Txawm tias muaj qee qhov tsis txaus, LCD TVs (xws li LED / LCD TVs) yog hom tseem ceeb ntawm TV yuav los ntawm cov neeg siv khoom. Qhov kev lees txais ntawm LCD TVs nrawm rau kev tuag ntawm CRT thiab rear-projection TVs thiab yog qhov laj thawj tseem ceeb uas cov plasma TVs tsis muaj lawm.
Nyob rau hauv xyoo tas los no, OLED TV, coj los ntawm LG, tau touted ua tus successor rau LCD. Txawm hais tias OLED sawv cev rau kev nce qib hauv TV thev naus laus zis, LCD TVs tau coj nws mus rau qhov tsis zoo nrog kev koom ua ke ntawm quantum dots (aka QLED).
Quantum dots thiab QLED xa mus rau tib lub thev naus laus zis. QLED yog ib lo lus lag luam uas Samsung thiab TCL siv los ua cov npe ntawm lawv cov quantum-dot TVs. Cov teeb no ua ke ua ke LED backlighting nrog quantum dots nyob rau hauv xaiv LCD TVs rau xim li.
Quantum Dot yog dab tsi
A quantum dot yog cov khoom tsim nanocrystal nrog cov khoom siv semiconductor uas tuaj yeem txhim kho qhov ci thiab xim kev ua tau zoo tso tawm hauv cov duab tseem thiab yees duab ntawm lub vijtsam LCD.
Quantum dots yog emissive particles (zoo li phosphors ntawm lub plasma TV). Thaum cov khoom raug ntaus nrog photons los ntawm lub teeb pom kev sab nraud (nyob rau hauv cov ntaub ntawv ntawm LCD TV daim ntawv thov, lub teeb xiav LED), txhua lub dot emits cov xim ntawm ib qho bandwidth, uas yog txiav txim los ntawm nws qhov loj me. Cov dots loj tshaj tawm lub teeb uas yog skewed rau liab. Raws li cov dots me me, cov dots emit lub teeb uas skewed mus rau ntsuab.
Thaum quantum dots ntawm qhov ntau thiab tsawg tau muab tso rau hauv cov qauv thiab ua ke nrog lub teeb xiav LED, lub quantum dots emit teeb hla tag nrho cov xim bandwidth xav tau rau kev saib TV.
Daim duab saum toj no qhia txog cov qauv ntawm quantum dot (ntawm sab xis), piv txwv li kev sib raug zoo ntawm quantum-dot xim emission zog raws li qhov loj me (saib sab laug), thiab txoj kev uas quantum dots yog manufactured.
Yuav ua li cas Quantum Dots tuaj yeem siv hauv LCD TVs
Thaum quantum dots tau ua, qhov sib txawv me me tuaj yeem muab tso rau hauv qhov sib txawv lossis hauv qhov loj me hauv ib lub thawv uas tuaj yeem muab tso rau hauv LCD TV. Nrog lub LCD TV, cov dots feem ntau yog ob qhov ntau thiab tsawg, ib qho optimized rau ntsuab thiab lwm qhov optimized rau liab.
Daim duab saum toj no qhia txog txoj hauv kev quantum dots tuaj yeem muab tso rau hauv LCD TV.
- Inside ib lub casing (hu ua ntug optic) raws LCD vaj huam sib luag ntawm ib lub xiav LED ntug teeb qhov chaw thiab lub LCD vaj huam sib luag (rau ntug-lit LED / LCD TVs).
- Ntawm cov txheej txheem ua yeeb yaj kiab (QDEF) muab tso rau nruab nrab ntawm lub teeb xiav LED thiab lub LCD vaj huam sib luag (rau tag nrho-array lossis ncaj-lit LED / LCD TVs).
- Ntawm lub nti uas muab tso rau saum lub teeb xiav LED qhov chaw nyob ntawm ntug ntawm lub vaj huam sib luag LCD (rau ntug-lit LED / LCD TVs).
Nyob rau hauv txhua txoj kev, lub teeb xiav LED xa lub teeb los ntawm quantum dots uas zoo siab heev kom cov quantum dots emit liab thiab ntsuab teeb (uas kuj ua ke nrog xiav los ntawm LED teeb qhov chaw).
Lub teeb xim sib txawv dhau los ntawm LCD chips thiab xim lim, tom qab ntawd mus rau qhov screen rau cov duab tso saib. Qhov ntxiv quantum-dot emissive txheej tso cai rau lub LCD TV tso saib ntau cov xim saturated thiab dav xim gamut tshaj LCD TVs tsis muaj quantum-dot txheej ntxiv.
Qhov cuam tshuam ntawm Ntxiv Quantum Dots rau LCD TVs
Qhia hauv qab no yog daim ntawv qhia thiab piv txwv ntawm yuav ua li cas ntxiv quantum dots rau LCD TVs tuaj yeem txhim kho xim kev ua haujlwm.
