公开(公告)号：US11870025B2

公开(公告)日：2024-01-09

申请号：US17839200

申请日：2022-06-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Taek Kim ,  Seung Min Lee ,  Jung Hwan Yi ,  Hee Keun Lee ,  Bek Hyun Lim ,  Kyung Tae Chae

IPC: H01L33/62 ,  H01L25/075 ,  H01L27/12 ,  H01L29/786 ,  G09G3/32

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L27/1259 ,  H01L29/78633 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/08 ,  G09G2310/0267 ,  H01L2933/0066

Abstract: A display device includes a first substrate, a wire pad in a pad area, first banks in a display area, electrodes on the first banks, a pad electrode base layer on the wire pad, having a greater width than the wire pad, and covering sides of the wire pad, a first insulating layer covering parts of the electrodes and part of the pad electrode base layer, light-emitting elements on the first insulating layer in the display area, respective ends of the light-emitting elements being on different electrodes, contact electrodes on the electrodes and contacting first ends of the light-emitting elements, and a pad electrode upper layer on the first insulating layer in the pad area and directly contacting the pad electrode base layer, wherein the pad electrode base layer includes the same material as the electrodes, and the pad electrode upper layer includes the same material as the contact electrodes.

公开(公告)号：US11594171B2

公开(公告)日：2023-02-28

申请号：US17277264

申请日：2019-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Sin Chul Kang ,  Won Sik Oh ,  Yo Han Lee ,  Hee Keun Lee ,  Hyun Min Cho

IPC: G09G3/32 ,  H01L25/075 ,  H01L33/00 ,  H01L33/62

Abstract: A method for manufacturing a display device including a substrate including a display area and a non-display area located outside the display area, the display area including pixel areas, is provided. First switching elements are formed in the pixel areas, respectively, and a circuit element layer that includes reference voltage wire in the non-display area and electrically connected to the first switching elements is formed. Pixel electrodes that include first pixel electrodes in the pixel areas on the circuit element layer, respectively, and electrically connected through the first switching elements to the reference voltage wire, and second pixel electrodes facing the first pixel electrodes, are formed. A plurality of light emitting elements are arranged between the first pixel electrodes and the second pixel electrodes. A first source voltage is applied to the reference voltage wire and a second source voltage is applied to the second pixel electrodes.

公开(公告)号：US10747047B2

公开(公告)日：2020-08-18

申请号：US16247379

申请日：2019-01-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Keun Lee ,  Won Tae Kim ,  Yeo Geon Yoon ,  Seung Jin Chu

IPC: G02F1/1335 ,  H01L27/32

Abstract: A display device includes: a light provider; a wavelength conversion layer above the light provider and including a first surface and sides; and a capping layer on the wavelength conversion layer and including a first area provided on the sides of the wavelength conversion layer and a second area provided on the first surface of the wavelength conversion layer, and the first area of the capping layer includes cracks.

公开(公告)号：US12289975B2

公开(公告)日：2025-04-29

申请号：US17624673

申请日：2020-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Jin Kong ,  Hyun Min Cho ,  Dae Hyun Kim ,  Su Mi Moon ,  Xinxing Li ,  Hee Keun Lee

IPC: H01L27/32 ,  H10K50/854 ,  H10K59/122 ,  H10K59/35 ,  H10K59/38 ,  H10K102/10

Abstract: A display device may include a first sub-pixel including a first light emitting element disposed in a first sub-pixel area of a substrate, a second sub-pixel including a second light emitting element disposed in a second sub-pixel area located in a first direction with respect to the first sub-pixel area of the substrate, a bank layer disposed between the first and second sub-pixels, a first color filter pattern disposed on the first sub-pixel and the bank layer, and a second color filter pattern disposed on the second sub-pixel and the bank layer. The first light emitting element may emit light having a first color. The second light emitting element may emit light having a second color. The first color filter pattern and the second color filter pattern may at least partially overlap each other on the bank layer.

公开(公告)号：US12125834B2

公开(公告)日：2024-10-22

申请号：US17377268

申请日：2021-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bek Hyun Lim ,  Jung-Hwan Yi ,  Hee Keun Lee

IPC: H01L29/18 ,  H01L23/00 ,  H01L25/16 ,  H01L33/00 ,  H01L27/12 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L24/95 ,  H01L27/124 ,  H01L33/62 ,  H01L2224/95102 ,  H01L2224/95145 ,  H01L2924/12041

Abstract: A display device includes a first substrate; a first conductive pattern, a first voltage line and a second voltage line on the first substrate; an insulating layer on the first conductive pattern and the second voltage line; a plurality of first light-emitting elements on the insulating layer; a first electrode on the insulating layer and connected to the first conductive pattern, the first electrode overlapping the first voltage line; and a second electrode on the insulating layer and connected to the second voltage line, wherein the plurality of first light-emitting elements are in contact with the first electrode and the second electrode, and wherein a part of an upper surface of the first electrode that overlaps the first conductive pattern and a part of the upper surface of the first electrode that overlaps the first voltage line are located on the same plane.

