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公开(公告)号：US10468623B2
公开(公告)日：2019-11-05
申请号：US15898311
申请日：2018-02-16
Applicant: JOLED INC.
Inventor： Hiroyuki Ajiki , Masaki Nishimura
Abstract: An organic EL display panel includes a substrate, pixel electrodes, a current feeding auxiliary electrode layer provided to extend in a column direction over gaps between the pixel electrodes adjacent in a row direction, light emitting layers that each contain an organic light emitting material and are disposed over the pixel electrodes, a functional layer provided ranging over the light emitting layers and over the current feeding auxiliary electrode layer, and a common electrode layer provided continuously over the functional layer. A part of the functional layer is lacking or thinned. The common electrode layer is in direct contact with the current feeding auxiliary electrode layer exposed due to the lacking of the functional layer, or is electrically connected to the current feeding auxiliary electrode layer at a lower resistance at the thinned part of the functional layer than at other parts of the functional layer.
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公开(公告)号：US10581019B2
公开(公告)日：2020-03-03
申请号：US15715800
申请日：2017-09-26
Applicant: JOLED INC.
Inventor： Hideyuki Shirahase , Hiroyuki Ajiki , Jun Hashimoto , Masaki Nishimura
Abstract: An organic electroluminescence element includes an anode, a light-emitting layer disposed over the anode, a functional layer disposed on the light-emitting layer in contact with the light-emitting layer and including a first metal, a light-transmitting conductive layer disposed on the functional layer in contact with the functional layer and composed of a metallic oxide, and a cathode disposed on the light-transmitting conductive layer in contact with the light-transmitting conductive layer and composed of a metal. The functional layer has a film thickness of 15 to 35 nm. A surface of the anode on the light-emitting layer side and an interface between the cathode and the light-transmitting conductive layer are spaced from each other by not less than 150 nm.
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公开(公告)号：US10516133B2
公开(公告)日：2019-12-24
申请号：US16392558
申请日：2019-04-23
Applicant: JOLED INC.
Inventor： Masaki Nishimura , Hiroyuki Ajiki , Shuhei Yada , Yasuharu Shinokawa
Abstract: An organic EL display panel includes a substrate, a plurality of pixel electrodes disposed in a matrix pattern over the substrate, a first current feeding auxiliary electrode layer disposed to extend in a column or row direction in at least one of gaps between adjacent ones of the pixel electrodes over the substrate, a second current feeding auxiliary electrode layer that contains aluminum as a main constituent and is disposed to be superposed on the first current feeding auxiliary electrode layer, a plurality of light emitting layers disposed on the plurality of pixel electrodes, and a common electrode layer disposed continuously to cover the first current feeding auxiliary electrode layer and the second current feeding auxiliary electrode layer as well as an upper side of the plurality of light emitting layers.
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4.发明申请公开(公告)号：US20180248154A1
公开(公告)日：2018-08-30
申请号：US15901368
申请日：2018-02-21
Applicant: JOLED INC.
Inventor： Hideyuki Shirahase , Hiroyuki Ajiki , Jun Hashimoto , Masaki Nishimura
CPC classification number: H01L51/5265 , H01L27/3244 , H01L51/5012 , H01L51/5076 , H01L51/5092 , H01L51/5218 , H01L51/5234 , H01L51/56 , H01L2227/323 , H01L2251/308 , H01L2251/5315 , H01L2251/558
Abstract: An organic EL element includes an anode, a light emitting layer, a functional layer, a cathode, and a low refractive index layer. The light emitting layer is disposed above the anode. The functional layer is disposed on and in contact with the light emitting layer and includes a first metal. The cathode is disposed on and in contact with the functional layer and is made of a light transmissive metal oxide. The low refractive index layer is disposed on and in contact with the cathode. Refractive index of the low refractive index layer is smaller than refractive index of the cathode, film thickness of the functional layer is from 15 nm to 35 nm, and a distance between an anode-side surface of the light emitting layer and an interface between the cathode and the low refractive index layer is 110 nm or greater.
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公开(公告)号：US10937988B2
公开(公告)日：2021-03-02
申请号：US16726208
申请日：2019-12-23
Applicant: JOLED INC.
Inventor： Masaki Nishimura , Hiroyuki Ajiki , Shuhei Yada , Yasuharu Shinokawa
Abstract: An organic EL display panel includes a substrate, a plurality of pixel electrodes disposed in a matrix pattern over the substrate, a first current feeding auxiliary electrode layer disposed to extend in a column or row direction in at least one of gaps between adjacent ones of the pixel electrodes over the substrate, a second current feeding auxiliary electrode layer that contains aluminum as a main constituent and is disposed to be superposed on the first current feeding auxiliary electrode layer, a plurality of light emitting layers disposed on the plurality of pixel electrodes, and a common electrode layer disposed continuously to cover the first current feeding auxiliary electrode layer and the second current feeding auxiliary electrode layer as well as an upper side of the plurality of light emitting layers.
