Dab tsi yog A TV TV Tiag tiag
Muaj hype ntau thiab tsis meej pem lwm qhov lag luam ntawm "LED" TVs. Txawm tias muaj ntau tus neeg sawv cev rau pej xeem sib raug zoo thiab cov tub txawg txoj kev muag khoom uas yuav tsum paub zoo dua yog cov tsis to taub dab tsi yog ib lub TV TV rau lawv cov neeg tuaj lwm lub tswv yim.
Los teev cov ntaub ntawv ncaj, nws tseem ceeb heev kom nco tias LED qhov kev taw qhia yog hais txog qhov kev teeb pom kev siv hauv ntau lub TV Televisions, tsis yog daim tawv uas tsim cov duab cov ntsiab lus.
LCD chips thiab pixels tsis tsim lawv tus kheej lub teeb. Thiaj li rau lub LCD TV los tsim ib daim duab pom ntawm lub vijtsam TV, LCD's pixels yuav tsum yog "backlit". Yog xav paub ntxiv txog qhov kev lag luam uas yuav tsum muaj rau LCD Televisions, xa kuv cov ntawv: Demystifying CRT, Plasma, LCD, thiab DLP TV Technologies .
Ntawm lawv cov tub ntxhais, LED TVs tseem yog LCD TVs. Qhov txawv ntawm ob, raws li tau hais los saum no, yog qhov kev siv qhov nrig siv. Feem ntau cov TVs LCD siv cov teeb ci ntsa iav dua li qhov pom ntawm Fluorescent zoo li qhov siv rau LED hauv TV advertising hype.
Yuav tsum yog qhov tseeb, LED TVs yuav tsum raug sau thiab tshaj tawm raws li LCD / LED lossis LED / LCD TVs.
Yuav ua li cas LED Technology yog siv hauv LCD TVs
Cov tam sim no yog ob txoj hauv kev uas LED backlighting yog siv nyob rau hauv LCD flat vaj huam sib luag televisions .
LED tshav teeb pom kev zoo
Ib hom LED backlighting raug xa mus rau Edge Teeb .
Nyob rau hauv hom no, series LEDs raug tso rau sab nraud ntawm cov vaj huam sib luag hauv LCD. Tom qab ntawd, lub teeb yog tawm hauv qhov screen uas siv cov "diffusers light" los yog "light guides". Qhov zoo ntawm qhov txujci no yog qhov LED / LCD TV ua rau nyias nyias. Ntawm qhov tod tes, qhov tsis zoo ntawm Edge teeb pom kev zoo yog tias cov theem dub tsis yog sib sib zog nqus thiab ntug cheeb tsam ntawm qhov screen muaj qhov xav kom muaj zog dua qhov chaw ntawm qhov screen.
Tsis tas li ntawd, qee zaum koj kuj tseem pom tias qhov twg yog hu ua "spotlighting" nyob rau ntawm qhov chaw ntawm lub vijtsam, thiab / lossis "white blotches" tawg nyob thoob plaws lub vijtsev. Thaum pom cov duab tshav ntuj lossis ntu sab hauv, cov teebmeem no tsis tshua pom tau - Txawm li cas los xij, lawv pom tau tias yuav tsum sib txawv, thaum tsaus ntuj lossis tsaus ntuj pom hauv TV program lossis movie.
LED mus teeb pom kev zoo
Lwm yam ntawm LED backlighting yog xa mus ncaj qha los yog Tagnrho-Array (tseem raug xa mus rau qee lub sijhawm LED) .
Nyob rau hauv hom no, ob peb kab ntawm LEDs muab tso rau tom qab tag nrho ntawm qhov screen. Qhov zoo tshaj plaws ntawm lub davhlau tag nrho yog qhov uas tsis zoo li ntug teeb pom kev zoo, Kev Tso Npe Mus lossis Cov Ntawv Teev Npe Tag Nrho, muab ntau dua, qhov tsoos tsho, dub theem thoob plaws lub vijtsam npo.
Lwm qhov zoo dua yog tias cov khoom poob no yuav ntiav "lub zos dimming" (yog siv los ntawm cov khw). Tag Nrho Ntaiv Backlighting nrog lub zos Dimming tseem raug xa mus rau FALD .
