Ukuqonda ama-Frame Frame Amafomethi kanye nezindleko zokuvuselela isikrini
Ukuthenga ithelevishini kulezi zinsuku ngokuqinisekile akulula njengoba kwakunjalo ngaphambili. Ngamazwi aphonswa nxazonke njenge- HDTV , i- Progressive Scan , i- 1080p , i- 4K Ultra HD , i-Frame Rate, ne-Refresh Refresh Rate, umthengi ugoba ngemigomo ye-tech enzima ukuyihlela. Kule migomo, ezimbili ezinzima kunazo zonke ukuqonda ukuthi yi-Frame Rate neRes Refresh Rate.
Yiziphi amafrimu
Kuvidiyo (kokubili i-analog nencazelo ephakeme), njengoba nje ku-ifilimu, izithombe zikhonjiswa njengezimele. Kodwa-ke, kukhona umehluko endleleni amafrimu aboniswa ngayo esikrinini sethelevishini. Ngokomculo wendabuko wevidiyo, emazweni asekelwe e-NTSC kunamafomu angu-30 ahlukene akhonjiswa njalo wesibili (uhlaka oluphelele olu-1 njalo ku-1/30 lwesibili), ngenkathi emazweni asekelwe e-PAL, kunamafrimu angu-25 ahlukene aboniswa njalo wesibili (1 ifreyimu ephelele iboniswe njalo ngama-25 wesibili). Lawa mafolda angaboniswa ngokusebenzisa indlela ye- Interlaced Scan noma indlela ye- Progressive Scan .
Kodwa-ke, njengoba ifilimu idutshulwa emafreyimini angama-24 ngomzuzwana (uhlaka oluphelele olu-1 luboniswe njalo kumatshumi amabili nanye wesibili), ukuze kuboniswe ifilimu kusikrini se-TV esivamile, amafomu angu-24 okuqala kufanele aguqulwe abe amafomu angu-30 ngenqubo eyaziwa njenge-3 : I-pulldown engu-2.
Isiphi Isilinganiso Sokuvuselela Sisho
Ngokubuchwepheshe bokubukisa ithelevishini yanamuhla, i-LCD, i-Plasma, ne-DLP, kanye namafomethi asekelwe kwi-disk, njenge- Blu-ray Disc (kanye ne-HD-DVD ekhishiwe manje), esinye isici singene ekudlaleni okuthinta indlela ozimele ngayo Okuqukethwe kwevidiyo kuboniswa esikrinini: Isilinganiso sokuvuselela. Isilinganiso sokuvuselela sikhombisa ukuthi kaningi kangakanani i-TV yangempela, ukubonisa kwevidiyo, noma isithombe esikrinyiwe esikrinyiwe sakhiwa kabusha njalo ngomzuzwana. Umqondo wukuthi izikhathi eziningi isikrini "sivuselelekile" njalo ngemva kwesibili, sishintsha isithombe siphezulu ngokukhipha ukunyakaza nokunciphisa ukunciphisa.
Ngamanye amazwi, isithombe sibonakala singcono ngokushesha isikrini singazivuselela. Amazinga we-TV avuselelekile nezinye izinhlobo zevidiyo ezibonisiwe zilinganiswa ku- "Hz" (Hertz). Isibonelo, ithelevishini ngezinga lokuvuselela lika-60hz limele ukuvuselelwa okuphelele kwesithombe sesikrini izikhathi ezingu-60 njalo ngomzuzwana. Ngenxa yalokho, lokhu kusho futhi ukuthi uhlaka lwevidiyo ngayinye (ngohlaka lwama-30 ngesignali yesibili) luphindwa kabili njalo eminyakeni engama-60 yesibili. Ngokubheka izibalo, umuntu angakwazi ukubona kalula ukuthi amanye amafreyimu ahlobene kanjani namanye amazinga okuvuselela.
