公开(公告)号：US20220238075A1

公开(公告)日：2022-07-28

申请号：US17393298

申请日：2021-08-03

Applicant: Samsung Display Co., Ltd.

Inventor： Myoung Hwa KIM ,  Masataka Kano ,  Yeon Keon Moon ,  Joon Seok Park ,  Jun Hyung Lim ,  Hye Lim Choi

IPC: G09G3/3291 ,  G09G3/3266 ,  H01L51/56 ,  H01L51/52

Abstract: A display device including: a pixel connected to a scan line and a data line intersecting the scan line. The pixel includes a light emitting element and a driving transistor which controls a driving current supplied to the light emitting element according to a data voltage applied from the data line. The driving transistor includes a first active layer including an oxide semiconductor doped with a metal.

公开(公告)号：US20210328102A1

公开(公告)日：2021-10-21

申请号：US17171451

申请日：2021-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Joon Seok PARK ,  Myoung Hwa KIM ,  Tae Sang KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Jun Hyung LIM ,  Hye Lim CHOI

IPC: H01L33/12 ,  H01L27/15 ,  H01L33/56 ,  H01L33/62 ,  H01L33/00

Abstract: A display device may include a first gate electrode on a substrate, a buffer layer on the first gate electrode, a first active pattern on the buffer layer, overlapping the first gate electrode, and including an oxide semiconductor, a source pattern and a drain pattern respectively on ends of the first active pattern, an insulation layer overlapping the source pattern and the drain pattern on the buffer layer, an oxygen supply pattern on the insulation layer, overlapping the first active pattern, and supplying oxygen to the first active pattern, a second active pattern on the insulation layer and spaced apart from the oxygen supply pattern, the second active pattern including a channel region, and a source region and a drain region, an insulation pattern on the channel region of the second active pattern, and a second gate electrode on the insulation pattern.

公开(公告)号：US20210305354A1

公开(公告)日：2021-09-30

申请号：US17344860

申请日：2021-06-10

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoung Seok SON ,  Myoung Hwa KIM ,  Jay Bum KIM ,  Seung Jun LEE ,  Seung Hun LEE ,  Jun Hyung LIM

IPC: H01L27/32 ,  G09G3/3258 ,  G09G3/3291 ,  H01L51/52 ,  H01L51/56

Abstract: A display device includes a substrate and a pixel disposed on the substrate. The pixel includes a first transistor, a second transistor electrically connected to the first transistor, a third transistor electrically connected to the first transistor, and a light-emitting diode element electrically connected to at least one of the first transistor and the third transistor. The first transistor includes a first semiconductor member and a first gate electrode. The first semiconductor member includes an oxide semiconductor material. The first gate electrode is disposed between the first semiconductor member and the substrate. The second transistor includes a second semiconductor member and a second gate electrode. The second semiconductor member includes the oxide semiconductor material. The second semiconductor member is disposed between the second gate electrode and the substrate. The third transistor includes a third semiconductor member including silicon.

公开(公告)号：US20210036029A1

公开(公告)日：2021-02-04

申请号：US16876984

申请日：2020-05-18

Applicant: Samsung Display Co., LTD.

Inventor： Joon Seok PARK ,  Myoung Hwa KIM ,  Tae Sang KIM ,  Hyung Jun KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Sang Woo SOHN ,  Jun Hyung LIM ,  Kyung Jin JEON ,  Hye Lim CHOI

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1362

Abstract: A display device includes a substrate, a buffer layer disposed on the substrate, a first semiconductor layer disposed on the buffer layer and including an oxide semiconductor and a first active layer, a first gate insulating layer disposed on the first semiconductor layer and the buffer layer, a second semiconductor layer disposed on the first gate insulating layer and including an oxide semiconductor, a second active layer, and a first oxide layer on the first active layer, a second gate insulating layer disposed on the second semiconductor layer, a first conductive layer disposed on the second gate insulating layer, an insulating layer disposed on the first conductive layer, a second conductive layer disposed on the insulating layer, a passivation layer disposed on the second conductive layer, and a third conductive layer disposed on the first passivation layer.

公开(公告)号：US20210036028A1

公开(公告)日：2021-02-04

申请号：US16836651

申请日：2020-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Myoung Hwa KIM ,  Joon Seok PARK ,  So Young KOO ,  Tae Sang KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Jun Hyung LIM ,  Kyung Jin JEON

IPC: H01L27/12 ,  H01L29/24 ,  H01L29/786 ,  H01L29/66

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 applied 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 that is applied to the scan line. The driving transistor includes a first active layer including an oxide semiconductor, and a first oxide layer disposed on the first active layer and including an oxide semiconductor. The first switching transistor includes a second active layer including an oxide semiconductor, and the first oxide layer is not disposed on the second active layer.

