Muujinta LED-ku waa aalad u adeegsata diodes-ka-fure (LEDs) oo ah walxo iftiimiya si ay ugu soo bandhigaan garaafyada, fiidiyowyada, animations iyo macluumaadka kale iyada oo loo marayo shaashadaha elektaroonigga ah. Bandhiga LED-ku wuxuu leeyahay faa'iidooyinka dhalaalka sare, isticmaalka tamarta hooseeya, nolosha dheer, xagasha daawashada ballaaran, iwm. Si loo hubiyo saamaynta soo-bandhigidda iyo waxtarka tamarta-badbaadinta ee shaashadda shaashadda LED-ka, waa lagama maarmaan in si macquul ah loo xisaabiyo aagga shaashadda iyo iftiinka.
1. Habka xisaabinta aagga shaashadda ee shaashadda LED-ka
Aagga shaashadda ee bandhigga LED wuxuu tixraacayaa cabbirka aagga bandhigiisa waxtarka leh, badanaa mitir labajibbaaran. Si loo xisaabiyo aagga shaashadda ee bandhigga LED, cabbirrada soo socda ayaa loo baahan yahay in la ogaado:
1. Fogaanta dhibicda: fogaanta dhexe ee u dhaxaysa pixels kasta iyo pixels ku xiga, badiyaa millimitir. Inta yar ee dhibicda dhibicda, ayaa sare u kaca cufnaanta pixel, sare u kaca xallinta, ayaa caddaynaysa saamaynta bandhigga, laakiin qiimaha sarreeya. Meesha dhibicda guud ahaan waxaa loo go'aamiyaa iyadoo loo eegayo xaaladda dhabta ah ee codsiga iyo fogaanta daawashada.
2. Module size: module kasta ka kooban yahay dhowr pixels, taas oo ah unugga aasaasiga ah ee bandhiga LED. Cabbirka cutubka waxaa lagu go'aamiyaa tirada pixels jiifka iyo toosan, badiyaa sentimitir. Tusaale ahaan, moduleka P10 wuxuu ka dhigan yahay in module kasta uu leeyahay 10 pixels oo siman iyo toosan, taas oo ah, 32×16=512 pixels, cabbirka modulekuna waa 32×16×0.1=51.2 sentimitir labajibbaaran.
3. Cabbirka Shaashadda: Shaashadda LED-ka oo dhan waxa ay u kala qaybsan tahay dhawr qaybood, cabbirkeedana waxa lagu go’aamiyaa tirada qaybo toosan iyo mid toosan, oo badiyaa mitir ah. Tusaale ahaan, muraayadda midabka buuxa ee P10 oo dhererkeedu yahay 5 mitir iyo dhererka 3 mitir waxay ka dhigan tahay in ay jiraan 50/0.32=156 modules ee jihada toosan iyo 30/0.16=187 modules ee jihada toosan.
2. Habka xisaabinta dhalaalka muraayadda LED
Iftiiminta muraayadda LED-ku waxa ay tilmaamaysaa xoogga iftiinka uu ku sii daayo xaalado gaar ah, sida caadiga ah candela halkii mitir labajibbaaran (cd/m2). Mar kasta oo uu dhalaalku sareeyo, iftiinku wuu sii xoogaysanayaa, waa uu ka duwan yahay, waana sii xoogaysanayaa awoodda ka hortagga faragelinta. Iftiinka guud ahaan waxaa lagu go'aamiyaa iyadoo loo eegayo jawiga codsiga dhabta ah iyo xagasha daawashada.
1. Iftiinka hal nal oo LED ah: xoogga iftiinka uu ka soo baxo nalka midab kasta oo LED ah, oo badanaa ku jira millicandela (mcd). Iftiiminta hal nalka LED waxaa lagu go'aamiyaa qalabkiisa, habka, hadda iyo arrimo kale, iftiinka nalalka LED ee midabada kala duwan ayaa sidoo kale ka duwan. Tusaale ahaan, dhalaalka nalalka LED-ka ee cas guud ahaan waa 800-1000mcd, dhalaalka nalalka cagaaran ee LED guud ahaan waa 2000-3000mcd, dhalaalka nalalka buluuga ah guud ahaan waa 300-500mcd.