Isilinganiso sohlaka vs Rate Refresh
Yini eyenza izinto zidideke ngumqondo wokuthi zingaki ozimele ezihlukene futhi eziqondayo eziboniswa njalo ngomzuzwana, ngokuphindwe ukuthi uhlaka luphindwa kaningi njalo 1/24, 1/25, noma 1/30 yesibili ukufanisa izinga lokuvuselela Ukubukwa kwethelevishini.
Ama-TV anakho amandla okuvuselela isikrini. Isilinganiso sokuvuselela isikrini sethelevishini ngokuvamile sibhalwe ohlwini lomsebenzisi noma ekhasini lewebhu lomkhiqizo womkhiqizo.
Isilinganiso sokuqabula kabusha kakhulu samathelevishini yanamuhla ngu-60 Hz amasistimu asekelwe ku-NTSC nama-50 Hz amasistimu asekelwe ku-PAL. Kodwa-ke, ngokufaka amanye ama- Blu-ray Disc ne-HD-DVD abadlali abangakwazi ukukhipha uhlaka lwamavidiyo angu-24 ngesiginali sevidiyo yesibili, esikhundleni sefremu yendabuko engu-30 ngesiginali sevidiyo yesibili, amazinga amasha wokuvuselela asetshenziswa ngabenzi abathile bokubukisa ithelevishini ukuze ubeke lezi zibonakaliso kwisibalo esifanele sembalo.
Uma unayo i-TV enezinga lokuvuselela le-120 Hz elingu-1080p / 24 elihambisanayo (ama-pixels angu-1920 kuwo wonke isikrini ngamaphikseli angu-1080 phansi kwesikrini, ngesakhiwo esingu-24 ngesilinganiso sesibili). I-TV iphetha ekuboniseni ozimele ezihlukene ezingu-24 njalo kwesibili kepha iphinda uhlaka ngalunye ngokuya kwezinga lokuvuselela le-TV. Endabeni ye-120 Hz, uhlaka ngalunye luzoboniswa izikhathi ezingu-5 ngaphakathi kwengu-24 yesibili ngayinye.
Ngamanye amazwi, ngisho namazinga aphezulu wokuvuselela, kusekhona amafremu angu-24 ahlukene aboniswe njalo wesibili, kodwa angadinga ukuthi aboniswe izikhathi eziningi, kuye ngokuthi izinga lokuvuselela.
- Ukuze ubonise amafreyimu angu-24 ngomzuzwana ku-TV enezinga lokuvuselela lika-120 Hz, uhlaka ngalunye luphindwa izikhathi ezingu-5 njalo nangama-24 wesibili.
- Ukuze ubonise amafomethi angu-24 ngomzuzwana ku-TV enezinga lokuvuselela lika-72 Hz, uhlaka ngalunye luphindwa izikhathi ezingu-3 njalo nangama-24 wesibili.
- Ukuze ubonise ozimele ezingu-30 ngomzuzwana ku-TV enezinga lokuvuselela lika-60 Hz, uhlaka ngalunye luphindwa kabili izikhathi ezingu-30 zesekhondi.
- Ukuze ubonise ozimele ezingu-25 ngomzuzwana ku-TV enezinga lokuvuselela lika-50 Hz ( Amazwe e-PAL ), uhlaka ngalunye luphindaphindiwe izikhathi ezingu-2 njalo ngama-25 wesibili.
- Ukuze ubonise ozimele ezingu-25 ngomzuzwana ku-TV ngezinga lokuvuselela elingu-100 Hz (Amazwe e-PAL), uhlaka ngalunye luphindwe izikhathi ezingu-4 njalo ngama-25 wesibili.
