公开(公告)号：US20240251599A1

公开(公告)日：2024-07-25

申请号：US18464308

申请日：2023-09-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONG-HOON LEE ,  JANGMI KANG ,  MYUNGHOON PARK ,  MINKYU WOO ,  BYUNGCHANG YU

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

CPC classification number: H10K59/1216 ,  G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861

Abstract: Disclosed is a display device which includes pixel drivers, each of which includes a first transistor switched by a voltage of a node and electrically connected between a second electrode and a second power supply line, a second transistor electrically connected between the node and a data line and switched by a write scan signal, and a capacitor including a first capacitor electrode electrically connected to the node and a second capacitor electrode electrically connected between the second power supply line and the first transistor. First electrodes of light emitting elements overlap each of the first capacitor electrodes of the pixel drivers.

公开(公告)号：US20240237422A9

公开(公告)日：2024-07-11

申请号：US18492870

申请日：2023-10-24

Applicant: Samsung Display Co., Ltd.

Inventor： JANGMI KANG ,  MYUNGHOON PARK ,  BYUNGCHANG YU ,  DONG-HOON LEE

IPC: H10K59/122 ,  H10K59/131

CPC classification number: H10K59/122 ,  H10K59/131

Abstract: A display panel includes a first peripheral upper electrode disposed on an insulating layer in a peripheral area, a second peripheral upper electrode disposed on the insulating layer in the peripheral area and disposed closer to the display area than the first peripheral upper electrode, a display separator disposed between the upper electrode of the first light emitting device and the upper electrode of the second light emitting device, and a peripheral separator disposed between the first peripheral upper electrode and the second peripheral upper electrode to realize superior electrical reliability.

公开(公告)号：US20240224670A1

公开(公告)日：2024-07-04

申请号：US18544204

申请日：2023-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： JUNG SUK BANG ,  JANGMI KANG ,  TAEHYUN KIM ,  DONG-HOON LEE

IPC: H10K59/131

CPC classification number: H10K59/131

Abstract: A display device includes: a substrate having a first portion and a second portion adjacent to the first portion in a first direction; a plurality of first pixels; and a plurality of second pixels: a plurality of light emitters comprising a plurality of light emitting elements and arranged in the first direction; a plurality of circuits comprising a plurality of transistors arranged in the first direction; a plurality of first extension lines connected to the circuit units; and a plurality of second extension lines connected to the first extension lines and the light emitters, wherein in an order of the circuits in a direction away from the first portion, a length of each of the first extension lines connected to k+1-th circuits is different from that of each of the first extension lines connected to k-th circuits, and k is a natural number greater than 1.

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.