Patent · US Active

Fingerprint collection device and display panel

US12307804B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. · CN

Inventors

Fan Gong · 红钢城街道, CN
Fei AI · 红钢城街道, CN
Jiyue Song · 红钢城街道, CN
Dewei Song · 红钢城街道, CN

Key dates

Filing date	Mar 10, 2022
Grant date	May 20, 2025
Priority date	—
Expiry date	Mar 10, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH10D86/423
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A fingerprint collection device and a display panel are provided. The fingerprint collection device includes: a base substrate, a driving circuit layer, a first passivation layer, a photodiode, a second passivation layer, and an electrode layer. A first electrode portion is electrically connected to the photodiode through a second via. A second electrode portion is electrically connected to a first signal trace and a second signal trace through a third via and a fourth via to form a bridge structure. Since the third via, the fourth via, and the second via are formed in same process, one process can be saved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.