公开(公告)号：US11257462B2

公开(公告)日：2022-02-22

申请号：US16928463

申请日：2020-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： Seok Ha Hong ,  Dong Joon Kwag ,  Hyung Jin Kim ,  Ji-Eun Park ,  Hye-Sang Park ,  Hyun Seuk Yoo ,  Hee Chui Hwang

IPC: G09G5/02

Abstract: In a method of generating compensation data for a display device, first color, second color, and third color compensation value sets may be obtained by capturing first color, second color, and third color images displayed by the display device, respectively, white, first color, second color, and third color loading luminances may be obtained by capturing white, first color, second color, and third color loading patterns displayed by the display device, respectively, first color, second color, and third color scale factors may be calculated by dividing a luminance decrease ratio of the white loading luminance by luminance decrease ratios of the first color, second color, and third color loading luminances, respectively, and the first color, second color, and third color compensation value sets and the first color, second color, and third color scale factors may be stored in the display device.

公开(公告)号：US11423691B2

公开(公告)日：2022-08-23

申请号：US16927622

申请日：2020-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Hyun Moon ,  Yun Ho Kim ,  Jin Oh Kwag ,  Won Sang Park ,  Bong Hyun You ,  Keum Dong Jung ,  Chui Kim ,  Jun Hee Moon ,  Deok Hwa Woo ,  Hee Chui Hwang

IPC: G06V40/13 ,  G06V40/12

Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.

公开(公告)号：US11386693B2

公开(公告)日：2022-07-12

申请号：US16930321

申请日：2020-07-16

Applicant: Samsung Display Co., LTD.

Inventor： Dong Wook Yang ,  Hyun Dae Lee ,  Seung Hyun Moon ,  Young Eun Lee ,  Hee Chui Hwang

IPC: G06K9/00 ,  G06V40/13

Abstract: The display device comprises: a display panel displaying an image, a light blocking layer disposed under the display panel and comprising a plurality of holes, a fingerprint sensing layer disposed under the light blocking layer and comprising a plurality of fingerprint sensors receiving reflected light passing through the plurality of hole and generating a sensing signal, and a sensor driver controlling operations of the plurality of fingerprint sensors. The sensor driver compares fingerprint data generated based on a sensing signal generated from reflected light by a user's fingerprint with prestored reference data to generate a fingerprint image.