Patents by Inventor Yoichi Momose
Yoichi Momose 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: 20130044271Abstract: A liquid crystal display device is provided which includes a liquid crystal panel, a light guide plate having a plurality of side surfaces, a plurality of light emitting elements; a light source substrate having a mounting surface on which the plurality of the light emitting elements are mounted, a light source support member made of metal, including a substrate support plate portion supporting the light source substrate, with the substrate support plate portion coming into contact with a rear surface of the mounting surface, a first surface and a second surface different from the first surface, and a metal frame accommodating the liquid crystal panel and the light guide plate, and including a first contact portion that comes into contact with the first surface and a second contact portion that comes into contact with the second surface.Type: ApplicationFiled: August 10, 2012Publication date: February 21, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi MOMOSE, Nobutaka URANO
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Publication number: 20130033656Abstract: A liquid crystal display apparatus including: a liquid crystal panel which includes a device substrate, a counter substrate arranged to face the device substrate, and a protruded section in which the device substrate protrudes from an end portion of the counter substrate; a lighting system which includes an optical sheet arranged on a side which is opposite a light emission side of the liquid crystal panel; and a first frame portion which supports an edge of the protruded section of the device substrate and includes a protruded plate section that protrudes between the device substrate and the optical sheet, wherein the first frame portion includes a first stage section which faces a side end surface of the device substrate and a second stage section which is arranged between an edge of the protruded plate section and the first stage and which faces an outline side of the optical sheet.Type: ApplicationFiled: August 2, 2012Publication date: February 7, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130027967Abstract: In a light guide plate used in a lighting device, light-emitting elements are arranged at first intervals. However, the light emitting elements are partly arranged at second interval which is larger than the first intervals. Therefore, a rectangular shaped second diffusing areas formed by grooves are provided in an outer edge area arranged between a first diffusing area having a plurality of grooves (diffusing pattern) formed thereon and an end portion of the light guide plate so as to have a width smaller than the second intervals so as to face areas in which the light emitting elements are arranged at the second intervals.Type: ApplicationFiled: July 19, 2012Publication date: January 31, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130027635Abstract: An end of a light guide plate used for a liquid crystal display and a lighting unit, which is positioned on one side in a first direction, is provided with a depressed portion, and another end of the light guide plate, which is positioned on the other side in the first direction, is provided with a projecting portion. Using the depressed portion and the projecting portion, the light guide plate is placed in a predetermined position of a frame body. The depressed portion and the projecting portion are formed at positions opposite each other in the first direction, and the projecting portion is equal to or smaller than the depressed portion in size.Type: ApplicationFiled: July 13, 2012Publication date: January 31, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130027977Abstract: In an illumination apparatus, a plurality of light-emitting elements are mounted to one surface (a first surface) of a light source substrate. The light source substrate is anchored to a substrate support portion using a screw that is tightened down into the substrate support portion from the opposite side as the light source substrate. Meanwhile, the light source substrate includes a metallic plate that configures another surface (a second surface) and a flexible wiring board that is affixed to the metallic plate on the side of the one surface (the first surface), and a through-hole that passes through the metallic plate is formed, as the hole for tightening down the screw, in the location of the light source substrate in which the screw is tightened.Type: ApplicationFiled: July 19, 2012Publication date: January 31, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130027968Abstract: An illumination apparatus includes: a light guiding plate; a plurality of light-emitting elements disposed along a side-end surface of the light guiding plate that serves as a light-entry portion, each of the plurality of light-emitting elements having a light-emitting surface facing toward the side-end surface; a light source substrate that extends along the light-entry portion and has the plurality of light-emitting elements disposed thereon on one surface side that faces the light-entry portion; and a connector member, held on another surface side of the light source substrate that opposes the one surface side, for supplying power to the plurality of light-emitting elements.Type: ApplicationFiled: July 19, 2012Publication date: January 31, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130021557Abstract: Provided is a liquid crystal display device including: an illumination device, and a liquid crystal panel that is arranged so as to be stacked on a light-emitting surface side of the illumination device, wherein the illumination device includes a light guide plate in which a side end surface extending in a first direction is a light incident portion, a plurality of light-emitting elements that align along a first direction and, each of the plurality of light-emitting elements faces a light-irradiating surface in the light incident portion, and a plurality of groove rows that are formed of a plurality of grooves which are linearly arranged in a second direction on an opposite surface facing the light-emitting surface of the light guide plate, the second direction intersects the first direction in an in-plane direction of the light-emitting surface, and that are arranged in parallel in the first direction.Type: ApplicationFiled: July 18, 2012Publication date: January 24, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi MOMOSE, Nobutaka URANO
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Publication number: 20130021558Abstract: In a liquid crystal display device, a reflecting surface is attached to a portion, which overlaps with a periphery portion of a light guiding plate where the light incident section is position in a surface on the light guiding plate side in the dispersing sheet which is positioned farthest to the light guiding plate side among a plurality of optical sheets which are positioned between the light guiding plate and a liquid crystal panel. As a result, light which is emitted from the periphery portion of the light guiding plate is returned into the light guiding plate by being reflected by the reflecting surface, and after this, is emitted as illumination light from a light emitting surface while progressing within the light guiding plate.Type: ApplicationFiled: July 13, 2012Publication date: January 24, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi MOMOSE, Nobutaka URANO
