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. 10, 2019
Filed:
May. 30, 2019
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Yunan Zhang, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The present invention provides a manufacturing method of an OLED display panel and an OLED display panel. The manufacturing method of the OLED display panel of the present invention utilizes an inverted OLED element and manufactures an interface modification layer between the cathode of the OLED element and the light emitting layer by ink jet printing with an interface modification printing liquid. The interface modification printing liquid comprises an electron transporting material, metal nanoparticles which are surface-modified, a surface tension modifier and a viscosity modifier. The interface modification layer is a material layer comprising the electron transporting material and the metal nanoparticles. The electron transporting material can enhance the injection and transport of carriers from the cathode. The strong local electric field generated by the metal nanoparticles with the surface plasma resonance can enhance the injection efficiency of the electrons.