公开(公告)号：US12032756B2

公开(公告)日：2024-07-09

申请号：US18084436

申请日：2022-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： Junghak Kim ,  Kyowon Ku ,  Youngsik Kim ,  Hansu Cho

IPC: G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/03545 ,  G06F3/038

Abstract: An input device includes: a housing; a tip electrode protruding outside of the housing and configured to transmit a downlink signal to the outside; a reception electrode inside the housing and configured to receive an uplink signal from the outside; and a communication circuit electrically connected to the tip electrode and the reception electrode and configured to receive the uplink signal from the reception electrode or to transmit the downlink signal to the tip electrode, wherein a surface of the reception electrode has a concave-convex structure.

公开(公告)号：US12099675B2

公开(公告)日：2024-09-24

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 ,  G06F3/0354 ,  G06F3/044 ,  G09G3/32

CPC classification number: G06F3/04162 ,  G09G3/32 ,  G06F3/03545 ,  G06F3/0412 ,  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：US11941203B2

公开(公告)日：2024-03-26

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 ,  H10K59/40

CPC classification number: G06F3/04166 ,  G06F3/04186 ,  G06F3/0443 ,  G06F3/0446 ,  H10K59/40 ,  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：US11815544B2

公开(公告)日：2023-11-14

申请号：US17327890

申请日：2021-05-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hansu Cho ,  Junghun Sin ,  Keeyong Kim ,  Minhyeon Yu

IPC: G01R31/02 ,  G01N21/95 ,  G02F1/13 ,  B25B11/00 ,  G01R31/28

CPC classification number: G01R31/2825 ,  B25B11/00 ,  G01N2021/9513 ,  G01R31/2865 ,  G02F1/1309 ,  G02F2203/69

Abstract: A display panel inspection jig includes a stage comprising a seating area in which a display panel is to be disposed for inspection thereof, and a peripheral area surrounding the seating area, and comprising an uneven upper surface and a lower surface, the seating area of the stage being provided with an opening, a first supporter disposed on a first portion of the uneven upper surface of the stage, and a first barrier disposed on a second portion of the uneven upper surface of the stage. The first portion of the uneven upper surface being at the seating area and spaced apart from the opening, and the second portion of the uneven upper surface is at the peripheral area. The first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage are fitted with each other.