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:
Dec. 24, 2019
Filed:
Oct. 09, 2018
Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;
Xiaoxi Na, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
Xiangcheng Wang, Shanghai, CN;
Qing Zhu, Shanghai, CN;
Shuang Cheng, Shanghai, CN;
Lei Wen, Shanghai, CN;
Jun Lin, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
Abstract
Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having anode, cathode and organic functional layer. The organic functional layer includes an organic light-emitting layer, a first and second electron transmission layer and an electron injection layer. The first electron transmission layer and electron injection layer include a first dopant containing an alkaline earth metal element or a rare earth metal element. A work function φ1 of the electron injection layer and a work function φ2 of the cathode satisfy: φ1<φ2, and the work function φ1 of the electron injection layer and a work function φ3 of the first dopant satisfy: φ1≥φ3. LUMO1 and LUMO2 satisfy: |LUMO1−LUMO2|<0.18 eV.