Cover plate for flexible substrate, and flexible display device

US11289671B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Yongxiang Shi · Zhejiang, CN
• Paoming TSAI · Beijing, CN
• Dejun Bu · Beijing, CN
• Peng Cai · Beijing, CN
• Jiahao Zhang · Puning, CN
• Shuang Du · Beijing, CN

Key dates

• Filing date: Sep 10, 2019
• Grant date: Mar 29, 2022
• Expiry date: Jun 17, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549

Abstract

The present disclosure provides a cover plate for a flexible substrate which includes a first hardened layer, a second hardened layer and a polymer thin film layer provided between the first hardened layer and the second hardened layer, wherein a hardness of the first hardened layer is less than that of the second hardened layer, a hardness of the polymer thin film layer is less than that of the first hardened layer, and a bending radius of the first hardened layer is greater than that of the second hardened layer.