Patents by Inventor Tomio Yaguchi
Tomio Yaguchi 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: 8797471Abstract: A liquid crystal display device includes a first substrate and a second substrate which sandwiches a liquid crystal between itself and the first substrate, wherein the first substrate has thin film transistors and a wiring connection portion in which are formed terminals connected to the thin film transistors, a wiring substrate connected to the terminals is disposed in the wiring connection portion, the second substrate is a plastic substrate, and has an adhesive layer and an inorganic insulating layer formed on top of the adhesive layer, and the adhesive layer covers the wiring connection portion and one portion of the wiring substrate.Type: GrantFiled: March 15, 2013Date of Patent: August 5, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hitoshi Azuma, Susumu Sasaki, Tomio Yaguchi, Takao Ebine, Katsuyuu Takahashi, Shoichi Uchino, Akiko Iwata
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Patent number: 8755012Abstract: A display device includes a plastic substrate and a thin film transistor layer including at least one thin film transistor. The thin film transistor layer is disposed on the plastic substrate via a resin film having no viscosity or adhesion and an adhesive film. The resin film has a first surface formed on a first surface of the thin film transistor layer, the first surface of the thin film transistor layer being at one side of the plastic substrate, and the adhesive film is formed on a second surface of the resin film, the second surface of the resin film being at the one side of the plastic substrate, and the resin film is attached to the plastic substrate by the adhesive film.Type: GrantFiled: April 10, 2013Date of Patent: June 17, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yasushi Nakano, Hitoshi Azuma, Tomio Yaguchi
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Patent number: 8692970Abstract: Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.Type: GrantFiled: November 10, 2010Date of Patent: April 8, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shoichi Uchino, Noboru Kunimatsu, Hidehiro Sonoda, Chikae Matsui, Yuko Matsumoto, Tomio Yaguchi, Toshiki Kaneko, Jun Tanaka
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Publication number: 20130242249Abstract: A liquid crystal display device includes a first substrate and a second substrate which sandwiches a liquid crystal between itself and the first substrate, wherein the first substrate has thin film transistors and a wiring connection portion in which are formed terminals connected to the thin film transistors, a wiring substrate connected to the terminals is disposed in the wiring connection portion, the second substrate is a plastic substrate, and has an adhesive layer and an inorganic insulating layer formed on top of the adhesive layer, and the adhesive layer covers the wiring connection portion and one portion of the wiring substrate.Type: ApplicationFiled: March 15, 2013Publication date: September 19, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Display, Ltd.Inventors: Hitoshi AZUMA, Susumu SASAKI, Tomio YAGUCHI, Takao EBINE, Katsuyuu TAKAHASHI, Shoichi UCHINO, Akiko IWATA
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Publication number: 20130229601Abstract: A display device includes a plastic substrate and a thin film transistor layer including at least one thin film transistor. The thin film transistor layer is disposed on the plastic substrate via a resin film having no viscosity or adhesion and an adhesive film. The resin film has a first surface formed on a first surface of the thin film transistor layer, the first surface of the thin film transistor layer being at one side of the plastic substrate, and the adhesive film is formed on a second surface of the resin film, the second surface of the resin film being at the one side of the plastic substrate, and the resin film is attached to the plastic substrate by the adhesive film.Type: ApplicationFiled: April 10, 2013Publication date: September 5, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display East, Inc.Inventors: Yasushi Nakano, Hitoshi Azuma, Tomio Yaguchi
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Patent number: 8416356Abstract: A liquid crystal display device includes a first substrate and a second substrate which sandwiches a liquid crystal between itself and the first substrate, wherein the first substrate has thin film transistors and a wiring connection portion in which are formed terminals connected to the thin film transistors, a wiring substrate connected to the terminals is disposed in the wiring connection portion, the second substrate is a plastic substrate, and has an adhesive layer and an inorganic insulating layer formed on top of the adhesive layer, and the adhesive layer covers the wiring connection portion and one portion of the wiring substrate.Type: GrantFiled: January 16, 2009Date of Patent: April 9, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hitoshi Azuma, Susumu Sasaki, Tomio Yaguchi, Takao Ebine, Katsuyuu Takahashi, Shoichi Uchino, Akiko Iwata
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Patent number: 8345203Abstract: A display device includes: a substrate; a plurality of pixels which are mounted on the substrate, each pixel including a pixel electrode; and switching elements which are mounted on the substrate, each switching element being connected to the pixel electrode. The substrate includes: a flexible insulation substrate; a first insulation layer which is formed over the insulation substrate and includes a plurality of insulation films which are spaced apart from each other, and the switching element is formed on any one of the respective insulation films. The display device can enhance flexibility thereof while forming relatively hard background films thereon.Type: GrantFiled: November 27, 2009Date of Patent: January 1, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tomio Yaguchi, Yasushi Nakano, Tetsuya Nagata
