公开(公告)号：US20240404457A1

公开(公告)日：2024-12-05

申请号：US18798814

申请日：2024-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

Abstract: A pixel of a display device includes a first transistor including a top gate coupled to a first node, a first terminal, a second terminal coupled to a second node, and a bottom gate, a second transistor including a gate coupled to a writing signal line, a first terminal coupled to a data line, and a second terminal coupled to the first node, a storage capacitor coupled between the first node and the second node, a light emitting element coupled between the second node and a second power supply voltage line, and a seventh transistor including a gate coupled to an initialization signal line, a first terminal coupled to a bias voltage line, and a second terminal coupled to the bottom gate.

公开(公告)号：US20240021165A1

公开(公告)日：2024-01-18

申请号：US18204395

申请日：2023-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MINJAE JEONG ,  MUKYUNG JEON

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2320/0247

Abstract: Provided is a scan driver for applying a bias voltage comprising a kth stage that includes an inputter transmitting an input signal to a first node, a stress reliever disposed between the first node and a second node, a carry signal outputter receiving a high-power-supply voltage and a second clock signal and outputting the second clock signal, an output signal outputter receiving the high-power-supply voltage and a third clock signal and outputting the third clock signal, a maintainer transmitting the first clock signal to a third node, and a stabilizer applying a first low-power-supply voltage to the third node and the high-power-supply voltage to the first node. The first and second clock signals selectively toggle between the high-power-supply voltage and the first low-power-supply voltage, the third clock signal selectively toggles between the high-power-supply voltage and a second low-power-supply voltage, and the bias voltage is adjusted as the second low-power-supply voltage varies.

公开(公告)号：US20230360590A1

公开(公告)日：2023-11-09

申请号：US18224079

申请日：2023-07-20

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0275 ,  G09G2310/0267 ,  G09G2310/061

Abstract: A pixel of a display device includes a first transistor including a top gate coupled to a first node, a first terminal, a second terminal coupled to a second node, and a bottom gate, a second transistor including a gate coupled to a writing signal line, a first terminal coupled to a data line, and a second terminal coupled to the first node, a storage capacitor coupled between the first node and the second node, a light emitting element coupled between the second node and a second power supply voltage line, and a seventh transistor including a gate coupled to an initialization signal line, a first terminal coupled to a bias voltage line, and a second terminal coupled to the bottom gate.

公开(公告)号：US20250081782A1

公开(公告)日：2025-03-06

申请号：US18950774

申请日：2024-11-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GYUNGSOON PARK ,  MINJAE JEONG ,  KEUMNAM KIM ,  SEHYOUNG CHO ,  JONGHO HONG

IPC: H10K59/131 ,  G09G3/00 ,  G09G3/20 ,  H10K77/10 ,  H10K102/00

Abstract: A flexible display is disclosed. In one aspect, the display includes at least one first pattern including a plurality of display elements configured to display an image and extending in a first direction. The display device also includes at least one second pattern extending in a second direction and overlapping at least a portion of the first pattern. The second pattern has a curved shape in the first direction and the second direction crosses the first direction. The first and second patterns form at least one cavity region defining a space therebetween and the first and second patterns form a mesh structure.

公开(公告)号：US20240274077A1

公开(公告)日：2024-08-15

申请号：US18402189

申请日：2024-01-02

Applicant: Samsung Display Co., LTD.

Inventor： MINJAE JEONG ,  BON-YONG KOO ,  TAEGYUN KIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/045

Abstract: A pixel circuit and a display device including the pixel circuit compensates for a threshold voltage of a first driving transistor using an internal compensation circuit and senses a second driving current of a second driving transistor through sensing transistor using an external compensation circuit to compensate for threshold voltages and mobility of the first and second driving transistor.

公开(公告)号：US20230274690A1

公开(公告)日：2023-08-31

申请号：US17970623

申请日：2022-10-21

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.

公开(公告)号：US20220352291A1

公开(公告)日：2022-11-03

申请号：US17685773

申请日：2022-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG

IPC: H01L27/32

Abstract: An electronic device includes a display panel including a plurality of pixels. Each of the plurality of pixels includes a light-emitting diode, a power line, an initialization voltage line, an initialization signal line, a bias voltage line, a transistor including a first gate in contact with the initialization signal line through a first contact and electrically connected between the initialization voltage line and the anode, and a transistor including a second gate in contact with the initialization signal line through a second contact and electrically connected between the power line and the bias voltage line. In a plan view, the initialization signal line does not overlap the power line.

公开(公告)号：US20240194125A1

公开(公告)日：2024-06-13

申请号：US18444976

申请日：2024-02-19

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/08

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to provide a gate signal to the pixel. The data driver is configured to provide a data voltage to the pixel. The emission driver is configured to provide an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element and a bias switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is configured to provide a bias voltage to an input electrode of the driving switching element. A frequency of a bias gate signal applied to a control electrode of the bias switching element is greater than a frequency of a data write gate signal applied to the pixel.

公开(公告)号：US20230329053A1

公开(公告)日：2023-10-12

申请号：US18209556

申请日：2023-06-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GYUNGSOON PARK ,  MINJAE JEONG ,  KEUMNAM KIM ,  SEHYOUNG CHO ,  JONGHO HONG

IPC: H10K59/131 ,  G09G3/20 ,  G09G3/00 ,  H10K77/10

CPC classification number: H10K59/131 ,  G09G3/2003 ,  G09G3/035 ,  H10K77/111 ,  G09G2380/02 ,  G09G2300/0426 ,  Y02E10/549 ,  H10K2102/311

Abstract: A flexible display is disclosed. In one aspect, the display includes at least one first pattern including a plurality of display elements configured to display an image and extending in a first direction. The display device also includes at least one second pattern extending in a second direction and overlapping at least a portion of the first pattern. The second pattern has a curved shape in the first direction and the second direction crosses the first direction. The first and second patterns form at least one cavity region defining a space therebetween and the first and second patterns form a mesh structure.

公开(公告)号：US20230230537A1

公开(公告)日：2023-07-20

申请号：US18123847

申请日：2023-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2300/0426 ,  G09G2310/08

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to provide a gate signal to the pixel. The data driver is configured to provide a data voltage to the pixel. The emission driver is configured to provide an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element and a bias switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is configured to provide a bias voltage to an input electrode of the driving switching element. A frequency of a bias gate signal applied to a control electrode of the bias switching element is greater than a frequency of a data write gate signal applied to the pixel.