Ubwino wa Chithunzi pa Ma TV a OLED poyerekeza ndi LED
M'zaka zaposachedwapa, njira zowonera pa TV zakhala zosiyanasiyana kwambiri. Maukadaulo awiri omwe amayerekezeredwa kwambiri ndi OLED ndi LED (omwe nthawi zambiri amatanthauza ma TV a LCD okhala ndi magetsi a LED). Onsewa amatha kuwonetsa zithunzi zapamwamba kwambiri, kuthandizira HDR, komanso kukula kosiyanasiyana. Komabe, ngati cholinga chanu chachikulu ndi mtundu wa chithunzi, OLED nthawi zambiri imaonedwa ngati muyezo wagolide—ngakhale ma LED amakono alinso ndi zabwino zina. Nkhaniyi ikuwunika kusiyana kwa mtundu wa chithunzi pakati pa OLED ndi LED kuchokera ku malingaliro osiyanasiyana ofunikira kuti musankhe yoyenera zosowa zanu.
1) Momwe Ma Panel Amagwirira Ntchito: Maziko a Ubwino wa Chithunzi
Kusiyana kwa khalidwe la chithunzi kumachokera ku momwe ukadaulo uliwonse umapangira kuwala.
OLED (Organic Light-Emitting Diode) imagwiritsa ntchito ma pixel odzitulutsa okha. Izi zikutanthauza kuti pixel iliyonse imatha kutulutsa kuwala kapena kuzimitsidwa kwathunthu popanda kudalira gwero lina la kuwala.
Pakadali pano, ma TV a LED nthawi zambiri amakhala ma LCD omwe amafunikira kuwala kwa LED. LCD panel imagwira ntchito ngati "fyuluta" yomwe imayang'anira kuchuluka kwa kuwala kuchokera ku kuwala kwa backlight komwe kumatumizidwa ku sikirini.
Mphamvu yake ndi yaikulu: OLED imagwira ntchito bwino kwambiri powongolera kuwala kwa pa pixel iliyonse, pomwe LED imadalira kwambiri mtundu wa makina a backlight ndi kufinya kwa local dimming kuti ilamulire kusiyana ndi kuwala.
2) Kusiyana ndi Ma Level Akuda: Ubwino Waukulu wa OLED
Ponena za ubwino wa chithunzi, zinthu zomwe zimakambidwa kwambiri ndi kusiyana kwa mitundu ndi milingo yakuda.
– Pa OLED, ma pixel amatha kuzimitsidwa kwathunthu, zomwe zimapangitsa kuti pakhale zakuda kwenikweni. Izi ndi zomwe zimapangitsa OLED kukhala yodabwitsa kwambiri mukaonera makanema okhala ndi zochitika zambiri zakuda, monga mafilimu osangalatsa, sayansi ya sayansi, kapena masewero otsika kuwala. Tsatanetsatane wa mthunzi umawonekeranso bwino chifukwa "suchotsedwa" ndi kuwala kwakumbuyo.
– Ndi ma LED, chifukwa cha kuwala kwa kumbuyo, malo akuda nthawi zambiri amakhalabe ndi kuwala pang'ono (ma milingo yakuda imawoneka imvi), makamaka pa ma TV apakati a LED omwe alibe kuwala kwapadera kwapafupi. Ma TV a LED omwe amagwiritsa ntchito kale Full Array Local Dimming (FALD) kapena Mini-LED amatha kusintha kusiyana, koma amavutikabe kufanana ndi luso la OLED lozimitsa ma pixel kwathunthu.
Pomaliza mwachidule: pa kusiyana ndi zakuda kwambiri, OLED nthawi zambiri imapambana.
3) Kukula kwa Maluwa ndi Halo Effect: Mavuto mu LED
Pa ma TV a LED, makamaka omwe amagwiritsa ntchito kuwala kwa m'deralo, nthawi zambiri pamawonekera kuwala kowala kapena kuwala kowala, komwe kumakhala kuwala kozungulira zinthu zowala pa maziko amdima—monga, mawu oyera pa maziko akuda, magetsi a mumsewu usiku, kapena nyenyezi mumlengalenga wamdima.
Kuphuka kwa maluwa kumachitika chifukwa ma TV a LED amawongolera kuwala pa dera lililonse (zone dimming), osati pa pixel iliyonse. Madera ambiri ocheperako kuwala, ulamuliro wake umakhala wabwino kwambiri. Ma Mini-LED amatha kukhala ndi madera mazana mpaka zikwizikwi, kotero kuphuka kwa maluwa kumachepa, koma kumatha kuwonekabe pansi pa mikhalidwe ina.
