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公开(公告)号：US10418520B2
公开(公告)日：2019-09-17
申请号：US16023930
申请日：2018-06-29
Applicant: LG Display Co., Ltd.
Inventor： Soo-Kang Kim , Won-Hoe Koo , Ji-Hyang Jang , So-Young Jo
Abstract: A light emitting display device includes: a light emitting element that includes a light emitting layer between a first electrode and a second electrode; a wavelength conversion layer overlapping the light emitting element; and an uneven layer that includes a plurality of furrows between the light emitting element and the wavelength conversion layer, wherein a shortest distance between a bottom surface of the plurality of furrows and the wavelength conversion layer is 0.1 um or greater.
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公开(公告)号：US11289682B2
公开(公告)日：2022-03-29
申请号：US16829653
申请日：2020-03-25
Applicant: LG Display Co., Ltd.
Inventor： Han-Sun Park , Won-Hoe Koo , Ji-Hyang Jang
Abstract: An OLED display device includes a first substrate including a plurality of sub-pixels each including an emission area and a non-emission area; organic light emitting diodes on the first substrate; a second substrate opposed to the first substrate; a black matrix and a color filter layer on one side of the second substrate; a spacer on the black matrix and overlapping or parallel to one of the plurality of the gate lines and the plurality of data lines; and a film layer on the spacer, wherein an air gap is provided between the second substrate and the film layer, and a part of the film layer is exposed by the air gap.
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公开(公告)号：US11107861B2
公开(公告)日：2021-08-31
申请号：US16210358
申请日：2018-12-05
Applicant: LG Display Co., Ltd.
Inventor： Woo-Ram Youn , Ji-Hyang Jang
Abstract: An organic light emitting diode display (OLED) is disclosed. The disclosed OLED includes a substrate including a plurality of sub-pixels, each sub-pixel comprising a display area and a non-display area surrounding the display area, the display area comprising a first display area at a center region of the display area and a second display area surrounding the first display area; a first electrode formed in the display area; an organic light emitting layer formed on the first electrode and extending to the non-display area; a third electrode formed on a portion of the organic light emitting layer in the first display area; and a second electrode formed on the third electrode and the organic light emitting layer, wherein the first and third electrodes are able to achieve a micro cavity effect.
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公开(公告)号：US10971558B2
公开(公告)日：2021-04-06
申请号：US16536209
申请日：2019-08-08
Applicant: LG Display Co., Ltd
Inventor： Ji-Hyang Jang , Won-Hoe Koo , Tae-Shick Kim
Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
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公开(公告)号：US10522600B2
公开(公告)日：2019-12-31
申请号：US15797802
申请日：2017-10-30
Applicant: LG DISPLAY CO., LTD.
Inventor： Young-Wook Kim , Hyun-Jong Noh , Seong-Han Hwang , Chi-Myung Ahn , Won-Hoe Koo , Ji-Hyang Jang
Abstract: Disclosed is an organic light-emitting display device having a micro lens array (MLA) structure applied to a display panel in order to improve light extraction efficiency. In the organic light-emitting display device, an optical device, including a reactive mesogen (RM) and a dye, is provided between a polarizer and a quarter wave plate (QWP) to block light spreading to a viewing angle, thereby reducing a diffuse reflection component due to the application of the MLA structure.
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Patent Agency Ranking
公开(公告)号：US10381601B2
公开(公告)日：2019-08-13
申请号：US15846812
申请日：2017-12-19
Applicant: LG Display Co., Ltd.
Inventor： Ji-Hyang Jang , So-Young Jo , Won-Hoe Koo
Abstract: Provided are an organic light-emitting diode (OLED) and an organic light-emitting device including the same. The OLED includes a first electrode, an organic emissive layer which includes a plurality of convex curves or a plurality of concave curves in a light-emitting region and of which a slope of an inclined plane of an upper region with respect to a horizontal line dividing a height of the plurality of convex curves into halves is greater than a slope of an inclined plane of a lower region thereof, and a second electrode provided on the organic emissive layer. Accordingly, the OLED and the organic light-emitting device including the same are capable of improving current efficiency.
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公开(公告)号：US10355234B2
公开(公告)日：2019-07-16
申请号：US15976975
申请日：2018-05-11
Applicant: LG Display Co., Ltd.
Inventor： Yong-Hoon Choi , Won-Hoe Koo , Jin-Tae Kim , Soo-Kang Kim , Ji-Hyang Jang
Abstract: An organic light emitting diode includes: a first electrode including a concave part or a convex part; an organic light emitting layer disposed on the first electrode; and a second electrode disposed on the organic light emitting layer.
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公开(公告)号：US11678552B2
公开(公告)日：2023-06-13
申请号：US17196859
申请日：2021-03-09
Applicant: LG Display Co., Ltd
Inventor： Ji-Hyang Jang , Won-Hoe Koo , Tae-Shick Kim
IPC: H01L51/52
CPC classification number: H10K59/38 , H10K50/844 , H10K59/122
Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.
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公开(公告)号：US11063244B2
公开(公告)日：2021-07-13
申请号：US16197059
申请日：2018-11-20
Applicant: LG Display Co., Ltd.
Inventor： So-Young Jo , Ji-Hyang Jang , Min-Geun Choi , Woo-Ram Youn
Abstract: An electroluminescent display device comprises a substrate; a thin film transistor disposed on the substrate; an overcoat layer disposed on the thin film transistor; and a light-emitting diode electrically connected to the thin film transistor through the overcoat layer, wherein the light-emitting diode includes a first electrode, a light-emitting layer on the first electrode and a second electrode on the light-emitting layer, and an emissive area is an area in which the light-emitting layer emits light by the first electrode or the second electrode, wherein the overcoat layer includes a micro lens at a position corresponding to the emissive area, and the light-emitting diode conforms to a morphology of the micro lens, and wherein the first electrode includes a first region and a second region, the first region comprises an electrode layer, and the second region includes the electrode layer and an electrode pattern disposed under the electrode layer.
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公开(公告)号：US10886432B2
公开(公告)日：2021-01-05
申请号：US16533548
申请日：2019-08-06
Applicant: LG Display Co., Ltd.
Inventor： Soo-Kang Kim , Won-Hoe Koo , Ji-Hyang Jang , So-Young Jo
Abstract: A light emitting display device includes: a light emitting element that includes a light emitting layer between a first electrode and a second electrode; a wavelength conversion layer overlapping the light emitting element; and an uneven layer that includes a plurality of furrows between the light emitting element and the wavelength conversion layer, wherein a shortest distance between a bottom surface of the plurality of furrows and the wavelength conversion layer is 0.1 um or greater.
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