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公开(公告)号：US10756293B2
公开(公告)日：2020-08-25
申请号：US15826577
申请日：2017-11-29
Applicant: LG Display Co., Ltd.
Inventor： Jae-Sung Lee , Jong-Hyeok Im , Do-Hyung Kim
Abstract: Disclosed is an organic light-emitting display device configured such that the undercut shape of an auxiliary electrode is improved and such that a region where the auxiliary electrode and a second electrode contact is filled with an inorganic film, whereby a gap is prevented from being formed and the reliability of the organic light-emitting display device is improved. The organic light-emitting display device includes a first electrode located on a substrate defined by an active area and a non-active area, an organic layer including an emissive layer located on the first electrode, a second electrode located on the organic layer, an auxiliary electrode located in the non-active area, and a passivation layer located on the auxiliary electrode, the passivation layer having a reverse taper-shaped end so as to be exposed to the side surface of the auxiliary electrode. The second electrode extends to the non-active area so as to be electrically connected to the exposed auxiliary electrode. In addition, the auxiliary electrode has a taper-shaped end under the passivation layer.
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公开(公告)号：US10418582B2
公开(公告)日：2019-09-17
申请号：US15825421
申请日：2017-11-29
Applicant: LG Display Co., Ltd.
Inventor： Jong-Hyeok Im , Jae-Sung Lee , Do-Hyung Kim
IPC: H01L27/32 , H01L51/52 , G09G3/3208
Abstract: An organic light emitting display device secures an auxiliary electrode with a sufficient area without forming a passivation layer, an additional planarization film, an additional connection electrode and an auxiliary electrode. Accordingly, manufacturing of a top-emission organic light emitting display device may use three to four fewer masks, thus advantageously simplifying the process and reducing manufacturing costs, the thickness of the organic light emitting display device and the resistance of the second electrode.
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公开(公告)号：US20180151828A1
公开(公告)日：2018-05-31
申请号：US15825421
申请日：2017-11-29
Applicant: LG Display Co., Ltd.
Inventor： Jong-Hyeok Im , Jae-Sung Lee , Do-Hyung Kim
IPC: H01L51/52 , H01L27/32 , G09G3/3208
Abstract: An organic light emitting display device secures an auxiliary electrode with a sufficient area without forming a passivation layer, an additional planarization film, an additional connection electrode and an auxiliary electrode. Accordingly, manufacturing of a top-emission organic light emitting display device may use three to four fewer masks, thus advantageously simplifying the process and reducing manufacturing costs, the thickness of the organic light emitting display device and the resistance of the second electrode.
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公开(公告)号：US11839114B2
公开(公告)日：2023-12-05
申请号：US17066353
申请日：2020-10-08
Applicant: LG Display Co., Ltd.
Inventor： Doo-Hyun Yoon , Hyoung-Su Kim , Hye-Seon Eom , Jong-Hyeok Im , Gyung-Min Kim
IPC: H01L27/32 , H10K59/121 , H10K50/813 , H10K50/818 , H10K50/852 , H10K50/86 , H10K59/38 , H10K59/122 , H10K102/00
CPC classification number: H10K59/1216 , H10K50/813 , H10K50/818 , H10K50/852 , H10K50/865 , H10K59/122 , H10K59/38 , H10K2102/3026
Abstract: The present disclosure discloses an organic light emitting display device. The organic light emitting display device includes a substrate, a driving transistor, a reflection electrode, a dielectric layer, a first and second electrode, and an organic light emitting layer. The driving transistor is in each of a plurality of pixel regions which are defined on the substrate. The reflection electrode is on the driving transistor, and is electrically connected to a gate electrode of the driving transistor. The dielectric layer is on the reflection electrode. The first electrode is on the dielectric layer, and is electrically connected to a source electrode of the driving transistor, and faces the reflection electrode. The organic light emitting layer is on the first electrode. The second electrode is on the organic light emitting layer.
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