Display backplane, method for preparing the same, and display device

US11258016B2 · kind B2 · utility

Assignees

• Ordos Yuansheng Optoelectronics Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Zhiyong Xue · Beijing, CN
• Nini Bai · Beijing, CN
• Liman Peng · Beijing, CN
• Liangliang LIU · Beijing, CN
• Qianqian Zhang · Beijing, CN
• Shujie Liu · Cupertino, US
• Hailong Li · Cincinnati, US
• Lingling Ma · Beijing, CN
• Hongyu Mi · Beijing, CN
• Xu Liu · Nanhu, CN
• Qiang Chen · Sollentuna, SE
• Guodong Jing · Beijing, CN

Key dates

• Filing date: Dec 20, 2019
• Grant date: Feb 22, 2022
• Expiry date: Feb 7, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/00
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

The present disclosure provides a display backplane, a method for preparing the same, and a display device. The display backplane includes a substrate, an electronic device and an alignment mark arranged on the substrate, and a filling layer, the filling layer being filled in at least a part of a recessed area located on a surface of the substrate away from the electronic device, and a minimum distance between an orthogonal projection of the at least part of the recessed area on the substrate and an orthogonal projection of the alignment mark on the substrate being less than 200 μm.