Ubuchwepheshe Bamuva Bokwenza Amathelevishini Asezingeni Eliphezulu
Intuthuko yethelevishini yesimanje ayisagxili kuphela kosayizi besikrini esikhulu noma ekuxazululweni okuphezulu. Eminyakeni yamuva nje, ukunaka kwemboni kushintshele emazingeni aphezulu ozimele ukuze kulethwe ukunyakaza okubushelelezi, impendulo esheshayo, kanye nokuhlangenwe nakho kokubuka okungokoqobo. Amathelevishini anamazinga aphezulu ozimele—ngokuvamile angu-120Hz kuya ku-144Hz, futhi aphezulu nakakhulu kwamanye amamodeli—aba yisici esifunwa kakhulu, ikakhulukazi phakathi kwabalandeli bezemidlalo, ama-movie ezenzo, kanye nemidlalo yekhonsoli/ye-PC. Lesi sihloko sihlola ubuchwepheshe bamuva abakhiqizi ababusebenzisayo ukufeza amathelevishini anezinga eliphezulu lozimele, kanye nezinselele nezinzuzo ezizilethela abasebenzisi.
Ukuqonda Izinga Lohlaka kanye Nezinga Lokuvuselela
Ngaphambi kokuxoxa ngobuchwepheshe, kubalulekile ukuhlukanisa phakathi kwamagama amabili avame ukudideka: izinga lohlaka kanye nezinga lokuvuselela. Izinga lohlaka libhekisela enanini lamafreyimu (izithombe) umthombo wevidiyo othumela ngomzuzwana, njenge-24fps (ama-movie), i-50/60fps (ukusakazwa), noma i-120fps (okuqukethwe okuthile kanye nemidlalo). Okwamanje, izinga lokuvuselela (Hz) libhekisela ekutheni iphaneli ye-TV ivuselela kangaki isibonisi ngomzuzwana, njenge-60Hz, 120Hz, noma i-144Hz. Ithelevishini yezinga lokuvuselela eliphezulu ingabonisa izibuyekezo zesithombe ezengeziwe, okwenza ukunyakaza kubonakale kubushelelezi—ikakhulukazi uma umthombo wokuqukethwe nawo usekela izinga lokuhlunga eliphezulu.
Amaphaneli angu-120Hz/144Hz kanye nokuvela kobuchwepheshe bokubonisa
Esinye sezisekelo ezibalulekile ze-TV enezinga eliphezulu ukusetshenziswa kwephaneli esekela amazinga aphezulu okuvuselela. Nakuba ama-TV amaningi e-"120Hz" ayethembele ekucutshungulweni kwesofthiwe (ukuguqulwa kokunyakaza), manje ama-TV aphakathi nendawo kuya kuma-premium asebenzisa amaphaneli endabuko e-120Hz noma i-144Hz.
Ubuchwepheshe bephaneli njenge-OLED, i-QLED (i-quantum dot LCD), kanye ne-Mini-LED bubone ukuthuthuka kwesivinini sokushintsha amaphikseli, ukulawula ukukhanya kwangemuva, kanye nokuzinza kwesilinganiso sokuvuselela. Ku-OLED, amaphikseli ayazikhanyisa wona, okuholela esikhathini sokuphendula amaphikseli esisheshayo kakhulu, okusiza ukunciphisa ukufiphala ngesikhathi sokunyakaza okusheshayo. Kuma-LCD anamuhla, ukusetshenziswa kwamaphaneli anezikhathi zokuphendula ezingcono, kuhlanganiswe nokulawula ukukhanya kwangemuva okunembile, kuthuthukisa kakhulu ukusebenza kokunyakaza uma kuqhathaniswa nezizukulwane zangaphambilini.
I-HDMI 2.1: Isango Eliphezulu Lokuqukethwe Kwezinga Lohlaka Oluphezulu
Ukuthuthuka kwamazinga aphezulu ozimele kuma-TV kuhlobene kakhulu nokufika kwe-HDMI 2.1. Le nqubo inikeza umkhawulokudonsa omkhulu (nge-FRL—Fixed Rate Link) futhi ivumela ukusekelwa kwezinqumo eziphezulu kanye namazinga ozimele njenge-4K 120Hz. Izici ezibalulekile ze-HDMI 2.1 ezibaluleke kakhulu zifaka:
1. I-VRR (Izinga Lokuvuselela Eliguquguqukayo): Ilungisa izinga lokuvuselela le-TV liye ezingeni lohlaka olukhiqizwa yidivayisi (ikhonsoli/i-PC) ukuze kuncishiswe ukudabuka nokungazwakali kwesikrini.
2. I-ALLM (Imodi Yokubambezeleka Okuphansi Okuzenzakalelayo): I-TV ingena ngokuzenzakalelayo kwimodi yokubambezeleka okuphansi uma ithola idivayisi yokudlala.
