公开(公告)号：US11238810B2

公开(公告)日：2022-02-01

申请号：US16923477

申请日：2020-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： HongSoo Kim ,  Sangan Kwon ,  Jinyoung Roh ,  Sehyuk Park ,  Sukhun Lee ,  Hyojin Lee

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line of the display panel. The data driver outputs a data voltage to a data line of the display panel. The driving controller controls operations of the gate driver and the data driver and drive a still image display area and a video image display area of a display area of the display panel in different driving frequencies. The driving controller includes a still image determiner which divides the input image data into a plurality of still image determining blocks, respectively determines whether the still image determining blocks represent a still image or a video image and determines a boundary between the still image display area and the video image display area.

公开(公告)号：US12165586B2

公开(公告)日：2024-12-10

申请号：US18234105

申请日：2023-08-15

Applicant: Samsung Display Co., LTD.

Inventor： Sukhun Lee ,  Bon-Seog Gu ,  Hongsoo Kim ,  Myungwoo Lee

IPC: G09G3/3233

Abstract: A display device includes a display panel including a plurality of pixels and that displays an image in each of a plurality of frames, a driving controller that drives the plurality of frames with a plurality of driving frequencies, respectively, and a voltage controller that provides a first voltage and a second voltage, and the driving controller drives one of the plurality of frames with a first driving frequency and drives another one of the plurality of frames with a second driving frequency, and the voltage controller provides the second voltage to be repeated in a first period in the one of the plurality of frames and provides the second voltage to be repeated in a second period in the another one of the plurality of frames.

公开(公告)号：US11568837B2

公开(公告)日：2023-01-31

申请号：US17411000

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Sukhun Lee ,  Bon-Seog Gu

IPC: G09G5/373 ,  G06T7/10

Abstract: A display device includes: a display panel including a surrounding display area, below which at least one panel driving circuit is positioned, and a main display area surrounded by the surrounding display area, the display panel including first pixels having a first pixel density and disposed in the surrounding display area and second pixels having a second pixel density greater than the first pixel density and disposed in the main display area; and a display panel driver to divide an input image to be displayed on the display panel in each frame into a first image to be displayed on the surrounding display area and a second image to be displayed on the main display area, calculate a luminance deviation of the first image, and determine whether to display the first image in the surrounding display area based on the luminance deviation of the first image.

公开(公告)号：US11538421B2

公开(公告)日：2022-12-27

申请号：US16824377

申请日：2020-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hongsoo Kim ,  Sehyuk Park ,  Hyo Jin Lee ,  Sangan Kwon ,  Jinyoung Roh ,  Sukhun Lee ,  Jun Heyung Jung

IPC: G09G3/3291

Abstract: A display device includes display device includes: a display panel including a plurality of pixels; a data driver configured to generate data voltages based on output image data, and to provide the data voltages to the plurality of pixels; and a controller configured to receive input image data and input frequency information from a host processor, and to provide the output image data to the data driver, wherein the controller includes an adaptive refresh block configured to: determine a target frequency by analyzing the input image data; determine a masking ratio based on an input frequency represented by the input frequency information and the target frequency; and selectively output the input image data as the output image data by performing a masking operation on the input image data with the masking ratio.

公开(公告)号：US11257435B2

公开(公告)日：2022-02-22

申请号：US16931509

申请日：2020-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： HongSoo Kim ,  Sehyuk Park ,  Sangan Kwon ,  Jinyoung Roh ,  Sukhun Lee ,  Hyojin Lee ,  Junheyung Jung

IPC: G09G5/10 ,  G09G3/3258 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to the display panel. The data driver outputs a data voltage to the display panel. The driving controller selectively determines a driving mode of the display apparatus between one of a normal driving mode and a low frequency driving mode, and determines a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage storing flicker values for grayscale values of the input image data and a data remapper converting the grayscale value of the input image data to decrease a size of a maximum frequency grayscale area corresponding to a maximum driving frequency in the low frequency driving mode.

