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：US20230305658A1

公开(公告)日：2023-09-28

申请号：US18095906

申请日：2023-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNGBAE KIM ,  HYUN-WOOK CHO ,  SANGKOOK KIM ,  TAEJOON KIM ,  JAEHYUN PARK ,  JIYEONG LEE

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/40

CPC classification number: G06F3/0418 ,  G06F3/0446 ,  G06F3/04164 ,  H10K59/40 ,  G06F3/0412 ,  G06F2203/04111

Abstract: Provided is a display device comprising a display panel, an input sensor including a first sensing area having a first sub-area and a second sub-area, and a first sensor controller configured to drive the first sensing area. Here, the input sensor includes first sensing electrodes disposed in the first sub-area to receive a first transmission signal from the first sensor controller, second sensing electrodes disposed in the first sub-area and intersected with the first sensing electrodes, third sensing electrodes disposed in the second sub-area to receive a second transmission signal having a phase inverted from that of the first transmission signal from the first sensor controller, and fourth sensing electrodes disposed in the second sub-area and intersected with the third sensing electrodes.

公开(公告)号：US20230185402A1

公开(公告)日：2023-06-15

申请号：US17955794

申请日：2022-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： JIYEONG LEE ,  HYUN-WOOK CHO ,  SANGKOOK KIM ,  TAEJOON KIM ,  HYUNGBAE KIM ,  JAEHYUN PARK

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446 ,  G06F3/0412 ,  H01L27/3244

Abstract: A display device includes a display panel that displays an image, an input sensor that senses an external input, and a sensing controller that controls the driving of the input sensor. The input sensor includes a plurality of scanning electrodes and a plurality of sensing electrodes. The sensing controller simultaneously transmits input scanning signals to at least two scanning electrodes of the plurality of scanning electrodes during a group scanning period. The group scanning period includes a plurality of scanning periods. The sensing controller transmits a compensating signal having a phase different from a phase of at least one of the input scanning signals to at least one sensing electrode of the plurality of sensing electrodes during at least one scanning period of the plurality of scanning periods.

公开(公告)号：US20220326833A1

公开(公告)日：2022-10-13

申请号：US17583729

申请日：2022-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： HYUN-WOOK CHO ,  MIN-HONG KIM ,  TAEJOON KIM ,  JUNGMOK PARK

IPC: G06F3/041 ,  G06F3/044

Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that receives a vertical synchronization signal and a horizontal synchronization signal and controls an operation of the display panel depending on the vertical synchronization signal and the horizontal synchronization signal, and a sensing controller that receives the vertical synchronization signal and the horizontal synchronization signal and generates a driving control signal for driving the input sensing layer. One frame of the vertical synchronization signal includes a first vertical section and a second vertical section in which the display controller transmits a data signal to the display panel. The sensing controller determines an operating frequency of the driving control signal based on a horizontal synchronization signal, which is included in a first horizontal section overlapping with the first vertical section, in the horizontal synchronization signal.