公开(公告)号：US11798454B2

公开(公告)日：2023-10-24

申请号：US17717977

申请日：2022-04-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak Pyo ,  Seung Kyu Lee ,  Choon Yul Oh ,  Jun Ho Hwang

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/32

CPC classification number: G09G3/2007 ,  G09G3/2003 ,  G09G3/3233 ,  G09G3/32 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2320/0686

Abstract: A display device includes: a target pixel; observation target pixels located adjacent to the target pixel; and a grayscale corrector for converting an input grayscale value corresponding to the target pixel with reference to observation target grayscale values corresponding to the observation target pixels. The grayscale corrector includes: a light emitting pixel counter for providing a number of light emitting pixels by counting a number of observation target pixels that exceeds a reference value; and a grayscale converter for providing a converted grayscale value by converting the input grayscale value, based on the number of light emitting pixels.

公开(公告)号：US10522075B2

公开(公告)日：2019-12-31

申请号：US15159671

申请日：2016-05-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak Pyo ,  Won Ju Shin ,  Ye Ji Lee ,  Jong Dae Lee

IPC: G09G3/3225 ,  G09G3/3233

Abstract: There is provided an organic light emitting display device including a display panel including pixels and a display panel driver configured to drive the display panel. The display panel driver is arranged to receive a maximum brightness signal. When a maximum brightness determined corresponding to the maximum brightness signal is lower than a first reference maximum brightness for a frame, the display panel driver is programmed to direct less than all of the pixels to emit light components during a frame period of the frame. When the maximum brightness is higher than the first reference maximum brightness and is lower than a second reference maximum brightness, the display panel driver is programmed to direct all of the pixels to emit light components during only part of the frame period. The second reference maximum brightness is higher than the first reference maximum brightness.

公开(公告)号：US11756471B2

公开(公告)日：2023-09-12

申请号：US17699651

申请日：2022-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak Pyo ,  Seung Kyu Lee ,  Hyun Jung Son ,  Yoon Gyu Lee

IPC: G09G5/10 ,  G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/2074 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2320/0233 ,  G09G2320/0242

Abstract: A display device includes a processor and a display panel for receiving observation grayscale values from the processor. The display panel includes a data driver for applying data voltages to data lines, a target pixel coupled to at least one of the data lines, and observation pixels each coupled to at least one of the data lines, and located adjacent to the target pixel. The display panel applies a first data voltage to the target pixel, when the observation grayscale values for the observation pixels exceed a reference value. The display panel applies a second data voltage to the target pixel, when at least one of the observation grayscale values does not exceed the reference value. The first data voltage and the second data voltage are different from each other.

公开(公告)号：US11594187B2

公开(公告)日：2023-02-28

申请号：US17248903

申请日：2021-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak Pyo ,  Yeong Bong Kang

IPC: G09G3/3291 ,  G09G3/3225 ,  H01L27/32

Abstract: A display device includes: a pixel unit including a target pixel and peripheral pixels in a unit area set based on the target pixel; a converter configured to adjust a voltage level of a data voltage of the target pixel, based on light emission statuses of the peripheral pixels, and to determine a voltage level of a black voltage of at least one peripheral pixel which does not emit light among the peripheral pixels, based on the light emission statuses of the peripheral pixels; and a data driver configured to apply the data voltage to the target pixel, and to apply the black voltage to the at least one peripheral pixel which does not emit light.

公开(公告)号：US11322075B2

公开(公告)日：2022-05-03

申请号：US17008047

申请日：2020-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak Pyo ,  Hyun Jung Son

IPC: G09G3/22 ,  G09G5/10

Abstract: Provided is an optical compensation method for a display device including a pixel coupled between first power and second power sources. In the optical compensation method, the first voltage level of the second power source corresponding to a first luminance level is set while measuring the luminance of the display device, the second voltage level of the second power source corresponding to a second luminance level is set while measuring the luminance of the display device, the third voltage levels of the second power source for representative luminance levels including the first and second luminance levels are set based on the first and second voltage levels, and the fourth voltage levels of the second power source for the representative luminance levels according to temperature conditions are set based on the third voltage levels and temperature offsets according to the temperature conditions, under which the display device is driven.

