US Patent No. 10,169,635

DISPLAY DEVICE AND METHOD FOR FABRICATING A DISPLAY DEVICE


Patent No. 10,169,635
Issue Date January 01, 2019
Title Display Device And Method For Fabricating A Display Device
Inventorship Yingming Liu, Beijing (CN)
Xue Dong, Beijing (CN)
Xiaochuan Chen, Beijing (CN)
Haisheng Wang, Beijing (CN)
Xiaoliang Ding, Beijing (CN)
Shengji Yang, Beijing (CN)
Weijie Zhao, Beijing (CN)
Changfeng Li, Beijing (CN)
Wei Liu, Beijing (CN)
Pengpeng Wang, Beijing (CN)
Assignee BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN) BEIJING BOE OPTOELECTRONICS T...

Claim of US Patent No. 10,169,635

1. A display device comprising a display layer and a base layer under the display layer, wherein the base layer comprises:a substrate having a first conductivity type;
a well region, positioned in a portion of a side of the substrate facing towards the display layer, the well region having a second conductivity type opposite to the first conductivity type; and
an ultrasonic receiver formed in the well region, wherein the ultrasonic receiver comprises:
a first bottom electrode facing towards the substrate, the first bottom electrode comprising a first semiconductor region formed in the well region, and the first semiconductor region having the first conductivity type;
a first top electrode facing towards the display layer; and
a first piezoelectric layer, formed between the first bottom electrode and the first top electrode.