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：US20220238076A1

公开(公告)日：2022-07-28

申请号：US17539555

申请日：2021-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  HYOJIN LEE ,  JAEKEUN LIM

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a display panel that includes a first display area and a second display area, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the first display area is driven at a first driving frequency, and the second display area is driven at a second driving frequency lower than the first driving frequency during a multi-frequency mode, where the driving controller receives an image signal and provides to the data driving circuit an image data signal obtained by compensating for a gamma level of the image signal corresponding to the second display area during the multi-frequency mode.

公开(公告)号：US20220036833A1

公开(公告)日：2022-02-03

申请号：US17315449

申请日：2021-05-10

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3291 ,  G09G3/20

Abstract: A display apparatus includes a display panel including pixels, a gate driver applying a gate signal to a gate line, a data driver applying a data voltage to a data line and a driving controller determining a mode of an input image data to a moving image mode or a static image mode according to whether the input image data is a moving image or a static image, driving the display panel in a moving image driving frequency in the moving image mode and in a static image driving frequency in the static image mode, operating the gate driver in an alternate driving mode such that the gate driver scans a first group of the gate lines in a first duration and a second group of the gate lines in a second duration and inserting a compensation frame to scan all of the gate lines when an image transition is occurred in the static image mode.

公开(公告)号：US20220028344A1

公开(公告)日：2022-01-27

申请号：US17217293

申请日：2021-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： JIWOONG KIM ,  JAEKEUN LIM

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixels, a plurality of data lines extending in a first direction and coupled to the plurality of pixels, a plurality of first scan lines extending in a second direction different from the first direction and coupled to the plurality of pixels, and a plurality of second scan lines extending in the first direction and coupled to the plurality of first scan lines, a data driver which provides data voltages to the plurality of pixels through the plurality of data lines, and a scan driver which sequentially provides a scan signal to the plurality of pixels on a row-by-row basis through the plurality of second scan lines and the plurality of first scan lines. The data driver and the scan driver are implemented with a data-scan integration chip which outputs the data voltages and the scan signal.

公开(公告)号：US20210304680A1

公开(公告)日：2021-09-30

申请号：US17143191

申请日：2021-01-07

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3266 ,  G09G3/3275

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：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.

公开(公告)号：US20240331626A1

公开(公告)日：2024-10-03

申请号：US18535968

申请日：2023-12-11

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0257 ,  G09G2320/0666 ,  G09G2330/021

Abstract: A display panel is disclosed that includes 2-1 to 2-4 pixel circuit sequentially disposed in a first direction in a second pixel row and 2-1 to 2-4 light emitting area sequentially disposed in the first direction. The 2-1 pixel circuit is connected to a first data line, the 2-2 pixel circuit is connected to a second data line, the 2-3 pixel circuit is connected to a third data line and the 2-4 pixel circuit is connected to a fourth data line. The 2-1 pixel circuit is connected to the 2-3 light emitting area, the 2-2 pixel circuit is connected to the 2-1 light emitting area, the 2-3 pixel circuit is connected to the 2-2 light emitting area and the 2-4 pixel circuit is connected to the 2-4 light emitting area. A color of the 2-1 light emitting area is different from a color of the 2-3 light emitting area.

公开(公告)号：US20240212549A1

公开(公告)日：2024-06-27

申请号：US18542770

申请日：2023-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： JAEKEUN LIM

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/0286

Abstract: A shift register includes a plurality of stages. At least one of the stages is configured to receive an input signal, a first clock signal, a second clock signal, a first power voltage and a second power voltage and to output an output signal. The at least one of the stages includes a pull up switching element connected between a first power voltage terminal configured to receive the first power voltage and an output terminal configured to output the output signal, a pull down switching element connected between a second power voltage terminal configured to receive the second power voltage and the output terminal, a first pull down control switching element connected to a control electrode of the pull down switching element and a second pull down control switching element connected to the first power voltage terminal and the control electrode of the pull down switching element.

公开(公告)号：US20230419882A1

公开(公告)日：2023-12-28

申请号：US18142237

申请日：2023-05-02

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 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2310/0202

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.