Cov thev naus laus zis niaj hnub ua rau nws muaj peev xwm los tsim cov txheej txheem uas zoo li kaum lossis kaum tsib xyoo dhau los. Qhov nrov tshaj plaws niaj hnub no yog LCD thiab LED TVs, uas muab cov duab pom tseeb thiab zoo tshaj plaws, zoo li muaj cov kab pheeb ces kaum loj. Yog li cov TVs twg zoo dua thiab ua li cas lawv thiaj sib txawv?
Qhov sib txawv ntawm LCD thiab LED
LED thev naus laus zis tau tshwm sim thawj zaug ua lag luam hauv xyoo 2009 thiab tau txais sai sai cov koob npe nrov - niaj hnub no txhua tus neeg tsim khoom loj tsim ntau cov kab ntawm LED TV. Qhov tseeb, lawv yog cov LCD zoo tib yam, tab sis nrog ib qho sib txawv - hauv LED TVs, cov tsoos fluorescent backlight tau hloov los ntawm lub teeb taws rov qab los ntawm LED ntsiab hauv daim ntawv ntawm luminous diodes.
Hloov cov ntsiab lus teeb pom kev zoo tau hloov kho tau zoo hauv TVs, tab sis cov kev hloov no tsis hloov pauv.
Cov txiaj ntsig zoo thiab ntau ntawm kev txhim kho uas tau tshwm sim tom qab hloov cov diodes yog ncaj qha ntsig txog hom LED backlighting. Muaj ob hom LED teeb pom kev zoo - yooj yim thiab pheej yig sab teeb pom kev zoo thiab kim rov teeb pom kev zoo. Sab teeb pom kev zoo siv tsuas yog LEDs dawb, thaum lub teeb pom kev tom qab siv ntsuab, xiav thiab liab.
Ntxiv rau, cov xim backlight cov ntsiab lus muab tso ncaj qha tom qab ntawm lub LCD vaj huam sib luag, uas hloov lawv raws li cov xim duab tam sim no. Qhov no tso cai rau qib siab ntawm kev sib piv thiab duab ci ci uas tsis tuaj yeem ua tiav nrog LCD TVs. Ob sab thiab sab nraub qaum teeb pom kev zoo tsim qhov tseeb thiab yav dhau los ua tsis tau muaj txiaj ntsig rau kev siv thev naus laus zis niaj hnub siv tshuab.
Dab tsi zoo dua?
Tsis zoo li TVs, TVs nrog LED thev naus laus zis txuag hluav taws xob, siv hluav taws xob ib nrab. Tsis tas li ntawd xwb, lawv muaj kev nyab xeeb ntau dua rau lawv tus tswv thiab nyab xeeb dua rau lawv tus tswv, vim tias LED diodes tsis muaj cov tshuaj mercury - tsis zoo li cov tshuaj tua hluav taws ib txwm nyob rau sab nraum zoov. Tsis tas li, LED thev naus laus zis tau ua rau nws tsim cov phiaj xwm nyias nyias, cov tuab uas tsawg dua kaum millimeters.
LED TVs feem ntau hu ua duab TV vim tias lawv nyuaj qhov txawv ntawm kev ua haujlwm tiag tiag ntawm daim duab thaum daim duab khov rau ntawm lub vijtsam.
LED TVs, hauv kev sib piv nrog LCD cov ntxaij vab tshaus, muaj qhov sib piv sib txawv ntau dua - hauv qee cov qauv niaj hnub, qhov sib piv thiab pom tseeb cov yam ntxwv yog qhov txwv tsis pub (qhov no siv rau backlit TVs xwb). LED TVs muaj ib qho tsis txaus ntseeg - tsis zoo li LCDs, lawv tus nqi tseem nyob ntawm tus nqi, tab sis cov neeg tsim khoom cog lus tias yuav ua rau lawv pheej yig dua rau cov neeg siv khoom feem ntau nyob rau yav tom ntej.
