The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2022
Filed:
Jul. 10, 2019
Gu'an Yeolight Technology Co., Ltd., Langfang, CN;
Yuhao Li, Langfang, CN;
Lixue Guo, Langfang, CN;
Jun Wang, Langfang, CN;
Jing Xie, Langfang, CN;
Yingguang Zhu, Langfang, CN;
Yonglan Hu, Langfang, CN;
GU'AN YEOLIGHT TECHNOLOGY CO., LTD., Langfang, CN;
Abstract
The organic light emitting device comprises a substrate, a first electrode, an organic layer, a second electrode and a packaging structure which are provided in sequence; the organic layer comprises a light-emitting layer, a hole transport functional layer and an electron transport functional layer located on two sides of the light-emitting layer; a high-energy light sacrificial layer is provided between an electrode corresponding to a light-emergent face of a light-emitting device and the light-emitting layer, and the high-energy light sacrificial layer contains a light absorbing material; a first additional functional layer for avoiding electroluminescence is provided between the high-energy light sacrificial layer and the light-emitting layer.