Electroluminescent display substrate and manufacturing method thereof, display panel and display apparatus

US10978524B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Cuili Gai · Beijing, CN
• Yi-Cheng Lin · Jinshanmian, TW
• Pan Xu · Beijing, CN
• Baoxia Zhang · Beijing, CN
• Quanhu Li · Beijing, CN
• Ling Wang · Beijing, CN

Key dates

• Filing date: May 22, 2018
• Grant date: Apr 13, 2021
• Expiry date: Nov 30, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/8792

Abstract

An electroluminescent display substrate and a manufacturing method thereof, a display panel and a display apparatus are disclosed. The electroluminescent display substrate includes: a base substrate including a display area and a peripheral area surrounding the display area, wherein at least one OLED device is in the display area; a pixel defining layer in the display area and the peripheral area; at least one groove in the pixel defining layer in the peripheral area; wherein the at least one OLED device has a first electrode, the first electrode is on a side of the pixel defining layer away from the base substrate and extends to cover the groove.