I-backlight ye-LED ibhekisela ekusetshenzisweni kwama-LED (ama-light emitting diode) njengomthombo we-backlight we-liquid crystal display, kuyilapho isibonisi se-LED backlight siwumthombo wokukhanya wangemuva kwesibonisi se-liquid crystal esisuka kushubhu yokukhanya ebandayo ye-CCFL yendabuko (efana nezibani ze-fluorescent. ) kuya ku-LED (i-diode ekhipha ukukhanya).Isimiso sokucabanga sekristalu ewuketshezi singaqondakala kalula njengeqiniso lokuthi i-voltage yangaphandle esetshenziswa ukuphambukisa ama-molecule e-crystal ewuketshezi izovimba ukucaca kokukhanya okukhishwa i-backlight njengesango, bese iveza ukukhanya kuzihlungi zombala ezahlukene. imibala ukwakha isithombe.

I-Edge-lit LED backlight

I-backlight ye-LED ekhanyiswe onqenqemeni ukuhlela ukuthi i-LED ifele onqenqemeni lwesikrini se-LCD, bese ifanisa ipuleti lomhlahlandlela wokukhanya, ukuze kuthi lapho imojula yokukhanya kwe-LED ikhipha ukukhanya, ukukhanya okukhishwa onqenqemeni lwesikrini kudluliselwe indawo emaphakathi yesikrini ngepuleti likamhlahlandlela wokukhanya., Ukuze inani eliphelele le-backlight, elivumela isikrini se-LCD ukuthi sibonise izithombe.

Ukwakhiwa kwe-Edge-lit LED backlight

Ngokuthuthuka okuqhubekayo kobuchwepheshe, i-backlight ye-LED eseceleni izothuthuka isuka ku-LED eyodwa ezinhlangothini ezingenhla nezingezansi kuya kwe-LED yokugcina enohlangothi olulodwa.Ngokuvamile, i-TV eyodwa ene-backlight ye-LED ezinhlangothini zombili ze-32" engabonakala emakethe isebenzisa ama-LED angaba ngu-120 kuya kwangu-150. Uma ukukhanya kwe-TV okungemuva kushintshwa kube yi-LED eyodwa, inani lama-LED lingancishiswa libe ngu-80-100 ( okungagcina kuncishiswe Inani lama-LED lincike kubuchwepheshe bomkhiqizo). Uma ubuchwepheshe bufaniswa, esikhathini esizayo esibonakalayo, i-LED eyodwa izophendulwa isuke ohlangothini olude (phezulu noma phansi) iye ohlangothini olufushane (kwesokunxele noma kwesokudla ) Lolu hlobo loshintsho luzosebenzisa Inombolo encane ye-LED yezinhlayiya.

Isandiso sempilo

Ukunciphisa ukusetshenziswa kwama-LED akugcini nje ngokuba nomthelela omuhle ekulawuleni izindleko, kodwa sibona neminye imiphumela emihle kumamojula.Isibonelo, izinga lokushisa lemojula lizoncishiswa ngenxa yokusetshenziswa okuncane kwama-LED.Uma sithatha lokhu okungenhla okungu-32" LCDTV njengesibonelo, ukusetshenziswa okuncane kwenombolo yama-LED kungehlisa izinga lokushisa lemojuli cishe ngo-10% -15%. Ngisho nama-TV, kusukela Ekukhulumeni Ngokujwayelekile, ukuncishiswa kwezinga lokushisa kufanele kube nomthelela omuhle empilweni yezingxenye ze-elekthronikhi Lolu sizo lubonakala kakhudlwana endaweni enkulu yama-TV amalambu angemuva e-LED, ngoba kukhona ama-LED ambalwa angavamile ukusetshenziswa.