3. i-eARC (isiteshi sokubuyisa umsindo esithuthukisiwe): Ivumela umsindo wekhwalithi ephezulu (isb. i-Dolby Atmos) ukuthi udluliselwe kubha yomsindo/isamukeli se-AV ngaphandle kokucindezelwa ngokweqile.
Nge-HDMI 2.1, omabonakude manje sebehlonyiswe kangcono ukuthola amasignali esivinini esiphezulu avela ku-PS5, Xbox Series X|S, kanye nama-PC emidlalo.
Isilinganiso Sokuvuselela Esiguquguqukayo (i-VRR) kanye Nokuvumelanisa Okuguquguqukayo
I-VRR ingenye yezindlela zobuchwepheshe ezibaluleke kakhulu zokwenza ama-high frame rate, ikakhulukazi emidlalweni. Njengoba izinga lohlaka lwe-GPU lishintshashintsha—isibonelo, kusukela ku-90fps kuya ku-110fps—i-TV ene-VRR ilungisa izinga lokuvuselela ngendlela enamandla. Umphumela uba isithombe esizinzile nesikhululekile.
Ezinye izinhlelo ezivamile ze-VRR zifaka phakathi i-HDMI Forum VRR, kanye nokuhambisana nezindinganiso ezifana ne-AMD FreeSync noma i-NVIDIA G-SYNC Compatible kumamodeli akhethiwe. Lokhu kusekelwa kuvumela ama-TV ukuthi asebenze njengezikrini zemidlalo, ikakhulukazi ezikrinini ezinkulu ezisetshenziswa kakhulu emidlalweni.
Ukuhumusha Ukunyakaza kanye Nokucubungula i-AI
Nakuba amaphaneli endabuko angu-120Hz/144Hz ebalulekile, imithombo eminingi yokuqukethwe kwamafilimu nokusakaza isasebenza kuma-24fps, 30fps, noma 60fps. Ukuze kuxazululwe lokhu, abakhiqizi be-TV bathuthukise ubuchwepheshe bokucubungula ukunyakaza, njengokungenelela kokunyakaza (okuvame ukwaziwa ngokuthi "umphumela we-soap opera" uma usethwe ngamandla kakhulu). Lobu buchwepheshe budala amafreyimu engeziwe ukuze kusheleleze ukunyakaza.
Muva nje, ukucubungula ukunyakaza kuye kwahlanganiswa kakhulu ne-AI kanye nama-algorithms okufunda komshini ukuthola izinto, ukubikezela isiqondiso sokunyakaza, nokunciphisa izinto ezisetshenziswayo ezifana nokufiphaza, ama-halo, noma ukuhlanekezela izinto ezihambayo. Abasebenzisi bavame ukunikezwa ukulawula izinga lokufakwa ukuze balungise izintandokazi zabo: imodi ye-movie ehlala "i-cinematic" noma imodi yezemidlalo ebushelelezi kakhulu.
Ukufakwa Kohlaka Olumnyama (i-BFI) kanye Nokunciphisa Ukufiphala Kokunyakaza
Ngaphandle kokuhlanganiswa, kunenye indlela yokuthuthukisa ukucaca kokunyakaza: Ukufakwa Kohlaka Olumnyama (i-BFI). Le ndlela ifaka ozimele abamnyama phakathi kohlaka lwezithombe ukuze kuncishiswe ukubona kokufiphala kweso lomuntu, okufana ne-shutter kuphrojektha noma izici ze-CRT. Kuma-TV anamuhla, i-BFI iye yathuthukiswa kakhulu ukuze kuvinjelwe ukunciphisa ukukhanya ngokweqile noma ukufiphala okucasulayo.
I-BFI iwusizo kakhulu kwezemidlalo noma ezigcawini zesenzo ezisheshayo. Kodwa-ke, ukusetshenziswa kwayo kudinga ibhalansi, njengoba ukufaka ozimele abamnyama kuvame ukufiphaza isikrini, ikakhulukazi lapho okuqukethwe kwe-HDR kudinga ukukhanya okuphezulu.
I-Mini-LED Esheshayo kanye ne-Local Dimming
Kuma-TV e-LCD ane-Mini-LED, izinkulungwane zama-LED amancane asetshenziswa njengezibani zasemuva futhi alawulwa ngokufiphala kwendawo ezindaweni eziningi. Inzuzo ye-Mini-LED akuyona nje kuphela ukuqhathanisa okungcono kodwa futhi nokulawula ukukhanya okunembile nokuphendulayo lapho izigcawu zishintsha ngokushesha.
Ukuze kube nezinga eliphezulu lozimele, ukufiphala kwendawo kudinga ukusebenza ngokuvumelana nezinguquko zozimele ezisheshayo ukuze kugwenywe ukuqhakaza ngokweqile noma ukuguquka kokukhanya okulibazisekile. Isizukulwane sakamuva sithembele kuma-processor ezithombe asheshayo kanye nama-algorithms okufiphala aguquguqukayo.
