LED Lit Zaub: Nkag siab Backlight vs. Direct Light
Thaum mus yuav khoom tshiab, TV, lossis kos npe digital, koj feem ntau pom lo lus "LED Display," tab sis nws txhais tau li cas? Cov neeg feem coob tsis paub tias "LED teeb pom kev" feem ntau yog hais txog lub vijtsam LCD uas siv LEDs (Lub Teeb Emitting Diodes) ua lub teeb ci. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb rau kev txiav txim siab kev yuav khoom hais txog qhov ci, qhov sib txawv, thiab kev siv hluav taws xob.
Dab tsi yog LED Lit Display?
Lub luag haujlwm ntawm Backlighting
Nyob rau hauv ib lub LCD (Liquid Crystal Display) vaj huam sib luag, cov kua siv lead ua kua tsis tsim lub teeb rau lawv tus kheej; lawv ua raws li cov shutters uas cia lub teeb hla mus. Lub teeb ci LED siv ib qho array ntawm LEDs tso rau tom qab lossis ib ncig ntawm cov kua siv lead ua kua los muab qhov tsim nyog illumination. Qhov no yog qhov sib piv rau cov laus CCFL (Cold Cathode Fluorescent Teeb) backlighting technology.
Ntug-Lit vs. Direct-Lit
Muaj ob lub ntsiab configuration rau yuav ua li cas lub teeb pom kev zoo LED teeb. Thawj yogNtug -Lit, qhov twg LEDs tau muab tso rau ntawm cov npoo ntawm lub vijtsam thiab lub teeb qhia vaj huam sib luag nthuav tawm lub teeb hla tag nrho saum npoo. Qhov thib ob yogDirect -Lit(lossis tag nrho -array), qhov twg LEDs muab tso ncaj qha tom qab lub LCD vaj huam sib luag, tso cai rau kom meej meej hauv zos dimming.
Qhov "LED vs. LCD" Tsis meej pem
Kev lag luam feem ntau siv cov lus "LED TV" thiab "LCD TV" sib hloov, uas ua rau cov neeg siv khoom tsis meej pem. Kom meej meej, tag nrho cov ntxaij vab tshaus LED yog cov ntxaij vab tshaus LCD; lo lus "LED" tsuas yog txhais tau tiashom backlightingsiv. Qhov kev sib txawv no yog qhov tseem ceeb vim tias nws cuam tshuam rau kev ua tau zoo ntawm cov zaub.
Qhov txawv tseem ceeb: Ntug-Lit vs. Direct-Lit
Kev nkag siab txog qhov sib txawv ntawm ob qhov kev teeb tsa tseem ceeb yog qhov tseem ceeb. Nov yog qhov sib piv:
| Feature | Ntug -Lit LED | Direct -Lit LED (Tag nrho Array) |
|---|---|---|
| Lub teeb Source | LEDs nyob rau sab nraud. | LEDs nyob ncaj qha tom qab lub vaj huam sib luag. |
| Thickness | Feem ntau thinner thiab sib dua. | Feem ntau thicker thiab hnyav dua. |
| Qhov sib piv piv | Zoo, tab sis txwv hauv zos dimming muaj peev xwm. | Zoo heev, nrog meej hauv zos dimming zones. |
| Kev tsis sib xws | Tej zaum yuav raug kev txom nyem los ntawm ntug "lub teeb los ntshav" los yog hotspots. | Feem ntau muab ntau yam ci ci. |
| Nqi | Feem ntau tus nqi ntau dua - zoo. | Feem ntau kim dua vim kev tsim qauv. |
Nkag siab txog "Lit LED Screen" Zoo
Local Dimming thiab Contrast
Lub peev xwm ntawm lub teeb coj lub vijtsam los tso saib cov xim dub tiag tiag thiab cov xim dawb zoo nkauj yog txiav txim siab loj los ntawm nws lub peev xwm dimming hauv zos. Direct-Lit displays feem ntau nyiam vim lawv tuaj yeem tua ib qho chaw ntawm LEDs tom qab qhov tsaus ntuj ntawm daim duab. Ntug-lit cov ntxaij vab tshaus tsis tuaj yeem ua tiav qhov kev txiav txim siab no, feem ntau ua rau muaj qhov ci me ntsis nyob ib puag ncig cov khoom ci ntawm qhov tsaus ntuj.
Zog Efficiency
LED backlighting feem ntau muaj zog ntau dua -ntau dua li qub CCFL thev naus laus zis. Txawm li cas los xij, ntawm cov hom LED, ntug-lit cov lus qhia feem ntau siv lub zog tsawg dua li cov duab ncaj qha -lit vim lawv siv LEDs tsawg dua. Txawm li cas los xij, qhov no los ntawm tus nqi ntawm cov duab zoo kawg nkaus.
