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公开(公告)号：US20180033845A1
公开(公告)日：2018-02-01
申请号：US15709717
申请日：2017-09-20
Applicant: JOLED INC.
Inventor： Masakazu TAKATA
CPC classification number: H01L27/3246 , H01L27/3218 , H01L27/3283 , H01L51/0004
Abstract: An organic EL display panel includes plural streaks of first partition walls 16 on the upper side of an underlying layer 13 in such a manner that each of the plural streaks of the first partition walls 16 extends along a first direction, plural streaks of second partition walls 14 that are on the upper side of the underlying layer 13 in such a manner that each of the plural streaks of the second partition walls 14 extends along a second direction intersecting the first direction, and each have an upper surface 14a at a position lower than upper surfaces 16a of the first partition walls 16, and a light emitting layer 17 formed along the first direction on the upper side of the underlying layer 13 and in gaps 20 between the first partition walls 16 adjacent to each other in such a manner as to get over the plural streaks of the second partition walls 14. An organic EL display panel in which luminance unevenness is suppressed is thereby obtained.
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公开(公告)号：US20170117471A1
公开(公告)日：2017-04-27
申请号：US15125403
申请日：2015-02-26
Applicant: JOLED INC.
Inventor： Masakazu TAKATA , Hirotaka NANNO
CPC classification number: H01L51/0007 , H01L51/5012 , H01L51/5056 , H01L51/5072 , H01L51/56 , H01L2251/55
Abstract: A solution contains a functional material for constituting a function layer, and a solvent. The solvent contains a high-boiling-point solvent composed of one or more solvent components having a boiling point of not less than 200° C. The high-boiling-point solvent has a viscosity of from 13 mPa·s to 25 mPa·s, inclusive, and a surface tension of from 33 mN/m to 37 mN/m, inclusive.
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公开(公告)号：US20170062533A1
公开(公告)日：2017-03-02
申请号：US15123390
申请日：2015-02-23
Applicant: JOLED INC.
Inventor： Masakazu TAKATA
CPC classification number: H01L27/3246 , H01L27/3218 , H01L27/3283 , H01L51/0004
Abstract: An organic EL display panel includes plural streaks of first partition walls juxtaposed on the upper side of an underlying layer in such a manner that each of the plural streaks of the first partition walls extends along a first direction, plural streaks of second partition walls that are juxtaposed on the upper side of the underlying layer in such a manner that each of the plural streaks of the second partition walls extends along a second direction intersecting the first direction, and each have an upper surface at a position lower than upper surfaces of the first partition walls, and a light emitting layer formed along the first direction on the upper side of the underlying layer and in gaps between the first partition walls adjacent to each other in such a manner as to get over the plural streaks of the second partition walls.
Abstract translation: 有机EL显示面板包括多个条纹的第一分隔壁，其以下述方式并置在下层的上侧，使得第一分隔壁的多个条纹中的每一条沿着第一方向延伸，多条条纹的第二分隔壁是 以这样的方式并列在下层的上侧，使得第二分隔壁的多个条纹中的每一条沿着与第一方向相交的第二方向延伸，并且每个具有在比第一方向的上表面低的位置处的上表面 分隔壁，以及沿着第一方向形成的发光层，并且在彼此相邻的第一分隔壁之间的间隙中以越过第二分隔壁的多条纹的方式。
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公开(公告)号：US20220158112A1
公开(公告)日：2022-05-19
申请号：US17529277
申请日：2021-11-18
Applicant: JOLED Inc.
Inventor： Toshiyuki AKIYAMA , Shinichiro ISHINO , Yasuhiro SEKIMOTO , Muneharu SATO , Takeshi KAMIYA , Tomohiko ODA , Mineki HASEGAWA , Masakazu TAKATA
Abstract: An organic EL element including an anode, a first functional layer including organic material, disposed above the anode, a second functional layer including organic material, disposed on and in contact with the first functional layer, a light emitting layer disposed on and in contact with the second functional layer, and a cathode disposed above the light emitting layer. A highest occupied molecular orbital (HOMO) level of the organic material of the second functional layer has an energy level at least 0.2 eV lower than that of a HOMO level of the organic material of the first functional layer, and film thickness of the second functional layer is 15 nm or less.
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公开(公告)号：US20210184120A1
公开(公告)日：2021-06-17
申请号：US17121779
申请日：2020-12-15
Applicant: JOLED Inc.
Inventor： Masakazu TAKATA
Abstract: An ink used in forming a functional layer of a self-luminous element by a printing method, the ink including a functional material and a mixed solvent. The mixed solvent includes solvents each having different vapor pressures. The functional material is dissolved or dispersed in the mixed solvent. A solvent that has a lowest vapor pressure among the solvents has a viscosity of at least 53 mPa·s, and a viscosity of the mixed solvent is 15 mPa·s or less.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180138459A1
公开(公告)日：2018-05-17
申请号：US15810436
申请日：2017-11-13
Applicant: JOLED INC.
Inventor： Masakazu TAKATA
CPC classification number: H01L51/56 , H01L27/3211 , H01L51/0005 , H01L51/0026 , H01L51/0028 , H01L51/005 , H01L51/0052 , H01L51/0065 , H01L51/5012 , H01L51/5056 , H01L51/5072
Abstract: There is provided a manufacturing method for an organic electroluminescent panel that includes an organic electroluminescent element for each sub-pixel. The manufacturing method includes an application step of recoating a first organic material layer and a second organic material layer, which include principal components common to each other, to manufacture the organic electroluminescent element. At the application step, after the first organic material layer is applied, an insolubilization process is performed for the first organic material layer to provide a change to a structure of molecules included in the first organic material layer, and the second organic material layer is applied to the first organic material layer after the insolubilization process is performed.
