公开(公告)号：US11776448B2

公开(公告)日：2023-10-03

申请号：US16844253

申请日：2020-04-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jitsuo Ota ,  Jihoon Kang

IPC: G09G3/20 ,  G09G3/32 ,  H01L25/075 ,  H01L27/12 ,  H01L27/15 ,  H01L33/00 ,  H01L33/18 ,  H01L33/24 ,  H01L33/32 ,  H01L33/38 ,  H01L33/44

CPC classification number: G09G3/2007 ,  G09G3/32 ,  H01L25/0753 ,  H01L27/1214 ,  H01L27/15 ,  H01L33/007 ,  H01L33/18 ,  H01L33/24 ,  H01L33/32 ,  H01L33/38 ,  H01L33/44 ,  G09G2330/10 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: The disclosure relates to a light emitting diode (LED) that is capable of emitting a plurality of lights having different wavelengths from one another, and independently controlling the intensity of the plurality of emitted lights and a manufacturing method of the LED, and a display device including the LED. Specifically, an LED according to the disclosure includes a first light emitting cell including an n-type semiconductor layer, a p-type semiconductor layer, and a first light emitting layer which respectively include at least one non-planar area, the first light emitting layer emitting a light of a first wavelength, a second light emitting cell including an n-type semiconductor layer, a p-type semiconductor layer, and a second light emitting layer which respectively consist of a planar area, the second light emitting layer emitting a light of a second wavelength different from the first wavelength of the light emitted from the first light emitting layer, a common electrode commonly connected with the first light emitting cell and the second light emitting cell, and a first pixel electrode and a second pixel electrode independently connected with each of the first light emitting cell and the second light emitting cell.

公开(公告)号：US11417810B2

公开(公告)日：2022-08-16

申请号：US16916321

申请日：2020-06-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihoon Kang ,  Jitsuo Ota ,  Jenghun Suh ,  Jaephil Shim ,  Myunghee Kim

IPC: H01L33/58 ,  H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/60 ,  H01L33/62 ,  H01L33/50 ,  G02B5/28

Abstract: An LED device includes: a first semiconductor layer of a first type; a second semiconductor layer of a second type; a light emitting layer formed between the first semiconductor layer and the second semiconductor layer and configured to emit light; and a filter formed on the second semiconductor layer and configured to transmit light in the second wavelength band within the first wavelength band. The filter includes a defect layer, first refractive layers, and second refractive layers having a refractive index greater than a refractive index of the first refractive layers, the first refractive layers and the second refractive layers are formed alternately on one side and other side of the defect layer. A thickness of the defect layer is determined based on a center wavelength of the first wavelength band, a peak wavelength of the second wavelength band and a refractive index of the defect layer.

公开(公告)号：US20220246673A1

公开(公告)日：2022-08-04

申请号：US17518101

申请日：2021-11-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeunghun SUH ,  Jihoon Kang ,  Myunghee Kim

IPC: H01L27/15 ,  H01L33/10 ,  H01L33/50 ,  H01L33/00

Abstract: A display module includes a substrate, and a plurality of pixels provided on the substrate, wherein each of the plurality of pixels includes a first inorganic light emitting element including a distributed Bragg reflectors (DBR) layer, a second inorganic light emitting element including a DBR layer, a third inorganic light emitting element, a first color conversion layer provided adjacent to the first inorganic light emitting element, a second color conversion layer provided adjacent to the second inorganic light emitting element, and a first color filter provided adjacent to the first color conversion layer, a second color filter provided adjacent to the second color conversion layer, wherein a size of the first color conversion layer is larger than a size of the first inorganic light emitting element, and a size of the second color conversion layer is larger than a size of the second inorganic light emitting element.

公开(公告)号：US20220246672A1

公开(公告)日：2022-08-04

申请号：US17518092

申请日：2021-11-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jenghun Suh ,  Jihoon Kang ,  Myunghee Kim

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/56 ,  H01L33/00 ,  H01L33/10

Abstract: A display module is disclosed. The display module includes pixels provided on the substrate, one of which includes: inorganic light emitting elements configured to emit light of a same color; light dispersing layers provided on light emitting surfaces of the inorganic light emitting elements; color conversion layers provided on the light dispersing layers; and color filters provided on the color conversion layers. When viewed from above an upper surface of the substrate, the light dispersing layers are larger than the inorganic light emitting elements.

公开(公告)号：US20210043616A1

公开(公告)日：2021-02-11

申请号：US16984216

申请日：2020-08-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngki Jung ,  Jihoon Kang ,  Jinho Kim ,  Sangmin Shin

IPC: H01L25/16 ,  H01L25/075 ,  H01L23/00 ,  H01L21/66

Abstract: A display apparatus is provided. The display apparatus includes a plurality of anode pads disposed on a substrate and spaced apart from each other along a first direction; a cathode pad disposed on the substrate and spaced apart from the plurality of anode pads along a second direction that crosses the first direction; a plurality of repair anode pads disposed on the substrate, spaced apart from each other along the first direction, and spaced apart from the plurality of anode pads and the cathode pad along the second direction; and a plurality of light emitting diodes (LEDs) disposed on the substrate and spaced apart from each other along the first direction, each of the plurality of LEDs including an anode that is electrically connected to a corresponding anode pad from among the plurality of anode pads and a cathode that is electrically connected to the cathode pad.