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：US11244136B2

公开(公告)日：2022-02-08

申请号：US16929221

申请日：2020-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kee Yong Kim ,  Mun Su Kim ,  Chang Yeob Kim ,  Jae-Sung Cha

IPC: G06K9/00

Abstract: A display apparatus includes: a display panel configured to display an image; a fingerprint sensor disposed on the display panel and configured to capture a fingerprint image and to generate fingerprint sensing data; and a fingerprint sensor controller configured to generate a compensation characteristic function of each pixel of the fingerprint sensor using a plurality of test patterns, to extract a coefficient of the compensation characteristic function of each pixel and to compensate the fingerprint sensing data using the coefficient of the compensation characteristic function.

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.