Taw qhia rau Kev faib tawm ntawm LED Backlight

Feem ntau hais lus, raws li hom teeb pom kev zoo ntawm LED backlight, muaj peb hom, xws li E, CCF thiab LED. Nyob rau tib lub sijhawm, nws kuj tuaj yeem muab faib raws li qhov chaw faib khoom ntawm lub teeb ci, muaj hom teeb pom kev sab thiab hauv qab backlight hom. Hauv qab no yog cov lus qhia txog kev faib tawm ntawm LED backlights.

Kev faib tawm ntawm LED backlight qhov chaw ib qho: ntug teeb hom.

Lub teeb nraub qaum yog lub teeb nraub qaum uas tsim los ntawm kev teeb tsa ib kab lossis taw qhia lub teeb nyob rau sab ntawm lub teeb qhia tshwj xeeb uas tsim los ntawm lub phaj. Raws li kev xav tau ntawm kev siv tiag tiag, nws tuaj yeem ua rau ob sab lossis txawm tias hom trilateral.

1. LED backlight

LED teeb tseem hu ua lub teeb-emitting diodes, thiab lub zog noj ntawm ib lub teeb LED yog qhov tsawg tshaj plaws. LED teeb tuaj ntau xim, los ntawm xiav mus rau liab. Hauv ntau yam xim, nws tuaj yeem faib ua ob hom: lub teeb siab thiab lub teeb qis. Txij li cov xim dawb yog xim sib xyaw, tsis muaj tus nqi wavelength uas qhia tau, yog li nws tau sawv cev los ntawm nws tus nqi sib koom tes ntawm daim duab chromaticity. Peb kho nws li "Cool White" thiab "Sov Dawb". Nyob rau hauv txhua yam xim, muaj teeb meem ntawm cov xim sib txawv, tshwj xeeb tshaj yog xim dawb, thiab cov khoom siv LED tsis tuaj yeem tswj tau zoo.

2. CCFL backlight

Qhov zoo tshaj plaws ntawm cov teeb pom kev zoo no yog qhov ci ntsa iab, yog li dub thiab dawb theem tsis zoo, xiav hom tsis zoo theem thiab xim kua siv lead ua cov khoom siv nrog thaj chaw loj siv nws. Hauv txoj kev xav, nws tuaj yeem ua ntau yam xim raws li cov xim sib txawv ntawm peb lub ntsiab xim. Qhov tsis zoo yog tias lub zog siv hluav taws xob loj, nws yuav tsum tau tsav los ntawm lub tshuab hluav taws xob inverter, thiab kev ua haujlwm kub yog nqaim, uas yog nyob nruab nrab ntawm 0 thiab 60 degrees, thaum lwm qhov chaw teeb pom kev zoo xws li LED tuaj yeem ncav cuag ntawm { {2}} thiab 70 degrees.

Qhov thib ob faib ntawm LED backlight: hauv qab backlight hom.

Nws yog qhov chaw tiaj tus lub teeb ci nrog ib qho qauv. Nws tuaj yeem yog lub teeb ci txuas ntxiv thiab tsis sib xws, xws li EL lossis lub teeb fluorescent tiaj tus; Nws tuaj yeem tsim los ntawm ntau qhov chaw teeb pom kev zoo, xws li dot matrix LED lossis incandescent teeb backlight. Feem ntau siv yog LED dot matrix thiab EL backlight.

1. EL backlight. Ntawd yog, electroluminescence yog lub teeb txias txias uas emits lub teeb los ntawm lub hauv paus luminescence ntawm phosphors zoo siab los ntawm kev hloov hluav taws xob. Nws qhov txiaj ntsig loj tshaj plaws yog tias nws nyias, thiab nws tuaj yeem ua tiav qhov tuab ntawm 0.2 ~ 0.6mm. Qhov tsis zoo yog qhov ci ntsa iab qis, lub neej luv luv (feem ntau 3000 ~ 5000 teev), nws yuav tsum tau tsav los ntawm inverter, thiab yuav muaj flicker thiab suab nrov vim muaj kev cuam tshuam ntawm Circuit Court.

2. LED teeb hauv qab. Qhov zoo yog qhov ci ci zoo thiab zoo uniformity. Qhov tsis zoo yog qhov tuab yog loj (ntau dua 4.0mm), cov LEDs siv ntau, thiab qhov tshwm sim cua sov yog pom tseeb. Feem ntau, cov xim qis qis yog siv rau kev tsim, thiab cov xim ci ntsa iab yog qhov tseem ceeb tsis quav ntsej vim tus nqi siab. WA khoom yog Weizhi rov qab lub teeb qhov chaw.