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公开(公告)号：US10566578B2
公开(公告)日：2020-02-18
申请号：US15450316
申请日：2017-03-06
申请人： Japan Display Inc.
发明人： Shigeru Sakamoto , Hajime Akimoto
摘要： A display device includes a first substrate, a coloring layer formed on the first substrate, a transparent insulating layer having a first refractive index formed on the coloring layer, a first transparent electrode having a higher second refractive index than the first refractive index formed on the transparent insulating layer, an organic layer having a light emitting layer formed on the first transparent electrode, and a second transparent electrode formed on the organic layer.
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公开(公告)号：US10566567B2
公开(公告)日：2020-02-18
申请号：US15848096
申请日：2017-12-20
申请人： Japan Display Inc.
发明人： Yasukazu Kimura , Shigeru Sakamoto
摘要： A display device includes a thin film transistor; a first organic insulating film covering the thin film transistor and containing a resin material; an inorganic insulating film on the first organic insulating film; a pixel electrode electrically connected with the thin film transistor; a second organic insulating film covering an end of the pixel electrode and exposing a top surface of the pixel electrode; and an organic layer provided on the top surface of the pixel electrode and including a light emitting layer. As seen in a plan view, the inorganic insulating film has an opening, overlapping the second organic insulating film, at a position not overlapping an opening provided in the first organic insulating film. The first and second organic insulating films face each other in the opening in the inorganic insulating film, with an oxide conductive film being between the first and second organic insulating films.
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公开(公告)号：US20180204892A1
公开(公告)日：2018-07-19
申请号：US15848088
申请日：2017-12-20
申请人： Japan Display Inc.
发明人： Shigeru Sakamoto , Hajime Akimoto
CPC分类号： H01L27/3246 , H01L27/3211 , H01L51/5203 , H01L51/5262 , H01L51/5271
摘要： A display device includes a plurality of pixel electrodes; a bank having a plurality of openings respectively exposing a part of top surfaces of the plurality of pixel electrodes, a light emitting layer provided on the top surfaces of the plurality of pixel electrodes; and a common electrode covering the bank and the light emitting layer. Where an optical path of light emitted from any light emitting point in the light emitting layer and reflected by a corresponding pixel electrode, among the plurality of pixel electrodes, to return to the light emitting point is a first optical path, and an optical path of light emitted from the light emitting point and reflected by the corresponding pixel electrode to reach the bank is a second optical path, the second optical path has a length that is an integral multiple of a length of the first optical path.
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公开(公告)号：US10541385B2
公开(公告)日：2020-01-21
申请号：US15953528
申请日：2018-04-16
申请人： Japan Display Inc.
发明人： Shigeru Sakamoto
摘要： A display device according to an embodiment of the present invention includes: a substrate; an organic light-emitting diode provided for each pixel on the substrate; an insulating layer that is formed along a boundary of the pixel and has an opening portion in a light-emitting region of the pixel; a first refractive index layer; and a second refractive index layer. The first refractive index layer is disposed on the insulating layer and the organic light-emitting diode, is made of a material having a first refractive index, and has a first recessed portion overlapping with a formation region of the insulating layer in plan view. The second refractive index layer is disposed inside the first recessed portion and is made of a material having a second refractive index lower than the first refractive index.
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公开(公告)号：US10388708B2
公开(公告)日：2019-08-20
申请号：US15848088
申请日：2017-12-20
申请人： Japan Display Inc.
发明人： Shigeru Sakamoto , Hajime Akimoto
摘要： A display device includes a plurality of pixel electrodes; a bank having a plurality of openings respectively exposing a part of top surfaces of the plurality of pixel electrodes, a light emitting layer provided on the top surfaces of the plurality of pixel electrodes; and a common electrode covering the bank and the light emitting layer. Where an optical path of light emitted from any light emitting point in the light emitting layer and reflected by a corresponding pixel electrode, among the plurality of pixel electrodes, to return to the light emitting point is a first optical path, and an optical path of light emitted from the light emitting point and reflected by the corresponding pixel electrode to reach the bank is a second optical path, the second optical path has a length that is an integral multiple of a length of the first optical path.
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公开(公告)号：US09741775B2
公开(公告)日：2017-08-22
申请号：US15139426
申请日：2016-04-27
申请人： Japan Display Inc.
