Si loo gaaro saamaynta ugu wanaagsan ee soo bandhigista, muraayadaha tayada sare leh ee LED-yada guud ahaan waxay u baahan yihiin in lagu qiyaaso iftiinka iyo midabka, si iftiinka iyo midabka midabka ee muraayadda muraayadda LED ka dib iftiiminta ay u gaari karto sida ugu fiican.Haddaba maxay tahay sababta muraayadda soo-bandhigidda LED-ka ee tayada sare leh loogu baahan yahay in la habeeyo, sideese loogu baahan yahay in la cabbiro?
Qayb1
Marka hore, waxaa lagama maarmaan ah in la fahmo sifooyinka aasaasiga ah ee aragtida indhaha bini'aadamka ee iftiinka.Iftiinka dhabta ah ee ay arkaan isha bini'aadamku xidhiidh toos ah kuma xidhna dhalaalka uu soo saaro aShaashadda LED-ka, laakiin halkii xidhiidh aan toos ahayn.
Tusaale ahaan, marka isha bini'aadamku ay eegaan shaashadda LED-ka oo leh dhalaal dhab ah oo 1000nit ah, waxaan hoos u dhignaa dhalaalka ilaa 500nit, taasoo keentay in 50% hoos u dhaco dhalaalka dhabta ah.Si kastaba ha ahaatee, dhalaalka la dareemayo ee isha bini'aadamku si toos ah hoos uguma dhimin 50%, laakiin kaliya 73%.
Qallooca aan toos ahayn ee u dhexeeya iftiinka la dareemayo ee isha bini'aadamka iyo dhalaalka dhabta ah ee shaashadda LED-ka waxaa loo yaqaan qalooca gamma (sida ku cad sawirka 1).Laga soo bilaabo qalooca gamma, waxaa laga arki karaa in aragtida isbeddelka dhalaalka ee isha bini'aadamku ay tahay mid caqli-gal ah, iyo baaxadda dhabta ah ee isbeddelka dhalaalka ee bandhigyada LED ma aha mid joogto ah.
Qayb2
Marka xigta, aan wax ka baranno sifooyinka isbeddelka aragtida midabka ee isha aadanaha.Jaantuska 2 waa jaantuska chromaticity CIE, halkaasoo midabada lagu matali karo iskuduwayaasha midabka ama hirarka iftiinka.Tusaale ahaan, mawjadda dhererka shaashadda caadiga ah ee LED waa 620 nanometer oo loogu talagalay LED-cas, 525 nanometer ee LED-cagaaran, iyo 470 nanometer oo loogu talagalay LED buluug ah.
Guud ahaan, meel bannaan oo midab lebis ah, dulqaadka isha bini'aadamka ee kala duwanaanshaha midabka waa Δ Euv=3, oo sidoo kale loo yaqaan faraqa midabka muuqaal ahaan la dareemi karo.Marka farqiga midabka ee u dhexeeya LED-yada uu ka yar yahay qiimahan, waxaa loo tixgeliyaa in farqiga uusan ahayn mid muhiim ah.Marka Δ Euv>6, waxay muujinaysaa in isha bini'aadamku ay gartaan farqi midab daran oo u dhexeeya laba midab.
Ama waxaa la aaminsan yahay in marka faraqa mawjadda dhererka uu ka badan yahay 2-3 nanometer, in isha bini'aadamku dareemi karto faraqa midabka, laakiin dareenka isha bani'aadamka ee midabada kala duwan ayaa weli kala duwan, farqiga mawjadda dhererka ee ay ogaan karto isha bini'aadamka. waayo midabo kala duwan ma go'an.
Marka la eego qaabka kala duwanaanta iftiinka iyo midabka ee isha bini'aadamka, muraayadaha LED-yada waxay u baahan yihiin inay xakameeyaan kala duwanaanshaha dhalaalka iyo midabka inta u dhexeysa xadka ay isha bini'aadamku garan karin, si ay isha bini'aadamku u dareemo joogtayn wanaagsan oo dhalaal ah iyo midabka markaad daawato shaashadaha LED-ka.Iftiinka iyo midabka kala duwan ee aaladaha baakadaha LED ama chips-ka LED-ka ee loo isticmaalo shaashadaha LED-ka ayaa saameyn weyn ku leh joogteynta bandhigga.
