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：US20220084453A1

公开(公告)日：2022-03-17

申请号：US17235202

申请日：2021-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Min Young PARK ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device includes: a pixel unit including pixels connected to data lines and scan lines, and signal output lines, where at least one signal output line of the signal output lines is connected to each of the scan lines through a contact point; a data driver disposed at one side of the pixel unit to drive the data lines; a scan driver disposed at the one side of the pixel unit together with the data driver to drive the scan lines; and a timing controller controlling the data driver and the scan driver. The data driver includes: output buffers outputting data signals to the data lines, respectively; and a slew rate controller adjusting a slew rate of the data signals by controlling a bias value supplied to the output buffers in units of pixel rows based on positions of the pixels and a change in the data signals.

公开(公告)号：US20230052687A1

公开(公告)日：2023-02-16

申请号：US17978057

申请日：2022-10-31

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Eun Jin CHOI

IPC: G09G5/10

Abstract: A display device comprises a display area including a plurality of pixels, a peak driving determination part determining peak driving based on an input image signal, a normal driving compensation part including a first luminance lookup table having a first luminance as a peak luminance, a peak driving compensation part including a second luminance lookup table having a second luminance higher than the first luminance as a peak luminance, a compensation adjusting part that generates a peak driving gamma curve by smoothing a first and second luminance gamma curves corresponding to the first and second luminance lookup tables and generates a peak driving lookup table according to the peak driving gamma curve, and a signal controller generating an image data signal by applying one normal driving lookup table to a portion of the display area and applying the peak driving lookup table to an other portion of the display area.

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.

公开(公告)号：US20230101159A1

公开(公告)日：2023-03-30

申请号：US18075777

申请日：2022-12-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G3/20 ,  G09G3/36 ,  G09G3/3275 ,  G09G5/00

Abstract: A display device including: a display area including pixels connected to data lines and scan lines, the display area including a plurality of signal output lines connected to each of the scan lines through a contact; a data driver including a first data driving circuit at a side of the display area; a scan driver disposed at the side of the display area; and a timing controller, wherein the first data driving circuit includes: output buffers which respectively output data signals to first to k-th data lines (k is an integer greater than 2) of the data lines; and an output delay controller which transmits the data signals to the output buffers through first to k-th transmission lines, and controls delay times of the data signals output to the first to k-th transmission lines based on position information of a pixel row to which the data signals are supplied.

公开(公告)号：US20210281263A1

公开(公告)日：2021-09-09

申请号：US17087476

申请日：2020-11-02

Applicant: Samsung Display Co., Ltd.

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

IPC: H03K19/0175 ,  H04B1/04 ,  G09G3/3233

Abstract: An interface system including: a receiver; a transmitter configured to transmit a signal including a common mode voltage to the receiver through transmission lines; and a plurality of bias circuits configured to adjust the common mode voltage of the signal, wherein the bias circuits are configured to receive a bias control bit to generate a biased common mode voltage.

公开(公告)号：US20210150971A1

公开(公告)日：2021-05-20

申请号：US16920795

申请日：2020-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device and a method for driving the same are described. The display device includes a plurality of pixels, a driving characteristic compensator for sensing driving characteristics of the pixels, generating first power source voltage information according to a change in the driving characteristics, and updating an RGB gamma look up table, a memory for storing the first power source voltage information and the RGB gamma look-up table, a power source manager for generating a first power source voltage based on the first power source voltage information, and a gamma controller for generating reference gamma voltages by dividing the first power source voltage supplied from the power source manager based on the RGB gamma look-up table. Therefore, power consumption of the display device may be reduced.

公开(公告)号：US20230252955A1

公开(公告)日：2023-08-10

申请号：US18134431

申请日：2023-04-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G5/10 ,  G09G3/20

CPC classification number: G09G5/10 ,  G09G3/20 ,  G09G2320/0271 ,  G09G2320/0646

Abstract: A display device includes: a pixel part partitioned into blocks; a scale factor provider which calculates a first load value of input image data for the pixel part, calculates a second load value of the input image data for each block, and generates a scale factor based on the first and second load values; and a timing controller which generates image data by scaling gray values of the input image data based on the scale factor. The scale factor provider generates a first scale factor for commonly controlling the gray values for the blocks based on the first load value, when the first load value is greater than or equal to a reference load value, and generates a second scale factor for controlling gray value for each block based on the first and second load values, when the first load value is less than the reference load value.

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：US20220157224A1

公开(公告)日：2022-05-19

申请号：US17410481

申请日：2021-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G3/32 ,  G09G3/20

Abstract: A display device includes pixels divided into blocks, a timing controller to generate image data based on input image data, a data driver to generate a data signal corresponding to the image data and supply the data signal to the pixels, and power supply to supply a power voltage to the pixels. In addition, the display device includes a power controller to calculate a first load value corresponding to the pixels, second load values corresponding to each of the blocks, and first peak grayscale values corresponding to each of the blocks based on the input image data. The power controller generates a power control signal to change a voltage level of the power voltage based on the first load value, the second load values, and the first peak grayscale values.