Uma kuziwa kuma-TV e-LCD (ama-TV e- LED angama-TV e-LCD! ), Abathengi abaningi bacabanga ukuthi i-LCD ilingana ne-HDTV. Noma kunjalo, kufanele kuqaphele ukuthi igama elithi "LCD" alihlangene nokuxazulula, kepha ubuchwepheshe busetshenziselwa ukwakha isithombe esibonakala kwiskrini se-LCD TV. Ama-panel we-LCD TV angenziwa ukuze abonise izinqumo ezithile, okushiwo kuma- Pixels . Kubalulekile ukuveza ukuthi ubukhulu beskrini se-LCD TV asisho ngokuzenzakalelayo ukuthi i-HDTV noma.
Lokhu okulandelayo kuyincazelo yokuthi ukusebenzisana kobuchwepheshe be-LCD kanye nesinqumo sokubonisa kubonisana kanjani.
I-SDTV ne-EDTV
Uma Unayo i-LCD TV eyenziwe ekuqaleni kuka-2000 noma ngaphambili, ingase ibe yi-SDTV (Standard Definition TV) noma i-EDTV (Extended Definition TV) hhayi i-HDTV.
Ama-SDTV anesinqumo sokubonisa esingu-740x480 (480p). I "p" imelela ukuskena okuqhubekayo , indlela i-LCD TV ebonisa ngayo amaphikseli nemifanekiso kusikrini.
Ama-EDTV ngokuvamile anezixazululo ze-pixel zendawo yama-852x480. I-852x480 imelela amaphikseli angu-852 kuwo wonke (kwesobunxele kuya kwesokudla) nama-pixel angu-480 phansi (phezulu kuya phansi) emkhathini weskrini. Amaphikseli angu-480 phansi aphinde amele inani lemigqa noma imigqa kusuka phezulu kuya phansi kweskrini. Lokhu kuphakeme kuncazelo ejwayelekile, kodwa ayihlangabezani nezidingo ze-HDTV isinqumo.
Izithombe ezisezi zinethi zingabonakala zihle, ikakhulukazi kuma-DVD kanye nekhebula ledijithali elijwayelekile, kodwa akuyona i-HDTV. I-DVD iyiFomethi Yokuchaza Okujwayelekile isekela i-480i / p isixazululo (amaphikseli angu-740x480).
I-LCD ne-HDTV
Ukuze noma yikuphi i-Television (okusho nangokuthi i-LCD TV) ukuthi ihlukaniswe njenge-HDTV, kufanele ikwazi ukubonisa ukucaca okuqondile okungenani imigqa engu-720 (noma imigqa ye-pixel). Ukubonisa izikrini ezihambisana nale mfuneko (ngamaphikseli) ngu-1024x768, 1280x720 , no-1366x768.
Njengoba amathelevishini e-LCD anenombolo ephelele yamaphikseli (okubizwa ngokuthi ukukhonjiswa kwe-pixel fixed), izimpendulo zesignali ezinamaphakamiso aphezulu kufanele zilinganiselwe ukulingana nokubala kwensimu ye-pixel yesiboniso esithile se-LCD.
Isibonelo, ifomethi ejwayelekile ye-HDTV yokufaka i- 1080i noma i-1080p idinga ukuboniswa komdabu wama-pixels angu-1920x1080 ngokubonisa okukodwa kokukodwa kwesithombe se-HDTV. Futhi, njengoba kukhulunywe ngaphambilini, i-LCD Televisions ibonisa kuphela izithombe ezithwetshulwayo, izimpawu ezingu-1080i zomsakazo zihlala zichithwa kuze kube ngu-1080p noma zifinyelele kuma-768p (1366x768 pixels), 720p, noma 480p kuye ngokuthi isinqumo se-pixel somdabu se-LCD .
Ngamanye amazwi, ayikho into enjenge-1080i ye-LCD TV. Ama-TV e-LCD angabonisa kuphela ividiyo kumafomethi wokuskena okuqhubekayo, ngakho-ke uma i-LCD yakho ye-TV yemukela isignali yokuxazulula okufakwayo kwe-1080i, i-LCD TV kufanele iguqule futhi isuse isignali yokufaka engu-1080i ku-720p / 768p kumaThishini nge-1366x768 noma i-pixel eyi-1280x720 yangempela isinqumo noma i-1080p kuma-TV e-LCD nge-1920x1080 isinqumo se-pixel esendabuko.
Futhi, uma i-LCD ithelevishini yakho inomkhakha we-pixel ka-852x480 noma u-1024x768, isignali ye-HDTV yokuqala kufanele ilandelwe ukulingana nokubalwa kwamaphikseli angu-852x480 noma angu-1024x768 ku-screen LCD screen. Izimpendulo zesignali ze-HDTV kufanele zenziwe phansi ukuze zivumelane nensimu ye-pixel yomdabu ye-LCD Television.
I-Ultra HD TV ne-Beyond
Ngentuthuko ekuboniseni ubuchwepheshe bokukhiqiza, kunenombolo ekhulayo yama-TV e-LCD ahlinzeka nge- 4K (3840x2160 pixels) isinqumo sokubonisa (esibizwa nge-Ultra HD).
Futhi, ama-TV angase asekele ukulungiswa kwe-8K (7680 x 4320 pixels) ayitholakali kubathengi kusukela ngo-2017, kodwa, bahlale bebheke njengoba kulindeleke ukuthi bazofinyeleleka, okungenani ngezinombolo ezincane, ngo-2020.
Okubalulekile
Uma uthengisa i-LCD TV kulezi zinsuku, ungaqiniseka ukuthi iningi labantu lihlangabezana okungenani nezidingo ezincane okufanele zihlukaniswe njenge-HDTV. Ama-TV anezibuko zesikrini ama-32-intshi angu-32 noma ngaphansi angase abe nezinqumo zokuzalwa zomhlaba ezingu-720p noma ezingu-1080p, ama-TV angama-intshi angu-39 futhi amakhulu angabandakanya izinqumo ezingu-1080p (HDTV) noma i-Ultra HD (4K) eziboniswayo.
Kodwa-ke, kungase kube khona amacala kwamanye ama-TV angama-intshi angu-24 futhi amancane, lapho ungase uhlangabezane nesinqumo sokuboniswa ngu-1024x768, kodwa lokho akunakwenzeka ngalezi zinsuku.
Hlala ukhumbula ukuthi kusekhona amanye ama-TV e-LCD asebekhulile asetshenziswayo okungenzeka abe yi-SDTV noma ama-EDTVs - uma ungaqiniseki ukuthi yiyiphi eyakho, qaphela ukubhalwa kwephakheji, xhumana nombhalo wakho womsebenzisi, noma uxhumane nenkxaso ye-tech ye-brand / imodeli uma kungenzeka.