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:
Sep. 07, 2021
Filed:
Nov. 26, 2018
Connectec Japan Corporation, Niigata, JP;
Fujikin Incorporated, Osaka, JP;
Hiroshi Komatsu, Niigata, JP;
Akane Suzuki, Osaka, JP;
Jun Kimura, Osaka, JP;
Kensuke Kojima, Osaka, JP;
CONNECTEC JAPAN CORPORATION, Niigata, JP;
FUJIKIN INCORPORATED, Osaka, JP;
Abstract
A fingerprint sensor for a display device capable of suppressing loss of light due to diffraction of light and a display device with this fingerprint sensor are provided. A fingerprint sensor for a display device having a plurality of photosensors arranged in a matrix, each of the photosensors has a semiconductor film for converting incident light into an electric signal, and a bottom gate electrode as a light shielding film arranged on a lower layer side of the semiconductor film for blocking incident light from the lower layer side to the semiconductor film, wherein the bottom gate electrode has four corner portions in an outer contour shape in a top view, and each of the corner portions is rounded.