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. 22, 2020
Filed:
Nov. 29, 2017
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, Guangdong, CN;
Ting Shi, Guangdong, CN;
Abstract
An ink-jet printing ink of an electron transport layer and its preparing method are provided. The method of the disclosure adopts an ionic conjugated polyelectrolyte as a solute and alcohol compounds as a solvent. By adjusting the proportion of each component, viscosity and surface tension to obtain an ink-jet printing ink of the electron transport layer. The ink-jet printing ink meets the manufacturing requirements and is able to be produced by ink-jet printing process. Simultaneously, it avoids a mutually soluble phenomenon occurred between the electron transport layer and the adjacent structural layers during the preparation of the OLED, which is favorable for the production of a full-solution OLED device. According to the above method, the disclosure satisfies the manufacturing requirements of the ink-jet printing and realizes the ink-jet printing type of the electron transport layer, and is favorable for the production of a full-solution OLED device.