公开(公告)号：US12067201B2

公开(公告)日：2024-08-20

申请号：US18200402

申请日：2023-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junchul Park ,  Jonghee Na ,  Gwangho Nam ,  Taekon Yu ,  Hyunwook Lim ,  Woohyuk Jang ,  Bumsoo Kim ,  Byunghwee Park ,  Wongab Jung ,  Yoon-Kyung Choi

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/3233

CPC classification number: G06F3/0445 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/0446 ,  G09G3/3233 ,  G09G2320/0223 ,  G09G2320/0295 ,  G09G2354/00

Abstract: A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.

公开(公告)号：US11657769B1

公开(公告)日：2023-05-23

申请号：US17895544

申请日：2022-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoungyoon Jang ,  Sewhan Na ,  Jonghee Na ,  Yonghoon Yu ,  Hyunwook Lim

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2360/16

Abstract: An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.

公开(公告)号：US11656729B2

公开(公告)日：2023-05-23

申请号：US17590008

申请日：2022-02-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junchul Park ,  Jonghee Na ,  Gwangho Nam ,  Taekon Yu ,  Hyunwook Lim ,  Woohyuk Jang ,  Bumsoo Kim ,  Byunghwee Park ,  Wongab Jung ,  Yoon-Kyung Choi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0445 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166

Abstract: A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.