公开(公告)号：US11817031B2

公开(公告)日：2023-11-14

申请号：US17940429

申请日：2022-09-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jinho Lee ,  Sungjae Park ,  Seunghwan Park ,  Youngwoon Choi ,  Seungho Park ,  Kyoungho Lim ,  Namjae Lim

IPC: G09G3/20 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/36

CPC classification number: G09G3/2044 ,  G09G3/2051 ,  G09G3/2055 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/3685 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2320/0271 ,  G09G2340/0435 ,  G09G2360/16

Abstract: A display device includes: a display panel including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines, respectively; a scan driver, which provides a scan signal to the pixels through the scan lines; a data driver, which provides a data voltage to the pixels through the data lines; and a controller, which controls the scan driver and the data driver, and receives input image data at a variable input frame frequency. The controller determines whether a gray scale value of the input image data is included in any range of a first gray scale range and a second gray scale range different from the first gray scale range, and dithers the input image data when it is determined that the gray scale value of the input image data is included the first gray scale range.

公开(公告)号：US11763745B2

公开(公告)日：2023-09-19

申请号：US17937543

申请日：2022-10-03

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/0666

Abstract: A display device includes a display panel including a plurality of pixels, a current sensor that senses a sensing current that flows through the pixels, and a data compensator. The data compensator calculates a target current from an image frame of input image data using a current deviation for each position of the image frame and a current contribution ratio for each color of the image frame, and that generates a scale factor by comparing the target current and the sensing current. The display device further includes a timing controller that generates output image data by scaling grayscale values of the input image data using the scale factor; and a data driver that provides a data signal corresponding to the output image data to the pixels.

公开(公告)号：US20230162655A1

公开(公告)日：2023-05-25

申请号：US17823182

申请日：2022-08-30

Applicant: SAMSUNG DISPLAY CO., LTD

Inventor： YOUNGWOON CHOI ,  Sungjae Park ,  Seunghwan Park ,  Jinho Lee ,  Namjae Lim

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2096 ,  G09G3/3233 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2330/028 ,  G09G2330/021

Abstract: A display device includes a display panel, a driving controller, and a voltage generator. The display panel includes a plurality of pixels. Each of the pixels receives a driving voltage through a first voltage line. The driving controller receives an input image signal including first to third color signals and outputs a voltage control signal for controlling a voltage level of the driving voltage based on the first to third color signals. The voltage generator provides the driving voltage to the first voltage line and determines the voltage level of the driving voltage based on the voltage control signal. The driving controller determines first to third gate-source voltages respectively corresponding to the first to third color signals and outputs the voltage control signal based on the first to third gate-source voltages.

公开(公告)号：US11302261B2

公开(公告)日：2022-04-12

申请号：US16833734

申请日：2020-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil Kim ,  Namjae Lim ,  Hoisik Moon ,  Jae Sung Bae

IPC: G09G3/3275 ,  G09G3/36

Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.

公开(公告)号：US20170221404A1

公开(公告)日：2017-08-03

申请号：US15417827

申请日：2017-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sungjae Park ,  Jinpil Kim ,  Jung-won Kim ,  Namjae Lim

IPC: G09G3/20 ,  G09G3/34 ,  G09G3/36

CPC classification number: G09G3/2092 ,  G09G3/3406 ,  G09G5/04 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2340/06 ,  G09G2360/16

Abstract: A display apparatus includes a mapper configured to map a primary color data including information on three primary colors to generate mapping primary data including red, green, and blue information and mapping white data including white information, a splitter configured to generate split primary data based on the mapping primary data and one gamma curve, and to generate split white data based on the mapping white data and another gamma curve different from the one gamma curve, and a compensator configured to compensate for the split primary data based on a target color coordinate and a primary color coordinate corresponding to a color coordinate of the split primary data to generate compensated primary data.

公开(公告)号：US20170069244A1

公开(公告)日：2017-03-09

申请号：US15170857

申请日：2016-06-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Namjae Lim ,  Sungjae Park ,  Jung-won Kim ,  Jinpil Kim ,  Jaesung Bae

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/3607 ,  G09G5/06 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2340/06

Abstract: A display device including a pixel including a mixed sub pixel configured to receive a mixed data voltage, the mixed sub pixel including a lower pixel configured to display white light having a white color corresponding to the mixed data voltage, and an upper pixel configured to display an auxiliary color light having an auxiliary color corresponding to the mixed data voltage.