OLED, chifukwa cha mphamvu yake yowongolera ma pixel, siimatulutsa maluwa ambiri. Zinthu zowala zimaoneka zoyera ngakhale zili ndi mdima.
4) Kuwala: Ma LED Angakhale Abwino Kwambiri Pamikhalidwe Ina
Anthu ambiri amaganiza kuti OLED nthawi zonse ndi yabwino kwambiri, koma pankhani ya kuwala kwapamwamba, LED nthawi zambiri imakhala ndi malire—makamaka ma LED apamwamba (monga Mini-LED).
– Ma TV a LED amachita bwino kwambiri m'zipinda zowala kwambiri chifukwa amatha kupanga kuwala kwambiri ndikusunga mawonekedwe "okongola" masana.
– Ma OLED amakono ndi owala kwambiri kuposa mibadwo yakale, koma pa mitundu ina, kuwala kwa skrini yonse kungakhale kotsika kuposa ma LED chifukwa cha magwiridwe antchito komanso kutentha.
Kumbali inayi, ma OLED nthawi zambiri amapereka chidziwitso champhamvu cha HDR osati chifukwa chakuti ndi owala chabe, komanso chifukwa chakuti kusiyana pakati pa kuwala ndi mdima kuli kwakukulu kwambiri (kusiyana kwakukulu). Chifukwa chake, OLED HDR imatha kuwoneka yowala kwambiri ngakhale kuti kuwala sikumakhala kokwera kwambiri nthawi zonse.
5) Magwiridwe a HDR: Kusiyana poyerekeza ndi Kuwala Kwambiri
HDR (High Dynamic Range) cholinga chake ndi kuwonetsa mitundu yosiyanasiyana yowala, yakuda komanso yowala. Kuti TV ikhutiritse HDR, imafunika:
- kusiyana kwakukulu,
- kuwala kokwanira kwapamwamba,
- mapu abwino a mawu,
- kusinthasintha kwa mtundu.
Ma OLED nthawi zambiri amakhala abwino kwambiri pazochitika za HDR zokhala ndi mutu wakuda kapena zochitika zosakanikirana za kuwala kwamdima (monga magetsi a neon usiku), chifukwa kuwala kowala kumatha kuwoneka kowala popanda kukweza milingo yakuda.
Ma LED amapambana kwambiri pa HDR ndi malo akulu owala, monga chipale chofewa, zipululu, kapena masewera amasewera a masana, chifukwa amatha kusunga kuwala kwakukulu pazigawo zazikulu za sikirini.
6) Kulondola kwa Utoto ndi Kuchuluka kwa Utoto
Ubwino wa chithunzi susiyana ndi mtundu: kodi mitundu imawoneka yachilengedwe, yolemera, komanso yofanana?
– Ma OLED amadziwika ndi mitundu yawo yoyera komanso yofanana, chifukwa sakhudzidwa ndi kuwala kwa backlight. Kuphatikiza apo, ma OLED ambiri amabwera ndi ma calibration abwino kwambiri a fakitale, makamaka mu kanema/kanema.
– Ma TV a LED amasiyana kwambiri. Ma TV apamwamba okhala ndi mapanelo apamwamba komanso ukadaulo wa quantum dot (omwe nthawi zambiri amatchedwa QLED ndi makampani ena) amatha kuwonetsa mtundu wowala kwambiri, makamaka pakakhala kuwala kwambiri. Izi zimapangitsa ma LED apamwamba kuwoneka amphamvu kwambiri mu HDR yowala.
Kawirikawiri, ma OLED amaposa mitundu yonse komanso kuzama kwa kusiyana kwa mitundu, pomwe ma LED apamwamba amatha kuposa mitundu yonse pakuwala kwambiri.
7) Ngodya Yowonera: OLED Ndi Yokhazikika Kwambiri
Ngati nthawi zambiri mumaonera ndi banja lanu ndipo mipando ili yotambasulidwa mbali, mbali yowonera ndi yofunika kwambiri.
– OLED ili ndi ngodya yowonera yayikulu kwambiri: mitundu ndi kusiyana kwake zimakhala zokhazikika ngakhale zikawonedwa kuchokera mbali.
– Ma LED (makamaka ma panel a VA) nthawi zambiri amataya kusiyanitsa ndi kulondola kwa mitundu akamaonedwa kuchokera pa ngodya. Ma panel a IPS nthawi zambiri amakhala bwino pa ma angles owonera, koma nthawi zambiri amataya kusiyanitsa poyerekeza ndi ma panel a VA.