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Patent number: 8310614Abstract: A liquid crystal display device preventing a liquid crystal display panel from damage by bending of a light-transmissive substrate and capable of curving a display surface of the panel is provided. The liquid crystal display device comprising: a liquid crystal display panel having a liquid crystal layer sealed between a pair of light-transmissive substrates having pixel formation electrodes on inner surfaces thereof, and formed by assembling positive and negative curved surfaces with respect to one direction; a backlight mounted on a rear surface of the panel along a curved shape of the panel and having at least one light emission device irradiating illumination light toward the rear surface; and a resin member held in a space between peripheral portions where the panel is opposed to the backlight, and fixing and holding a curved state, is provided. Distortion of the light transmissive glass substrates by bending of the panel is eased.Type: GrantFiled: August 7, 2008Date of Patent: November 13, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Susumu Sasaki, Hitoshi Azuma, Takao Ebine, Tomio Yaguchi, Shoichi Uchino, Akiko Iwata
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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
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Patent number: 8203261Abstract: A flexible display device bendable in a certain direction is realized. R, G, and B pixels are arranged in a mosaic pattern. The display is bendable in a first direction, but is not assumed to be bent in a second direction. A data line extends in the first direction and a select line extends in the second direction. In order to prevent accumulation of distortion in the data line and breakage of the data line when the display is bent in the first direction, the data line is formed into a crank shape. Accordingly, even when the display is bent, an amount of distortion accumulated in the data line corresponds to only a length thereof in the first direction, and therefore, the distortion can be reduced. As a result, breakage of a wire in a flexible display can be prevented.Type: GrantFiled: August 21, 2008Date of Patent: June 19, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Masahiro Tanaka, Hitoshi Azuma, Shoichi Uchino, Tomio Yaguchi, Akiko Iwata
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Publication number: 20120081643Abstract: To reduce misalignment between pixels and color filters caused by thermal expansion of substrates in a liquid crystal display device in which an opposing substrate including a resin and including color filters is disposed over a TFT substrate including a glass substrate. Glass fibers are included extendedly in the direction of a black arrow in the opposing substrate. Consequently, the thermal expansion coefficient of the opposing substrate in the direction of the black arrow is close to the thermal expansion coefficient of glass fibers and hence the difference in thermal expansion in the direction of the black arrow between the TFT substrate and the opposing substrate is small. Meanwhile, although the thermal expansion of the opposing substrate in the direction perpendicular to the black arrow is large, color purity is not influenced even if misalignment occurs in the direction.Type: ApplicationFiled: October 3, 2011Publication date: April 5, 2012Inventors: Tomio YAGUCHI, Tetsuya NAGATA
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Patent number: 8144382Abstract: The present invention enhances the repeatability of a low gray scale display of an image display device which uses oil layers. The enhancement of the repeatability of a low gray scale display can be realized by an image display device which includes a first insulation layer, a second insulation layer, a first oil layer which is arranged between the first insulation layer and the second insulation layer and, at the same time, is provided on a first insulation layer side, a second oil layer which is arranged between the first insulation layer and the second insulation layer and, at the same time, is provided on a second insulation layer side, first electrodes which are arranged outside the first insulation layer, and second electrodes which are arranged outside the second insulation layer.Type: GrantFiled: May 22, 2007Date of Patent: March 27, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiko Muneyoshi, Nobuaki Hayashi, Shoichi Uchino, Tomio Yaguchi, Akiko Iwata
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Patent number: 8089428Abstract: In an image display apparatus using an FED or an organic EL element, image display that is high in illumination uniformity and high in image quality can be performed. A display element with a matrix structure which conducts linear sequential driving which determines the luminance by a current is used, a threshold voltage of a cathode line immediately before one select period has been terminated where a control electrode line is sequentially driven is measured by a threshold voltage measuring section, the measured threshold voltage is recorded for each of the pixels, and a driving signal at the time of selecting the pixel is corrected by using the value of the recorded threshold voltage, to thereby control electric charge that is emitted from a cathode.Type: GrantFiled: October 24, 2006Date of Patent: January 3, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tomio Yaguchi, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takahiko Muneyoshi, Susumu Sasaki, Shoichi Uchino, Akiko Iwata, Makoto Okai, Tetsuya Yamazaki, Nobuaki Hayashi
