20250221243. Light Emitting Eleme (Samsung Display ., .)
LIGHT EMITTING ELEMENT AND DISPLAY DEVICE INCLUDING THE SAME
Abstract: a light emitting element includes a first electrode, a light emitting structure disposed on the first electrode and including an emission layer, a second electrode disposed on the light emitting structure and including silver (ag) and a metal dopant, and a capping layer directly disposed on the second electrode. an average volume ratio of the metal dopant in the second electrode is less than or equal to about 30%, and a volume ratio of the metal dopant in a region adjacent to the capping layer is less than the average volume ratio of the metal dopant in the second electrode, and thus both maintaining excellent electrical and optical properties and having improved reliability.
Inventor(s): HWI KIM, JUNGSUN PARK, JI-HEE SON, SEOULKI LEE, SEUNGJUN LEE, AREUM LEE, YEONHWA LEE, JOONGU LEE
CPC Classification: H10K59/80524 (ORGANIC ELECTRIC SOLID-STATE DEVICES)
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