Iinkqubo ze-HDR zamva nje kwizikrini ze-LED

Iinkqubo ze-HDR zamva nje kwizikrini ze-LED 

Ngaba sele uza kuthenga isikrini se-LED kwaye awazi ukuba libaluleke kangakanani igama elithi HDR, (Uluhlu oluPhezulu lweDynamic, kwisishunqulelo saso ngesiNgesi)?

Ungakhathazeki, apha siza kukucacisela.I-HDR, ngokufutshane, yinxalenye yesikrini sakho se-LED esinoxanduva lokuzisa izigcawu ezinemibala eyinyani ngakumbi kunye nokwahluka okuphezulu.

Umahluko ulinganiswa ngumahluko phakathi kwabamhlophe abaqaqambileyo kunye nabamnyama abamnyama ukuba isikrini se-LED sinokubonisa, silinganiswe kwi-candela ngemitha yesikwere (cd / m2): ebizwa ngokuba yi-NITS.

Kukho iifomati ezininzi kwi-HDR, kodwa ngoku kukho abadlali ababini abaphambili: ifomathi yeDolby Vision yobunini, kunye ne-HDR10 evulekileyo.UDolby wayengowokuqala ukujoyina itheko nomboniso weTV okwaziyo ukubonisa ukuqaqamba ukuya kuthi ga kwi-4,000.Ngexesha elifutshane, iDolby Vision yayifana ne-HDR, kodwa ayingabo bonke abavelisi ababefuna ukulandela imithetho kaDolby (okanye bahlawule iimali zabo), kwaye abaninzi baqala ukusebenza ngeendlela zabo.

Iifomati ezimbini eziphambili ze-HDR zisebenzisa imethadatha ehamba kunye nomqondiso wevidiyo phezu kwentambo ye-HDMI, imethadatha evumela ividiyo yomthombo ukuba“xela”umboniso we-LED indlela yokubonisa imibala.I-HDR10 isebenzisa indlela elula: ithumela imetadata yonke ngexesha elinye nasekuqaleni kwevidiyo, ithetha into efana nale, "Le vidiyo ifakwe ngekhowudi isebenzisa i-HDR, kwaye kufuneka uyiphathe ngolu hlobo."

I-HDR10 iye yaba yeyona nto idumileyo kwezi fom zimbini.Ngaphezulu kwayo yonke into, ngumgangatho ovulekileyo: abavelisi bezikrini ze-LED banokuyisebenzisa mahhala.Ikwacetyiswa yi-UHD Alliance, ekhetha ngokubanzi imigangatho evulekileyo kwiifomathi zobunini ezifana neDolby Vision.