Xa kuziwa kwii-TV ze-LCD ( ii-TV ze-LED zi-TV ze-LCD! ), Abaninzi abathengi bacinga ukuba i-LCD ilingana ne-HDTV. Nangona kunjalo, kufuneka kuqatshelwe ukuba igama elithi "LCD" alinanto enokuyenza ngesisombululo, kodwa iteknoloji esetyenziselwa ukudala umfanekiso obonwa kwi-screen LCD yekrini. Iipaneli ze-TV zeLCD zingenziwa ukubonisa izigqibo ezithile, ezichazwe kwiiPixels . Kwakhona kubalulekile ukubonisa ukuba ubungakanani bekrini ye-LCD TV ayithethi ngokuzenzekelayo ukuba yi-HDTV okanye.
Oku kulandelayo kukuchaza indlela ukusebenzisana kwe-LCD kwezobuchwepheshe kunye nesisombululo sokubonisa.
SDTV kunye ne-EDTV
Ukuba unayo i-LCD TV eyenziwe ekuqaleni kwe-2000 okanye ngaphambili, ingenokuba yi-SDTV (i-Standard Definition TV) okanye i-EDTV (i-Extended Definition TV) kwaye ayikho i-HDTV.
I-SDTV inesisombululo sesiboniso esingu-740x480 (480p). I-"p" imele iqhube phambili yokukhangela , yindlela indlela i-LCD TV ibonisa ngayo iipekseli kunye nemifanekiso kwisikrini.
I-EDTV inesisombululo se-pixel sokuzalwa sama-852x480. I-852x480 imele iipeliseli ezingama-852 ngaphaya (kwesobunxele kuya kwesokudla) kunye nee-pixels ezingama-480 ezantsi (phezulu ukuya phezulu) kwi-screen surface. Iipekseli ezingama-480 phantsi kwakhona zimela inani leemiqolo okanye imigca ukusuka phezulu ukuya ngasezantsi kwesikrini. Oku kuphezulu kuneenkcazo eziqhelekileyo, kodwa ayihambisani neemfuno ze-HDTV isisombululo.
Imifanekiso kulezi setethi inokubonakala ibonakala kakuhle, ngakumbi iiDVD kunye nekhebula ledijithali eliqhelekileyo, kodwa ayikho i-HDTV. I-DVD yiForm Definition format ixhasa i-480i / p isisombululo (ii-pixels ezi-740x480).
LCD kunye ne-HDTV
Ukuze kukho nawuphi na iThelevishini (oku kuthetha ukuba i-TV ye-LCD) ukuba ibekwe njenge-HDTV, kufuneka ikwazi ukubonisa isisombululo esifanelekileyo semigqa 720 (okanye imigqa ye-pixel). Iziboniso zesikrini ezihambelana nale mfuneko (kwii-pixels) zi-1024x768, i- 1280x720 kunye ne-1366x768.
Ekubeni iithelevishini zeLCD zinenani elingaphelisiweyo leepekseli (ezibhekiselwe njengombonakaliso olusisigxina-pixel), iziphumo zamanqaku ezinemigangatho ephakamileyo kufuneka zilandelwe ukuba zilungele ukubala kwenombolo yepikel ye-LCD.
Ngokomzekelo, ifomathi yokufakelwa kwe-HDTV ye- 1080i okanye i-1080p idinga ukubonakaliswa komthonyama wee-pixels ze-1920x1080 kwindawo yokubonisa nganye kwi-HDTV. Kwakhona, njengoko kukhankanyiwe ngaphambili, i-LCD Televisions ibonisa ukuhlaziya imifanekiso, i-1080i impawu zendalo zihlala zivela deinterlaced ukuya kwi-1080p okanye ziphantsi ukuya kuma-768p (i-1366x768 pixels), 720p, okanye i-480p kuxhomekeke kwisisombululo se-pixel somthonyama weLCD .
Ngamanye amazwi, akukho nto injenge-1080i ye-LCD TV. I-TV ye-LCD iyakubonisa kuphela ividiyo kwifomathi yokuhlaziya, ngoko ke ukuba i-LCD yakho yeTV ivuma isignali yesisombululo se-1080i, i-LCD TV kufuneka ikhuphe i-LCD TV ibe i-720p / 768p kumaTV kunye ne-1366x768 okanye i-1280x720 yepelisi isisombululo okanye i-1080p kwii-TV ze-LCD nge-1920x1080 isisombululo se-pixel esizalwayo.
Kwakhona, ukuba i-LCD ithelevishini yakho inomhlaba we-pixel we-852x480 okanye i-1024x768, isalathisi ye-HDTV yokuqala kufuneka ifakwe kumlinganiselo we-852x480 okanye u-1024x768 umlinganiselo wepikseli kwi-screen LCD. Iimpembelelo zegciwane le-HDTV kufuneka zihlulwe phantsi ukuze zilungele insimu ye-pixel yangaphandle yeLCD Television.
I-Ultra HD TV kunye neNgaphandle
Ngentuthuko ekuboniseni iteknoloji yokuvelisa, kukho inani elinyukayo le-TV yeLCD elinika i- 4K (3840x2160 pixels) isisombululo sokubonisa (esibizwa ngokuba yi-Ultra HD).
Kwakhona, iiTV ezikwazi ukuxhasa isisombululo se-8K (i-7680 x 4320 pixels) azifumaneki kubathengi ngo-2017, kodwa, mazijongwe njengoko zikulindeleke ukuba zifikeleleke, ubuncinci kumanani amancinci, ngo-2020.
Ngaphantsi
Xa uthengisa i-LCD TV kule mihla, unokuqiniseka ukuba abaninzi banokuhlangabezana neemfuno ezincinci eziza kubalwa njenge-HDTV. AmaTV kunye nobukhulu bekrini-intshi ezingama-32 okanye ngaphantsi unokuba ne-720p okanye i-1080p izigqibo zendalo, ii-TV ezingama-intshi ezingama-39 kunye nezinkulu zingabonakalisa i-1080p (HDTV) okanye i-Ultra HD (4K) iziboniso zokubonisa.
Nangona kunjalo, kukho iziganeko kwezinye iiTV ii-intshi ezingama-24 kunye neincinci, apho ungasifumana isisombululo sesiboniso se-1024x768, kodwa oko kuyaqabilekile kule mihla.
Gcina nje ukhumbule ukuba kusekho i-LCD yamaTV asekudala ekusebenziseni okungekho i-SDTV okanye i-EDTVs - ukuba awuqinisekanga ukuba yeyiphi eyakho, qaphela ukubhaliswa kwephakheji, qha ga mshelana nomsebenzisi wakho, okanye qha ga mshelana nenkxaso yakho ye-brand / umzekelo ukuba oko kwenzeka.