公开(公告)号：US20210020717A1

公开(公告)日：2021-01-21

申请号：US16843764

申请日：2020-04-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyung Jun KIM ,  Myoung Hwa KIM ,  Tae Sang KIM ,  Yeon Keon MOON ,  Joon Seok PARK ,  Sang Woo SOHN ,  Sang Won SHIN ,  Jun Hyung LIM ,  Hye Lim CHOI

IPC: H01L27/32 ,  H01L29/786 ,  H01L29/24 ,  H01L29/66 ,  H01L21/02 ,  H01L21/4763 ,  H01L21/465 ,  H01L21/4757

Abstract: A display device and a method for fabricating the same are provided. The display device comprises pixels connected to scan lines, and to data lines crossing the scan lines, each of the pixels including 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 the data line, the first transistor including a first active layer having an oxide semiconductor, and a first oxide layer on the first active layer and having a crystalline oxide containing tin (Sn).

公开(公告)号：US20240121983A1

公开(公告)日：2024-04-11

申请号：US18368461

申请日：2023-09-14

Applicant: Samsung Display Co., LTD.

Inventor： So Young KOO ,  Myoung Hwa KIM ,  Eok Su KIM ,  Hyung Jun Kim

IPC: H10K59/121 ,  H10K59/12 ,  H10K59/126 ,  H10K59/131

CPC classification number: H10K59/1213 ,  H10K59/1201 ,  H10K59/1216 ,  H10K59/126 ,  H10K59/131

Abstract: A thin film transistor includes a substrate; an active layer including a channel area, a first conductive area, and a second conductive area; a gate insulating layer on a portion of the active layer; a first through hole penetrating through a portion of the first conductive area; a second through hole penetrating through a portion of the second conductive area; a gate electrode overlapping the channel area of the active layer; a first electrode electrically connected to the first conductive area; and a second electrode electrically connected to the second conductive area. One side of the first electrode adjacent to the first through hole is parallel to the one side of the first through hole, the first electrode including protrusion parts at both ends thereof and a groove part concavely recessed from the gate electrode.

公开(公告)号：US20230255077A1

公开(公告)日：2023-08-10

申请号：US18135550

申请日：2023-04-17

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoung Seok SON ,  Myoung Hwa KIM ,  Jay Bum KIM ,  Seung Jun LEE ,  Seung Hun LEE ,  Jun Hyung LIM

IPC: H10K59/131 ,  G09G3/3258 ,  G09G3/3291 ,  H10K50/80 ,  H10K59/124 ,  H10K71/00

CPC classification number: H10K59/1315 ,  G09G3/3258 ,  G09G3/3291 ,  H10K50/80 ,  H10K59/124 ,  H10K71/00 ,  H10K59/1201

Abstract: A display device includes a substrate and a pixel disposed on the substrate. The pixel includes a first transistor, a second transistor electrically connected to the first transistor, a third transistor electrically connected to the first transistor, and a light-emitting diode element electrically connected to at least one of the first transistor and the third transistor. The first transistor includes a first semiconductor member and a first gate electrode. The first semiconductor member includes an oxide semiconductor material. The first gate electrode is disposed between the first semiconductor member and the substrate. The second transistor includes a second semiconductor member and a second gate electrode. The second semiconductor member includes the oxide semiconductor material. The second semiconductor member is disposed between the second gate electrode and the substrate. The third transistor includes a third semiconductor member including silicon.

公开(公告)号：US20210327983A1

公开(公告)日：2021-10-21

申请号：US16952762

申请日：2020-11-19

Applicant: Samsung Display Co., LTD.

Inventor： Myoung Hwa KIM ,  Joon Seok PARK ,  Tae Sang KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Sang Woo SOHN ,  Jun Hyung LIM ,  Hye Lim CHOI

IPC: H01L27/32

Abstract: A display device is provided. The display device includes a substrate, a first active layer of a first transistor and a second active layer of a second transistor which are disposed on the substrate, a first gate insulating layer disposed on the first active layer, an oxide layer disposed on the first gate insulating layer and including an oxide semiconductor, a first gate electrode disposed on the oxide layer, a second gate insulating layer disposed on the first gate electrode and the second active layer, and a second gate electrode which overlaps the second active layer in a thickness direction of the substrate and is disposed on the second gate insulating layer, where the oxide layer overlaps the first active layer and does not overlap the second active layer in the thickness direction.

公开(公告)号：US20210020872A1

公开(公告)日：2021-01-21

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 ,  G09G3/325 ,  H01L29/786 ,  H01L29/49 ,  G09G3/3291

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.