公开(公告)号：US20200292796A1

公开(公告)日：2020-09-17

申请号：US16885302

申请日：2020-05-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Feng-Jung KUO ,  Min HUANG ,  Jung-Chung LEE ,  Chi-Ting CHEN ,  Li-Yuan CHANG ,  I-Hsiu CHEN ,  Chin-Hui HUANG

IPC: G02B13/14 ,  G02B6/00 ,  G02B1/11 ,  G02B5/00 ,  G02B5/20 ,  G02B7/02

Abstract: An optical fingerprint sensing module includes an image sensing device, a light source and a light shielding structure. The image sensing device is configured to sense light transmitted from a fingerprint of a finger on a display panel. The image sensing device includes a light sensing plane having a first geometric center. The light source includes a light emitting plane having a second geometric center. The first geometric center is separated from the second geometric center by a distance from 2 mm to 20 mm. The light shielding structure is disposed between the image sensing device and the light source. In examples, the optical fingerprint sensing module further includes a field angle controller to constrain light pass there through with a field angle of 5-60 degrees. A display device including an optical fingerprint sensing module is disclosed herein as well.