公开(公告)号：US11211588B2

公开(公告)日：2021-12-28

申请号：US16689627

申请日：2019-11-20

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim ,  Wooram Youn ,  Minki Kim

IPC: H01L51/52 ,  H01L27/32

Abstract: An electroluminescent display device includes: a substrate, a first subpixel on the substrate, a second subpixel on the substrate, a third subpixel on the substrate, a respective first electrode in each of the first to third subpixels, an emission layer on the first electrodes, a common second electrode on the emission layer, an encapsulation layer including: a first encapsulation layer on the second electrode, and a second encapsulation layer on the first encapsulation layer, and a first semi-transmissive layer between the first encapsulation layer and the second encapsulation layer, the first semi-transmissive layer overlapping the first electrode of the first subpixel.

公开(公告)号：US11011724B2

公开(公告)日：2021-05-18

申请号：US16453150

申请日：2019-06-26

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim ,  Hansun Park

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: Disclosed is a display apparatus. The display apparatus includes a substrate including a first subpixel, a second subpixel, and a third subpixel. A bottom electrode is on the substrate. A light emitting layer is on the bottom electrode, and a top electrode is on the light emitting layer. Each of the first subpixel, the second subpixel, and the third subpixel includes a first mode pixel having a first viewing angle and a second mode pixel having a second viewing angle that is less than the first viewing angle.

公开(公告)号：US10790473B2

公开(公告)日：2020-09-29

申请号：US16223668

申请日：2018-12-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Jiyeon Park ,  Hansun Park ,  Hyungseok Bang ,  Hyeongjun Lim

IPC: H01L51/52 ,  G02B27/01 ,  H01L27/32 ,  H01L51/56 ,  G02B5/28 ,  G02B5/20

Abstract: The disclosure relates to a high-aperture-ratio microdisplay with a microcavity structure. The microdisplay comprises a substrate, unit pixels, driving elements, and organic light-emitting diodes. The organic light-emitting diodes each comprise: an anode, an organic emission layer, and a cathode. The anode is formed by sequentially stacking a reflecting electrode, a first dielectric layer, a second dielectric layer, and a transparent electrode. The organic emission layer is stacked over the anode. The cathode is stacked over the organic emission layer. The first dielectric layer and the second dielectric layer have contact portion that open at least one corner of the reflecting electrode. The anode is connected to the reflecting electrode through the contact portions.

公开(公告)号：US20200185650A1

公开(公告)日：2020-06-11

申请号：US16689627

申请日：2019-11-20

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim ,  Wooram Youn ,  Minki Kim

IPC: H01L51/52 ,  H01L27/32

Abstract: An electroluminescent display device includes: a substrate, a first subpixel on the substrate, a second subpixel on the substrate, a third subpixel on the substrate, a respective first electrode in each of the first to third subpixels, an emission layer on the first electrodes, a common second electrode on the emission layer, an encapsulation layer including: a first encapsulation layer on the second electrode, and a second encapsulation layer on the first encapsulation layer, and a first semi-transmissive layer between the first encapsulation layer and the second encapsulation layer, the first semi-transmissive layer overlapping the first electrode of the first subpixel.

公开(公告)号：US20240224695A1

公开(公告)日：2024-07-04

申请号：US18479972

申请日：2023-10-03

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim

IPC: H10K59/38 ,  H10K59/122 ,  H10K59/80

CPC classification number: H10K59/38 ,  H10K59/122 ,  H10K59/873 ,  H10K59/877 ,  H10K59/879 ,  H10K59/8792 ,  H10K2102/351

Abstract: Discussed is a light emitting display device that can include a substrate including a pixel; a driving element layer including a thin film transistor disposed in the pixel; a light emitting element layer disposed in the pixel on the driving element layer, and connected to the thin film transistor; an encapsulation layer on the light emitting element layer; a color filter having a lens shape and disposed on the encapsulation layer at the pixel, wherein an empty space is located at a side of the color filter; and a transparent layer on the color filter.

