公开(公告)号：US12033568B2

公开(公告)日：2024-07-09

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 ,  G09G2300/0819 ,  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：US11915658B2

公开(公告)日：2024-02-27

申请号：US18179345

申请日：2023-03-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Taehoon Kim ,  Joon-Chul Goh ,  Soon-Dong Kim ,  Hae-Kwan Seo

IPC: G09G3/3266 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G2300/0819 ,  G09G2310/0213 ,  G09G2330/021

Abstract: A scan driving circuit includes: a driving circuit configured to output a scan signal to an output terminal in response to clock signals and a carry signal; and a masking circuit configured to stop the driving circuit from outputting the scan signal in response to a masking signal and a signal indicating an operating state of the driving circuit.

公开(公告)号：US11903267B2

公开(公告)日：2024-02-13

申请号：US15249831

申请日：2016-08-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo ,  Do-Youb Kim ,  Bon-Seog Gu

IPC: H10K59/128 ,  H10K50/80 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K59/128 ,  H10K50/80 ,  H10K59/121 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/131

Abstract: An organic light-emitting display apparatus includes a plurality of first emission units, each including a first organic light-emitting device configured to emit light in at least a first direction and through a first display surface, a plurality of second emission units, each including a second organic light-emitting device configured to emit in a second direction opposite to the first direction and through a second display surface. The first emission units and the second emission units are alternately disposed. The apparatus further includes a transmissive area disposed adjacent to but not overlapping with the plurality of first emission units and the plurality of second emission units when viewed from a direction perpendicular to the first display surface, and capable of transmitting external light through the first and second display surfaces in the transmissive area.

公开(公告)号：US11869441B2

公开(公告)日：2024-01-09

申请号：US17866820

申请日：2022-07-18

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo ,  Woomi Bae ,  Youngha Sohn

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

CPC classification number: G09G3/3266 ,  G09G3/035 ,  G09G3/3275 ,  G09G2330/021

Abstract: A driving controller divides a display panel into first and second display areas according to an operation mode, outputs a start signal indicating a start of one frame and a masking signal for indicating a start of the second display area, sets a basic driving frequency to a normal frequency when the operation mode is a normal frequency mode, sets the basic driving frequency to a frequency lower than the normal frequency when the operation mode is a multi-frequency mode, and outputs the start signal and the masking signal. The first display area operates at a first driving frequency and the second display area operates at a second driving frequency, and the scan driving circuit sequentially drives scan lines in synchronization with the start signal, and stops, in response to the masking signal, driving of some of the scan lines corresponding to the second display area.

公开(公告)号：US11800748B2

公开(公告)日：2023-10-24

申请号：US17242306

申请日：2021-04-28

Applicant: Samsung Display Co., LTD.

Inventor： Hui Nam ,  Hae-Kwan Seo

IPC: H10K59/121 ,  G09G3/20 ,  H10K59/35 ,  H10K59/131 ,  H01L27/12 ,  G09G3/3233 ,  H10K50/81

CPC classification number: H10K59/1213 ,  G09G3/2003 ,  H10K59/131 ,  H10K59/35 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2330/021 ,  H01L27/1214 ,  H10K50/81

Abstract: A display device includes: scan lines extending in a first direction; first data lines, second data lines, and third data lines extending in a second direction; a first driving unit connected to the scan lines and the first data lines; a first light emitting unit connected to the first driving unit; a second driving unit connected to the scan lines and the second data lines; a second light emitting unit connected to the second driving unit; a third driving unit connected to the scan lines and the second data lines; and a third light emitting unit connected to the third driving unit. The first light emitting unit overlaps the second driving unit or the third driving unit, the second light emitting unit overlaps the first driving unit or the third driving unit, and the third light emitting unit overlaps the first driving unit or the second driving unit.

公开(公告)号：US11640777B2

公开(公告)日：2023-05-02

申请号：US16918377

申请日：2020-07-01

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo

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

Abstract: A display apparatus includes: a first display area, a second display area, a first back gate signal applying line connected to back gate electrodes of pixels in the first display area and a second back gate signal applying line connected to back gate electrodes of pixels in the second display area; a back gate signal generator configured to generate a first back gate signal applied to the back gate electrodes of the pixels in the first display area and a second back gate signal applied to the back gate electrodes of the pixels in the second display area; a gate driver configured to output a gate signal; a data driver configured to output a data voltage; and a driving controller configured to control a driving timing, wherein the driving controller, the data driver and the back gate signal generator form an integrated driver.

公开(公告)号：US11600231B2

公开(公告)日：2023-03-07

申请号：US17354857

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Joon-Chul Goh ,  Soon-Dong Kim ,  Hae-Kwan Seo

IPC: G09G3/3266 ,  G09G3/3225

Abstract: A scan driving circuit includes: a driving circuit configured to output a scan signal to an output terminal in response to clock signals and a carry signal; and a masking circuit configured to stop the driving circuit from outputting the scan signal in response to a masking signal and a signal indicating an operating state of the driving circuit.

公开(公告)号：US11455937B2

公开(公告)日：2022-09-27

申请号：US17306100

申请日：2021-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo

IPC: G09G3/3225 ,  G09G3/20

Abstract: A display device includes a display panel, a gate driving block which outputs a scan signal to the display panel, a source driving block which outputs a data signal to the display panel, and a controller. In the low-frequency mode, the controller divides the display panel into a first area operated at a first frequency lower than the reference frequency and a second area operated at a second frequency lower than the first frequency according to the image data, the source driving block outputs the data signal to the first area at the first frequency and outputs the data signal to the second area at the second frequency, and the gate driving block outputs a first scan signal to the first area at the first frequency and outputs a second scan signal to the second area at the second frequency.

公开(公告)号：US11256298B2

公开(公告)日：2022-02-22

申请号：US17021038

申请日：2020-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo

IPC: G06F1/16 ,  G09G3/00

Abstract: A display device includes a substrate and a connector. The substrate includes a display area, a first pad area, and a second pad area. The display area has a plurality of pixels. The first pad area and the second pad area are adjacent respective sides of the display area and are connected to different ones of the pixels. The connector connects the first pad area and the second pad area when the substrate is bent.

公开(公告)号：US11011083B2

公开(公告)日：2021-05-18

申请号：US16835518

申请日：2020-03-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wontae Kim ,  Hae-Kwan Seo

IPC: G09G5/00 ,  G09F9/30 ,  G09G3/3275 ,  G09G3/3225

Abstract: A display device includes: a display panel including a first display region, a second display region, and a third display region between the first display region and the second display region; and a display panel driving circuit configured to drive the display panel, wherein the display panel driving circuit drives the first display region, the second display region, and the third display region in a full pixel-row driving manner when an image is displayed on the first display region, the second display region, and the third display region, and wherein the display panel driving circuit drives the first display region in the full pixel-row driving manner and drives the third display region in a partial pixel-row driving manner when the image is displayed only on the first display region and the third display region.