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Patent Agency Ranking
公开(公告)号：US10665812B2
公开(公告)日：2020-05-26
申请号：US15892537
申请日：2018-02-09
Applicant: JOLED INC.
Inventor： Hiroyuki Ajiki , Masaki Nishimura
Abstract: There is provided an organic EL display panel having a substrate, a plurality of pixel electrodes arranged in a matrix pattern on the substrate, and a light-emitting layer formed on each pixel electrode. The organic EL display panel includes a power supply auxiliary electrode layer securing an electrode forming region which extends in a row direction or a column direction on at least one of gaps between pixel electrodes adjoining to each other on the substrate in the row or column direction and being formed so as not to come into contact with the pixel electrode adjoining to the electrode forming region, a functional layer configured to be formed so as to extend over the light-emitting layer and the power supply auxiliary electrode layer, and a common electrode layer configured to be formed so as to continuously extend on the functional layer.
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公开(公告)号：US09704925B2
公开(公告)日：2017-07-11
申请号：US14771577
申请日：2013-08-20
Applicant: JOLED INC.
Inventor： Toshiyuki Akiyama , Hiroyuki Ajiki
CPC classification number: H01L27/3211 , H01L27/3246 , H01L51/5012 , H01L51/5036 , H01L51/5056 , H01L2251/558
Abstract: An EL display device including a light emitter configured to emit at least red, green, and blue light; and a thin film transistor array that controls light emission. The light emitter includes light-emitting layers within areas defined by a bank that emit at least red, green, and blue light. The light emitter further includes electrodes that extend under the bank and hole transport layers that are above the electrodes within the areas defined by the bank, the light-emitting layers being formed on the hole transport layers. The hole transport layers each have a main portion and a peripheral protrusion in contact with a side surface of the bank that protrudes upwards from the main portion. The light-emitting layers each have a peripheral protrusion in contact with a side surface of the bank, formed above a corresponding one of the peripheral protrusions.
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公开(公告)号：US09991323B2
公开(公告)日：2018-06-05
申请号：US15150065
申请日：2016-05-09
Applicant: JOLED INC. , Japan Display Inc.
Inventor： Kazuhiro Yokota , Masaki Nishimura , Hiroyuki Ajiki
CPC classification number: H01L27/3246 , H01L27/3211 , H01L27/323 , H01L51/5012 , H01L51/5016 , H01L51/5036 , H01L51/5265 , H01L2251/55 , H01L2251/558
Abstract: An organic electroluminescence (EL) element emitting blue light from a light emitting surface and including: a first electrode; an organic light-emitting layer disposed on the first electrode and/or closer to the light emitting surface than the first electrode; and a second electrode disposed on the organic light-emitting layer and/or closer to the light emitting surface than the organic light-emitting layer. In the organic EL element emitting blue light, the organic light-emitting layer contains an organic light-emitting material emitting, through photoluminescence, blue light that has a CIE y coordinate no greater than 0.13 such that a luminance drop due to film shape is suppressed to 10% or smaller.
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公开(公告)号：US10319935B2
公开(公告)日：2019-06-11
申请号：US15945655
申请日：2018-04-04
Applicant: JOLED INC.
Inventor： Masaki Nishimura , Hiroyuki Ajiki , Shuhei Yada , Yasuharu Shinokawa
Abstract: An organic EL display panel includes a substrate, a plurality of pixel electrodes disposed in a matrix pattern over the substrate, a first current feeding auxiliary electrode layer disposed to extend in a column or row direction in at least one of gaps between adjacent ones of the pixel electrodes over the substrate, a second current feeding auxiliary electrode layer that contains aluminum as a main constituent and is disposed to be superposed on the first current feeding auxiliary electrode layer, a plurality of light emitting layers disposed on the plurality of pixel electrodes, and a common electrode layer disposed continuously to cover the first current feeding auxiliary electrode layer and the second current feeding auxiliary electrode layer as well as an upper side of the plurality of light emitting layers.
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10.发明授权公开(公告)号：US10305068B2
公开(公告)日：2019-05-28
申请号：US15901368
申请日：2018-02-21
Applicant: JOLED INC.
Inventor： Hideyuki Shirahase , Hiroyuki Ajiki , Jun Hashimoto , Masaki Nishimura
Abstract: An organic EL element includes an anode, a light emitting layer, a functional layer, a cathode, and a low refractive index layer. The light emitting layer is disposed above the anode. The functional layer is disposed on and in contact with the light emitting layer and includes a first metal. The cathode is disposed on and in contact with the functional layer and is made of a light transmissive metal oxide. The low refractive index layer is disposed on and in contact with the cathode. Refractive index of the low refractive index layer is smaller than refractive index of the cathode, film thickness of the functional layer is from 15 nm to 35 nm, and a distance between an anode-side surface of the light emitting layer and an interface between the cathode and the low refractive index layer is 110 nm or greater.
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