Pixel structure with ring shaped emitting region

US11800752B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Lujiang Huangfu · Beijing, CN
• Xing Fan · Beijing, CN
• Hao Gao · Beijing, CN
• Hao Zhang · Shanghai, CN
• Qiuhua Meng · Beijing, CN
• Na Li · Beijing, CN
• Yansong Li · Beijing, CN

Key dates

• Filing date: Mar 17, 2020
• Grant date: Oct 24, 2023
• Expiry date: May 27, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/122

Abstract

A pixel structure includes: a pixel definition layer having a first side and a second side which are opposite to each other in a thickness direction of the pixel definition layer, the pixel definition layer including a pixel opening having sidewalls; an island-shaped portion disposed in the pixel opening of the pixel definition layer and spaced apart from the sidewalls of the pixel opening, the island-shaped portion having sidewalls, and the sidewalls of the pixel opening and the sidewalls of the island-shaped portion defining a ring-shaped pixel groove; and a light emitting unit, at least a part of which is disposed in the ring-shaped pixel groove.