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:
Jun. 30, 2020
Filed:
May. 12, 2017
Shanghai Tianma Am-oled Co., Ltd., Shanghai, CN;
Tianma Micro-electronics Co., Ltd., Shenzhen, CN;
Xiangcheng Wang, Shanghai, CN;
Jinghua Niu, Shanghai, CN;
Wei He, Shanghai, CN;
Yuji Hamada, Shanghai, CN;
Chen Liu, Shanghai, CN;
Honggang Yan, Shanghai, CN;
SHANGHAI TIANMA AM-OLED CO., LTD., Shanghai, CN;
TIANMA MICRO-ELECTRONICS CO., LTD., Shenzhen, CN;
Abstract
An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The OLED display panel comprises a first substrate; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a hole transport layer disposed on a surface of the first electrode layer far away from the first substrate, and formed by a first hole transport material and a second hole transport material having different carrier mobility; a plurality of light-emitting devices disposed on a surface of the hole transport layer far away from the first electrode layer and arranged in correspondence with the plurality of first electrodes respectively; an electron transport layer disposed on a surface of the plurality of light-emitting devices far away from the hole transport layer; and a second electrode layer disposed on a surface of the electron transport layer far away from the plurality of light-emitting devices.