LED backlight yog dab tsi?

Backlight yog ib qho khoom siv hluav taws xob uas tsim los ntawm lub teeb ci + lub teeb qhia phaj, uas yog siv los muab lub teeb ci rau LCD. Cov kua siv lead ua kua hauv lub vaj huam sib luag LCD nws tus kheej tsis tuaj yeem tawm lub teeb. Qhov zoo thiab qhov tsis zoo ntawm cov electrodes yog offset, thiab LED backlight illuminates cov kua siv lead ua kua molecules nyob rau hauv cov kua siv lead ua vaj huam sib luag thiab siv cov polarizers lim cov kua siv lead ua kua molecules nyob rau hauv ntau lub xeev kom refract lub teeb, kom nws muaj peev xwm tso saib dluab thiab ntawv nyeem.
Hauv kev siv, LED backlight (nrog nws tus kheej lub teeb ci) thiab lub teeb qhia phaj (lub teeb ci nyob ntawm lwm yam khoom) feem ntau yog siv. Cov khoom zoo li no hu ua backlights.