公开(公告)号：US20240233600A1

公开(公告)日：2024-07-11

申请号：US18418322

申请日：2024-01-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Woong PARK

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G3/2096 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2360/06 ,  G09G2360/16

Abstract: A display device including: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.

公开(公告)号：US20200243016A1

公开(公告)日：2020-07-30

申请号：US16849325

申请日：2020-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Woong PARK ,  Ho Suk MAENG ,  Weon Jun CHOE

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3266 ,  G09G3/20

Abstract: A display device driven in one of a first mode and a second mode includes a first pixel area which includes first pixels, a second pixel area which includes the second pixels, a first boundary area which is included in the second pixel area and to be positioned between boundary portions of the first pixel area and the second pixel area, and a luminance controller which controls first boundary data corresponding to the first boundary area so that luminance of the first boundary area is gradually changed corresponding to a first data signal applied to the first pixels and the second pixels when the display device is driven in the second mode.

公开(公告)号：US20200219432A1

公开(公告)日：2020-07-09

申请号：US16733854

申请日：2020-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong PARK ,  Jae Gwan JEON ,  Nam Gon CHOI

IPC: G09G3/20

Abstract: A display device includes a display unit including a plurality of pixels, a data converter to receive grayscale values respectively corresponding to the plurality of pixels, generate first compensated grayscale values by remapping the grayscale values of a first grayscale range to the first compensated grayscale value of a second grayscale range, and generate second compensated grayscale values by compensating for the first compensated grayscale values based on first compensated grayscale values of adjacent pixels, and a data driver to generate data signals based on the second compensated grayscale values and provide the data signals to the plurality of pixels of display unit, wherein adjacent pixels of a target pixel correspond to pixels adjacent to the target pixel, and wherein at least one of the adjacent pixels emits light having a color different from that of the target pixel.

公开(公告)号：US20200043419A1

公开(公告)日：2020-02-06

申请号：US16514909

申请日：2019-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong PARK

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266

Abstract: A display device includes: a plurality of pixels each of which includes a light emitting element and a driving transistor having a source region separated from a drain region by a first distance to control an amount of current flowing through the light emitting element; a timing controller to convert a first image data input into a second image data, using a data correction coefficient set corresponding to the first distance of one of the plurality of pixels; and a data driver to generate a data signal corresponding to the second image data and supplying the data signal to the one of the plurality of pixels. A method of compensating for degradation of a display device also is disclosed.

公开(公告)号：US20240071293A1

公开(公告)日：2024-02-29

申请号：US18323978

申请日：2023-05-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Kyung SONG ,  Jong Woong PARK ,  Hye Sang PARK

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2330/021 ,  G09G2340/0457

Abstract: A display device includes a display panel. The display panel includes sub-pixels. A driver converts first frame data corresponding to a first pixel arrangement of the sub-pixels into second frame data corresponding to a second pixel arrangement and provides data signals corresponding to second frame data to the sub-pixels having the second pixel arrangement. The driver includes a padding circuit and a rendering circuit. The padding circuit converts the first frame data into padding data by adding a padding value to at least one of a front end and a rear end of each line data of the first frame data. The rendering circuit generates the second frame data by applying a rendering filter to the padding data.

公开(公告)号：US20220262318A1

公开(公告)日：2022-08-18

申请号：US17732549

申请日：2022-04-29

Applicant: Samsung Display Co., LTD.

Inventor： Jong Woong PARK ,  Takeshi KATO

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device includes dots and a grayscale correction unit. Each dot among the dots includes a first pixel of a first color, a second pixel of a second color, and a third pixel of a third color. The grayscale correction unit is configured to generate corrected grayscale values for a target dot via application of weights to grayscale values of the target dot and grayscale values of neighboring dots of the target dot among the dots. The grayscale correction unit is configured to determine the weights based on the grayscale values of the target dot.

公开(公告)号：US20210142738A1

公开(公告)日：2021-05-13

申请号：US17155554

申请日：2021-01-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong PARK

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device providing grayscale correction to pixels in a plurality of dots which can display an image frame in which aliasing is relaxed for various pixel arrangement structures.

公开(公告)号：US20210125567A1

公开(公告)日：2021-04-29

申请号：US17140735

申请日：2021-01-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong PARK

IPC: G09G3/3275 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233

Abstract: A display device includes: a plurality of pixels each of which includes a light emitting element and a driving transistor having a source region separated from a drain region by a first distance to control an amount of current flowing through the light emitting element; a timing controller to convert a first image data input into a second image data, using a data correction coefficient set corresponding to the first distance of one of the plurality of pixels; and a data driver to generate a data signal corresponding to the second image data and supplying the data signal to the one of the plurality of pixels. A method of compensating for degradation of a display device also is disclosed.

公开(公告)号：US20200027401A1

公开(公告)日：2020-01-23

申请号：US16413604

申请日：2019-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong PARK

IPC: G09G3/3258 ,  H01L27/32

Abstract: An organic light emitting display device includes: a display unit including a plurality of pixels each coupled to a first scan line, a second scan line, and a data line; a scan driver configured to supply, to the display unit, a plurality of first scan pulses corresponding to a bias period and a second scan pulse corresponding to a data write period after the bias period through the respective first and second scan lines; an emission driver configured to supply an emission control signal to the display unit through emission control lines; a data driver configured to supply a data voltage to the display unit through the data lines; and a power supply configured to commonly supply, to the pixels, an initialization voltage, the initialization voltage having a voltage level switching between a first voltage level and a second voltage level in a preset period.

公开(公告)号：US20250140153A1

公开(公告)日：2025-05-01

申请号：US18671367

申请日：2024-05-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seok Jeong SONG ,  Jong Woong PARK ,  Ji Yeon BAIK

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display device includes: a pixel; a grayscale converter that applies a compensation value to generate an output grayscale; and a controller that provides a data voltage corresponding to the output grayscale to the pixel. The grayscale converter generates first stress value and second stress value based on the output grayscale, adds the first stress value to a first stress accumulation value to which a first accumulation coefficient is applied to update the first stress accumulation value, adds the second stress value to a second stress accumulation value to which a second accumulation coefficient is applied to update the second stress accumulation value, and generates the compensation value based on the first stress accumulation value and the second stress accumulation value. The first accumulation coefficient and the second accumulation coefficient are different from each other.