公开(公告)号：US11436979B2

公开(公告)日：2022-09-06

申请号：US16505708

申请日：2019-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Hwan Kim ,  Sang Moo Choi ,  Dae Hyun Kim ,  Soo Hee Oh ,  Dong Sun Lee

IPC: G09G3/3266

Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.

公开(公告)号：US11120739B2

公开(公告)日：2021-09-14

申请号：US17013516

申请日：2020-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Dae Hyun Kim ,  Sung Chul Kim ,  Hye Yong Chu ,  Keun Kyu Song

IPC: H01L33/38 ,  G09G3/3225 ,  H01L33/20 ,  G06F3/042 ,  H01L33/32 ,  G06F3/041 ,  H01L33/00

Abstract: A display device including a substrate and a plurality of pixels in a display region of the substrate. Each of the pixels includes first and second sub-pixels, and each of the first and second sub-pixels has a light emitting region for emitting light. The first sub-pixel includes a first light emitting element in the light emitting region and configured to emit visible light. The second sub-pixel includes a second light emitting element in the light emitting region and configured to emit infrared light and a light receiving element configured to receive the infrared light emitted from the second light emitting element to detect a user's touch. The second light emitting element and the light receiving element in the second sub-pixel are electrically insulated from and optically coupled to each other to form a photo-coupler.

公开(公告)号：US20210193885A1

公开(公告)日：2021-06-24

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 ,  H01L33/56 ,  H01L33/48 ,  H01L33/38 ,  H01L25/075 ,  H01L33/58

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：US10944029B2

公开(公告)日：2021-03-09

申请号：US16805880

申请日：2020-03-02

Applicant: Samsung Display Co., Ltd.

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

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

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：US10269865B2

公开(公告)日：2019-04-23

申请号：US16018054

申请日：2018-06-26

Applicant: Samsung Display Co., Ltd.

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

IPC: H01J1/62 ,  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：US12300766B2

公开(公告)日：2025-05-13

申请号：US17614724

申请日：2020-05-20

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Won Hee Nam ,  Ki Sun Jang ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L27/15

Abstract: A display device includes at least one pixel; at least one electrode spaced apart from each other in each of the at least one pixel; and at least one light-emitting element disposed between the at least one electrode, wherein the at least one electrode include at least one inner electrode disposed adjacent to the center of each of the at least one pixel; and at least one outer electrode spaced apart from each of the at least one inner electrode, a distance between the central portion of the at least one pixel and the at least one outer electrode is greater than a distance between the central portion of the at least one pixel and the inner electrode, and a width of the at least one inner electrode is different from a width of the at least one outer electrode.

公开(公告)号：US12176462B2

公开(公告)日：2024-12-24

申请号：US17411793

申请日：2021-08-25

Applicant: Samsung Display Co., LTD.

Inventor： Ock Soo Son ,  Dae Hyun Kim

IPC: H01L33/38 ,  H01L27/15

Abstract: A pixel may include first and second electrodes that are spaced apart from each other in a first direction, the first and second electrodes each extending in a second direction intersecting the first direction; and light emitting elements disposed between the first and second electrodes. The first electrode may include at least one (1-1)th electrode extending in a third direction inclined with respect to one of the first and second directions, and at least one (1-2)th electrode extending in a fourth direction intersecting the third direction. The second electrode may include at least one (2-1)th electrode extending in the third direction and at least one (2-2)th electrode extending in the fourth direction.

公开(公告)号：US12074171B2

公开(公告)日：2024-08-27

申请号：US17422426

申请日：2019-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik Oh ,  Yo Han Lee ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dae Hyun Kim

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

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L24/24 ,  H01L24/95 ,  H01L33/62 ,  H01L2224/24147 ,  H01L2224/95145 ,  H01L2924/12041

Abstract: A display device may include a pixel disposed in a display area. The pixel may include: a first electrode extending in a first direction; a second electrode including a first electrode part spaced apart from the first electrode in a direction intersecting with the first direction and extending in the first direction, a second electrode part extending from the first electrode part in a second direction, and a third electrode part extending form the second electrode part in the first direction; a third electrode including at least one area spaced apart from the third electrode part in the direction intersecting with the first direction and extending in the first direction; a first light emitting element connected between the first electrode and the second electrode; and a second light emitting element connected between the second electrode and the third electrode.

公开(公告)号：US12046625B2

公开(公告)日：2024-07-23

申请号：US17265799

申请日：2019-01-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Dong Uk Kim ,  Dong Eon Lee ,  Seung A Lee ,  Hyung Rae Cha

IPC: H01L33/12 ,  H01L27/15 ,  H01L33/00 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40

CPC classification number: H01L27/156 ,  H01L33/0095 ,  H01L33/12 ,  H01L33/22 ,  H01L33/38 ,  H01L33/40

Abstract: Provided are a light-emitting element, a manufacturing method thereof, and a display device comprising the light-emitting element. The method for manufacturing the light-emitting element comprises the steps of: preparing a lower substrate including a substrate and a buffer material layer formed on the substrate, forming a separating layer disposed on the lower substrate and including at least one graphene layer, forming an element deposition structure by depositing a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, forming an element rod by etching the element deposition structure and the separating layer in a vertical direction; and separating the element rod from the lower substrate to form a light emitting element.

公开(公告)号：US11983350B2

公开(公告)日：2024-05-14

申请号：US17255987

申请日：2018-09-21

Applicant: Samsung Display Co., LTD.

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

IPC: H01L25/075 ,  G06F3/01 ,  G06F3/041 ,  G06F3/04883 ,  H01L27/12 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62 ,  B82Y20/00

CPC classification number: G06F3/0414 ,  G06F3/016 ,  G06F3/0412 ,  G06F3/04883 ,  H01L25/0753 ,  H01L27/1214 ,  H01L33/502 ,  H01L33/505 ,  H01L33/58 ,  H01L33/62 ,  B82Y20/00 ,  G06F2203/014 ,  H01L2933/0066

Abstract: A display device comprises first and second pixels, a light-emitting layer, color conversion layers, and color filter layers, the light-emitting layer comprising first and second light-emitting elements in the first and second pixels, wherein the color conversion layers comprise first and second color conversion layers in the first and second pixels, the color filter layers comprise first and second color filter layers in the first and second pixels, the first and second light-emitting elements emit first light having a central wavelength range of a first wavelength, the first and second color conversion layers contain color conversion particles converting the first light into second light having a central wavelength range of a second wavelength longer than the first wavelength, the first color filter layer transmits the first light and blocks the second light, and the second color filter layer transmits the second light and blocks transmission of the first light.