I-Rate Refresh kanye ne-Sub-field Drive ku-Plasma TV
Ama-TV e-Plasma aphelile ngasekupheleni kuka-2014, kodwa abe nabalandeli abaningi futhi abambalwa babo baphuma ukuthenga amaplasmas asele asele atholakala ezitolo. Eziningi zamaTV zisasetshenziswa emhlabeni jikelele, nabathengi abaningi besabathanda ikhwalithi yesithombe se-TV yama-plasma phezu kwe-LCD TV ekhona manje.
Nakuba ungahlinzeki ubuchwepheshe obuphambili njengo- 4K isinqumo ne- HDR , ama-TVs we-plasma anikeza ukusebenza okuhle kakhulu kwezinga elimnyama nokulandela ukuhamba. Ngokuphathelene nokusebenza kokunyakaza, ubuchwepheshe be-sub-field drive budlala ingxenye enkulu.
I-sub-field drive rate isici esiyingqayizivele kwithelevishini ye-plasma . Kuvame ukubizwa nge-480Hz, 550Hz, 600Hz noma inombolo efanayo. Uma usenayo i-TV ye-plasma futhi wenqaba ukuyingxenye yayo, noma ukuthola i-TV evuselelwe noma esebenzisa i-plasma ocabanga ukuthi kufanelekile ukuthenga, kusho ukuthini lokhu?
I-Sub-field Drive Rate ne-Rate Refresh Rate
Abathengi abaningi bakholelwa ngamanga ukuthi bakholelwa ukuthi izinga lokushayela phansi lensiza lilingana nesilinganiso sokuvuselela isikrini , njengamazinga okuvuselela isikrini evame ukukhulunywa ngethelevishini ye-LCD. Kodwa-ke, isilinganiso se-sub-field drive drive kwi-TV ye-plasma empeleni kubhekisela kokuthile okuhlukile.
Isilinganiso sokuvuselela isikrini kungaki izikhathi eziningi uhlaka oluphindaphindiwe phakathi nesikhathi esithile, njenge-1/60 yesibili. Kodwa-ke, nakuba ama-TV ama-plasma anesilinganiso sokuvuselela isikrini se-60Hz, benza okuthile ngaphezu kwalokhu impendulo ehamba phambili ehamba phambili. Ekusekeleni izinga lokuvuselela isikrini, baphinde bathumele ukuphanga kagesi okuphindaphindiwe kuma-pixel ukuwagcina ubala isikhathi sokuthi ifreyimu ngayinye iboniswa esikrinini. I-sub-field drive iklanyelwe ukuthumela lezi ziphapho ezisheshayo.
Amaphikseli we-TV yama-Plasma vs. i-LCD TV Pixels
Amaphikseli aziphatha ngendlela ehlukile kuma-TV ama-plasma kunokuba akwenze kuma- TV e- LCD . Amaphikseli ku-TV ye-LCD angavulwa noma avaliwe nganoma isiphi isikhathi lapho umthombo wokukhanya oqhubekayo udluliselwa kuma-chips e-LCD. Noma kunjalo, ama-LCD chips azenzi ukukhanya kwawo siqu, adinga umthombo owengeziwe wokubuyela emuva noma wokukhawulela ukuze kuvezwe izithombe ongayibona esibukweni.
Ngakolunye uhlangothi, i-pixel ngayinye ku-TV ye-plasma iyakwazi ukuzimela. Lokho kusho ukuthi amaphikseli e-plasma TV akhiqiza ukukhanya kwawo ngaphakathi kwesakhiwo samaseli (akukho mthombo owengeziwe we-backlight odingekayo), kodwa ungawenza kuphela isikhathi esifushane kakhulu esilinganiselwe kuma-millisecond. Amapayipi kagesi kufanele athunyelwe ngesilinganiso esisheshayo amaphikseli we-plasma TV ukuze ahlale elele.
I-sub-field drive specification ichaza izinga lokuthi zingaki zalezi ziphahla ezithunyelwa kuma-pixels ngesinye isibili ukugcina ifreyimu ibonakala esibukweni. Uma i-TV yama-plasma inesilinganiso sokuvuselela isikrini se-60Hz, esivame kakhulu, futhi uma i-sub-field drive ithumela ama-pulses angu-10 ukujabulisa ama-pixel engakapheli kwe-60 yesibili, isilinganiso se-drive-sub field sishiwo njengo-600Hz.
Izithombe zizobukeka kangcono futhi ukuhamba phakathi kwefrimu ngayinye yangempela yevidiyo kuzobukeka kubushelelekile uma ezinye izimpuphu zingathunyelwa ngaphakathi kwesikhathi se-60HZ sokulinganisa isikhathi. Lokhu kungenxa yokuthi ukukhanya kwepikelli akuyikubola ngokushesha ngesikhathi lapho uhlaka lukhonjiswa khona, noma lapho kuguqulwa kusuka kuhlaka kuya kuhlaka.
Okubalulekile
Nakuba i-LCD ne-Plasma TV zibukeka ngokufanayo, kunemibono yangaphakathi eqondile yokuthi zibonisa kanjani okubonayo esikrinini. Omunye umehluko ohlukile kwi-Plasma TVs ukuqaliswa kwe-sub-field drive technology ukuthuthukisa impendulo yokunyakaza.
Kodwa-ke, njengalokhu ngezinga le-LCD TV yokuvuselela ama-rate, lokhu kungaba umdlalo wezinombolo ezidukisayo. Emva kwakho konke, zingaki izimpucu okumelwe zithunyelwe nge-1/60 yesibili ukuze ubone ukuthuthukiswa kwekhwalithi yesithombe sokunyakaza? Ingabe umthengi angabona ngempela umehluko emkhakheni wezithombe kanye nokunyakaza phakathi kwama- TV ama-plasma anamazinga angaphansi kwe-field of 480Hz, 600Hz noma 700Hz? Indlela engcono kakhulu yokuthola ukuthi uyenze empeleni yenza amehlo akho-uma uqhathanisa ukubona ukuthi yini ebukeka kahle kakhulu kuwe.
Noma kunjalo, into eyodwa ingashiwo ngokucacile; Kungakhathaliseki ukuthi izinga le-sub-field drive liyiliphi, ama-Plasma TV ngokuvamile abe nokuphendula okungcono kunama-TV e-LCD.