Display panel and display device with cathode layer having irregularly-shaped edge

US12041804B2 · kind B2 · utility

Assignee

• Xiamen Tianma Micro-Electronics Co., Ltd. · CN

Inventors

• Yu Xin · Nanhu, CN
• Lijing Han · 红钢城街道, CN
• Bing Han · Nanhu, CN
• Zuhua Li · Shanghai, CN

Key dates

• Filing date: Apr 19, 2021
• Grant date: Jul 16, 2024
• Expiry date: Sep 5, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/873

Abstract

A display panel with a display region and a non-display region includes a base substrate; a device layer, disposed on one side of the base substrate, covering the display region, and including a cathode layer; and an encapsulation part, arranged around the device layer in the non-display region and including a metal pad layer surrounding the cathode layer. The metal pad layer and the cathode layer are separated by a gap. The cathode layer has a first irregularly-shaped edge, including first deformed portions and second deformed portions that are alternately distributed. Each first deformed portion extends convexly in a direction toward the metal pad layer, and each second deformed portion extends concavely in a direction away from the metal pad layer. In an extending direction of the first irregularly-shaped edge, a length of the first deformed portion is less than or equal to a length of the second deformed portion.