QAPHELA: Incazelo engenhla ihamba ngamarekhodi ahlanzekile. Uma i-TV nayo kufanele isenze uhlaka lwangama-24 ngomzuzwana kuya kuma-30 ozimele ngomzuzwana noma ukuguqulwa kwesilinganiso sefreyimu yesilinganiso, ngakho-ke kufanele ubhekane no-3: 2 noma u-2: 3 i-Pulldown, enezela izibalo eziningi. I-3: 2 i-pulldown nayo ingenziwa nge-DVD noma Blu-ray Disc player, noma enye idivayisi yomthombo ngaphambi kokuba isignali ifinyelele ku-TV.
Yeka ukuthi amathelevishini abamba kanjani i-1080p / 24
Uma i-TV ingu-1080p / 60 noma i-1080p / 30 - ehambisanayo kuphela, ngeke yamukele ukufaka okungu-1080p / 24. Njengamanje, ama-Blu-ray Discs nama-HD-DVD kuphela amadokhumenti ayimithombo eyinhloko yezinto ezingu-1080p / 24. Noma kunjalo, abadlali abaningi be-Blu-ray Disc ne-HD-DVD baguqula isignali ephumayo kuya ku-1080p / 60 noma ku-1080i / 30 ukuze ulwazi lungacutshungulwa nge-TV ngokufanele ukubonisa isikrini uma kungavumelani no-1080p / 24.
QAPHELA: Nakuba ama-TV angu-1080p / 60 kuphela angakwazi ukubonisa ama-1080p / 24 - 1080p / 24 ama-TV angabonisa i-1080p / 60 ngokucubungula kwevidiyo.
Yonke into ibhalela umqondo wamafremu ahlukene vs ozimele eziphindaphindiwe. Esikhathini sokulinganisa kwesreyimu ngokubala kokulinganisela kwamazinga okuvuselela, amafreyimu aphindaphindiwe awabhekwa njengamafremu ahlukene njengoba ulwazi olufakwe ngokuphindaphindiwe olufanayo lufana. Kuyinto lapho uhambela kuhlaka olulwazi oluhlukile ukuthi ulubala njengesihlaka esisha.
Ukuskena okukhanyayo
Noma kunjalo, ngaphezu kwesilinganiso sokuvuselela isikrini, enye inqubo abanye abakhiqizi be-TV abasebenzisa ukuthi bangathuthukisa impendulo yokunyakaza futhi banciphise ukufiphaza kokunyakaza kubizwa ngokuthi i-Backlight Scanning. Ngamanye amazwi, ake sithi i-TV inezinga lokuvuselela isikrini se-Hz 120. Kungenzeka futhi ukuthi ihlanganisa i-backlight ekhanyayo iphinde ivaliwe ngokushesha nge-120 Hz eyengeziwe yonke yesibili (phakathi kwesilinganiso sokuvuselela isikrini ngokuphindaphindiwe). Le nqubo inikeza umphumela wokuba nesilinganiso sokuvuselela isikrini esingu-240 Hz ngokukhohlisa ngokuphumelelayo uhlelo.
Kumathelevishini abasebenzisa lobu buchwepheshe, inikwe amandla noma ikhutshaziwe ngokwehlukana nokuhlelwa kwesilinganiso sokuvuselela isikrini, uma umphumela wekhono lokuskena kwe-backlight akukhethwanga. Futhi, nakuba abanye abakhiqizi be-TV basebenzisa ukuskena kwe-backlight, abanye abakwenzi, noma bawasebenzise nje kwezinye izinhlobonhlobo hhayi abanye.
Ukunyakaza noma i-Frame Polpolation
Enye indlela esetshenziselwa esikhundleni, noma ngokubambisana nayo, i-Backlight Scanning, yilokho okukhulunywe ngakho ngokuthi i-Motion noma i-Frame Interpolation. Le ndlela ingabandakanya ukungena kwamakheli amnyama phakathi kwamafrimu amabili akhona abonisiwe noma iprojector yevidiyo ku-TV ihlanganisa izingxenye zamafrimu ezibonisiwe ngaphambili nokulandelwayo. Kunoma yikuphi, inhloso ukuxuba ama-frame ozibonisiwe ndawonye ukuze wenze ukuthi ukuqonda okusheshayo kuhambelana kahle.
