Lub PC saib xyuas siab muab cov duab pom tseeb dua qhov ua tau nrog cov ntxaij vab tshaus uas tsis tshua muaj kev daws teeb meem. Cov kev daws teeb meem siab feem ntau muaj qhov ntom ntom ntawm pixels ib nti dua li yav dhau los cov qauv TV. Qhov siab pixel ceev no ua rau cov duab ntse dua thiab pom tseeb dua vim tias tib neeg lub qhov muag tsis tuaj yeem tsim tawm ib tus pixels yooj yim.
Thaum nws los txog rau siab txhais PC saib, lub ntsiab lus siab txhais tau siv me ntsis sib hloov nrog kev daws teeb meem siab.
High Definition
High-txhais TV (HDTV) yog qhov muag muag rau lub vaj huam sib luag plasma thiab LCD. HDTV ua rau cov kis las, tsos, thiab Huab cua Channel zoo kawg nkaus yog tias cov yeeb yaj kiab tau tshaj tawm hauv HD.
Txawm tias lub TV lossis saib yuav muaj HD, cov ntsiab lus tso tawm yuav tsum yog HD zoo. Yog tias tsis yog, nws yuav raug kho kom haum rau cov zaub tab sis yuav tsis muaj tseeb HD.
Ntau tus neeg tsawg kawg muaj lub tswv yim tsis meej txog qhov kev txhais siab tshaj tawm rau TV: daim duab zoo nkauj, ntse nrog cov xim zoo nkauj dua li cov lus qhia qis dua.
Saib xyuas kev daws teeb meem thiab hloov pauv cov qauv video
Cov qauv tau pom meej dua qhov HD txhais tau li cas piv rau qhov nws txhais tau yav dhau los. Cov hauv qab no yog cov txheej txheem txhais rau HD saib xyuas kev daws teeb meem thiab nthuav qhia cov pixels hauv cov duab kab rov tav los ntawm ntsug:
- 1280x720 (tseem hu ua 720p)
- 1920x1080 (tseem hu ua 1080i)
- 1920x1080 nce qib (tseem hu ua 1080p)
- 2560x1440 (feem ntau pom hauv cov saib rau kev ua si)
kauj ruam tom ntej los ntawm HD yog Ultra High Definition lossis UHD (4K zoo) hauv TV thiab saib. Technically, 4K thiab UHD sib txawv. Tseem, thaum nws los txog rau yam uas muaj nyob rau hauv kev ua lag luam, ob yog interchangeable thiab xa mus rau tib yam khoom. Qhov kev daws teeb meem no yog nyob ib puag ncig 3840x2160, thiab cov no qee zaum hu ua 4K UHD saib.
Ib kauj ruam me me ntawm 4K UHD hu ua 5K. Cov saib hauv pawg no muaj kev daws teeb meem nyob ib puag ncig 5120 × 2880. 5K cov lus qhia feem ntau yog lub computer saib.
Qib dhau 4K UHD yog lub npe hu ua 8K UHD. Cov qauv txheej txheem thiab cov npe tuaj yeem sib txawv. Raws li cov ntsiab lus video no dhau los ua ntau dua, nws yuav raug xa mus rau lwm lub npe lag luam. Qhov kev daws teeb meem rau 8K UHD saib yog 7680x4320.
4K yuav nyob txhua qhov chaw hauv TV thiab saib. Tseem, muaj tseeb 4K cov ntsiab lus uas siv kom zoo dua ntawm qhov kev daws teeb meem no poob rau hauv qhov muaj. Ntau 4K cov yeeb yaj kiab thiab lwm cov ntsiab lus tau dhau los ua txhua lub sijhawm, tab sis nws tsis yog ib txwm muaj.
Progressive vs. Interlaced Scanning
Tus "i" thiab "p" qhia txog kev sib cuam tshuam thiab nce qib scanning, feem.
Kev sib cuam tshuam scanning yog cov thev naus laus zis qub ntawm ob. Lub PC saib uas siv interlaced scanning refreshes ib nrab ntawm kab rov tav pixel kab hauv ib lub voj voog thiab siv lwm lub voj voog kom rov ua dua lwm ib nrab thaum hloov kab. Qhov tshwm sim yog tias ob qhov kev tshuaj ntsuam yuav tsum tau ua kom pom txhua kab, ua rau qeeb thiab pom qhov muag plooj nrog flickering.
Kev soj ntsuam qib siab scans ib kab ua tiav ib zaug, ua ntu zus los ntawm sab saum toj mus rau hauv qab. Cov txiaj ntsig tau pom yog du thiab nthuav dav, tshwj xeeb tshaj yog rau cov ntawv nyeem, ib qho khoom siv ntawm cov ntxaij vab tshaus siv nrog PCs.
FAQ
Dab tsi yog HD Npaj saib?
HD Npaj txhais tau tias cov zaub tuaj yeem tso tawm 720p cov duab (1280 x 720 pixels). Txawm li cas los xij, HD Ready zaub tej zaum yuav tsis zoo li ntse, nplua nuj, los yog meej raws li qhov puv HD saib.
Tus saib puv HD yog dab tsi?
Full HD txhais tau tias cov zaub tuaj yeem tso tawm 1080p cov duab (1920x1080). Tag Nrho HD, lossis FHD, siv kev tshuaj ntsuam xyuas, uas yog qhov zoo dua rau cov lus tsa suab thiab kev tawm suab nrawm.
Koj tuaj yeem qhia tau li cas yog tias koj lub monitor yog HD?
In Windows, mus rau Settings > Display thiab nrhiav qhov Screen Resolution Settings. Ntawm Mac, xaiv Apple Button > About this mac > Display.
