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. 09, 2025
Filed:
Apr. 15, 2022
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Shijian Qin, Guangdong, CN;
Xiaotong Chen, Guangdong, CN;
Abstract
An organic light emitting diode (OLED) display panel includes a substrate, a thin film transistor (TFT) layer, a planarization layer, and a pixel definition layer which are arranged in sequence. The planarization layer is provided with first via holes, and the pixel definition layer is provided with second via holes and a through hole. Each first via holes communicates with one of the second via holes. The OLED display panel further includes a light-emitting device layer. The light-emitting device layer includes an anode, a light-emitting layer, and a cathode sequentially arranged on one side of the planarization layer. The light-emitting layer is arranged in the through hole. The cathode covers the pixel definition layer, the first via hole, the second via hole, and the light-emitting layer.