US 12,336,382 B2
Organic device, display apparatus, image capturing apparatus, illumination apparatus, and moving body
Norifumi Kajimoto, Zama (JP); and Takayuki Ito, Kawasaki (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 15, 2022, as Appl. No. 17/812,804.
Application 17/812,804 is a division of application No. 16/857,494, filed on Apr. 24, 2020, granted, now 11,430,970.
Claims priority of application No. 2019-087724 (JP), filed on May 7, 2019.
Prior Publication US 2022/0359849 A1, Nov. 10, 2022
Int. Cl. H01L 51/52 (2006.01); F21K 9/68 (2016.01); H10F 39/00 (2025.01); H10K 50/818 (2023.01); H10K 50/852 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/852 (2023.02) [F21K 9/68 (2016.08); H10F 39/8067 (2025.01); H10K 50/818 (2023.02); H10K 59/351 (2023.02); H10K 59/38 (2023.02); H10K 2102/351 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An organic device comprising a reflective electrode configured to reflect light, an organic layer arranged on the reflective electrode, a semi-transmissive electrode arranged on the organic layer, and an interference adjustment layer arranged on the semi-transmissive electrode,
wherein the organic layer includes a light emitting layer configured to emit blue light,
wherein the interference adjustment layer includes a first layer in contact with the semi-transmissive electrode, a second layer arranged on the first layer, and a third layer arranged on the second layer,
wherein the first layer is made of an element selected from the group consisting of silicon nitride, silicon oxynitride, titanium oxide, zinc sulfide, and indium tin oxide,
wherein the second layer is made of an element selected from the group consisting of magnesium fluoride, lithium fluoride, a fluoropolymer, silver, magnesium, and combinations thereof,
wherein the third layer is made of an element selected from the group consisting of silicon oxide, silicon nitride, silicon oxynitride, and aluminum oxide,
wherein a film thickness of the organic layer is not less than 85 nm,
wherein a film thickness of the first layer is not more than 50 nm,
wherein a film thickness of the second layer is 10 nm to 300 nm,
wherein a resonant wavelength of the organic layer is 510 nm to 550 nm,
wherein a resonant wavelength of an optical distance between the organic layer and a reflection surface which is an interface between the first layer and the second layer is not more than 435 nm, and
wherein a minimum value of optical interference of the optical distance between the organic layer and the reflection layer is 480 nm to 510 nm.