LED backlight yog hais txog kev siv LEDs (lub teeb emitting diodes) raws li lub teeb pom kev ntawm cov kua siv lead ua kua, thaum LED backlight zaub tsuas yog lub teeb pom kev ntawm cov kua siv lead ua kua los ntawm cov tsoos CCFL txias lub teeb raj (zoo ib yam li cov teeb fluorescent. ) rau LED (lub teeb emitting diode).Lub hauv paus ntsiab lus ntawm cov kua siv lead ua kua tuaj yeem nkag siab yooj yim raws li qhov tseeb tias qhov hluav taws xob sab nraud siv los cuam tshuam cov kua siv lead ua kua molecules yuav thaiv qhov pom ntawm lub teeb tawm los ntawm lub teeb pom kev zoo li lub rooj vag, thiab tom qab ntawd teeb lub teeb ntawm cov xim lim ntawm qhov sib txawv. xim los ua ib daim duab.

Edge-lit LED backlight

Lub ntug-lit LED backlight yog npaj cov LED tuag nyob rau hauv periphery ntawm lub LCD npo, thiab ces phim lub teeb qhia phaj, thiaj li hais tias thaum lub LED backlight module emits lub teeb, lub teeb tawm ntawm ntug ntawm lub screen yog xa mus rau qhov chaw nruab nrab ntawm qhov screen los ntawm lub teeb qhia phaj., Yog li ntawd tag nrho cov nqi ntawm backlight, cia lub LCD npo tso saib duab.

Txoj kev loj hlob ntawm Edge-lit LED backlight

Nrog rau kev txhim kho txuas ntxiv ntawm thev naus laus zis, sab-sab LED backlight yuav tsim los ntawm ib qho LED nyob rau sab sauv thiab sab qis mus rau qhov kawg nkaus ib sab ib leeg LED.Feem ntau, ib qho LED backlit TV ntawm ob sab ntawm 32" uas tuaj yeem pom hauv khw siv li ntawm 120 txog 150 LEDs. Yog tias lub teeb pom kev hauv TV hloov mus rau ib qho LED, cov LEDs tuaj yeem raug txo mus rau 80-100 ( uas nws thiaj li yuav txo tau Tus naj npawb ntawm LEDs nyob ntawm lub hom technology). Yog hais tias cov cuab yeej yog matched, nyob rau hauv lub neej yav tom ntej, ib tug tib LED yuav tig los ntawm sab ntev (nce los yog down) mus rau sab luv (sab laug los yog sab xis). ). Qhov kev hloov pauv no yuav siv tsawg dua LED Number ntawm cov khoom.

Lub neej txuas ntxiv

Kev txo qis kev siv LEDs tsis yog tsuas yog muaj txiaj ntsig zoo rau kev tswj hwm tus nqi, tab sis peb kuj pom lwm qhov txiaj ntsig zoo ntawm cov qauv.Piv txwv li, qhov ntsuas kub ntawm qhov module yuav raug txo vim yog siv cov LEDs tsawg dua.Yog tias peb coj cov 32 "LCDTV saum toj no ua piv txwv, kev siv tsawg dua ntawm cov LEDs tuaj yeem txo qhov ntsuas kub ntawm li 10%-15%. Txawm tias TVs, los ntawm Feem ntau hais lus, qhov kub thiab txias yuav tsum muaj txiaj ntsig zoo rau lub neej ntawm cov khoom siv hluav taws xob, qhov kev pab no pom tseeb dua hauv cheeb tsam loj dua LED backlight TVs, vim tias muaj tsawg dua LEDs uas tsis tshua siv.

