Display panel having color conversion layer and display device thereof

US11257870B2 · kind B2 · utility

Assignee

• Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. · CN

Inventors

• Aiguo TU · Lo Wu, CN
• Jinchuan Li · Nanhu, CN
• Yuanchun Wu · Lo Wu, CN

Key dates

• Filing date: Jan 9, 2020
• Grant date: Feb 22, 2022
• Expiry date: May 2, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/331

Abstract

A display panel and a display device are provided. The display panel includes an organic electroluminescence device and a color conversion layer disposed on the organic electroluminescence device. The color conversion layer includes a quantum dot material and an organic electroluminescence material. The organic electroluminescent material is added to the color conversion layer. By mixing the organic electroluminescent material and the quantum dot material, the organic electroluminescent material forms excitons under excitation of blue light, and then singlet state excitons are transferred to quantum dots by fluorescence resonance energy, thereby improving an efficiency of the color conversion layer.