Lifespan thiab Degradation
LEDs feem ntau muaj kev ua haujlwm ntev. Txawm li cas los xij, dhau sijhawm, qhov ci ntawm LEDs yuav txo qis. Hauv ib qho ntug-lit zaub, yog tias LEDs tsis ua haujlwm, lub vijtsam yuav dhau los ua dimmer ntawm ib sab. Hauv qhov ncaj qha -lit zaub, qhov tsis ua haujlwm hauv ib cheeb tsam yuav ua rau muaj qhov tsaus ntuj lossis thaj tsam ntawm qhov screen.
Qhov twg zoo dua rau koj?
Rau Kev Siv thiab Nyiaj Txiag
Yog tias koj tab tom nrhiav ib qho screen rau kev siv hauv chaw ua haujlwm, kos npe yooj yim, lossis saib cov xov xwm thiab kev ua kis las, ib qho ntug -lit LED lit zaub feem ntau txaus thiab sawv cev rau tus nqi zoo. Qhov sib txawv ntawm qhov sib txawv tsis tshua pom muaj nyob hauv cov chav ci ntsa iab lossis thaum pom qhov zoo li qub, cov ntawv nyeem - cov ntsiab lus hnyav.
Rau Cinematic Saib thiab Kev Tsim Qauv
Rau kev tsim cov ntsiab lus kev tshaj lij, siab -kev ua si kawg, lossis kev saib yeeb yaj kiab cinematic, ncaj qha -lit LED teeb pom nrog puv -array hauv zos dimming muaj kev ua tau zoo dua. Kev txhim kho qhov sib piv thiab qhov sib sib zog nqus dub muab qhov kev paub zoo thiab pom tseeb dua.
Qhov tseem ceeb ntawm qhov chaw
Xav txog qhov twg cov zaub yuav muab tso rau. Yog tias nws nyob hauv qhov siab -ambient- lub teeb ib puag ncig zoo li lub khw muag khoom, lub teeb pom kev zoo ntawm lub teeb pom kev tsawg dua qhov ci ntsa iab tag nrho. Txawm li cas los xij, yog tias nws nyob hauv qhov tsaus ntuj, tswj hwm ib puag ncig zoo li lub tsev ua yeeb yam, qhov sib txawv ntawm qhov sib txawv yuav tshwm sim.
Cov lus xaus thiab cov lus pom zoo
Nkag siab tias LED teeb pom kev yog qhov tseem ceeb ntawm LCD npo nrog LED backlighting yog thawj kauj ruam los txiav txim siab zoo. Kev sib cav sib ceg ntawm ntug-lit thiab ncaj qha- lit technologies boils mus rau kev lag luam- tawm ntawm daim duab zoo thiab tus nqi. Rau qhov tseem ceeb saib daim ntawv thov, kev nqis peev hauv qhov ncaj qha -lit lit LED screen feem ntau yog qhov tseeb. Txawm li cas los xij, rau ntau daim ntawv thov kev lag luam thiab kev lag luam, ntug -lit vaj huam sib luag muab kev ua tau zoo txaus ntawm tus nqi qis.
Cov lus nug nquag nug (FAQ)
1. Qhov "lit LED screen" txhais tau li cas?
Nws yog hais txog lub vijtsam LCD uas siv Lub Teeb Emitting Diodes (LEDs) los teeb lub vaj huam sib luag ua kua, uas tsis yog CCFL (fluorescent) thev naus laus zis.
2. Dab tsi yog qhov txawv ntawm LED thiab LCD?
Ib qho LCD yog hom vaj huam sib luag, thiab "LED" yog hais txog lub teeb pom kev zoo siv los teeb lub vaj huam sib luag. Tag nrho cov lus qhia LED yog LCD, tab sis tsis yog txhua lub LCD qhia siv LED backlight.
3. Puas yog ntug -lit LED zaub tsis zoo?
Tsis yog, nws tsis yog "phem." Nws yog ib qho zoo, raug nqi - zoo rau ntau daim ntawv thov. Nws tsuas yog tsis zoo li ncaj qha -lit thaum nws los txog rau kev ua tiav cov xim dub thiab qhov sib txawv siab.
4. Qhov twg zoo dua, ntug-lit lossis ncaj qha-lit?
Direct-lit (tag nrho array) feem ntau muab cov duab zoo dua qub, tshwj xeeb tshaj yog nyob rau hauv qhov tsaus ntuj, vim qhov zoo tshaj hauv zos dimming. Txawm li cas los xij, nws feem ntau kim dua.