Pogwiritsa ntchito chipinda chochezera, OLED nthawi zambiri imamveka ngati "yachilungamo" kwa owonera onse.
8) Kuyenda ndi Kuyankha: OLED ndi Yachangu, Koma Ikufunikabe Kukhazikitsidwa
Pa mafilimu ochitapo kanthu, masewera, ndi masewera, luso loyendetsa mayendedwe limaonekera kwambiri.
- OLED imakhala ndi nthawi yoyankha mwachangu kwambiri, zomwe zimapangitsa kuti mayendedwe aziwoneka ofooka kwambiri. Izi zimapangitsa kuti zinthu zoyenda zizioneka zakuthwa kwambiri.
– Ma LED amatha kusiyana: ena ndi abwino kwambiri, koma nthawi zambiri ma LCD panels amayankha pang'onopang'ono kuposa ma OLED.
Komabe, OLED ndi LED nthawi zambiri zimafunabe zinthu zosinthira kayendedwe (zomwe nthawi zina zimayambitsa "soap opera effect") kapena makonda ochepetsa kayendedwe/blur kuti zigwirizane ndi zomwe mumakonda.
9) Kufanana kwa Chinsalu: OLED poyerekeza ndi LED mu Zithunzi Zamdima ndi Zowala
Kufanana ndi kuthekera kwa sikirini kuwonetsa mitundu kapena imvi mofanana popanda madontho.
- Ma TV a LED amatha kuwona "zowoneka zonyansa" (DSE) akamaonera mpira kapena akuwonera zinthu m'mlengalenga. Izi zimachitika chifukwa cha kusiyana kwa magawidwe a panel ndi backlight.
- Ma OLED nthawi zambiri amakhala abwino kwambiri pazinthu zambiri, ngakhale kuti mayunitsi ena amatha kuwonetsa mikwingwirima yocheperako mumitundu ina yakuda. Komabe, nthawi zambiri ma OLED amayamikiridwa chifukwa chowonekera bwino.
10) Chiwopsezo cha Kutentha mu OLED ndi Kulimba kwa LED
Pokambirana za ubwino wa chithunzi, pali zinthu zomwe zimatenga nthawi yayitali.
Ma OLED ali ndi kuthekera kowotcha (zithunzi zosatha) ngati akuwonetsa zinthu zosasinthasintha kwa nthawi yayitali komanso yobwerezabwereza, monga ma logo a TV, ma HUD amasewera, kapena zowonetsera nkhani. Ngakhale ma OLED ambiri amakono ali ndi chitetezo (kusintha ma pixel, zosungira pazenera, zolipirira), chiopsezo chimakhalabe - makamaka akagwiritsidwa ntchito kwambiri.
Ma LED alibe ma OLED oyaka ngati magetsi, zomwe zimapangitsa kuti akhale "odekha" kuti agwiritsidwe ntchito ngati ma TV a nkhani, zowunikira zambiri, kapena kugwiritsa ntchito kwa nthawi yayitali ndi zinthu zosasinthasintha.
Pomaliza: Ndi chiyani chomwe chili chabwino pa khalidwe la chithunzi?
Ngati cholinga chanu chachikulu ndi chithunzi cha kanema—chakuda kwambiri, kusiyana kwabwino, maluwa ochepa, komanso ma angles owonera ambiri—OLED nthawi zambiri imakhala yabwino kwambiri ndipo ndi chisankho chabwino kwambiri poonera makanema m'zipinda zowala pang'ono kapena usiku.
Komabe, ma LED apamwamba kwambiri, makamaka ma Mini-LED okhala ndi kuwala kwabwino kwapafupi, akhoza kukhala chisankho chabwino kwambiri cha zipinda zowala chifukwa cha kuwala kwawo kwakukulu komanso HDR yowala. Ma LED nawonso ndi otetezeka kugwiritsidwa ntchito kwa nthawi yayitali ndi zinthu zosasinthasintha.
Pomaliza, chisankho chabwino kwambiri chimadalira momwe mumawonera komanso momwe chipinda chanu chilili. Ngati mukufuna kuti muwonere kanema kunyumba, OLED nthawi zambiri imakhala yovuta kuigonjetsa. Koma ngati nthawi zambiri mumaonera masana ndi kuwala kwamphamvu kapena kulimba popanda chiopsezo cha kutentha, LED yapamwamba ikhoza kukhala njira yabwinoko.
