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：US20240038148A1

公开(公告)日：2024-02-01

申请号：US18354419

申请日：2023-07-18

Applicant: Samsung Display Co., LTD.

Inventor： JUNHYUN PARK ,  HYEONGSEOK KIM ,  HEEJEAN PARK ,  MINJAE JEONG ,  MUKYUNG JEON

IPC: G09G3/32 ,  H10K59/121

CPC classification number: G09G3/32 ,  H10K59/1213 ,  G09G2300/0852 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/08

Abstract: A display device includes a substrate, a first active pattern above the substrate, a first gate layer above the first active pattern, and including a first capacitor electrode, a second gate layer above the first gate layer, and including a second capacitor electrode overlapping the first capacitor electrode, a second active pattern above the second gate layer, and including an extension portion above the second capacitor electrode, and a connection electrode above the second active pattern, and connecting the extension portion and the first capacitor electrode.

公开(公告)号：US20240013712A1

公开(公告)日：2024-01-11

申请号：US18372618

申请日：2023-09-25

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

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

Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.

公开(公告)号：US20230290287A1

公开(公告)日：2023-09-14

申请号：US18088716

申请日：2022-12-26

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2300/0426 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2300/0852 ,  G09G2330/12 ,  G09G2300/0861

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor including a first electrode connected to a data line, a second electrode, and a gate electrode connected to a first scan line, a third transistor including a first electrode electrically connected to the first node, a second electrode connected to the second electrode of the first transistor, and a gate electrode connected to a second scan line, and a test transistor including a first electrode connected to the first electrode of the first transistor, a second electrode electrically connected to the second electrode of the second transistor, and a gate electrode connected to the second scan line.

公开(公告)号：US20230252935A1

公开(公告)日：2023-08-10

申请号：US18066977

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/32 ,  G09G3/006 ,  G09G2300/0842 ,  G09G2300/0426 ,  G09G2310/0275 ,  G09G2330/12

Abstract: A pixel circuit includes: a light emitting element; a driving transistor to generate a driving current; a write transistor including a control electrode to receive a write gate signal, a first electrode to receive a data voltage, and a second electrode connected to a first electrode of a storage capacitor; a first compensation transistor including a control electrode to receive a compensation gate signal, a first electrode connected to a control electrode of the driving transistor, and a second electrode connected to a first electrode of the driving transistor; the storage capacitor including the first electrode connected to the second electrode of the write transistor, and a second electrode connected to the control electrode of the driving transistor; and a test transistor including a control electrode, a first electrode to receive the data voltage, and a second electrode connected to a second electrode of the driving transistor.

公开(公告)号：US20230069447A1

公开(公告)日：2023-03-02

申请号：US17748521

申请日：2022-05-19

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

Abstract: A pixel circuit includes a light emitting element, a write transistor configured to apply a data voltage to an input node in response to a write gate signal, a storage capacitor configured to store the data voltage, a driving transistor configured to apply a driving current to the light emitting element based on the data voltage, a first compensation transistor configured to compensate for a threshold voltage of the driving transistor in response to a compensation gate signal, a first initialization transistor configured to apply a first initialization voltage to a control electrode of the driving transistor in response to an initialization gate signal, and a boost capacitor including a first electrode to which a previous initialization gate signal applied to a previous pixel row is applied and a second electrode connected to the control electrode of the driving transistor.

公开(公告)号：US20230066949A1

公开(公告)日：2023-03-02

申请号：US17674107

申请日：2022-02-17

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.