Display substrate and preparation method thereof, and display apparatus

US12150348B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Xin Li · Suwon-si, KR
• Xing Fan · Beijing, CN
• Jing Yang · Beijing, CN
• Jiangnan Lu · Beijing, CN
• Yansong Li · Beijing, CN

Key dates

• Filing date: Dec 23, 2020
• Grant date: Nov 19, 2024
• Expiry date: Jun 28, 2042

Classification

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

Abstract

Provided are a display substrate, a preparation method thereof and a display apparatus. The display substrate includes a substrate and a plurality of pixel units disposed in matrix on the substrate, wherein each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a driving structure layer, a first electrode and a first pixel define layer on the driving structure layer, and a light absorption layer disposed on the first pixel define layer. The first pixel define layer includes a plurality of first barriers and first pixel openings disposed between the first barriers, the first pixel opening exposes at least part of the first electrode, and the first pixel opening includes a first surface close to the first electrode, a second surface opposite to the first surface and a first sidewall between the first and second surfaces.