公开(公告)号：US12069918B2

公开(公告)日：2024-08-20

申请号：US18230281

申请日：2023-08-04

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Jin Jeon ,  So Young Koo ,  Eok Su Kim ,  Hyung Jun Kim ,  Jun Hyung Lim

IPC: H01L27/32 ,  H10K59/122 ,  H10K59/131 ,  H10K59/12

CPC classification number: H10K59/131 ,  H10K59/122 ,  H10K59/1201

Abstract: A display device includes a substrate, a first conductive layer on the substrate and including a lower light blocking pattern and a first signal line, a buffer layer on the first conductive layer, a semiconductor layer on the buffer layer and including a first semiconductor pattern and a second semiconductor pattern separated from the first semiconductor pattern, an insulating layer on the semiconductor layer and including an insulating layer pattern, a second conductive layer on the insulating layer and including a second signal line, a planarization layer on the second conductive layer, and a third conductive layer on the planarization layer and including an anode electrode. The first semiconductor pattern is electrically connected to the lower light blocking pattern by the anode electrode, and at least a portion of the second semiconductor pattern is isolated from and overlaps each of the first signal line and the second signal line.

公开(公告)号：US12068336B2

公开(公告)日：2024-08-20

申请号：US17469217

申请日：2021-09-08

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Jin Jeon ,  So Young Koo ,  Eok Su Kim ,  Hyung Jun Kim ,  Yun Yong Nam ,  Jun Hyung Lim

IPC: H01L27/12 ,  G02F1/1362 ,  H01L25/16

CPC classification number: H01L27/1288 ,  G02F1/136227 ,  H01L25/167 ,  H01L27/124 ,  H01L27/1248

Abstract: A display device and a method of manufacturing a display device are provided. The display device includes a first conductive layer on a substrate, a passivation layer disposed on the first conductive layer and exposing at least a part of the first conductive layer, a second conductive layer disposed on the passivation layer and covering an upper surface of the passivation layer, a via layer on the second conductive layer, a third conductive layer including a first electrode, a second electrode, and a connection pattern, and spaced apart from each other on the via layer, and a light emitting element having ends that are disposed on the first electrode and the second electrode, respectively. The connection pattern electrically connects the first conductive layer and the second conductive layer through a first contact hole penetrating the via layer.

公开(公告)号：US11751439B2

公开(公告)日：2023-09-05

申请号：US17220966

申请日：2021-04-02

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Jun Kim ,  So Young Koo ,  Eok Su Kim ,  Yun Yong Nam ,  Jun Hyung Lim ,  Kyung Jin Jeon

IPC: H10K59/124 ,  H10K59/126 ,  H10K59/131 ,  H10K59/121 ,  H10K71/00 ,  H01L27/12 ,  H01L29/786 ,  H10K59/12

CPC classification number: H10K59/124 ,  H10K59/126 ,  H10K59/1213 ,  H10K59/131 ,  H10K71/00 ,  H01L27/124 ,  H01L27/1225 ,  H01L27/1248 ,  H01L29/7869 ,  H01L29/78633 ,  H10K59/1201

Abstract: A display device includes: a substrate; a first semiconductor layer disposed on the substrate, where the first semiconductor layer includes a channel region and a doped region; a first gate electrode disposed to overlap the channel region of the first semiconductor layer; an intermediate film disposed on the first semiconductor layer and the first gate electrode; and a first electrode disposed on the intermediate film, where an opening is defined through the intermediate film to overlap the doped region of the first semiconductor layer, the doped region of the first semiconductor layer and the first electrode contacts each other through the opening, and an area of a cross-section of the opening parallel to the substrate is in a range of about 49 μm2 to about 81 μm2.

公开(公告)号：US11521552B2

公开(公告)日：2022-12-06

申请号：US16846195

申请日：2020-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Joon Seok Park ,  So Young Koo ,  Myoung Hwa Kim ,  Eok Su Kim ,  Tae Sang Kim ,  Hyung Jun Kim ,  Yeon Keon Moon ,  Geun Chul Park ,  Jun Hyung Lim ,  Kyung Jin Jeon ,  Hye Lim Choi

IPC: H01L29/78 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3291 ,  H01L29/786 ,  H01L29/49 ,  H01L27/32

Abstract: A display device, includes: a pixel connected to a scan line and a data line crossing the scan line, wherein the pixel includes a light emitting element, a driving transistor configured to control a driving current supplied to the light emitting element according to a data voltage received from the data line, and a first switching transistor configured to apply the data voltage of the data line to the driving transistor according to a scan signal applied to the scan line; wherein the driving transistor includes a first active layer including an oxide semiconductor and a first oxide layer on the first active layer and including an oxide semiconductor; and wherein the first switching transistor includes a second active layer on the first active layer and including the same oxide semiconductor as the first oxide layer.

公开(公告)号：US11581517B2

公开(公告)日：2023-02-14

申请号：US16837540

申请日：2020-04-01

Applicant: Samsung Display Co., Ltd.

Inventor： Joon Seok Park ,  Yeon Keon Moon ,  Myoung Hwa Kim ,  Tae Sang Kim ,  Hyung Jun Kim ,  Geun Chul Park ,  Sang Woo Sohn ,  Jun Hyung Lim ,  Kyung Jin Jeon ,  Hye Lim Choi

IPC: H01L51/56 ,  G09G3/3266 ,  G09G3/3291 ,  H01L29/786 ,  H01L29/49 ,  G09G3/325

Abstract: A display device includes pixels connected to scan lines and data lines intersecting the scan lines, wherein each of the pixels includes a light-emitting element, a driving transistor to control a driving current supplied to the light-emitting element according to a data voltage applied from the data lines, and a switching transistor to apply the data voltage of the data line to the driving transistor according to a scan signal applied from the scan lines. The driving transistor includes a first active layer having an oxide semiconductor and a first gate electrode below the first active layer. The switching transistor includes a second active layer having a same oxide semiconductor as the oxide semiconductor of the first active layer and a second gate electrode below the second active layer. At least one of the driving transistor and the switching transistor includes an oxide layer above each of the active layers.

