Patents by Inventor Youhei Iwai
Youhei Iwai 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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Publication number: 20240103326Abstract: Provided is a mounting structure for a transparent liquid crystal display device that is placed in a glass window in which a periphery of a first glass plate is accommodated in and held by a first frame member. In the mounting structure, the transparent liquid crystal display device is affixed to the first glass plate by a transparent adhesive sheet and has a display region and a terminal region. The terminal region is accommodated in the first frame member, and a light source including an LED and a driver IC are placed in the terminal region. A heat conduction sheet is placed between the light source and the driver IC on one hand and the first frame member on the other hand and is acted upon by pressure by which the heat conduction sheet is pressed against the light source and the driver IC.Type: ApplicationFiled: September 22, 2023Publication date: March 28, 2024Inventor: Youhei IWAI
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Publication number: 20230380063Abstract: To mitigate a bending stress in the flexible wiring substrate in a structure, a display panel, to which the flexible wiring substrate connects, is curved along a first direction, and the flexible wiring is bent back to the rear of the display panel. The flexible wiring substrate connects with the display panel at a first region and at a second region; the flexible wiring substrate connects with the wiring substrate at a third region and at a fourth region. The flexible wiring substrate has a narrowest width in the first direction at an intermediate region between the display panel and the wiring substrate. A first wiring group in the flexible wiring substrate connects the first region with the third region or the fourth region, a second wiring group in the flexible wiring substrate connects the second region with another one of the third region or the fourth region.Type: ApplicationFiled: August 3, 2023Publication date: November 23, 2023Inventors: Youhei IWAI, Hideaki ABE
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Patent number: 11762227Abstract: The purpose is to form images in a middle of a transparent media. Accordingly, the present invention has a structure as follows. A display device including: a plate shaped display medium, having a first major surface and a second major surface, disposed on the pedestal, in which the display medium includes the liquid crystal display panel, disposed in a first transparent medium of refractive index n1, first LEDs, which supply light to the liquid crystal display panel, are disposed in the pedestal, a second transparent medium of refractive index n2 exists between the first LEDs and the liquid crystal display panel, and n2>n1.Type: GrantFiled: July 12, 2021Date of Patent: September 19, 2023Assignee: Japan Display Inc.Inventors: Youhei Iwai, Michiaki Sakamoto
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Patent number: 11765829Abstract: To mitigate a bending stress in the flexible wiring substrate in a structure, a display panel, to which the flexible wiring substrate connects, is curved along a first direction, and the flexible wiring is bent back to the rear of the display panel. The flexible wiring substrate connects with the display panel at a first region and at a second region; the flexible wiring substrate connects with the wiring substrate at a third region and at a fourth region. The flexible wiring substrate has a narrowest width in the first direction at an intermediate region between the display panel and the wiring substrate. A first wiring group in the flexible wiring substrate connects the first region with the third region or the fourth region, a second wiring group in the flexible wiring substrate connects the second region with another one of the third region or the fourth region.Type: GrantFiled: July 2, 2021Date of Patent: September 19, 2023Assignee: Japan Display Inc.Inventors: Youhei Iwai, Hideaki Abe
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Patent number: 11665822Abstract: An electronic device comprising: a substrate having a curved surface, a printed circuit board, and plural flexible wiring substrates, each of two of the plural flexible substrates has a terminal portion that is connected to the curved surface, the printed circuit board has a cutout between the two flexible wiring substrates.Type: GrantFiled: January 4, 2022Date of Patent: May 30, 2023Assignee: Japan Display Inc.Inventors: Youhei Iwai, Hideaki Abe
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Publication number: 20220358866Abstract: According to one embodiment, a flexible substrate includes a first protective member including a first surface, a line portion including a flexible insulating base located on the first surface and a wiring layer disposed on the insulating base and a second protective member covering the line portion, and the first protective member includes a valley portion and a peak portion in the first surface, and the line portion is formed in a wavy shape and located on the valley portion and the peak portion.Type: ApplicationFiled: July 21, 2022Publication date: November 10, 2022Applicant: Japan Display Inc.Inventors: Youhei IWAI, Takumi SANO
