Nyob rau hauv kev lag luam LED zaub, qhov ib txwm refresh npaum li cas thiab siab refresh tus nqi tshaj tawm los ntawm kev lag luam feem ntau txhais tau tias yog 1920HZ thiab 3840HZ refresh tus nqi feem. Txoj kev siv ib txwm yog ob-latch tsav thiab PWM tsav raws li. Qhov kev ua tau zoo ntawm kev daws teeb meem feem ntau yog raws li hauv qab no:
[Ob chav latch tsav IC]: 1920HZ refresh npaum li cas, 13Bit zaub grey nplai, built-in dab tshem tawm muaj nuj nqi, tsis tshua muaj hluav taws xob pib ua haujlwm kom tshem tawm cov pixels tuag thiab lwm yam haujlwm;
[PWM tsav tsheb IC]: 3840HZ refresh npaum li cas, 14-16Bit grayscale zaub, built-in dab tshem tawm muaj nuj nqi, tsis tshua muaj voltage pib, thiab tuag pixel tshem tawm functions.
Lub tswv yim tsav tsheb PWM tom kawg muaj ntau qhov kev nthuav qhia grey-ntsuab nyob rau hauv cov ntaub ntawv ntawm ob npaug ntawm tus nqi refresh. Kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob thiab cov algorithms siv nyob rau hauv cov khoom yog ntau thiab ntau nyuaj. Lawm, tus neeg tsav tsheb nti siv thaj tsam wafer loj dua thiab tus nqi ntau dua.
Txawm li cas los xij, nyob rau hauv lub sijhawm dhau los, qhov xwm txheej hauv ntiaj teb tsis ruaj khov, kev nce nqi thiab lwm yam kev lag luam sab nraud, LED cov tuam txhab lag luam xav kom offset tus nqi siab, thiab launched 3K refresh LED cov khoom, tab sis tiag tiag siv 1920HZ refresh iav dual-ntug trigger tsav tsheb. nti Lub tswv yim, los ntawm kev txo tus naj npawb ntawm greyscale loading cov ntsiab lus thiab lwm yam kev ua haujlwm tsis zoo thiab cov ntsuas kev ua haujlwm, hauv kev pauv rau 2880HZ refresh npaum li cas, thiab hom kev hloov tshiab no feem ntau hu ua 3K refresh npaum li cas los tsis lees txais tus nqi refresh saum toj no. 3000HZ kom phim PWM nrog qhov tseeb 3840HZ refresh npaum li cas Lub tswv yim tsav tsheb ua rau cov neeg siv khoom tsis meej pem thiab xav tias ua rau pej xeem tsis meej pem nrog cov khoom tsis zoo.
Vim hais tias feem ntau qhov kev daws teeb meem ntawm 1920X1080 nyob rau hauv cov zaub teb yog hu ua 2K daws teeb meem, thiab qhov kev daws teeb meem ntawm 3840X2160 kuj feem ntau hu ua 4K daws teeb meem. Yog li ntawd, 2880HZ refresh npaum li cas yog ib txwm tsis meej pem rau 3K refresh tus nqi, thiab cov duab tsis zoo uas tuaj yeem ua tiav los ntawm qhov tseeb 3840HZ refresh tsis yog qhov kev txiav txim loj.
Thaum siv cov LED tsav nti dav dav raws li daim ntawv thov kev tshuaj ntsuam xyuas, muaj peb txoj hauv kev los txhim kho qhov pom kev ua kom pom tseeb ntawm kev tshuaj ntsuam xyuas:
1. Txo cov duab grey-scale sub-fields:Los ntawm kev txi qhov ncaj ncees ntawm cov duab grey-scale, lub sij hawm rau txhua lub scan kom tiav cov grey-scale suav yog luv, yog li ntawd tus naj npawb ntawm lub sij hawm ntawm lub vijtsam rov ua dua nyob rau hauv ib lub sij hawm yog nce los txhim kho nws lub zeem muag refresh tus nqi.
2. Txo qhov tsawg kawg nkaus mem tes dav los tswj LED conduction:los ntawm kev txo lub sij hawm LED ci teb, txo lub voj voog ntawm greyscale suav rau txhua qhov scan, thiab ua kom cov sij hawm ntau dua li qhov screen. Txawm li cas los xij, lub sij hawm teb ntawm cov tsoos tsav tsheb chips tsis tuaj yeem txo qis Tsis tas li ntawd, yuav muaj qhov tshwm sim txawv txav xws li qis grey tsis sib xws lossis qis grey xim cam khwb cia.
