The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2021
Filed:
Feb. 15, 2020
Egis Technology Inc., Taipei, TW;
Igistec Co., Ltd., Hsinchu County, TW;
Hsueh-Fang Yeh, Hsinchu County, TW;
Ming-Yuan Cheng, Hsinchu County, TW;
Chung-Yi Wang, Hsinchu County, TW;
Yu-Hsuan Lin, Hsinchu County, TW;
Egis Technology Inc., Taipei, TW;
Igistec Co., Ltd., Hsinchu, TW;
Abstract
The disclosure provides a fingerprint sensing device, including a glass cover plate, a display panel, a fingerprint sensing module, a liquid crystal layer module, and a control circuit. The display panel is disposed below the glass cover plate, and provides illumination light to a finger. The fingerprint sensing module is disposed below the glass cover plate, and senses light reflected by the finger. The liquid crystal layer module is disposed on the fingerprint sensing module. The control circuit is coupled to the liquid crystal layer module, and drives the liquid crystal layer module to focus the illumination light to the finger or focus the light reflected by the finger to the fingerprint sensing module.