LED Screen TV: Nws Yog Dab Tsi & Yuav Ua Li Cas Xaiv Ib Tug
Lo lus "LED screen TV" tshwm nyob rau ntawm cov npe khoom thiab cov nplooj ntawv spec nyob txhua qhov chaw, tab sis nws tsis yog ib txwm txhais tau tib yam. Yog tias koj tab tom sim nkag siab tias hom tv coj li cas koj tab tom saib tiag tiag ntawm - thiab seb nws puas haum rau koj cov kev xav tau - phau ntawv qhia no txiav los ntawm cov ntsiab lus thiab muab cov tswv yim rau kev txiav txim siab.
Qhov "LED Screen TV" txhais tau li cas?
Hauv cov neeg siv khoom siv feem ntau, LED npo TV hais txog lub TV uas siv LED (lub teeb-emitting diode - ib qho khoom siv hluav taws xob uas tsim lub teeb thaum hluav taws xob dhau los ntawm nws) backlighting qab LCD (Liquid Crystal Display) vaj huam sib luag. Cov kua siv lead ua kua hloov lub teeb los ntawm LED backlight los tsim cov duab. Lub vijtsam tsis yog, nruj me ntsis hais lus, ncaj qha - saib LED zaub - cov LEDs yog lub teeb ci, tsis yog duab - tsim pixels lawv tus kheej.
Qhov no tsim ib lub rooj sib tham naming uas yuav tsis meej pem. Thaum cov tuam txhab sau npe rau lub TV ua "duab TV LED" lossis "LED TV zaub," lawv feem ntau piav qhia txog LCD vaj huam sib luag nrog LED backlighting, tsis yog ncaj qha - saib LED zaub ntawm hom siv hauv kev lag luam video phab ntsa thiab loj - hom ntawv kos npe.
Muaj tseeb ncaj qha - saib LED TVs - qhov twg cov duab yog tsim tag nrho los ntawm LED pixels ntawm qhov screen - muaj nyob, tab sis lawv tseem tsis tshua muaj nyob hauv cov neeg siv khoom lag luam thiab feem ntau muab tso rau hauv cov khoom hwm lossis cov khoom tshwj xeeb. Rau feem ntau cov neeg yuav khoom, nkag siab txog qeb twg lawv tab tom ntsuas yog qhov pib muaj txiaj ntsig.
Hom LED TV Zaub Technology
Nyob rau hauv LED-backlit LCD qeb, muaj qhov sib txawv ntawm qhov teeb meem ntawm LED backlight li cas thiab tswj:
| Technology | Nws ua haujlwm li cas | Cov yam ntxwv tseem ceeb |
|---|---|---|
| Ntug -lit LED | LEDs positioned raws lub vaj huam sib luag ntug | Tso cai rau nyias TV profiles |
| Tag nrho -array LED | LEDs kis thoob plaws tag nrho sab nraub qaum ntawm lub vaj huam sib luag | Ntau yam teeb pom kev zoo teeb pom kev zoo |
| Tag nrho -array hauv zos dimming (FALD) | Tag nrho -array LEDs muab faib rau ntawm nws tus kheej dimmable zones | Txhim kho qhov sib piv vs. tus qauv puv -array |
| Mini -LED backlit | LEDs me me nyob rau hauv tag nrho -array configuration nrog ntau thaj tsam dimming | Finer hauv zos dimming tswj |
| OLED (rau kev siv) | Organic teeb -emitting diodes; txhua pixel emits nws lub teeb | Kev siv tshuab sib txawv; tsis LED-backlit LCD |
Hauv zos dimming (ib qho txheej txheem uas ntu ntawm lub teeb rov qab yog dim ntawm nws tus kheej los txhim kho qhov sib txawv) yog qhov sib txawv tseem ceeb hauv LED- backlit LCD qeb. Ntau thaj chaw dimming feem ntau tso cai rau kev tswj hwm ntau dua, txo cov nyhuv "halo" (pom pom lub teeb los ntshav nyob ib puag ncig cov khoom ci ntawm qhov tsaus ntuj) uas tuaj yeem tshwm sim ntawm kev siv yooj yim.
Direct-Saib LED rau TV Daim Ntawv Thov
Nyob rau hauv xyoo tas los no, ncaj qha- saib LED zaub tau nkag mus rau hauv cov neeg siv khoom siv TV, feem ntau yog hom loj dua. Hauv cov khoom no, cov duab yog tsim los ntawm ib tus neeg LED pixels es tsis yog los ntawm cov kua siv lead ua kua txheej. Txoj hauv kev no - qee zaum ua lag luam hauv cov khoom lag luam- cov npe tshwj xeeb los ntawm cov tuam txhab lag luam - tuaj yeem muab cov yam ntxwv sib txawv thiab ci ntsa iab piv rau LED-backlit LCD.
