YINTONI i-LED?

I-LED imfutshane kwi-Light Emitting Diode.I-LED ikhupha ukukhanya ngenxa ye-luminescence yombane.Kwaziwa nangokuthi "ukukhanya okubandayo" njengoko, ngokungafaniyo ne-incandescent bulbs yakudala, ukukhanya akwenziwa ngokufudumeza i-filament yensimbi.I-diode, kwelinye icala, ikhupha ukukhanya xa ihamba ngee-silicon semiconductors ezimbini ezigqunywe ngokukodwa.Yenye yeendlela ezonga amandla kunye nezonga amandla okuvelisa ukukhanya.

I-LED iqulethe izinto eziqinileyo ezingenazo iindawo ezihambayo kwaye zihlala zibunjwa zibe yiplastiki ebonakalayo.Oku kuqinisekisa ukuqina okuphezulu.Xa i-LED ilayitiwe, ikhupha phantse iqanda lobushushu.Oku kunciphisa ingxaki yokupholisa iindawo ze-elektroniki.

I-LED yokuqala yenziwa ngumqambi waseRashiya u-Oleg Losev ngo-1927. Kwiminyaka emininzi, kwakunokwenzeka kuphela ukuvelisa ii-LED ze-infrared, ezibomvu kunye nephuzi.Ezi diode zifunyenwe kuyo yonke into ukusuka kulawulo olukude ukuya koonomathotholo bewotshi.

Kwakungekho kude kube yi-1994 ukuba isazinzulu saseJapan uShuji Nakamura wakwazi ukubonisa i-LED eluhlaza okwesibhakabhaka.Ii-LED ezimhlophe neziluhlaza zalandela ngokukhawuleza, zibeka isiseko sohlaziyo lwe-LED esilubonile ekukhanyiseni nasekuboniseni iteknoloji.

ISEBENZA NJANI UMBONO WE-LED?

Umboniso we-LED uquka ii-LED ezininzi ezisondeleleneyo.Ngokwahluka kokukhanya kwe-LED nganye, iidiode ngokudibeneyo zenza umfanekiso kwisiboniso.

Ukudala umfanekiso wombala oqaqambileyo, imigaqo yokudibanisa umbala owongezelelweyo isetyenziswa, apho imibala emitsha idalwe ngokuxuba ukukhanya kwimibala eyahlukeneyo.Umboniso we-LED uquka ii-LED ezibomvu, eziluhlaza kunye neblue ezifakwe kwipatheni esisigxina.Le mibala mithathu idibanisa ukwenza ipixel.Ngokuhlengahlengisa ukuqina kweediode, iibhiliyoni zemibala zinokuqulunqwa.Xa ujonga isikrini se-LED kumgama othile, uluhlu lweepikseli ezinemibala lubonwa njengomfanekiso.

YINTONI iRGB?

I-RGB imfutshane ku-Red, Green and Blue.Luyilo lombala osebenzisa into yokuba yonke imibala ebonakalayoinokuxutywa kwezi zintathu zisisisekoimibala.Isetyenziswa phantse kuzo zonke iintlobo zemiboniso, kubandakanywa iziboniso ze-LED.

YINTONI i-SMD?

I-SMD ithetha i-Surface Mount Device.Ezi zixhobo ze-elektroniki ezibekwe phezulu ngokuthe ngqo kwibhodi yesekethe eprintiweyo - kwaye kungekhona njengangaphambili ngokuthengisa intsimbi yentsimbi phantsi kwebhodi yesekethe.

Kwiteknoloji yokubonisa i-LED, ingcamango ye-SMD isetyenziswe ngokungafaniyo.Umboniso we-SMD ngumboniso we-LED apho ii-diode ezibomvu, eziluhlaza kunye ne-blue zifakwe kwi-encapsulation encinci yeplastiki ebekwe phezulu kwiibhodi zesekethe eziprintiweyo zomboniso.Xa iidiode zifakwe ngolu hlobo, zithatha indawo encinci kakhulu, okwenza kube lula ukuvelisa iziboniso kunye nesithuba esincinci phakathi kweediode kunye nesisombululo esiphezulu.

MANGAKANI AMANDLA OMBONISO WELED ESEBENZAYO?

I-LED iteknoloji eyonga amandla kakhulu, kungoko ukusetyenziswa ngokubanzi kweebhalbhu ze-LED ezonga amandla namhlanje.Ubungakanani bamandla e-diode ekusetyenzisweni kwesiboniso se-LED kuxhomekeke kuhlobo lwesiboniso, ukukhanya kunye nokusetyenziswa.

