公开(公告)号：US20240185752A1

公开(公告)日：2024-06-06

申请号：US18442589

申请日：2024-02-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEHYUK PARK ,  JINYOUNG ROH ,  WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  JIN-WOOK YANG

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.

公开(公告)号：US20240062694A1

公开(公告)日：2024-02-22

申请号：US18191542

申请日：2023-03-28

Applicant: SAMSUNG DISPLAY CO. LTD.

Inventor： DONGGYU LEE ,  SEHYUK PARK ,  JIN-WOOK YANG ,  JAE-HYEON JEON

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0264 ,  G09G2340/0435

Abstract: A display system includes a host processor configured to provide frame data using a scan order, and a display device including a display panel including pixels and a display panel driver configured to refresh the pixels according using the frame data and to provide the scan order to the host processor.

公开(公告)号：US20240005847A1

公开(公告)日：2024-01-04

申请号：US18127341

申请日：2023-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： JIN-WOOK YANG ,  YU-CHOL KIM ,  SEHYUK PARK ,  DONGGYU LEE ,  JAE-HYEON JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2310/0275 ,  G09G2310/0267

Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.

公开(公告)号：US20230065185A1

公开(公告)日：2023-03-02

申请号：US17863519

申请日：2022-07-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOJIN LEE ,  WOOMI BAE ,  HUI NAM ,  JINYOUNG ROH ,  SEHYUK PARK ,  JAEKEUN LIM

IPC: G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixel rows, and a panel driver which drives the display panel. The panel driver determines whether input image data represents a still image. When the input image data represents the still image, the panel driver determines a flicker value of the still image, applies a compensation value corresponding to a carry shift interval to the flicker value, determines a driving frequency for the display panel based on the flicker value to which the compensation value is applied, and performs an alternate driving operation for the display panel at the driving frequency.

公开(公告)号：US20220059039A1

公开(公告)日：2022-02-24

申请号：US17389466

申请日：2021-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： JINYOUNG ROH ,  HONGSOO KIM ,  SEHYUK PARK ,  HYOJIN LEE ,  JAEKEUN LIM

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A gate driver includes a first stage, a second stage, a third stage and a fourth stage. The first stage includes a first clock terminal receiving a first clock signal, a second clock terminal receiving a second clock signal, a carry terminal receiving a vertical start signal and an output terminal outputting a first gate output signal. The second stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the vertical start signal and an output terminal outputting a second gate output signal. The third stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the first gate output signal and an output terminal outputting a third gate output signal.

公开(公告)号：US20210056885A1

公开(公告)日：2021-02-25

申请号：US16989073

申请日：2020-08-10

Applicant: SAMSUNG DISPLAY CO, LTD

Inventor： SEHYUK PARK ,  HONG SOO KIM ,  SANGAN KWON ,  JINYOUNG ROH ,  HYO JIN LEE

IPC: G09G3/20 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a data driver and a driving controller. The display panel is configured to display an image based on input image data. The data driver is configured to output a data voltage to the display panel. The driving controller includes a frequency adjuster circuit configured to determine a driving frequency of the display panel, and a dithering circuit configured to change a grayscale value of the input image data according to frames. The frequency adjuster circuit is configured to determine the driving frequency of the display panel based on the input image data and based on whether the dithering part is activated.

公开(公告)号：US20240221628A1

公开(公告)日：2024-07-04

申请号：US18602714

申请日：2024-03-12

Applicant: Samsung Display Co., LTD.

Inventor： JIN-WOOK YANG ,  SEHYUK PARK ,  DONGGYU LEE ,  JAE-HYEON JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US20240038143A1

公开(公告)日：2024-02-01

申请号：US18132242

申请日：2023-04-07

Applicant: Samsung Display Co., LTD.

Inventor： JIN-WOOK YANG ,  SEHYUK PARK ,  DONGGYU LEE ,  JAE-HYEON JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US20230410723A1

公开(公告)日：2023-12-21

申请号：US18120627

申请日：2023-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  DONGGYU LEE ,  JAE-HYEON JEON ,  JIN-WOOK YANG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2320/0626 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2320/0233

Abstract: A display device includes a display panel including a pixel which receives a luminance control voltage, a driving controller which receives an input image signal and a control signal and provides an output image signal to the display panel, and a voltage generator which generates the luminance control voltage in response to a voltage control signal from the driving controller. The driving controller determines a current operating frequency based on the control signal, and outputs the voltage control signal based on a difference value between the current operating frequency and a previous operating frequency and an operating time of the previous operating frequency when the current operating frequency is different from the previous operating frequency, where the luminance control voltage is changed from a first voltage level to a second voltage level based on the voltage control signal.

公开(公告)号：US20230127526A1

公开(公告)日：2023-04-27

申请号：US17939018

申请日：2022-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  JINYOUNG ROH ,  WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN

IPC: G09G3/20

Abstract: A display apparatus includes a display panel and a display driver. The display panel has a first pixel structure. The display driver is configured to receive input image data including first data, and generate a driving signal for driving the display panel based on conversion data. The display driver includes a converter configured to convert the first data into the conversion data. The conversion data include conversion data in N rows and M columns. Each of (2K−1)-th column conversion data include first color conversion data representing a first color and second color conversion data representing a second color. Each of 2K-th column conversion data include third color conversion data representing a third color and fourth color conversion data representing the second color. N, M and K are positive integers.