Muva nje, ama-TV we-kinescope ashicilelwe ekugcineni - ayatholakali ezitolo ze-elekthronikhi, ngaphandle kwamanye amakhaya. Kodwa ama-TV amancane, amancane ayithathwa njengokunethezeka nhlobo futhi asetshenziselwa yonke indawo, futhi amamodeli amasha ngezobuchwepheshe obuphambili akhiqizwa njalo ngonyaka. Ngakho-ke, abathengi abangase bakuthole kunzima ukunquma ngokukhetha kokugcina "kwesikrini esibhakabhaka" phakathi kokuningi kwempahla ehlongozwayo. Sizokutshela nge- TV ye-TV nezinzuzo zayo.
Kuyini ubuchwepheshe be-LED?
Ngokuvamile i-LED yisifinyezo ngesiNgisi, esho "ukukhanya okukhanyayo". Le nkulumo ihunyushwa ngesiRashiya nje-LED. Futhi uma sikhuluma ngalokho okushiwo i-LED TV, empeleni kungabizwa ngokuthi i-LCD TV ephakeme.
Kuyaziwa ukuthi uLC ubuchwepheshe obusekelwe ekusetshenzisweni kwe-liquid crystal matrix. Lezi zinsuku ziqukethe amapuleti amabili, phakathi kokufakwa kwamakristalu amanzi. Lapho ukusetshenziswa kwamandla kagesi, baqala ukuhamba. Kodwa ngenxa yezibani zokukhanyisa ebusweni be-matrix kuvela izindawo ezimnyama nezikhanyayo. Futhi izihlungi zombala, ezitholakala ngemuva kwe-matrix, yenza isithombe sombala esibukweni.
Ngokuqondene nokuthi yikuphi ukubuyisela emuva kwe-LED, khona-ke isibalo esikhulu se-LED sisetshenziselwa umthombo wokukhanya (ngokungafani ne-backlight LCD, lapho kusetshenziselwa khona izibani ezikhanyayo ezibandayo).
Ngakho-ke, isimiso sokusebenza kwe-TV ye-LED sisekelwe ekukhanyeni kabusha kwamakristali amanzi we-matrix yi-LEDs.
Izinzuzo nezimo ze-TV ze-LED
Ama-TV ane-LED ubuchwepheshe banezinzuzo eziningana. Mhlawumbe, inzuzo enkulu ukusetshenziselwa kwegesi okunciphise: ngokusho kochwepheshe, kufika ku-40% uma kuqhathaniswa nabaqaphi be- LCD , lapho i-backlight yenziwa ngezibani ze-fluorescent.
Ngaphezu kwalokho, ukubhekwa kwe-LED kufinyelela kalula kunoma yimuphi ongaphakathi - ama-LED angakha abaqaphi kuze kufike ku-3-3.5 cm ubukhulu, ngoba empeleni ama-LED asincane kakhulu. Futhi, lokhu akuwona umkhawulo. Ngendlela, kukhona umehluko ekuhlelweni kwama-LED kuma-TV e-LED, lapho ubukhulu be-matrix buxhomeke khona. Endabeni lapho behlelwe ngokulinganayo ngemuva kwephaneli le-TV, bathi kusuka ku-Direct LED. Ngenxa yalokhu, ukukhanya kwesikrini kwenziwa ngokulinganayo. Ngokuqinisekile uzwile ngomsindo omncane kakhulu we-Edge LED TV. Ngokuqondene nokuthi i-Edge LED ibuyiselwa emuva yini, ilungiselelo okuthiwa ama-LED azungeze umkhawulo weskrini ngokusetshenziswa kwesikhashana iphaneli lokuhlakaza. Ngenxa yalokhu, ububanzi bephaneli buncane kakhulu - bungaphansi kuka-3 cm! Ngendlela, ezitolo ze-elekthronikhi ngokuvamile zibizwa ngokuthi yi-Slim LED - yikuphi? Ukuqokwa kwamathelevishini okungenani ubukhulu bomzimba ngu-22.3 mm. Ngokujwayelekile izibonelo ezinjalo zibukeka zingenalo ifreyimu ejwayelekile ezizungezile esikrinini, nakuba empeleni ingaphansi kwengilazi yesikrini.
Inzuzo enkulu yamaTV we-LED angabizwa futhi athuthukiswe ikhwalithi yesithombe. Ngokuqaliswa kwe
Impendulo eyinhloko ye-TV ye-LED yindleko zayo eziphezulu ekulinganisweni kwamathelevishini nezinye izinhlobo zokukhanyisa. Kodwa-ke, kukholelwa ukuthi njengoba ubuchwepheshe buthuthukisa, ukukhiqizwa kwe-TV ne-LED ukukhanyisa kuzothatha umlingiswa omkhulu, ngakho-ke intengo iyancipha kancane kancane.