公开(公告)号：US12142213B2

公开(公告)日：2024-11-12

申请号：US18175412

申请日：2023-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Jinsung An ,  Youngtaek Oh ,  Sungho Kim ,  Yongjae Kim ,  Sugwoo Jung

IPC: G09G3/3233 ,  H10K59/121 ,  H10K59/124 ,  H10K59/131

Abstract: A display device includes: a light emitting diode; a driving transistor configured to transmit driving current to the light emitting diode; a bias transistor including an input terminal electrically connected to a bias voltage line; a first light emission control transistor including an output terminal electrically connected to an in put terminal of the driving transistor, and a gate electrode configured to receive a light emission control signal; a second light emission control transistor including an input terminal electrically connected to an output terminal of the driving transistor, and a gate electrode configured to receive the light emission control signal; a bias bridge electrode electrically in contact with each of an output terminal of the bias transistor and the input terminal of the driving transistor; and a first light emission control bridge electrode configured to receive the light emission control signal.

公开(公告)号：US20240324305A1

公开(公告)日：2024-09-26

申请号：US18507194

申请日：2023-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seunghyun Lee ,  Sewan Son ,  Sungho Kim ,  Minwoo Woo ,  Kwanhee Lee ,  Jiseon Lee ,  Kyeongwoo Jang ,  Sugwoo Jung

IPC: H10K59/122 ,  H10K59/131

CPC classification number: H10K59/122 ,  H10K59/131

Abstract: A display apparatus includes a substrate including a display area and a non-display area outside the display area, a pixel circuit layer disposed on the substrate and including at least one transistor, a first sub-pixel electrode, a second sub-pixel electrode, and a third sub-pixel electrode spaced apart from each other and disposed on the pixel circuit layer, a first conductive bank layer disposed on the first sub-pixel electrode and including a first opening overlapping the first sub-pixel electrode, a second conductive bank layer disposed on the second sub-pixel electrode and including a second opening overlapping the second sub-pixel electrode, and a third conductive bank layer disposed on the third sub-pixel electrode and including a third opening overlapping the third sub-pixel electrode, wherein the first conductive bank layer, the second conductive bank layer, and the third conductive bank layer are spaced apart from each other.

公开(公告)号：US20240321909A1

公开(公告)日：2024-09-26

申请号：US18509356

申请日：2023-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： Semyung Kwon ,  Sungho Kim ,  Injun Bae ,  Sugwoo Jung

IPC: H01L27/12 ,  G09G3/32

CPC classification number: H01L27/1248 ,  G09G3/32 ,  H01L27/1225 ,  H01L27/124 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/08

Abstract: A display apparatus includes a substrate having a display area and a peripheral area outside the display area, a transistor in the display area and a light-emitting element electrically connected to the transistor, and a scan driver in the peripheral area, wherein the scan driver includes a first transistor disposed on the substrate and including a first semiconductor layer comprising an oxide semiconductor and a first gate electrode overlapping the first semiconductor layer, a second transistor disposed on the substrate and including a second semiconductor layer comprising a silicon semiconductor and a second gate electrode overlapping the second semiconductor layer, and insulating layers disposed on the substrate and defining dummy holes not overlapping the first semiconductor layer and the second semiconductor layer, wherein the dummy holes are spaced apart from the first semiconductor layer and the second semiconductor layer and overlap dummy semiconductor layers adjacent to the first semiconductor layer.

公开(公告)号：US20240321203A1

公开(公告)日：2024-09-26

申请号：US18525303

申请日：2023-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jinsung An ,  Sungho Kim ,  Yongjae Kim ,  Yoonjee Shin ,  Sugwoo Jung

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/021

Abstract: A pixel in which a luminance difference may be reduced during low-frequency driving, and a display apparatus including the same, there is provided a pixel that operates at a first scanning rate in a first mode and operates at a second scanning rate in a second mode, wherein the pixel includes a display element having an anode and a cathode, a first transistor that controls the magnitude of a driving current flowing to the display element according to a gate-source voltage, and a second transistor that is in an off state in the first mode and transmits a bias voltage to the first transistor in response to a first scan signal in the second mode.

公开(公告)号：US12057066B2

公开(公告)日：2024-08-06

申请号：US17581975

申请日：2022-01-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jinsung An ,  Sungho Kim ,  Seokje Seong ,  Minwoo Woo ,  Wangwoo Lee ,  Jiseon Lee

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H10K59/131

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2340/0407

Abstract: A display apparatus that prevents visual recognition of flickering in each of display areas having different resolutions includes a first pixel circuit, a first display element, a second pixel circuit, and a second display element. The first pixel circuit includes: a first driving transistor configured to control a first current that flows to the first display element; and a first initializing transistor configured to apply a first initializing voltage to a gate of the first driving transistor in response to a first scan signal. The second pixel circuit includes: a second driving transistor configured to control a second current that flows to the second display element; and a second initializing transistor configured to apply a second initializing voltage having a level different from a level of the first initializing voltage to a gate of the second driving transistor in response to the first scan signal.

