LEDs (Lub Teeb Emitting Diodes) yog cov khoom siv hluav taws xob semiconductor uas ua ke nrog P-hom semiconductor (qhov loj dua qhov concentration) nrog N-hom semiconductor (loj electron concentration). Kev siv qhov hluav taws xob txaus rau pem hauv ntej yuav ua rau cov hluav taws xob thiab qhov sib txuas ntawm PN kev sib tshuam, tso tawm lub zog hauv daim ntawv ntawm lub teeb.
Piv nrog rau cov teeb pom kev zoo uas thawj zaug hloov hluav taws xob rau hauv tshav kub, thiab tom qab ntawd mus rau hauv lub teeb, LEDs (Lub Teeb Emitting Diodes) hloov hluav taws xob hluav taws xob ncaj qha mus rau hauv lub teeb, xa cov teeb pom kev zoo nrog hluav taws xob tsawg.
Lub teeb Dawb tsim li cas?
Muaj ntau txoj hauv kev los tsim lub teeb dawb siv LEDs. Hauv qab no yog 2 txoj hauv kev emission.
Blue LED + Yellow Phosphor
Kev sib xyaw xim xiav LED nrog daj phosphor, uas yog xim ntxiv, yuav ua rau lub teeb dawb. Txoj kev no yooj yim dua li lwm cov kev daws teeb meem thiab muab kev ua haujlwm siab, ua rau nws yog qhov kev xaiv nrov tshaj plaws ntawm kev ua lag luam.
