OLED display panel

US12376449B2 · kind B2 · utility

Assignee

• Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. · CN

Inventors

• Zhijun Wan · Tangxia, CN
• Jinchuan Li · Nanhu, CN
• Weiran Cao · Longbeilingcun, CN

Key dates

• Filing date: Oct 27, 2022
• Grant date: Jul 29, 2025
• Expiry date: Feb 6, 2044

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/00

Abstract

An OLED display panel comprises an overlapping area, and further includes a driving circuit layer, a light-emitting functional layer, a cathode layer, and a conductive layer. In the overlapping area, a terminal of the driving circuit layer, a first conductive layer and a second conductive layer of the conductive layer, an electron transport layer and an electron injection layer of the light-emitting functional layer, and the cathode layer are disposed sequentially from bottom to top. The first conductive layer includes a plurality of protrusions. Each of the electron transport layer and the electron injection layer is disconnected at the protrusions, and the cathode layer is in contact with the protrusions.