公开(公告)号：US12038475B2

公开(公告)日：2024-07-16

申请号：US17718846

申请日：2022-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Seong Lee ,  Jun Young Ko ,  Kee Yong Kim ,  Eun Sol Seo ,  Jung Hun Sin ,  Jae Woo Choi

IPC: G01R31/28

CPC classification number: G01R31/2891

Abstract: A touch testing apparatus includes: a pogo pad area including input and output test pogo pads respectively connected to input and output test pads disposed in a pad area of a touch detection module; a test touch driver circuit configured to detect compression deviations between the input test pad and the input test pogo pad and between the output test pad and the output test pogo pad, and to correct touch data of the touch detection module based on the detected compression deviations; and a test board on which the test touch driver circuit is mounted, wherein the test board is configured to electrically connect the test touch driver circuit with the input and output test pogo pads.

公开(公告)号：US11580722B2

公开(公告)日：2023-02-14

申请号：US17713286

申请日：2022-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mun Su Kim ,  Kee Yong Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G06K9/20 ,  G06V10/98 ,  G06V10/141 ,  G06V10/145 ,  G06V10/147 ,  G06V40/13 ,  G09G3/3208

Abstract: Provided herein are a calibration method for a fingerprint sensor and a display device using the calibration method, where, in the calibration method for a fingerprint sensor, the fingerprint sensor includes a substrate, a light-blocking layer located on a first surface of the substrate and having openings formed in a light-blocking mask, a light-emitting element layer located on the light-blocking layer and having a plurality of light-emitting elements, and a sensor layer located on a second surface of the substrate and having a plurality of photosensors; and the calibration method includes generating calibration data through white calibration and dark calibration, and applying offsets to the plurality of photosensors using the calibration data.

公开(公告)号：US11709094B2

公开(公告)日：2023-07-25

申请号：US16989782

申请日：2020-08-10

Applicant: Samsung Display Co., LTD.

Inventor： Kee Yong Kim ,  Chang Yeob Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G06F3/16 ,  G01H11/08 ,  H04R29/00 ,  H04N17/00 ,  G10K9/122 ,  G06F1/16

CPC classification number: G01H11/08 ,  G06F1/1605 ,  G06F3/16 ,  G10K9/122 ,  H04N17/004 ,  H04R29/001 ,  H04N2017/006

Abstract: A sound inspection method of a display device and a sound inspection device including preparing a display device including a display panel and a sound generator disposed on a first surface of the display panel, placing a vibration sensor on a second surface opposite to the first surface of the display panel, vibrating the sound generator at a first reference frequency, vibrating the display panel, and then sensing a vibration of the vibration sensor that vibrates along with a vibration of the display panel; and determining whether a frequency of the vibration of the vibration sensor is included in a first threshold frequency region.

公开(公告)号：US11314978B2

公开(公告)日：2022-04-26

申请号：US17009030

申请日：2020-09-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mun Su Kim ,  Kee Yong Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G06K9/20 ,  G06K9/03 ,  G06K9/00 ,  G09G3/3208

Abstract: Provided herein are a calibration method for a fingerprint sensor and a display device using the calibration method, where, in the calibration method for a fingerprint sensor, the fingerprint sensor includes a substrate, a light-blocking layer located on a first surface of the substrate and having openings formed in a light-blocking mask, a light-emitting element layer located on the light-blocking layer and having a plurality of light-emitting elements, and a sensor layer located on a second surface of the substrate and having a plurality of photosensors; and the calibration method includes generating calibration data through white calibration and dark calibration, and applying offsets to the plurality of photosensors using the calibration data.

公开(公告)号：US20210158069A1

公开(公告)日：2021-05-27

申请号：US17009030

申请日：2020-09-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mun Su Kim ,  Kee Yong Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G06K9/03 ,  G06K9/00 ,  G06K9/20

Abstract: Provided herein are a calibration method for a fingerprint sensor and a display device using the calibration method, where, in the calibration method for a fingerprint sensor, the fingerprint sensor includes a substrate, a light-blocking layer located on a first surface of the substrate and having openings formed in a light-blocking mask, a light-emitting element layer located on the light-blocking layer and having a plurality of light-emitting elements, and a sensor layer located on a second surface of the substrate and having a plurality of photosensors; and the calibration method includes generating calibration data through white calibration and dark calibration, and applying offsets to the plurality of photosensors using the calibration data.

公开(公告)号：US20210048339A1

公开(公告)日：2021-02-18

申请号：US16989782

申请日：2020-08-10

Applicant: Samsung Display Co., LTD.

Inventor： Kee Yong Kim ,  Chang Yeob Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G01H11/08 ,  H04R29/00 ,  H04N17/00 ,  G06F1/16 ,  G06F3/16 ,  G10K9/122

Abstract: A sound inspection method of a display device and a sound inspection device including preparing a display device including a display panel and a sound generator disposed on a first surface of the display panel, placing a vibration sensor on a second surface opposite to the first surface of the display panel, vibrating the sound generator at a first reference frequency, vibrating the display panel, and then sensing a vibration of the vibration sensor that vibrates along with a vibration of the display panel; and determining whether a frequency of the vibration of the vibration sensor is included in a first threshold frequency region.

公开(公告)号：US12014566B2

公开(公告)日：2024-06-18

申请号：US18132262

申请日：2023-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Kee Yong Kim ,  Jung Hun Sin ,  Young Sik Kim ,  Tae Joon Kim ,  Hee Woong Park ,  Sang Wook Yoo

IPC: G06V40/13 ,  G06V40/12

CPC classification number: G06V40/13 ,  G06V40/1347 ,  G06V40/1365

Abstract: Provided is a fingerprint authentication device comprising a biometric sensor that senses biometric information to generate a sensing signal; an image processor that extracts a calibration function based on calibration data and generates a fingerprint image based on the calibration function and the sensing signal; and an authenticator that performs fingerprint authentication by comparing the fingerprint image and registered fingerprint information. The calibration data includes information on a calibration coefficient of the calibration function.

公开(公告)号：US20220230427A1

公开(公告)日：2022-07-21

申请号：US17713286

申请日：2022-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mun Su KIM ,  Kee Yong Kim ,  Jung Hun Sin ,  Han Su Cho

IPC: G06V10/98 ,  G06V10/141 ,  G06V10/145 ,  G06V10/147 ,  G06V40/13

Abstract: Provided herein are a calibration method for a fingerprint sensor and a display device using the calibration method, where, in the calibration method for a fingerprint sensor, the fingerprint sensor includes a substrate, a light-blocking layer located on a first surface of the substrate and having openings formed in a light-blocking mask, a light-emitting element layer located on the light-blocking layer and having a plurality of light-emitting elements, and a sensor layer located on a second surface of the substrate and having a plurality of photosensors; and the calibration method includes generating calibration data through white calibration and dark calibration, and applying offsets to the plurality of photosensors using the calibration data.