Dab tsi yog kev faib tawm ntawm LED backlights?
Ntug-lit backlights tso cov kab lossis taw qhia lub teeb ci ntawm sab ntawm lub teeb qhia phaj, thiab tuaj yeem ua rau hauv ob qho - sab lossis triple - sab kev teeb tsa nyob ntawm qhov xav tau tiag tiag. Thaum qhov kev tsim no tso cai rau cov qauv nyias nyias, nws qhov kev siv lub teeb pom kev zoo yog qis dua, txo qis raws li cov thickness txo.
Hauv qab -lit backlights yog qhov chaw tiaj tus. Cov no tuaj yeem yog qhov sib txuas thiab sib xws ntawm qhov chaw teeb pom kev zoo, xws li EL lossis lub teeb vaj huam sib luag fluorescent, lossis qhov chaw teeb pom kev zoo, xws li LED dot matrix lossis teeb incandescent. Hauv qab -lit backlights muaj qhov zoo xws li lub teeb ci siab thiab zoo sib xws, tab sis lawv qhov tsis zoo suav nrog cov tuab ntau dua thiab tsim hluav taws xob tseem ceeb.
Qhov zoo ntawm LED Backlights
LED backlights muaj zog ntau dua -ntau dua li CCFL backlights, ua tiav kev txuag hluav taws xob ntau dua 40% rau tib qhov kev qhia tshwj xeeb, thiab ntau dua 60% rau siab - cov khoom zoo. Nrog rau kev loj hlob ntawm LED backlight technology, yav tom ntej cov lus qhia yuav muab kev siv zog zoo dua.
LED backlights tsis muaj teeb meem mercury, pab tiv thaiv ib puag ncig. Nrog rau kev tsim khoom thoob ntiaj teb txhua xyoo ntawm kwv yees li 220 lab cov lus qhia, kev siv dav dav ntawm LED backlights yuav muaj kev cuam tshuam zoo rau lub ntiaj teb ib puag ncig.
LED backlight modules emit dawb huv lub teeb, uas ua rau ib tug dav xim gamut thiab xim zoo dua rau cov zaub.
LED backlights muaj lub neej ntev dua thiab lub sijhawm ci ntsa iab ntev dua. Nrog kev nce qib thev naus laus zis, tseem muaj chaw rau kev txhim kho hauv LED backlight lifespan.
LED backlight systems yog nyias thiab sib zog dua li ib txwm CCFLs, ua raws li cov neeg siv khoom niaj hnub nrhiav kev tsim qauv. "Thinness" yog qhov muag tseem ceeb rau ntau lub LED-backlit zaub.
Disadvantages ntawm LED Backlights
LED backlights feem ntau muaj qis dua, feem ntau qis dua 250 cd / m², lossis qis dua. Qhov ci ntsa iab tsis txaus cuam tshuam rau cov duab zoo thiab kev siv tau, tshwj xeeb tshaj yog nyob rau hauv siab - daim ntawv thov ci.
Lub uniformity ntawm LED backlights yog qhov nyuaj rau tswj; Txhua LED yuav tsum muaj cov yam ntxwv zoo sib xws. LEDs nrog lub neej tsis sib haum xeeb ua rau muaj kev cuam tshuam lub teeb sib xws. Feem ntau cov khoom ntawm kev ua lag luam pom tsuas yog qhov nruab nrab uniformity.
Hauv qab -lit LED backlights siv ntau LEDs, ua rau muaj zog siv zog thiab kub. Qhov no yuav tsum tau ntxiv cov tshuab cua txias thiab cov sensors los daws cov cua sov, ua rau cov thickness ntau dua.