公开(公告)号：US11335273B2

公开(公告)日：2022-05-17

申请号：US16849575

申请日：2020-04-15

Applicant: Samsung Display Co., LTD.

Inventor： Hye Lim Choi ,  Yeon Keon Moon ,  Joon Seok Park ,  Myoung Hwa Kim ,  Tae Sang Kim ,  Hyung Jun Kim ,  Geun Chui Park ,  Kyung Jin Jeon

IPC: G09G3/32 ,  G09G3/3291 ,  H01L27/32 ,  G09G3/3266

Abstract: A display device includes pixels connected to scan lines and data lines intersecting the scan lines, wherein each of the pixels includes a light emitting element and a first transistor configured to control a driving current supplied to the light emitting element according to a data voltage applied from a respective data line of the data lines, the first transistor includes a first active layer including an oxide semiconductor containing indium (In), and a content of the indium in the oxide semiconductor of the first active layer is 70 at % or more.

公开(公告)号：US11195861B2

公开(公告)日：2021-12-07

申请号：US16818310

申请日：2020-03-13

Applicant: Samsung Display Co., LTD.

Inventor： Geun Chul Park ,  Joon Seok Park ,  Tae Sang Kim ,  Yeon Keon Moon ,  Jun Hyung Lim ,  Kyung Jin Jeon

IPC: H01L27/00 ,  H01L29/00 ,  H01L27/12

Abstract: A display device and a method of manufacturing the same. The display device includes a pixel connected to a scan line and a data line intersecting the scan line, and a driving transistor and a switching transistor disposed in the pixel. The driving transistor includes a substrate, a first active layer disposed on the substrate, a first gate electrode disposed on the first active layer, and a second insulating film contacting the first gate electrode and the first gate electrode. The switching transistor includes a second active layer disposed on the substrate, a second gate electrode disposed on the second active layer, a first insulating film contacting the second active layer and the second gate electrode, and a second insulating film covering the first insulating film. The first insulating film and the second insulating film are made of different materials from each other.

公开(公告)号：US12218151B2

公开(公告)日：2025-02-04

申请号：US18480494

申请日：2023-10-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： So Young Koo ,  Jay Bum Kim ,  Kyung Jin Jeon ,  Eok Su Kim ,  Jun Hyung Lim

IPC: H01L33/62 ,  H01L27/12

Abstract: A display device according to an embodiment of the present disclosure includes: a substrate; a first conductive layer on the substrate; a first insulating layer on the first conductive layer; an active pattern on the first insulating layer and including a semiconductor material; a second insulating layer on the active pattern; and a second conductive layer on the second insulating layer, wherein the first insulating layer has a first opening exposing the first conductive layer, the second insulating layer has a second opening exposing the first conductive layer, a breadth of the first opening is different than a breadth of the second opening, and a side surface of the first opening and a side surface of the second opening are formed to a top surface of the first conductive layer.

公开(公告)号：US11824061B2

公开(公告)日：2023-11-21

申请号：US16783002

申请日：2020-02-05

Applicant: Samsung Display Co., LTD.

Inventor： Joon Seok Park ,  Tae Sang Kim ,  Yeon Keon Moon ,  Geun Chul Park ,  Jun Hyung Lim ,  Kyung Jin Jeon

IPC: H01L27/12

CPC classification number: H01L27/1225 ,  H01L27/124 ,  H01L27/127 ,  H01L27/1251

Abstract: A display device includes a plurality of pixels respectively coupled to scan lines and data lines intersecting the scan lines, wherein at least some of the pixels includes a driving transistor including a substrate, a first insulating layer disposed on the substrate, a first active layer disposed on the first insulating layer, a first gate electrode disposed on the first active layer, and a first source electrode and a first drain electrode electrically connected to the first active layer, the first drain electrode being spaced apart from the first source electrode by a first distance, and a switching transistor including a second gate electrode disposed between the substrate and the first insulating layer, a second active layer disposed on the same layer as the first active layer, and a second source electrode and a second drain electrode electrically connected to the second active layer, the second drain electrode being spaced apart from the second source electrode by a second distance different from the first distance.

公开(公告)号：US11626426B2

公开(公告)日：2023-04-11

申请号：US17109601

申请日：2020-12-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung Jin Jeon ,  So Young Koo ,  Eok Su Kim ,  Hyung Jun Kim ,  Joon Seok Park ,  Jun Hyung Lim

IPC: H01L27/14 ,  H01L27/12 ,  H01L27/32

Abstract: A display device includes: a substrate; a first conductive layer on the substrate and comprising a first signal line; an insulating layer pattern on the first conductive layer; a semiconductor pattern on the insulating layer pattern; a gate insulating layer on the semiconductor pattern; and a second conductive layer comprising a gate electrode on the gate insulting layer and a first source/drain electrode and a second source/drain electrode, each on at least a part of the semiconductor pattern, wherein the insulating layer pattern and the semiconductor pattern have a same planar shape, the semiconductor pattern comprises a channel region overlapping the gate electrode, a first source/drain region on a first side of the channel region and a second source/drain region on a second side of the channel region, and the first source/drain electrode electrically connects the first source/drain region and the first signal line.