公开(公告)号：US20230317882A1

公开(公告)日：2023-10-05

申请号：US17979071

申请日：2022-11-02

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Jin Taek KIM ,  Hyun KIM ,  Jeong Su PARK ,  Woong Hee JEONG ,  Jung Eun HONG

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/40 ,  H01L33/00 ,  H01L25/075

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L33/40 ,  H01L2933/0066 ,  H01L25/0753 ,  H01L2933/0016 ,  H01L33/005

Abstract: A display device includes, first and second electrodes on a substrate, a buffer layer covering the first and second electrodes, a light emitting element between the first and second electrodes a first contact electrode on the first electrode electrically contacting an end of the light emitting element, and a second contact electrode on the second electrode electrically contacting another end of the light emitting element, and an active layer on the buffer layer, and a first connection electrode electrically contacting at least one side of the active material layer the first and second contact electrodes, and the active material layer are on a same layer, and a thickness of the first electrode and a thickness of the second electrode is greater than about 800 nm.

公开(公告)号：US20230253412A1

公开(公告)日：2023-08-10

申请号：US17955813

申请日：2022-09-29

Applicant: Samsung Display Co., LTD.

Inventor： Jeong Su PARK ,  Jin Taek KIM ,  Hyun KIM ,  Sung Jin LEE ,  Jong Chan LEE ,  Woong Hee JEONG ,  Jung Eun HONG

IPC: H01L27/12 ,  H01L25/16 ,  H01L33/38 ,  H01L23/00

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L27/1288 ,  H01L33/38 ,  H01L24/03 ,  H01L24/05 ,  H01L24/06 ,  H01L27/1248 ,  H01L2933/0016 ,  H01L2224/05022 ,  H01L2224/05018 ,  H01L2224/05082 ,  H01L2224/05083 ,  H01L2224/0518 ,  H01L2224/05124 ,  H01L2224/05171 ,  H01L2224/05144 ,  H01L2224/05166 ,  H01L2224/05155 ,  H01L2224/05138 ,  H01L2924/0106 ,  H01L2224/05147 ,  H01L2224/05686 ,  H01L2924/0549 ,  H01L2224/05573 ,  H01L2224/05558 ,  H01L2224/05624 ,  H01L2224/05553 ,  H01L2224/0603 ,  H01L2224/05566 ,  H01L2224/0362 ,  H01L2224/03019

Abstract: A display device includes a substrate including a display area and a pad area; a first conductive layer including a first pad electrode in the pad area; and a second conductive layer the second conductive layer includes a second pad electrode on the first pad electrode in the pad area; the first pad electrode and the second pad electrode overlap in a first direction that is a thickness direction, and do not overlap in a second direction perpendicular to the first direction.

公开(公告)号：US20230246134A1

公开(公告)日：2023-08-03

申请号：US17926242

申请日：2020-08-11

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Hyun KIM ,  Sung Jin LEE ,  Jeong Hyun LEE ,  Tae Hee LEE ,  Seung Jin CHU

IPC: H01L33/38 ,  H01L33/62 ,  H01L25/075 ,  H01L33/20

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L25/0753 ,  H01L33/20

Abstract: The display device includes: a substrate; a first electrode and a second electrode that are disposed on the substrate and spaced apart from each other; a first insulating layer disposed between the first electrode and the second electrode and covering the first electrode and the second electrode; and a light emitting element disposed on the first insulating layer and extending in a first direction. The light emitting element includes: a first side extending in the first direction; a second side opposite to the first side; a first lateral side connecting first end portions of the first and second sides; and a second lateral side connecting second end portions of the first and second sides. Each of a first interior angle and a second interior angle, which are formed by the first side and the first and second lateral sides, is an acute angle.

公开(公告)号：US20230207738A1

公开(公告)日：2023-06-29

申请号：US17984121

申请日：2022-11-09

Applicant: Samsung Display Co., LTD.

Inventor： Eun A YANG ,  Han Su KIM ,  Jong Chan LEE

IPC: H01L33/38 ,  H01L33/62 ,  H01L25/075

CPC classification number: H01L33/387 ,  H01L33/62 ,  H01L25/0753

Abstract: A display device includes: a plurality of pixels having emission areas; a first and second electrode and a second electrode in an emission area; a bank layer extending around the emission areas and having a plurality of trench portions between adjacent ones of the emission areas; a plurality of light emitting elements on the first and second electrodes; a first and second connection electrode on the first electrode and the second electrode, respectively, and in contact with at least one of the light emitting elements. Ones of the trench portions are spaced apart from each other in the first direction and are a partially depressed top surface of the bank layer, and each of the trench portions has a maximum width that is smaller than a length of the light emitting element.

