Feem ntau yog hais txog lub teeb ci backlight qhov chaw siv rau LCD module. zhi lub teeb dhau los ntawm diffusion txheej nrog PET raws li cov khoom siv hauv paus dao, thiab yuav dhau los ntawm qhov nruab nrab nrog qhov sib txawv refractive index, yog li ntawd lub teeb yuav undergo ntau refraction, reflection thiab scattering phenomena, thiab lub teeb yuav raug kho mus rau hauv ib tug uniform nto. Lub teeb qhov chaw kom ua tiav cov nyhuv optical diffusion. Raws li kev faib tawm ntawm LCD saib, muaj ob hom ntawm sab projection hom thiab ncaj qha hom. Ntawm lawv, cov khoom siv diffusion siv rau sab projection hom hu ua XLK100 diffusion film (los yog diffusion sheet).
Nyob rau hauv qhov ncaj-lit backlight qhov chaw, ob lub diffusion ntaub ntawv yog siv, ib tug yog ib tug diffusion zaj duab xis thiab lwm yam yog ib tug diffusion phaj. Cov cim tseem ceeb ntawm cov yeeb yaj kiab diffusion yog tag nrho lub teeb xa tawm thiab haze. Lub luag haujlwm ntawm XLK100 diffusion zaj duab xis yog muab lub teeb pom kev zoo ib yam rau cov kua siv lead ua kua.