Kuwala kwa LED kumatanthawuza kugwiritsa ntchito ma LED (ma diode otulutsa kuwala) monga gwero la kuwala kwa kristalo wamadzimadzi, pamene kuwala kwa kuwala kwa LED kumangokhala gwero la kuwala kwa galasi lamadzimadzi kuchokera ku chubu chozizira cha CCFL (chofanana ndi nyali za fulorosenti). ) ku LED (mwala wotulutsa diode).Mfundo yoyerekeza ya kristalo wamadzi imatha kumveka bwino ngati kuti voteji yakunja yomwe imagwiritsidwa ntchito kuti iwononge mamolekyu amadzimadzi amadzimadzi amalepheretsa kuwonekera kwa kuwala komwe kumatulutsidwa ndi nyali yakumbuyo ngati chipata, kenako ndikuwunikira zosefera zamitundu yosiyanasiyana. mitundu kuti apange chithunzi.

Kuwala kwa LED kumbuyo

Chowunikira chakumbuyo cha LED ndikukonza kuti ma LED amafa m'mphepete mwa chinsalu cha LCD, kenako ndikufananiza mbale yowunikira, kuti gawo la LED backlight likatulutsa kuwala, kuwala kochokera m'mphepete mwa chinsalu kumafalikira pakatikati pa chinsalu kudzera pa mbale yowunikira., Kuti chiwerengero chonse cha backlight, kulola LCD chophimba kusonyeza zithunzi.

Kukula kwa Edge-lit LED backlight

Ndi chitukuko chosalekeza chaukadaulo, kuwala kwapambali kwa LED kudzayamba kuchokera ku LED imodzi kumtunda ndi kumunsi mpaka ku LED yomaliza ya mbali imodzi.Kawirikawiri, TV imodzi yowunikira kumbuyo kwa LED kumbali zonse za 32 "zomwe zingawoneke pamsika zimagwiritsa ntchito ma LED pafupifupi 120 mpaka 150. Ngati kuwala kwa TV kumasinthidwa kukhala LED imodzi, chiwerengero cha ma LED chikhoza kuchepetsedwa kukhala 80-100 ( zomwe pamapeto pake zimatha kuchepetsedwa Chiwerengero cha ma LED chimadalira ukadaulo wamtundu) Ngati ukadaulo ukugwirizana, m'tsogolomu, LED imodzi idzatembenuzidwa kuchokera kumbali yayitali (mmwamba kapena pansi) kupita kufupi (kumanzere kapena kumanja). Kusintha kwamtunduwu kudzagwiritsa ntchito Nambala yochepera ya LED ya tinthu tating'onoting'ono.

Kuwonjeza moyo

Kuchepetsa kugwiritsa ntchito ma LED sikumangokhalira kuwongolera mtengo, koma tikuwonanso zotsatira zina zabwino pama modules.Mwachitsanzo, kutentha kwa module kudzachepetsedwa chifukwa chosagwiritsa ntchito ma LED ochepa.Ngati titenga pamwambapa 32 "LCDTV mwachitsanzo, kugwiritsa ntchito pang'ono kwa chiwerengero cha ma LED kungachepetse kutentha kwa gawoli ndi pafupifupi 10% -15%. Ngakhale ma TV, kuchokera ku Nthawi zambiri, kuchepetsa kutentha kumayenera kukhala ndi zotsatira zabwino pa moyo wa zida zamagetsi.Thandizoli likuwonekera kwambiri m'madera akuluakulu a ma TV a LED, chifukwa pali ma LED ochepa omwe sagwiritsidwa ntchito kawirikawiri.

Kuwona kokulirapo

Kuphatikiza apo, kugwiritsa ntchito mayankho amakanema owoneka bwino kwambiri amathandizanso pakuwonera TV.Chifukwa mfundo yaukadaulo ya filimu yowunikira kwambiri ndikutumiza kuwala kwa polarized ku module ya backlight kuti izungulira ndikuwunikira mpaka italowa mugalasi.Gawo la backlight lomwe limagwiritsa ntchito filimu yowonjezera kuwala kumapangitsa kuwala ndi pafupifupi 30% poyerekeza ndi gawo lomwe siligwiritsa ntchito filimu ya kuwala.Popeza kuti filimu yowunikira kwambiri yowoneka bwino ndi yosiyana ndi filimu ya prism wamba, sifunika kuperekera mbali yowonera kuti iwonjezeke, motero filimu yowoneka bwino yowoneka bwino yotereyi ndiyotchuka kwambiri ndi opanga ma TV apanyumba ndi akunja.Ndi kukula kwa LCDTVs, ogula ayamba kukhala ndi zofunikira zina zowonera.Pakatikati pa balaza TV ya LCD ya 47" yokhala ndi mainchesi oposa 10,000 imayikidwa pakati pa balaza. N'zoona kuti mkulu wa banjalo akuyembekeza kuti alendo amene atakhala paliponse akhoza kusangalala ndi mawonekedwe a TV omwewo.

Kupulumutsa mphamvu ndi kupulumutsa mphamvu

Zachidziwikire, anthu amatha kuwona phindu la nyali zowunikira m'mphepete mwa LED, komwe ndikuchepetsa kugwiritsa ntchito mphamvu zonse pa TV.Wamba 32" LED backlight TV, mulingo wapano nthawi zambiri umadya pafupifupi 80W.

Ngati opanga akufuna kuwongolera miyezo yogwiritsira ntchito mphamvu pa TV, pali njira zambiri zofananira, koma kugwiritsa ntchito filimu yowunikira kwambiri yowoneka bwino kuyenera kukhala njira yosavuta komanso yolunjika komanso yothandiza yopititsira patsogolo kugwiritsa ntchito mphamvu.Ngati kuphatikizidwa ndi filimu yowunikira kwambiri yowoneka bwino, kugwiritsa ntchito mphamvu kumatha kuchepetsedwa pafupifupi 20% -30% ndikusunga mulingo womwewo wa kuwala (ntchito yomaliza imadalira ukadaulo wa mtundu uliwonse).Kuchokera pamawerengero, kugwiritsa ntchito mphamvu pa TV kumatha kusinthidwa kuchoka pa 80W kufika pafupifupi 60W kudzera mufilimu yowunikira kwambiri.Kuwongolera kwa mphamvu zamagetsi sikumangolola opanga kuti azigwirizana mwamphamvu ndi ndondomeko ya chitetezo cha chilengedwe cha dziko, komanso amathandizira ogula ndi ndalama zokhudzana ndi magetsi.

Kuchokera kusanthula kwaukadaulo pamwambapa, tikuwona kuti kapangidwe ka nyali zowunikira m'mphepete ndizopindulitsa kwambiri kwa opanga ndi ogula.Posachedwapa, ma LED okhala ndi mbali imodzi ayenera kukhala malo omaliza a nyali zakumbuyo za LED.

Kugwiritsa ntchito zochitika:
● Galimoto: Chizindikiro chakumbuyo kwa mabatani a DVD pa bolodi ndi masinthidwe
● Zida zoyankhulirana: foni yam'manja, telefoni, makiyi a makina a fax backlight
● Zikwangwani zamkati
● Kachipangizo ka m’manja: Chizindikiro
● Foni yam'manja: Chizindikiro cha backlight cha batani, tochi
● LCM yaying'ono ndi yapakatikati: kuwala kwambuyo
● PDA: Chizindikiro cha backlight key