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Publication number: 20110314990Abstract: A glass cutter is provided which can form, using a wheel, a uniform crack in glass even when a projection or an earlier-formed scribe line is present on the glass. When the wheel is moved on the glass, a fracture layer is formed causing a rib mark to be formed below the fracture layer and a crack to be formed below the rib mark. To cut the glass, the crack is required to be formed uniformly. Applying a force to resist the rotating force of the wheel makes it possible to form a uniform crack even when a projection is present on the glass. This improves glass cutting yield.Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Inventors: Susumu SASAKI, Katsunori Kuwaki, Makoto Tatemura, Hiroyuki Tani, Hitoshi Azuma, Tomio Yaguchi, Tatsuo Hamamoto, Hideaki Ishige, Shuji Iwasaki, Katsuyuu Takahashi
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Publication number: 20110255034Abstract: The display device according to the present invention is a display device comprising a thin glass substrate (applied thin glass) and a thin film transistor circuit (TFT circuit layer) formed on the thin glass substrate, wherein the thin glass substrate is gained by forming a transparent resin film (resin thin film) on a support member, applying a glass material to the transparent resin film, baking the glass material, and after that removing the support member.Type: ApplicationFiled: April 12, 2011Publication date: October 20, 2011Inventors: Yasushi Nakano, Hitoshi Azuma, Tomio Yaguchi
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Publication number: 20110199681Abstract: The present invention provides a display device having no less flexibility even in the case where a plate, such as a polarizing plate, is provided to the display cell with the distortion of the image being controllable, and the display device has a display cell DC on which an image can be displayed and a plate (PP1, 2) pasted to at least one side of the above described display cell, wherein the adhesiveness of the display cell to the plate in the direction perpendicular to the surface of the display cell that faces the plate is greater than the adhesiveness in the direction parallel to the facing surface.Type: ApplicationFiled: February 11, 2011Publication date: August 18, 2011Inventors: Tomio YAGUCHI, Yasushi Nakano, Shoichi Uchino, Tetsuya Nagata
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Publication number: 20110115999Abstract: Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.Type: ApplicationFiled: November 10, 2010Publication date: May 19, 2011Inventors: Shoichi UCHINO, Noboru Kunimatsu, Hidehiro Sonoda, Chikae Matsui, Yuko Matsumoto, Tomio Yaguchi, Toshiki Kaneko, Jun Tanaka
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Publication number: 20110102702Abstract: There is provided a display device including two substrates disposed opposite to each other with a liquid crystal interposed therebetween. A TFT circuit layer is formed on a surface of one of the paired substrates on the liquid crystal side. The one of the paired substrates is formed at least of glass. A resin layer is interposed between the TFT circuit layer and the glass substrate, in order to prevent the TFT circuit layer from being cracked even if a thickness of the glass substrate is reduced.Type: ApplicationFiled: October 19, 2010Publication date: May 5, 2011Inventors: Yasushi Nakano, Hitoshi Azuma, Tomio Yaguchi
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Patent number: 7903192Abstract: The invention provides a display device which can reduce breaking of a TFT substrate at the time of connecting a wiring member to the TFT substrate after decreasing a thickness of the TFT substrate and a manufacturing method of the display device. A TFT substrate and a counter substrate are adhered to each other to form a display panel. After connecting a wiring member to a line connection portion of the display panel, a portion of the display panel to be etched is masked. An etching protective film formed of an organic film is applied to the masked display panel by coating. Thereafter, a mask is peeled off together with the etching protective film formed on the mask and the display panel is immersed in an etchant thus polishing an exposed surface of a glass substrate to a predetermined thickness. Thereafter, a chemical polishing protective film formed on a wiring member is removed.Type: GrantFiled: August 12, 2008Date of Patent: March 8, 2011Assignee: Hitachi Displays, Ltd.Inventors: Hitoshi Azuma, Susumu Sasaki, Takao Ebine, Tomio Yaguchi, Shoichi Uchino, Akiko Iwata
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Publication number: 20110051070Abstract: In a liquid crystal display device including: a first substrate and a second substrate; and a liquid crystal layer which is arranged between the first substrate and the second substrate, the first substrate includes a resin substrate having conductivity and a polarizer, the polarizer is arranged on a surface of the resin substrate on a side opposite to a surface of the resin substrate which faces the second substrate in an opposed manner, a main surface of the resin substrate includes an exposure portion which exposes a portion of the main surface of the resin substrate from a main surface of the polarizer, a plurality of lines are formed on the second substrate, and the first substrate is electrically connected with at least one of the plurality of lines via the exposure portion.Type: ApplicationFiled: August 25, 2010Publication date: March 3, 2011Inventors: Susumu SASAKI, Katsuyuu Takahashi, Tetsuya Nagata, Hitoshi Azuma, Tomio Yaguchi, Yasushi Nakano