公开(公告)号：US12040318B2

公开(公告)日：2024-07-16

申请号：US17297346

申请日：2019-02-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Hyun Deok Im

IPC: H01L23/00 ,  H01L25/16 ,  H01L33/24 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L24/24 ,  H01L24/82 ,  H01L33/24 ,  H01L33/38 ,  H01L33/62 ,  H01L2224/24147 ,  H01L2224/24991 ,  H01L2224/82007 ,  H01L2224/82101

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels provided on the display area, and each including sub-pixels each including an emission area and a non-emission area. Each sub-pixel may include a pixel circuit layer including at least one transistor, and a display element layer including at least one light emitting element configured to emit light and connected to the transistor. The display element layer may include: a first electrode and a second electrode spaced apart from each other with the light emitting element interposed therebetween; the light emitting element connected between the first and second electrodes; and a planarization layer provided on the pixel circuit layer, and coming into contact with at least a portion of each of opposite ends of the light emitting element. The planarization layer may overlap with each of the first electrode and the second electrode.

公开(公告)号：US12027508B2

公开(公告)日：2024-07-02

申请号：US17278114

申请日：2019-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Je Won Yoo ,  Dae Hyun Kim ,  Bek Hyun Lim ,  Myeong Hee Kim ,  Chang Il Tae ,  Hyun Min Cho ,  Keun Kyu Song ,  Jin Oh Kwag

IPC: H01L33/44 ,  H01L23/00 ,  H01L25/16 ,  H01L33/54 ,  H01L33/24

CPC classification number: H01L25/167 ,  H01L24/95 ,  H01L33/44 ,  H01L33/54 ,  H01L33/24 ,  H01L2224/95102 ,  H01L2224/95134 ,  H01L2933/005

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels disposed on the display area, and each including sub-pixels, each sub-pixel including a pixel circuit layer, and a display element layer including a light emitting element. The display element layer includes first and second electrodes spaced apart from each other; a first insulating layer disposed between the pixel circuit layer and the light emitting element; and a second insulating layer disposed on the light emitting element and filling spaces between the first insulating layer and ends of the light emitting element. The light emitting element includes a first conductive semiconductor layer, an active layer enclosing at least one side of the first conductive semiconductor layer, a second conductive semiconductor layer enclosing the active layer, an electrode layer enclosing the second conductive semiconductor layer, and an insulating film covering the electrode layer.

公开(公告)号：US11942567B2

公开(公告)日：2024-03-26

申请号：US17377266

申请日：2021-07-15

Applicant: Samsung Display Co. Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Seung A Lee ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L33/30

CPC classification number: H01L33/0093 ,  H01L33/0066 ,  H01L33/30

Abstract: Provided is a method of manufacturing a light-emitting element, the method including positioning a substrate, forming a first separation layer, which includes a first sacrificial layer, an etching control layer on the first sacrificial layer, and a second sacrificial layer on the etching control layer, on the substrate, forming at least one first light-emitting element on the first separation layer, and separating the first light-emitting element from the substrate.

公开(公告)号：US11889730B2

公开(公告)日：2024-01-30

申请号：US17732797

申请日：2022-04-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyeong Su Ko ,  Joon Yong Park ,  Gyung Min Baek ,  Hyun Min Cho ,  Dae Won Choi

IPC: H10K59/13 ,  H10K59/131 ,  H10K50/81 ,  H10K50/82 ,  H10K71/00 ,  H10K59/12 ,  H10K102/10

CPC classification number: H10K59/131 ,  H10K50/81 ,  H10K50/82 ,  H10K71/00 ,  H10K59/1201 ,  H10K2102/103

Abstract: An organic light emitting diode display including: a substrate; a TFT on the substrate; a planarization layer on the TFT; a pixel electrode on the planarization layer, wherein the pixel electrode includes upper and lower layers including a transparent conductive oxide and an intermediate layer including silver; an etch stop layer on the pixel electrode, wherein an upper surface of the pixel electrode is exposed by the etch stop layer; a partition on the etch stop layer, wherein the upper surface of the pixel electrode is exposed by the partition; an organic emission layer on the upper surface of the pixel electrode where the upper surface of the pixel electrode is exposed by the etch stop layer and the partition; and a common electrode on the organic emission layer and the partition, wherein the etch stop layer covers an edge and a side surface of the pixel electrode.

公开(公告)号：US11830966B2

公开(公告)日：2023-11-28

申请号：US17195428

申请日：2021-03-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Min Cho

IPC: H01L33/52 ,  H01L25/075 ,  H01L33/38 ,  H01L33/48 ,  H01L33/56 ,  H01L33/58 ,  H01L25/16 ,  H01L27/12 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62

CPC classification number: H01L33/52 ,  H01L25/0753 ,  H01L33/382 ,  H01L33/385 ,  H01L33/387 ,  H01L33/48 ,  H01L33/483 ,  H01L33/486 ,  H01L33/56 ,  H01L33/58 ,  H01L25/167 ,  H01L27/1214 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62 ,  H01L2933/005 ,  H01L2933/0033 ,  H01L2933/0091

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US11783764B2

公开(公告)日：2023-10-10

申请号：US17977580

申请日：2022-10-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yo Han Lee ,  Su Mi Moon ,  Hyun Min Cho

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2310/027 ,  G09G2310/0243 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2330/00

Abstract: A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.

公开(公告)号：US11744120B2

公开(公告)日：2023-08-29

申请号：US17212046

申请日：2021-03-25

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min Cho ,  Tae Sung Kim ,  Yun Jong Yeo ,  Ji Youn Nam ,  Hee Min Yoo

IPC: H01L27/32 ,  H01L51/56 ,  H10K59/124 ,  H10K59/122 ,  H10K59/123 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/124 ,  H10K59/122 ,  H10K59/123 ,  H10K71/00 ,  H10K59/1201

Abstract: A manufacturing method of a display device includes: forming a transistor on a substrate; forming an organic insulating layer on the transistor; and performing a plasma treatment on the organic insulating layer. The organic insulating layer includes an acryl-based polymer, and the plasma treatment is performed by using helium gas or argon gas.

公开(公告)号：US11610934B2

公开(公告)日：2023-03-21

申请号：US17395999

申请日：2021-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Deok Im

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/40 ,  F21K9/68 ,  H01L25/075 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US11552279B2

公开(公告)日：2023-01-10

申请号：US16900294

申请日：2020-06-12

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Sung Kim ,  Hyun Min Cho ,  Yun Jong Yeo

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: A display device includes: a first substrate; a barrier layer on the first substrate; an optical pattern layer on the barrier layer, and including a light blocking pattern, and a plurality of light transmitting patterns penetrating the light blocking pattern in a first direction; a first thin film transistor layer on the optical pattern layer; a light emitting element layer on the first thin film transistor layer; and a fingerprint sensor layer underneath the first substrate to receive light reflected from an external object.

公开(公告)号：US11502144B2

公开(公告)日：2022-11-15

申请号：US16838956

申请日：2020-04-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Tae Wook Kang ,  Tae Sung Kim ,  Dae Won Choi ,  Sang Gab Kim

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a first base, a pixel electrode on the first base, a pixel defining layer having an opening that at least partially exposes the pixel electrode, a light emitting layer on the pixel electrode, an auxiliary electrode on the same layer as the pixel electrode, a partition wall on the auxiliary electrode that at least partially exposes a side surface of the auxiliary electrode, an organic layer on the partition wall, and a common electrode continuously arranged on the light emitting layer and the organic layer, wherein a side surface of the partition wall has a reverse-tapered shape, and the common electrode contacts the side surface of the auxiliary electrode.