LED gajere ne don Haske Emitting Diode.LED yana fitar da haske sakamakon hasken lantarki.Ana kuma san shi da “haske mai sanyi” kamar yadda, ba kamar yadda tsoffin fitilun fitilu ba, ba a samar da hasken ta dumama filament na ƙarfe.Diode, a gefe guda, yana fitar da haske lokacin da yake gudana ta cikin na'urorin siliki guda biyu na musamman masu rufi.Yana daya daga cikin hanyoyin da za a iya amfani da makamashi da makamashi don samar da haske.
LED yana ƙunshe da ƙaƙƙarfan kayan aiki ba tare da sassa masu motsi ba kuma galibi ana ƙera shi zuwa filastik bayyananne.Wannan yana tabbatar da tsayin daka.Lokacin da LED ke kunne, yana fitar da kusan zafi.Wannan yana rage matsalar sanyaya sassan lantarki.
An kirkiro LED na farko ta hanyar mai kirkiro na Rasha Oleg Losev a cikin 1927. Shekaru da yawa, yana yiwuwa ne kawai don samar da infrared, ja da rawaya LEDs.An samo waɗannan diodes a cikin komai daga na'urori masu ramut zuwa rediyon agogo.
Sai a shekarar 1994 masanin kimiya na kasar Japan Shuji Nakamura ya iya nuna ingantacciyar LED mai launin shudi.Ba da daɗewa ba LEDs masu launin fari da kore suka biyo baya, suna aza harsashin juyin juya halin LED da muka gani a cikin haske da fasahar nuni.
YAYA LED NUNA AIKI?
Nunin LED ya ƙunshi LEDs masu sarari da yawa.Ta hanyar bambanta haske na kowane LED, diodes tare suna samar da hoto akan nunin.
Don ƙirƙirar hoto mai launi mai haske, ana amfani da ka'idodin haɗakar launi mai ƙari, ta yadda ake ƙirƙirar sabbin launuka ta hanyar haɗa haske a cikin launuka daban-daban.Nunin LED ya ƙunshi LEDs ja, koren kore da shuɗi waɗanda aka ɗora su cikin ƙayyadaddun tsari.Waɗannan launuka uku sun haɗu don samar da pixel.Ta hanyar daidaita ƙarfin diodes, ana iya samar da biliyoyin launuka.Lokacin da kuka kalli allon LED daga ɗan nesa, ana ganin tsararrun pixels masu launi azaman hoto.
MENENE RGB?
RGB gajere ne don Red, Green da Blue.Tsarin launi ne wanda ke amfani da gaskiyar cewa duk launukan bayyaneza a iya gaurayewa daga waɗannan asali guda ukulaunuka.Ana amfani dashi a kusan kowane nau'in nuni, gami da nunin LED.
MENENE SMD?
SMD yana nufin Na'urar Dutsen Surface.Waɗannan kayan aikin lantarki ne waɗanda ke sama kai tsaye a kan allon da'ira - kuma ba kamar yadda aka saba ta hanyar sayar da fil ɗin ƙarfe a ƙarƙashin allon kewayawa ba.
A cikin fasahar nunin LED, ana amfani da ra'ayin SMD kaɗan kaɗan.Nuni na SMD nuni ne na LED inda aka sanya diodes ja, koren kore da shuɗi a cikin ƙaramin lulluɓin filastik wanda ke saman saman allon da aka buga na nunin.Lokacin da diodes aka lullube ta wannan hanyar, suna ɗaukar sarari da yawa, yana ba da damar samar da nuni tare da ƙarancin tazara tsakanin diodes da ƙuduri mafi girma.
WUTA NAWA AKE AMFANI DA WUTA?
LED fasaha ce mai inganci mai ƙarfi, don haka yaɗuwar amfani da kwararan fitila masu ceton kuzari a yau.Adadin ikon diodes a cikin nunin nunin LED ya dogara da nau'in nuni, haske da amfani.
