M'makampani owonetsera ma LED, kutsitsimula kwanthawi zonse komanso kutsitsimula kwakukulu komwe kumalengezedwa ndi makampani nthawi zambiri kumatanthauzidwa kuti 1920HZ ndi 3840HZ mitengo yotsitsimutsa motsatana.Njira zogwiritsiridwa ntchito nthawi zonse ndi ma drive-latch drive ndi PWM drive motsatana.Ntchito yeniyeni ya yankho ili makamaka motere:
[Double latch driver IC]: 1920HZ refresh rate, 13Bit kuwonetsa sikelo yotuwa, ntchito yochotsa mizukwa, ntchito yoyambira yamagetsi yotsika kuchotsa ma pixel akufa ndi ntchito zina;
[PWM driver IC]: 3840HZ refresh rate, 14-16Bit grayscale chiwonetsero, ntchito yochotsa mizukwa, kuyambitsa kwamagetsi otsika, ndi ntchito zochotsa ma pixel zakufa.
Dongosolo lomaliza la PWM loyendetsa limakhala ndi mawonekedwe otuwa kwambiri pakuchulukitsa kuchuluka kwa zotsitsimutsa.Ntchito zamagawo ophatikizika ndi ma aligorivimu omwe amagwiritsidwa ntchito pazogulitsa ndizovuta kwambiri.Mwachilengedwe, chip cha driver chimatengera malo okulirapo komanso mtengo wokwera.
Komabe, m'nthawi ya mliri wapadziko lonse lapansi, zinthu zapadziko lonse lapansi sizikhazikika, kukwera kwamitengo ndi zinthu zina zachuma zakunja, opanga mawonetsero a LED akufuna kuthana ndi kukakamiza kwamitengo, ndikuyambitsa zida za 3K zotsitsimutsa za LED, koma gwiritsani ntchito 1920HZ zotsitsimutsa zida zapawiri-m'mphepete. chip Chiwembuchi, pochepetsa kuchuluka kwa malo otsegulira otuwa ndi magawo ena ogwira ntchito ndi zizindikiro zogwirira ntchito, posinthanitsa ndi 2880HZ mtengo wotsitsimutsa, ndipo mtundu uwu wotsitsimutsa umatchedwa 3K refresh rate kunena zabodza mtengo wotsitsimutsa pamwambapa. 3000HZ kuti ifanane ndi PWM ndi mtengo wotsitsimula weniweni wa 3840HZ Njira yoyendetsera galimoto imasokoneza ogula ndipo akuwakayikira kuti asokoneza anthu ndi zinthu zopanda pake.
Chifukwa nthawi zambiri kusamvana kwa 1920X1080 m'munda wowonetsera kumatchedwa kusamvana kwa 2K, ndipo kusamvana kwa 3840X2160 kumatchedwanso kusamvana kwa 4K.Chifukwa chake, mulingo wotsitsimutsa wa 2880HZ mwachilengedwe umasokonekera mpaka mulingo wotsitsimutsa wa 3K, ndipo mawonekedwe azithunzi omwe atha kupezedwa ndi kutsitsimutsa kwenikweni kwa 3840HZ si dongosolo la kukula.
Mukamagwiritsa ntchito chipangizo chowongolera cha LED ngati pulogalamu yojambulira, pali njira zazikulu zitatu zosinthira mawonekedwe otsitsimutsa pazenera:
1. Chepetsani chiwerengero cha magawo ang'onoang'ono azithunzi:Popereka kukhulupirika kwa chithunzi chotuwa, nthawi ya jambulani iliyonse kuti amalize kuwerengera imvi imafupikitsidwa, kotero kuti nthawi yomwe chinsalucho chimayatsidwa mobwerezabwereza mkati mwa nthawi ya chimango chimodzi chimachulukitsidwa kuti chiwongolero chake chitsitsimuke.
2. Kufupikitsa kuchuluka kwa kugunda kwamphamvu kuti muwongolere kayendetsedwe ka LED:pochepetsa nthawi yowala ya LED, kufupikitsa kuzungulira kwa grayscale pa sikani iliyonse, ndikuwonjezera kuchuluka kwa nthawi yomwe chinsalu chimayatsidwa mobwerezabwereza.Komabe, nthawi yoyankhira ya tchipisi tachikhalidwe sichitha kuchepetsedwa Kupanda kutero, padzakhala zochitika zachilendo monga kutsika kwa imvi kapena kutsika kwamtundu wotuwa.
