Kana kumucheto-kuvhenekera kwe LED backlights kunoshandiswa muLCDs dzepakati uye dzakakura, uremu uye mari yebhoti yemwenje yechiedza ichawedzera nekuwedzera kwehukuru, uye kupenya uye kufanana kwechiedza chekubudisa chiedza hazvina kunaka.Iyo mwenje pani haigone kuona iyo yedunhu simba rekutonga kweLCD TV, asi inogona kungoona yakapusa imwe-dimensional dimming, nepo yakananga-lit LED backlight inoita zvirinani uye inogona kuona dunhu rine simba rekutonga kweLCD TV.Iyo yakananga backlight process iri nyore uye haidi chiedza chekutungamira ndiro.Iyo mwenje sosi (LED chip array) uye PCB inoiswa pazasi pebacklight.Mushure mekunge mwenje waburitswa kubva ku LED, inopfuura nepainoratidzira pazasi, yobva yapfuura nemu diffuser pamusoro pepamusoro kuti iwedzere kupenya.Iyo firimu inobudiswa zvakaenzana.Ukobvu hwebacklight hunonyanya kutsanangurwa nekukwirira kwegomba pakati peinoratidzira firimu uye diffuser.Muchidzidzo, pachinzvimbo chekusangana nezvinodiwa zvekuisa uye kupenya kwakajeka, kukura kwegomba rakareba, zviri nani kufanana kwechiedza chinoburitswa kubva kune diffuser.