Kuthe malunga nomntu wonke uye wasuka kumabonakude e-standard analog kwiinkcazo ze- TV eziphezulu. Banobukhulu bomlinganiselo we-16: 9, obufana nokubonakala kwesikrinti se-movie yeshashalazi, kwaye zifumaneka nezikrini eziphezulu zokusombulula, ezibonisa ukucaca kwazo, umbala, kunye neenkcukacha. Isigqibo asinakuqiniseka ukuba i-HDTV inqaku elikhulu lokuthengisa.
Yintoni eyahlukileyo kwiSigqibo?
Ngokubanzi, iphakamileyo isisombululo seTV, ifanelekiso umfanekiso kwaye uphakamise ithegi yentengo. Ngoko ke, ukuba uthengisa iTV, kufuneka ukwazi ukuba isisombululo sithetha ntoni kwaye ufumana ntoni imali yakho.
Iinqunto ze-HDTV ezinokuhlawuleka zi-720p, i-1080i kunye ne-1080p-inani limelele kwinani lemizila eyenza umfanekiso, kwaye ileta ichaza uhlobo lokutshekisha olusetyenziswa yiTV ukubonisa umfanekiso: ukuqhubela phambili okanye ukuhamba phakathi. Imiba yeSombululo kuba ezinye iimizila zithetha umfanekiso ongcono. Le ngcamango efanayo kwiifoto zedijithali kunye nendlela i-dpi inquma ngayo umgangatho wokuprinta.
- I-720p inesisombululo somfanekiso wee-1280 pixels ngemigca 720. I-720p yayiyisisombululo sokuqala se-HDTV. Iso isetyenziswa kodwa ayinakuthandwa njengokuba kwakukho ngoku ukuba amaxabiso ayehla kwii-TV ze-1080. Ngokuthelekisa, i-TV ye-720p inesixazululo sesibini somfanekiso we-analog TV.
- I-1080i inesisombululo see-pixels ze-1920 ngo-1080 imigca engezantsi. Nangona kunjalo, i-interlaced so imigca ifakwe kwi-skrini kwiipasiti ezimbini zeendlela ezi-540 nganye. Ubungakanani bomfanekiso buhle ngokubambisa izinto ezinokuhamba ngokukhawuleza kodwa kungenanto ifanelekayo kwizinto ezihamba ngokukhawuleza. I-1080i yayisisigxina kwi-HDTV kodwa ayikho. Umgangatho walo awulunge ngakumbi kuneTV 720p.
- I-1080p inesisombululo se-1920 ngama-pixels ka-1080, kwaye i-scan scan, ayifumanekanga, ngoko ke inika umfanekiso ngeeplisili eziyi-2.07 yezigidi. Oku okwangoku kuthengiswa kweTV kumgangatho ogqwesileyo kwaye kunika umfanekiso obalaseleyo wezinto ezintathu ezikhankanywe apha.
Yiyiphi ifomathi yeHDTV engcono-720p, 1080i okanye 1080p?
Ukucinga ukuba zonke iifomati zeTV zikwintlobo yexabiso lakho, i- TV ye-1080p iyona khetho ekhethekileyo . I-720p kunye ne-1080i yi-teknoloji endala eyenza ngokukhawuleza ibonelele kwiiTV ezisezantsi. Inika isisombululo esiphezulu kunye namava okubukela, kwaye kukho ubuninzi bezinto ezili-1080p ngaphandle apho. Nangona kunjalo, ukuba uthengisa i-TV enama-intshi angama-32 okanye encinci, awuyi kubona umda omkhulu phakathi kweefoto kwii-TV ze-1080p ne-720p.
Ixesha elizayo kwiTV e-High-Definition
I-teknoloji ayimelanga, ngoko uza kubona ezinye i-TV ezithengiselwano eziphezulu kwiimarike. Ii-TV ze-4K ziphume ngoku, kwaye aziyi kuba lide ngaphambi kokuba iisethi ze-8K zifumaneke. Ngaphandle kokuba kubekho umgca we-teknoloji kubalulekile kuwe-kwaye unayo ibhajethi evulekileyo-UHD (ukucaciswa kwe-ultra high) iisetyenzisi ayithengi efanelekileyo ngeli xesha kuba akukho mninzi umxholo onokuzisebenzisa ngokuphezulu kwabo zigqibo.
- I-4K UHD : Kukho iikhompyutha ezine-4K ngoku, kodwa zibiza. La maTVT anesisombululo sama-pixels angama-3840 ngamanqanaba angama-2160.
- 8K UHD : Ukulandela ngqo kwizithende ze-4K, i- 8K UHD kufuneka ifumaneke kungekudala. Akukho mxholo okwangoku ufumaneke kwii-TV ze-8K. I-TV ye-8K inikeza iipekseli eziyi-7680 ezimangalisayo ngamanqanaba angama-4320.
Mayelana ne-Wide-Screen Benefits
Olunye uphuculo lwe- HDTV ngaphezu kwe-TV ye-analog yi-screen-wide endaweni yeskrini. Umfanekiso obanzi-skrini ulungele amehlo ethu-sibona imifanekiso egciniweyo yesikrini esiphezulu kunokuba ifomati yesikwere esidala ye-TV ye-analog. Amehlo ethu abujonga bhetele ukusuka kwesobunxele kuya kwesokudla kunokuba usuke kufike phezulu. Isikrini esiphezulu sibonisa ngaphezulu kwesenzo esikwi-skrini, esilungileyo kwimidlalo nakwiifilimu. Zonke ii-HDTV zinomlinganiselo obanzi wesikrini, ngoko oku kuphuculwa akubonakali kwifomathi yeTV engcono.