公开(公告)号：US11881165B2

公开(公告)日：2024-01-23

申请号：US17511620

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Hee Sook Park

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2310/08 ,  G09G2320/029 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/0626 ,  G09G2320/0653 ,  G09G2320/103 ,  G09G2330/021

Abstract: The present disclosure provides a display device. The display device includes a gain provider for gradually decreasing a gain value from a first time when a first period elapses from a time at which an enable signal is generated, and a plurality of pixels for receiving data voltages determined by the gain value and the input grayscale values. The gain provider determines a length of the first period according to a first load value based on the input grayscale values at the time at which the enable signal is generated.

公开(公告)号：US11881152B2

公开(公告)日：2024-01-23

申请号：US17645153

申请日：2021-12-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun Pyun ,  Jang Mi Lee

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/04

Abstract: A display device includes a power supply generating a first power voltage, a second power voltage, and a third power voltage. The display device further includes a first power line to which the first power voltage is applied, a second power line to which the second power voltage is applied, and a readout line to which the third power voltage is applied. The display device further includes a display panel, which includes a pixel. The pixel includes a light emitting element connected between the first power line and the second power line, and a switching transistor connected between one electrode of the light emitting element and the readout line. The power supply changes a voltage level of the third power voltage based on a total current flowing from the power supply to the display panel according to the first and second power voltages.

公开(公告)号：US11741889B2

公开(公告)日：2023-08-29

申请号：US17897720

申请日：2022-08-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jang Mi Lee ,  Ki Hyun Pyun ,  Hyun Joo Seo

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes: a pixel component including pixels; a timing controller, which generates adjusted image data by converting grayscale values of input image data based on a gain value and generates first and second control signals control signal in response to an input control signal; a scan driver, which supplies a scan signal to the pixels in response to the first control signal; a data driver, which generates a data signal corresponding to the adjusted image data and supplies the data signal to the pixels based on the second control signal and the adjusted image data, and an image controller, which analyzes an input image in the input image data and gradually decreases the gain value during a first control period when the input image is a still image.

公开(公告)号：US11735092B2

公开(公告)日：2023-08-22

申请号：US17700205

申请日：2022-03-21

Applicant: Samsung Display Co., Ltd.

Inventor： Su Min Yang ,  Wook Lee ,  Hye Ji Kim ,  Ki Hyun Pyun

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2007 ,  G09G3/32 ,  G09G2300/0809 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/029

Abstract: A display device includes first pixels partitioned into a plurality of blocks, each of the plurality of blocks being categorized as a first block or a second block, a sensor configured to generate first sensing data for at least two of the first pixels in each of the plurality of blocks during a first period, and a sensing controller configured to generate interpolated data for the first pixels that are not sensed by the sensor by interpolating the first sensing data, for the first block, and configured to forgo interpolation of the first sensing data, for the second block. The sensor generates second sensing data for the first pixels that are not sensed by the sensor, for the second block, during a second period after the first period.

公开(公告)号：US11657767B2

公开(公告)日：2023-05-23

申请号：US17536181

申请日：2021-11-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun Pyun ,  Sung In Kang ,  Kyun Ho Kim

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/027 ,  G09G2320/0233

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

公开(公告)号：US11645974B2

公开(公告)日：2023-05-09

申请号：US17663345

申请日：2022-05-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun Pyun ,  Jang Mi Lee ,  Eun Jin Choi

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2360/08

Abstract: A display device includes a pixel unit including pixels, a timing controller configured to generate image data based on input image data, a data driver configured to generate a data signal corresponding to the image data and supply the data signal to the pixels, a power supply configured to supply a power voltage to the pixel unit, and a power controller configured to calculate a load value and a peak grayscale value based on the input image data, and to generate a power control signal to change a voltage level of the power voltage based on the load value and the peak grayscale value.

公开(公告)号：US11488562B2

公开(公告)日：2022-11-01

申请号：US17133207

申请日：2020-12-23

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Eun Jin Choi

IPC: G09G5/10 ,  G09G3/20

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：US11361731B2

公开(公告)日：2022-06-14

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：US11350528B2

公开(公告)日：2022-05-31

申请号：US17375850

申请日：2021-07-14

Applicant: Samsung Display Co., LTD.

Inventor： Ki Hyun Pyun ,  Myoung Seop Song

IPC: H05K1/14 ,  G09G3/32

Abstract: A display device includes: a display panel including a plurality of pixels; a first flexible printed circuit board attached to the display panel and electrically connected thereto; a first printed circuit board attached to the first flexible printed circuit board and electrically connected thereto; a data driver which applies a data voltage to the plurality of pixels, receives a voltage flowing to the plurality of pixels and generates mobility sensing information based on the voltage flowing to the plurality of pixels; and a timing controller which detects a first misalignment between the first printed circuit board and the first flexible printed circuit board, and a second misalignment between the display panel and the first flexible printed circuit board, based on the mobility sensing information.

公开(公告)号：US11348532B2

公开(公告)日：2022-05-31

申请号：US16858441

申请日：2020-04-24

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Young Soo Sohn

IPC: G09G3/3266 ,  G09G3/3291 ,  G09G3/32

Abstract: The display device includes a first pixel connected to a first scan line and a first data line, a second pixel connected to a second scan line and the first data line, a scan driver configured to supply a scan signal to the first scan line and the second scan line, and a data driver connected to the first data line. The data driver provides a first data signal to the first pixel when the scan signal is applied to the first scan line, the data driver provides a second data signal to the second pixel when the scan signal is applied to the second scan line, and a length of a first period in which the first data signal is provided is different from a length of a second period in which the second data signal is provided.