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公开(公告)号：US11251230B2
公开(公告)日：2022-02-15
申请号：US17003021
申请日：2020-08-26
Applicant: Japan Display Inc.
Inventor： Hironori Toyoda , Norihisa Maeda
Abstract: An organic EL display device includes at least one light emitting unit that includes a first electrode, an organic film that includes a light emitting layer and is provided over the first electrode, and a second electrode that is provided over the organic film and transmits light from the light emitting layer, and an optical adjusting layer that covers the at least one light emitting unit. The optical adjusting layer in a first area that overlaps the at least one light emitting unit in a planar view and the optical adjusting layer in at least one second area that is adjacent to the first area are different from each other in at least one of a number of layers that the optical adjusting layer includes, a film thickness, and a refractive index.
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公开(公告)号：US10043995B2
公开(公告)日：2018-08-07
申请号：US15881160
申请日：2018-01-26
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Hironori Toyoda
CPC classification number: H01L51/5246 , H01L27/3211 , H01L27/3213 , H01L27/3246 , H01L27/3248 , H01L27/3251 , H01L27/3258 , H01L27/3276 , H01L51/504 , H01L51/5044 , H01L51/5221 , H01L51/5234 , H01L51/5243 , H01L51/5253 , H01L51/5256 , H01L51/5284 , H01L2251/301 , H01L2251/558
Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area; a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light-emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.
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公开(公告)号：US09692001B2
公开(公告)日：2017-06-27
申请号：US14838495
申请日：2015-08-28
Applicant: Japan Display Inc.
Inventor： Hironori Toyoda , Toshihiro Sato
CPC classification number: H01L51/504 , H01L27/3206 , H01L51/502
Abstract: The display device includes a first organic electroluminescence element which includes an anode and a cathode which form a pair, and a light emitting layer which is formed between the anode and the cathode on a substrate. The light emitting layer includes a plurality of sub-light emitting layers which perform light emitting of colors which are respectively different. Each of the plurality of sub-light emitting layers is doped with a quantum dot light emitting material corresponding to a color to be emitted. A current with current density corresponding to a position of a sub-light emitting layer of a desired color among the plurality of sub-light emitting layers is injected to the light emitting layer, and the sub-light emitting layer of the desired color performs light emitting.
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公开(公告)号：US09614011B2
公开(公告)日：2017-04-04
申请号：US14978639
申请日：2015-12-22
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Hironori Toyoda , Jun Fujiyoshi
CPC classification number: H01L27/322 , H01L27/3218 , H01L27/3246 , H01L27/3248 , H01L27/3262 , H01L33/10 , H01L51/5036 , H01L51/5206 , H01L51/5221 , H01L51/5228 , H01L51/5234 , H01L51/5246 , H01L51/5253 , H01L51/5271 , H01L51/5284 , H01L2251/301 , H01L2251/305 , H01L2251/308 , H01L2251/5307
Abstract: There is provided an EL display device of a color filter system which obtains sufficient brightness and contrast while making it difficult to generate a color mixture even if pixels become fine. An EL display device 100 according to the present invention includes a first substrate 1, a circuit layer 2 formed on the first substrate 1, a color selection reflection layer 11 formed in an upper layer of the circuit layer 2, lower electrodes 5 formed in an upper layer of the color selection reflection layer 11, a white light emission EL layer 7 formed in an upper layer of the lower electrodes 5, an upper electrode 8 formed in an upper layer of the EL layer 7, and a sealing layer 9 formed in an upper layer of the upper electrode 8.
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公开(公告)号：US09515132B2
公开(公告)日：2016-12-06
申请号：US15073857
申请日：2016-03-18
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Hironori Toyoda , Takeshi Ookawara
CPC classification number: H01L27/3279 , H01L27/322 , H01L27/3246 , H01L51/0015 , H01L51/5243 , H01L2227/323
Abstract: A substrate on which a plurality of pixel electrodes are disposed is prepared. An organic electroluminescent film 22 is formed with the inclusion of a common layer that continuously covers the plural pixel electrodes. A common electrode is formed on the organic electroluminescent film. The common layer is irradiated with an energy ray above areas between the respective adjacent pixel electrodes with the avoidance of irradiation above the plural pixel electrodes. An electric conductivity of the common layer is reduced above the areas between the respective adjacent pixel electrodes, by irradiation of the energy ray. With this configuration, a current leakage can be prevented between the adjacent pixels.
