公开(公告)号：US20240188335A1

公开(公告)日：2024-06-06

申请号：US18356445

申请日：2023-07-21

Applicant: Samsung Display Co., LTD.

Inventor： Chul Won PARK ,  Myoung Hwa KIM ,  Geun Chul PARK ,  Jun Hyung LIM ,  Hye Lim CHOI

IPC: H10K59/122 ,  H10K59/12 ,  H10K71/20

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K71/231 ,  H10K2102/351

Abstract: A display device and a manufacturing method of the display device are provided. The display device includes a substrate, a passivation layer disposed on the substrate, a metal oxide layer disposed on the passivation layer, a via layer disposed on the metal oxide layer, a first electrode disposed on the via layer, a pixel defining layer covering the metal oxide layer and an edge portion of the first electrode and dividing a light-emitting area, an organic layer disposed on the first electrode and the pixel defining layer, and a second electrode disposed on the organic layer, wherein a side of the pixel defining layer protrudes more outward than a side of the metal oxide layer, and at least a portion of the organic layer is disconnected at a point between the side of the pixel defining layer and the passivation layer.

公开(公告)号：US20210020110A1

公开(公告)日：2021-01-21

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

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：US20230299089A1

公开(公告)日：2023-09-21

申请号：US18324949

申请日：2023-05-26

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L27/12

CPC classification number: H01L27/1237 ,  H01L27/1255 ,  H01L27/1259 ,  H01L27/124 ,  H01L27/1225

Abstract: A display device includes: a substrate; a first active layer of a first transistor and a second active layer of a second transistor on the substrate; a first gate insulating layer on the first active layer; a first gate electrode on the first gate insulating layer; a second gate insulating layer on the second active layer; and a second gate electrode on the second gate insulating layer, wherein a hydrogen concentration of the first gate insulating layer is lower than a hydrogen concentration of the second gate insulating layer.

公开(公告)号：US20210111197A1

公开(公告)日：2021-04-15

申请号：US16906948

申请日：2020-06-19

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/12

Abstract: A display device includes: a substrate; a first active layer of a first transistor and a second active layer of a second transistor on the substrate; a first gate insulating layer on the first active layer; a first gate electrode on the first gate insulating layer; a second gate insulating layer on the second active layer; and a second gate electrode on the second gate insulating layer, wherein a hydrogen concentration of the first gate insulating layer is lower than a hydrogen concentration of the second gate insulating layer.

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：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：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：US20220085071A1

公开(公告)日：2022-03-17

申请号：US17232211

申请日：2021-04-16

Applicant: Samsung Display Co., LTD. ,  Industry-University Cooperation Foundation Hanyang University ERICA Campus

Inventor： Hye Lim CHOI ,  Saeroonter OH ,  Kihwan KIM ,  Joon Seok PARK ,  Ji Hwan LEE ,  Jun Hyung LIM

IPC: H01L27/12

Abstract: An embodiment of the present invention provides a display device including a substrate and a transistor on the substrate. The transistor includes: a lower layer having conductivity and including a body portion and a plurality of protrusions; an oxide semiconductor layer including a channel region, a first conductive region disposed at a first side of the channel region, and a second conductive region disposed at a second side of the channel region, where the second side is opposite the first side; a gate electrode overlapping the channel region in a plan view; a first electrode electrically connected to the first conductive region; and a second electrode electrically connected to the second conductive region. The plurality of protrusions protrudes from the body portion, and the body portion overlaps the channel region in the plan view.

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.