Patents by Inventor Ritsuko Nagao
Ritsuko Nagao 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: 11387263Abstract: An object of the present invention is to decrease substantial resistance of art electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive, film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive, material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: August 7, 2019Date of Patent: July 12, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Publication number: 20200035708Abstract: An object of the present invention is to decrease substantial resistance of art electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive, film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive, material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: ApplicationFiled: August 7, 2019Publication date: January 30, 2020Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 10381385Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: June 4, 2018Date of Patent: August 13, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Publication number: 20180286887Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: ApplicationFiled: June 4, 2018Publication date: October 4, 2018Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 9997542Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: February 12, 2016Date of Patent: June 12, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Publication number: 20160247826Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: ApplicationFiled: February 12, 2016Publication date: August 25, 2016Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 9261722Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: June 17, 2014Date of Patent: February 16, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Publication number: 20140293207Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 8759835Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: May 10, 2011Date of Patent: June 24, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 8674908Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: GrantFiled: March 7, 2012Date of Patent: March 18, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anzai, Yu Yamazaki, Yoshifumi Tanada
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Patent number: 8609181Abstract: It is an object of the present invention to provide a method for fabricating a light emitting device, in which brightness gradient due to potential drop of a counter electrode can be prevented from being observed and an auxiliary electrode can be formed without increasing the number of steps, even when the precision of a light emitting device is improved. It is another object of the invention to provide a light emitting device fabricated according to the method. The light emitting device has a light emitting element and an auxiliary electrode in each pixel. The light emitting element includes a first electrode, a second electrode, an electroluminescent layer provided between the first and the second electrodes. Further, the first electrode is overlapped with the electroluminescent layer and the second electrode formed over an insulating film by means of a first opening formed in the insulating film.Type: GrantFiled: July 23, 2009Date of Patent: December 17, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Ritsuko Nagao, Yasuo Nakamura
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Publication number: 20120162051Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: ApplicationFiled: March 7, 2012Publication date: June 28, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anzai, Yu Yamazaki, Yoshifumi Tanada
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Patent number: 8139001Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: GrantFiled: August 17, 2011Date of Patent: March 20, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anzai, Yu Yamazaki, Yoshifumi Tanada
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Publication number: 20110298362Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: ApplicationFiled: August 17, 2011Publication date: December 8, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anzai, Yu Yamazaki, Yoshifumi Tanada
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Patent number: 8018403Abstract: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.Type: GrantFiled: July 6, 2007Date of Patent: September 13, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Sakakura, Ritsuko Nagao, Mitsuaki Osame, Aya Anazai, Yu Yamazaki, Yoshifumi Tanada
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Publication number: 20110210335Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: ApplicationFiled: May 10, 2011Publication date: September 1, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 7943938Abstract: An object of the present invention is to decrease substantial resistance of an electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive material than the resistance of an electrode and a wiring that is required to reduce the resistance.Type: GrantFiled: January 5, 2007Date of Patent: May 17, 2011Assignee: Semiconductor Energy LaboratoryInventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
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Patent number: 7709894Abstract: A method for manufacturing a semiconductor device having a circuit made up by a TFT (Thin Film Transistor) having GOLD (Gate-Drain Overlapped LDD) structure, which an LDD region overlaps which a portion of a gate electrode, wherein the formation of a concentration depth profile peak of hydrogen in a semiconductor film is avoided to thereby improve the electrical characteristics of the TFT. The use of the semiconductor film manufactured in this manner allows manufacturing of a semiconductor device with good electrical characteristics only by hydrogenating treatment even when the activation of impurity elements does not carried out.Type: GrantFiled: December 15, 2006Date of Patent: May 4, 2010Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masayuki Kajiwara, Ritsuko Nagao
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Publication number: 20090286445Abstract: It is an object of the present invention to provide a method for fabricating a light emitting device, in which brightness gradient due to potential drop of a counter electrode can be prevented from being observed and an auxiliary electrode can be formed without increasing the number of steps, even when the precision of a light emitting device is improved. It is another object of the invention to provide a light emitting device fabricated according to the method. The light emitting device has a light emitting element and an auxiliary electrode in each pixel. The light emitting element includes a first electrode, a second electrode, an electroluminescent layer provided between the first and the second electrodes. Further, the first electrode is overlapped with the electroluminescent layer and the second electrode formed over an insulating film by means of a first opening formed in the insulating film.Type: ApplicationFiled: July 23, 2009Publication date: November 19, 2009Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Shunpei Yamazaki, Ritsuko Nagao, Yasuo Nakamura
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Patent number: 7579774Abstract: It is an object of the present invention to provide a method for fabricating a light emitting device, in which brightness gradient due to potential drop of a counter electrode can be prevented from being observed and an auxiliary electrode can be formed without increasing the number of steps, even when the precision of a light emitting device is improved. It is another object of the invention to provide a light emitting device fabricated according to the method. The light emitting device has a light emitting element and an auxiliary electrode in each pixel. The light emitting element includes a first electrode, a second electrode, an electroluminescent layer provided between the first and the second electrodes. Further, the first electrode is overlapped with the electroluminescent layer and the second electrode formed over an insulating film by means of a first opening formed in the insulating film.Type: GrantFiled: May 8, 2007Date of Patent: August 25, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Ritsuko Nagao, Yasuo Nakamura