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Patent Agency Ranking
公开(公告)号：US09287526B2
公开(公告)日：2016-03-15
申请号：US14501094
申请日：2014-09-30
Applicant: Japan Display Inc.
Inventor： Toshio Miyazawa , Mitsuhide Miyamoto , Hironori Toyoda , Kouhei Takahashi , Masumi Nishimura
IPC: H01L51/52
CPC classification number: H01L51/5271 , H01L2251/5315
Abstract: In an organic EL display device having plural organic EL elements each including an organic light emitting layer, an upper electrode formed on an upper side of the organic light emitting layer, and a reflective layer formed on a lower side of the organic light emitting layer, in which an image is displayed on a side of the organic light emitting layer on which the upper electrode is formed. The reflective layer in each of the organic EL elements includes a first plane, a second plane formed on a side lower than the first plane; and an inclined plane formed between the first plane and the second plane, and linearly inclined at a given angle equal to or higher than 35°, and equal to or lower than 55°.
Abstract translation: 在具有多个有机EL元件的有机EL显示器件中，每个有机EL元件包括有机发光层，形成在有机发光层上侧的上电极和形成在有机发光层下侧的反射层， 其中在其上形成有上电极的有机发光层的一侧上显示图像。 每个有机EL元件中的反射层包括第一平面，在比第一平面低的一侧形成的第二平面; 以及形成在第一平面和第二平面之间的倾斜平面，并且以等于或高于35°，等于或小于55°的给定角度线性倾斜。
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公开(公告)号：US11711939B2
公开(公告)日：2023-07-25
申请号：US17468999
申请日：2021-09-08
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Hironori Toyoda
IPC: H01L51/52 , H01L27/32 , H01L51/50 , H10K50/842 , H10K50/13 , H10K50/82 , H10K50/828 , H10K50/86 , H10K50/844 , H10K59/35 , H10K59/127 , H10K59/131 , H10K59/122 , H10K59/123 , H10K59/124 , H10K102/00
CPC classification number: H10K50/8426 , H10K50/13 , H10K50/82 , H10K50/828 , H10K50/8423 , H10K50/8445 , H10K50/865 , H10K59/127 , H10K59/131 , H10K59/35 , H10K59/351 , H10K50/131 , H10K50/844 , H10K59/122 , H10K59/123 , H10K59/124 , H10K2102/00 , H10K2102/351
Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area; a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light-emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.
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8.发明授权公开(公告)号：US11145841B2
公开(公告)日：2021-10-12
申请号：US16505892
申请日：2019-07-09
Applicant: Japan Display Inc.
Inventor： Toshihiro Sato , Hironori Toyoda
Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area; a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light-emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.
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公开(公告)号：US10454055B2
公开(公告)日：2019-10-22
申请号：US15938045
申请日：2018-03-28
Applicant: Japan Display Inc.
Inventor： Hironori Toyoda
Abstract: To provide a display device including a plurality of pixels; a light emitting element layer formed across the plurality of pixels; and a bank formed so as to separately define adjacent pixels among the plurality of pixels, wherein the light emitting element layer includes a p-doped hole transport layer containing p-dopant, and the p-doped hole transport layer is formed on each of the pixels such that the p-doped hole transport layers on the respective adjacent pixels are separated from each other on the bank.
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公开(公告)号：US10224509B2
公开(公告)日：2019-03-05
申请号：US15657954
申请日：2017-07-24
Applicant: Japan Display Inc.
Inventor： Hironori Toyoda
Abstract: A display device includes a light emitting device layer including a light emitting layer, a light-transmissive upper electrode on the light emitting device layer, a lower electrode having light transmittance and moisture permeability under the light emitting device layer, a light reflection layer under the lower electrode, and a hygroscopic layer having a hygroscopic property between the lower electrode and the light reflection layer.
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