Lokacin da aka yi amfani da allon nunin LED a ɗakin sarrafawa, ɗakin studio da sauran wurare, wani lokaci zai haifar da tsangwama ga hoton kamara.Wannan takarda ta gabatar da dalilai da mafita na moire, kuma ta mayar da hankali kan yadda za a zabi allon nuni na LED don rage ko kawar da moire.
1.Ta yaya moire ya kasance?
2.Yaya za a kawar da ko rage moire?
3.Yadda za a canza tsarin grid na CCD kamara da nunin LED?
4.Yadda za a canza darajar dangi na CCD kamara da tsarin grid nuni na LED?
5.Shin akwai hanyar da za a juya yankin baƙar fata mara haske zuwa wuri mai haske akan nunin LED?
Lokacin ɗora hotuna akan allon nunin lantarki na LED a cikin aiki, wasu ban mamaki ratsi da ripples marasa tsari zasu bayyana.Ana kiran waɗannan ripples moire fringes ko moire effects.Tasirin Moire shine hangen nesa na gani.Lokacin da aka ga rukunin layi ko maki a saman wani rukunin layi ko maki, waɗannan layin ko maki sun bambanta da girman dangi, kwana ko tazara.
Babban tasirin tasirin Moore shine talabijin da kyamara.Idan hasken da ke tsakanin pixels na allon nunin lantarki na LED bai daidaita ba, ingancin hoton da ke kan allon nunin lantarki na LED zai iya haifar da haske lokacin da aka kalli allon nuni a hankali.Wannan yana haifar da babban kalubale ga samar da ɗakunan TV da sauran kayan aikin bidiyo.
(1) Ta yaya moire ya kasance?
Moire:
Lokacin da alamu biyu tare da mitar sararin samaniya suka yi karo da juna, ana haifar da wani sabon salo, wanda galibi ana kiransa tsarin moire (kamar yadda aka nuna a hoto na 2).
Allon nunin LED na gargajiya an shirya shi ta pikseloli masu haske masu zaman kansu, kuma akwai bayyane wuraren baƙar fata masu haske tsakanin pixels.A lokaci guda, ma'auni mai mahimmanci na kyamarar dijital shima yana da fili mai rauni yanki mai raunin haske lokacin jin haske.Lokacin da nuni na dijital da daukar hoto na dijital suka wanzu a lokaci guda, ana haifar da ƙirar moire.
Tun da CCD (image firikwensin) manufa surface (photosensitive surface) na kamara yana kama da adadi a tsakiyar Hoto 2, yayin da al'ada LED nuni allon yayi kama da hoton gefen hagu na Hoto 2. An hada shi. na lattice haske emitting bututu shirya su daidai.Gaba ɗaya allon nuni yana da babban yanki mara haske, yana samar da grid kamar tsari.Haɗewar su biyun yana samar da tsari mai kama da gefen dama na Hoto 2.
(2) Yadda za a kawar ko rage moire?
Tun da tsarin grid nuni na LED yana hulɗa tare da tsarin grid na CCD na kyamara don samar da tsarin moire, canza ƙimar dangi da tsarin grid na tsarin grid CCD na kyamara da tsarin grid nuni na LED na iya kawar da ƙayyadaddun tsari ko rage ƙirar moire.
(3) Yadda za a canza tsarin grid na CCD kamara da nunin LED?
A cikin aiwatar da rikodin fim, babu pixel tare da rarrabawa na yau da kullun, don haka babu ƙayyadaddun mitar sararin samaniya kuma babu moire.
Saboda haka, al'amarin moire matsala ce da ke haifar da dijital na kyamarar TV.Don kawar da moire, ƙudurin hoton allo na LED wanda aka ɗauka a cikin ruwan tabarau ya kamata ya zama ƙasa da mitar sararin samaniya mai mahimmanci.Lokacin da wannan yanayin ya cika, babu gefuna masu kama da na firikwensin da zai iya bayyana a cikin hoton, don haka ba za a samar da moire ba.
A wasu kyamarori na dijital, ana shigar da matattara mai ƙarancin wucewa don tace mafi girman ɓangaren mitar hoton don rage moire, amma wannan zai rage girman hoton.Wasu kyamarori na dijital suna amfani da abubuwan gano mitar sarari mafi girma.
(4) Yadda za a canza darajar dangi na CCD kamara da tsarin grid nuni na LED?
1. Canja kusurwar harbin kyamara.Ta hanyar jujjuya kyamarar da ɗan canza kusurwar harbi na kamara, za a iya kawar da ripple ko rage.
2. Canja wurin harbi kamara.Ta hanyar matsar da kyamarar hagu da dama ko sama da ƙasa, zaku iya kawar da ko rage ripple ɗin tawadar.
3. Canja saitin mayar da hankali akan kyamara.Mayar da hankali da babban daki-daki waɗanda suka bayyana a sarari akan cikakkun bayanai na iya haifar da tawadar tawadar.Canza wurin mayar da hankali kaɗan kaɗan na iya canza tsabta, don haka yana taimakawa wajen kawar da tawadar tawadar.
4. Canja tsayin mai da hankali na ruwan tabarau.Za'a iya amfani da ruwan tabarau daban-daban ko saitunan tsayin tsayin daka don kawar da ko rage ripple.
An shirya allon nunin LED ta hanyar firikwensin haske masu zaman kansu, kuma akwai bayyane wuraren baƙar fata tsakanin pixels.Nemo hanyar da za a juya yankin baƙar fata mara haske zuwa wuri mai haske, da rage bambancin haske tare da firikwensin haske masu zaman kansu, waɗanda ke iya ragewa ko ma kawar da moire.
(5) Shin akwai hanyar da za a juya yankin baƙar fata mara haske zuwa wuri mai haske akan nunin LED?
Tsarin marufi na COB LED nuni, yana da sauƙin yin wannan.Idan muna da damar da za mu saka LED nuni na COB tare da LED nuni na SMD, za mu iya samun sauƙin samun cewa: LED nuni na COB fitar da taushi haske kamar surface haske tushen, yayin da LED nuni na SMD a fili ji cewa. barbashi masu haske maki ne masu haske masu zaman kansu.Ana iya gani daga Hoto na 3 cewa hanyar rufe marufi na COB ya bambanta da na SMD.Hanyar hatimin marufi na COB shine gabaɗayan saman firikwensin haske masu fitar da haske tare.Hanyar rufe marufi na SMD pixel ne mai haske guda ɗaya, wanda shine madaidaicin haske.
MPLED na iya ba ku nunin LED na tsarin marufi na COB, kuma samfuran mu na ST Pro na iya samar da irin waɗannan hanyoyin.Allon nunin LED wanda aka kammala ta tsarin marufi na cob yana da ƙaramin tazara, mafi bayyananni kuma mafi ƙarancin hoton nuni.Ana tattara guntu mai fitar da haske kai tsaye a kan allon PCB, kuma ana tarwatsa zafin kai tsaye ta cikin allon.Ƙimar juriya na thermal yana da ƙananan, kuma zafin zafi ya fi karfi.Hasken saman yana fitar da haske.Kyau mafi kyau.
Kammalawa: Yadda za a kawar da ko rage moire akan nunin LED?
1. Daidaita kusurwar harbi kamara, matsayi, saitin mayar da hankali da tsayin hangen nesa na ruwan tabarau.
2. Yi amfani da kyamarar fim na gargajiya, kyamarar dijital tare da firikwensin mitar sarari, ko kyamarar dijital tare da matattara mai ƙarancin wucewa.
3. LED nuni allon a COB marufi form aka zaba.
Lokacin aikawa: Nuwamba-04-2022