Yog tias LED / LCD TV sau npe ua Direct Lit, qhov no txhais tau hais tias nws tsis suav nrog lub zos dimming, tshwj tsis yog muaj kev piav qhia ntxiv. Yog hais tias ib lub TV LCD / LCD TV sib txuas nrog lub zos dimming, nws feem ntau hu ua "Back Arrit Backlit Set" los yog piav raws li Cov Ntawv Teev Npe Dilm.
Yog hais tias lub zos dimming yog siv, qhov no txhais tau hais tias pawg LEDs tuaj yeem tso rau thiab tawm ntawm nws tus kheej ntawm qee thaj chaw ntawm qhov screen (qee zaum xa mus rau thaj chaw), yog li muab kev tswj ntau tshaj qhov ci thiab qhov tsaus ntuj rau txhua qhov chaw, nyob ntawm qhov chaw cov khoom muab tso tawm.
Lwm cov kev hloov ntawm kev kos duab nrig nrog lub zos dimming yog Sony's Blacklight Master Drive, uas nws tau pib rau ntawm ib tug xov tooj ntawm cov TV hauv 2016.
Qhov kev hloov no siv cov txheej txheem kom tiav raws li nws lub hauv paus, tiam sis tsis siv zos zom zom siv (pawg ntawm pixels), qhov teeb pom kev rau txhua lub pixel yuav tsum tau ntawm nws tus kheej tau qhib thiab tawm, uas ntxiv ntau dua qhov ci ntsa iab thiab qhov sib txawv ntawm ob qho tib si ci thiab tsaus ntais cov ntsiab lus - xws li tshem dawb los ntshav ntawm cov khoom ci rau cov keeb kwm dub.
Hauv zos Dimming hauv LED Edge-Lit LCD TVs
Txawm li cas los xij, nws kuj yuav tsum tau taw qhia tias qee qhov ntug-lit LED / LCD TV kuj hais txog "feature dimming". Samsung siv lub sij hawm micro-dimming, Sony hais txog lawv cov version ntawm no kev variation ua Dynamic LED (ntawm TVs uas tsis muaj dub tsav tsav), Thaum ntse hais txog lawv version raws li Aquos Dimming. Raws li qhov chaw tsim khoom siv lo lus siv kuj txawv. Txawm li cas los xij, kev siv tshuab ua haujlwm muaj qhov sib txawv ntawm lub teeb nrig uas siv lub teeb diffusers thiab lub teeb qhia li no yog qhov tsawg tshaj qhov ncaj tshaj hauv zos dimming txoj kev siv nyob rau hauv Cov Qauv Tshaj lossis Cov Ncaj Ncees Teeb / LCD.
Yog tias koj xaiv qhov purchase ntawm LED / LCD TV, nrhiav seb hom twg thiab cov qauv siv tam sim no siv qhov ntug los yog Cov Hom Pej Xeem thiab saib txhua yam thaum koj mus kav khw saib seb hom LED backlighting zoo li zoo rau koj .
LED / LCD TVs vs Standard LCD TVs
Txij li thaum LEDs yog tsim txawv dua li cov txheej txheem fluorescent backlight systems, qhov no txhais tau hais tias cov tshiab LED backlit LCD poob siab muab cov nram qab no sib txawv nrog cov qauv LCD:
- Txo cov hwj huam qis dua.
- Tsis muaj Mercury siv raws li hauv lwm lub laub LCD.
- Ntxiv xim xim saturation.
- Nyob rau hauv LED / LCD TVs siv cov qauv dub nciab txoj kev, muaj me ntsis lossis tsis muaj lub teeb nyob hauv qhov tsaus ntuj nti. Qhov no muaj txiaj ntsig zoo dua cov xim dub dua li cov tsoos los sis LED Edge-lit LCD televisions.
- LCD TVs uas siv Daim Ntawv Teev Cov Npe lossis Ncaj Ncej Ncaj Ncees yog cov thicker dua LCD TVs uas ntiav Edge-lit LED teeb ci. Hauv qab no, LED / LCD TVs uas siv Edge backlight txoj kev yuav ua tau thinner dua ob qho txuj ci LCD thiab Cov Ntawv Teev Tag Nrho LED / LCD televisions.
Lub TV tsuas yog tsuas yog siv cov TV xwb (tsis yog tsis meej pem nrog cov TVs OLED ) uas yog koj pom hauv cov chaw ua si, arenas, lwm yam xwm txheej loj thiab cov "high-res" billboards. (Saib Piv Txwv).