3. txwv tus naj npawb ntawm cov tsav tsheb chips txuas nrog hauv series:Piv txwv li, nyob rau hauv daim ntawv thov ntawm 8-kab scanning, tus naj npawb ntawm cov neeg tsav tsheb chips txuas nrog nyob rau hauv series yuav tsum raug txwv los xyuas kom meej tias cov ntaub ntawv yuav kis tau raug nyob rau hauv lub sij hawm txwv ntawm ceev scan hloov nyob rau hauv siab refresh npaum li cas.
Lub scanning npo yuav tsum tau tos cov ntaub ntawv ntawm kab tom ntej no yuav tsum tau sau ua ntej hloov kab. Lub sijhawm no tsis tuaj yeem luv luv (lub sijhawm ntev yog proportional rau tus naj npawb ntawm cov chips), txwv tsis pub lub vijtsam yuav pom qhov yuam kev. Tom qab txiav tawm lub sijhawm no, LED tuaj yeem qhib tau zoo. Lub sijhawm teeb pom kev zoo raug txo qis, yog li nyob rau hauv ib lub sij hawm (1/60 sec), tus naj npawb ntawm cov sij hawm uas txhua qhov kev soj ntsuam tuaj yeem raug txwv, thiab qhov kev siv LED tsis siab (saib daim duab hauv qab). Tsis tas li ntawd, kev tsim thiab kev siv ntawm cov maub los yuav nyuaj, thiab bandwidth ntawm kev ua cov ntaub ntawv sab hauv yuav tsum tau nce, uas ua rau txo qis hauv hardware stability. Tsis tas li ntawd, tus naj npawb ntawm cov kev txwv uas cov neeg siv yuav tsum tau soj ntsuam nce. Coj erratically.
Qhov kev thov rau cov duab zoo nyob rau hauv kev ua lag luam yog nce ib hnub dhau ib hnub. Txawm hais tias cov chips tsav tsheb tam sim no muaj qhov zoo ntawm S-PWM thev naus laus zis, tseem muaj lub fwj tsis tuaj yeem tawg los ntawm kev siv cov tshuaj ntsuam xyuas. Piv txwv li, lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm S-PWM tsav nti uas twb muaj lawm yog qhia hauv daim duab hauv qab no. Yog tias S-PWM thev naus laus zis tsav tsheb nti siv los tsim lub 1: 8 scanning npo, nyob rau hauv cov xwm txheej ntawm 16-ntsis grey scale thiab PWM suav zaus ntawm 16MHz, qhov pom kev ua kom pom tseeb yog li 30Hz. Hauv 14-ntsis greyscale, qhov pom kev ua kom pom tseeb yog li 120Hz. Txawm li cas los xij, qhov pom kev ua kom pom tseeb yuav tsum muaj tsawg kawg yog siab dua 3000Hz kom tau raws li qhov xav tau ntawm tib neeg lub qhov muag rau daim duab zoo. Yog li ntawd, thaum qhov kev thov tus nqi ntawm qhov pom kev refresh tus nqi yog 3000Hz, LED tsav tsheb chips nrog cov haujlwm zoo dua yuav tsum tau ua kom tau raws li qhov xav tau.
Refresh feem ntau txhais raws li tus lej n zaug tus ncej tus nqi ntawm qhov video 60FPS. Feem ntau, 1920HZ yog 32 npaug ntawm tus ncej tus nqi ntawm 60FPS. Feem ntau ntawm lawv yog siv nyob rau hauv lub tsev xauj zaub, uas yog ib tug high-brightness thiab high-refresh teb. Lub tsev board qhia hauv 32 scans LED zaub vaj huam sib luag ntawm qib hauv qab no; 3840HZ yog 64 npaug ntawm tus ncej tus nqi ntawm 60FPS, thiab lawv feem ntau yog siv rau ntawm 64-scan LED zaub chav tsev boards nrog tsawg brightness thiab siab refresh npaum li cas ntawm sab hauv LED zaub.
Txawm li cas los xij, cov zaub module raws li lub hauv paus ntawm 1920HZ tsav thav duab yog yuam kom nce mus rau 2880HZ, uas yuav tsum tau 4BIT kho vajtse ua qhov chaw, yuav tsum tau tawg los ntawm kev txwv sab sauv ntawm kev ua haujlwm kho vajtse, thiab yuav tsum tau txi cov lej grey. Distortion thiab instability.
Post lub sij hawm: Mar-31-2023
