公开(公告)号：US20220366831A1

公开(公告)日：2022-11-17

申请号：US17877594

申请日：2022-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Won Jin SEO ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device includes a plurality of pixels grouped into blocks divided into block rows extending in a first direction and arranged in a second direction, wherein each block includes two or more pixels connected to a first power source line, and each pixel is assigned with a grayscale value in a range of grayscale values that is divided into a plurality of grayscale sections; and a first power source voltage adjuster selecting a reference block row, and determining a magnitude of a first power source voltage supplied to the first power source line based on a number of blocks in the reference block row having a grayscale section that is same as a maximum grayscale section of the reference block row. The maximum grayscale section corresponds to a grayscale section that includes a largest grayscale value having a grayscale value ratio greater than a minimum ratio.

公开(公告)号：US20240021143A1

公开(公告)日：2024-01-18

申请号：US18107409

申请日：2023-02-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Sik YOON ,  Jong Woon KIM ,  Won Jin SEO ,  Ki Hyun SUNG ,  Ye Seul LEE ,  Dae Ho HWANG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2320/0271 ,  G09G2330/04

Abstract: A display device includes: a pixel component including pixels; a timing controller configured to calculate a load variation between previous input grayscale values corresponding to a previous frame and current input grayscale values corresponding to a current frame; a current sensor configured to sense a current flowing through the pixels during the current frame and generate a global current value for the sensed current, store time points at which the global current value becomes equal to preset threshold current values, respectively, and generate a global current variation rate corresponding to a section between the stored time points of the current frame; and a scale factor provider configured to control a scale factor in a period of the current frame in the case where the load variation is equal to or more than a reference load variation.

公开(公告)号：US20220277707A1

公开(公告)日：2022-09-01

申请号：US17745160

申请日：2022-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Jin CHOI ,  Won Jin SEO ,  Ki Hyun PYUN

IPC: G09G5/10

Abstract: Provided herein may be a display device. The display device may include a display panel including a plurality of unit blocks disposed in a display area, the plurality of unit blocks including a first area displaying a logo or a banner, a second area having largest load value and a third area disposed between the first area and the second area, a display panel driver configured to generate data voltages based on input image data, and a zonal compensator configured to receive the input image data , to calculate load values of the input image data for the plurality of unit blocks, respectively, and to control luminance of each of the first area and the third area based on a location difference between the first area and the second area and a load value difference between the first area and the second area.

公开(公告)号：US20240135863A1

公开(公告)日：2024-04-25

申请号：US18221893

申请日：2023-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jin SEO ,  Tae Wan KIM ,  Hwa An SUNG ,  Hyun Sik YOON ,  Jeong Ah LEE ,  Dae Ho HWANG

IPC: G09G3/32 ,  H05K1/14 ,  H05K1/18

CPC classification number: G09G3/32 ,  H05K1/142 ,  H05K1/189 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2330/021 ,  H05K2201/10128 ,  H05K2201/10151

Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.

公开(公告)号：US20220157225A1

公开(公告)日：2022-05-19

申请号：US17459554

申请日：2021-08-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun Jin CHOI ,  Won Jin SEO ,  Ki Hyun PYUN

IPC: G09G3/32

Abstract: A display device includes a pixel unit including pixels, a compensator which generate compensation image data by scaling grayscale values of input image data based on temperature data corresponding to an ambient temperature of the pixel unit, a timing controller which generates image data based on the compensation image data, and a data driver which generates a data signal corresponding to the image data and supply the data signal to the pixels. The compensator scales the grayscale values of the input image data in a way such that the grayscale values of the input image data decrease when the ambient temperature is greater than a reference temperature. The compensator scales the grayscale values of the input image data in a way such that the grayscale values of the input image data increase when the ambient temperature is less than the reference temperature.