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Patent number: 11480838Abstract: The purpose of the invention is to realize the display whose screen is seen as floating in the transparent medium. The present invention, for example, takes a following structure. A display device including a transparent display device being fixed in a pedestal including: the transparent display device having a display area and a first transparent medium, the first transparent medium existing between the display area and the pedestal, in which scanning lines and video signal lines are formed in the display area, scanning line lead wires and video signal lead wires are formed in the first transparent medium, and provided an area of the display area is S1, and an area of the first transparent medium is S2, S2/S1 is 0.5 or more.Type: GrantFiled: August 26, 2021Date of Patent: October 25, 2022Assignee: Japan Display Inc.Inventor: Youhei Iwai
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Publication number: 20220334427Abstract: A power supplying structure for a transparent liquid crystal display device attached to a glass slide window which has a window glass and a first frame surrounding the window glass; the glass slide window is disposed in a window frame; in which a display area of the transparent liquid crystal display device overlaps the window glass; an external dimension of the display area of the transparent liquid crystal display device is smaller than an external dimension of the window glass; a light source for supplying light to the display area, a terminal area of the transparent liquid crystal display device, a wiring substrate, and a cable connected to the wiring substrate are housed in the first frame; the cable is connected to a receiving terminal formed in the frame; the receiving terminal can be connected to a power supplying terminal; the power supplying terminal is connected to a power source.Type: ApplicationFiled: March 23, 2022Publication date: October 20, 2022Applicant: Japan Display Inc.Inventor: Youhei IWAI
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Patent number: 11342300Abstract: The purpose of the invention is to counter measure a disconnection between the driver IC and the terminal when the terminal area of the electronic device is curved. One of the structures is as follows. An electronic device comprising: a driver IC installed in a terminal area, the terminal area being curved, wherein the driver IC has a circuit and plural bumps, the driver IC has a tapered portion formed on an opposite surface from a surface that the plural bumps are formed, the tapered portion overlaps with an outer most bump of the plural bumps.Type: GrantFiled: August 25, 2020Date of Patent: May 24, 2022Assignee: JAPAN DISPLAY INC.Inventors: Youhei Iwai, Hideaki Abe
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Publication number: 20220132667Abstract: An electronic device comprising: a substrate having a curved surface, a printed circuit board, and plural flexible wiring substrates, each of two of the plural flexible substrates has a terminal portion that is connected to the curved surface, the printed circuit board has a cutout between the two flexible wiring substrates.Type: ApplicationFiled: January 4, 2022Publication date: April 28, 2022Inventors: Youhei IWAI, Hideaki ABE
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Patent number: 11252819Abstract: An electronic device comprising: a substrate having a curved surface, a printed circuit board, and plural flexible wiring substrates, each of two of the plural flexible substrates has a terminal portion that is connected to the curved surface, the printed circuit board has a cutout between the two flexible wiring substrates.Type: GrantFiled: June 11, 2020Date of Patent: February 15, 2022Assignee: Japan Display Inc.Inventors: Youhei Iwai, Hideaki Abe
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Publication number: 20210382363Abstract: The purpose of the invention is to realize the display whose screen is seen as floating in the transparent medium. The present invention, for example, takes a following structure. A display device including a transparent display device being fixed in a pedestal including: the transparent display device having a display area and a first transparent medium, the first transparent medium existing between the display area and the pedestal, in which scanning lines and video signal lines are formed in the display area, scanning line lead wires and video signal lead wires are formed in the first transparent medium, and provided an area of the display area is S1, and an area of the first transparent medium is S2, S2/S1 is 0.5 or more.Type: ApplicationFiled: August 26, 2021Publication date: December 9, 2021Inventor: Youhei Iwai