Kukho iintlobo ezininzi zee-LED kunye neziboniso.Ukusetyenziswa kwamandla okubonisa kwangaphakathi, umzekelo, kuya kuhluka kwisibonakaliso sangaphandle sedijithali, esimele sibonakale ekukhanyeni kwelanga.Ukuqaqamba komboniso nako kungumba ophambili.Imifanekiso kufuneka icace, kodwa ukukhanya okuvela kwisiboniso akufuneki kukhazimle.Isiboniso se-LED sangaphandle kufuneka sikhanye ngakumbi emini kunaxa kungena ubumnyama.

Into eboniswayo nayo inefuthe.I-LED ibonisa imifanekiso ngokuvula kunye nokulungelelanisa ukukhanya kweediode ezinemibala.Umfanekiso omhlophe ngokupheleleyo onombhalo omnyama ke ngoko uya kufuna iidiode ezininzi ezikhanyayo - kunye namandla angaphezulu kakhulu - kunombhalo omhlophe kwimvelaphi emnyama.

INDLELA YOKUBONISWA KWE-LED INDLELA YOKUBONISA I-LED?

Kunzima ukuthetha nantoni na ethile malunga nobomi bomboniso we-LED njengoko zininzi izinto eziza kudlala.Nangona kunjalo, ngokugcinwa okufanelekileyo, umboniso unokuhlala iminyaka engaphezu kweshumi.Njengazo zonke iintlobo zombane, ixesha lokuphila likwachatshazelwa kusetyenziso lwemihla ngemihla kunye nokusingqongileyo okujikeleze isiboniso.Imifanekiso ekhanyayo kunye nomgangatho ophezulu wokukhanya unxibe ngakumbi kwisiboniso kunemifanekiso emnyama kunye nezinga eliphantsi lokukhanya.Izinto ezifana nokufuma kunye nesiqulatho setyuwa esemoyeni nazo zinokungena.

Ebudeni bobomi bomboniso we-LED, ukukhanya okuvela kwiidiode kuya kuncipha.Ngokungakanani kuxhomekeke kuhlobo kunye nesizukulwana se-diode.Uninzi lweziboniso ze-LED azize zisebenzise ukukhanya kwazo okugcweleyo, ngoko ke ukunciphisa akuyi kuba yingxaki.

YINTONI I-PIXEL PITCH KUNYE NE-DISPLAY ISIGQIBO?

Umgama phakathi kweediode zesibonisi se-LED umisela isisombululo sesiboniso.Umgama oya kumbindi weqela elingummelwane ulinganiswa ukusuka kumbindi weqela ngalinye lee-diode ezibomvu, eziluhlaza kunye neziluhlaza.Lo mgama waziwa ngokuba yipixel pitch.Iqela ngalinye leediode lenza ipixel.

Ukuba isiboniso se-LED sinobude bepixel obuyi-1 cm, kusenokubakho i-100 x 100 pixels nge square meter yokubonisa.Isisombululo somboniso sinikezelwa njengepere yamanani abonisa ububanzi kunye nobude kwiipikseli.Ukuba unesikrini se-6 x 8-mitha kunye ne-1 cm kwiphikseli pitch, sinesisombululo sama-600 x 800 pixels.

Kukho izikrini ze-LED ezinepixel pitch naphi na ukusuka kwiisentimitha ezininzi ukuya kwimilimitha enye.

ESIPHI ISIGQIBO EMANDIMELE NDISIKHETHE?

Isisombululo osidingayo kwisiboniso se-LED sixhomekeke kumgama wokujonga.Abaphulaphuli bakho baya kuwubukela umgama ongakanani umboniso?Ukuba ukufutshane nesiboniso se-LED esinesisombululo esisezantsi (kude phakathi kweediode), kuya kuba nzima ukubona into ekumboniso.

Kukho unxibelelwano phakathi kwesisombululo somboniso kunye nexabiso.Ukuphakama kwesisombululo, kukho iidiode ezininzi nge-m2 - kwaye ngoko ixabiso eliphezulu le-m2.

Ukuba ufaka uphawu lwedijithali kwindlela enkulu okanye kwi-facade yesakhiwo, kuya kubonakala kumgama othile.Apha, umboniso ophakamileyo ophezulu awuyi kuba yimfuneko - kwaye ubiza ngokungeyomfuneko.Ukuba ngumboniso okumgangatho ophakathi kwivenkile yesebe, abaphulaphuli baya kusondela ngakumbi kuyo.Apha, isiboniso esiphezulu sisebenza kakuhle.

Umgaqo olungileyo wokuboniswa kwe-LED ngulo: 1 mm pixel pitch kwimitha nganye yomgama wokujonga.