Txawm li cas los xij, ib qho kev coj ua rau TV hauv qhov ncaj qha - saib LED qeb los ntawm tus nqi siab dua ib qho screen piv rau cov qauv LED- backlit LCD TVs, thiab cov thev naus laus zis txuas ntxiv mus. Thaum lub sijhawm sau ntawv, pawg no sawv cev rau ib feem me me ntawm tag nrho cov neeg siv khoom TV lag luam.
Cov ntsiab lus tseem ceeb rau LED Screen TV
Thaum ntsuas lub vijtsam LED rau TV siv, cov lus qhia hauv qab no tsim nyog nkag siab:
Kev daws teeb meem
Kev daws teeb meem (tag nrho cov pixels ntawm lub vijtsam) txiav txim siab ntau npaum li cas cov lus qhia tuaj yeem pom. Cov qauv txheem muaj xws li Full HD (1920 × 1080 pixels), 4K UHD (3840 × 2160 pixels), thiab 8K (7680 × 4320 pixels). Kev daws teeb meem siab dua tseem ceeb dua ntawm qhov loj dua qhov screen lossis thaum saib los ntawm qhov ze dua.
Refresh Rate
Refresh tus nqi ( ntsuas nyob rau hauv Hz - tus naj npawb ntawm lub sij hawm ib tug thib ob daim duab yog redrawn) cuam tshuam npaum li cas du sai - txav cov ntsiab lus tshwm. Cov nqi tshiab siab dua feem ntau ua kom muaj zog dua hauv kev ua kis las thiab cov ntsiab lus ua haujlwm. Nws yog ib qho tsim nyog sau cia tias cov tuam txhab lag luam qee zaum tshaj tawm "kev ua tau zoo" cov nqi tshiab tau los ntawm kev ua haujlwm, uas tuaj yeem txawv ntawm lub vaj huam sib luag tus nqi refresh npaum li cas.
Kev them nyiaj yug HDR
HDR (High Dynamic Range - ib qho kev muaj peev xwm tso cai rau ntau qhov kev ci ntsa iab thiab xim ntau dua li cov qauv dynamic ntau cov ntsiab lus) yog cov lus qhia tshwj xeeb rau LED TV. Cov hom HDR sib txawv muaj cov kev cai sib txawv, thiab kev siv HDR zoo sib txawv ntawm cov khoom.
Brightness thiab Contrast
Qhov ci ntsa iab ( ntsuas hauv nits - cd / m², lossis candelas ib square meter) cuam tshuam qhov screen ua tau zoo hauv chav ci ntsa iab. Qhov sib piv piv (qhov sib txawv ntawm qhov ci ntsa iab tshaj plaws thiab cov xim dub tshaj plaws ntawm cov zaub tuaj yeem tsim tau) cuam tshuam li cas cov duab zoo li dynamic thiab vivid. Kev siv dimming hauv cheeb tsam cuam tshuam rau qhov zoo sib xws hauv LED-backlit LCD cov ntxaij vab tshaus.
Vaj Huam Sib Luag Loj thiab Saib nrug deb
Qhov loj ntawm lub vijtsam yuav tsum sib phim rau qhov pom qhov deb. Cov lus qhia dav dav muaj nyob hauv kev lag luam kom pom qhov pom qhov deb ntawm qhov screen loj, txawm tias tus kheej nyiam kuj ua lub luag haujlwm. Rau ib qho LED zaub TV, zaum ze rau ntawm lub vijtsam loj dua feem ntau siv tau nrog ntau dua - cov ntsiab lus daws teeb meem.
Sib piv LED Screen TV Options: Yuav Ua Li Cas Ua Ntej
Sib txawv saib qhov tseem ceeb hu rau txawv specifications:
Rau qhov ci chav saib:Ua ntej tso zis ntau dua ci ntsa iab thiab tiv thaiv -paj tsom iav txheej
Rau chav tsaus nti saib movie:Muab qhov tseem ceeb hauv zos dimming zoo thiab kev sib piv
Rau kev ua si thiab kev ua si:Ua ntej tshaj qhov refresh npaum li cas thiab kev ua haujlwm
Rau kev siv sib xyaw ua ke:Sib npaug hla qhov ci, kev daws teeb meem, thiab qhov sib txawv ntawm tus nqi tsim nyog
LED zaub rau TV uas ua tau zoo thoob plaws txhua pawg no nyiam zaum hauv nruab nrab - mus rau - tus nqi siab tshaj rau LED- backlit LCD thev naus laus zis.
