Ukuqonda Iikhompyutheni zekhompyutyala kunye neRhafu yokuHlaziya iiRhafu
Ukuthengwa komabonwakude kule mihla ngokuqinisekileyo akulula njengoko kwakunjalo. Ngamazwi ajikiweyo nge- HDTV , iSkrip Scan , i- 1080p , i- 4K Ultra HD , i-Frame Rate, kunye ne-Refresh Refresh Rate, umthengi uya kugxinwa ngemigaqo yecandelo elinzima ukuluhlela. Kule miqathango, ezimbini zezona zinto zinzima kakhulu ukuqonda ukuba ziyiNqanaba leKhokelo kunye neResha yokuHlaziya.
Ziziphi iifom
Kwividiyo (zombini i-analog kunye nencazelo ephakamileyo), njengoko kufana nefilimu, imifanekiso iboniswa njengeefayile. Nangona kunjalo, kukho ukungafani kwindlela amafowulda aboniswa ngayo kwisikrini sethelevishini. Ngokomxholo wemveli wevidiyo, kumazwe asekelwe kwi-NTSC kukho iifom ezi-30 ezihlukeneyo eziboniswe rhoqo kwisibini (1 iifom epheleleyo yonke i-1/30 yesibini), ngelixa kumazwe ase-PAL, kukho iifom ezi-25 ezihlukeneyo eziboniswe rhoqo kwisibini (1 isakhelo esipheleleyo siboniswe yonke i-25 yesibini). Ezi zifaki ziboniswa ngokusebenzisa indlela ye- Interlaced Scan okanye indlela yeProgram yeSkrip .
Nangona kunjalo, ekubeni ifilimu idutshulwa kwiifom ezingama-24 ngeyesibini (1 ifom epheleleyo iboniswe yonke i-24 yesibini), ukwenzela ukuba ibonise ifilimu kwisikrini somabonwakude, iifayile ezingama-24 zangaphambili kufuneka ziguqulwe zibe ngama-30 amaqonga kwinkqubo ebizwa ngokuba yi-3 : 2 i-pulldown.
Yiyiphi iNqanaba lokuQala kwakhona elithethayo
Ngamabonwakude oonomathotholo namhlanje, i-LCD, iPlasma, kunye ne-DLP, kunye neefom ezisekelwe kwi-disc, ezifana ne-Blu-ray Disc (kunye ne-HD-DVD ekhutshiwe ngoku), enye inqaku liye langena kumdlalo ochaphazela indlela amaxwebhu Umxholo wevidiyo uboniswa kwisikrini: Hlaziya iRhafu. Ireyithi yokuhlaziywa ibonisa ukuba kaninzi kangakanani i-TV, ukuboniswa kwevidiyo, okanye umfanekiso weskrini opropathiweyo uphinde uphinde uphinde ulungiswe rhoqo kwisibini. Ingcamango kukuba amaxesha amaninzi iskrini "ihlaziyekile" nganye yesibini, ilula ngakumbi umfanekiso ngowendlela yokunyuswa kwesindululo kunye nokunciphisa ukunciphisa.
Ngamanye amazwi, umfanekiso ukhangeleka ngokukhawuleza kwesikrini sinokuzihlaziya. Ukuhlaziywa kwamaxabiso eethelevishini kunye nezinye iindidi zevidiyo ezibonisiweyo zilinganiswa kwi "Hz" (Hertz). Ngokomzekelo, ithelevishini enezinga lokuvuselela i-60hz limela ukuhlaziywa okupheleleyo kweskrini kwimizuzu engama-60 kwisibini. Ngenxa yoko, oku kuthetha ukuba isakhelo ngasinye sevidiyo (kwisikiti esingu-30 ngesalathisi sesibini) siphindwa kabini rhoqo emva kwe-60 yesibini. Ngokujonga iimathematika, umntu unokukwazi ukubona indlela enye ifreyimu ehambelana ngayo namanye amaxabiso okuhlaziya.
