公开(公告)号：US20240288966A1

公开(公告)日：2024-08-29

申请号：US18397060

申请日：2023-12-27

Applicant: Samsung Display Co., Ltd.

Inventor： YERIN OH ,  TAEJOON KIM ,  JINWOO PARK ,  SEUNGROK LEE ,  IL HO LEE ,  WANKEE JUN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446

Abstract: An electronic device including: a display layer; a sensor layer disposed on the display layer; a memory configured to store first sensitivity values and first differential sensitivity values; and a sensor driver configured to calculate second sensitivity values from a plurality of nodes and to calculate second differential sensitivity values, wherein the sensor driver is configured to: calculate difference values between the first differential sensitivity values and the second differential sensitivity values; calculate a first average value of a first row or column of values among the difference values; and calculate a second average value of remaining values among the difference values, wherein the remaining values were not used in the first average value calculation, and wherein the sensor driver determines whether to update a baseline, based on the first average value and the second average value.

公开(公告)号：US20250029535A1

公开(公告)日：2025-01-23

申请号：US18629171

申请日：2024-04-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYEONSEO CHO ,  MIN-HONG KIM ,  SEUNGROK LEE

IPC: G09G3/00 ,  G01R31/28

Abstract: Disclosed is a display module inspection device including a waveform generator configured to generate a first test signal and to transmit the first test signal to the display module, and a noise sensing unit configured to receive a second test signal from the display module, wherein the second test signal is indicative of a mutual capacitance between a plurality of sensing electrodes of the display module, wherein the noise sensing unit is configured to calculate a capacitance value based on the mutual capacitance and the first test signal, and wherein the capacitance value is indicative of noise.

公开(公告)号：US20240046827A1

公开(公告)日：2024-02-08

申请号：US18199606

申请日：2023-05-19

Applicant: Samsung Display Co., LTD.

Inventor： JINWOO PARK ,  BOGEUN YUK ,  TAEJOON KIM ,  SEUNGROK LEE ,  IL HO LEE

IPC: G09G3/00 ,  G06F3/044 ,  G09G3/20

CPC classification number: G09G3/006 ,  G06F3/0446 ,  G09G3/2096 ,  G09G2330/12

Abstract: An electronic device testing method includes providing an electronic device including a display layer including a common electrode and a sensor layer that is disposed on the display layer and that includes a plurality of first electrodes and a plurality of second electrodes that insulatively intersect the plurality of first electrodes, measuring a plurality of jitter values of a plurality of channels formed by the plurality of first electrodes and the plurality of second electrodes, calculating a first value being an average of the plurality of jitter values, calculating a second value by summing jitter values, among the plurality of jitter values, of channels formed by one of the plurality of second electrodes among the plurality of channels, and testing the common electrode based on a third value obtained by dividing the second value by the first value.

公开(公告)号：US20240329773A1

公开(公告)日：2024-10-03

申请号：US18400065

申请日：2023-12-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEUNGROK LEE ,  YERIN OH ,  IL HO LEE ,  WANKEE JUN ,  HYEONSEO CHO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0443 ,  G06F3/0446 ,  G09G3/3208 ,  G09G2310/08

Abstract: A driving method of a touch sensing part includes sensing a touch of a user by comparing a capacitance formed by a first sensing electrode and a second sensing electrode crossing the first sensing electrode with a reference value in a reference touch mode, varying the reference value such that the reference value decreases along a decrease in the capacitance, during a first period, when an ambient temperature is lower than a reference temperature, sensing the user's touch by comparing the reference value and the capacitance, with the reference value maintained uniformly, during a second period following the first period, when the touch of the user is made, and varying the reference value such that the reference value decreases, during a third period following the second period.

公开(公告)号：US20240242645A1

公开(公告)日：2024-07-18

申请号：US18498658

申请日：2023-10-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： IL HO LEE ,  TAEJOON KIM ,  JINWOO PARK ,  YERIN OH ,  SEUNGROK LEE ,  WANKEE JUN

IPC: G09G3/00 ,  G06F3/041 ,  G06F3/044 ,  G09G3/3208

CPC classification number: G09G3/006 ,  G06F3/0412 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/0446 ,  G09G3/3208 ,  G09G2354/00

Abstract: An inspection system includes a display device product comprising a display panel and an input sensor; and an inspection device comprising an inspection signal generator configured to provide to the display panel an inspection signal indicative of a first image pattern, a memory configured to store a reference signal responsive to a second image pattern, and a noise detector configured to receive from the input sensor a sensing signal responsive to the first image pattern, detect a first noise based on the sensing signal, and detect a second noise based on the reference signal.