LED backlight yog ib qho ua ke ntawm ntau lub teeb ci LED. Cov teeb ci me me no hu ua LED's. Piv nrog rau lwm lub teeb pom kev, qhov tsawg tshaj plaws lub hwj huam siv tau yog ib qho teeb taws tib lub teeb.
Qhov xim ntawm LED teeb yog qhov ntau heev. Ntau hom xim yog liab, daj, thiab xiav. Dawb yog xim tshwj xeeb. Cov xim ntawm LED teeb yog ntau yam, tab sis yog hais tias muab faib los ntawm ci ntsa iab, nws yuav roughly muab faib ua ob hom ntawm lub teeb thiab tsawg lub teeb.
Cov xim dawb ntawm LED teeb yog xim sib xyaw xim, tsis muaj qhov txiaj ntsim cov nqi uas yuav qhia tau, yog li peb siv nws los sawv cev rau ib qho ntawm daim duab chromaticity. Peb txhais nws ua ob hom, ib qho yog "txias dawb" thiab lwm qhov yog "sov dawb."
Seb nws yog xim dawb los yog sov so, qhov teeb meem ntawm cov xim txawv yog ib txwm muaj. Ntawm lawv, dawb thiab xiav yog cov cuab kev pom tseeb, tshwj xeeb tshaj yog dawb, thiab kom deb li deb lawv tsis tau tswj nws zoo dua.