Imilinganiselo yoHlahla ngokuVakala kweRefresh
Yintoni eyenza izinto zidideke ngumbono wamanani amaninzi ahlukeneyo neengqondi abonakaliswa rhoqo kwisibini, ngokumalunga nokuba zihlandlo ezilihlandlo eziphindaphindiweyo zonke i-1/24, i-1/25, okanye i-1/30 yesibini ukufanisa izinga lokuhlaziya Ukubonisa ithelevishini.
Iimvumi zinekrini zazo zivuselela izixhobo. Ireyithi yokuvuselela i-screen ye-TV idla ngokubhaliweyo kwincwadi yomsebenzisi okanye kwiphepha lewebhu lomkhiqizo.
Inani eliqhelekileyo lokuvuselela iithelevishini zanamhlanje yi-Hz ezingama-60 zeenkqubo ze-NTSC-based and 50 Hz kwiinkqubo ze-PAL-based. Nangona kunjalo, ngokusungulwa kwamanye ama- Blu-ray Disc kunye ne-HD-DVD abadlali abangakwazi ukuvelisa isakhelo esingu-24 kwisigxina sevidiyo yesibini, endaweni yesigxina se-30 kwisigcawu sesibini sevidiyo, amaxabiso amatsha okuhlaziya aqaliswa ngabenzi bamabonakude. ukulungiselela ezi zibonakaliso kwisilinganiselo esifanelekileyo semathematika.
Ukuba unomabonakude ngezinga lokuvuselela i-Hz eyi-120 ye-1080p / 24 (i-pixels ye-1920 kwisikrini nge-1080 pixels phantsi kwesikrini, eneesakhelo esingu-24 kwisilinganiselo sesibini). Umabonakude uphela ukubonisa ama-24 ahlukeneyo ngesibini nganye kodwa uphinda isakhelo ngasinye ngokwezinga lokuhlaziya i-TV. Kwimeko ye-120 Hz, isakhelo ngasinye siya kuboniswa ngamaxesha ama-5 kwisithuba se-24 sesibini.
Ngamanye amagama, nangamazinga aphezulu okuhlaziywa, kusekho amafayile ahlukeneyo angama-24 aboniswe nganye yesibini, kodwa angadinga ukuba aboniswe ngamaxesha amaninzi, kuxhomekeke kwisilinganiselo sokuvuselela.
- Ukubonisa ifowuni ezingama-24 ngesibini kwiTV nge-rate ye-120 Hz yokuvuselela, isakhelo ngasinye siphindwa ngamaxesha ama-5 nganye yesi-24 yesibini.
- Ukubonisa ifowuni ezingama-24 ngeesibini kwithelevishini enezinga lokuvuselela ii-Hz ezingama-72, isakhelo ngasinye siphindwa kathathu kwi-24 yesibini yesibini.
- Ukubonisa ama-30 ozimele ngeesibini kumabonakude ngezinga lokuvuselela i-Hz 60, isakhelo ngasinye siphindwa kabini kwi-30 yesibini.
- Ukubonisa amaxwebhu angama-25 ngesibini kumatshini weTV ngezinga lokuvuselela i-Hz ( amazwe ase-PAL ), isakhelo ngasinye siphindwa kabili kwimizuzu yesi-25 nganye yesibini.
- Ukubonisa amaxwebhu angama-25 ngomzuzwana kwithelevishini enezinga lokuvuselela i-Hz (iilizwe le-PAL), isakhelo ngasinye siphindwa rhoqo ngama-4 nganye yesi-25 yesibini.