Qayb3
Marka la samaynayo shaashadaha LED-ka, aaladaha baakadaha LED ee leh dhalaalka iyo hirarka dhererka go'an ayaa la dooran karaa.Tusaale ahaan, aaladaha LED ee leh dhererka dhalaalka gudaha 10% -20% iyo dhererka dhererka dhererka 3 nanometer ayaa loo dooran karaa wax soo saarka.
Doorashada aaladaha LED-ka oo leh kala duwanaansho cidhiidhi ah oo dhalaal ah iyo mawjadaha dhererka ayaa asal ahaan hubin kara joogteynta shaashadda bandhigga waxayna gaari kartaa natiijooyin wanaagsan.
Si kastaba ha noqotee, kala duwanaanshaha iftiinka iyo dhererka dhererka aaladaha baakadaha LED-ka ee sida caadiga ah loo isticmaalo shaashadaha LED-yada ayaa laga yaabaa inay ka weynaadaan cabbirka ugu habboon ee aan kor ku soo xusnay, taas oo keeni karta kala duwanaansho dhalaal iyo midab ah chips-ka iftiimiya LED-ka oo la arki karo indhaha aadanaha. .
Xaalad kale ayaa ah baakadaha COB, in kasta oo dhalaalka soo socda iyo dhererka mawjadaha iftiinka iftiinka LED lagu xakameyn karo inta ugu habboon, waxay sidoo kale u horseedi kartaa dhalaal iyo midab aan iswaafaqayn.
Si loo xalliyo iswaafaq la'aantan shaashadaha LED-ka oo loo wanaajiyo tayada bandhigga, tignoolajiyada saxitaanka dhibic-dhibcaha ayaa la isticmaali karaa.
Qodob ku saxid
Sixitaan dhibic-dhibceed waa habka ururinta xogta dhalaalka iyo chromaticity ee pixel-hoosaad kasta oo ku yaal aShaashadda LED-ka, Bixinta isku-xirnaanta sixitaanka ee mid kasta oo ka mid ah pixel sub, iyo dib u quudinta nidaamka xakamaynta ee shaashadda bandhigga.Nidaamka xakamaynta ayaa quseeya iskuxirayaasha sixitaanka si uu u wado kala duwanaanshiyaha mid kasta oo ka mid ah pixel-ka hoose, si loo hagaajiyo isku midka ah ee dhalaalka iyo chromaticity iyo daacadnimada midabka shaashadda bandhigga.
Soo koobid
Aragtida isbeddelka dhalaalka ee chips LED by isha bini'aadamku waxay muujinaysaa xidhiidh aan toos ahayn oo leh isbeddellada dhalaalka dhabta ah ee chips LED.Qalloocaan waxaa loo yaqaan qalooca gamma.Dareenka isha bini'aadamka ee mawjadaha dhererka kala duwan ee midabku waa kala duwan yahay, muraayadaha LED-yada waxay leeyihiin saameyn muuqaal ah oo wanaagsan.Iftiinka iyo kala duwanaanta midabka shaashadda shaashadda waa in lagu xakameeyaa ilaa xad aysan isha bini'aadamku aqoonsan karin, si muraayadaha LED-ku u muujiyaan joogteynta wanaagsan.
Iftiinka iyo dhererka hirarka aaladaha baakadaysan ee LED ama Chips-ka-ciyaaraha iftiiminaya ee COB waxay leeyihiin tiro go'an.Si loo hubiyo joogteynta wanaagsan ee shaashadaha LED-ka, tignoolajiyada sixitaanka dhibic-dhibcaha waxaa loo isticmaali karaa si loo gaaro dhalaal joogto ah iyo chromaticity ee shaashadaha bandhiga LED-ga oo tayo sare leh iyo hagaajinta tayada bandhigga.
Waqtiga boostada: Mar-11-2024