公开(公告)号：US12046701B2

公开(公告)日：2024-07-23

申请号：US17347286

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Eun A Yang ,  Han Su Kim ,  Jong Hyuk Kang ,  Hee Keun Lee

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

CPC classification number: H01L33/38 ,  H01L27/156 ,  H01L33/44

Abstract: A display device includes a substrate and a pixel on the substrate. The pixel has an alignment area, and the alignment area has a first alignment area, a second alignment area spaced apart from the first alignment area in a first direction, and a non-alignment area extending around a periphery of the alignment area. The pixel includes: a first electrode and a second electrode extending in the first direction across the alignment area and being spaced apart from each other; a first bank in the non-alignment area and extending along a boundary of the pixel; an alignment control layer including a first alignment control pattern, the first alignment control pattern being spaced apart from the first bank in the non-alignment area between the first alignment area and the second alignment area; and a first light emitting element between the first electrode and the second electrode in the first alignment area.

公开(公告)号：US12046626B2

公开(公告)日：2024-07-23

申请号：US17281856

申请日：2019-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Keun Lee ,  Tae Jin Kong ,  Veidhes Basrur ,  Xinxing Li ,  Chang Il Tae

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L33/005 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0016

Abstract: A display device may include a substrate including a display area and a non-display area, and pixels provided on the display area. Each pixel includes sub-pixels each including an emission area and a non-emission area. Each of the sub-pixels may include a display element layer including at least one light emitting element that emits light. The display element layer may include a first electrode and a second electrode spaced apart from each other with the light emitting element disposed therebetween, connection lines including a first connection line extending in a row direction of the substrate and electrically connected to the first electrode, and a second connection line extending parallel to the first connection line and connected to the second electrode. Two connection lines having a symmetric structure may be disposed in an area between two sub-pixels adjacent to each other in a column direction of the substrate.

公开(公告)号：US12046586B2

公开(公告)日：2024-07-23

申请号：US17269737

申请日：2019-02-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Jin Kong ,  Dae Hyun Kim ,  Myeong Hee Kim ,  Veidhes Basrur ,  Je Won Yoo ,  Xinxing Li ,  Hee Keun Lee ,  Bek Hyun Lim ,  Hyun Min Cho ,  Chang Il Tae

IPC: H01L25/075 ,  B82B3/00 ,  H01L27/12 ,  H01L33/00 ,  H01L33/24 ,  H01L33/36 ,  H01L33/44 ,  H01L33/62 ,  G09G3/32

CPC classification number: H01L25/0753 ,  B82B3/0052 ,  H01L27/1214 ,  H01L33/0062 ,  H01L33/24 ,  H01L33/36 ,  H01L33/44 ,  H01L33/62 ,  G09G3/32 ,  G09G2300/0842 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light emitting device includes first and second electrodes disposed on a substrate; an insulating layer disposed on the substrate and including a groove extending in a first direction intersecting with the first and the second electrodes, and first and second contact portions that expose areas of the first and the second electrodes; light emitting elements disposed in the groove between the first and the second electrodes, each including first and second ends electrically connected to the first and second electrodes, respectively; a first contact electrode electrically connected to the light emitting elements on the first ends, and electrically connected to the first electrode on the first contact portion; and a second contact electrode electrically connected to the light emitting elements on the second ends, and electrically connected to the second electrode on the second contact portion.

公开(公告)号：US12002790B2

公开(公告)日：2024-06-04

申请号：US17210282

申请日：2021-03-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hee Keun Lee ,  Jin Taek Kim ,  Seung Min Lee ,  Jung Hwan Yi ,  Baek Hyeon Lim ,  Kyung Tae Chae

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62

Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.

公开(公告)号：US11871598B2

公开(公告)日：2024-01-09

申请号：US17315847

申请日：2021-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： Baek Hyeon Lim ,  Jin Taek Kim ,  Seung Min Lee ,  Jung Hwan Yi ,  Hee Keun Lee ,  Kyung Tae Chae

IPC: H10K50/813 ,  H01L33/50 ,  H10K50/822 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00

CPC classification number: H10K50/813 ,  H01L33/50 ,  H10K50/822 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00

Abstract: A display device and a manufacturing method thereof are provided. A display device includes: a substrate; a first electrode and a second electrode on the substrate, the first electrode and the second electrode being arranged on a same layer to be spaced apart from each other; a first insulating layer on the first electrode and the second electrode; and a light emitting element on the first insulating layer. The first insulating layer includes a groove concave toward the substrate, and the light emitting element is in the groove.