公开(公告)号：US20220367768A1

公开(公告)日：2022-11-17

申请号：US17695665

申请日：2022-03-15

Applicant: Samsung Display Co., LTD.

Inventor： Sung Geun BAE ,  Jang Soon PARK ,  Jeong Hyun LEE ,  Hyun Wook LEE ,  Da Sol JEONG ,  Won Hyeong HEO

IPC: H01L33/60 ,  H01L25/16 ,  H01L27/12 ,  H01L23/00

Abstract: According to some embodiments of the present disclosure, a display device includes a substrate, a first electrode and a second electrode on the substrate, and spaced apart from each other, a light emitting element between the first electrode and the second electrode, a first bank pattern and a second bank pattern protruding in a display direction of the display device, a first contact electrode and a second contact electrode electrically connecting the light emitting element to the first electrode and the second electrode, respectively, the first contact electrode including a first contact light-transmitting layer, and a first reflective electrode including a first reflective layer, and a first light-transmitting layer including a same material as the first contact light-transmitting layer, at least a portion of the first reflective electrode being on the first bank pattern.

公开(公告)号：US20220328726A1

公开(公告)日：2022-10-13

申请号：US17699426

申请日：2022-03-21

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan LEE ,  Cheol Ku KANG ,  Hyun KIM ,  Jeong Su PARK ,  Myeong Hun SONG ,  Hyun Wook LEE

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/00

Abstract: A manufacturing method of a display device and a display device are provided. A manufacturing method of a display device includes: preparing a substrate including a light emitting area and a non-light emitting area; arranging a first electrode, a second electrode, a first uncut electrode, and a second uncut electrode on the substrate; forming a bank in the non-light emitting area of the substrate; arranging a light emitting element in the light emitting area of the substrate; removing at least a portion of each of the first uncut electrode and the second uncut electrode; arranging a first contact electrode electrically connecting the light emitting element and the first electrode; and arranging a second contact electrode electrically connecting the light emitting element and the second electrode, and the at least the portion of each of the first uncut electrode and the second uncut electrode is removed within an open area.

公开(公告)号：US20220254970A1

公开(公告)日：2022-08-11

申请号：US17528529

申请日：2021-11-17

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Myeong Hun SONG ,  Jong Chan LEE ,  Sung Won JO

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/38 ,  H01L23/00 ,  H01L33/40

Abstract: A display device includes a first electrode and a second electrode disposed on a substrate, the first and second electrodes extending in a first direction in parallel to each other, a first insulating layer disposed on the first and second electrodes, light-emitting elements disposed on the first insulating layer, the light-emitting elements including first end portions disposed on the first electrode and second end portions disposed on the second electrode, an oxide semiconductor layer disposed on the first insulating layer and the light-emitting elements, the oxide semiconductor layer including a first conductive portion electrically contacting the first end portions of the light-emitting elements, a second conductive portion electrically contacting the second end portions of the light-emitting elements, and a semiconductive portions disposed between the first and second conductive portions, and a second insulating layer disposed on the oxide semiconductor layer.

公开(公告)号：US20220199682A1

公开(公告)日：2022-06-23

申请号：US17644763

申请日：2021-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook LEE ,  Seung Min LEE ,  Tae Woo KIM ,  Kyung Tae CHAE ,  Jung Eun HONG

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/50 ,  H01L33/24 ,  H01L33/44

Abstract: Display device includes a first substrate; an active material layer on the first substrate and including a channel area, a first doped area on one side of the channel area, and a second doped area on another side of the channel area; a gate insulating layer on the active material layer; a first conductive layer on the gate insulating layer and including a gate electrode overlapping the channel area and a signal application electrode; a second conductive layer including a first electrode electrically connected to the first doped area, a second electrode electrically connected to the second doped area, and a third electrode electrically connected to the signal application electrode; a light emitting element; and a third conductive layer on the light emitting element, the third conductive layer including a first contact electrode electrically connected to the second electrode, and a second contact electrode electrically connected to the third electrode.