公开(公告)号：US11955102B2

公开(公告)日：2024-04-09

申请号：US18102762

申请日：2023-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sukhun Lee ,  Bon-Seog Gu

IPC: G09G5/373 ,  G06T7/10

CPC classification number: G09G5/373 ,  G06T7/10 ,  G06T2207/20021 ,  G06T2207/20132 ,  G09G2340/0407 ,  G09G2360/16

Abstract: A display device includes: a display panel including a surrounding display area, below which at least one panel driving circuit is positioned, and a main display area surrounded by the surrounding display area, the display panel including first pixels having a first pixel density and disposed in the surrounding display area and second pixels having a second pixel density greater than the first pixel density and disposed in the main display area; and a display panel driver to divide an input image to be displayed on the display panel in each frame into a first image to be displayed on the surrounding display area and a second image to be displayed on the main display area, calculate a luminance deviation of the first image, and determine whether to display the first image in the surrounding display area based on the luminance deviation of the first image.

公开(公告)号：US11955091B2

公开(公告)日：2024-04-09

申请号：US17744112

申请日：2022-05-13

Applicant: Samsung Display Co., Ltd.

Inventor： Sukhun Lee ,  Kihyun Pyo

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/027 ,  G09G2320/0257 ,  G09G2330/021

Abstract: A method of driving a display device, which includes a plurality of segments, each including a plurality of pixels, includes comparing grayscales of first image data of a first frame with respect to a segment among the plurality of segments and grayscales of a second image data of a second frame after the first frame with respect to the segment, modulating the second image data to generate first modulated data when the grayscales of the first image data are equal to the grayscales of the second image data, and providing data voltages to the segment based on the first modulated data.

公开(公告)号：US20230178051A1

公开(公告)日：2023-06-08

申请号：US18102762

申请日：2023-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sukhun Lee ,  Bon-Seog Gu

IPC: G09G5/373 ,  G06T7/10

CPC classification number: G09G5/373 ,  G06T7/10 ,  G06T2207/20021 ,  G06T2207/20132 ,  G09G2340/0407 ,  G09G2360/16

Abstract: A display device includes: a display panel including a surrounding display area, below which at least one panel driving circuit is positioned, and a main display area surrounded by the surrounding display area, the display panel including first pixels having a first pixel density and disposed in the surrounding display area and second pixels having a second pixel density greater than the first pixel density and disposed in the main display area; and a display panel driver to divide an input image to be displayed on the display panel in each frame into a first image to be displayed on the surrounding display area and a second image to be displayed on the main display area, calculate a luminance deviation of the first image, and determine whether to display the first image in the surrounding display area based on the luminance deviation of the first image.

公开(公告)号：US11631361B2

公开(公告)日：2023-04-18

申请号：US17412804

申请日：2021-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Sukhun Lee

IPC: G09G3/20

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel includes an edge area having a rounded shape in a first state and having a flat shape in a second state. The gate driver applies a gate signal to a gate line of the display panel, the data driver applies a data voltage to a data line of the display panel, and the driving controller processes input image data according to the first state and the second state. The display panel includes a first display area having a first pixel density and a second display area having a second pixel density less than the first pixel density. The second display area corresponds to the edge area of the display panel.

公开(公告)号：US11620952B2

公开(公告)日：2023-04-04

申请号：US17587325

申请日：2022-01-28

Applicant: Samsung Display Co., Ltd.

Inventor： HongSoo Kim ,  Sangan Kwon ,  Jinyoung Roh ,  Sehyuk Park ,  Sukhun Lee ,  Hyojin Lee

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line of the display panel. The data driver outputs a data voltage to a data line of the display panel. The driving controller controls operations of the gate driver and the data driver and drive a still image display area and a video image display area of a display area of the display panel in different driving frequencies. The driving controller includes a still image determiner which divides the input image data into a plurality of still image determining blocks, respectively determines whether the still image determining blocks represent a still image or a video image and determines a boundary between the still image display area and the video image display area.