3. Chepetsani kuchuluka kwa ma driver tchipisi olumikizidwa mu mndandanda:Mwachitsanzo, pakugwiritsa ntchito sikani ya mizere 8, kuchuluka kwa tchipisi ta madalaivala olumikizidwa pamndandanda kuyenera kuchepetsedwa kuti zitsimikizire kuti datayo imatha kufalitsidwa moyenera mkati mwa nthawi yochepa yosintha mwachangu potsitsimutsa kwambiri.
Chojambula chojambulira chiyenera kudikirira kuti deta ya mzere wotsatira ilembedwe musanasinthe mzerewo.Nthawiyi singafupikitsidwe (kutalika kwa nthawi kumayenderana ndi kuchuluka kwa tchipisi), apo ayi chinsalu chidzawonetsa zolakwika.Pambuyo pochotsa nthawi izi, ma LED amatha kuyatsidwa bwino.Nthawi yowunikira imachepetsedwa, kotero mkati mwa nthawi ya chimango (1/60 sec), kuchuluka kwa nthawi zomwe masikani onse amatha kuyatsa amakhala ochepa, ndipo kugwiritsa ntchito kwa LED sikuli kwakukulu (onani chithunzi pansipa).Kuonjezera apo, kupanga ndi kugwiritsa ntchito kwa wolamulira kumakhala kovuta kwambiri, ndipo bandwidth ya data mkati mkati iyenera kuwonjezereka, zomwe zimapangitsa kuchepa kwa kukhazikika kwa hardware.Kuphatikiza apo, kuchuluka kwa magawo omwe ogwiritsa ntchito ayenera kuyang'anira akuwonjezeka.Kuchita molakwika.
Kufunika kwa mtundu wazithunzi pamsika kukukulirakulira tsiku ndi tsiku.Ngakhale ma tchipisi apano oyendetsa ali ndi zabwino zaukadaulo wa S-PWM, pakadali botolo lomwe silingathe kuthyoledwa pakugwiritsa ntchito zowonera.Mwachitsanzo, mfundo yoyendetsera chip yomwe ilipo ya S-PWM ikuwonetsedwa pachithunzi pansipa.Ngati chipangizo choyendetsa ukadaulo cha S-PWM chomwe chilipo chikugwiritsidwa ntchito kupanga 1: 8 scanning screen, pansi pamikhalidwe ya 16-bit gray scale ndi PWM kuwerengera pafupipafupi 16MHz, chiwonetsero chotsitsimutsa ndi pafupifupi 30Hz.Mu 14-bit grayscale, mawonekedwe otsitsimula ndi pafupifupi 120Hz.Komabe, mawonekedwe otsitsimula akuyenera kukhala osachepera 3000Hz kuti akwaniritse zofunikira za diso la munthu pazithunzi.Chifukwa chake, mtengo wofunikira wa mawonekedwe otsitsimula ndi 3000Hz, tchipisi ta ma driver a LED okhala ndi ntchito zabwinoko amafunikira kuti akwaniritse zomwe akufuna.
Kutsitsimutsa nthawi zambiri kumatanthauzidwa molingana ndi chiwerengero cha n nthawi ndi mlingo wa gwero la kanema 60FPS.Nthawi zambiri, 1920HZ ndi 32 kuchulukitsa kwa 60FPS.Zambiri mwazo zimagwiritsidwa ntchito powonetserako zobwereka, zomwe zimakhala zowala kwambiri komanso zotsitsimula kwambiri.Gulu loyang'anira mayunitsi likuwonetsa mu 32 kusanthula ma board a LED a magawo otsatirawa;3840HZ ndi nthawi 64 kuposa mlingo wa 60FPS, ndipo ambiri a iwo amagwiritsidwa ntchito pa 64-scan ma LED ma unit board omwe ali ndi kuwala kochepa komanso kutsitsimula kwakukulu pa zowonetsera zamkati za LED.
Komabe, gawo lowonetsera pamaziko a 1920HZ drive chimango chikuwonjezeka mokakamiza mpaka 2880HZ, yomwe imafuna malo opangira zida za 4BIT, imayenera kudutsa malire apamwamba a magwiridwe antchito a Hardware, ndipo imayenera kupereka nsembe kuchuluka kwa mamba a imvi.Kusokoneza ndi kusakhazikika.
Nthawi yotumiza: Mar-31-2023
