US 12,379,528 B2
Encapsulation structure, encapsulation method, electroluminescent device, and display device
Qingyu Huang, Beijing (CN); Wenqi Liu, Beijing (CN); Fudong Chen, Beijing (CN); and Zhiqiang Jiao, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/782,775
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 20, 2021, PCT No. PCT/CN2021/094929
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/238770, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010455274.5 (CN), filed on May 26, 2020.
Prior Publication US 2022/0407035 A1, Dec. 22, 2022
Int. Cl. G02B 5/00 (2006.01); H10K 50/82 (2023.01); H10K 50/844 (2023.01); H10K 50/85 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01); H10K 102/00 (2023.01)
CPC G02B 5/008 (2013.01) [H10K 50/82 (2023.02); H10K 50/844 (2023.02); H10K 50/8445 (2023.02); H10K 50/85 (2023.02); H10K 59/8731 (2023.02); H10K 59/879 (2023.02); H10K 71/00 (2023.02); H10K 2102/00 (2023.02); H10K 2102/3026 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
16. An electroluminescent device, comprising the encapsulation structure and a cathode layer;
wherein a first inorganic dielectric layer of the encapsulation structure is attached to a surface of the cathode layer,
the encapsulation structure which is applicable for encapsulating the electroluminescent device comprises:
a first inorganic dielectric layer provided with a surface for being attached to a surface of the cathode layer of the electroluminescent device; wherein
a dispersion relation among the first inorganic dielectric layer, the cathode layer and an electron injection layer of the electroluminescent device satisfies a preset condition, wherein the preset condition is configured to define an optical parameter of a first interface, the optical parameter is related to dispersion and is configured to couple surface plasmon polaritons (SPPs) on interfaces of two sides of the cathode layer, and the first interface is an interface between the first inorganic dielectric layer and the cathode layer.