I-engeli yokubuka ebanzi

Ngaphezu kwalokho, ukusetshenziswa kwezixazululo zefilimu ezithuthukisa ukukhanya okusebenzayo nakho kudlala indima enhle ekubukeni kwe-TV.Ngoba umgomo wezobuchwepheshe wefilimu yokuthuthukisa ukugqama okuphezulu ukudlulisa ukukhanya okwenziwe ngemibalabala kumojuli yesibani sangemuva ukuze sijikeleze futhi sibonise size singene engilazini.Imojuli ye-backlight esebenzisa ifilimu yokuthuthukisa ukugqama ithuthukisa ukukhanya cishe ngo-30% uma kuqhathaniswa nemojuli engasebenzisi ifilimu yokubona.Njengoba ifilimu yokuthuthukisa ukugqama kokusebenza okuphezulu ihlukile kufilimu yeprism evamile, ayidingi ukudela i-engeli yokubuka ukuze kwandiswe ukukhanya, ngakho ifilimu enjalo yokuthuthukisa ukugqama kokusebenza okuphezulu idume kakhulu kubakhiqizi be-TV basekhaya nabangaphandle.Ngokukhula kwendawo yama-LCDTV, abathengi sebeqalile ukuba nezidingo ezithile zokubuka ama-engeli.I-LCD TV engu-47" enamayintshi angaphezu kuka-10,000 ibekwe phakathi negumbi lokuhlala. Yebo, inhloko yekhaya inethemba lokuthi izihambeli ezihlezi kunoma iyiphi i-engeli zingajabulela ikhwalithi efanayo yesikrini se-TV.

Ukonga amandla nokonga amandla

Yiqiniso, umphakathi ungathola ngokuqondile izinzuzo zamalambu angemuva e-LED akhanya onqenqemeni, okuwukuncipha kokusetshenziswa kwamandla kuwonke we-TV.I-Ordinary 32" LED backlight TV, ileveli yamanje ivamise ukusebenzisa cishe u-80W. Leli zinga lilingana nezinga lesithathu kumazinga akamuva kazwelonke awonga amandla.

Uma abakhiqizi befuna ukuthuthukisa amazinga okusetshenziswa kwamandla e-TV, kunezixazululo eziningi ezihambisanayo, kodwa ukusebenzisa ifilimu yokuthuthukisa ukukhanya okusebenza kahle kufanele kube indlela elula neqondile nephumelelayo yokuthuthukisa ukusebenza kokusetshenziswa kwamandla.Uma kuhlanganiswe nefilimu yokuthuthukisa ukugqama kokusebenza okuphezulu, ukusetshenziswa kwamandla kungancishiswa cishe ngo-20% -30% kuyilapho kugcinwa izinga elifanayo lokukhanya (ukusebenza kokugcina kuncike kubuchwepheshe bomkhiqizo ngamunye).Kusukela ekubalweni kwezinombolo, ukusetshenziswa kwamandla kwe-TV kungathuthukiswa kusuka ku-80W kuya cishe ku-60W ngefilimu esebenza kahle kakhulu yokuthuthukisa ukukhanya.Ukwenziwa ngcono kokusetshenziswa kwamandla akuvumeli nje kuphela ukuthi abakhiqizi basebenzisane ngamandla nenqubomgomo kazwelonke yokuvikelwa kwemvelo, kodwa futhi kusiza abathengi ngezikweletu zikagesi ezihlobene.

Kusukela ekuhlaziyweni okungenhla kobuchwepheshe, siyabona ukuthi idizayini ye-backlight ekhanyiswe onqenqemeni inenzuzo enkulu kubakhiqizi nakubathengi.Esikhathini esizayo esiseduze, ama-LED anohlangothi olulodwa anokukhanya onqenqemeni kufanele abe indawo yokugcina yezibani zangemuva ze-LED.

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● Imishini yokuxhumana: umakhalekhukhwini, ucingo, okhiye bomshini wefeksi ukukhanya kwangemuva
● Ibhodi lokusayina elingaphakathi
● Idivayisi ephathwayo: Inkomba yesiginali
● Iselula: Inkomba yenkinobho ye-backlight, ithoshi
● Usayizi omncane nomaphakathi we-LCM: ukukhanya kwangemuva
● I-PDA: Isibonisi sokhiye wangemuva