Cov ntsiab lus
LED npo TV hauv cov neeg siv khoom lag luam feem ntau yog hais txog LED-backlit LCD TV es tsis yog qhov ncaj qha - saib LED zaub. Nkag siab qhov sib txawv - thiab nyob rau hauv LED- pawg backlit, yuav ua li cas backlighting hom thiab lub zos dimming siv cuam tshuam rau cov duab zoo - muab rau koj paub ntau lub hauv paus rau kev ntsuam xyuas specifications thiab sib piv cov khoom. Sib piv cov ntsiab lus tseem ceeb (kev daws teeb meem, ci ntsa iab, qhov sib piv, tus nqi refresh) rau koj qhov kev pom qhov tseeb thiab cov ntsiab lus nyiam ua rau muaj txiaj ntsig zoo dua li tsuas yog qhov tseem ceeb tshaj plaws ntawm tus lej ntawm ib qho kev txwv.
FAQ
Q: Dab tsi yog qhov txawv ntawm LED TV zaub thiab OLED TV?
A: Ib qho piv txwv LED TV zaub siv LED backlighting qab lub LCD vaj huam sib luag. OLED (Organic Light-Emitting Diode) yog ib qho cuab yeej sib txawv uas txhua pixel tsim nws tus kheej lub teeb thiab tuaj yeem tua tag nrho, ua tiav cov xim dub tiag tiag. Ob lub thev naus laus zis muaj cov yam ntxwv ua haujlwm sib txawv, tshwj xeeb tshaj yog nyob rau hauv qhov sib piv thiab saib cov ces kaum, thiab tus nqi sib txawv.
Q: Puas yog lub vijtsam coj TV zoo ib yam li qhov ncaj qha - saib LED zaub?
A: Tsis yog nyob rau hauv feem ntau. Feem ntau cov neeg siv khoom siv LED npo TV yog LED- backlit LCD panels. Direct- saib cov duab LED, qhov twg LED pixels tsim cov duab ncaj qha, feem ntau pom nyob rau hauv kev lag luam kev teeb tsa xws li cov phab ntsa video thiab loj- hom ntawv kos npe, txawm hais tias lawv muaj ntau ntxiv hauv cov khoom siv hauv TV zoo tshaj.
Q: Dab tsi hauv zos dimming txhais tau li cas hauv lub teeb pom kev tv?
A: Hauv zos dimming yog qhov tshwj xeeb uas LED backlight tau muab faib ua thaj chaw tswj tau ntawm nws tus kheej. Dimming zones tom qab qhov tsaus nti ntawm daim duab txo cov ntshav los ntshav thiab txhim kho qhov sib txawv piv rau cov teeb pom kev zoo sib xws. Ntau thaj chaw dimming feem ntau tso cai rau kev tswj xyuas kom zoo thiab ua haujlwm zoo dua.
Q: Kuv yuav xaiv qhov screen loj npaum li cas rau lub vijtsam coj rau kev siv tv?
A: Qhov loj me ntawm lub vijtsam yuav tsum sib phim rau koj qhov kev pom qhov deb thiab chav tsev. Cov txheej txheem kev lag luam dav dav qhia tias rau 4K cov ntsiab lus, zaum ntawm qhov deb ntawm kwv yees li 1 txog 1.5 npaug ntawm qhov siab qhov screen muab qhov kev pom zoo, txawm tias tus kheej nyiam sib txawv. Kev ntsuas koj qhov chaw muaj ua ntej xaiv qhov loj yuav pab kom tsis txhob muaj lub vijtsam uas xav tias me me dhau los yog hnyav hauv chav.
Q: Kuv yuav xaiv qhov kev daws teeb meem twg rau LED TV zaub?
A: Rau feem ntau chav nyob teeb tsa ntawm tus qauv saib nyob deb, 4K UHD (3840 × 2160 pixels) tam sim no yog qhov kev xaiv tseem ceeb thiab tau txais txiaj ntsig zoo - txhawb nqa los ntawm cov kev pabcuam streaming thiab tshaj tawm cov ntsiab lus . 8K daws teeb meem muaj ntau dua pixel ntom tab sis cov ntsiab lus muaj nyob hauv lub sijhawm no. Rau cov ntxaij vab tshaus me me uas pom los ntawm qhov deb li qub, Full HD (1080p) tseem siv tau.
