公开(公告)号：US20200372861A1

公开(公告)日：2020-11-26

申请号：US16816805

申请日：2020-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jiheon OK ,  Yoonho Ko ,  Taekon Yu ,  Hwahyun Cho

IPC: G09G3/3241 ,  G09G3/3283

Abstract: A display driving circuit including: a data driver configured to supply driving signals to a plurality of pixels of a display panel and sense electrical characteristics of each of the plurality of pixels; and a degradation compensation circuit configured to generate and store an accumulated degradation value by accumulating degradation values for each of a plurality of pixel blocks for a unit time, based on driving data corresponding to the driving signals, correct the accumulated degradation value of a first pixel block, based on sensing data received from the data driver, and perform data compensation to compensate for pixel degradation, based on the accumulated degradation values and a degradation model, wherein each pixel block includes at least one pixel.

公开(公告)号：US11670231B2

公开(公告)日：2023-06-06

申请号：US17570926

申请日：2022-01-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jiheon Ok ,  Yoonho Ko ,  Taekon Yu ,  Hwahyun Cho

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2320/029 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/048

Abstract: A display driving circuit including: a data driver configured to supply driving signals to a plurality of pixels of a display panel and sense electrical characteristics of each of the plurality of pixels; and a degradation compensation circuit configured to generate and store an accumulated degradation value by, accumulating degradation values for each of a plurality of pixel blocks for a unit time, based on driving data corresponding to the driving signals, correct the accumulated degradation value of a first pixel block, based on sensing data received from the data driver, and perform data compensation to compensate for pixel degradation, based on the accumulated degradation values and a degradation model, wherein each pixel block includes at least one pixel.

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.

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：US11244612B2

公开(公告)日：2022-02-08

申请号：US16816805

申请日：2020-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jiheon Ok ,  Yoonho Ko ,  Taekon Yu ,  Hwahyun Cho

IPC: G09G3/3233

Abstract: A display driving circuit including: a data driver configured to supply driving signals to a plurality of pixels of a display panel and sense electrical characteristics of each of the plurality of pixels; and a degradation compensation circuit configured to generate and store an accumulated degradation value by accumulating degradation values for each of a plurality of pixel blocks for a unit time, based on driving data corresponding to the driving signals, correct the accumulated degradation value of a first pixel block, based on sensing data received from the data driver, and perform data compensation to compensate for pixel degradation, based on the accumulated degradation values and a degradation model, wherein each pixel block includes at least one pixel.

公开(公告)号：US11043185B2

公开(公告)日：2021-06-22

申请号：US16853007

申请日：2020-04-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoonho Ko ,  Jiheon Ok ,  Taekon Yu ,  Hwa Hyun Cho

IPC: G09G5/00 ,  G09G5/18

Abstract: An electronic device includes a display driver integrated (DDI) circuit configured to output reference pixel values to be used to obtain target pixel values of a first line, and to output image pixel values associated with a target image; and a panel circuit configured to include the first line that includes pixels configured to display a reference image having the target pixel values, based on the reference pixel values, and a second line that includes pixels configured to display an image corresponding to the target image, based on the image pixel values. The DDI circuit may be further configured to compensate for the image pixel values based on differences between the image pixel values and the reference pixel values.