptops.
Cov khoom siv nrog Display Port, DVI, lossis VGA kev sib txuas tuaj yeem txuas nrog FHD lossis UHD TV's HDMI inputs ntawm adapters lossis adapter cables. Nws tsis tshua pom TV nrog DisplayPort kev sib txuas, tab sis koj tuaj yeem pom DVI lossis VGA kev sib txuas ntawm qee qhov qub FHD thiab UHD TVs.
Composite Video: Analog qhov khoom siv-xws li VCRs, DVD recorders, analog camcorders, thiab DVD players tsis muaj HDMI outputs- tuaj yeem txuas rau feem ntau FHD thiab UHD TVs siv cov kev sib txuas video, tab sis cov teeb liab txo mus rau txheem txhais (480i). Kev sib txuas video sib txuas tsis tuaj yeem hla HD analog lossis digital video signals.
Component Video: Qhov kev sib txuas no siv peb lub RCA txuas nrog liab, ntsuab, thiab xiav xaus. Cov khoom sib txuas video tau tsim los hloov cov kev daws teeb meem mus txog 1080p. Txij li xyoo 2011, txawm li cas los xij, lawv tau raug txwv rau tus qauv txhais (SD).
USB: Ntau FHD thiab UHD TVs muab tsawg kawg ib qho chaw nres nkoj USB. Qee lub TV yuav suav nrog qhov no tsuas yog siv rau kev pabcuam. Txawm li cas los xij, feem ntau tso cai rau rov ua cov duab tseem, video, thiab cov ntaub ntawv audio ntawm plug-in flash drives.
Qee lub ntse FHD thiab UHD TVs tso cai rau kev sib txuas ntawm USB keyboard lossis nas mus rau cov ntawv qhia zaub mov, ua kom yooj yim rau kev xauj cov apps lossis nkag mus rau cov ntawv pov thawj.
Ethernet: Muaj nyob ntawm qee qhov FHD lossis UHD ntse TVs, Ethernet (aka LAN) tso cai rau koj txuas lub TV rau lub network ntawm lub router. Thaum txuas nrog Is Taws Nem, TV tuaj yeem teeb tsa firmware hloov tshiab, ua si digital media, thiab tshaj tawm cov yeeb yaj kiab thiab TV qhia.
Wireless Connections
Wi-Fi: Feem ntau Ntse FHD thiab UHD TVs muab Wi-nkaus txuas. Rau streaming UHD cov ntsiab lus, qhov kev pabcuam sai dua, qhov zoo dua. Kev sib txuas ceev yog qhov tsis sib xws nrog Wi-Fi ntau dua li nrog Ethernet. Yog li, tshwj tsis yog tias muaj kev sib txuas ceev heev, UHD cov ntsiab lus tuaj yeem tshaj tawm ntawm qhov kev daws teeb meem qis dua. Tshwj xeeb tshaj yog kev sib txuas qeeb tuaj yeem txo cov ntsiab lus FHD ib yam nkaus.
Screen Mirroring/Casting: Screen mirroring devices like Chromecast and Amazon Fire TV Stick cast screen content from a smartphone, tablet, or PC. Ib yam li nrog rau lwm lub platform, koj yuav xav tau cov cuab yeej casting thiab cov ntsiab lus streaming los txhawb koj qhov kev daws teeb meem. Vim tias cov cuab yeej casting ua haujlwm dhau Wi-Fi, qhov nrawm txaus yuav tsum ua kom cov ntsiab lus daws teeb meem siab.
FHD vs. UHD: Kab hauv qab
UHD yog lub qab zib ntawm cov qoob loo thaum nws los txog rau cov duab zoo, thiab ntau thiab ntau cov ntsiab lus thiab thev naus laus zis yuav raug qauv rau UHD xyoo tom ntej. Txawm li cas los xij, FHD tseem yog qhov kev pom zoo, ib qho uas ntau tus neeg pom qhov tshwj xeeb. Yog tias koj txiav txim siab ntawm ob, ua raws li hauv qab no:
- Nws tsis tshua pom FHD TV hauv qhov screen loj dua 49-nti lossis UHD TV nrog lub vijtsam me dua 40-nti. Ntsuas koj lub TV kom paub tseeb tias qhov loj me koj xaiv haum rau koj qhov chaw saib.
- Nco ntsoov tias koj nkag mus rau cov ntsiab lus uas tau nruab rau FHD lossis UHD saib. Qhov ntawd suav nrog kev sib txuas ntawm HDMI, cable lossis satellite pob, cov kev pabcuam streaming, Blu-duab tshav qauv, thiab internet ceev.
- Nco ntsoov tias FHD lossis UHD TV muab kev sib txuas uas koj xav tau rau lwm yam khoom siv uas koj xav txuas, xws li kav hlau txais xov, disc player, streaming devices, thiab video game consoles.
- FHD thiab UHD TVs los ntawm ntau tus nqi ntawm ob peb puas duas las mus rau ntau txhiab. Tus nqi ntsuas nrog qhov loj me tab sis kuj tso saib tech, daws teeb meem, thiab ntse nta.
