公开(公告)号：US20230066130A1

公开(公告)日：2023-03-02

申请号：US17895768

申请日：2022-08-25

Applicant: LG Display Co., Ltd.

Inventor： MinJae KANG ,  YongSeok KWAK

IPC: H01L33/62 ,  G09G3/3233 ,  H01L25/16 ,  H01L23/00

Abstract: A display device and a method of manufacturing the display device are disclosed. A display device includes a substrate, a plurality of first lines disposed on the substrate and spaced apart from each other, a plurality of second lines disposed on the substrate and disposed between the plurality of respective first lines, a plurality of light emitting elements disposed on the plurality of first lines and the plurality of second lines, and a plurality of third lines disposed on the plurality of light emitting elements. Each of the plurality of light emitting elements includes a first semiconductor layer overlapping the plurality of first lines and electrically connected to the plurality of first lines and the plurality of second lines, a light emitting layer, a second semiconductor layer, a conductor layer in contact with the plurality of third lines, and a non-conductor layer overlapping the plurality of second lines.

公开(公告)号：US20220209072A1

公开(公告)日：2022-06-30

申请号：US17697653

申请日：2022-03-17

Applicant: LG Display Co., Ltd.

Inventor： Taeil JUNG ,  Il-Soo KIM ,  YongSeok KWAK

IPC: H01L33/38 ,  H01L33/44 ,  H01L25/16

Abstract: A light-emitting device and a display device using the same are disclosed. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.

公开(公告)号：US20230215975A1

公开(公告)日：2023-07-06

申请号：US17976538

申请日：2022-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Yuseop SHIN ,  YongSeok KWAK ,  MinJae KANG

IPC: H01L33/20 ,  H01L33/62 ,  H01L25/075

CPC classification number: H01L33/20 ,  H01L33/62 ,  H01L25/0753

Abstract: A nanorod light emitting element includes a first semiconductor layer having a rod shape, a first active layer covering a first portion of a side surface of the first semiconductor layer, the first portion extending from an upper surface of the first semiconductor layer, a second semiconductor layer covering the first active layer, a second active layer covering a second portion of the side surface, the second portion extending from a lower surface of the first semiconductor layer, and spaced apart from the first active layer, and a third semiconductor layer covering the second active layer and spaced apart from the second semiconductor layer.

公开(公告)号：US20200075823A1

公开(公告)日：2020-03-05

申请号：US16550735

申请日：2019-08-26

Applicant: LG Display Co., Ltd.

Inventor： Kiyong YANG ,  MinJae KANG ,  YongSeok KWAK ,  Myungsoo HAN ,  JaeMin SIM

IPC: H01L33/60 ,  H01L27/15 ,  H01L27/12 ,  H01L33/50

Abstract: Provided is a display device. The display device includes a substrate having a sub-pixel area. In some examples, the substrate may have or define a plurality of sub-pixel areas. A light-emitting diode (LED) and a thin-film transistor for driving the LED are disposed in the sub-pixel area. An extended light path layer is disposed on the substrate and is configured to surround the sub-pixel area. Accordingly, it is possible so as to improve the luminous efficiency of the display device.

公开(公告)号：US20190157512A1

公开(公告)日：2019-05-23

申请号：US16152711

申请日：2018-10-05

Applicant: LG Display Co., Ltd.

Inventor： Taeil JUNG ,  Il-Soo KIM ,  YongSeok KWAK

IPC: H01L33/38 ,  H01L33/44 ,  H01L25/16

Abstract: A light-emitting device and a display device using the same. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.

公开(公告)号：US20250151473A1

公开(公告)日：2025-05-08

申请号：US18821206

申请日：2024-08-30

Applicant: LG Display Co., Ltd.

Inventor： YongSeok KWAK ,  SeungJun LEE ,  Yuseop SHIN

IPC: H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L33/40 ,  H01L33/62

Abstract: A display device may include a substrate, pixels including sub-pixels, a first cover layer which is disposed on the substrate and includes an open area, a plurality of first light emitting diodes which is disposed at the sub-pixels on the first cover layer, and a second light emitting diode, which is disposed in one or more pixels among the pixels, on the substrate. A part of a lower side of the second light emitting diode may be disposed in the open area. A part of an upper side of the second light emitting diode may be disposed on the first cover layer. An area of a top surface of the second light emitting diode may be larger than an area of a bottom surface of the second light emitting diode. A repair light emitting diode is transferred only when a defect occurs, thereby reducing a process cost.

公开(公告)号：US20200279975A1

公开(公告)日：2020-09-03

申请号：US16878215

申请日：2020-05-19

Applicant: LG Display Co., Ltd.

Inventor： Taeil JUNG ,  Il-Soo KIM ,  YongSeok KWAK

IPC: H01L33/38 ,  H01L33/44 ,  H01L25/16

Abstract: A light-emitting device and a display device using the same. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.

公开(公告)号：US20200212267A1

公开(公告)日：2020-07-02

申请号：US16713463

申请日：2019-12-13

Applicant: LG Display Co., Ltd.

Inventor： YongSeok KWAK ,  Myungsoo HAN ,  Kiyong YANG ,  MinJae KANG

IPC: H01L33/50 ,  H01L25/16 ,  H01L33/24 ,  H01L33/60 ,  H01L33/00

Abstract: A display device comprises a first substrate including a plurality of pixels, a plurality of light emitting diodes (LEDs) in each of the plurality of pixels, a plurality of light conversion units on the plurality of LEDs, and a plurality of partitions configured to surround each of the plurality of light conversion units. Each of the plurality of light conversion units is in a groove inside the plurality of partitions.

公开(公告)号：US20190189679A1

公开(公告)日：2019-06-20

申请号：US16154949

申请日：2018-10-09

Applicant: LG Display Co., Ltd.

Inventor： YongSeok KWAK ,  Kiyong YANG ,  JinSu MOON ,  MyungWon SEO

IPC: H01L27/15 ,  H01L25/18 ,  H01L33/00 ,  H01L33/50

CPC classification number: H01L27/15 ,  G09G3/32 ,  G09G3/3225 ,  H01L25/0753 ,  H01L25/18 ,  H01L27/1214 ,  H01L33/007 ,  H01L33/44 ,  H01L33/508

Abstract: A light-emitting diode (LED) chip and a display device having the same are provided. A green LED is regrown on a blue LED to produce blue and green light, and a red phosphor is disposed on the blue or green LED to produce red light. Red light, green light, and blue light are to be produced using a single LED chip. The single LED chip forms three subpixels therein so as to facilitate a transfer process of the LED chip to a display panel. The LED chip is configured based on the blue, green, and blue LEDs so as to facilitate the fabrication and driving of the LED chip.