公开(公告)号：US20220149255A1

公开(公告)日：2022-05-12

申请号：US17357128

申请日：2021-06-24

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  No Kyung PARK ,  Ki Nyeng KANG ,  Sung Won JO

IPC: H01L33/62 ,  H01L27/15 ,  H01L33/44 ,  H01L33/38 ,  G09G3/32

Abstract: A display device includes a base layer, a first pixel electrode disposed in a first direction on the base layer and to which a first driving voltage is applied, a second pixel electrode disposed in the first direction on the base layer and to which a second driving voltage is applied, a first light-emitting element and a second light-emitting element electrically connected to the first pixel electrode and the second pixel electrode, a connection electrode electrically connecting the first pixel electrode and the first light-emitting element, and electrically connecting the second light-emitting element and the second pixel electrode, and a bank overlapping at least a portion of the first pixel electrode and at least a portion of the second pixel electrode and surrounding a light-emitting area in which the first light-emitting element and the second light-emitting element are disposed. A portion of the connection electrode overlaps the bank.

公开(公告)号：US20220093679A1

公开(公告)日：2022-03-24

申请号：US17356346

申请日：2021-06-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Won JO ,  Hyun Wook LEE ,  Su Min CHOI

IPC: H01L27/15 ,  H01L33/12 ,  H01L33/38

Abstract: A display device includes a display area, a non-display area, and an open area between the display area and the non-display area. The display device includes a substrate; a transistor on the substrate, a back gate electrode, wherein at least a portion of the back gate electrode overlaps the transistor and at least another portion of the back gate electrode overlaps the open area, a passivation layer on the transistor, and including an opening that overlaps the open area, and a cover layer overlapping the back gate electrode in the open area.

公开(公告)号：US20210359167A1

公开(公告)日：2021-11-18

申请号：US17156253

申请日：2021-01-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook LEE ,  Ki Bum KIM ,  Jin Taek KIM ,  Seung Min LEE ,  Kwang Taek HONG ,  Jung Eun HONG

IPC: H01L33/38 ,  H01L27/15

Abstract: A pixel includes a first electrode; a second electrode surrounding at least a portion of the first electrode; a plurality of light emitting elements between the first electrode and the second electrode; a first contact electrode on the first electrode, the first contact electrode electrically connecting the first electrode and the plurality of light emitting elements; a second contact electrode on the second electrode, the second contact electrode electrically connecting the second electrode and the plurality of light emitting elements; and an intermediate electrode on the first electrode and the second electrode, the intermediate electrode comprising a first area overlapping the first electrode and a second area overlapping the second electrode, the first area and the second area being integrally connected to each other.

公开(公告)号：US20210318623A1

公开(公告)日：2021-10-14

申请号：US17355089

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook LEE ,  Soon Wook Hong ,  Seung Rae Kim ,  Jae-Hyun Park ,  Min cheol Chae

IPC: G03F7/20 ,  G03F9/00

Abstract: A method of manufacturing a display device including: preparing a substrate having a display area and a non-display area; and forming an alignment mark disposed in the non-display area of the substrate. The alignment mark includes a quadrangular-shaped center portion and a plurality of measurement portions that surround the center portion, the plurality of measurement portions including four or more measurement portions, and each of the measurement portions including sides that are parallel with two sides of the quadrangular-shaped center portion.

公开(公告)号：US20210242381A1

公开(公告)日：2021-08-05

申请号：US17153694

申请日：2021-01-20

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L33/62 ,  H01L23/00 ,  H01L25/075

Abstract: A display device includes a substrate; a first electrode and a second electrode on the substrate and spaced from each other at a first distance along a first direction; a third electrode and a fourth electrode on the first electrode and the second electrode, respectively, and spaced from each other at a second distance along the first direction; a first insulating layer on the third electrode and the fourth electrode; and a light emitting element located on the first insulating layer and between the third electrode and the fourth electrode in a plan view, and the second distance is greater than the first distance.