公开(公告)号：US11853520B2

公开(公告)日：2023-12-26

申请号：US17751515

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eunsol Seo ,  Hyun-Wook Cho ,  Jaewoo Choi ,  Taejoon Kim

IPC: G06F3/044 ,  G06F3/045 ,  G06F3/041

CPC classification number: G06F3/0446 ,  G06F3/045 ,  G06F3/0416 ,  G06F3/0443 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: An electronic device includes a display unit including an active area configured to display an image, a peripheral area adjacent to the active area, and an input sensing unit disposed on the display unit within the active area. The input sensing unit includes a first sensing electrode disposed in the active area and a second sensing electrode spaced apart from the first sensing electrode and disposed in the active area.

公开(公告)号：US12216144B2

公开(公告)日：2025-02-04

申请号：US18340678

申请日：2023-06-23

Applicant: Samsung Display Co., Ltd.

Inventor： Eunsol Seo ,  Hyun-Wook Cho ,  Sangkook Kim ,  Taejoon Kim ,  Eungkwan Lee ,  Jaewoo Choi

IPC: G01R27/26 ,  G06F3/041 ,  G06F3/044

Abstract: In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.

公开(公告)号：US11340746B2

公开(公告)日：2022-05-24

申请号：US17140993

申请日：2021-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： Eunsol Seo ,  Hyun-Wook Cho ,  Jaewoo Choi ,  Taejoon Kim

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/045

Abstract: An electronic device includes a display unit including an active area configured to display an image, a peripheral area adjacent to the active area, and an input sensing unit disposed on the display unit within the active area. The input sensing unit includes a first sensing electrode disposed in the active area and a second sensing electrode spaced apart from the first sensing electrode and disposed in the active area.

公开(公告)号：US12039904B2

公开(公告)日：2024-07-16

申请号：US17844681

申请日：2022-06-20

Applicant: Samsung Display Co., Ltd.

Inventor： Yujin Sin ,  Jun-Young Ko ,  Tae-Ho Kim ,  Eunsol Seo

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2360/14

Abstract: A noise measurement device for measuring noise of a test image displayed on a display device including a display panel and an input sensor configured to sense an external input, includes a luminance meter, a converter, and a determiner. The luminance meter is configured to: measure a luminance of the test image in a state in which the input sensor is turned on to generate first luminance measurement values; and measure a luminance of the test image in a state in which the input sensor is turned off to generate second luminance measurement values. The converter is configured to apply a contrast sensitivity function to luminance difference values between the first and second luminance measurement values to generate final conversion values. The determiner is configured to compare the final conversion values with a predetermined reference range to determine whether a defect exists in the test image.

公开(公告)号：US10884568B2

公开(公告)日：2021-01-05

申请号：US16576609

申请日：2019-09-19

Applicant: Samsung Display Co., Ltd.

Inventor： Eunsol Seo ,  Hyun-Wook Cho ,  Jaewoo Choi ,  Taejoon Kim

IPC: G06F3/045 ,  G06F3/044

Abstract: An electronic device includes a display unit including an active area configured to display an image, a peripheral area adjacent to the active area, and an input sensing unit disposed on the display unit within the active area. The input sensing unit includes a first sensing electrode disposed in the active area and a second sensing electrode spaced apart from the first sensing electrode and disposed in the active area.