公开(公告)号：US20210264843A1

公开(公告)日：2021-08-26

申请号：US17024608

申请日：2020-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Won Jin SEO ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device includes a plurality of pixels grouped into blocks divided into block rows extending in a first direction and arranged in a second direction, wherein each block includes two or more pixels connected to a first power source line, and each pixel is assigned with a grayscale value in a range of grayscale values that is divided into a plurality of grayscale sections; and a first power source voltage adjuster selecting a reference block row, and determining a magnitude of a first power source voltage supplied to the first power source line based on a number of blocks in the reference block row having a grayscale section that is same as a maximum grayscale section of the reference block row. The maximum grayscale section corresponds to a grayscale section that includes a largest grayscale value having a grayscale value ratio greater than a minimum ratio.

公开(公告)号：US20150091949A1

公开(公告)日：2015-04-02

申请号：US14219708

申请日：2014-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： Ho In KIM ,  Kyung Won KANG ,  Young-Sun KWAK ,  Sang An KWON ,  Hyeon-Do PARK ,  Won Jin SEO ,  Myung Bo SIM ,  Yoon Seop SHIM

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G2320/0285 ,  G09G2320/0673

Abstract: A display device may include a display panel that includes a first region and a second region. The display device may include a controller that may receive a first gamma value and a second gamma value, use the first gamma value or a third gamma value to generate first image data, use the first gamma value and the second gamma value to generate a fourth gamma value, and use the fourth gamma value to generate second image data. The display device may include a data driver that may use the first image data and the second image data to generate a first data voltage set and a second data voltage set. The first region may use the first data voltage set to display a first portion of an image. The second region may use the second data voltage set to display a second portion of the image.

Abstract translation: 显示装置可以包括包括第一区域和第二区域的显示面板。 显示装置可以包括可以接收第一伽马值和第二伽马值的控制器，使用第一伽马值或第三伽马值来产生第一图像数据，使用第一伽玛值和第二伽马值来产生第四伽玛值 伽玛值，并使用第四个伽玛值来生成第二个图像数据。 显示装置可以包括可以使用第一图像数据和第二图像数据来生成第一数据电压组和第二数据电压组的数据驱动器。 第一区域可以使用第一数据电压集来显示图像的第一部分。 第二区域可以使用第二数据电压组来显示图像的第二部分。

公开(公告)号：US20240233616A9

公开(公告)日：2024-07-11

申请号：US18221893

申请日：2023-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jin SEO ,  Tae Wan KIM ,  Hwa An SUNG ,  Hyun Sik YOON ,  Jeong Ah LEE ,  Dae Ho HWANG

IPC: G09G3/32 ,  H05K1/14 ,  H05K1/18

CPC classification number: G09G3/32 ,  H05K1/142 ,  H05K1/189 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2330/021 ,  H05K2201/10128 ,  H05K2201/10151

Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.

公开(公告)号：US20230419881A1

公开(公告)日：2023-12-28

申请号：US18133998

申请日：2023-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Won Jin SEO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2320/041

Abstract: A display device of the disclosure includes a grayscale converter which converts input grayscales into output grayscales based on a scale factor, a data driver which converts the output grayscales into data voltages, a plurality of pixels which receives the data voltages and displays an image based on the data voltages, and a current sensor which provides a sensing current by sensing a first power current supplied to the plurality of pixels to display the image. When a load corresponding to the input grayscales is greater than a minimum load, the grayscale converter adjusts a change amount of the scale factor based on a current difference between a target current corresponding to the load and the sensing current.

公开(公告)号：US20210304701A1

公开(公告)日：2021-09-30

申请号：US17079281

申请日：2020-10-23

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Jin CHOI ,  Won Jin SEO ,  Ki Hyun PYUN

IPC: G09G5/10

Abstract: Provided herein may be a display device. The display device may include a display panel including a plurality of unit blocks disposed in a display area, the plurality of unit blocks including a first area displaying a logo or a banner, a second area having largest load value and a third area disposed between the first area and the second area, a display panel driver configured to generate data voltages based on input image data, and a zonal compensator configured to receive the input image data, to calculate load values of the input image data for the plurality of unit blocks, respectively, and to control luminance of each of the first area and the third area based on a location difference between the first area and the second area and a load value difference between the first area and the second area.