Daim duab saum toj kawg nkaus yog tus qauv graphical sawv cev qhia txog cov xim pom tag nrho. TVs thiab yees duab yees tsis tuaj yeem tso saib tag nrho cov xim spectrum. Ua raws li qhov xav tau, cov duab peb sab uas pom nyob rau hauv qhov spectrum qhia tau tias ze li cas ntau yam xim technologies siv nyob rau hauv cov yeeb yaj kiab tso tawm cov cuab yeej mus rau lub hom phiaj ntawd.
Raws li koj tuaj yeem pom los ntawm daim duab peb sab, LCD TVs siv cov xim dawb LED rov qab los yog ntug teeb pom kev pom cov xim nqaim dua li quantum dot-nrog TVs. Quantum dots tso saib xim uas ntau saturated thiab ntuj, raws li qhia nyob rau hauv qhov kev sib piv hauv qab daim duab.
Quantum dots tuaj yeem ua tiav cov kev xav tau ntawm HD (rec.709) thiab Ultra HD (rec.2020/BT.2020) cov qauv xim.
Standard LED / LCD vs. OLED
LCD TVs muaj qhov tsis zoo ntawm cov xim saturation thiab qib dub, tshwj xeeb tshaj yog thaum piv rau cov plasma TVs, uas tsis muaj lawm. Kev koom ua ke ntawm LED dub-thiab-ntug-teeb pom kev zoo tau pab qee yam, tab sis qhov ntawd tsis tau txaus.
Raws li cov lus teb, TV kev lag luam (feem ntau LG) tau nrhiav OLED thev naus laus zis raws li kev daws teeb meem vim nws tuaj yeem tsim cov xim dav dua thiab cov xim dub.
LG siv lub kaw lus hu ua WRGB, uas yog kev sib txuas ntawm lub teeb dawb-emitting OLED subpixels thiab xim lim los tsim cov duab. Samsung suav nrog qhov tseeb liab, ntsuab, thiab xiav lub teeb-emitting OLED subpixels.
Samsung tau tawm ntawm cov neeg siv khoom OLED TV tsim tawm hauv xyoo 2015, tawm hauv LG thiab Sony ua ib qho chaw rau OLED TVs hauv Asmeskas kev lag luam. Samsung tau mob siab rau nws cov peev txheej los nqa quantum-dot (QLED) TVs rau kev ua lag luam, nrog rau Vizio thiab TCL.
OLED TVs saib zoo, tab sis qhov teeb meem loj qeeb qeeb ntau lub npe TV los ntawm kev nqa OLED TVs mus rau kev lag luam ntawm qhov loj me yog tus nqi.
Txawm hais tias qhov kev thov tias LCD TVs muaj qhov nyuaj hauv cov qauv dua li OLED TVs, OLED TV tseem kim dua los tsim cov npo loj. Qhov no yog vim qhov tsis xws luag uas tshwm sim hauv cov txheej txheem tsim khoom uas ua rau feem pua ntawm OLED panels raug tsis lees paub los ntawm kev siv rau qhov loj me ntawm lub vijtsam. Raws li qhov tshwm sim, feem ntau ntawm OLED qhov zoo (xws li tso saib cov xim dav dua thiab cov xim dub tob dua) dhau LED / LCD TVs tsis tau ua rau cov chaw tsim khoom siv dav dav.
Ua kom zoo dua ntawm OLED cov kev txwv ntau lawm thiab muaj peev xwm los koom nrog quantum dots rau tam sim no ua tiav LED / LCD TV tsim (nrog me ntsis kev hloov pauv hauv cov kab sib dhos), quantum dots tau pom raws li daim pib coj LED / LCD TV kev ua tau zoo nyob ze rau ntawm OLED, tab sis ntawm tus nqi qis dua.
Samsung yog tus thawj coj ntawm kev txav mus los uas sib txuas quantum dots nrog OLED (dubbed QD-OLED) rau kev ua tau zoo xim thiab ci ntsa iab yam tsis muaj qhov tsis zoo ntawm QLED thiab OLED TVs tam sim no. Tsis muaj lus hais txog thaum twg lossis yog tias cov khoom zoo li no tuaj rau hauv khw.
LCD Nrog Quantum Dots (QLED) vs. OLED
Ntxiv quantum dots rau LCD TV coj nws qhov kev ua tau zoo los ze zog rau ntawm OLED TV. Tseem, muaj cov cheeb tsam uas txhua tus muaj qhov zoo thiab qhov tsis zoo. Nov yog cov piv txwv ntawm qee qhov sib txawv.
- Xim kev ua haujlwm ntawm par nrog OLED.
- Txhim xim zoo nkauj saturation raws li qhov ci hloov pauv zoo dua OLED.
- Tsis pom qhov dub kiag li.