公开(公告)号：US10546527B2

公开(公告)日：2020-01-28

申请号：US16164182

申请日：2018-10-18

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak Pyo ,  Seung Wook Nam ,  Jong Kwang Hwang

IPC: G09G3/3225

Abstract: A display device includes first pixels positioned in a first pixel area, second pixels positioned in a second pixel area that has a different width from a width of the first pixel area, and a data compensating unit configured to compensate for image data. The data compensating unit sets a first compensation area and a second compensation area that is different from the first compensation area, and compensates for the image data corresponding to the first compensation area on a first block unit basis, and compensates for the image data corresponding to the second compensation area on a second block unit basis that is different from the first block unit basis, and the first compensation area includes the second pixel area.

公开(公告)号：US11817045B2

公开(公告)日：2023-11-14

申请号：US18054203

申请日：2022-11-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak Pyo ,  Seung Kyu Lee ,  Min Seong Son

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2022 ,  G09G2310/0278 ,  G09G2320/0646

Abstract: A display device includes a display unit including a plurality of pixels coupled to a plurality of data lines, a plurality of scan lines, and a plurality of emission control lines, a controller for determining a width of a gate-off section of an emission control signal, which corresponds to a non-emission section of each of a plurality of frames belonging to a dimming period, in response to a dimming signal, and an emission driver for supplying the emission control signal in units of a plurality of consecutive pixel rows through the plurality of emission control lines.

公开(公告)号：US11263971B2

公开(公告)日：2022-03-01

申请号：US17074575

申请日：2020-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak Pyo ,  Choon Yul Oh

IPC: G09G3/3258 ,  H01L27/32 ,  G01K3/10 ,  G09G3/3266 ,  G09G3/3275

Abstract: An organic light emitting display device includes a display panel, a display panel driver, and a power supply. The display panel includes pixels. Each of the pixels includes an organic light emitting diode configured to emit light in an emission period based on a first power supply voltage and a second power supply voltage. The display panel driver is configured to apply a scan signal, an emission control signal, and a data signal to the pixels. The power supply is configured to: generate the first power supply voltage, the second power supply voltage, and a third power supply voltage applied to the pixels in a non-emission period; and adjust a voltage level of the second power supply voltage and a voltage level of the third power supply voltage based on an ambient temperature and a brightness of the display panel.

公开(公告)号：US11170689B2

公开(公告)日：2021-11-09

申请号：US16741104

申请日：2020-01-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak Pyo ,  Seung Kyu Lee

IPC: G09G3/20

Abstract: A source driver includes a gamma voltage generation circuit. The gamma voltage generation circuit generates a gamma voltage and varies a gamma voltage based on a drive frequency. A data voltage generation circuit generates a data voltage based on the gamma voltage.

公开(公告)号：US10904517B2

公开(公告)日：2021-01-26

申请号：US15785287

申请日：2017-10-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Koo Lee ,  Soo Young Kim ,  Min Tak Lee ,  Kyu Seok Kim ,  Young Nam Yun ,  Si Beak Pyo

IPC: H04N13/344 ,  G09G3/00 ,  H04N13/398 ,  H04N13/133 ,  G09G5/10

Abstract: A display panel including: a display unit configured to provide a first image to one of a left eyeball and a right eyeball of a user and to provide a second image having the same tone as a tone of the first image to the other one of the left eyeball and the right eyeball of the user; a brightness correcting unit configured to generate second image data corresponding to the second image by using first image data corresponding to the first image; and a data driver configured to generate a first data signal based on the first image data, to generate a second data signal based on the second image data, and to provide the first and second data signals to the display unit, and the first image and the second image are displayed with different brightnesses during at least a part of an image display period.