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公开(公告)号：US10985338B2
公开(公告)日：2021-04-20
申请号：US17016007
申请日：2020-09-09
Applicant: LG Display Co., Ltd.
Inventor： Sung Hoon Pieh , Chang Wook Han , Hong Seok Choi , Ki-Woog Song , So Yeon Ahn , Seung Hyun Kim
Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
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公开(公告)号：US10347858B2
公开(公告)日：2019-07-09
申请号：US15922613
申请日：2018-03-15
Applicant: LG DISPLAY CO., LTD.
Inventor： Ki-Woog Song , Sung Hoon Pieh , Youn Seok Kam , Tae Shick Kim , Se Ung Kim , Hyung June Kim
Abstract: A white organic light emitting device includes a first emission part between a first electrode and a second electrode, and configured to include a first emission layer, the first electrode being a reflective electrode, a second emission part on the first emission part, and configured to include a second emission layer, and a third emission part on the second emission part, and configured to include a third emission layer.
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公开(公告)号：US10177330B2
公开(公告)日：2019-01-08
申请号：US14873414
申请日：2015-10-02
Applicant: LG Display Co., Ltd.
Inventor： Sung Hoon Pieh , Chang Wook Han , Hong Seok Choi , Ki-Woog Song , So Yeon Ahn , Seung Hyun Kim
Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
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公开(公告)号：US09966551B2
公开(公告)日：2018-05-08
申请号：US15601912
申请日：2017-05-22
Applicant: LG Display Co., Ltd.
Inventor： Ki-Woog Song , Sung Hoon Pieh , Youn Seok Kam , Tae Shick Kim , Se Ung Kim , Hyung June Kim
CPC classification number: H01L51/504 , H01L51/5044 , H01L51/5265
Abstract: Discussed is a white organic light emitting device for enhancing emission efficiency and panel efficiency. The white organic light emitting device can include a first emission part between a first electrode and a second electrode and configured to include a first emission layer (EML), a second emission part on the first emission part and configured to include a second EML, and a third emission part on the second emission part and configured to include a third EML. The first to third emission parts have an emission position of emitting layers (EPEL) structure in which the first to third emission parts have a maximum emission range in respective emission areas of the first to third EMLs.
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公开(公告)号：US10818862B2
公开(公告)日：2020-10-27
申请号：US16776344
申请日：2020-01-29
Applicant: LG Display Co., Ltd.
Inventor： Sung Hoon Pieh , Chang Wook Han , Hong Seok Choi , Ki-Woog Song , So Yeon Ahn , Seung Hyun Kim
Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
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Patent Agency Ranking
公开(公告)号：US10355231B2
公开(公告)日：2019-07-16
申请号：US16205025
申请日：2018-11-29
Applicant: LG Display Co., Ltd.
Inventor： Sung Hoon Pieh , Chang Wook Han , Hong Seok Choi , Ki-Woog Song , So Yeon Ahn , Seung Hyun Kim
Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
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公开(公告)号：US09666824B2
公开(公告)日：2017-05-30
申请号：US14842721
申请日：2015-09-01
Applicant: LG Display Co., Ltd.
Inventor： Seunghyun Kim , Hongseok Choi , Sung Hoon Pieh , Tae Seok Lim
Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
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公开(公告)号：US10586939B2
公开(公告)日：2020-03-10
申请号：US16421777
申请日：2019-05-24
Applicant: LG Display Co., Ltd.
Inventor： Sung Hoon Pieh , Chang Wook Han , Hong Seok Choi , Ki-Woog Song , So Yeon Ahn , Seung Hyun Kim
Abstract: An organic light emitting display device comprises two emission portions between first and second electrodes, wherein at least one among the two emission portions includes two emitting layers, whereby efficiency and a color reproduction ratio may be improved.
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公开(公告)号：US09859519B2
公开(公告)日：2018-01-02
申请号：US15582382
申请日：2017-04-28
Applicant: LG Display Co., Ltd.
Inventor： Seunghyun Kim , Hongseok Choi , Sung Hoon Pieh , Tae Seok Lim
CPC classification number: H01L51/5044 , H01L27/3209 , H01L51/5004 , H01L51/504 , H01L51/5056 , H01L51/5206 , H01L51/5221 , H01L51/5265 , H01L51/5278 , H01L2251/558
Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
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公开(公告)号：US09722199B2
公开(公告)日：2017-08-01
申请号：US14842721
申请日：2015-09-01
Applicant: LG Display Co., Ltd.
Inventor： Seunghyun Kim , Hongseok Choi , Sung Hoon Pieh , Tae Seok Lim
CPC classification number: H01L51/5044 , H01L27/3209 , H01L51/5004 , H01L51/504 , H01L51/5056 , H01L51/5206 , H01L51/5221 , H01L51/5265 , H01L51/5278 , H01L2251/558
Abstract: An organic light emitting display device comprises first and second electrodes facing each other on a substrate; and three emission portions arranged between the first electrode and the second electrode, wherein at least one among the three emission portions includes two emitting layers, and the first, second and third emission portions being collectively configured as a TOL-FESE (Thickness of Organic Layers between the First Electrode and the Second Electrode) structure in which thicknesses of organic layers between the first electrode and the second electrode are different from one another, each organic layer having a specified thickness that provides the organic light emitting display device having the TOL-FESE structure with improved red efficiency or blue efficiency and minimized color shift rate with respect to a viewing angle, when compared to an organic light emitting display device that lacks the TOL-FESE structure.
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