LCD vs LED Monitors
LCD saib thiab LED saib yog cov khoom nrov niaj hnub no. Txawm hais tias nws yog lub khoos phis tawj lossis lub TV, muaj lub sijhawm uas cathode ray tube txiav txim siab zoo tshaj plaws thiab nws yog qhov pom pom CRT saib txhua qhov chaw. Zaub yog ib qho tseem ceeb thaum peb tseem ntsia cov ntxaij vab tshaus rau cov xuab moos txawm saib TV lossis ua haujlwm hauv computer. Nrog rau qhov tshwm sim ntawm cov thev naus laus zis tshiab xws li LCD, LED, thiab Plasma, tib neeg tsis meej pem txog qhov sib txawv ntawm LCD thiab LED saib seb qhov twg zoo dua rau lawv. Kab lus no yuav qhia txog cov yam ntxwv ntawm ob lub thev naus laus zis kom yooj yim rau tus neeg xaiv ntawm ob.
NYIAJ LCD
LCD yog lub npe luv ntawm Liquid Crystal zaub. Muaj ob txheej iav hauv cov thev naus laus zis no uas tau koom ua ke nrog cov kua siv lead ua kua hauv nruab nrab. Cov crystals no pab dhau los yog thaiv lub teeb. Txawm li cas los xij, cov khoom siv lead ua tsis tsim lub teeb thiab nws los ntawm cov teeb fluorescent (CCFL) nyob tom qab ntawm qhov screen.
LED
Cov thev naus laus zis hauv LED TV yog qhov zoo ib yam nrog qhov sib txawv yog qhov chaw ntawm lub teeb nyob tom qab ntawm lub vijtsam. Whereas nws yog CCFL nyob rau hauv rooj plaub ntawm LCD, muaj lub teeb emitting Diodes (LED's) nyob rau hauv rooj plaub ntawm LED TV's.
Lub teeb pom kev nyob tom qab ntawm lub vijtsam txiav txim siab qhov zoo ntawm cov zaub yog li koj yuav tsum nug txog nws ua ntej yuav koj lub TV tom ntej lossis saib. Muaj 3 yam tseem ceeb ntawm kev teeb pom kev zoo hu ua RGB dynamic LED, Ntug LED, thiab puv Array LED.
Qhov txawv ntawm LCD saib thiab LED saib
• LED's feem ntau yuav muaj qhov sib piv zoo dua li LCD's. Qhov no yog ib qho tseem ceeb rau cov kev pab cuam nrog cov duab nthuav qhia thiab kuj rau kev ua si
• LED's yog ib puag ncig tus phooj ywg vim tias tsis muaj mercury siv thaum lawv tsim khoom. Ntawm qhov tod tes, LCD TV xav tau mercury rau lawv cov khoom.
• LED's muaj zog ntau dua li LCD's, thiab feem ntau siv 30% tsawg zog dua LCD's.
• Saib LCD saib ntev tuaj yeem ua rau muaj kev ntxhov siab ntawm koj ob lub qhov muag. LED's ntawm qhov tod tes, yog softer ntawm ob lub qhov muag.
• LED TV's yog tus nqi qis dua li LCD. Feem ntau, muaj 20% tus nqi sib txawv ntawm ob.
• LED TV muaj lub neej ntev (100000 teev) dua li LCD TV (60000 teev).