公开(公告)号：US11997895B2

公开(公告)日：2024-05-28

申请号：US17381579

申请日：2021-07-21

Applicant: Samsung Display Co., Ltd.

Inventor： Changho Yi ,  Sungho Kim ,  Seokje Seong ,  Yoon-Jong Cho ,  Hyeri Cho

IPC: H10K59/131 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/135 ,  H10K59/12 ,  H10K59/121

CPC classification number: H10K59/131 ,  G02F1/1343 ,  G02F1/134309 ,  G02F1/1345 ,  G02F1/13452 ,  G02F1/13458 ,  G02F1/1357 ,  H10K59/1213 ,  H10K59/1201

Abstract: A display device includes a substrate, a first lower pattern disposed on the substrate, a second lower pattern disposed in a same layer as the first lower pattern and integrally formed with the first lower pattern, an etch stopper disposed on the second lower pattern, a power voltage line disposed on the first lower pattern, and a transfer pattern disposed on the etch stopper, connected to the power voltage line, and contacting the second lower pattern through a contact hole defined through the etch stopper.

公开(公告)号：US11749178B2

公开(公告)日：2023-09-05

申请号：US17548870

申请日：2021-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jinsung An ,  Sungho Kim ,  Seokje Seong ,  Minwoo Woo ,  Wangwoo Lee ,  Jiseon Lee

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/32 ,  G09G3/006 ,  G09G2300/0439 ,  G09G2310/08 ,  G09G2330/12 ,  G09G2340/0435

Abstract: A display device that includes: a display panel including a plurality of pixels respectively connected to a corresponding data line of a plurality of data lines and a corresponding scan line of a plurality of scan lines; and a test circuit connected to the data lines, and wherein the display panel includes a first area having a first light transmittance and a second area having a second light transmittance, wherein the pixels include a first pixel in the first area and a second pixel in the second area, wherein the test circuit provides a first test data signal to a data line connected to the first pixel, and provides a second test data signal to a data line connected to the second pixel, and wherein a voltage level of the first test data signal is different from a voltage level of the second test data signal.

公开(公告)号：US20220336564A1

公开(公告)日：2022-10-20

申请号：US17531840

申请日：2021-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jinsung An ,  Sungho Kim ,  Seokje Seong ,  Minwoo Woo ,  Seunghyun Lee ,  Wangwoo Lee ,  Jiseon Lee

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device includes: a substrate; an inorganic insulating layer arranged on the substrate; a plurality of display elements arranged on the organic insulating layer and including a plurality of first display elements and a plurality of second display elements; a lower line arranged between the substrate and the organic insulating layer, and electrically connecting one of the plurality of first display elements and another one of the plurality of first display elements to each other; and an upper line arranged on the organic insulating layer, and electrically connecting one of the plurality of second display elements and the other one of the plurality of second display elements to each other.

公开(公告)号：US20220254849A1

公开(公告)日：2022-08-11

申请号：US17384860

申请日：2021-07-26

Applicant: Samsung Display Co., Ltd.

Inventor： Wangwoo Lee ,  Sungho Kim ,  Seokje Seong ,  Jinsung An ,  Minwoo Woo ,  Jiseon Lee ,  Yoonjong Cho

IPC: H01L27/32 ,  H01L51/52

Abstract: A display panel includes: a substrate including a first area, a second area, and a third area, first display elements in the first area, and second display elements in the second area; first pixel circuits in the first area and respectively connected to the first display elements; second pixel circuits in the third area and respectively connected to the second display elements; a first organic insulating layer covering the first pixel circuits; and connection wirings respectively connecting the second pixel circuits to the second display elements, wherein the connection wirings include a first connection wiring and a second connection wiring, the first connection wiring being disposed on the first organic insulating layer, and the second connection wiring being disposed under the first organic insulating layer.

公开(公告)号：US20210074740A1

公开(公告)日：2021-03-11

申请号：US17099629

申请日：2020-11-16

Applicant: Samsung Display Co., Ltd.

Inventor： Youngin Hwang ,  Elly Gil ,  Sungho Kim ,  Eungtaek Kim ,  Yongho Yang ,  Seongmin Wang ,  Jina Lee ,  Joohyeon Jo ,  Seongbaik Chu

IPC: H01L27/12 ,  H01L27/32 ,  G09G3/3225

Abstract: A display device includes: a first electrode layer; a semiconductor layer including a source region, a drain region, and a channel region, wherein at least a portion of the source region or the drain region overlaps the first electrode layer; a second electrode layer arranged adjacent to the channel region; a third electrode layer overlapping the second electrode layer and at least a portion of the source region or the drain region; and a power line electrically connected to the first electrode layer and the third electrode layer.