Lub backlight module yog ib qho ntawm cov khoom tseem ceeb ntawm LCD vaj huam sib luag. Lub luag haujlwm yog muab qhov ci ntsa iab txaus thiab sib npaug sib npaug ntawm lub teeb kom nws tso saib cov duab ib txwm. Nws yuav tsum yog tias lub vijtsam LCD nws tus kheej tsis tawm lub teeb.
Nrog rau kev txhim kho txuas ntxiv ntawm cov kua siv lead ua kua siv thev naus laus zis, daim ntawv thov kev lag luam ntawm cov kua siv lead ua kua, tshwj xeeb tshaj yog cov kua siv lead ua kua xim, tau nthuav dav tas li. Tsav los ntawm cov kua siv lead ua kua zaub ua lag luam, kev lag luam backlight tau nthuav tawm qhov kev nthuav dav. Lub LCD yog cov khoom siv tsis muaj teeb pom kev zoo, uas yuav tsum tau siv lub teeb rov qab kom ua tiav cov khoom ua haujlwm.
Qhov kev ua tau zoo ntawm lub teeb pom kev zoo yuav cuam tshuam ncaj qha rau cov zaub zoo ntawm LCD. Tus nqi ntawm qhov chaw teeb pom kev zoo rau 30-50 feem pua ntawm LCD module, thiab lub zog siv nyiaj rau 75 feem pua ntawm cov module. Nws tuaj yeem hais tias yog ib feem tseem ceeb ntawm LCD module. Cheebtsam. High-txhais, loj-loj LCDs xav tau high-kev ua tau zoo backlight technology los koom tes nrog nws. Yog li ntawd, raws li kev lag luam LCD siv zog los qhib qhov chaw thov tshiab, kev ua haujlwm siab ntawm kev siv hluav taws xob rov qab (xws li lub teeb ci siab, tus nqi qis, kev siv hluav taws xob tsawg) Nws kuj ua lub luag haujlwm ntawm cov yeeb yaj kiab tom qab.
