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：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：US20220028314A1

公开(公告)日：2022-01-27

申请号：US17202769

申请日：2021-03-16

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  G09G3/3291 ,  G09G3/3233

Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.

公开(公告)号：US20250166561A1

公开(公告)日：2025-05-22

申请号：US19031776

申请日：2025-01-18

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3208

Abstract: A display device includes: a display panel including pixels, a data driving circuit, a scan driving circuit which drives a plurality of first scan lines and a plurality of second scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit to drive a first display area of the display panel at a first operating frequency and drive a second display area of the display panel at a second operating frequency lower than the first operating frequency while an operating mode is a multi-frequency mode. During the multi-frequency mode, first scan signals provided to first scan lines, which correspond to the second display area, of the plurality of first scan lines are maintained at inactive levels in predetermined frames, and second scan signals provided to the plurality of second scan lines transition to active levels at least twice in each of the predetermined frames.

公开(公告)号：US20240404451A1

公开(公告)日：2024-12-05

申请号：US18585325

申请日：2024-02-23

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/32

Abstract: A driving controller includes a compensation unit that receives an image signal corresponding to a first display area and a second display area, calculates stress data based on the image signal and previous stress data, and outputs an image data signal, which is obtained by compensating for the image signal based on the stress data, a memory that stores the stress data of a previous frame from the compensation unit and provides the previous stress data, and a multi-frequency compensation unit that receives a data enable signal, counts a number of consecutive masking enable frames when the data enable signal indicates a multi-frequency mode, calculates accumulated second stress data based on the number of the consecutive masking enable frames and second stress data, which corresponds to the second display area, from among the stress data from the memory, and stores the accumulated second stress data in the memory.

公开(公告)号：US20240397804A1

公开(公告)日：2024-11-28

申请号：US18422984

申请日：2024-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO PARK ,  TAEHOON KIM ,  DANBI YANG ,  GAK SEOK LEE ,  KANGSEOB JEONG

IPC: H10K59/80 ,  H10K59/38

Abstract: A color conversion substrate includes a substrate including a first transparent area and a second transparent area, a color filter layer disposed on the substrate, a light-blocking layer disposed on the color filter layer and defining the first transparent area and the second transparent area, a first organic structure in the first transparent area and including a scattering particle, a first color conversion part in the first transparent area covering the first organic structure, the first color conversion part including a first color conversion particle, and a transparent part in the second transparent area and including the scattering particle.

公开(公告)号：US20240397789A1

公开(公告)日：2024-11-28

申请号：US18609815

申请日：2024-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： KEUNWOO PARK ,  TAEHOON KIM ,  JAE CHEOL PARK ,  DANBI YANG ,  KANGSEOB JEONG

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/38 ,  H10K102/00

Abstract: A display device includes a first display substrate including a first base layer including a display area and a non-display area adjacent to the display area, a second display substrate spaced apart from the first display substrate and including a second base layer including pixel areas respectively overlapping the display area and a peripheral area adjacent to the pixel areas and color filters on the second base layer, and a sealing member between the first display substrate and the second display substrate and overlapping the non-display area.

公开(公告)号：US20240371312A1

公开(公告)日：2024-11-07

申请号：US18418890

申请日：2024-01-22

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/32

Abstract: A display panel driving circuit includes a scan driving circuit including a scan stage and a timing controller. The scan stage includes a first circuit connected to a first input node of receiving a first clock signal, a second circuit connected to a second input node of receiving a second clock signal, a third circuit connected to a third input node of receiving a carry signal, the first circuit, and the second circuit and connected to a first control node and a second control node, a pull-up transistor electrically connected to the first input node and an output node of outputting a scan signal and turned on/off by the first control node, and a pull-down transistor electrically connected to the output node and a low-level voltage line and turned on/off by the second control node.