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Publication number: 20210341810Abstract: The purpose is to form images in a middle of a transparent media. Accordingly, the present invention has a structure as follows. A display device including: a plate shaped display medium, having a first major surface and a second major surface, disposed on the pedestal, in which the display medium includes the liquid crystal display panel, disposed in a first transparent medium of refractive index n1, first LEDs, which supply light to the liquid crystal display panel, are disposed in the pedestal, a second transparent medium of refractive index n2 exists between the first LEDs and the liquid crystal display panel, and n2>n1.Type: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Inventors: Youhei IWAI, Michiaki SAKAMOTO
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Publication number: 20210337667Abstract: To mitigate a bending stress in the flexible wiring substrate in a structure, a display panel, to which the flexible wiring substrate connects, is curved along a first direction, and the flexible wiring is bent back to the rear of the display panel. The flexible wiring substrate connects with the display panel at a first region and at a second region; the flexible wiring substrate connects with the wiring substrate at a third region and at a fourth region. The flexible wiring substrate has a narrowest width in the first direction at an intermediate region between the display panel and the wiring substrate. A first wiring group in the flexible wiring substrate connects the first region with the third region or the fourth region, a second wiring group in the flexible wiring substrate connects the second region with another one of the third region or the fourth region.Type: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Inventors: Youhei IWAI, Hideaki Abe
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Publication number: 20210066238Abstract: The purpose of the invention is to counter measure a disconnection between the driver IC and the terminal when the terminal area of the electronic device is curved. One of the structures is as follows. An electronic device comprising: a driver IC installed in a terminal area, the terminal area being curved, wherein the driver IC has a circuit and plural bumps, the driver IC has a tapered portion formed on an opposite surface from a surface that the plural bumps are formed, the tapered portion overlaps with an outer most bump of the plural bumps.Type: ApplicationFiled: August 25, 2020Publication date: March 4, 2021Applicant: Japan Display Inc.Inventors: Youhei IWAI, Hideaki ABE
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Publication number: 20200413539Abstract: An electronic device comprising: a substrate having a curved surface, a printed circuit board, and plural flexible wiring substrates, each of two of the plural flexible substrates has a terminal portion that is connected to the curved surface, the printed circuit board has a cutout between the two flexible wiring substrates.Type: ApplicationFiled: June 11, 2020Publication date: December 31, 2020Inventors: Youhei IWAI, Hideaki ABE
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Patent number: 8866993Abstract: In a liquid crystal display device having a display region defined by an area where a TFT substrate and an opposing substrate are superposed on each other, the present invention realizes a structure for avoiding breakage of a mechanically weak terminal section where the TFT substrate only extends. The terminal section where the TFT substrate only extends is mounted on a resin mold. Inside the resin mold, partition walls are formed to accommodate LEDs. By providing two partition walls in a pair at least in a center portion, an external pressure exerted on the center portion of the resin mold is distributed between the two partition walls and a maximum stress exerted on the terminal section of the TFT substrate is reduced.Type: GrantFiled: January 18, 2012Date of Patent: October 21, 2014Assignee: Japan Display Inc.Inventors: Tomio Yaguchi, Youhei Iwai, Hideyuki Ohsaka
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Publication number: 20120188484Abstract: In a liquid crystal display device having a display region defined by an area where a TFT substrate and an opposing substrate are superposed on each other, the present invention realizes a structure for avoiding breakage of a mechanically weak terminal section where the TFT substrate only extends. The terminal section where the TFT substrate only extends is mounted on a resin mold. Inside the resin mold, partition walls are formed to accommodate LEDs. By providing two partition walls in a pair at least in a center portion, an external pressure exerted on the center portion of the resin mold is distributed between the two partition walls and a maximum stress exerted on the terminal section of the TFT substrate is reduced.Type: ApplicationFiled: January 18, 2012Publication date: July 26, 2012Inventors: Tomio Yaguchi, Youhei Iwai, Hideyuki Ohsaka