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：US10741616B2

公开(公告)日：2020-08-11

申请号：US16723036

申请日：2019-12-20

Applicant: LG DISPLAY CO., LTD.

Inventor： JongSung Kim ,  JoonYoung Heo

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

Abstract: A method of manufacturing an organic light emitting display device, includes forming a thin film transistor on a substrate, the substrate having emissive areas; forming a planarization layer on the thin film transistor; forming a contact hole exposing a source or drain electrode of the thin film transistor through the planarization layer; forming a first electrode connected to the source or drain electrode of the thin film transistor through the contact hole; forming a hole between adjacent emissive areas, the hole being provided in the planarization layer; forming a pixel defining layer on a portion of the first electrode and in the hole, wherein the pixel defining layer fills a portion of the hole and is provided on both side wall and floor of the hole; and forming a light emitting layer, a second electrode and an encapsulation layer sequentially on the substrate having the first electrode and the pixel defining layer.

公开(公告)号：US10608061B2

公开(公告)日：2020-03-31

申请号：US15786178

申请日：2017-10-17

Applicant: LG DISPLAY CO., LTD.

Inventor： JongSung Kim

IPC: H01L27/32 ,  H01L51/52

Abstract: Disclosed are a light emitting display device and a method of manufacturing the same, which prevent a lifetime of a light emitting layer from being shortened and prevent occurrence of a turn-on defect. The light emitting display device includes a plurality of pixels each including a transistor having a gate electrode, an active layer overlapping the gate electrode, a source electrode connected to one side of the active layer, and a drain electrode connected to another side of the active layer. The pixels further include a light emitting device having a first electrode, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer. The light emitting display device includes a contact hole, and the first electrodes of at least two of the pixels are positioned on and electrically connected to respective source electrodes or to respective drain electrodes in the contact hole.

公开(公告)号：US10211272B2

公开(公告)日：2019-02-19

申请号：US15297973

申请日：2016-10-19

Applicant: LG Display Co., Ltd.

Inventor： JongSung Kim ,  JongGeun Yoon ,  Goeun Jung ,  HyungGeun Kwon

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

Abstract: Discussed are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device can include first electrodes that are disposed on a substrate, organic light-emitting layers that are disposed on the first electrodes, banks that overlap edges of the first electrodes and define pixels, light-blocking layers that are disposed on the banks, and resin layers that are disposed between the light-blocking layers and include an adhesive material. A resin transfer pattern that penetrates each of the light-blocking layers from one side to the other side may be formed in the light-blocking layers. The resin layer disposed on one side of each of the light-blocking layers and the resin layer disposed on the other side of the light-blocking layer are connected to each other via the resin transfer pattern.

公开(公告)号：US10211271B2

公开(公告)日：2019-02-19

申请号：US15828216

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： JongSung Kim ,  Ho-Jin Kim

IPC: H01L27/32

Abstract: Disclosed is an organic light emitting display device for reducing or preventing anodes from being partially detached or torn in high resolution models. The organic light emitting display device includes a substrate including first and second subpixels disposed adjacent to each other in a first axis direction, a first anode electrode provided in the first subpixel and connected to a first TFT of the first subpixel through a first contact hole, and a second anode electrode provided in the second subpixel and connected to a second TFT of the second subpixel through a second contact hole. The first and second contact holes are disposed in a diagonal direction, the first anode electrode protrudes from the first contact hole in a direction toward the second subpixel, and the second anode electrode protrudes from the second contact hole in a direction toward the first subpixel. Accordingly, partial detachment of anode electrodes is reduced, or in some cases, prevented.

公开(公告)号：US10181500B2

公开(公告)日：2019-01-15

申请号：US15391756

申请日：2016-12-27

Applicant: LG Display Co., Ltd.

Inventor： JongSung Kim

IPC: H01L33/00 ,  H01L27/32 ,  H01L51/52 ,  G03F7/00

Abstract: Disclosed are a display device and a method of manufacturing the same, which prevent a reduction in an aperture ratio and occurrence of color mixing caused by a process error of a black matrix and a color filter. The display device includes a plurality of color filters, an inorganic layer covering the plurality of color filters, and a black matrix disposed on the inorganic layer between the plurality of color filters.

公开(公告)号：US20180151651A1

公开(公告)日：2018-05-31

申请号：US15828216

申请日：2017-11-30

Applicant: LG Display Co., Ltd.

Inventor： JongSung Kim ,  Ho-Jin Kim

IPC: H01L27/32

CPC classification number: H01L27/3248 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/326 ,  H01L27/3262

Abstract: Disclosed is an organic light emitting display device for reducing or preventing anodes from being partially detached or torn in high resolution models. The organic light emitting display device includes a substrate including first and second subpixels disposed adjacent to each other in a first axis direction, a first anode electrode provided in the first subpixel and connected to a first TFT of the first subpixel through a first contact hole, and a second anode electrode provided in the second subpixel and connected to a second TFT of the second subpixel through a second contact hole. The first and second contact holes are disposed in a diagonal direction, the first anode electrode protrudes from the first contact hole in a direction toward the second subpixel, and the second anode electrode protrudes from the second contact hole in a direction toward the first subpixel. Accordingly, partial detachment of anode electrodes is reduced, or in some cases, prevented.