公开(公告)号：US11727839B2

公开(公告)日：2023-08-15

申请号：US17833767

申请日：2022-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon Lee ,  Jong Wook Kim ,  Kyoung Ho Lim

IPC: G09G3/32 ,  G09G3/00 ,  G09G3/20 ,  G09G3/3208

CPC classification number: G09G3/007 ,  G09G3/2003 ,  G09G3/3208 ,  G09G2340/04 ,  G09G2340/06

Abstract: A display device and a method of driving the same are provided. The method of driving the display includes a display area to display an image. The method includes performing a first first pixel shift driving by shifting an image by a first range in the display area without loss of image information due to enlargement or reduction of the image, checking whether a change of a block grayscale value is greater than or equal to a threshold in an interest area in the display area, and performing second pixel shift driving by shifting an image having the loss of image information.

公开(公告)号：US12283210B2

公开(公告)日：2025-04-22

申请号：US18365393

申请日：2023-08-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon Lee ,  Jong Wook Kim ,  Kyoung Ho Lim

IPC: G09G3/32 ,  G09G3/00 ,  G09G3/20 ,  G09G3/3208

Abstract: A display device and a method of driving the same are provided. The method of driving the display includes a display area to display an image. The method includes performing a first first pixel shift driving by shifting an image by a first range in the display area without loss of image information due to enlargement or reduction of the image, checking whether a change of a block grayscale value is greater than or equal to a threshold in an interest area in the display area, and performing second pixel shift driving by shifting an image having the loss of image information.

公开(公告)号：US11948492B2

公开(公告)日：2024-04-02

申请号：US17879350

申请日：2022-08-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jinho Lee ,  Sungjae Park ,  Seunghwan Park ,  Namjae Lim ,  Youngwoon Choi ,  Jong Wook Kim

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2320/041

Abstract: A display device includes a display panel and a display panel driver. The display panel includes pixels. The display panel driver determines an average image load of input image data, determines an operation mode based on a grayscale value of the input image data and the average image load as a first operation mode or a second operation mode, applies a first scale factor to the input image data in the first operation mode, applies a second scale factor different from the first scale factor to the input image data in the second operation mode, and drives the display panel.

公开(公告)号：US11636813B2

公开(公告)日：2023-04-25

申请号：US17307004

申请日：2021-05-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Deokho Kang ,  Jong Wook Kim ,  Youngwoon Choi

IPC: G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.

公开(公告)号：US11170703B2

公开(公告)日：2021-11-09

申请号：US17017259

申请日：2020-09-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon Lee ,  Sang Myeon Han ,  Jong Wook Kim ,  Byoung Kwan An

IPC: G09G3/32

Abstract: There are provided a display device, driving method and sensing unit thereof, where a display device includes a display unit having pixels connected to signal lines; a sensing unit including at least one current sensor connected to at least one of the signal lines; and a compensator connected between the sensing unit and the display unit, wherein the compensator is configured to: calculate degradation weights for positions of the pixels, based on a sensing current measured by the sensing unit and a predetermined reference current value, update degradation accumulated values for the positions whenever the sensing current is measured, by accumulating degradation degrees in which the degradation weights are reflected, generate compensated grayscale values by compensating input grayscale values based on the updated degradation accumulated values, and output the compensated grayscale values to the pixels.

公开(公告)号：US11893947B2

公开(公告)日：2024-02-06

申请号：US18119299

申请日：2023-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Deokho Kang ,  Jong Wook Kim ,  Youngwoon Choi

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.

公开(公告)号：US11049444B2

公开(公告)日：2021-06-29

申请号：US16820433

申请日：2020-03-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Wook Kim ,  Eun Zi Kim ,  Byoung Kwan An ,  Seung Ho Park

IPC: G09G3/3208 ,  G09G3/3225 ,  G09G3/3275

Abstract: A display device includes: a display panel including a plurality of pixels configured to receive pixel driving currents; a current sensor configured to measure an entire driving current diverged into the pixel driving currents; and a temperature sensor configured to measure an ambient temperature of the display panel, wherein the display panel includes a degradation compensator configured to generate output grayscale values for the pixels based on the entire driving current, the ambient temperature, and input grayscale values for the pixels.

公开(公告)号：US12142173B2

公开(公告)日：2024-11-12

申请号：US18211189

申请日：2023-06-16

Applicant: Samsung Display Co., LTD.

Inventor： Jaehoon Lee ,  Jong Wook Kim

IPC: G09G3/00 ,  G09G5/37

Abstract: A display device determines a target temperature based on an average luminance of each of the panel blocks, calculates a temperature change amount of each of the panel blocks by multiplying a difference between the target temperature and a previous prediction temperature of each of the panel blocks determined before a reference period by a block temperature coefficient of the panel blocks, and calculates a current prediction temperature of each of the panel blocks by adding the temperature change amount of each of the panel blocks to the previous prediction temperature of each of the panel blocks, the panel blocks include a first panel block and second panel blocks adjacent to the first panel block, and the block temperature coefficient of the first panel block is determined based on the target temperature of the first panel block and the target temperature of each of the second panel blocks.

公开(公告)号：US11355042B2

公开(公告)日：2022-06-07

申请号：US17171505

申请日：2021-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Hoon Lee ,  Jong Wook Kim ,  Kyoung Ho Lim

IPC: G09G3/32 ,  G09G3/00 ,  G09G3/20 ,  G09G3/3208

Abstract: A display device and a method of driving the same are provided. The method of driving the display includes a display area to display an image. The method includes performing a first pixel shift driving by shifting an image by a first range in the display area without loss of image information due to enlargement or reduction of the image, checking whether a change of a block grayscale value is greater than or equal to a threshold in an interest area in the display area, and performing second pixel shift driving by shifting an image having the loss of image information.

公开(公告)号：US20210210000A1

公开(公告)日：2021-07-08

申请号：US17017259

申请日：2020-09-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Hoon Lee ,  Sang Myeon Han ,  Jong Wook Kim ,  Byoung Kwan An

IPC: G09G3/32

Abstract: There are provided a display device, driving method and sensing unit thereof, where a display device includes a display unit having pixels connected to signal lines; a sensing unit including at least one current sensor connected to at least one of the signal lines; and a compensator connected between the sensing unit and the display unit, wherein the compensator is configured to: calculate degradation weights for positions of the pixels, based on a sensing current measured by the sensing unit and a predetermined reference current value, update degradation accumulated values for the positions whenever the sensing current is measured, by accumulating degradation degrees in which the degradation weights are reflected, generate compensated grayscale values by compensating input grayscale values based on the updated degradation accumulated values, and output the compensated grayscale values to the pixels.