Kev pom dav dua

Tsis tas li ntawd, kev siv cov kev ua haujlwm siab brightness li kev daws teeb meem zaj duab xis kuj ua lub luag haujlwm zoo hauv TV saib lub kaum ntse ntse.Vim hais tias lub hauv paus ntsiab lus ntawm high-efficiency brightness li zaj duab xis yog xa mus rau lub polarized lub teeb mus rau lub backlight module kom circulate thiab xav txog kom txog thaum nws nkag mus rau hauv lub iav.Lub backlight module uas siv cov yeeb yaj kiab ua kom pom kev ci ntsa iab txhim kho qhov ci ntsa iab li ntawm 30% piv nrog cov module uas tsis siv cov yeeb yaj kiab kho qhov muag.Txij li thaum cov yeeb yaj kiab ua tau zoo tshaj qhov ci ntsa iab yog qhov txawv ntawm cov yeeb yaj kiab prism, nws tsis tas yuav txi lub kaum sab xis kom pom qhov ci, yog li cov yeeb yaj kiab zoo li no tau nrov heev nrog cov tuam txhab TV hauv tsev thiab txawv teb chaws.Nrog rau thaj tsam ntawm LCDTVs nce ntxiv, cov neeg siv khoom tau pib muaj qee yam kev xav tau rau kev saib cov ces kaum.Lub 47 "LCD TV nrog ntau dua 10,000 nti tau muab tso rau hauv nruab nrab ntawm chav nyob, tau kawg, lub taub hau ntawm tsev neeg cia siab tias cov qhua zaum ntawm txhua lub kaum sab xis tuaj yeem txaus siab rau qhov zoo ntawm lub TV screen.

Kev txuag hluav taws xob thiab txuag hluav taws xob

Tau kawg, cov pej xeem tuaj yeem paub ncaj qha txog cov txiaj ntsig ntawm ntug-lit LED backlights, uas yog qhov txo qis ntawm tag nrho lub zog siv ntawm TV.Ordinary 32 "LED backlight TV, qib tam sim no feem ntau siv txog 80W. Qhov no yog sib npaug rau qib peb hauv cov qauv kev siv hluav taws xob hauv teb chaws tshiab.

Yog tias cov tuam txhab xav txhim kho cov qauv kev siv hluav taws xob hauv TV, muaj ntau cov kev daws teeb meem sib xws, tab sis kev siv cov yeeb yaj kiab ua kom pom kev ua tau zoo yuav tsum yog qhov yooj yim tshaj plaws thiab ncaj qha thiab siv tau los txhim kho kev siv hluav taws xob.Yog tias ua ke nrog cov yeeb yaj kiab ua kom pom kev ua tau zoo, kev siv lub zog tuaj yeem raug txo los ntawm 20% -30% thaum tuav tib theem ntawm kev ci ntsa iab (qhov kev ua tau zoo kawg yog nyob ntawm kev siv tshuab ntawm txhua hom).Los ntawm kev suav lej, kev siv lub zog ntawm lub TV tuaj yeem txhim kho los ntawm 80W txog 60W los ntawm kev ua haujlwm siab ua haujlwm ci ntsa iab.Kev txhim kho ntawm kev siv hluav taws xob tsis yog tsuas yog tso cai rau cov tuam txhab lag luam kom koom tes nrog lub teb chaws txoj cai tiv thaiv ib puag ncig, tab sis kuj pab cov neeg siv khoom nrog cov nqi hluav taws xob cuam tshuam.

Los ntawm cov kev soj ntsuam saum toj no, peb pom tias ntug-lit backlight tsim muaj txiaj ntsig zoo rau cov tuam ntxhab thiab cov neeg siv khoom.Nyob rau hauv lub neej yav tom ntej, ntug-lit ib leeg-sab ib leeg LEDs yuav tsum yog qhov kawg qhov chaw ntawm LED backlights.

Daim ntawv thov xwm txheej:
● Tsheb: Backlight qhia ntawm on-board DVD nyees khawm thiab keyboards
● Cov khoom siv sib txuas lus: xov tooj ntawm tes, xov tooj, fax tshuab yuam sij backlight
● Sab hauv kos npe
● Handheld device: Cov cim qhia
● Txawb xov tooj: khawm backlight taw qhia, teeb nyem
● Me me thiab nruab nrab LCM: backlight
● PDA: Qhov taw qhia tseem ceeb backlight