- Kev tsis sib xws ntawm lub vijtsam. Cov xim dub thiab dawb tsis nyob thoob plaws tag nrho lub vijtsam.
- A qhov pom qhov nqaim dua thaum piv rau OLED TVs.
- Lub teeb tso zis siab muaj peev xwm siv lub zog ntau dua.
- xim xim raug zoo.
- Tsis zoo li QLED ntawm kev tswj cov xim saturation raws li qhov ci hloov.
- Can tso saib dub kiag.
- Tsis ci li QLED TV. Qhov zoo tshaj plaws hauv chav tsaus nti.
- Kev tshuaj ntsuam zoo dua qub (dub thiab dawb txawm nyob thoob qhov screen) dua li QLED TVs.
- Kev siv hluav taws xob tsawg dua li QLED TVs ntau.
- Ntau dua QLED TVs.
Quantum Dots: Muaj yeeb yuj tam sim no thiab yav tom ntej
Cov chaw muab kev pabcuam tseem ceeb ntawm quantum-dot thev naus laus zis rau siv hauv TVs yog Nanosys thiab 3M, uas muab cov quantum-dot zaj duab xis (QDEF) kev xaiv rau kev siv nrog puv-array backlit LED / LCD TVs.
Hauv daim duab saum toj no, lub TV ntawm sab laug sab laug yog Samsung 4K LED / LCD TV. Mus rau sab xis thiab hauv qab yog LG 4K OLED TV. Sab saum toj LG OLED TV yog Philips 4K LED / LCD TV nruab nrog quantum-dot technology. Cov liab pop tawm ntau dua ntawm Philips dua li ntawm Samsung teeb thiab yog me ntsis saturated dua li cov liab tshwm ntawm LG OLED teeb.
Ntawm sab xis ntawm daim duab yog piv txwv ntawm quantum dot-nruab TVs los ntawm TCL thiab Hisense.
Kev siv quantum dots tau nce mus tom ntej raws li ntau tus neeg tsim TV tau nthuav tawm quantum dot-enabled TVs ntawm kev ua lag luam, suav nrog Samsung, TCL, Hisense/Sharp, Vizio, thiab Philips. Ntawm cov ntawd, Samsung thiab Vizio tau coj cov qauv los ua lag luam hauv Asmeskas, nrog TCL kuj dhia hauv. Samsung thiab TCL hom lawv cov quantum-dot TVs li QLED TVs, thaum Vizio siv lub sij hawm Quantum.
LG tau nthuav tawm qee qhov quantum-dot TV cov qauv hauv xyoo 2015 tab sis thim rov qab los ntawm kev coj cov no mus rau kev lag luam los muab cov peev txheej ntxiv rau hauv lawv cov Nano Cell thev naus laus zis hauv kev xaiv LCD TVs nrog rau ua TV kim dua siv OLED thev naus laus zis.
Nrog LG thiab Sony (raws li xyoo 2020) uas tsuas yog cov neeg tsim khoom ntawm OLED TVs (Sony OLED TVs siv LG OLED panels) rau Asmeskas kev ua lag luam, quantum dot lwm txoj rau kev txhim kho xim muab los ntawm Nanosys thiab 3M tuaj yeem ua rau LCD mus txuas ntxiv kev lag luam dominance rau xyoo tom ntej.
Tom ntej koj mus yuav khoom rau TV, xyuas seb nws puas muaj xim IQ, QLED, QD, QDT, Quantum, lossis cov ntawv zoo sib xws ntawm cov teeb lossis hauv cov lus qhia siv. Qhov ntawd qhia rau koj tias TV siv quantum-dot technology.
FAQ
Puas QLED TVs zoo dua OLED TVs?
Qhov no yuav yog nyob ntawm cov TV tshwj xeeb uas koj tab tom muab piv, tab sis ntawm qhov siab kawg, OLED raws li cov thev naus laus zis yuav raug nqi ntau dua thiab muab cov duab zoo tshaj plaws rau koj tuaj yeem yuav. Txawm li cas los xij, muaj ntau yam ntxiv, xws li lub sijhawm teb lossis qhov ci ntsa iab, uas nkag mus rau hauv kev yuav lub TV uas tuaj yeem ua rau QLED TV zoo dua.
Puas yog IPS TVs zoo dua QLED TVs?
Qhov no kuj tseem nyob ntawm cov qauv tshwj xeeb uas koj tab tom muab piv, tab sis IPS yog cov cuab yeej siv feem ntau siv hauv cov saib vim tias nws cov txiaj ntsig zoo dua li LCD / LED TVs ua ke nrog lub sijhawm teb ceev. Txawm li cas los xij, nyob rau hauv cov nqe lus ntawm cov duab ntshiab, QLED TVs ntawm high-end nyiam muab cov duab zoo dua li IPS TVs.
