公开(公告)号：US20220013069A1

公开(公告)日：2022-01-13

申请号：US17208206

申请日：2021-03-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jooyoung AN ,  Jiheon OK ,  Hyunwook LIM

IPC: G09G3/3266

Abstract: A display driver integrated circuit includes a first memory, a compensator, an accumulator and a second memory. The first memory stores a plurality of compensation data that are used to compensate for deterioration of a plurality of pixels. The compensator generates a plurality of output image data for image display by compensating a plurality of input image data based on the plurality of compensation data. The accumulator groups the plurality of pixels into a plurality of blocks, generates a plurality of block image data by sampling the plurality of output image data in block units, generates a plurality of block accumulation data in block units based on the plurality of block image data, and generates a plurality of pixel accumulation data in pixel units by synthesizing portions of the plurality of output image data and portions of the plurality of block accumulation data. The second memory stores the plurality of block accumulation data in a first period. The plurality of pixel accumulation data may be stored in a third memory in a second period longer than the first period.

公开(公告)号：US20230134597A1

公开(公告)日：2023-05-04

申请号：US17747521

申请日：2022-05-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sewhan NA ,  Jiheon OK ,  Unki PARK ,  Jaeyoul LEE ,  Hyunwook LIM

IPC: G06F3/041 ,  G09G3/20

Abstract: A display device includes a display panel, a touch sensor, a display driver and a touch controller. The display driver drives the display panel based on input image data, and generates predicted noise data corresponding to the input image data by using an artificial neural network. The touch controller receives a touch sensing signal from the touch sensor by driving the touch sensor, converts the touch sensing signal that is an analog signal into touch sensing data that are digital data, and compensates the touch sensing data based on the predicted noise data.

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：US20220139309A1

公开(公告)日：2022-05-05

申请号：US17348151

申请日：2021-06-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jiheon OK ,  Hyeonsu PARK ,  Jooyoung AN ,  Yonghoon YU ,  Hyunwook LIM ,  Woohyuk JANG

IPC: G09G3/3208

Abstract: To compensate for degeneration of an electroluminescent display device, a method of compensating for the degeneration may include, grouping a plurality of pixels in a display panel into a plurality of pixel blocks arranged in present block rows and present block columns based on initial block boundaries, accumulating block stress values based on input image data, each accumulated block stress value representing a degeneration degree of the pixels included in each pixel block of the plurality of pixel blocks, performing a boundary updating operation on the plurality of pixel blocks, the performing the boundary updating operation including moving present block boundaries of the plurality of pixel blocks to updated block boundaries based on a distribution of the accumulated block stress values, and correcting the input image data based on the accumulated block stress values and the updated block boundaries.

公开(公告)号：US20220130332A1

公开(公告)日：2022-04-28

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

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：US20210043158A1

公开(公告)日：2021-02-11

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.