Ntau tus neeg tau tsiv tawm ntawm cov qauv txhais lus analog TV hauv kev pom zoo ntawm kev txhais siab (HD), uas yog hais txog kev daws teeb meem ntawm 720p, 1080i, thiab 1080p. HDTVs muaj 16: 9 nam piv, zoo ib yam li cov yeeb yaj kiab ua yeeb yaj kiab. Cov TVs no muaj nrog cov ntxaij vab tshaus siab dua, muab qhov pom tseeb dua, xim, thiab nthuav dav.
Kev daws teeb meem yog HDTV qhov muag khoom loj tshaj plaws. Peb piv 720p, 1080i, thiab 1080p los pab koj xaiv qhov zoo tshaj plaws rau koj qhov kev txaus siab saib TV.
Tus qauv 1080p muaj tag nrho tab sis hloov 1080i. Koj tseem tuaj yeem pom TVs nrog 1080i cov ntxaij vab tshaus, tab sis cov no tsis tshua muaj. Ib yam li ntawd, 4K daws teeb meem thiab UHD tau pib hloov HD, txawm hais tias koj tseem tuaj yeem pom ntau HDTVs ntawm lub khw.
Kev Tshawb Nrhiav Txhua Yam
| 720p | 1080i | 1080p |
|---|---|---|
| 1280 pixels x 720 pixels | 1920 pixels x 1080 kab | 1920 x 1080 pixels |
| Kev ntsuas qib siab: Kos tag nrho cov pixels ib zaug. | Interlaced: Muab faib ua ob pawg ntawm 540 kab txhua. | Kev ntsuas qib siab: Kos tag nrho cov pixels ib zaug. |
Peb qhov kev daws teeb meem HDTV yog 720p, 1080i, thiab 1080p. Tus lej sawv cev rau tus naj npawb ntawm kab kab rov tav uas tsim cov duab. Tsab ntawv piav qhia txog hom kev luam theej duab siv los ntawm TV los tso saib daim duab: nce qib lossis sib cuam tshuam.
Kev daws teeb meem tseem ceeb vim tias ntau kab txhais tau tias muaj duab zoo dua. Qhov no yog ib lub tswv yim zoo sib xws rau cov duab digital thiab yuav ua li cas dots-per-inch txiav txim siab luam tawm zoo.
1080i thiab 1080p yog cov kev daws teeb meem siab dua 720, tab sis ob qho tib si tsis zoo ib yam. Tej zaum koj yuav xav xav txog 1080p vim tias txoj kev ua tau zoo dua nws ua cov duab rau ntawm qhov screen.
Screen Resolution: Loj dua Zoo dua
| 720p | 1080i | 1080p |
|---|---|---|
| 720 kab kab rov tav | 1080 kab kab rov tav | 1080 kab kab rov tav |
| Progressive scan | Kev sib txuas scan | Progressive scan |
Feem ntau, qhov kev daws teeb meem ntawm TV ntau dua, cov duab zoo dua, thiab tus nqi siab dua.
720p muaj cov duab daws teeb meem ntawm 1280 pixels los ntawm 720 kab. Nws yog thawj HDTV daws teeb meem. Nws tsis zoo li qub vim cov nqi tau nqis los ntawm 1080 qauv. Los ntawm kev sib piv, 720p TV muaj ob zaug qhov kev daws teeb meem ntawm ib daim duab analog TV.
1080i muaj qhov daws teeb meem ntawm 1920 pixels los ntawm 1080 kab kab rov tav. Txawm li cas los xij, nws yog interlaced, txhais tau hais tias cov kab tau pleev xim rau ntawm qhov screen hauv ob kis ntawm 540 kab txhua. Daim duab zoo txaus rau cov ntsiab lus qeeb tab sis tsis zoo li qhov xav tau rau cov khoom txav ceev. 1080i yog ib zaug tus qauv rau HDTVs. Qhov ntawd tsis yog lawm. Nws qhov zoo tsis zoo dua li 720p TV.
1080p muaj kev daws teeb meem ntawm 1920 los ntawm 1080 pixels. Nws yog ib qho kev nthuav qhia scan es tsis yog interlaced. Qhov ntawd txhais tau hais tias txhua kab yog scanned nyob rau hauv ib tug sequential es tsis txhob alternate order, muab ib daim duab nrog ib tug tag nrho 2.07 lab pixels. Qhov no yog tam sim no yog hom HDTV muag saum toj kawg nkaus, thiab nws muab cov duab zoo tshaj plaws ntawm peb tus qauv hais ntawm no.
4K daws teeb meem, uas tau dhau los ua tus qauv sai, muaj plaub zaug pixel daws teeb meem, lossis ob zaug ntawm kab kev daws teeb meem (2160p), ntawm 1080p.
Nqe: Koj Tau Txais Yam Koj Them Rau
| 720p | 1080i | 1080p |
|---|---|---|
| Ntau affordable. | Nyiaj kub. |
Tus nqi ntawm lub TV siab txhais txawv me ntsis. Nws nyob ntawm ntau yam, suav nrog hom, nta, thiab cov cuab yeej tso saib. Hom zaub yog ib feem ntawm cov khoom siv kho vajtse. Lwm yam uas ua rau tus nqi suav nrog cov zaub loj, muaj cov yam ntxwv ntse, thiab hom tshuaj ntsuam (LCD lossis LED).
Feem ntau, 720 cov ntxaij vab tshaus yog pheej yig dua 1080 cov ntxaij vab tshaus. Tsis pub dhau 1080 qib, cov kev tshawb fawb nce qib tau kim dua li kev sib cuam tshuam. Txawm li cas los xij, nyob ntawm lwm yam, cov kev sib piv no yuav tsis yog qhov tseeb.
kab hauv qab
Piv txwv tias tag nrho peb ntawm cov TV no yog nyob rau hauv koj cov nqi ntau-thiab 4K TV tsis yog-1080p TV yog qhov kev xaiv zoo tshaj. Cov qauv 720p thiab 1080i tso siab rau cov thev naus laus zis qub uas maj mam muab txoj hauv kev rau kev daws teeb meem siab dua. Lub 1080p ntaus ntawv muab qhov kev daws teeb meem zoo tshaj plaws thiab pom kev. Txawm li cas los xij, rau TVs uas muaj 32 ntiv tes lossis me dua, koj yuav tsis pom qhov txawv ntawm cov duab ntawm 1080p thiab 720p zaub.
Cov lus nug nquag
- 720p yog dab tsi, thiab txhais li cas? Cov hom 720p tseem hu ua widescreen HDTV. Lub 720qhia txog cov kab kab rov tav scan pom hauv daim duab, thiab p sawv rau kev nce qib scan. 720p hom ntawv muaj qhov sib piv ntawm 16: 9.
- Muaj pes tsawg teev ntawm 720p video tuaj yeem tuav tau 32 GB? Tus naj npawb ntawm cov teev 720p video tuaj yeem sib txawv nyob ntawm ntau yam, suav nrog cov video compression, lub koob yees duab bitrate, thiab tus yees duab tus ncej tus nqi. Qhov nruab nrab, 32 GB nco daim npav yuav tuav ntawm 3 thiab 5 teev ntawm 720p video.
- Ntau npaum li cas pixels yog 720p? Cov hom 720p muaj qhov daws teeb meem ntawm 1280 x 720 pixels. Txhawm rau nrhiav tag nrho cov pixels, muab 1280 los ntawm 720. Cov lus teb yog 921, 600 pixels (uas tsawg dua ib megapixel).
