Pafupifupi aliyense wasamuka kuchoka ku mafilimu otanthauzira a analog chifukwa cha ma televisions apamwamba kwambiri. Iwo ali ndi chiwerengero cha 16: 9 chofanana, chomwe chimawonekera mofanana ndi chithunzi chowonetseramo kanema, ndipo iwo ali ndi zowonetsera zowonjezereka kwambiri, zomwe zimamveka ndi kuwunikira kwawo, mtundu, ndi tsatanetsatane. Kutsimikizika mosakayikira ndi malo otchuka a kugulitsa HDTV.
Kodi Kusiyanasiyana ndi Chiyani pa Zosankha?
Kawirikawiri, kuthetsa chisankho cha TV, kumakhala chithunzi chabwino komanso kutsika mtengo. Kotero, ngati inu mukugula TV, muyenera kudziwa chomwe kutanthawuzira kukutanthauza ndi zomwe mukupeza kuti mupeze ndalama.
Zokwanira zokhudzana ndi HDTV ndi 720p, 1080i ndi 1080p-nambala imayimira chiwerengero cha mizere yomwe imalenga chithunzichi, ndipo kalatayo imalongosola mtundu wa scan omwe TV ikuwonetsera chithunzi: kupita patsogolo kapena kupitilira. Zosintha zimakhala zofunika chifukwa mizere yambiri imatanthauza chithunzi chabwino. Ichi ndi lingaliro lofananalo kwa zithunzi zajambula ndi momwe dpi imakhalira khalidwe la kusindikiza.
- 720p ili ndi chisamaliro chazithunzi cha pixelisi 1280 ndi mizere 720. 720p ndiyo yankho loyamba la HDTV. Adakalipobe koma sali wotchuka monga kale kale kuti mitengo yafika pa TV 1080. Poyerekeza, TV ya 720p ili ndi chigwirizano kawiri pa chithunzi cha TV ya analog.
- 1080i ali ndi chigamulo cha pixels 1920 ndi 1080 mizere yopingasa. Komabe, imayendetsedwa kotero mizere imakhala yojambula pazenera pamadutsa awiri a mizere 540 iliyonse. Mtengo wa chithunzi ndi wabwino kwa zinthu zopita pang'onopang'ono koma osati zofunika ku zinthu zosuntha. 1080i nthawiyomwe inali yoyenera mu HDTV koma osakhalanso. Makhalidwe ake sali abwino kuposa TVs 720p.
- 1080p ili ndi chigamulo cha 1920 ndi pixelisi 1080, ndipo ndiyeso yopitirira, yosasunthika, kotero imapereka chithunzi ndi pixeliti yokwanira 2.07 miliyoni. Izi ndizomwe zimagulitsidwa kwambiri pa TV ndipo zimapereka chithunzithunzi cha zithunzi zitatu zomwe zatchulidwa pano.
Kodi ndi mafilimu ati a HDTV omwe ali abwino-720p, 1080i kapena 1080p?
Poganiza kuti ma TV onsewa ndi atatu, mu TV yanu 1080p ndiyo yabwino kusankha . The 720p ndi 1080i ndi zipangizo zamakono zomwe pang'onopang'ono zimapereka makanema otsimikizika. Imapereka chidziwitso chabwino komanso chowonera bwino, ndipo pali zambiri zokwanira 1080p kunja uko. Komabe, ngati mukugula TV yomwe ili ndi masentimita 32 kapena ang'onoang'ono, simudzawona kusiyana kwakukulu pakati pa zithunzi pa TV 1080p ndi 720p.
Tsogolo la Mafilimu Otchuka
Technology siimayima, kotero mudzawona ma TV ena otsika kwambiri pamsika. Ma TV 4K ali kunja tsopano, ndipo sikudzakhalanso masikiti 8K alipo. Pokhapokha mutakhala pafupipafupi ndi zipangizo zamakono ndizofunikira kwa inu -ndipo muli ndi bajeti yopatsa malire-UHD (kutanthauzira kwapamwamba kwambiri) maselo sizinthu zabwino zogula panthawiyi chifukwa mulibe zambiri zomwe zilipo zomwe zimapindula kwambiri zosankha.
- 4K UHD : Pali ma TV 4K panopa, koma ndi okwera mtengo. Ma TV awa ali ndi chigamulo cha pixels 3840 ndi mizere 2160.
- 8K UHD : Pambuyo pazitsulo za 4K, 8K UHD ziyenera kupezeka posachedwa. Palibe zomwe zilipo pakanema ma TV 8K. Ma TV 8K amapereka pixels 7680 zodabwitsa ndi mizere 4320.
Ponena za Pulogalamu Yowonekera Kwambiri
Kusintha kwina kwa ma HDTV pamwamba pa ma TV aku analog ndizowonekera osati malo osindikizira. Chithunzi chowonekera kwambiri ndi chabwino kwa maso athu-tikuwona zithunzi zamakono zojambulidwa bwino kwambiri kusiyana ndi mawonekedwe akale a TV ya analog. Maso athu amawona bwino kuyambira kumanzere kupita kumanja kusiyana ndi kuyambira mmwamba mpaka pansi. Zowonongeka zimasonyezanso zambiri pazithunzi, zomwe ziri zothandiza masewera ndi mafilimu. Mafilimu onse a HDTV ali ndi zowonjezereka zowonjezerapo, kotero kusintha kumeneku sikungapangidwe momwe TV ikuyendera.