Umphumela we-Soap Opera
Ngisho noma konke lokhu kuhlalwa kwefreyimu, isilinganiso sokuvuselela, ukuskena kwe-backlight, nokukhwabanisa okuhamba phambili / ukuma kwe-frame kwenzelwe ukuletha isipiliyoni esingcono sokubuka kubathengi, akuhlali ngaso sonke isikhathi. Ngakolunye uhlangothi, izimpikiswano ze-motion lag zinciphisa noma zaqedwa, kodwa yini engenzeka ngenxa yalokho konke lokhu kusetshenziselwa lokho okubizwa ngokuthi "I-Opera Effect Effect". Umphumela obonakalayo wale mphumela wukuthi okuqukethwe okusekelwe kwifilimu kubukeka sengathi kudutshulwe kuvidiyo, okwenza ama-movie abe yi-eerie, i-videotape noma ukubukeka kwendlela yokukhiqiza, njenge-sopop opera noma ephilayo noma ehlala ngokudlala nge-tape TV. Uma uthola ukuthi le mpikiswano ikukhathaza, ngenhlanhla, abenzi abaningi be-TV banikeza ukulungiselelwa okungalungisa inani, noma ukuvala, ukuvuselelwa okungeziwe noma izici zokuskena kabusha.
Umdlalo Wokumaketha
Ukuze uthengise ama-TV asebenzisa amazinga okuvuselela okusheshayo, noma amazinga wokuvuselela ahlangene nokuskena kwe-backlight, noma ukubhala kwensimbi, ukukhiqiza, abakhiqizi baye badala ama-buzzwords abo ukudweba umthengi nge-jargon encane engeyona ezobuchwepheshe.
Isibonelo, i-LG isebenzisa i-label TruMotion, i-Panasonic isebenzisa i-Intelligent Frame Creation, i-Samsung isebenzisa i-Auto Motion Plus noma i-Clear Motion Rate (CMR), i-Sharp isebenzisa i-AquoMotion, i-Sony isebenzisa i-MotionFlow, i-Toshiba isebenzisa i-ClearScan, futhi i-Vizio isebenzisa i-SmoothMotion.
Ama-TV e-Plasma ahlukile
Enye into ebalulekile ukuveza ukuthi izinga lokuvuselela okuthuthukisiwe, ukuskena kwe-backlight, nokubhalwa kwe-motion / ifreyimu kusebenza ngokuyinhloko ku-LCD ne- LED / i-LCD TV. Ama-TV e-Plasma aphatha ukunyakaza kokuhamba ngokuhlukile, usebenzisa ubuchwepheshe obubizwa ngokuthi yi-Sub-Field Drive. Ukuze uthole okunye okucacile, funda isihloko sethu ukuthi i-Sub-Field Drive iyini ku-Plasma TV .
Thatha okokugcina
Njengoba ubuchwepheshe obuyinkimbinkimbi buqashwe kuma-HDTV wanamuhla, kubalulekile ukuthi abathengi bazibophe ngokwabo ngokwazi okubalulekile nokuthi yini engekho. Nge-HDTV, umqondo weSilinganiso Sokuvuselela Isikrini kubalulekile ngempela, kodwa ungagxiliwe ngezinombolo, futhi uqaphele ukuthi kungenzeka yini imiphumela emibi yokubukwa.
Into ebalulekile okufanele ucatshangelwe ukuthi ukwanda kwenani lokuvuselela kanye / noma ukuqaliswa okungeziwe kokuskena kwe-backlight kuthuthukisa noma akuthuthuki, ikhwalithi yesithombe esikrinini esibhekwayo, umthengi. Vumela amehlo akho abe ngumqondisi wakho njengoba uqhathanisa isitolo sethelevishini yakho esilandelayo.