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：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：US20210320164A1

公开(公告)日：2021-10-14

申请号：US17152934

申请日：2021-01-20

Applicant: Samsung Display Co., Ltd.

Inventor： SUNHWA LEE ,  MUKYUNG JEON ,  Hyeongseok KIM ,  GyungSoon PARK ,  Youngwan SEO ,  KYUNGHOON CHUNG

IPC: H01L27/32 ,  G09G3/3258

Abstract: A display panel includes a first display area having a first light transmittance and a second display area having a second light transmittance that is higher than the first light transmittance. The display panel further comprises a plurality of first pixels disposed in the first display area and a plurality of second pixels disposed in the second display area. A first power line is connected to the plurality of first pixels. The first power line is configured to provide a first power voltage. A second power line is connected to the plurality of second pixels. The second power line is configured to provide a second power voltage having a voltage level that is different from a voltage level of the first power voltage.

公开(公告)号：US20250160166A1

公开(公告)日：2025-05-15

申请号：US19025079

申请日：2025-01-16

Applicant: Samsung Display Co., Ltd.

Inventor： JAEHYUNG CHO ,  DONG-HOON LEE ,  MUKYUNG JEON

IPC: H10K59/40 ,  G06F3/044 ,  H10K59/131 ,  H10K59/80

Abstract: A display device comprising a display panel and an input sensor comprising detection electrodes overlapping an active area, and first trace lines connected to the detection electrodes, having a portion overlapping the active area, and comprising mesh lines overlapping the active area, having a portion extending in a first direction, and comprising a first row mesh line having a portion extending in the first direction, and a second row mesh line having a portion extending in the first direction, and spaced apart from the first row mesh line in a second direction, and a second portion electrically connected to the mesh lines, overlapping the peripheral area, extending in the second direction, and comprising a first column wiring connected to the first row mesh line and extending in the second direction, and a second column wiring connected to the second row mesh line and extending in the second direction.

公开(公告)号：US20250029560A1

公开(公告)日：2025-01-23

申请号：US18906167

申请日：2024-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  MUKYUNG JEON ,  HEEJEAN PARK ,  YUJIN LEE ,  CHEOL-GON LEE

IPC: G09G3/3233 ,  G09G3/32

Abstract: A pixel includes a light emitting element, a driving switching element, an initialization voltage terminal, a data initialization switching element set, and an adjustment switching element. The driving switching element may provide a driving current to the light emitting element. The adjustment switching element is electrically connected to the data initialization switching element in series. At least one of the data initialization switching element set and the adjustment switching element may control an electrical connection between the control electrode of the driving switching element and the initialization voltage terminal. A control electrode of the adjustment switching element is electrically connected to an input electrode of the adjustment switching element.

公开(公告)号：US20250014525A1

公开(公告)日：2025-01-09

申请号：US18657656

申请日：2024-05-07

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  SOIL YOON ,  CHEOL-GON LEE ,  MUKYUNG JEON

IPC: G09G3/3275 ,  G09G3/32 ,  G09G3/3233

Abstract: A display device includes a base layer having a display region and a non-display region, a circuit layer on the base layer, and an element layer on the circuit layer and including light emitting elements and light receiving elements corresponding to the display region. The circuit layer includes pixel drive circuits connected to the light emitting elements, sensor drive circuits connected to the light receiving elements, readout lines connected to the sensor drive circuits, first data lines connected to a first group of pixel drive circuits from among the pixel drive circuits, second data lines spaced from the first data lines in a first direction and connected to a second group of pixel drive circuits from among the pixel drive circuits, and data connecting lines electrically connected with the second data lines, respectively, in the display region.

公开(公告)号：US20240428715A1

公开(公告)日：2024-12-26

申请号：US18588020

申请日：2024-02-27

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/20

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 is configured to emit light based on a data writing gate signal, a data initialization gate signal, a compensation gate signal, the emission signal and the data voltage. When the data writing gate signal is driven in a maximum frequency in a variable frequency driving, a frequency of at least one of the data initialization gate signal and the compensation gate signal is less than a frequency of the data writing gate signal.

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：US20240395065A1

公开(公告)日：2024-11-28

申请号：US18791434

申请日：2024-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  HEEJEAN PARK ,  YUJIN LEE ,  CHEOL-GON LEE ,  MUKYUNG JEON

IPC: G06V40/13 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/121 ,  H10K59/40

Abstract: Disclosed is a display device including a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of pixels and a plurality of sensors. Each of the plurality of pixels includes a light emitting element and a pixel drive circuit connected to the light emitting element to control driving of the light emitting element. Each of the plurality of sensors includes a light sensing unit including a plurality of light sensing elements, a sensor drive circuit that is connected to at least two light sensing elements and that outputs a sensing signal in response to light, and a routing wire that electrically connects the at least two light sensing elements to each other.

公开(公告)号：US20240284753A1

公开(公告)日：2024-08-22

申请号：US18523428

申请日：2023-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： CHEOL-GON LEE ,  HEERIM SONG ,  MUKYUNG JEON

IPC: H10K59/65 ,  G06V40/13 ,  H10K59/123 ,  H10K59/40

CPC classification number: H10K59/65 ,  G06V40/1318 ,  H10K59/123 ,  H10K59/40

Abstract: A display device includes: a first pixel unit including a first sensor; and a second pixel unit including a second sensor. The first sensor includes: a first light receiving element; a first-first transistor connected to the first light receiving element; and a first connecting electrode connecting the first light receiving element to the first-first transistor, and extending in a first direction from a first connection point with the first light receiving element. The second sensor includes: a second light receiving element; a first-second transistor connected to the second light receiving element; and a second connecting electrode connecting the second light receiving element to the first-second transistor, and extending in the first direction and a direction opposite to the first direction from a second connection point with the second light receiving element.