公开(公告)号：US12029092B2

公开(公告)日：2024-07-02

申请号：US17559142

申请日：2021-12-22

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim

IPC: H10K59/35 ,  H10K50/818

CPC classification number: H10K59/353 ,  H10K50/818

Abstract: Discussed is a display apparatus including a substrate having a plurality of subpixels, an insulating layer provided on the substrate, a first electrode provided on the insulating layer, a light emitting layer provided on the insulating layer and the first electrode, and a second electrode provided on the light emitting layer. The substrate can include a left portion including one edge, a right portion including another edge, and a central portion interposed between the left portion and the right portion. Further, a first fence and a second fence are provided on the insulating layer between adjacent subpixels, a gap is inside the light emitting layer between adjacent subpixels, a trench is provided in the insulating layer between the first fence and the second fence, and the gap overlaps the trench.

公开(公告)号：US11183669B2

公开(公告)日：2021-11-23

申请号：US16435723

申请日：2019-06-10

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim ,  JiYeon Park ,  Taemin Kim

IPC: H01L51/52 ,  G06F1/16 ,  H01L27/32 ,  H01L51/56

Abstract: A display apparatus is provided. The display apparatus includes a substrate including a plurality of pixels configured to emit light, wherein the amount of emitted light is at a maximum when emitted at an angle of more than 0 degrees. The display apparatus further includes an encapsulation layer covering the plurality of pixels and including a plurality of light collecting structures each having a three-dimensional quadrangular horn shape or a three-dimensional quadrangular truncated-horn shape.

公开(公告)号：US20190198816A1

公开(公告)日：2019-06-27

申请号：US16223668

申请日：2018-12-18

Applicant: LG Display Co., Ltd.

Inventor： Jiyeon PARK ,  Hansun Park ,  Hyungseok Bang ,  Hyeongjun Lim

IPC: H01L51/52 ,  G02B27/01 ,  H01L27/32 ,  H01L51/56

Abstract: The disclosure relates to a high-aperture-ratio microdisplay with a microcavity structure. The microdisplay comprises a substrate, unit pixels, driving elements, and organic light-emitting diodes. The organic light-emitting diodes each comprise: an anode, an organic emission layer, and a cathode. The anode is formed by sequentially stacking a reflecting electrode, a first dielectric layer, a second dielectric layer, and a transparent electrode. The organic emission layer is stacked over the anode. The cathode is stacked over the organic emission layer. The first dielectric layer and the second dielectric layer have contact portion that open at least one corner of the reflecting electrode. The anode is connected to the reflecting electrode through the contact portions.

公开(公告)号：US11522028B2

公开(公告)日：2022-12-06

申请号：US16942368

申请日：2020-07-29

Applicant: LG Display Co., Ltd.

Inventor： Hyeongjun Lim ,  Ho-Jin Kim

IPC: H01L29/205 ,  H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: A display device and a method for manufacturing a display device are disclosed. The display device may prevent a leakage current from occurring between adjacent pixels. The display device comprises a substrate, a first electrode provided in each of a first subpixel and a second subpixel arranged to be adjacent to the first subpixel, on the substrate, a trench provided between the first subpixel and the second subpixel, a light emitting layer provided in each of the first subpixel and the second subpixel on the first electrode, a second electrode provided in each of the first subpixel and the second subpixel on the light emitting layer, and a third electrode electrically connecting the second electrode provided in the first subpixel with the second electrode provided in the second subpixel. The second electrode is disconnected between the first subpixel and the second subpixel by the trench.

公开(公告)号：US20220208880A1

公开(公告)日：2022-06-30

申请号：US17545725

申请日：2021-12-08

Applicant: LG Display Co., Ltd.

Inventor： Ho-Jin Kim ,  Hansun Park ,  Hyeongjun Lim

IPC: H01L27/32 ,  H01L51/52

Abstract: An electroluminescent display apparatus includes a substrate including a display area and a non-display area outside the display area, a first electrode provided in each of a plurality of subpixels in the display area of the substrate, a connection electrode provided in the non-display area of the substrate, a bank covering both ends of the first electrode and covering a top surface of the connection electrode, a light emitting layer provided on the first electrode and the bank in the display area and the non-display area, and a second electrode provided on the light emitting layer, wherein, a trench is provided in the bank in the non-display area, one side surface of the connection electrode is exposed at an inner portion of the trench, and the second electrode extends to the inner portion of the trench and contacts the one side surface of the connection electrode.