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公开(公告)号：US20170084855A1
公开(公告)日：2017-03-23
申请号：US15189739
申请日：2016-06-22
Applicant: LG DISPLAY CO., LTD.
Inventor： Younseok KAM , Chang Wook HAN , Hongseok CHOI , SoYeon AHN , Taeshick KIM , Mingyu LEE
CPC classification number: H01L51/504 , H01L27/3209 , H01L27/3244 , H01L51/5004 , H01L51/5056 , H01L51/5064 , H01L51/5265 , H01L51/5278 , H01L2251/552 , H01L2251/558
Abstract: Disclosed is an organic light emitting display (OLED) apparatus with improved efficiency and lifespan, wherein the OLED apparatus includes an anode, a cathode, and a light-emitting unit disposed in-between, wherein the light-emitting unit includes a first emission layer, and a first hole transporting layer having first and second materials, wherein the first material has a higher hole mobility than that of the second material so as to improve a transfer of holes from the first hole transporting layer to the first emission layer, and the second material has a higher triplet energy level than that of the first material so as to reduce a transfer of electrons from the first emission layer to the first hole transporting layer.
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公开(公告)号：US20180254307A1
公开(公告)日：2018-09-06
申请号：US15969504
申请日：2018-05-02
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungRyong JOUNG , ChangWook HAN , KangJu LEE , Hongseok CHOI , Hansun PARK , SoYeon AHN , Seongsu JEON , Wonhoe KOO , JeaHo PARK
Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.
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公开(公告)号：US20200020755A1
公开(公告)日：2020-01-16
申请号：US16582678
申请日：2019-09-25
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungRyong JOUNG , ChangWook HAN , KangJu LEE , Hongseok CHOI , Hansun PARK , SoYeon AHN , Seongsu JEON , Wonhoe KOO , JeaHo PARK
Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.
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公开(公告)号：US20170155071A1
公开(公告)日：2017-06-01
申请号：US15192487
申请日：2016-06-24
Applicant: LG DISPLAY CO., LTD.
Inventor： Yoondeok HAN , JaeMan LEE , SoYeon AHN , Heedong CHOI , JungSoo PARK
CPC classification number: H01L51/5004 , H01L27/3209 , H01L27/322 , H01L27/3246 , H01L27/3248 , H01L51/5016 , H01L51/504 , H01L51/5044 , H01L51/5056 , H01L51/506 , H01L51/5072 , H01L51/5088 , H01L51/5278 , H01L2251/552 , H01L2251/558
Abstract: Discussed is an organic light emitting display device. The organic light emitting display device can include a first emission part, a second emission part on the first emission part, and a first P-type charge generation layer between the first emission part and the second emission part. The first emission part includes a first hole transport layer, a first emission layer, and a first electron transport layer. The second emission part includes a second hole transport layer, a second emission layer, and a second electron transport layer. The second hole transport layer and the first P-type charge generation layer are disposed adjacent to each other. The second hole transport layer includes a first material and a second material. The first material has an absolute value of a HOMO energy level which can be greater than an absolute value of a LUMO energy level of the first P-type charge generation layer.
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Patent Agency Ranking
公开(公告)号：US20170155070A1
公开(公告)日：2017-06-01
申请号：US15163462
申请日：2016-05-24
Applicant: LG DISPLAY CO., LTD.
Inventor： Yoondeok HAN , Hongseok CHOI , SoYeon AHN , JungSoo PARK , Yosub LEE
CPC classification number: H01L51/504 , H01L27/124 , H01L27/1248 , H01L27/3209 , H01L27/3246 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L27/3276 , H01L51/5004 , H01L51/5056 , H01L51/5072 , H01L51/5278 , H01L2251/5384 , H01L2251/552
Abstract: An organic light emitting display device includes: a first light emitting unit including a first light emitting layer; and a second light emitting unit on the first light emitting unit including a second light emitting layer. The first light emitting layer includes at least one dopant and at least two hosts. The at least two hosts are different from each other in electron mobility and hole mobility.
