Pixel unit, display panel, display device and method of manufacturing pixel unit

US10964758B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Guang Yan · Beijing, CN
• Wenjun Hou · Beijing, CN
• Juanjuan You · Beijing, CN
• Donghui Yu · Beijing, CN
• Chunjing Hu · Beijing, CN
• Yongqi SHEN · Beijing, CN
• Dongfang Yang · Beijing, CN

Key dates

• Filing date: Apr 8, 2019
• Grant date: Mar 30, 2021
• Expiry date: Apr 8, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/036

Abstract

A pixel unit, a display panel, a display device and a method of manufacturing a pixel unit. The pixel unit includes a first sub-pixel unit and a second sub-pixel unit, each sub-pixel unit includes a first electrode, an emission layer, and a second electrode stacked on a substrate. An emission lifespan of the emission layer of the first sub-pixel unit is smaller than that of the emission layer of the second sub-pixel unit. An area of an orthographic projection of the emission layer of the first sub-pixel unit on the substrate is equal to that of the emission layer of the second sub-pixel unit on the substrate. An area of an orthographic projection of the first electrode of the first sub-pixel unit on the substrate is greater than an area of an orthographic projection of the first electrode of the second sub-pixel unit on the substrate.