公开(公告)号：US20230087545A1

公开(公告)日：2023-03-23

申请号：US17991197

申请日：2022-11-21

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SOON-DONG KIM ,  SANGAN KWON ,  SEUNGJAE LEE ,  JUNHEYUNG JUNG

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel including pixels connected to data lines and scan lines, a data driving circuit which drives the data lines, a scan driving circuit which drives the scan lines, and a driving controller divides the display panel into first and second display regions, controls the data driving circuit and the scan driving circuit to drive the first display region at a first driving frequency and to drive the second display region at a second driving frequency lower than the first driving frequency, and sets third driving frequencies respectively corresponding to horizontal lines in a boundary region, which is defined by a portion of the second display region adjacent to the first display region, during a multi-frequency mode. Each of the third driving frequencies has a frequency level between the first driving frequency and the second driving frequency.

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：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.

公开(公告)号：US20230215337A1

公开(公告)日：2023-07-06

申请号：US17956111

申请日：2022-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  TAEHOON KIM ,  JIN-WOOK YANG ,  CHANGNOH YOON

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G09G3/32 ,  G09G2310/08 ,  G09G2300/0819 ,  G09G2330/028 ,  G09G2310/0267 ,  G09G2310/0275

Abstract: A display device includes a display panel including a first pixel connected to a first initialization scan line and a first compensation scan line and a second pixel connected to a second initialization scan line and a second compensation scan line, a scan driving circuit which provides a first initialization scan signal to the first initialization scan line and the second initialization scan line in common and provides a first compensation scan signal and a second compensation scan signal to the first compensation scan line and the second compensation scan line, and a driving controller which controls the scan driving circuit. A delay time from a time point at which the first initialization scan signal transitions from an active level to an inactive level to a time point at which the first compensation scan signal transitions from the inactive level to the active level is less than one horizontal period.

公开(公告)号：US20230077512A1

公开(公告)日：2023-03-16

申请号：US17981762

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  CHANGNOH YOON ,  SEUNGJAE LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: The display device includes a display panel in which a first display area and a second display area adjacent to the first display area are defined, a data driving circuit which drives the plurality of data lines, a scan driving circuit which drives the plurality of scan lines, and a driving controller which receives an image signal and a control signal, and controls the data driving circuit and the scan driving circuit based on an operation mode, where the driving controller includes a luminance deviation compensation unit which compensates for luminance deviation of the first display area and the second display area when the operation mode is a multi-frequency mode in which the first display area is driven at a first frequency and the second display area is driven at a second frequency different from the first frequency.

公开(公告)号：US20230073348A1

公开(公告)日：2023-03-09

申请号：US17864762

申请日：2022-07-14

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driver, a scan driver, and a driving controller. The display panel includes a first display area and a second display area, which operate at different frequencies from each other in a multi-frequency mode. The driving controller controls the data driver and the scan driver. The driving controller generates boundary compensation data by compensating for boundary image signals, which are input to correspond to a boundary area of the first display area in the multi-frequency mode and drives the data driver based on a compensation image signal including the boundary compensation data.

公开(公告)号：US20230067214A1

公开(公告)日：2023-03-02

申请号：US17981599

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： SANGAN KWON ,  HUI NAM ,  SOON-DONG KIM ,  CHANGNOH YOON ,  SEUNGJAE LEE

IPC: G09G3/3233 ,  G09G5/14

Abstract: A display device includes a plurality of pixels arranged in m rows and n columns, where the pixels receive write scan signals, data voltages and compensation scan signals, a plurality of write scan lines which provides the write scan signals to the pixels, a plurality of data lines which provides the data voltages to the pixels, and a plurality of compensation scan lines which provides the compensation scan signals to the pixels, wherein in h-th to p-th frames, the data voltages are applied to pixels arranged in first to i-th rows, and in h-th to (h+k)-th frames, the data voltages are applied to pixels of a row unit by increasing sequentially the number of the row unit to which the data voltages are applied in at least one row unit from an i-th row to an (i+1)-th row.