Display substrate and manufacturing method thereof, and display device

US12010876B2 · kind B2 · utility

Assignees

• Chengdu BOE Optoelectronics Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Xin Zhang · Beijing, CN
• Yang Zhou · Nanhu, CN
• Yupeng He · Beijing, CN
• Xiaofeng Jiang · Beijing, CN
• Meng Zhang · Beijing, CN
• Lu Bai · Beijing, CN
• Yi Qu · Beijing, CN
• Huijun Li · Beijing, CN
• Lulu Yang · Beijing, CN
• Pengfei Yu · Beijing, CN
• Hao Zhang · Shanghai, CN
• Mengqi Wang · Beijing, CN

Key dates

• Filing date: Mar 18, 2020
• Grant date: Jun 11, 2024
• Expiry date: Apr 17, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/8731

Abstract

Provided are a display substrate and a manufacturing method thereof, and a display device. The display substrate includes: a base substrate; a drive circuit layer formed on the base substrate and including an interlayer dielectric layer at the display region and the transition region; display parts at the display region, including a first electrode and a pixel definition portion sequentially formed on the interlayer dielectric layer; a first packaging dam and a second packaging dam at the transition region and around the opened region, each including a protective portion and a blocking portion sequentially laminated on the interlayer dielectric layer. The second packaging dam is at a side of the first packaging dam away from the display region, and a thickness of the second packaging dam is greater than that of the first packaging dam.