发明人： Shigeru Sakamoto , Masakazu Gunji , Toshihiro Sato
CPC分类号： H01L27/3246 , H01L51/5209
摘要： A display device includes a plurality of pixels on a substrate including an insulating surface. Each of the plurality of pixels includes: a transistor above the insulating surface; a planarization film covering the transistor; a pixel electrode above the planarization film and electrically connected with the transistor; an insulating layer filled in a recess located around the pixel electrode between the pixels adjacent to each other; a light-emitting layer covering a surface of the pixel electrode and at least a part of a surface of the insulating layer; and a counter electrode above the light-emitting layer. A distance between a surface of the substrate and a face of the light-emitting layer in contact with the insulating layer is equal to or smaller than a distance between the surface of the substrate and a face of the light-emitting layer in contact with the pixel electrode.
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公开(公告)号：US09692014B2
公开(公告)日：2017-06-27
申请号：US15059085
申请日：2016-03-02
申请人： Japan Display Inc.
发明人： Ryoichi Ito , Toshihiro Sato , Shigeru Sakamoto
CPC分类号： H01L51/5271 , H01L27/3246 , H01L27/3258 , H01L51/5218 , H01L2251/5315
摘要： A display device includes a substrate; a transistor provided on the substrate; a first insulating film provided on the substrate and the transistor; a second insulating film provided on the first insulating film; an individual pixel electrode provided on the second insulating film; a light emitting layer provided on the individual pixel electrode; a common electrode provided on the light emitting layer; and a contact hole running through the first insulating film and the second insulating film and connecting a source or a drain of the transistor with the pixel electrode. The second insulating film has at least one recessed portion reaching the first insulating film; and the individual pixel electrode is provided along a top surface of the second insulating film and the first recessed portion.
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公开(公告)号：US10121829B2
公开(公告)日：2018-11-06
申请号：US15816246
申请日：2017-11-17
申请人： Japan Display Inc.
发明人： Masato Ito , Shigeru Sakamoto , Koji Yasukawa
摘要： Provided is a display device including first to third pixels and first to fourth cap layers. The first cap layer is located over and overlaps with the first to third light-emitting elements and extends from the first pixel to the third pixel through the second pixel. The second and third cap layers are located over the first cap layer and respectively overlap with the second and third light-emitting elements. The fourth cap layer is located over the first to fourth cap layers. The first to third pixels are arranged in this order. The first to third light-emitting elements are configured so that an emission wavelength of the second light-emitting element is shorter than an emission wavelength of the third light-emitting element and longer than an emission wavelength of the first light-emitting element. A thickness of the third cap layer is larger than a thickness of the second cap layer.
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公开(公告)号：US10101619B2
公开(公告)日：2018-10-16
申请号：US15619651
申请日：2017-06-12
申请人： Japan Display Inc.
摘要： A display device has a transistor including a gate terminal, a first input-output terminal and a second input-output terminal, the gate terminal connected to a scanning signal line and the first input-output terminal connected to a video signal line, a photoconductive element including a first terminal and a second terminal, the first terminal connected to the second input-output terminal of the transistor and the second terminal connected to a first power line, and a light-emitting element including a third terminal and a fourth terminal, the third terminal connected to the second input-output terminal of the transistor and the fourth terminal connected to a second power line.
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公开(公告)号：US09680133B2
公开(公告)日：2017-06-13
申请号：US15364498
申请日：2016-11-30
申请人： Japan Display Inc.
发明人： HaoChun Lee , Toshihiro Sato , Masaya Adachi , Shigeru Sakamoto
IPC分类号： H01L27/00 , H01L51/52 , H01L27/32 , H01L29/786 , H01L33/58
CPC分类号： H01L51/5284 , H01L27/3213 , H01L27/3218 , H01L27/322 , H01L27/3244 , H01L27/3246 , H01L27/3248 , H01L27/326 , H01L27/3272 , H01L29/78633 , H01L33/58 , H01L51/524 , H01L2924/12041
摘要： A display device includes a plurality of pixels each including a light emitting region; and a light blocking layer provided on a side of the plurality of pixels on which light is output. In each of the plurality pixels, the light blocking layer has a plurality of openings allowing light from the light emitting region to be output. In one embodiment, in the light blocking layer, the openings adjacent to each other may be located line-symmetrically. In one embodiment, in the light blocking layer, the openings adjacent to each other may be located point-symmetrically.
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