Umlinganiselo wokuphatheka komabonakude mhlawumbi uyona nto elahlekisa ngayo xa unokuthelekisa i-HDTV kuba nangona umlinganiselo wokumelana ungathiwa ufana phakathi kweemodeli, ulwahlulo lwangempela luyahluka. Ukungahambelani kubangelwa kungekho mgangatho wendlela yokulinganisa.
Sekunjalo, nangona ukhala kwezinye iingcali zoshishino, umlinganiselo wokuphambana uyimfuneko ebalulekileyo yokuqonda ngenxa yokuba isebenza ngokukhanya, yiziphi iithelevishini eziphuma kuzo.
Njengoko ufunda kweli nqaku uza kufumana ukuqonda ukuba yintoni na nini ukuyisebenzisa ukuze wenze isigqibo sokuthenga okungcono.
Uluhlu luni lwe-TV?
Masithi sisevenkile ekhangele iiboniso ze-HDTV . Ngoku, masithi kukho into esesikrinini esinomxube wemifanekiso ekhanyayo kunye nemnyama, njengokujonga ngaphandle emgodini omnyama ube ngelanga.
Njengoko sikhangele izikrini kufuneka siqaphele ukwahlukana kwenkcazelo phakathi kwepaneli nganye. Iphaneli enye ingabonisa ukukhangela kwindonga yomqolomba ngeenkcukacha ngokugqithiseleyo ngelixa enye i-HDTV ingabonisa udonga olufanayo njengento engaphezu kombala oqinileyo ngaphandle kweenkcukacha okanye ukuthungwa.
Lo mlinganiselo wohluke kweTV ngokucacileyo - inani leenkcukacha zesikrini kumnyama kunye neminye imibala emnyama.
Ngokwenene, i-TV yokulinganisa imilinganiselo yenza amanani okukhanya phakathi kobumnyama obumhlophe kunye nobumnyama obugqatshayo obungaboniswa kwisikrini ngokubonisa umbukiso, kodwa ezi mifanekiso emnyama ezibonakalisa zibe neengxaki ezininzi zokuvelisa.
Uluhlu luni lokuThathaniswa kweTV ekhangeleka?
Njengomthengi, uza kubona umlinganiselo wokuphathisa odweliswe kwimveliso yomveliso kunye neenkcukacha.
Umzekelo uza kuba ngumlinganiselo ohlukileyo we-2,500: 1, oku kuthetha ukuba umhlophe omhlophe unamawaka angaphezu kwama-2 500 ngaphezu kobumnyama obumnyama. Iingcamango eziqhelekileyo kukuba umlinganiselo omkhulu amazinga amaninzi eenkcukacha aboniswa kwisikrini.
I-curveball kukuba kukho imilinganiselo emibini yomlinganiselo wokuphambana kweTV, ngoko ke iisethi ezimbini zeerati. Le milinganiselo ibizwa ngokuba yi-static and dynamic. Zihluke kakhulu, ngoko kubalulekile ukwazi ukuba ubani okhangeleyo.
Ukusebenzisa umzekelo wethu ngasentla, i-TV ene-2,500: 1 isilinganiselo esahlukileyo sokuhlukana ingaba nomlinganiselo ohlukileyo wokuba u-25,000: 1. Ngoko, kungcono? Ewe, akunjalo. Ziye zahluke ukulinganisa ukuze zivelise iziphumo ezahlukeneyo. Ukuthelekisa ukuxhatshaza ngokuchaseneyo kuya kufana nokuthelekisa iipulo kunye nama-orang.
Uluphi ulwahlulo olusisigxina kunye nolunamandla?
Umlinganiselo wokumisa umabonakude uxelelwa kubathengi njengokuba buqilima okanye bunamandla. I-Static iphinda ibhekiswe njengowomthonyama okanye kwisikrini. Naliphi na, le ndawo apho umlinganiselo woqhathaniso uyanzima kwaye ngokwenene umthengi akadingeki ukuba awazi iinkcukacha ezithile malunga nendlela i-static and dynamic ratios variation ngayo.
Yiyiphi imveliso abafuna ngokwenene ukwazi ukuba yeyiphi imilinganiselo yokuhlukisana echazwayo-static okanye inamandla. Uninzi lwezentengiselwano zengcali zikholelwa ukuba zizibalo ezichanekileyo okanye ezinokwethenjelwa kuba ubuchule bayo buvelisa ngakumbi "ihlabathi langempela" kuneziphumo ezichazayo.
Umlinganiselo woThataniso lweTV
Umlinganiselo wokuphatheka komabonwakude ungenye yeenkcukacha ezichasene kakhulu xa uthelekisa iithelevishini ukusuka kumenzi kumvelisi ngoba imboni ayinayo imilinganiselo yokulinganisa.
Ngaphandle kwemilinganiselo, asikwazi kakuhle ukuba ngamnye umvelisi uvavanya njani iimbonakalo zabo kunye nendlela inkqubo yabo ehluke ngayo kwabanye abavelisi. Ngenxa yoko, iingcali zoshishino zincoma ukusebenzisa umlinganiselo wokumelana kuphela xa zithelekisa ii-HDTV ezenziwe ngumenzi ofanayo.
Iingcamango eziqhelekileyo phakathi kweengcali zoshishino kukuba i-static contrast ratio isilinganiso esithembekileyo ngakumbi kuba ihambelana ngakumbi nendlela umboniso wokubukela oza kubonisa ngayo umxholo kunokuba "yintoni na ukuba" imeko enokuqhathaniswa nomlinganiselo wokuqhathanisa.
Ukulinganiswa koThataniso lweTV Ukuthenga isiluleko
Sebenzisa ezi zilandelayo njengesikhokelo esiqhelekileyo ukuthelekisa ukulinganisa phakathi kwama-HDTVs:
- Sebenzisa umlinganiselo wokuqhathaniswa kuphela xa uthelekisa ii-HDTV ezenziwe ngumenzi ofanayo. Umzekelo, u-Sony ukuya ku-Sony, kungekhona i-Sony kwi-Samsung.
- Thelekisa nokuba u-static ukuya kwi-static okanye iguquguqukayo kwi-dynamic kodwa ungaqhathanisi nesimo esishukumisayo.
- Khumbula ukuba umlinganiselo wokuchasana nje ngenye yezinto ezininzi zokuqwalasela xa uthenge i-HDTV . Kithina, umlinganiselo ochaseneyo wawuya kuphantsi kwoluhlu lwabaphuli-ntsebenziswano ngenxa yokuba imilinganiselo ayihambisani nomenzi kumvelisi. Endaweni yoko, sebenzisa amehlo akho ukufumanisa ukuba umzekelo udibana neemfuno zakho ezibonakalayo.