公开(公告)号：US20230085612A1

公开(公告)日：2023-03-16

申请号：US17881010

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  G09G3/32

Abstract: A display panel includes: a plurality of pixels, each of which includes a light emitting element and a pixel circuit for driving the light emitting element; a plurality of scan lines connected to the pixel circuit; and a data line connected to the pixel circuit. The pixel circuit includes: a transfer capacitor connected to a first node and a second node; a first circuit part including the first node; a second circuit including the second node and connected with the light emitting element; and a test unit connected to the first circuit part and the second circuit part.

公开(公告)号：US20230008643A1

公开(公告)日：2023-01-12

申请号：US17709906

申请日：2022-03-31

Applicant: Samsung Display Co., Ltd.

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

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

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：US20210083211A1

公开(公告)日：2021-03-18

申请号：US17086520

申请日：2020-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GYUNGSOON PARK ,  ILGON KIM ,  MINJAE JEONG

IPC: H01L51/00 ,  H01L51/52 ,  H01L27/32

Abstract: A display device including: a plurality of unit portions repeatedly arranged in a first direction and a second direction, wherein the second direction is different from the first direction; a plurality of display units respectively arranged above the plurality of unit portions; and a plurality of encapsulation layers respectively encapsulating the plurality of display units, wherein each of the plurality of unit portions includes an island where a display unit and an encapsulation layer are located, and at least one connection unit connected to the island, and islands of two unit portions adjacent to each other are spaced apart from each other, and connection units of the two unit portions adjacent to each other are connected to each other.

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.

公开(公告)号：US20230013346A1

公开(公告)日：2023-01-19

申请号：US17701089

申请日：2022-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： HYUNJOON KIM ,  HAEMIN KIM ,  BYUNGCHANG YU ,  MINJAE JEONG

IPC: H01L27/32

Abstract: A pixel of a display device includes a light emitting diode, a capacitor, and first to fourth transistors, where the first transistor is connected to the light emitting diode, and the second transistor is connected between the first transistor and a data line. A first electrode of the first transistor receives a data signal during a driving frame and a bias signal during a bias frame through the data line and the second transistor.