Kana zvasvika kune LCD TVs ( LED maTV ndiLCD TV! ), Vashandi vakawanda vanofunga kuti LCD yakafanana neHDTV. Zvisinei, inofanira kuonekwa kuti izwi rokuti "LCD" harina chokuita nekugadzirisa, asi teknolojia yakashandiswa kugadzira mufananidzo unoonekwa pane LCD TV screen. LCD TV mapurisa anogona kuitwa kuti aratidze kusarudzwa kwakajeka, iyo inotaurwa muPixels . Zvakakoshawo kuratidza kuti ukuru hweLCD TV screen hazvirevi kuti ndeye HDTV kana.
Izvi zvinotevera tsanangudzo yekuti kushamwaridzana kweLCD teknolojia nekuratidzwa kwekuratidzira kunopindirana sei.
SDTV uye EDTV
Kana Iwe uine LCD TV iyo yakagadzirwa kumavambo kwema 2000 kana apfuura, inogona kunge iri SDTV (Standard Definition TV) kana EDTV (Extended Definition TV) uye kwete HDTV.
SDTVs ine kuratidza kuratidzwa kwe 740x480 (480p). I "p" inomiririra kufambira mberi , iyo nzira iyo LCD TV inoratidza pixels nemifananidzo pachikona.
EDTV inowanzova nechinangwa chepixel yekugadzirisa 852x480. 852x480 inomiririra 852 pixels kumativi (kuruboshwe kuenda kurudyi) uye 480 pixels pasi (kumusoro kusvika pasi) pachikwangwani pamusoro. Maikorosi mazana mana pasi zvakare anomiririra nhamba yemitsara kana mitsara kubva kumusoro kusvika pasi pekona. Izvi zvakakwirira kudarika tsanangudzo yakazara, asi haitauri zvinodiwa neHDTV chisarudzo.
Mifananidzo iri pazvikwereti ichi inogona kutarisa zvakanaka, kunyanya maDVD uye maikiramu akadii digital, asi haisi HDTV. DVD ine Standard Definition format inotsigira 480i / p chisarudzo (740x480 pixels).
LCD uye HDTV
Kuti chero yeTerevhizheni (iyo inorevawo kuti LCD TV) inorondedzerwa seHDTV, inofanira kukwanisa kuratidza kugadzirisa kwakakwana kwemashoko makumi manomwe (kana kuti mizere yepikisi). Svondo rinoratidza zvirarudzo zvinoenderana neizvi (mumapikiseli) ndeye 1024x768, 1280x720 , uye 1366x768.
Sezvo LCD terevhizheni ine nhamba yakakwana yemapiksesi (inonzi se-fixed-pixel kuratidza), zviratidzo zvemashoko zvine mazano makuru zvinofanira kuiswa kuti zvikwanise pikisi yeminda yepamusoro yeRCD inooneka.
Semuenzaniso, iyo inowanzoiswa mavhidhiyo eHTT 1080i kana 1080p inoda kuratidzwa kwekuzvarwa kwe 1920x1080 pixels imwe chete-imwe-imwe kuratidza mufananidzo weHDTV. Uyezve, sezvo, sezvataurwa kare, LCD Televisions inongoratidzira zvishoma nezvishoma mifananidzo, 1080i zviratidzo zvinowanzobva deinterlaced kusvika 1080p kana kuvhara kusvika ku 768p (1366x768 pixels), 720p, kana 480p zvichienderana nehutano hwepxel resolution yeLCD chaiyo .
Mune mamwe mazwi, hapana chinhu chakadai seLCD 1080i. LCD TVs inogona kuratidzira mavhidhiyo mune imwe nzira yekufambisa, saka kana LCD yako inogamuchira chiratidzo chekupinza maonero 1080i, LCD TV inofanira kushandura uye inobvisa chiratidzo chekuta 1080i pane 720p / 768p paTV ne 1366x768 kana 1280x720 chizvarwa chepikisi chisarudzo kana 1080p paLCD TV ne 1920x1080 chizvarwa chepikelisi yekugadzirisa.
Uyezve, kana LCD yako yeTV inenge ine pixel munda we 852x480 kana 1024x768, chiratidzo chepakutanga cheHDTV chinofanira kuenzaniswa kuti chikwanise 852x480 kana 1024x768 pixel count paLCD screen surface. Mitsara yeHDTV yezviratidzo inofanira kuiswa pasi kuti ienderane neLCD Television yekuzvarwa pixel field.
Ultra HD TV uye Beyond
Nekufambira mberi mukuratidzira teknolojia yekugadzira, kune nhamba inowedzera yeLCD TV iyo inopa 4K (3840x2160 pixels) kuratidzira kuratidza (inonzi Ultra HD).
Uyezve, maTV anokwanisa kutsigira sarudzo ye8K (7680 x 4320 pixels) haawaniki kune vatengi kubva muna 2017, asi, ivai vatarisiri sezvavanotarisirwa kuti vachazosvikeka, kunyanya mudiki mazita, kusvika 2020.
The Bottom Line
Paunenge uchitenga LCD TV mazuva ano, unogona kuva nechokwadi chokuti vazhinji vanosangana zvishoma nezvishoma zvinoda kuverengwa seHDTV. Terevhizheni dzine screen-size 32-inches kana zvishoma zvingava ne 720p kana 1080p dzarudzo dzedzinza, maTV 39-inches uye yakakura inogona kuva 1080p (HDTV) kana Ultra HD (4K) yemararamiro ekuratidza mazano.
Zvisinei, panogona kunge kune zviitiko pane mamwe maTV 24 masendimita uye maduku, apo ungasangana nesarudzo yekuratidzira 1024x768, asi izvozvo hazviwanzoitiki mazuva ano.
Chengetedza mupfungwa kuti kune vamwe vakwegura veLCD TV mumashandisirwo angave ari SDTV kana EDTV - kana iwe usingazivi kuti ndeipi yako, tarisa ruzivo rwekuisa pakero, shandisa bhuku rako rekushandisa, mufananidzo kana izvozvo zvichibvira.