公开(公告)号：US20240153455A1

公开(公告)日：2024-05-09

申请号：US18403199

申请日：2024-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  TAEHOON KIM ,  HUI NAM ,  JUNHEYUNG JUNG

IPC: G09G3/3233 ,  G09G5/14

CPC classification number: G09G3/3233 ,  G09G5/14 ,  G09G3/3266

Abstract: A display apparatus includes a display panel including a pixel to display an image based on input image data, a driving controller which determines a driving frequency of a first display area of the display panel to be a first driving frequency and determines a driving frequency of a second display area of the display panel to be a second driving frequency less than the first driving frequency when the first display area displays a moving image and the second display area of the display panel displays a still image, and an emission driver which outputs a moving image emission signal corresponding to the first driving frequency and a still image emission signal corresponding to the second driving frequency to the display panel. A width of a non-emission period of the still image emission signal is greater than a width of a non-emission period of the moving image emission signal.

公开(公告)号：US20230368712A1

公开(公告)日：2023-11-16

申请号：US18224883

申请日：2023-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  TAEHOON KIM

IPC: G09G3/00 ,  G09G3/3266

CPC classification number: G09G3/035 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller receives an image signal and a control signal and controls the data and scan driving circuits to display an image on the display panel. The driving controller divides the display panel into first and second display regions based on the image signal, and outputs start and masking signals indicating starts of one frame and the second display region, respectively. First and second frames have first and second durations, respectively. The scan driving circuit sequentially drives scan lines in synchronization with the start signal and stop the driving of scan lines, corresponding to the second display region, of the scan lines, in response to the masking signal.

公开(公告)号：US20230178003A1

公开(公告)日：2023-06-08

申请号：US17890761

申请日：2022-08-18

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  TAEHOON KIM ,  JIN-WOOK YANG

IPC: G09G3/32

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

Abstract: A display device includes: a display panel including a plurality of pixels connected to a plurality of scan lines; a scan driving circuit, which drives the plurality of scan lines in synchronization with a clock signal; and a driving controller, which outputs the clock signal. While an operating mode is a multi-frequency mode, the driving controller comparts the display panel into a first display area and a second display area. A hold frame of the multi-frequency mode includes a first section during which the first display area is driven, and a second section during which the second display area is driven. The driving controller outputs the clock signal of a normal power mode during the first section and outputs the clock signal of a low-power mode during the second section.

公开(公告)号：US20210407399A1

公开(公告)日：2021-12-30

申请号：US17246430

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： TAEHOON KIM ,  SOON-DONG KIM ,  JAEKEUN LIM ,  JOON-CHUL GOH ,  BONGHYUN YOU

IPC: G09G3/3225 ,  H01L27/32

Abstract: A display device includes: a first partial emission driver configured to provide first emission control signals to a first partial panel area of the display panel, and a second partial emission driver configured to provide second emission control signals to a second partial panel area of the display panel; and a power management block configured to: provide a first voltage and a second voltage to the emission driver, in response to the first partial emission driver generating the first emission control signals; and provide a third voltage and a fourth voltage to the emission driver in response to the second partial emission driver generating the second emission control signals; and an emission control block configured to receive the first voltage and the second voltage from the power management block and to provide a first clock signal and a second clock signal to the emission driver.

公开(公告)号：US20210407352A1

公开(公告)日：2021-12-30

申请号：US17206613

申请日：2021-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  TAEHOON KIM

IPC: G09G3/00 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller receives an image signal and a control signal and controls the data and scan driving circuits to display an image on the display panel. The driving controller divides the display panel into first and second display regions based on the image signal, and outputs start and masking signals indicating starts of one frame and the second display region, respectively. First and second frames have first and second durations, respectively. The scan driving circuit sequentially drives scan lines in synchronization with the start signal and stop the driving of scan lines, corresponding to the second display region, of the scan lines, in response to the masking signal.

公开(公告)号：US20240346971A1

公开(公告)日：2024-10-17

申请号：US18754922

申请日：2024-06-26

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  TAEHOON KIM

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/035 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/08

Abstract: A display device includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller receives an image signal and a control signal and controls the data and scan driving circuits to display an image on the display panel. The driving controller divides the display panel into first and second display regions based on the image signal, and outputs start and masking signals indicating starts of one frame and the second display region, respectively. First and second frames have first and second durations, respectively. The scan driving circuit sequentially drives scan lines in synchronization with the start signal and stop the driving of scan lines, corresponding to the second display region, of the scan lines, in response to the masking signal.

公开(公告)号：US20240290235A1

公开(公告)日：2024-08-29

申请号：US18536707

申请日：2023-12-12

Applicant: Samsung Display Co., LTD.

Inventor： SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  GEUNJEONG PARK ,  CHANGNOH YOON

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/035 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes a display panel including pixels, and a panel driver which drive the display panel. Each frame period for the display panel includes N emission cycles, where N is an integer greater than 1. In a partial driving mode, the panel driver sets a black region of the display panel from a M/N point of the display panel along a direction perpendicular to an emission signal line, where M is an integer greater than 0 and less than N, and drives the display panel to display an image corresponding to input image data in a remaining region of the display panel other than the black region and to display a black image in the black region.

公开(公告)号：US20230395017A1

公开(公告)日：2023-12-07

申请号：US18234477

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： TAEHOON KIM ,  SANGAN KWON ,  SOON-DONG KIM ,  HUI NAM ,  EUN SIL YUN ,  CHANGNOH YOON

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2300/0819 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2300/0842

Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.

公开(公告)号：US20230260449A1

公开(公告)日：2023-08-17

申请号：US17973983

申请日：2022-10-26

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A display device includes a driving controller which outputs the output image signal corresponding to the input image signal when the first display area is driven, outputs the output image signal corresponding to a first bias signal when the boundary area is driven, and outputs the output image signal corresponding to a second bias signal different from the first bias signal when the non-boundary area is driven.

公开(公告)号：US20230245619A1

公开(公告)日：2023-08-03

申请号：US18084559

申请日：2022-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2330/028 ,  G09G2300/0819 ,  G09G2320/0686 ,  G09G2300/0842 ,  G09G2360/16 ,  G09G2310/0262 ,  G09G2310/0245 ,  G09G2310/08 ,  G09G2310/027

Abstract: A display device includes a display panel, a power supply unit, a voltage adjustment signal provider, and a data adjustment signal provider. The display panel includes a first display area and a second display area. The power supply unit is configured to provide a first initialization voltage and a second initialization voltage to the display panel. The voltage adjustment signal provider is configured to provide an adjustment signal to the power supply unit for applying an adjustment voltage to the second initialization voltage when the second display area is driven at a frequency lower than at least one of a predetermined frequency and a driving frequency of the first area. The data adjustment signal provider is configured to provide a data adjustment signal for adjusting gray levels of some pixels included in the first display area when the adjustment voltage is applied to the second initialization voltage.