公开(公告)号：US11139343B2

公开(公告)日：2021-10-05

申请号：US16688254

申请日：2019-11-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Eunil Cho ,  Howon Choi ,  YongBaek Lee

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

Abstract: A display device includes a substrate provided with a first subpixel and a second subpixel; a first electrode provided on the substrate, including a first sub electrode provided on the first subpixel and a second sub electrode provided on the second subpixel; a transparent electrode including a first transparent electrode provided to cover the first sub electrode and a second transparent electrode provided to cover the second sub electrode; an organic light emitting layer including a first organic light emitting layer arranged on the first transparent electrode and a second organic light emitting layer arranged on the second transparent electrode; a second electrode arranged on the organic light emitting layer; a first bank provided between the first transparent electrode and the second transparent electrode to partition the first subpixel and the second subpixel from each other; and a first color filter arranged to correspond to the first subpixel.

公开(公告)号：US11133354B2

公开(公告)日：2021-09-28

申请号：US16201648

申请日：2018-11-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Howon Choi ,  Jonggeun Yoon

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3275 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

Abstract: A light-emitting display device is provided. The light-emitting display device includes a display panel and subpixels. The subpixels are positioned in a display area of the display panel. At least one of the subpixels includes a color filter disposed between two electrode layers, and at least another one of the subpixels includes a color filter disposed on a protection layer on the two electrode layers.

公开(公告)号：US12101964B2

公开(公告)日：2024-09-24

申请号：US17541986

申请日：2021-12-03

Applicant: LG Display Co., Ltd.

Inventor： Howon Choi

IPC: H10K59/121 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/121 ,  H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K59/1201

Abstract: A display apparatus includes a substrate including an emission area and a non-emission area surrounding the emission area, a planarization layer formed on the substrate, a light emitting device disposed on the planarization layer, and including an anode electrode, and a separation layer disposed to be spaced apart from the anode electrode on the planarization layer, wherein the planarization layer is formed to overlap at least a portion of the non-emission area and includes a trench portion formed by removing at least a portion of the planarization layer, the trench portion at least partially overlaps an end of each of the anode electrode and the separation layer in the non-emission area, the light emitting device further including a light emitting layer and a cathode electrode sequentially formed on the anode electrode, and the light emitting layer and the cathode electrode are discontinuously formed in the trench portion.

公开(公告)号：US20220208902A1

公开(公告)日：2022-06-30

申请号：US17528935

申请日：2021-11-17

Applicant: LG Display Co., Ltd.

Inventor： Dohong Kim ,  Howon Choi

IPC: H01L27/32 ,  H01L51/52

Abstract: The present disclosure relates to an electroluminescence display having ultra-high resolution. The present disclosure, an electroluminescence display according to the present disclosure comprises: a first bank having a first height and a second bank having a second height less than the first height for defining an emission area on a substrate; an anode electrode disposed at the emission area; a light emitting layer disposed on the anode electrode in the emission area; a cathode electrode disposed on the light emitting layer; a first protective layer disposed on the cathode electrode; and a dummy light emitting layer disposed on the second bank. The cathode electrode is disposed on the dummy light emitting layer on the second bank excepting the first bank.

公开(公告)号：US10811624B2

公开(公告)日：2020-10-20

申请号：US16107180

申请日：2018-08-21

Applicant: LG Display Co., Ltd.

Inventor： Howon Choi ,  Joonyoung Heo

IPC: H01L51/50 ,  H01L51/00 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  H01L51/52 ,  H01L51/56

Abstract: An electroluminescent display includes a lower substrate having a display area with subpixel emission areas defined in the display area; an electrode layer on the lower substrate; a planarization layer formed on the lower substrate such that holes are formed in the planarization layer with each hole being adjacent to a respective one of the subpixel emission areas; lower electrode layer in the respective subpixel emission area; a sacrificial layer surrounding the subpixel emission area and absent at an area having the lower electrode layer; an organic emission layer on the lower electrode layer; and an upper electrode layer on the organic emission layer.

公开(公告)号：US10332940B2

公开(公告)日：2019-06-25

申请号：US15291924

申请日：2016-10-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Howon Choi ,  Suhyeon Kim ,  Hyesook Kim

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: The present disclosure provides an organic light emitting diode display device including: first to third color filter layers disposed corresponding to red, green, and blue sub-pixels, respectively; and a fourth color filter layer alternately arranged including a color layer having the same color as any one of the first to third color filter layers in a white sub-pixel in each of a plurality of pixels, and having a smaller height than the first to third color filter layers. Additional color filter layers may also be included. The display device of the present disclosure has lower reflectance and enhanced black color expression.

