Patents by Inventor Masakazu KAIDA
Masakazu KAIDA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11974467Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: GrantFiled: December 13, 2021Date of Patent: April 30, 2024Assignee: Japan Display Inc.Inventors: Kenta Kajiyama, Masakazu Kaida
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Publication number: 20220102451Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: ApplicationFiled: December 13, 2021Publication date: March 31, 2022Inventors: Kenta KAJIYAMA, Masakazu KAIDA
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Patent number: 11217644Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: GrantFiled: October 28, 2019Date of Patent: January 4, 2022Assignee: Japan Display Inc.Inventors: Kenta Kajiyama, Masakazu Kaida
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Patent number: 10665813Abstract: Disclosed is a display device having a pixel including a pixel electrode, an electroluminescence layer over the pixel electrode, and an opposing electrode over the electroluminescence layer. The pixel electrode possesses: a first conductive layer including a conductive oxide containing indium and zinc; a second conductive layer over the first conductive layer, the second conductive layer containing silver; and a third conductive layer over the second conductive layer, the third conductive layer including a conductive oxide containing indium and tin. A thickness of the first conductive layer is equal to or more than twice a thickness of the third conductive layer and equal to or less than five times the thickness of the third conductive layer.Type: GrantFiled: August 12, 2019Date of Patent: May 26, 2020Assignee: Japan Display Inc.Inventors: Noriyoshi Kanda, Masakazu Kaida
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Publication number: 20200058720Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Inventors: Kenta KAJIYAMA, Masakazu KAIDA
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Patent number: 10497766Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: GrantFiled: November 16, 2017Date of Patent: December 3, 2019Assignee: Japan Display Inc.Inventors: Kenta Kajiyama, Masakazu Kaida
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Publication number: 20190363278Abstract: Disclosed is a display device having a pixel including a pixel electrode, an electroluminescence layer over the pixel electrode, and an opposing electrode over the electroluminescence layer. The pixel electrode possesses: a first conductive layer including a conductive oxide containing indium and zinc; a second conductive layer over the first conductive layer, the second conductive layer containing silver; and a third conductive layer over the second conductive layer, the third conductive layer including a conductive oxide containing indium and tin. A thickness of the first conductive layer is equal to or more than twice a thickness of the third conductive layer and equal to or less than five times the thickness of the third conductive layer.Type: ApplicationFiled: August 12, 2019Publication date: November 28, 2019Inventors: Noriyoshi KANDA, Masakazu KAIDA
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Publication number: 20180083079Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: ApplicationFiled: November 16, 2017Publication date: March 22, 2018Inventors: Kenta KAJIYAMA, Masakazu KAIDA
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Patent number: 9899623Abstract: A display device a display region arranged with a plurality of pixels in a matrix shape, wherein each of the plurality of pixels includes a first electrode including a first conducting layer on the first conducting layer and comprised from Mo or a Mo alloy, a second conducting layer comprised from Ag or an Ag alloy, and a third conducting layer on the second conducting layer and comprised from a metal oxide having conducting properties, the first electrode being arranged corresponding to each of the pixels respectively, a light emitting layer above the third conducting layer and emitting light according to a current supply, and a second electrode above the light emitting layer and allowing at least a part of the light from the light emitting layer to pass through.Type: GrantFiled: August 24, 2016Date of Patent: February 20, 2018Assignee: Japan Display Inc.Inventors: Masakazu Kaida, Noriyoshi Kanda, Hirohisa Tanaka
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Patent number: 9865834Abstract: A method of manufacturing a display device includes forming a three-layer laminate by laminating a first transparent conductive film, a metal film, and a second transparent conductive film in order from a substrate side. The three-layer laminate forms a plurality of anode electrodes arranged in a pixel region and a plurality of dummy electrodes arranged on an outer side of the pixel region. The method of manufacturing a display device also includes subjecting the second transparent conductive film and the metal film to etching and subjecting the first transparent conductive film to etching. A density of a pattern of the plurality of dummy electrodes is reduced as a distance from the pixel region is increased.Type: GrantFiled: April 6, 2016Date of Patent: January 9, 2018Assignee: Japan Display Inc.Inventors: Noriyoshi Kanda, Masakazu Kaida
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Patent number: 9853094Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: GrantFiled: March 17, 2016Date of Patent: December 26, 2017Assignee: Japan Display Inc.Inventors: Kenta Kajiyama, Masakazu Kaida
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Patent number: 9773992Abstract: An organic EL display device includes in order from a substrate side: a metal layer; an insulating layer formed on the metal layer; a first electrode layer formed on the insulating layer; an organic layer formed on the first electrode layer; and a second electrode layer formed on the organic layer. The metal layer is for use as a reflective layer configured to reflect, on a surface of the metal layer, light generated from the organic layer by applying a voltage between the first electrode layer and the second electrode layer.Type: GrantFiled: April 6, 2016Date of Patent: September 26, 2017Assignee: Japan Display Inc.Inventors: Satoshi Maruyama, Masakazu Kaida, Hirohisa Tanaka, Takanobu Takenaka, Noriyoshi Kanda
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Publication number: 20170077437Abstract: A display device a display region arranged with a plurality of pixels in a matrix shape, wherein each of the plurality of pixels includes a first electrode including a first conducting layer on the first conducting layer and comprised from Mo or a Mo alloy, a second conducting layer comprised from Ag or an Ag alloy, and a third conducting layer on the second conducting layer and comprised from a metal oxide having conducting properties, the first electrode being arranged corresponding to each of the pixels respectively, a light emitting layer above the third conducting layer and emitting light according to a current supply, and a second electrode above the light emitting layer and allowing at least a part of the light from the light emitting layer to pass through.Type: ApplicationFiled: August 24, 2016Publication date: March 16, 2017Inventors: Masakazu KAIDA, Noriyoshi KANDA, Hirohisa TANAKA
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Publication number: 20160315130Abstract: A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.Type: ApplicationFiled: March 17, 2016Publication date: October 27, 2016Inventors: Kenta KAJIYAMA, Masakazu KAIDA
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Publication number: 20160293878Abstract: An organic EL display device includes in order from a substrate side: a metal layer; an insulating layer formed on the metal layer; a first electrode layer formed on the insulating layer; an organic layer formed on the first electrode layer; and a second electrode layer formed on the organic layer. The metal layer is for use as a reflective layer configured to reflect, on a surface of the metal layer, light generated from the organic layer by applying a voltage between the first electrode layer and the second electrode layer.Type: ApplicationFiled: April 6, 2016Publication date: October 6, 2016Inventors: Satoshi MARUYAMA, Masakazu KAIDA, Hirohisa TANAKA, Takanobu TAKENAKA, Noriyoshi KANDA
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Publication number: 20160293903Abstract: A method of manufacturing a display device includes forming a three-layer laminate by laminating a first transparent conductive film, a metal film, and a second transparent conductive film in order from a substrate side. The three-layer laminate forms a plurality of anode electrodes arranged in a pixel region and a plurality of dummy electrodes arranged on an outer side of the pixel region. The method of manufacturing a display device also includes subjecting the second transparent conductive film and the metal film to etching and subjecting the first transparent conductive film to etching. A density of a pattern of the plurality of dummy electrodes is reduced as a distance from the pixel region is increased.Type: ApplicationFiled: April 6, 2016Publication date: October 6, 2016Inventors: Noriyoshi KANDA, Masakazu KAIDA