Iprosesa Yesithombe Enamandla Kakhulu kanye ne-Latency Ephansi
Ithelevishini enezinga eliphezulu lohlaka idinga iprosesa ekwazi ukucubungula idatha enkulu yevidiyo ngesikhathi sangempela. Amaprosesa esimanje aphatha ukukhushulwa kwesilinganiso, ukunciphisa umsindo, imephu yethoni ye-HDR, ukushelela ukunyakaza, kanye nokulawula ukukhanya/ukufiphala konke ngesikhathi esisodwa. Inselele enkulu ukugcina ikhwalithi yesithombe ngaphandle kokwandisa ukubambezeleka.
Emidlalweni yokudlala, ukubambezeleka kokufaka kuyinkinga ebalulekile. Ngakho-ke, ama-TV amaningi amasha anikeza "iModi Yemidlalo" evimbela ukucubungula okunzima futhi ebeka phambili impendulo esheshayo. Amanye amamodeli afaka ngisho nephaneli yolwazi (ibha yemidlalo) ukuqapha i-VRR, izinga lohlaka, i-HDR, kanye nezilungiselelo ze-latency.
Okuqukethwe kwe-120fps kanye nekusasa lokusakaza
Ukutholakala kokuqukethwe kwesilinganiso sohlaka oluphezulu kusalokhu kuyisici esivimbelayo. Amafilimu ngokuvamile athathwa ku-24fps ukuze kube nomuzwa we-cinematic, kuyilapho ukusakazwa kwethelevishini kuvame ukusebenza ku-50/60fps. Okuqukethwe ku-120fps kuvame kakhulu emidlalweni. Kodwa-ke, izitayela zingashintsha njengoba amapulatifomu okusakaza, amakhamera okukhiqiza, kanye nomthamo wenethiwekhi kushintsha.
Ezemidlalo ziyindlela enamandla yokuthola amazinga aphezulu ozimele ngoba isenzo siyashesha futhi imininingwane ibalulekile. Ngokusekelwa kwama-codec asebenza kahle kakhulu (njengezizukulwane ze-codec zanamuhla njenge-AV1 kanye nezalandela), amazinga aphezulu ozimele angaba lula kakhulu ekusabalalisweni ngobuningi, yize esadinga i-bandwidth ebalulekile kanye nengqalasizinda eyanele.
Izinselele: Imiphumela Engemihle Nokulungiswa Komsebenzisi
Nakuba ubuchwepheshe bezinga eliphezulu lohlaka bunikeza izinzuzo eziningi, kunezinto ezimbalwa okufanele uzikhumbule:
– Umphumela we-opera yensipho: Ukuhunyushwa ngokweqile kungashintsha umuzwa wefilimu ube njenge-opera yensipho noma ukusakazwa kwesitudiyo.
– Ukukhanya kuncipha uma i-BFI isebenza: Kuphawuleka kakhulu ku-HDR.
– Ukuhambisana kwedivayisi: Akuwona wonke ama-port e-HDMI ku-TV asekela i-HDMI 2.1 ephelele; ngezinye izikhathi ama-port angu-1-2 kuphela.
– Izilungiselelo ezifanele ziyahlukahluka: Ama-movie, ezemidlalo, kanye nokuqukethwe kwemidlalo kungcono ukusebenzisa amasethingi ahlukene ukuze uthole imiphumela emihle.
Ngakho-ke, abakhiqizi manje sebegxila kakhulu ekuhlinzekeni ngezixhumi zokusetha ezilula, izindlela ezizenzakalelayo ezisekelwe ku-AI, kanye nezibuyekezo ze-firmware ukuthuthukisa ukuzinza kwe-VRR kanye nokuhambisana kwedivayisi.
Isiphetho
Ubuchwepheshe bamuva kumathelevishini anezinga eliphezulu lohlaka luyinhlanganisela yezinto eziningi ezintsha: amaphaneli endabuko angu-120Hz/144Hz, i-HDMI 2.1, i-VRR, i-ALLM, ukucubungula ukunyakaza okusekelwe ku-AI, i-BFI, i-Mini-LED enokukhanya kwendawo okunembile, kanye nama-processor ezithombe anamandla futhi asebenzayo. Umphumela wokugcina uwukubuka okubushelelezi, okubukhali ezigcawini ezisheshayo, kanye nokusabela kakhudlwana emidlalweni. Ukuya phambili, njengoba ukwesekwa kokuqukethwe kukhuphuka kanye nezindinganiso zokusabalalisa zithuthuka, ama-TV anezinga eliphezulu lohlaka anamandla okuba yinto evamile entsha—akuseyona nje isici se-premium.
Uma ufuna, ngingangeza isigaba esincoma imininingwane efanele ye-TV enezinga eliphezulu lohlaka lwe-(1) yama-movie, (2) ezemidlalo, noma (3) imidlalo, kanye neziqondiso zokusetha zemiphumela emihle kakhulu.
