公开(公告)号：US20190340990A1

公开(公告)日：2019-11-07

申请号：US16511184

申请日：2019-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAHUN KOO ,  Haksun Kim ,  Kyung-Hun Lee

IPC: G09G3/36 ,  G09G5/18

Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.

公开(公告)号：US20210142758A1

公开(公告)日：2021-05-13

申请号：US17151313

申请日：2021-01-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAHUN KOO ,  Kyung-Hun LEE ,  Ho LEE

IPC: G09G3/36 ,  G09G5/12 ,  G02F1/133

Abstract: A liquid crystal display device includes a source device that outputs image data and a sink device that performs a displaying operation based on the image data. The source device changes a frame rate of an image frame composing the image data while the displaying operation is performed. The sink device changes a frame rate of a panel driving frame for the displaying operation by adjusting a vertical blank period of the panel driving frame as the frame rate of the image frame is changed. Here, the sink device adjusts a common voltage applied to a display panel included in the sink device during a display operation of an individual frame, in accordance with the frame rate of the panel driving frame.

公开(公告)号：US20170287425A1

公开(公告)日：2017-10-05

申请号：US15443566

申请日：2017-02-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAHUN KOO ,  HAKSUN KIM ,  KYUNG-HUN LEE

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3674 ,  G09G3/3688 ,  G09G3/3696 ,  G09G5/18 ,  G09G2300/0417 ,  G09G2300/0809 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/025

Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.

公开(公告)号：US20240153453A1

公开(公告)日：2024-05-09

申请号：US18238463

申请日：2023-08-26

Applicant: Samsung Display Co., LTD.

Inventor： KANG-MIN KIM ,  DONGIN KIM ,  BYOUNGCHEL KIM ,  JAHUN KOO ,  YEONG WON KIM ,  BONGIM PARK ,  GYUSU LEE ,  HYE RYEON JO

IPC: G09G3/3233 ,  G09G3/32 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/32 ,  G09G3/3275 ,  G09G2300/0452 ,  G09G2310/0275 ,  G09G2320/0233

Abstract: A display device includes a display panel which includes a pixel including a driving transistor and a light-emitting element, and a sensing line connected to the pixel. A sensing driver senses a first sensing signal corresponding to mobility of the driving transistor through the sensing line, and processes the first sensing signal to output first sensing data. A driving controller receives the first sensing data from the sensing driver, generates mobility compensation data and kickback compensation data based on the first sensing data, and converts image data into compensation image data by the mobility compensation data and the kickback compensation data. A data driver converts the compensation image data into a data signal and provides the data signal to the pixel.

公开(公告)号：US20200312262A1

公开(公告)日：2020-10-01

申请号：US16903746

申请日：2020-06-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAHUN KOO ,  HAKSUN KIM ,  KYUNG-HUN LEE

IPC: G09G3/36 ,  G09G5/18

Abstract: A display apparatus includes a display panel comprising a pixel which is connected to a gate line and a data line, a gate driver configured to generate a gate signal having a gate-on voltage and a gate-off voltage and to provide the gate line with the gate signal, and a gate controller configured to generate a clock signal having a duty ratio and to provide the gate driver with the clock signal, where a mean amplitude of the clock signal in a vertical blanking period of a frame cycle is smaller than the mean amplitude of the clock signal in an active period of the frame cycle.

公开(公告)号：US20170309241A1

公开(公告)日：2017-10-26

申请号：US15448937

申请日：2017-03-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEUNG-WOON SHIN ,  JAHUN KOO ,  YOUNG-IL KIM ,  SUNG-JAE PARK ,  SEHWAN AN

IPC: G09G3/36

Abstract: A display apparatus includes a display panel, a data driving circuit, and a gate driving circuit. The display panel is configured to display an image and includes a gate line and a data line. The data driving circuit is configured to output a data signal to the data line. The gate driving circuit is configured to output a gate signal to the gate line and to control a kick-back time of the gate signal according to a temperature of the display panel. The kick-back time is a time when the gate signal is decreased from a gate on voltage to a kick-back voltage that is between the gate on voltage and a gate off voltage.

公开(公告)号：US20240135851A1

公开(公告)日：2024-04-25

申请号：US18205183

申请日：2023-06-02

Applicant: Samsung Display Co., LTD.

Inventor： DONGIN KIM ,  KANG-MIN KIM ,  BYOUNGCHEL KIM ,  JAHUN KOO ,  BONGIM PARK

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0666 ,  G09G2360/16

Abstract: A luminance compensation method for a display device includes measuring a luminance of each of white grayscale values, measuring an actual luminance value for each of colors, determining a target luminance value for each of the colors based on the luminance of each of the white grayscale values and a luminance contribution ratio of each of the colors, determining a luminance compensation amount for each of the colors based on the target luminance value and the actual luminance value, and compensating for input image data for each of the colors based on the luminance compensation amount.

公开(公告)号：US20220068166A1

公开(公告)日：2022-03-03

申请号：US17239910

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGWEON SEO ,  JAHUN KOO ,  JIHYUN KIM ,  JINSOO SHIN ,  KISEOK CHA ,  JOONHOO CHOI

IPC: G09F9/30 ,  H05K1/18 ,  H05K1/02

Abstract: A display device includes a display substrate comprising a polymer layer including a first non-bending area, a second non-bending area that overlaps the first non-bending area when viewed in a plan view, and a bending area arranged between the first non-bending area and the second non-bending area. A display element layer is disposed on the polymer layer. A plurality of signal pad groups is disposed in the second non-bending area and is configured to be electrically connected to the display element layer. An upper substrate is disposed on a top surface of the display substrate. A flexible circuit board comprising a plurality of connection pad groups is arranged in correspondence to the signal pad groups. An area of the upper substrate is larger than an area of the display substrate when viewed in a plan view.

公开(公告)号：US20210134235A1

公开(公告)日：2021-05-06

申请号：US17145572

申请日：2021-01-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAHUN KOO ,  JINHO PARK ,  JONG DEUK MOON ,  SU-HAN WOO ,  KYUNG-HUN LEE ,  KYUNG-UK CHOI

IPC: G09G3/34 ,  G09G3/36

Abstract: A liquid crystal display device includes a liquid crystal display panel, a light source configured to provide the liquid crystal display panel with a light, a vertical blank detector circuit configured to calculate a counting value of a vertical blank period of a frame by counting a synchronization signal, a luminance correction value calculator circuit configured to calculate a luminance correction value by comparing the counting value of the vertical blank period with a plurality of reference counting values, and a light source driver configured to generate a light source driving signal and provide the light source driving signal to the light source. The light source driving signal has a normal level corresponding to a normal luminance value in an active period of the frame and has a correction level corresponding to the luminance correction value in the vertical blank period of the frame.