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公开(公告)号：US20170084856A1
公开(公告)日：2017-03-23
申请号：US15221434
申请日：2016-07-27
Applicant: LG Display Co., Ltd.
Inventor： TaeIl KUM , Ki-Woog SONG , SoYeon AHN , Yongjoong CHOI , Mingyu LEE
CPC classification number: H01L51/504 , H01L51/5218 , H01L51/5234 , H01L51/5265 , H01L51/5278 , H01L2251/5315 , H01L2251/558
Abstract: An OLED apparatus that may include a reflection-anode, a transparent-cathode, and a plurality of stacks between the reflection-anode and the transparent-cathode, wherein, among the plurality of stacks, a thickness of the stack disposed relatively close to the transparent-cathode is larger than a thickness of the stack disposed relatively close to the reflection-anode so that it is possible to optimize a micro-cavity of light emitted from the plurality of stacks, thereby improving a light-emission efficiency and a color reproduction ratio and reducing a color change rate in accordance with a viewing angle.
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公开(公告)号：US20170092887A1
公开(公告)日：2017-03-30
申请号：US15195024
申请日：2016-06-28
Applicant: LG Display Co., Ltd.
Inventor： JaeMan LEE , Taesun YOO , Mi-Young HAN , SoYeon AHN , Heedong CHOI , JungSoo PARK , Yoondeok HAN
CPC classification number: H01L51/5004 , H01L27/3209 , H01L27/3211 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5271 , H01L51/5278 , H01L2251/552
Abstract: An organic light emitting device including an organic light emitting element having a low driving voltage and a high luminous efficiency is provided. The organic light emitting device includes two or more stack emission units, and a charge generating layer including an N-type charge generating layer and a P-type charge generating layer is disposed between the stack emission units. Herein, the P-type charge generating layer is formed of a material having an LUMO energy level similar to an HOMO energy level of a hole transporting layer injected with holes from the P-type charge generating layer. Accordingly, even if the P-type charge generating layer is not additionally doped with a P-type dopant, it is possible to readily inject holes into a stack emission unit adjacent to the P-type charge generating layer.
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公开(公告)号：US20170084875A1
公开(公告)日：2017-03-23
申请号：US15274827
申请日：2016-09-23
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungRyong JOUNG , ChangWook HAN , KangJu LEE , Hongseok CHOI , Hansun PARK , SoYeon AHN , Seongsu JEON , Wonhoe KOO , JeaHo PARK
CPC classification number: H01L27/3244 , H01L27/3258 , H01L51/5209 , H01L51/5225 , H01L51/5262
Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.
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公开(公告)号：US20160343776A1
公开(公告)日：2016-11-24
申请号：US15157163
申请日：2016-05-17
Applicant: LG Display Co., Ltd.
Inventor： JeongHaeng HEO , Jaeil SONG , SangGun LEE , SoYeon AHN
CPC classification number: H01L27/322 , H01L51/005 , H01L51/0058 , H01L51/0059 , H01L51/006 , H01L51/0072 , H01L51/5004 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5271 , H01L51/5278 , H01L2251/552
Abstract: Provided is an organic light emitting device. The organic light emitting device includes a plurality of light emitting units laminated between a first electrode and a second electrode and each including an organic emitting layer, and a charge generation layer between the light emitting units. Further, the charge generation layer includes an N-type charge generation layer disposed to be in direct contact with an organic emitting layer of the adjacent light emitting unit and HOMO levels of the N-type charge generation layer and the organic emitting layer are regulated. Thus, a color change rate based on a viewing angle can be improved, and efficiency and a lifetime of the organic light emitting device can be improved.
Abstract translation: 提供了一种有机发光器件。 有机发光器件包括层叠在第一电极和第二电极之间并且各自包括有机发光层的多个发光单元和在发光单元之间的电荷产生层。 此外，电荷产生层包括与相邻发光单元的有机发光层直接接触并且调节N型电荷产生层和有机发光层的HOMO能级的N型电荷产生层。 因此，可以提高基于视角的颜色变化率，并且可以提高有机发光器件的效率和寿命。
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