QAPHELA: Le nkcazo ngasentla inesilinganiselo esicocekileyo. Ukuba i-TV nayo inokwenza uhlaka lwama-24 kwisibini ukuya kuma-30 ozimele ngeesibini okanye ngokuphambene nendawo yokuguquka kwesilinganiselo, kufuneka ube nokujongana ne-3: 2 okanye i-2: 3 i-Pulldown, eyongeza izibalo. I-3: 2 i-pulldown nayo ingenziwa ngeDVD okanye i-Blu-ray Disc player, okanye enye idivayisi phambi kokuba uphawu lufike kwi-TV.
Indlela amaTV eThatha ngayo ama-1080p / 24
Ukuba umabonwakude ungama-1080p / 60 okanye i-1080p / 30-kuphela ehambelanayo, ayiyi kwamkela ukufakwa kwe-1080p / 24. Okwangoku, kuphela ii-Blu-ray Discs kunye ne-HD-DVD ii-disc ziyimithombo ephambili yezinto ezili-1080p / 24. Nangona kunjalo, abaninzi abadlali be-Blu-ray Disc ne-HD-DVD bayaguqula isignali ephumayo ukuya kwi-1080p / 60 okanye i-1080i / 30 ukwenzela ukuba ulwazi lunokucutshungulwa ngethelevishini ngokufanelekileyo ukuze lubonise isikrini ukuba aluhambelani ne-1080p / 24.
QAPHELA: Nangona ama-TV angama-1080p / 60 kuphela awakwazi ukubonisa ii-1080p / 24 -1080p / 24 iiTV zingabonisa i-1080p / 60 nge-video processing.
Yonke into ibilisa kumxholo weefowuni ezihlukeneyo kunye namafayili aphindaphindiweyo. Kwimeko yesilinganiselo sesreyithi ngokubalwa kwamazinga okuhlaziya, izixhobo eziphindaphindiweyo aziqwalaselwa njengamaxwebhu ahlukeneyo njengoko ulwazi kwiifom eziphindaphindiweyo zifana. Kuye xa ushukuthela kwisakhelo ngolwazi oluhlukileyo osibalo njengoluhlu olutsha.
Ukukhangela kwakhona
Nangona kunjalo, ukongeza kwinqanaba lokuvuselela iskrini, enye inqubo eyenziwa ngabanye abenzi beTV abakwaziyo ukuphucula impendulo yokunyuswa kunye nokunciphisa ukugquma kwesibonakaliso kubhekiselwa kwi-Backlight Scanning. Ngamanye amazwi, masithi iTV ine-rate ye-120 Hz yokuvuselela isikrini. Kungenzeka ukuba idibanise kwakhona i-backlight ekhanyayo kwaye icime ngokukhawuleza kwi-120 Hz nganye yesibini (phakathi kweeskrini zokuhlaziywa kwesantya ngokuphindaphindiweyo). Olu buchule lunikeza umphumo wokuba ne-240 Hz yesilinganiselo sokuvuselela isikrini ngokukhohlisa ngokufanelekileyo inkqubo.
KwiTVs ezisebenzisa lobu bugcisa, inokukhutshwa okanye ikhutshazwe ngokwahlukileyo ukusuka kwisicwangciso sezinga lokuvuselela izinga leskrini, ukuba isiphumo sendlela yokutshekisha kwesikrini ayikhethwanga. Kwakhona, ngelixa abanye abavelisi beTV baqalisa ukukhangela ngokutsha, abanye abayisebenzisi, okanye bayisebenzise nje kwezinye iimodeli kungekhona abanye.
UkuHlola okanye iSakhelo soPhakathi
Enye indlela esetyenzisiweyo endaweni yokuba, okanye ngokubambisana nayo, i-Backlight Scanning, yinto ebizwa ngokuba yi-Motion okanye i-Frame Polpolation. Le ndlela ingabandakanya ukufakwa kwamacandelo amnyama phakathi kweefayile ezimbini ezikhoyo ezikhoyo okanye umprojekthi wevidiyo kwiTV udibanisa izinto eziphambili kunye nezithuba zokugqibela ezibonisiweyo. Kukho nawuphi na umzekelo, injongo kukudibanisa iifowuni ezibonisiweyo ndawonye ukwenzela ukuba wenze ukuhambela okukhawulezayo ngokukhawuleza.
