I-OLED inokukhanya kwayo okuphezulu okukhupha ukukhanya, i-engile yokujonga ebanzi, impendulo ekhawulezayo, ukusetyenziswa kwamandla aphantsi, kwaye inokwenziwa izixhobo zokubonisa eziguquguqukayo, ithathwa njengethatha indawo yetekhnoloji yekristale yolwelo efanelekileyo kwisizukulwana esilandelayo setekhnoloji yokubonisa. Inxalenye ephambili yesiboniso se-OLED yi-sub-pixel nganye enokukwazi ukukhupha ukukhanya kwe-OLED. Ulwakhiwo olusisiseko lwe-OLED luquka i-anode, i-cathode, kunye ne-sandwiched phakathi komaleko osebenzayo okhupha ukukhanya, apho umaleko okhupha ukukhanya Ngokwemisebenzi yezixhobo ze-OLED kwisixhobo kunye nesakhiwo sesixhobo, unokwahlulwa njengomaleko we-hole injection (HIL), umaleko wokuthutha umngxuma (HTL), umaleko okhupha ukukhanya (EML) umaleko wokuthutha i-electron (ETL), umaleko we-electron injection (EIL) kunye nezinye izinto.
Kwii-OLED, umaleko wokujova umngxuma kunye nomaleko wokuthuthwa komngxuma zisetyenziselwa ukuphucula ukusebenza kakuhle kokujova kwemingxunya, ngelixa umaleko wokujova i-electron kunye nomaleko wokuthuthwa kwe-electron zisetyenziselwa ukuphucula ukusebenza kakuhle kokujova kwee-electron. Ezinye zezinto ezikhupha ukukhanya ngokwazo zinomsebenzi wokuthuthwa kwemingxunya okanye ukuthuthwa kwee-electron, ngokuqhelekileyo zibizwa ngokuba yi-main luminescent; umaleko wezinto ezikhupha ukukhanya kwinani elincinci ledayi ye-organic fluorescent okanye ye-phosphorescent efakwe i-doped inokufunyanwa kumzimba ophambili wokudluliselwa kwamandla, kwaye ngokubamba nokukhupha umbala owahlukileyo wokukhanya, izinto ezikhupha ukukhanya ezifakwe i-doped zihlala zibizwa ngokuba yi-guest luminescent okanye i-doped light-emitting body.
2. Imigaqo esisiseko yokukhupha ukukhanya kwesixhobo se-OLED
I-voltage ifakwa kwisixhobo se-OLED, kwaye imingxunya kunye nee-elektroni zifakwa kumaleko we-OLED ukusuka kwi-anode kunye ne-cathode yesixhobo, ngokwahlukeneyo. Imingxunya kunye nee-elektroni kwizixhobo ezikhupha ukukhanya kwendalo eziphilayo ziyadityaniswa kwaye zikhuphe amandla, kwaye ukudluliselwa kwamandla ongezelelweyo kudlulisa iimolekyuli zezinto ezikhupha ukukhanya kwendalo eziphilayo, ukuze zivuselelwe kwimeko evuselelwe, kwaye emva koko i-exciton ukusuka kwimeko evuselelwe ibuyele kwimeko yomhlaba, amandla ngendlela yokukhululwa, kwaye ekugqibeleni afezekise i-electroluminescence yesixhobo se-OLED.
Ngokubanzi, ifilimu ekwi-OLED ibandakanya ifilimu ye-electrode eqhubayo kunye nomaleko ngamnye wezinto ezikhupha ukukhanya kwendalo eziphilayo. Okwangoku, ii-anode zezixhobo ze-OLED eziye zafikelela kwimveliso enkulu zihlala zilungiswa kusetyenziswa iteknoloji yokunciphisa ulawulo lwemagnethi. Ii-cathodes kunye namaleko e-luminescent yendalo zihlala zilungiswa nge-vacuum evaporation.
——Eli nqaku likhutshwe nguumatshini wokugquma nge-vacuumGuangdong Zhenhua
Ixesha lokuthumela: Sep-22-2023