Display panel and display device comprising inorganic packaging layer having multiple inorganic sublayers

US11882721B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Xing Fan · Beijing, CN
• Hao Gao · Beijing, CN
• Qixiao WU · Beijing, CN
• Cheng HAN · Beijing, CN
• Tao Wang · Beijing, CN
• Yansong Li · Beijing, CN

Key dates

• Filing date: Sep 23, 2021
• Grant date: Jan 23, 2024
• Expiry date: May 26, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/879

Abstract

The present disclosure provides a display panel and a display device. The display panel includes: a substrate; and a light-emitting device and a packaging structure on the substrate, the packaging structure sealing the light-emitting device on the substrate. The light-emitting device includes a cathode, an anode, and a light-emitting layer between the cathode and the anode; the packaging structure includes a first inorganic packaging layer, and the first inorganic packaging layer includes a first inorganic packaging sublayer, a second inorganic packaging sublayer, and a third inorganic packaging sublayer that are sequentially stacked; and a refractive index of the second inorganic packaging sublayer is greater than a refractive index of the first inorganic packaging sublayer, and a difference between the refractive index of the second inorganic packaging sublayer and the refractive index of the first inorganic packaging sublayer is greater than 0.1, the refractive index of the second inorganic packaging sublayer is greater than a refractive index of the third inorganic packaging sublayer, and a difference between the refractive index of the second inorganic packaging sublayer and t…