公开(公告)号：US20230297140A1

公开(公告)日：2023-09-21

申请号：US18070976

申请日：2022-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kim ,  Yun-Ho Kim

IPC: G06F1/16 ,  G06F3/0354

CPC classification number: G06F1/1652 ,  G06F3/03545

Abstract: A pen analog front end includes an analog signal processing unit connected with an input sensor. The analog signal processing unit processes an analog input signal that the input sensor receives from an input device. An analog-to-digital converter converts the analog input signal into a first digital input signal. A digital signal processing unit synchronizes the first digital input signal and reference sync data preset to the input sensor and processes a position signal and a data signal of the input device.

公开(公告)号：US11662836B2

公开(公告)日：2023-05-30

申请号：US17544280

申请日：2021-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kim ,  Yun-Ho Kim

IPC: G06F3/0354 ,  G06F3/044 ,  H01L27/32

CPC classification number: G06F3/03545 ,  G06F3/0445 ,  H01L27/323 ,  H01L27/3244

Abstract: An electronic device includes a display layer, a sensor layer disposed on the display layer, and a lower member that is disposed under the display layer and includes a first shielding layer. The sensor layer operates in a first touch mode for sensing a first input based on a capacitance change and a second touch mode for sensing a second input of an input device that is configured to emit a magnetic field, and the first shielding layer shields the magnetic field that is transmitted through the sensor layer.

公开(公告)号：US11474639B2

公开(公告)日：2022-10-18

申请号：US17219608

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Yun-Ho Kim ,  Chul Kim ,  Jaeuk Choi

IPC: G06F3/041 ,  H01L27/32 ,  H01L25/18 ,  G06F3/044 ,  G06F3/0354 ,  G06F3/038

Abstract: An electronic device includes: a sensor layer having an active area and a peripheral area; a driving chip electrically connected to the sensor layer, wherein the sensor layer comprises a plurality of sensing units on the active area and a plurality of lines on the peripheral area and respectively electrically connected to the plurality of sensing units, each of the plurality of sensing units comprises a plurality of sub sensing units, the plurality of sub sensing units comprise a first sub sensing unit and a second sub sensing unit, the plurality of lines comprise a first line electrically connected to the first sub sensing unit and a second line electrically connected to the second sub sensing unit, and the plurality of switches comprises a first switch connected between the first line and the second line and a second switch connected between the first line and the driving chip.

公开(公告)号：US10943082B2

公开(公告)日：2021-03-09

申请号：US15708325

申请日：2017-09-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyoungwook Jang ,  Yun-Ho Kim

IPC: G06K9/00 ,  G06F3/042 ,  G06F3/0488 ,  H01L27/32 ,  G06F3/041 ,  G06F3/044 ,  G09G3/3233 ,  H01L31/0232 ,  H01L31/102 ,  H01L31/113 ,  H01L51/52

Abstract: A display device includes a first base layer, a circuit layer disposed on the first base layer and including a plurality of switching elements, a pixel layer disposed on the circuit layer and including a light emitting element, wherein the light emitting element is configured to receive a current from at least one of the plurality of switching elements to emit a first light, and a sensor layer disposed below the first base layer and including a sensor, wherein the sensor is configured to receive a second light generated when the first light is reflected by an external object.