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:
Jul. 07, 2020
Filed:
Jun. 20, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Ordos Yuansheng Optoelectronics Co., Ltd., Ordos, CN;
Ang Xiao, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., Inner Mongolia, CN;
Abstract
The present disclosure provides an organic light-emitting diode (OLED) device, comprising at least two electron transport layers between a cathode and a light-emitting layer of the device, wherein energy barrier of different electron transport layers successively increase from the cathode to the light-emitting layer. The present disclosure also provides an evaporation equipment and an OLED device manufacturing method, wherein the electron transport layers of the OLED device are formed by an evaporation process using the evaporation equipment. The OLED device of the present disclosure improves the luminescence efficiency of OLED devices, and the evaporation equipment can readily effect a fast switching between different evaporation rates within a same evaporation chamber.