公开(公告)号：US20250022411A1

公开(公告)日：2025-01-16

申请号：US18902926

申请日：2024-10-01

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

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：US20250008797A1

公开(公告)日：2025-01-02

申请号：US18886950

申请日：2024-09-16

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG

IPC: H10K59/131 ,  H10K59/126

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：US20240096282A1

公开(公告)日：2024-03-21

申请号：US18521418

申请日：2023-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG ,  MEEHYE JUNG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08

Abstract: A pixel includes: a light emitting diode; a first transistor; a first capacitor connected between a first node and a gate electrode of the first transistor; a second transistor including a first electrode electrically connected to the gate electrode of the first transistor, a second electrode and a gate electrode which receives a first scan signal; and a third transistor including a first electrode electrically connected to the second electrode of the second transistor, a second electrode electrically connected to a third voltage line, and a gate electrode which receives a second scan signal. During an initialization period, an initialization voltage provided from the third voltage line is provided to the gate electrode of the first transistor through the third and second transistors, and, when the initialization period is terminated, at least one of the second transistor and the third transistor is turned off.

公开(公告)号：US20240096270A1

公开(公告)日：2024-03-21

申请号：US18363556

申请日：2023-08-01

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0247

Abstract: A display apparatus includes a display panel including a pixel, a gate driver providing a gate signal to the pixel, a data driver providing a data voltage to the pixel and an emission driver providing an emission signal to the pixel. The pixel includes a driving switching element applying a driving current to the light emitting element, a storage capacitor connected to the driving switching element, a bias capacitor connected to the storage capacitor and receiving a bias gate signal, a threshold voltage compensation switching element connected to an electrode of the driving switching element and a light emitting element initialization switching element connected to an electrode of the light emitting element. A control signal applied to an electrode of the threshold voltage compensation switching element and a control signal applied to an electrode of the light emitting element initialization switching element are generated from different signal generators.

公开(公告)号：US20240029641A1

公开(公告)日：2024-01-25

申请号：US18374070

申请日：2023-09-28

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2310/08 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/043

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：US20240029637A1

公开(公告)日：2024-01-25

申请号：US18323336

申请日：2023-05-24

Applicant: Samsung Display Co., LTD.

Inventor： JUNHYUN PARK ,  YOUNGWAN SEO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278 ,  G09G2330/06

Abstract: A display device comprises a gate driver configured to receive a first gate driving voltage, configured to receive a second gate driving voltage that is greater than the first gate driving voltage, and configured to transmit a gate signal to a pixel, a data driver configured to transmit a data voltage to the pixel, and an electrostatic protection circuit configured to receive the first gate driving voltage and the data voltage, and including a first electrostatic diode including a first gate terminal connected to the first gate driving voltage, a first terminal connected to the first gate driving voltage, a second terminal connected to the data voltage, and a first lower gate terminal connected to a lower bias voltage.

公开(公告)号：US20220284850A1

公开(公告)日：2022-09-08

申请号：US17532220

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  SEON YOUNG CHOI ,  SUNHWA LEE

IPC: G09G3/32

Abstract: A pixel includes a light emitting element, a data write switching element, a driving switching element, a light emitting element initialization switching element and a boosting capacitor. The data write switching element is configured to receive a data voltage from the outside. The driving switching element is configured to apply a driving current to the light emitting element based on the data voltage. The light emitting element initialization switching element is configured to apply an initialization voltage to a first electrode of the light emitting element. The boosting capacitor includes a first electrode connected to a control electrode of the light emitting element initialization switching element and a second electrode connected to an output electrode of the data write switching element.

公开(公告)号：US20220270542A1

公开(公告)日：2022-08-25

申请号：US17540075

申请日：2021-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  MINJAE JEONG

IPC: G09G3/32

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：US20220199960A1

公开(公告)日：2022-06-23

申请号：US17653895

申请日：2022-03-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SUNGJAE MOON ,  DONGWOO KIM ,  JUNHYUN PARK ,  KANGMOON JO

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes a first substrate including a display area and a peripheral area outside the display area, pixels arranged in the display area and each including an emission area defined by a non-emission area, a thin-film encapsulation layer covering the pixels and including at least one inorganic encapsulation layer and at least one organic encapsulation layer, a pattern layer above the thin-film encapsulation layer, the pattern layer including a first light-blocking pattern shielding at least a portion of the non-emission area, and a second substrate facing the first substrate and including a second light-blocking pattern shielding at least a portion of the non-emission area.

公开(公告)号：US20250160149A1

公开(公告)日：2025-05-15

申请号：US18801849

申请日：2024-08-13

Applicant: Samsung Display Co., Ltd.

Inventor： SOIL YOON ,  JUNHYUN PARK ,  YOUNGWAN SEO

IPC: H10K59/131 ,  G09G3/3233 ,  H10K59/121 ,  H10K59/88

Abstract: Provided is a display device including a first pixel and a second pixel. Each of the first pixel and the second pixel may include a light emitting element, a driving transistor connected to the light emitting element and a power line and controlled by a voltage of a first node, a switching transistor connected to a data line and a second node and controlled by a write scan signal, a capacitor connected to the first node and the second node, and a bias transistor connected to the driving transistor and a bias line, and controlled by a bias scan signal. The first and second pixels may share the bias transistor.