Impembelelo ye-Soap Opera
Nangona sonke isilinganiselo sesilinganiselo, izinga lokuhlaziywa, ukukhangela kwakhona, kunye nenkqubela yokubamba iqhosha lokubhaliweyo yenzelwe ukunikela amava angcono ekubukeni kubathengi, akusoloko ehamba ngaloo ndlela. Ngakolunye uhlangothi, imiba yesigxina sokunyakaza iyancitshiswa okanye iyancitshiswa, kodwa oko kwenzeka ntoni ngenxa yento yonke yokucubungula yinto ebizwa ngokuba yi "Soap Opera Effect". Umphumo obonakalayo wale mphumela kukuba umxholo osusela kwifilimu ubonakala ngathi udutshulwa kwividiyo, enika ama-movie i-movie ebonakalayo, i-videotape okanye umboniso wokuvelisa isiteji, njenge-opera yesepha okanye uhlala okanye uhlala kwi-tape ye-TV. Ukuba ufumanisa ukuba le mphumela ikukhathaza, ngenhlanhla, abaninzi abenzi beTV banikezela isilungiselelo esinokutshintshisa inani, okanye ukucima, ukuvuselelwa okungeziwe okanye iimpawu zokukhangela kwakhona.
Umdlalo wokuThengisa
Ukuze kuthengiswe i-TV ezisebenzisa ii-rates zokuvuselela ngokukhawuleza, okanye ukuhlaziywa kwezinga elidibeneyo kunye nokukhishwa kwe-backlight, okanye i-intlanzi ye-intlanzi, i-intolorti, abenzi bemveliso baye bazenzela i-buzzwords ukuba bathathe umthengi ngejelo elincinci elingekho lobugcisa.
Umzekelo, i-LG isebenzisa ilebula yeTruMotion, i-Panasonic isebenzisa i-Intelligent Frame Creation, i-Samsung isebenzisa i-Auto Motion Plus okanye i-Clear Motion Rate (CMR), i-Sharp isebenzisa i-AquoMotion, i-Sony isebenzisa i-MotionFlow, i-Toshiba isebenzisa i-ClearScan, kwaye i-Vizio isebenzisa i-SmoothMotion.
AmaTV e-Plasma ahlukeneyo
Enye into ebalulekileyo ukubonisa ukuba amazinga okuvuselela okuphuculweyo, ukutshekisha kwakhona, kunye nokuphambana kwesikhombi kusebenza ngokubanzi kwiLCD kunye ne- LED / i-LCD TV. I-TV ye-Plasma isebenza ngokuhamba ngokuhlukileyo, isebenzisa iteknoloji ebizwa ngokuba yiDrive Field-Drive. Ukufumana ezinye iinkcukacha, funda iqaku lethu Yintoni eyenziwa yiDrive Fields kwi-TV yePlasma .
Gqibela Thatha
Ngobuchwephesha obuninzi obuqeshwe kwii-HDTV zanamhlanje, kubalulekile ukuba abathengi bazibophe ngokwabo ngokubaluleka noko kungabikho. Nge-HDTV, i-Screen yeRefresh Refresh Rate ibaluleke kakhulu, kodwa ungagxininiswa ngamanani, kwaye uqaphele imiphumo engabonakaliyo emibi.
Into ebalulekileyo ekufuneka ithathelwe ingqalelo kwindlela ukwanda kwezinga lokuhlaziywa kunye / okanye ukuphunyezwa okongeziweyo kokuskena kwe-backlight kuphucula okanye akuphuculanga, ikhwalithi yekhredithi ebonakalayo kuwe, umboleki. Makhe amehlo akho abe ngumkhokeli wakho njengoko uthelekisa ivenkile kwithelevishini yakho ezayo.