Driving backplane, display panel and method for manufacturing the same

US11373585B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Wenqu Liu · Beijing, CN
• Qi Yao · Nanhu, CN
• Feng Zhang · 南丰镇, CN
• Zhijun Lv · Beijing, CN
• Liwen Dong · Beijing, CN
• Zhao Cui · Beijing, CN
• Xiaoxin Song · Beijing, CN
• Detian MENG · Beijing, CN
• Libo Wang · Beijing, CN

Key dates

• Filing date: Oct 14, 2020
• Grant date: Jun 28, 2022
• Expiry date: Jan 19, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/0364
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A driving backplane includes a base, and a pixel driving circuit, a first electrode and a first piezoelectric block that are disposed in the sub-pixel region. The pixel driving circuit is disposed on the base. The first electrode is disposed at a side of the pixel driving circuit away from the base. The first electrode includes a first sub-electrode pattern and a second sub-electrode pattern that are in a same layer and are spaced apart to be insulated from each other, and the first sub-electrode pattern is electrically connected to the pixel driving circuit. The first piezoelectric block is disposed between the pixel driving circuit and the first electrode, and the first sub-electrode pattern and the second sub-electrode pattern are in contact with the first piezoelectric block.