公开(公告)号：US12041817B2

公开(公告)日：2024-07-16

申请号：US17968451

申请日：2022-10-18

Applicant: LG DISPLAY CO., LTD.

Inventor： JongSung Kim ,  TaeHan Park ,  Howon Choi ,  Dongyoung Kim

IPC: H10K50/84 ,  H10K50/85 ,  H10K50/856 ,  H10K50/86 ,  H10K59/12 ,  H10K59/65 ,  H10K77/10 ,  G02F1/1333 ,  G02F1/1335 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K50/80 ,  H10K50/818 ,  H10K50/842 ,  H10K59/122 ,  H10K59/13 ,  H10K59/35 ,  H10K102/00

CPC classification number: H10K50/856 ,  H10K50/841 ,  H10K50/86 ,  H10K59/12 ,  H10K59/65 ,  H10K77/111 ,  G02F1/133331 ,  G02F1/133528 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K50/818 ,  H10K50/8426 ,  H10K50/868 ,  H10K59/122 ,  H10K59/13 ,  H10K59/35 ,  H10K2102/00 ,  H10K2102/311

Abstract: A display apparatus includes a display panel having a front area and a side area, a main body supporting the display panel, an auxiliary member arranged inside the main body, and a semi-transmissive mirror arranged between the auxiliary member and the front area, wherein the side area of the display panel may be arranged inside the main body to face the semi-transmissive mirror. Since an image partially emitted from the display panel may be reflected toward the front area, auxiliary members such as a camera, an illumination sensor, and a proximity sensor may be arranged inside the main body (or below a display) to embody a full screen display, whereby a user's satisfaction may be enhanced and a manufacturing process may be simplified.

公开(公告)号：US11653515B2

公开(公告)日：2023-05-16

申请号：US17079187

申请日：2020-10-23

Applicant: LG Display Co., Ltd.

Inventor： TaeHan Park ,  JongSung Kim ,  Howon Choi ,  Dongyoung Kim

IPC: H10K50/125 ,  H10K59/122 ,  H10K59/35 ,  H10K50/858 ,  H10K50/15 ,  H10K50/19 ,  H10K50/11 ,  H10K59/38 ,  H10K50/155 ,  H10K59/12 ,  H10K50/14 ,  H10K59/32 ,  H01L51/50 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/5036 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3218 ,  H01L27/3246 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5275 ,  H01L51/5278 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/506 ,  H01L51/5048

Abstract: An electroluminescent display device is disclosed. The electroluminescent display device includes a substrate having thereon a first sub pixel and a second sub pixel, a first electrode in each of the first sub pixel and the second sub pixel on the substrate, an organic layer with P-type polarity or N-type polarity on the first electrode, and a second electrode on the organic layer. The organic layer provided in the first sub pixel and the organic layer provided in the second sub pixel are spaced apart from each other with a doping layer provided in the boundary area between the first sub pixel and the second sub pixel. The doping layer is doped with dopant whose polarity is opposite to that of the organic layer.

公开(公告)号：US20190165055A1

公开(公告)日：2019-05-30

申请号：US16201648

申请日：2018-11-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Howon Choi ,  Jonggeun Yoon

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3225

Abstract: A light-emitting display device is provided. The light-emitting display device includes a display panel and subpixels. The subpixels are positioned in a display area of the display panel. At least one of the subpixels includes a color filter disposed between two electrode layers, and at least another one of the subpixels includes a color filter disposed on a protection layer on the two electrode layers.

公开(公告)号：US20190131352A1

公开(公告)日：2019-05-02

申请号：US16151518

申请日：2018-10-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Howon Choi

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  G09G3/3291

Abstract: An organic light-emitting display comprises an overcoat layer disposed on a substrate, the overcoat layer having concave portion and convex portion disposed between neighboring concave portions, and an organic light-emitting diode and an auxiliary organic light-emitting diode disposed on the overcoat layer. A first electrode of the organic light-emitting diode is placed in the concave portion. An auxiliary electrode of the auxiliary organic light-emitting diode is placed on the convex portion.