公开(公告)号：US20230187428A1

公开(公告)日：2023-06-15

申请号：US17960876

申请日：2022-10-06

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Jin Taek KIM ,  Hyun KIM ,  Jeong Su PARK ,  Woong Hee JEONG ,  Jung Eun HONG

IPC: H01L25/16 ,  H01L33/48 ,  H01L33/38

CPC classification number: H01L25/167 ,  H01L33/483 ,  H01L33/38 ,  H01L2933/0033 ,  H01L2933/0016

Abstract: A display device may include a plurality of pixels each including an emission area and a non-emission area. Each of the plurality of pixels may include a via layer on a substrate and including an organic layer, a first alignment electrode and a second alignment electrode on the via layer in the emission area and spaced apart from each other, a first insulating layer on the first and second alignment electrodes of the emission area and including a lyophilic organic material, a first bank pattern and a second bank pattern on the first insulating layer of the emission area and spaced apart from each other, a first bank in the non-emission area and including a liquid repellent organic material, and a light emitting element on the first insulating layer in the emission area.

公开(公告)号：US20230154937A1

公开(公告)日：2023-05-18

申请号：US17877524

申请日：2022-07-29

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Jin Taek KIM ,  Hyun KIM ,  Jeong Su PARK ,  Woong Hee JEONG ,  Jung Eun HONG

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00

CPC classification number: H01L27/1248 ,  H01L25/167 ,  H01L27/1259 ,  H01L24/24 ,  H01L24/25 ,  H01L33/325

Abstract: A display device includes: a substrate having an emission area and a non-emission area; a first bank in the non-emission area of the substrate and having an opening; electrodes on the first bank and spaced apart from each other; a second bank on the electrodes; and light emitting elements on the second bank between the electrodes. The second bank has a first area overlapping the light emitting elements and a second area in the opening in the first bank.

公开(公告)号：US20230133550A1

公开(公告)日：2023-05-04

申请号：US17854584

申请日：2022-06-30

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Jung Eun HONG ,  Jin Taek KIM ,  Hyun KIM ,  Jeong Su PARK ,  Woong Hee JEONG

IPC: H01L27/32 ,  H01L51/56

Abstract: A method for fabricating a thin film transistor comprises disposing a semiconductor layer including a channel area, and a first and second electrode areas, disposing a gate insulating layer covering the semiconductor layer, disposing a diffusion barrier layer covering the gate insulating layer, disposing first and second electrode holes corresponding to the first and second electrode areas, and disposing a gate electrode overlapping the channel area, first and second electrodes electrically connected to the first and second electrode areas through the first and second electrode holes. The disposing of the first electrode hole, and the second electrode hole includes patterning the diffusion layer with a patterning mask disposed on the diffusion barrier layer. The disposing of the gate electrode and the first and second electrodes may include disposing a conductive material layer covering the diffusion barrier layer, and patterning the conductive material layer.

公开(公告)号：US20220392948A1

公开(公告)日：2022-12-08

申请号：US17691451

申请日：2022-03-10

Applicant: Samsung Display Co., LTD.

Inventor： Sung Jin LEE ,  Jong Chan LEE ,  Hyun Wook LEE

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/24 ,  H01L33/44 ,  H01L33/00

Abstract: A display device includes a first alignment electrode and a second alignment electrode spaced apart from each other and disposed on a substrate, light emitting elements disposed between the first alignment electrode and the second alignment electrode, and an amorphous silicon layer disposed on the light emitting elements. The amorphous silicon layer includes an electrode portion disposed on a first end portion and a second end portion of each of the light emitting elements, and an insulating portion.

公开(公告)号：US20220359790A1

公开(公告)日：2022-11-10

申请号：US17676045

申请日：2022-02-18

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Basrur VEIDHES ,  Jong Chan LEE ,  Sung Won JO ,  Jung Eun HONG

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A display device includes a conductive layer including a voltage line and a conductive pattern on the substrate, a via layer on the conductive layer and including a plurality of contact holes exposing a portion of the conductive layer, a first electrode and a second electrode spaced from each other on the via layer, a first insulating layer on the first electrode and the second electrode and including a plurality of openings exposing the contact holes, light emitting elements on the first electrode and the second electrode on the first insulating layer, and a first connection electrode on the first electrode and in contact with the light emitting element, and a second connection electrode on the second electrode and in contact with the light emitting element, wherein the first connection electrode is in direct contact with the conductive pattern through a first opening exposing a first contact hole.

公开(公告)号：US20220262877A1

公开(公告)日：2022-08-18

申请号：US17500462

申请日：2021-10-13

Applicant: Samsung Display Co., LTD.

Inventor： No Kyung PARK ,  Hyun KIM ,  Do Yeong PARK ,  Jeong Su PARK ,  Myeong Hun SONG ,  Jeong Kook WANG ,  Jong Chan LEE

IPC: H01L27/32

Abstract: A display device includes a first electrode and a second electrode extending in a first direction and spaced apart from each other in a second direction, a first insulating layer disposed on the first electrode and the second electrode, a bank layer disposed on the first insulating layer and comprising an outer bank part extending in the first direction and the second direction and inner bank parts extending in the first direction in an area surrounded by the outer bank part, a second insulating layer disposed on the inner bank parts and the first insulating layer, and light emitting elements disposed on the second insulating layer between the inner bank parts, wherein each of the inner bank parts is connected to a part of the outer bank part extending in the second direction.