LED backlighting sawv cev ua ntej hauv tshuab, feem ntau yog nqa LCD TVs nyob ze rau Plasma Televisions ntawd cov theem kev ua haujlwm dub, thiab, tib lub sij hawm, ua cov teeb meem tseem ceeb LCD TV tsim tau.
LEDs thiab Quantum Dots
Lwm cov tshuab uas tau muab tso rau hauv ib qho kev nce ntawm LED / LCD TVs yog Quantum Dots. Samsung hais txog lawv cov Quantum Dot-equipped LED / LCD TVs raws li QLED TVs, uas muaj ntau yam nrog rau cov TVs OLED - Txawm li cas los, tsis txhob dag, ob lub yees tsis yog sib txawv tab sis tsis txaus.
Hauv luv, Quantum Dots yog cov txiv neej ua nanoparticles uas tau muab tso rau ntawm Edge Lit lossis Cov Ncauj Lus Tso Ncaj Ncej / Ncaj Ncej thiab Backlight thiab LCD Vaj Huam Sib Luag. Quantum Dots tsim lug txhim khu xim dlhau yaam kws lub TV / LCD TV ua tau yog tsi muaj puab. Rau cov lus qhia ntxiv txog li cas Quantum Dots raug, thiab raws li qhov ua li cas, thiab vim li cas, lawv siv nyob rau hauv LED / LCD TVs, xa kuv cov ntawv Quantum Dots - Enhancing LCD TV Performance .
LED Siv DLP Video Projectors
LED teeb pom kev zoo kuj ua nws txoj hauv kev DLP video projectors . Qhov no, LED khoom siv lub teeb qhov chaw uas tsis yog ntawm ib lub log projection teeb. Hauv DLP video projector, daim duab no yeej ua tau nyob hauv daim ntawv grayscale rau ntawm DLP nti, uas txhua lub pixel tseem yog ib daim iav. Lub teeb ci (qhov no yog qhov teeb ci LED, uas yog xim liab, ntsuab, thiab xiav) qhia txog lub teeb tawm ntawm DLP chip micromirrors thiab npaj rau qhov screen.
Siv lub teeb ci ci hauv DLP video projectors tshem tawm kev siv lub xim xim. Qhov no ua rau koj pom daim duab ntawm lub vij voog uas tsis muaj DLP cov duab zaj dab neeg (cov xim me me xim uas muaj qee zaum pom nyob hauv ib lub neeg pom thaum lub taub hau txav). Ntxiv thiab, txij li thaum LED teeb qhov chaw rau projectors yuav ua tau ib qho me me, ib tug tshiab yug ntawm compact video projectors, xa mus rau raws li ib tug LED lub teeb nyob rau hauv DLP video projectors tshem tawm ntawm kev siv ntawm ib lub xim xim. Qhov no ua rau koj pom daim duab ntawm lub vij voog uas tsis muaj DLP cov duab zaj dab neeg (cov xim me me xim uas muaj qee zaum pom nyob hauv ib lub neeg pom thaum lub taub hau txav). Tsis tas li ntawd, txij li thaum LED qhov chaw rau projectors yuav ua tau ib qho me me, ib tug tshiab yug ntawm compact video projectors, xa mus raws li Pico projectors tau nrov.
LED Siv Hauv TVs - Tam sim no thiab yav tom ntej
Txij thaum tuag ntawm TVs Plasma , LED / LCD TVs yog tam sim no lub hom phiaj ntawm cov TVs muaj rau cov neeg siv khoom. OLED TVs, uas siv technology ntau, kuj tseem muaj, tiam sis muaj tsawg tshaj tev muag (Raws li ntawm 2017, LG thiab Sony yog cov TV ua lag luam hauv TV ua lag luam hauv OLED TV), thiab lawv kim tshaj li lawv cov TV LED / LCD TV. Nrog lub ntsiab ntawm cov nta, xws li lub zos dimming thiab Quantum Dots, nws ncaj ncees hais tias yav tom ntej ntawm LED / LCD TVs yog heev ci.
Yog xav paub ntxiv txog LED tshuab siv hauv LCD TVs, kos tawm ib daim ntawv qhia los ntawm CDRinfo.