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：US20190304372A1

公开(公告)日：2019-10-03

申请号：US16205512

申请日：2018-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak PYO ,  Choon Yul Oh

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

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：US12087203B2

公开(公告)日：2024-09-10

申请号：US18491499

申请日：2023-10-20

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：US11302238B2

公开(公告)日：2022-04-12

申请号：US16532411

申请日：2019-08-05

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

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：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：US10810942B2

公开(公告)日：2020-10-20

申请号：US16205512

申请日：2018-11-30

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.