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：US20250089475A1

公开(公告)日：2025-03-13

申请号：US18635753

申请日：2024-04-15

Applicant: Samsung Display Co., LTD.

Inventor： Geun Chul PARK ,  So Young KOO ,  Jong Do KEUM ,  Eok Su KIM ,  Hyung Jun KIM ,  Joon Seok PARK ,  Ae Ran SONG

IPC: H10K59/124 ,  H01L27/12 ,  H10K59/12

Abstract: A display device includes a substrate, a first transistor including a first active layer disposed on the substrate and a first gate electrode disposed on the first active layer, and a first gate insulating layer disposed between the first active layer and the first gate electrode. The first active layer includes an oxide semiconductor containing indium (In) at a content range of about 40 at % to about 54 at %, and the first gate insulating layer has an emission amount range of oxygen (O2) of about 2.48E+19 Molec./cm3 to about 2.76E+19 Molec./cm3, or an emission amount range of nitrogen monoxide (NO) of about 1.04E+20 Molec./cm3 to about 1.15E+20 Molec./cm3 under heat treatment conditions performed at a temperature range of about 50° C. to about 550° C.

公开(公告)号：US20200343275A1

公开(公告)日：2020-10-29

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: H01L27/12

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：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.

公开(公告)号：US20240251638A1

公开(公告)日：2024-07-25

申请号：US18538365

申请日：2023-12-13

Applicant: Samsung Display Co., LTD.

Inventor： Chul Won PARK ,  So Young KOO ,  Myoung Hwa KIM ,  Geun Chul PARK ,  Joon Seok PARK ,  Hye Lim CHOI

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/80522 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/873

Abstract: A display device includes: a substrate; a plurality of pixel electrodes that are disposed above the substrate; a first insulating layer that has a first opening and is disposed on a pixel electrode of the plurality of pixel electrodes; an auxiliary electrode that is disposed on the first insulating layer; an intermediate layer that is disposed on the pixel electrode and includes a light-emitting layer disposed within the first opening; a common electrode that is disposed on the intermediate layer; and a first encapsulating layer that is disposed above the common electrode. An end portion of the common electrode contacts a side surface of the auxiliary electrode and is electrically connected to the side surface of the auxiliary electrode, and an end portion of the first encapsulating layer is disposed at the side surface of the auxiliary electrode and is disposed lower than an upper surface of the auxiliary electrode.

公开(公告)号：US20240145655A1

公开(公告)日：2024-05-02

申请号：US18241999

申请日：2023-09-05

Applicant: Samsung Display Co., Ltd.

Inventor： Joon Seok PARK ,  So Young KOO ,  Hyung Jun KIM ,  Geun Chul PARK

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/1255 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device is disclosed that includes: a substrate; a first conductive layer disposed on the substrate; a first insulating layer positioned on the first conductive layer and having an undercut structure forming an opening; a first capacitor electrode including a portion formed in the undercut structure; a second capacitor electrode including a portion formed in the undercut structure and overlapping the second capacitor electrode to form a capacitor; and a second insulating layer including a portion formed in the undercut structure and positioned between the first capacitor electrode and the second capacitor electrode to function as a dielectric of the capacitor.

公开(公告)号：US20210056898A1

公开(公告)日：2021-02-25

申请号：US16850775

申请日：2020-04-16

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: G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A display device includes a pixel including a light emitting element connected to a scan line and a data line; a driving transistor that 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 semiconductor layer, and a first gate electrode disposed on the first semiconductor layer. The display device includes a switching transistor that applies the data voltage to the driving transistor according to a scan signal applied to the scan line. The switching transistor includes a second semiconductor layer, and a second gate electrode disposed on the second semiconductor layer. The display device includes a light blocking layer and a first buffer layer disposed at a lower portion of the driving transistor. The light blocking layer and the first buffer layer do not overlap the switching transistor.

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.