Los ntawm cov tshuab tshaj tawm ntse rau TVs high-end, kev ua lag luam rau cov kua siv lead ua kua zaub cov ntxaij vab tshaus tau nqos ib kauj ruam zuj zus, thiab OLED kua siv lead ua cov ntxaij vab tshaus pib nce. Needless hais, kev ua tau zoo ntawm OLED cov ntxaij vab tshaus hauv kev lag luam hauv xov tooj ntse, nyob rau hauv kev cuam tshuam ntawm kev npaj zaub thiab foldable cov ntxaij vab tshaus, Apple kuj tau mob siab rau nws tus kheej rau puag ntawm OLED kua siv lead ua cov ntxaij vab tshaus.
Kuv tsis paub' tsis paub thaum twg nws pib, OLED kua siv lead ua cov ntxaij vab tshaus yuav maj mam dhau los ua lub ntsiab ntawm kev ua lag luam. Los ntawm cov tshuab tshaj tawm ntse rau TVs high-end, kev ua lag luam rau cov kua siv lead ua kua zaub cov ntxaij vab tshaus tau nqos ib kauj ruam zuj zus, thiab OLED kua siv lead ua cov ntxaij vab tshaus pib nce. Needless hais, kev ua tau zoo ntawm OLED cov ntxaij vab tshaus hauv kev lag luam hauv xov tooj ntse, nyob rau hauv kev cuam tshuam ntawm kev npaj zaub thiab foldable cov ntxaij vab tshaus, Apple kuj tau mob siab rau nws tus kheej rau puag ntawm OLED kua siv lead ua cov ntxaij vab tshaus.
Hauv kev ua lag luam LCD TV, qhov xwm txheej tsis zoo li hauv kev lag luam ntse tshaj tawm tshuab lag luam, tab sis xyoo 2018, kev muag khoom thoob ntiaj teb ntawm OLED TV panels yuav ntaus 4 lab cim, tswj kom muaj kev loj hlob sai. Nyob rau tib lub sijhawm, nyob rau hauv kev faib ua feem ntawm high-end TV khw khw, nws cov ntaub ntawv tshawb fawb qhia tau hais tias OLED kua siv lead ua kua zaub screen cov khoom lag luam suav txog ntau dua 60% ntawm cov khoom TV uas raug nqi ntau dua US $ 2,500. Nws tuaj yeem pom tias txawm tias nws yog lub khw muag khoom lag luam ntse lossis LCD TV ua lag luam, OLED cov ntxaij vab tshaus tau muab cov txiaj ntsig zoo heev, thiab feem ntau ntawm cov chaw lag luam high-end yog nce.
Yog vim li cas los txhawb qhov nrov ntawm OLED
OLED kua siv lead ua kua zaub screen tuaj yeem nrov heev, thiab qhov tseem ceeb tshaj plaws yog tseem nws cov zaub ua haujlwm. Ua tsaug rau nws tus kheej-luminous zog, OLED cov ntxaij vab tshaus tuaj yeem muab qhov pom dav dua. Tsis tas li ntawd, OLED cov ntxaij vab tshaus tseem tuaj yeem coj qhov sib txawv ze-infinite. Qhov no txhais tau hais tias OLED npo tuaj yeem nqa qhov kev ua haujlwm dub kawg. Cov xim gamut ntawm OLED cov ntxaij vab tshaus kuj dav dua. Piv nrog rau lub teeb ntawm lub vijtsam LCD, qhov kev zoo nkauj ntawm OLED screen yog pom tseeb dua.
Txij li thaum tsis muaj lub teeb pom kev zoo, qhov no ua rau OLED cov kua siv lead ua kua zaub cov ntxaij vab tshaus nyias thiab sib dua, ua rau nyias thiab sib dua OLED TVs. Nyob rau hauv lub neej yav tom ntej, thaum cov kev txawj ntse loj hlob mus rau ib theem, OLED TVs yuav ua tau nyias li ntawv.
Txhua tus mob lawv ob lub qhov muag?
Txawm hais tias OLED zaub screen zoo li qhov ua tau, tseem muaj ntau tus neeg siv khoom hauv khw muag khoom uas khov kho lub vijtsam LCD. Yog vim li cas yog tias feem coob ntawm cov neeg siv khoom yuav ntsib qhov tsis xis nyob tom qab saib OLED screen ntev. Thaum koj hloov rov qab mus rau LCD kua siv lead ua zaub screen ntaus ntawv, cov tsos mob no yuav ploj tam sim ntawd.
Nws tuaj yeem pom tau tias OLED screen yuav ua rau muaj kev phom sij rau tib neeg lub qhov muag.
Tab sis tom qab kev tshawb fawb los ntawm cov kws tshaj lij, peb tuaj yeem paub tias qhov teeb meem raug mob qhov muag ntawm OLED cov ntxaij vab tshaus nyob ntawm tus kheej lub cev. Qee cov neeg siv khoom tau ntsib qhov pom kev qaug zog thiab lwm yam tsos mob thaum saib OLED npo, tab sis tib lub sijhawm, coob tus neeg siv khoom tseem qhia tias nws tsis muaj txiaj ntsig.
The culprit PWM dimming
PWM dimming tsis yog ib qho kev sib raug zoo rau kev tswj kev ci ntsa iab, tab sis es tsis txhob nyob ntawm kev sib raug zoo ntawm teeb pom kev zoo thiab kev sib haum xeeb. Ntawd yog, nyob rau hauv ib lub sij hawm, thaum lub vijtsam zaub yog ci, nws txhais tau hais tias tus naj npawb ntawm cov sij hawm ntawm kev sib hloov ntawm thiab tawm ntawm lub vijtsam yog siab, thiab thaum lub vijtsam zaub tsaus, tus naj npawb ntawm lub sijhawm sib hloov ntawm thiab tawm. tej zaum yuav qis.
Qhov no txhais tau hais tias qhov ci ntawm lub vijtsam OLED, qhov siab dua nws cov stroboscopic (tus naj npawb ntawm lub sijhawm lub vijtsam tig rau thiab tawm). Qhov screen tsaus dua, qhov qis dua qhov screen flicker. IEEE kuj muaj cov ntaub ntawv tso saib. OLED cov ntxaij vab tshaus uas siv PWM dimming yuav tsum tsawg kawg tswj lub vijtsam flicker zaus saum 1250HZ yog tias koj xav kom tsis txhob ua mob rau koj ob lub qhov muag. Yog tias koj xav kom tsis txhob cuam tshuam rau tib neeg kev noj qab haus huv, koj yuav tsum ua kom lub flicker nce siab tshaj 3000 Hz. Txawm li cas los xij, tam sim no lub ntsiab OLED screen strobe yog qhov tseem ceeb ntawm 200Hz-500Hz, uas yog qis dua tus qauv kev noj qab haus huv muab los ntawm IEEE.
Txawm li cas los xij, tam sim no LCD kua siv lead ua zaub screen yog ib txwm nyob, yog li tsis muaj teeb meem ntawm stroboscopic, yog li nws muaj kev nyab xeeb dua. Tab sis nws yuav tsum paub meej tias lub vijtsam LCD kuj tuaj yeem yog PWM dimmable. Tsuas yog nrog kev txhim kho txuas ntxiv ntawm kev txawj ntse, LCD npo ntawm PWM dimming tau raug tshuaj xyuas.
