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：US20240355291A1

公开(公告)日：2024-10-24

申请号：US18761231

申请日：2024-07-01

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  JINYOUNG ROH ,  YOUNGHA SOHN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/0272 ,  G09G2330/021 ,  G09G2340/06

Abstract: A display panel includes a plurality of first pixel parts disposed in a first row, a plurality of second pixel parts disposed in a second row and including a first pixel part that includes a first pixel circuit and a first light emitting element which are electrically separated from each other, and a second pixel part that includes a second pixel circuit and a second light emitting element which are electrically separated from each other. The first light emitting element of the first pixel part is electrically connected to the second pixel circuit of the second pixel part.

公开(公告)号：US20240331623A1

公开(公告)日：2024-10-03

申请号：US18740025

申请日：2024-06-11

Applicant: Samsung Display Co., LTD.

Inventor： JAEKEUN LIM ,  BON-SEOG GU ,  SANGAN KWON ,  SOON-DONG KIM ,  JINYOUNG ROH ,  HAE-KWAN SEO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display device includes a display panel including a pixel including a pixel circuit and a light emitting element, a plurality of scan lines connected to the pixel circuit, an emission control line connected to the pixel circuit, and a data line connected to the pixel circuit. The pixel circuit includes a first capacitor connected to a first node and a second node opposite to the first node, a first circuit portion that includes a first transistor connected between the data line and the first node and a second transistor connected between the first transistor and the first node, and a second circuit portion connected to the second node and the light emitting element. Before the light emitting element emits light, a reference voltage is provided to a third node between the first transistor and the second transistor.

公开(公告)号：US20240185797A1

公开(公告)日：2024-06-06

申请号：US18407362

申请日：2024-01-08

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2330/023 ,  G09G2330/028

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US20240179980A1

公开(公告)日：2024-05-30

申请号：US18468376

申请日：2023-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： BON-SEOG GU ,  HAE-KWAN SEO ,  JINYOUNG ROH ,  JAEKEUN LIM

IPC: H10K59/131 ,  H10K59/121 ,  H10K59/35 ,  H10K59/80 ,  H10K59/88

CPC classification number: H10K59/131 ,  H10K59/121 ,  H10K59/353 ,  H10K59/8051 ,  H10K59/88

Abstract: A display panel includes pixel circuits at a first row and a second row, and light-emitting elements at the first row and the second row, wherein the light-emitting elements at the first row include an anode and a dummy connection electrode extending from the anode, and are respectively electrically connected with, and overlap, the pixel circuits at the first row, and wherein a first light-emitting element among the light-emitting elements at the second row is spaced from a first pixel circuit among the pixel circuits at the second row, and is electrically connected with the first pixel circuit through a connection electrode and a first connection node.

公开(公告)号：US20240062704A1

公开(公告)日：2024-02-22

申请号：US18136430

申请日：2023-04-19

Applicant: Samsung Display Co., LTD.

Inventor： JAEKEUN LIM ,  JIN-WOOK YANG ,  BON-SEOG GU ,  JINYOUNG ROH ,  HAE-KWAN SEO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0297 ,  G09G2300/0452 ,  G09G2310/0272 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display panel of a display device includes: first light emitting elements located in a first row, second light emitting elements located in a second row adjacent to the first row, first pixel circuits located in the first row, and second pixel circuits located in the second row. Each of the first pixel circuits drives a first light emitting element, located in a column the same as a column in which the each of the first pixel circuits is located, among the first light emitting elements. At least one second pixel circuit of the second pixel circuits drives a second light emitting element, located in a column different from a column in which the at least one second pixel circuit is located, among the second light emitting elements.

公开(公告)号：US20230326405A1

公开(公告)日：2023-10-12

申请号：US18105896

申请日：2023-02-06

Applicant: Samsung Display Co., Ltd.

Inventor： HAE-KWAN SEO ,  JINYOUNG ROH ,  YOUNGHA SOHN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/0202 ,  G09G2310/0272 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2340/06 ,  G09G2330/021 ,  G09G2300/0452

Abstract: A display panel includes a plurality of first pixel parts disposed in a first row, a plurality of second pixel parts disposed in a second row and including a first pixel part that includes a first pixel circuit and a first light emitting element which are electrically separated from each other, and a second pixel part that includes a second pixel circuit and a second light emitting element which are electrically separated from each other. The first light emitting element of the first pixel part is electrically connected to the second pixel circuit of the second pixel part.

公开(公告)号：US20240346991A1

公开(公告)日：2024-10-17

申请号：US18752712

申请日：2024-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： JINYOUNG ROH ,  HAE-KWAN SEO ,  BON-SEOG GU ,  JAEKEUN LIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display panel of a display device includes first and second pixel circuits disposed in a first row and connected to 0-th and second data lines, respectively, third and fourth pixel circuits disposed in a second row and connected to first and third data lines, respectively, a first light-emitting area connected to the first pixel circuit via a first connection wiring, a second light-emitting area at least partially overlapping the second pixel circuit and connected to the second pixel circuit, a third light-emitting area at least partially overlapping the third pixel circuit and connected to the third pixel circuit, and a fourth light-emitting area connected to the fourth pixel circuit via a second connection wiring.

公开(公告)号：US20230402013A1

公开(公告)日：2023-12-14

申请号：US18132725

申请日：2023-04-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JAEKEUN LIM ,  BON-SEOG GU ,  TAEHOON KIM ,  JINYOUNG ROH ,  HAE-KWAN SEO

IPC: G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2330/021 ,  G09G2310/0202 ,  G09G2310/0286 ,  G09G2300/0861 ,  G09G2320/02 ,  G09G2310/08

Abstract: A scan driver includes a control unit, a first output unit, a second output unit, and a masking control unit. The control unit outputs a first control signal to a first control node and outputs a second control signal to a second control node. The first output unit is connected to the first control node, a first output terminal, and a first voltage terminal, and operates in response to the first control signal. The second output unit is connected to the second control node, the first output terminal, and a second voltage terminal, and operates in response to the second control signal. The masking control unit is connected between an input terminal, to which a clock signal is input, and the first control node and controls a voltage level of the first control signal in response to a masking enable 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.