公开(公告)号：US20220147212A1

公开(公告)日：2022-05-12

申请号：US17444906

申请日：2021-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGHAK KIM ,  YOUNGSIK KIM ,  KYOWON KU ,  JEONGHEON LEE

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: An electronic device, includes: a display panel; and an input sensor on the display panel, wherein the input sensor includes a plurality of sensing electrodes, each having a first region and a second region that surrounds the first region, each of the plurality of sensing electrodes including a pen electrode configured to detect an input tool and a touch electrode configured to detect a touch input, wherein the pen electrode is at the first region, and wherein the touch electrode is at the second region.

公开(公告)号：US20230214052A1

公开(公告)日：2023-07-06

申请号：US17964702

申请日：2022-10-12

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGHEON LEE ,  SOONGYU LEE ,  KYOWON KU ,  JUNGHAK KIM ,  HANSU CHO

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

CPC classification number: G06F3/04166 ,  G06F3/04186 ,  G06F3/0446 ,  G06F3/0443 ,  H01L27/323 ,  G06F3/0412 ,  G06F2203/04111

Abstract: An electronic device includes: a display layer to display an image; a sensor layer on the display layer; and a sensor driver electrically connected with the sensor layer, and to be selectively driven in a first mode for detecting a passive input, or a second mode for detecting an active input. In the second mode, the sensor driver is to: receive a plurality of sensing signals from the sensor layer; divide the plurality of sensing signals into a valid signal and a noise signal; calculate intermediate coordinates based on the valid signal; and correct the intermediate coordinates based on the noise signal to calculate input coordinates.

公开(公告)号：US20230176676A1

公开(公告)日：2023-06-08

申请号：US18053509

申请日：2022-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： EUNGKWAN LEE ,  HYUN-WOOK CHO ,  SANGKOOK KIM ,  TAEJOON KIM ,  JEONGHEON LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0446

Abstract: An electronic device includes a display layer, a sensor layer, and a sensor driver that receives a sensitivity value from a node defined in an area where one electrode intersects one cross electrode, and calculates an input coordinate based on the sensitivity value. When the sensitivity value received from the node is equal to or greater than a first threshold value, the sensor driver calculates the input coordinate based on the sensitivity value. When each of a plurality of sensitivity values received from the node and a plurality of peripheral nodes adjacent to the node is less than the first threshold value and greater than or equal to a second threshold value, the sensor driver calculates the input coordinate based on the plurality of sensitivity values.

公开(公告)号：US20230185398A1

公开(公告)日：2023-06-15

申请号：US18072510

申请日：2022-11-30

Applicant: Samsung Display Co., LTD.

Inventor： JUNGHAK KIM ,  YOUNGSIK KIM ,  KYOWON KU ,  JEONGHEON LEE ,  HANSU CHO

IPC: G06F3/041 ,  G09G3/32

CPC classification number: G06F3/04162 ,  G09G3/32 ,  G06F3/0443 ,  G06F2203/04106 ,  G09G2330/028 ,  G09G2354/00

Abstract: An electronic device includes: a display layer configured to display an image; a display driver configured to drive the display layer; a sensor layer on the display layer; and a sensor driver configured to drive the sensor layer, and wherein the sensor layer is configured to output a first uplink signal generated with a first reference voltage in a first mode, and to output a second uplink signal generated with a second reference voltage greater than the first reference voltage in a second mode different from the first mode.

公开(公告)号：US20220308696A1

公开(公告)日：2022-09-29

申请号：US17581377

申请日：2022-01-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SOONGYU LEE ,  JINWOO KIM ,  JEONGHEON LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: Provided is an electronic device including a display panel configured to display an image, an input sensing layer on the display panel, and configured to operate in a first sensing mode in which a first input is sensed, or a second sensing mode in which a second input provided by an input device is sensed, and a sensing controller configured to control an operation of the input sensing layer, wherein, in the first sensing mode, the sensing controller operates in a first mode in which an uplink signal for searching the input device is transmitted at a first frequency to the input sensing layer, or a second mode in which the uplink signal is transmitted at a second frequency, which is less than the first frequency, to the input sensing layer, and wherein, in the second sensing mode, the sensing controller transmits the uplink signal at the first frequency to the input sensing layer.