公开(公告)号：US11487142B2

公开(公告)日：2022-11-01

申请号：US17328555

申请日：2021-05-24

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Wook Kim ,  Won Kyu Kwak ,  Jin Woo Park ,  Hyun-Chol Bang

IPC: G09G3/36 ,  G02F1/133 ,  G02F1/1343 ,  H01L27/32 ,  H01L51/52 ,  G02F1/1368

Abstract: A display device includes a substrate including a first display area and a second display area. The first display area includes first pixel areas, each including one or more first pixels. The second display area includes second pixel areas including one or more second pixels and a light transmittance area having a higher light transmittance than the second pixel area. The first and second display areas include a common electrode that transmits a constant common voltage. The common electrode in the second display area includes patterned regions that correspond to a first light transmittance area included in the light transmittance area. A thickness of the common electrode in the patterned regions is smaller than a thickness of the common electrode in a region other than the patterned regions or equals zero. The patterned regions and the second pixel areas extend alternately along a first direction in the second display area.

公开(公告)号：US20220262291A1

公开(公告)日：2022-08-18

申请号：US17735332

申请日：2022-05-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Sae LEE ,  Won Kyu Kwak ,  Ki Myeong Eom

IPC: G09G3/00 ,  G06F1/16 ,  G09G3/3291

Abstract: A display device includes a display area configured to include a plurality of pixels and a plurality of data lines connected to the pixels. A hole area is disposed within the display area. A hole crack detection line is disposed adjacent to the hole area and surrounds the hole area. The device includes first and second detection lines which include first and second detection transfer lines and first and second detection receiving lines, respectively. A test controller electrically connects the first detection receiving line to a first data line and the second detection receiving line to a second data line. Pixels connected to the first data line that is connected to a first bright-line transistor and pixels connected to the second data line that is connected to a second bright-line transistor are configured to emit light when a crack occurs in the hole crack detection line.

公开(公告)号：US11341902B2

公开(公告)日：2022-05-24

申请号：US16985185

申请日：2020-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Sic Lee ,  Won Kyu Kwak

IPC: G09G3/32 ,  G09G3/3233

Abstract: A display device including a display panel including scan lines, emission control lines, and pixels connected to the scan lines and the emission control lines; a first emission driver sequentially providing first emission control signals to odd-numbered emission control lines among the emission control lines in a first frame section; a second emission driver sequentially providing second emission control signals to even-numbered emission control lines among the emission control lines in a second frame section that is continuous from the first frame section; and a scan driver sequentially providing scan signals to the scan lines in each of the first and second frame sections.

公开(公告)号：US20220139280A1

公开(公告)日：2022-05-05

申请号：US17575109

申请日：2022-01-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Sae Lee ,  Jung Hoon Shim ,  Won Kyu Kwak ,  Ki Myeong Eom

IPC: G09G3/00 ,  G09G3/20

Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.

公开(公告)号：US11308879B2

公开(公告)日：2022-04-19

申请号：US17103769

申请日：2020-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won Park ,  Won Kyu Kwak ,  Seung Kyu Lee

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: An organic light emitting display device includes a pixel, a data line, a first scan line, a second scan line, and a scan driver. The pixel includes a first transistor, a second transistor, and a third transistor. A source of the first transistor is electrically connected to a drain of the third transistor. A source of the second transistor is configured to receive an initialization voltage. The data line is electrically connected to a source of the third transistor and may transmit a data voltage higher than the initialization voltage. The first scan line is electrically connected to a gate of the third transistor. The second scan line is electrically connected to a gate of the second transistor. The scan driver may provide an initializing scan signal to the second scan line at least two horizontal periods before providing an initial scan signal to the first scan line.

公开(公告)号：US11302262B2

公开(公告)日：2022-04-12

申请号：US17107677

申请日：2020-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hai-Jung In ,  Won Kyu Kwak ,  Jae-Sic Lee

IPC: G09G3/3275 ,  G09G3/3266

Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered sub-frame.

公开(公告)号：US11257422B2

公开(公告)日：2022-02-22

申请号：US17078088

申请日：2020-10-22

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Jin Tae Jeong ,  Ji Hyun Ka ,  Won Kyu Kwak ,  Hyung Jun Park ,  Chang Soo Pyon ,  Ji Eun Lee ,  Hai Jung In ,  Won Mi Hwang

IPC: G09G3/30 ,  G09G3/32

Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.

公开(公告)号：US11158655B2

公开(公告)日：2021-10-26

申请号：US16547060

申请日：2019-08-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Kyu Kwak ,  Jae Yong Lee

IPC: H01L27/12 ,  H01L27/32 ,  H01L51/00

Abstract: A display device is disclosed. In one aspect, the display device includes a substrate including a display area, the display area including a plurality of pixels configured to display an image and a pad area adjacent to the pad area and configured to transfer electrical signals. At least a portion of the pad area is bendable. The display device also includes an insulating layer formed over the substrate and including a bending groove in the pad area. The bending groove includes a sidewall. A plurality of peripheral wires is formed over the insulating layer, and a cutoff portion is connected to the sidewall and disposed between adjacent peripheral wires.

公开(公告)号：US11107400B2

公开(公告)日：2021-08-31

申请号：US16599890

申请日：2019-10-11

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hyun Ka ,  Won Kyu Kwak ,  Han Sung Bae

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266

Abstract: A pixel includes a plurality of transistors and an organic light emitting diode. The transistors include a first transistor to control an amount of current flowing to the organic light emitting diode. Additional transistors are connected to the first transistor or the organic light emitting diode. The first transistor is a Low Temperature Poly-Silicon (LTPS) thin film transistor. One or more of the other transistors are oxide semiconductor transistors.

公开(公告)号：US11061295B2

公开(公告)日：2021-07-13

申请号：US16657442

申请日：2019-10-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun-Chol Bang ,  Won Kyu Kwak ,  Dong Wook Kim ,  Jin Woo Park ,  Sun-Ja Kwon

IPC: G02F1/1368 ,  G02F1/1362

Abstract: A display device includes a first display area including a plurality of first pixel areas and a second display area including a plurality of second pixel areas and a plurality of light transmitting areas. Each of the plurality of first pixel areas includes at least one first pixel to display an image. Each of the plurality of second pixel areas includes at least one second pixel to display the image. The light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area. In the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction.