4K Ultra HD yana a nan: Menene kuma abin da ke nufi don kallon TV
4K tana nufin ɗaya daga cikin mahimman shawarwari biyu: 3840 x 2160 pixels ko 4096 x 2160 pixels. 4K ne sau hudu ƙuduri na pixel, ko sau biyu ma'auni na layin (2160p), na 1080p (1920 x 1080 pixels) . Sauran shawarwari masu mahimmanci da suke amfani da su shine 720p da 1080i .
4K an yi amfani da wannan tsari a cinikin fina-finai na kasuwanci da amfani da zaɓi 4096 x 2160, inda aka harbe fim din ko aka yi amfani da fina-finai a 4K ta hanyar upkcaling daga 2K (1998 x 1080 don kashi 1.85: 1 ko 2048 x 858 na kashi 2.35: 1) .
A karkashin takardun kamfani guda biyu, Ultra HD da UHD, 4K an kafa shi a gidan wasan kwaikwayo ta gida, ta amfani da 3840 x 2160 pixel zaɓi, ta hanyar yawan adadin masu karɓar wasan kwaikwayon gida wanda ke da kyan 4K ta hanyar da / ko 4K video upscaling iyawa, da TV, masu bidiyon bidiyon , da na'urori masu mahimmanci, irin su magunguna, Mai watsa shirye-shiryen Blu-ray da Ultra HD, da kuma 'yan wasan Blu-ray Disc wadanda suke amfani da 4K upscaling.
Bugu da ƙari ga Ultra HD ko UHD, 4K ana kiransa a cikin saitunan sana'a kamar 4K x 2K, Ƙananan High Definition, 4K Ultra High Definition, Quad High Definition, Quad Resolution, Quad Full High Definition, QFHD, UD, 2160p
Me yasa 4K?
Abin da ya sa 4K mahimmanci shi ne cewa tare da yin amfani da girman girman tallar TV da mabudin bidiyon, yana bada cikakkun bayanai da ƙananan siffofin pixel waɗanda ake gani fiye da 1080p. 1080p yana dubi har zuwa kimanin inci 65, kuma har yanzu yana da kyau a cikin girman girman allo, amma 4K zai iya ba da hoto mafi kyau yayin da masu girma masu girma ke ci gaba da ƙarawa.
Yadda ake aiwatar da 4K
Akwai yalwa na 4K Ultra HD TV , da kuma ƙananan maƙalar hotuna 4K da 4K .
4K abun ciki yana samuwa daga magunguna masu yawa, irin su Netflix, Vudu, da Amazon, da kuma ta hanyar hotunan Ultra HD Blu-ray Disc da 'yan wasan . Yana da muhimmanci a lura cewa ko da yake akwai 'yan wasan Blu-ray masu yawa da ƙananan kwaston Blu-ray na 1080p zuwa 4K, kawai na'urar na'urar Blu-ray Disk Blu-ray Disc na iya kunna fayilolin da ke dauke da ƙirar 4K.
A kan hanyar USB / tauraron dan adam, DirecTV zai iya sadar da rubuce-rubuce da rikodi ta 4K ta hanyar tauraron dan adam zuwa masu biyan kuɗi (idan suna da akwatin tashar tauraron mai jituwa da biyan kuɗi zuwa shirin da ya dace). A gefen gefen, abin yana cikin ayyukan, amma babu wani abu mai mahimmanci.
Duk da haka, watsa shirye-shiryen talabijin na kan-da-iska shine inda abubuwa suke lagging. 4K Ana watsa gwadajin TV tare da Koriya ta Kudu ta jagoranci, sannan Amurka ta bi ta. Duk da haka, babban babban kuskure shi ne cewa kayan lantarki da ake bukata ba dace da tsarin watsa shirye-shirye na HDTV na yanzu ba.
Don ƙarin bayani game da cigaban ci gaban watsa shirye-shirye na 4K, koma zuwa labarinmu: ATSC 3.0 - Mataki na gaba a Harshen Watsa shirye-shirye na TV .
Abin da 4K Yake nufi ga masu amfani
Ƙara yawan samuwa na 4K yana ba masu amfani kyauta girman hotunan bidiyon don ƙarin aikace-aikacen allon fuska, kuma zai iya rage yawan damar masu kallo don ganin kowane siffar pixel a kan allon sai dai idan kun sanya kusa sosai. Wannan yana nufin maƙasanci da zurfi. Lokacin da aka haɗa tare da hanyoyi masu saurin sauri, 4K yana da damar yada kusan zurfi kamar 3D - ba tare da bukatar gilashin ba.
Yin amfani da Ultra HD bai sanya kyamara 720p ko 1080p ba (watau 4K Ultra HD TV tallace-tallace karba da farashin wasu sauka, kadan 720p da 1080p TVs da ake yi), da kuma yanzu HDTV TV watsa shirye-shirye za su kada a watsi da wani lokaci ba da daɗewa ba, kamar yadda ATSC 3.0 ya fara samuwa don amfani don watsa bayanai.
Tabbas, kamar dai yadda yaƙin na DTV na 2009, za'a iya samun kwanan wata da lokaci wasu inda 4K zai zama misali na watsa shirye-shiryen talabijin na yau da kullum, amma wannan yana nufin yawancin kayan aikin yana bukatar zama a wurin.
Ƙara koyo game da aiwatar da 4K a fadin disc, streaming, da kuma dandamali watsa shirye-shirye a cikin abokiyar abokinmu: Abinda kuke Bukata Don Dubi 4K Resolution On An Ultra HD TV
Idan kun ji cewa kuna shirye su yi tsalle zuwa 4K, duba jerin jerin abubuwan da ke da kyau na 4K Ultra HD TV .
Bayan 4K da Ultra HD
Abin da ya wuce 4K? Ta yaya game da 8K? 8K ne sau 16 da ƙudurin 1080p . An nuna nau'i-nau'i 8K TV a cikin shekaru da dama da suka wuce kuma akwai masu duba 8K da suke amfani da su don aikace-aikace na sana'a, amma zaɓuɓɓuka masu amfani don masu amfani suna da wasu hanyoyi - watakila a cikin 2020 zuwa 2025 lokaci.
Resolution Video tare da Megapixels
Ga yadda za a kwatanta 1080p, 4K da 8K ƙuduri zuwa ƙuduri na pixel har ma da ƙananan lambobin dijital da aka saka farashin:
- 1080p (1920x1080) shine 2.1 megapixels.
- 4K (3840 x 2160 ko 4096 x 2160) yana da kimanin 8 megapixels.
- Kawai tare da 8K (7680 x 4320 pixels - 4320p) zaku shiga cikin zangon ƙirar pixel na kyamarori masu mahimmanci na zamani - 33.2 megapixels. Kuna iya ɗaukar hotuna tare da ƙarami mafi girma fiye da yadda zaka iya gani a kan gidan talabijin idan yazo da abun ciki na bidiyo.
Launi, Ƙari, da Ƙari
Tabbas, duk abin da aka ambata a sama, kai ne wanda yake buƙatar ya gamsu da abin da kake gani a kan gidan talabijin dinka - ƙuduri na ɗaya ne, amma abubuwa kamar aiki na bidiyo da haɓakawa, daidaitattun launi, amsa matakin baki, bambanta, girman allo, har ma yadda TV ke dubawa a cikin dakinka yana buƙatar la'akari.
Don ƙarin cikakken duba yadda bambanci da launi suna inganta, tare da 4K ƙuduri, bincika abubuwan abokanmu: HDR: Dolby Vision, HDR10, HLG - Abin da Yake nufi ga masu kallo na TV da kuma Launi na Launi da TV ɗinku .