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公开(公告)号：US20170077190A1
公开(公告)日：2017-03-16
申请号：US15309232
申请日：2015-05-21
Applicant: JOLED INC.
Inventor： Jun HASHIMOTO , Hirotaka NANNO , Masakazu TAKATA , Toshiyuki AKIYAMA
CPC classification number: H01L27/3213 , G09F9/30 , H01L27/322 , H01L51/5265 , H01L51/56
Abstract: Pixels include red sub-pixels, green sub-pixels, first blue sub-pixels that emit dark blue light, and second blue sub-pixels that emit light blue light. Above a substrate, first blue pixel electrodes and first blue organic light-emitting layers are layered in regions of the first blue sub-pixels and second blue pixel electrodes and second blue organic light-emitting layers are layered in regions of the second blue sub-pixels. The first blue light-emitting layers and the second blue light-emitting layers are made from the same material. In a direction perpendicular to a top plane of the substrate, a distance between top surfaces of the first blue organic light-emitting layers and top surfaces of the first blue pixel electrodes is less than a distance between top surfaces of the second blue organic light-emitting layers and the surfaces of the second blue pixel electrodes.
Abstract translation: 像素包括红色子像素，绿色子像素，发出深蓝色光的第一蓝色子像素和发出浅蓝色光的第二蓝色子像素。 在基板上方，第一蓝色像素电极和第一蓝色有机发光层被层叠在第一蓝色子像素和第二蓝色像素电极的区域中，第二蓝色有机发光层层叠在第二蓝色子像素电极的区域中， 像素。 第一蓝色发光层和第二蓝色发光层由相同的材料制成。 在垂直于基板的顶面的方向上，第一蓝色有机发光层的顶面与第一蓝色像素电极的顶面之间的距离小于第二蓝色有机发光层的顶面之间的距离， 发光层和第二蓝色像素电极的表面。
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公开(公告)号：US20180233548A1
公开(公告)日：2018-08-16
申请号：US15889631
申请日：2018-02-06
Applicant: JOLED INC.
Inventor： Masakazu TAKATA
CPC classification number: H01L27/3246 , G09G3/3225 , G09G3/3266 , G09G2310/08 , H01L27/3218 , H01L51/0005 , H01L51/5012 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/56 , H01L2227/323
Abstract: An organic electroluminescent panel includes a plurality of pixels and a plurality of banks. The pixels each include a plurality of subpixels. The subpixels each include an organic electroluminescent element that includes a first electrode, a second electrode, and an organic material layer that is provided between the first electrode and the second electrode. The banks define each of the subpixels in each of the pixels. The organic electroluminescent element in each of the subpixels is provided in a gap between adjacent two of the banks, and the following relational expression is satisfied: y≤0.0001714x2+0.0151429x+0.2914286 where y denotes a height, from a bottom surface of the gap, of a pinning position at which a surface of the organic material layer and one of the banks are in contact with each other, and x denotes a width of the bottom surface of the gap.
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公开(公告)号：US20170287993A1
公开(公告)日：2017-10-05
申请号：US15471286
申请日：2017-03-28
Applicant: JOLED INC. , JAPAN DISPLAY INC.
Inventor： Masakazu TAKATA
CPC classification number: H01L27/3246 , H01L27/3211 , H01L51/0005 , H01L51/0012 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092
Abstract: A display panel including a substrate; first, second, and third lower electrodes; first and second column banks; first, second, and third organic light-emitting layers; and an upper electrode. When a first ink for forming the first organic light-emitting layer, a second ink for forming the second organic light-emitting layer, and a third ink for forming the third organic light-emitting layer are applied, ink-separating capability of the first column bank for separating the first ink and the second ink is lower than ink-separating capability of the second column bank for separating the second ink and the third ink, and ink-separating capability depends on: (i) a height of the first and second column banks, or (ii) liquid repellency of the first column bank against the first ink and the second ink and liquid repellency of the second column bank against the second ink and the third ink.
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公开(公告)号：US20170069697A1
公开(公告)日：2017-03-09
申请号：US15309238
申请日：2015-05-21
Applicant: JOLED INC.
Inventor： Jun HASHIMOTO , Hirotaka NANNO , Masakazu TAKATA
IPC: H01L27/32
CPC classification number: H01L27/3246 , H01L27/3216 , H01L27/3218 , H01L2227/323
Abstract: In an organic EL display panel: banks that each extend in the column direction are disposed above a substrate; and red organic light-emitting layers, green organic light-emitting layers, and blue organic light-emitting layers each extend in the column direction and are disposed above the substrate in intervals between adjacent ones of the banks, wherein the banks define edges of sub-pixels of each color in the row direction, and in plan view of the substrate, surface areas of blue sub-pixels are greater than surface areas of red sub-pixels and greater than surface areas of green sub-pixels.
Abstract translation: 在有机EL显示面板中，各列在列方向上延伸设置在基板的上方， 并且红色有机发光层，绿色有机发光层和蓝色有机发光层各自在列方向上延伸并且在相邻的堤之间的间隔中设置在基板上方，其中堤组限定子边缘 在行方向上的每种颜色的像素，并且在基板的平面图中，蓝色子像素的表面积大于红色子像素的表面积，大于绿色子像素的表面积。
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