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1.
公开(公告)号:US11882715B2
公开(公告)日:2024-01-23
申请号:US17011920
申请日:2020-09-03
Applicant: LG Display Co., Ltd.
Inventor: Jae-Hyeon Kim , Seok-Hyun Kim , Kwan-Soo Kim , Young-Nam Lim
IPC: H10K50/844 , H10K50/818 , H10K50/125
CPC classification number: H10K50/818 , H10K50/125 , H10K50/844
Abstract: Disclosed is a display device which may display images in a transmission portion, and may improve uniformity of a display in both the emission portion and the transmission portion, thus may improve efficiency of a device and improve a lifespan.
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公开(公告)号:US11223022B2
公开(公告)日:2022-01-11
申请号:US16549897
申请日:2019-08-23
Applicant: LG Display Co., Ltd.
Inventor: Jae-Hyeon Kim , Eun-Jung Park , Seok-Hyun Kim , Kwan-Soo Kim
Abstract: Disclosed are a light emitting device which has improved reliability by increasing bonding force between a cathode and organic layers contacting both surfaces thereof, and a transparent display device using the same.
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3.
公开(公告)号:US10673005B2
公开(公告)日:2020-06-02
申请号:US16198293
申请日:2018-11-21
Applicant: LG Display Co., Ltd.
Inventor: Eun-Jung Park , Sang-Kyoung Moon , Seok-Hyun Kim
Abstract: An organic light-emitting device is disclosed. The organic light-emitting device includes light-emitting layers that emit light of the same color in a stack structure. The phosphorescence and fluorescence characteristics at the exit side and the inside of the organic light-emitting device are adjusted to improve a viewing angle, lifetime, and efficiency.
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公开(公告)号:US10229954B2
公开(公告)日:2019-03-12
申请号:US15794395
申请日:2017-10-26
Applicant: LG Display Co., Ltd.
Inventor: Eun-Jung Park , Kwan-Soo Kim , Han-Byeol Seok , Seok-Hyun Kim
Abstract: An organic light-emitting device, including: a substrate including a blue sub-pixel, a green sub-pixel, and a red sub-pixel, each blue sub-pixel, green sub-pixel, and red sub-pixel respectively including an anode, a first common layer, a second common layer, and a cathode, in the blue sub-pixel, a blue light-emitting layer between the first common layer and the second common layer, in the green sub-pixel, a green light-emitting layer between the first common layer and the second common layer, and in the red sub-pixel, a red light-emitting layer between the first common layer and the second common layer, wherein HOMO energy levels of the blue, green, and red light-emitting layers are each lower than a HOMO energy level of the first common layer, and wherein the HOMO energy level of the green light-emitting layer is 0.2 eV or more higher than the HOMO energy level of the blue light-emitting layer.
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公开(公告)号:US10014357B2
公开(公告)日:2018-07-03
申请号:US15718158
申请日:2017-09-28
Applicant: LG Display Co., Ltd.
Inventor: Han-Byeol Seok , Eun-Jung Park , Seok-Hyun Kim
CPC classification number: H01L27/3248 , H01L27/322 , H01L27/3246 , H01L51/5004 , H01L51/5056 , H01L51/5072 , H01L51/5203 , H01L51/5278 , H01L2251/5346
Abstract: An organic light-emitting device, including: an anode and a cathode opposite each other, a first stack and a second stack between the anode and the cathode, and a charge generation layer between the first stack and the second stack, the charge generation layer including an n-type charge generation layer and a p-type charge generation layer, wherein the p-type charge generation layer includes one first organic material, wherein the n-type charge generation layer includes a second organic material and an n-type dopant, wherein the n-type charge generation layer is divided into a first region contacting the first stack, a second region contacting the p-type charge generation layer, and a third region between the first region and the second region, and wherein a dopant content of the n-type dopant is stepwise increased in an order of: the first region, the third region, and the second region.
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公开(公告)号:US20180033995A1
公开(公告)日:2018-02-01
申请号:US15663073
申请日:2017-07-28
Applicant: LG Display Co., Ltd.
Inventor: Byung-Soo Kim , Han-Byeol Seok , Seok-Hyun Kim
IPC: H01L51/50
Abstract: An organic light-emitting device includes: an anode and a cathode opposite each other, an organic light-emitting layer between the anode and the cathode, and a hole transport unit between the anode and the organic light-emitting layer and including two or more pairs of hole injection layers and hole transport layers each formed of a respective single material, the hole injection layers and the hole transport layers being alternately stacked.
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公开(公告)号:US20240188406A1
公开(公告)日:2024-06-06
申请号:US18443114
申请日:2024-02-15
Applicant: LG Display Co., Ltd.
Inventor: Young-Nam Lim , Hyun-Chul Choi , Kwan-Soo Kim , Seok-Hyun Kim , Jae-Hyeon Kim
CPC classification number: H10K71/00 , H10K50/17 , H10K50/171 , H10K59/35
Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
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公开(公告)号:US11678560B2
公开(公告)日:2023-06-13
申请号:US17102028
申请日:2020-11-23
Applicant: LG Display Co., Ltd.
Inventor: Young-Nam Lim , Hyun-Chul Choi , Kwan-Soo Kim , Seok-Hyun Kim , Jae-Hyeon Kim
CPC classification number: H10K71/00 , H10K50/17 , H10K50/171 , H10K59/35
Abstract: A display device includes a substrate including a display area having first color subpixels and a transparent area inside the display area, an array layer in the display area on the substrate, a first electrode in the first color subpixels on the array layer, a first emission assisting layer on the first electrode, an emitting material layer in the first color subpixels on the first emission assisting layer, a second emission assisting layer on the emitting material layer, a deposition preventing layer in the transparent area on the second emission assisting layer, a second electrode on the second emission assisting layer, the second electrode selectively disposed in a region where the deposition preventing layer is not disposed, an encapsulating layer on the deposition preventing layer and the second electrode, a polarizing layer in the display area on the encapsulating layer, an auxiliary equipment in the transparent area under the substrate.
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公开(公告)号:US10566562B2
公开(公告)日:2020-02-18
申请号:US15663073
申请日:2017-07-28
Applicant: LG Display Co., Ltd.
Inventor: Byung-Soo Kim , Han-Byeol Seok , Seok-Hyun Kim
Abstract: An organic light-emitting device includes: an anode and a cathode opposite each other, an organic light-emitting layer between the anode and the cathode, and a hole transport unit between the anode and the organic light-emitting layer and including two or more pairs of hole injection layers and hole transport layers each formed of a respective single material, the hole injection layers and the hole transport layers being alternately stacked.
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公开(公告)号:US10373559B2
公开(公告)日:2019-08-06
申请号:US15838887
申请日:2017-12-12
Applicant: LG DISPLAY CO., LTD.
Inventor: Seok-Hyun Kim , Eun-Jung Park , Ho-Sung Kim
IPC: H01L29/08 , G09G3/3233 , G09G3/3291 , H01L51/52 , G09G3/3216 , H01L27/32 , G09G3/3225
Abstract: An organic light-emitting device and an organic light-emitting display device using the same are discussed. In a structure in which emission layers that emit light having the same color are provided in a plurality of stacks, the emission layers have different properties such that the light emission efficiencies of the stacks are made uniform, whereby the lifespan of the organic light-emitting device is increased through charge balance.
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