Abstract translation: 一种显示装置，包括包括被配置为接收混合数据电压的混合子像素的像素，所述混合子像素包括被配置为显示具有对应于所述混合数据电压的白色的白光的下部像素，以及被配置为显示 具有与混合数据电压对应的辅助色的辅助色光。

公开(公告)号：US12260819B2

公开(公告)日：2025-03-25

申请号：US18213898

申请日：2023-06-26

Applicant: Samsung Display Co., Ltd.

Inventor： Namjae Lim ,  Seokgyu Ban ,  Sangmyeon Han ,  Seungho Park ,  Byoungkwan An

IPC: G09G3/3233 ,  G09G3/20

Abstract: A display device includes a display unit which includes a plurality of pixels, a degradation controller which includes a voltage compensator configured to calculate a driving voltage increase amount based on a degradation amount of a maximum degradation pixel among the pixels and a global current controller configured to calculate calculates a first scale factor for compensating a power increase amount according to the driving voltage increase amount, a driving voltage provider which is configured to increase a driving voltage provided to the pixels based on the driving voltage increase amount, a data compensator which is configured to generate output image data by scaling the first scale factor to grayscale values of input image data, and a data driver which is configured to provide data voltages to the pixels based on the output image data.

公开(公告)号：US11961493B2

公开(公告)日：2024-04-16

申请号：US17943296

申请日：2022-09-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jinho Lee ,  Seunghwan Park ,  Youngwoon Choi ,  Sungjae Park ,  Seungho Park ,  Kitae Yoon ,  Namjae Lim

IPC: G09G5/10 ,  G09G3/3233

CPC classification number: G09G5/10 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/16 ,  G09G2360/16

Abstract: A display device including: a display panel including first through N-th pixel rows; and a panel driver configured to sequentially receive first through N-th line data for the first through the N-th pixel rows in each frame period, and to drive the display panel based on the first through the N-th line data, the panel driver including: a current control circuit configured to determine a current control value for a (K+1)-th pixel row based on the first through K-th line data for the first through K-th pixel rows received in a current frame period and (K+1)-th through the N-th line data for the (K+1)-th through the N-th pixel rows received in a previous frame period; and a data correction circuit configured to correct the (K+1)-th line data for the (K+1)-th pixel row based on the current control value in the current frame period.

公开(公告)号：US11056067B2

公开(公告)日：2021-07-06

申请号：US16701913

申请日：2019-12-03

Applicant: Samsung Display Co., Ltd.

Inventor： Tae-Jong Jun ,  Daeki Park ,  Namjae Lim ,  Jae Sung Bae ,  Sanghyun Lee

IPC: G09G3/36 ,  G09G5/14

Abstract: A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, divides a border portion of the display panel into edge regions and corner regions, generates final image data by compensating the input image data such that luminances of the edge regions are increased by a first multiplicative factor and luminances of the corner regions are increased by a second multiplicative factor greater than the first multiplicative factor, and drives the display panel based on the final image data.

公开(公告)号：US10922800B2

公开(公告)日：2021-02-16

申请号：US16380324

申请日：2019-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil Kim ,  Hoisik Moon ,  Jaesung Bae ,  Jeongwoon Lee ,  Namjae Lim

IPC: G09G3/36 ,  G06T5/00 ,  G06T5/50

Abstract: An image processing circuit includes a memory, a gamma converter which converts a first image data signal of a frame to a current image data signal thereof corresponding to first or second gamma types based on a spatial distribution pattern, a compression circuit which separates the current image data signal into first and second gamma signals corresponding to the first and second gamma types and compresses the first and second gamma signals to first and second compression gamma signals to store the first and second compression gamma signals, a decompression circuit which output a previous image data signal of a previous frame by decompressing the first and second compression gamma signals and combines first and second decompression gamma signals, and a gamma correction circuit which performs a gamma adjustment based on current and previous image data signals to output a second image data signal.