2. Iftiinka pixel kasta: Pixel kastaa waxa uu ka kooban yahay dhawr nalal oo LED ah oo midabo kala duwan leh, xoogga iftiinka uu ka soo baxayaa waa wadarta dhalaalka midab kasta oo iftiinka LED ah, sida caadiga ah candela (cd) oo ah unugga. Iftiinka pixel kasta waxaa lagu go'aamiyaa halabuurka iyo saamiga, iyo dhalaalka pixel kasta ee noocyada kala duwan ee bandhigyada LED sidoo kale waa ka duwan yahay. Tusaale ahaan, pixel kasta ee shaashadda midabka buuxa ee P16 wuxuu ka kooban yahay 2 casaan, 1 cagaaran, iyo 1 nalal buluug ah. Haddii 800mcd cas, 2300mcd cagaaran, iyo 350mcd nalalka buluuga ah ee LED la isticmaalo, dhalaalka pixel kasta waa (800×2 +2300+350)=4250mcd=4.25cd.
3. Iftiinka guud ee shaashadda: xoogga iftiinka ee ka soo baxaya dhammaan bandhigga LED-ka waa wadarta dhalaalka dhammaan pixels oo loo qaybiyo aagga shaashadda, badiyaa candela halkii mitir labajibbaaran (cd/m2) oo ah unugga. Iftiinka guud ee shaashadda waxaa lagu go'aamiyaa xallintiisa, qaabka iskaanka, wadista hadda iyo arrimo kale. Noocyada kala duwan ee muraayadaha bandhiga LED waxay leeyihiin dhalaal guud oo kala duwan. Tusaale ahaan, xallinta labajibbaaran ee shaashadda midabka buuxa ee P16 waa 3906 DOT, habka sawir-qaadashaduna waa 1/4 iskaanka, markaa dhalaalkeeda ugu sarreeya ee aragtida waa (4.25×3906/4)=4138.625 cd/m2.
3. Kooban
Maqaalkani waxa uu soo bandhigayaa habka xisaabinta aagga iyo dhalaalka muraayadda LED-ka, wuxuuna siinayaa qaababka iyo tusaalooyinka u dhigma. Iyadoo loo marayo hababkan, cabbirada bandhiga LED ee ku habboon ayaa lagu dooran karaa iyadoo loo eegayo baahiyaha iyo xaaladaha dhabta ah, iyo saameynta bandhigga iyo waxtarka tamarta-badbaadinta ayaa la hagaajin karaa. Dabcan, codsiyada la taaban karo, arrimo kale ayaa loo baahan yahay in la tixgeliyo, sida saameynta iftiinka iftiinka, heerkulka iyo qoyaanka, kuleylka kuleylka, iwm. ee waxqabadka iyo nolosha bandhigga LED.
Muujinta LED-ku waa kaadhka ganacsi ee quruxda badan ee bulshada maanta. Ma soo bandhigi karto oo kaliya macluumaadka, laakiin sidoo kale gudbin kartaa dhaqanka, abuurista jawi iyo kor u qaadida sawirka. Si kastaba ha noqotee, si loo helo saameynta ugu badan ee bandhigga LED-ka, waxaa lagama maarmaan ah in la barto hababka xisaabinta aasaasiga ah, si macquul ah loo naqshadeeyo oo loo doorto goobta shaashadda iyo iftiinka. Sidan oo kaliya ayaan ku xaqiijin karnaa soo bandhigid cad, badbaadinta tamarta, ilaalinta deegaanka, adkeysiga iyo dhaqaalaha.
Waqtiga boostada: Agoosto-24-2023