Akwai nau'ikan LED da nuni da yawa.Yin amfani da wutar lantarki na nuni na cikin gida, alal misali, zai bambanta da alamar dijital ta waje, wanda dole ne a gani a cikin hasken rana kai tsaye.Hasken nuni shima babban al'amari ne.Hotunan dole ne su kasance a sarari, amma dole ne hasken nunin ya shuɗe.Nunin LED na waje yana buƙatar ya yi haske sosai a cikin hasken rana fiye da lokacin da duhu ya faɗi.
Abin da aka nuna kuma yana da tasiri.LED yana nuna hotuna ta hanyar kunnawa da daidaita haske na diodes masu launi.Hoton fari gabaɗaya tare da baƙar rubutu zai buƙaci ƙarin haske mai haske - kuma mafi ƙarfi - fiye da farin rubutu akan bangon baki.
SAURAN NUNA LED YA KWANA?
Yana da wuya a faɗi takamaiman wani abu na musamman game da rayuwar nunin LED yayin da abubuwa da yawa ke shiga cikin wasa.Koyaya, tare da kulawa da kyau, nuni na iya ɗaukar fiye da shekaru goma.Kamar yadda yake tare da kowane nau'in na'urorin lantarki, tsawon rayuwa kuma yana shafar amfanin yau da kullun da yanayin da ke kewaye da nuni.Hotunan haske da babban matakin haske sun fi sawa akan nuni fiye da hotuna masu duhu da ƙananan haske.Abubuwa kamar zafi da gishiri a cikin iska kuma na iya shiga cikin wasa.
A tsawon rayuwar nunin LED, fitowar haske daga diodes zai ragu.Ta nawa ya dogara da nau'in da tsarar diodes.Yawancin nunin LED ba sa amfani da cikakken ƙarfin haskensu, don haka raguwa ba zai zama matsala ba.
MENENE PIXEL PITCH DA HUKUNCIN NUNA?
Nisa tsakanin diodes nunin LED yana ƙayyade ƙudurin nunin.Ana auna nisa zuwa tsakiyar ƙungiyar maƙwabta daga tsakiyar kowane rukuni na diode ja, kore da shuɗi.Ana san wannan nisa da pixel pitch.Kowane rukuni na diodes yana samar da pixel.
Idan nunin LED yana da farar pixel na 1 cm, za a iya samun pixels 100 x 100 a kowace murabba'in mita na nuni.Ana ba da ƙudurin nuni azaman lambobi biyu waɗanda ke nuna faɗi da tsayi a pixels.Idan kana da allon mita 6 x 8 tare da 1 cm a cikin pixel pitch, yana da ƙudurin 600 x 800 pixels.
Akwai allo na LED tare da farar pixel na ko'ina daga santimita da yawa zuwa millimita ɗaya.
WANE HUKUNCI ZAN ZABA?
Ƙaddamar da kuke buƙata don nunin LED ya dogara da nisa na kallo.Daga wane nisa masu sauraron ku za su kalli nunin?Idan kuna kusa da nunin LED mai ƙarancin ƙuduri (mai nisa tsakanin diodes), zai yi wahala ganin abin da ke kan nunin.
Yawanci akwai haɗi tsakanin ƙudurin nuni da farashi.Mafi girman ƙuduri, yawancin diodes akwai kowane m2 - sabili da haka farashin m2 mafi girma.
Idan kuna shigar da alamar dijital ta babbar hanya ko a kan facade na gini, za a gan shi daga wani ɗan nesa.A nan, babban nuni zai zama ba dole ba - kuma mai tsada ba dole ba.Idan nuni ne a matakin bene a tsakiyar kantin sayar da kayayyaki, masu sauraro za su matso kusa da shi.Anan, babban nuni yana aiki mafi kyau.
Kyakkyawan ƙa'idar babban yatsan yatsa don nunin LED shine: 1 mm pixel pitch don kowace mita na nisa na kallo.
Lokacin aikawa: Afrilu-05-2021