Pankhani ya TV LCD (Ma TV ndi ma TV LCD! ), Ogula ambiri amaganiza kuti LCD ikufanana ndi HDTV. Komabe, ziyenera kudziwika kuti mawu akuti "LCD" alibe chochita ndi ndondomeko, koma telojiya yogwiritsa ntchito kupanga chithunzi chomwe chikuwonetsedwa pawindo la TV la LCD. Mawindo a TV a LCD angapangidwe kuti asonyeze zosankha zina, zomwe zanenedwa mu Pixels . N'kofunikanso kufotokoza kuti kukula kwa screen ya LCD pa TV sikutanthauza kuti ndi HDTV.
Zotsatirazi ndizofotokozera momwe kugwirizanirana kwa luso la teknoloji ndi chiwonetsero chowonetsera chikutsutsana.
SDTV ndi EDTV
Ngati muli ndi LCD TV yomwe inapangidwa kumayambiriro kwa zaka za 2000 kapena kale, ikhoza kukhala SDTV (Standard Definition TV) kapena EDTV (Extended Definition TV) osati HDTV.
Ma SDTV ali ndi chiwonetsero cha maonekedwe a 740x480 (480p). The "p" imayimira kufufuza patsogolo , momwe LCD TV imawonetsera mapikseli ndi zithunzi pawindo.
EDTV imakhala ndi chikhalidwe cha pixel cha 852x480. 852x480 amaimira pixel 852 (kumanzere kupita kumanja) ndi pixelisi 480 pansi (pamwamba mpaka pansi) pazenera pamwamba. Ma pixelisi 480 pansi amasonyezanso nambala ya mizere kapena mizere kuchokera pamwamba mpaka pansi pa chinsalu. Izi ndizitali kuposa kutanthauzira kwachikhalidwe, koma sizikugwirizana ndi zosankha za HDTV.
Zithunzi pazitsulozi zikhoza kuwoneka zabwino, makamaka ma DVD ndi makina ojambulidwa a digito, koma si HDTV. DVD ndi Standard Definition format imathandizira 480i / p chisankho (740x480 pixel).
LCD ndi HDTV
Kuti TV iliyonse (yomwe imatanthauzanso LCD TV) kuti iwonetsedwe ngati HDTV, iyenera kuwonetsa ndondomeko yowona ya mizere 720 kapena mizere ya pixel. Zojambula pazithunzi zikugwirizana ndi zofunikira izi (mu pixels) ndi 1024x768, 1280x720 , ndi 1366x768.
Popeza ma televizioni a LCD ali ndi mapepala angapo (omwe amatchedwa pixel display), zizindikiro zomwe zili ndi ziganizo zazikulu ziyenera kuwerengedwa kuti zigwirizane ndi chiwerengero cha pixel pamtundu wa LCD.
Mwachitsanzo, mawonekedwe omwe amawoneka a HDTV a 1080i kapena 1080p amafunikira mawonedwe a dziko la 1920x1080 pojambula zithunzi za HDTV imodzi kapena imodzi. Komanso, monga tanenera kale, ma TV a LCD amangojambula pang'onopang'ono zojambula, 1080i zizindikiro zosinthika nthawi zonse zimakhala deinterlaced mpaka 1080p kapena kulemera kwa 768p (1366x768 pixels), 720p, kapena 480p malingana ndi kukonza kwa pixel ya LCD telefoni .
Mwa kuyankhula kwina, palibe chinthu ngati TV 1080i LCD. Ma TV a LCD angangosonyeza kanema pulogalamu yopita patsogolo, choncho ngati LCD yanu ikuvomereza chizindikiro cha 1080i chosinthika, LCD TV iyenera kuchotsa ndi kuyimitsa chizindikiro cha 1080i chowunikira pa 720p / 768p pa ma TV ndi 1366x768 kapena 1280x720 chikhalire choyambirira chisankho kapena 1080p pa LCD TV ndi 1920x1080 chikhalidwe cha pixel chikhalidwe.
Ndiponso, ngati LCD televizioni yokha ili ndi munda wa pixel wa 852x480 kapena 1024x768, chizindikiro choyambirira cha HDTV chiyenera kuwerengedwa kuti chikugwirizana ndi chiwerengero cha pixel 852x480 kapena 1024x768 pawindo la LCD. Majekesero a HDTV amafunika kugwiritsidwa pansi kuti agwirizane ndi munda wa pixel wa LCD Television.
Ultra HD TV ndi Pambuyo
Pogwiritsa ntchito makina opanga makina opanga malonda, pali chiwerengero chowonjezeka cha ma TV a LCD omwe amapereka chiwonetsero cha maonekedwe a 4K (3840x2160) omwe amatchedwa Ultra HD).
Ndiponso, ma TV omwe angathe kuthandizira chisankho cha 8K (7680 x 4320 pixels) sichikupezeka kwa ogula mpaka 2017, koma, dikirani monga momwe akuyembekezeredwa kuti adzafikire, pang'onopang'ono, mu 2020.
Mfundo Yofunika Kwambiri
Mukamagula LCD TV masiku ano, mungatsimikize kuti ambiri amakumana zosachepera zofunikira kuti zikhale ngati HDTV. Ma TV omwe ali ndi mawindo a mawindo 32-mainchesi kapena osachepera akhoza kukhala ndi zisankho za 720p kapena 1080p, ma TV ndi masentimita 39 ndi zazikulu akhoza kukhala ndi maulendo 1080p (HDTV) kapena Ultra HD (4K) omwe akuwonetsera.
Komabe, pangakhale mavoti pa ma TV ena 24 masentimita ndi ang'onoting'ono, kumene mungakumane ndi chiwonetsero cha 1024x768, koma mosakayikira masiku ano.
Kumbukirani kuti pali magetsi akuluakulu a LCD omwe amagwiritsidwa ntchito omwe angathe kukhala a SDTV kapena EDTVs - ngati simukudziwa chomwe muli nacho, onetsetsani zolemba zanu, funsani buku lanu lothandizira, chitsanzo ngati zimenezo zingatheke.