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Publication number: 20130021559Abstract: When first grooves are formed by irradiating a lower surface facing a light outgoing surface of a light guide plate for an illuminating device with laser beams, an outer circumferential region is firstly irradiated with the laser beams to form second grooves. Then, the second grooves are inspected. Next, irradiation conditions of the laser beams are adjusted based on an inspection result of the second grooves, irradiation positions of the laser beams are linearly displaced from formation positions of the second grooves, and formation of the first grooves in the scattering reflection region is then started.Type: ApplicationFiled: July 13, 2012Publication date: January 24, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi MOMOSE, Nobutaka URANO
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Publication number: 20130016523Abstract: In a lighting device of a display device, a plurality of light emitting elements are mounted on a surface of a light source substrate, and the light source substrate is supported by a light source support member by means of a positioning (fixing) structure such as a metal screw. The plurality of light emitting elements are divided into a plurality of blocks, and the emission light amount can be controlled with respect to each of the blocks. Although the head of the screw is exposed on the surface of the light source substrate, the screw is located between adjacent ones of the blocks. Therefore, even though the illuminating light intensity becomes partially discontinuous owing to the presence of the screw, degradation of display quality originating from such discontinuity can be suppressed.Type: ApplicationFiled: July 6, 2012Publication date: January 17, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Nobutaka URANO, Yoichi MOMOSE
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Publication number: 20130016524Abstract: An illumination device of a display device is configured such that heat of light-emitting elements is dissipated via a light source substrate, a light source support member made of a metal, and a first frame made of a metal. The illumination device also includes a second frame made of a resin that is disposed such that a closed space is formed along the light source support member between the frame and the light source support member. The second frame has an opening portion that communicates with the closed space, and the first frame and a third frame each has an opening portion at a position that overlaps the opening portion of the second frame, thereby allowing heat of the light-emitting elements to be dissipated through the closed space and an opening which is formed by opening portions.Type: ApplicationFiled: July 6, 2012Publication date: January 17, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi MOMOSE, Nobutaka URANO
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Publication number: 20130002982Abstract: In a liquid crystal device, when the local dimming is adopted, at a light guide plate of a lighting device, light guide plate portions having a trapezoidal planar shape where two sides facing each other in the Y-axis direction have different lengths are arranged in the X-axis direction to have reverse orientations in the Y-axis direction. A light emitting element emits the light of a light source from the end surface of the light guide plate portion which is located at a short side into the light guide plate portion. A light scattering surface is installed at the space between the light guide plate portions.Type: ApplicationFiled: June 26, 2012Publication date: January 3, 2013Applicant: SEIKO EPSON CORPORATIONInventor: Yoichi MOMOSE
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Patent number: 8339331Abstract: An electro-optical device including: first display elements each divided into at least a first region and a second region, for displaying a first image, and second display elements each divided into at least a third region and a fourth region, for displaying a second image, the first and second display elements being arranged such that each third region is disposed between the first region and the second region of the adjacent first display element and each second region is disposed between the third region and the fourth region of the adjacent second display element; a parallax barrier layer provided on a side of the display elements adjacent to a viewer, the parallax barrier having light transmitting regions at positions thereof corresponding to boundaries between adjoining first and third regions as well as between adjoining second and fourth regions; and a spacer layer separating the display elements from the parallax barrier layer.Type: GrantFiled: November 21, 2008Date of Patent: December 25, 2012Assignee: Epson Imaging Devices CorporationInventor: Yoichi Momose
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Publication number: 20120113076Abstract: Pairs of a TFT and a pixel electrode, the number of which is (m×n), are provided. The TFT has a gate electrode connected to a scanning line, a source electrode connected to a data line, and a drain electrode connected to the pixel electrode. The pixel electrodes are arrayed in a matrix of m rows and n columns. Each of the pixel electrodes on any column is alternately electrically connected to either of two adjacent data lines via the TFT.Type: ApplicationFiled: September 22, 2011Publication date: May 10, 2012Applicant: Seiko Epson CorporationInventor: Yoichi Momose
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Publication number: 20110249405Abstract: A heat dissipating member is formed so as to be opposed to a reflection type liquid crystal panel. The heat dissipating member includes a heat receiving portion that is opposed to a reflection type light modulation element and has a heat receiving surface for receiving heat from the element, a heat dissipating fin that dissipates heat received on the heat receiving portion to the outside. The heat receiving portion has heat receiving convexes which project to the side at which the element is arranged from the heat receiving surface, and the convexes are formed such that ratios of areas of tip surfaces of the heat receiving convexes with respect to a unit area are larger on a center portion of a heat reception acceleration region rather than on an end of the heat reception acceleration region.Type: ApplicationFiled: April 5, 2011Publication date: October 13, 2011Applicant: Seiko Epson CorporationInventors: Yusuke Kinoe, Yoichi Momose
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Publication number: 20110242475Abstract: A liquid crystal device includes an element substrate on a surface of which a display element region is formed that includes a MOS-FET array circuit and an extension of a reflective electrode superposed on the MOS-FET array circuit; a counter substrate disposed so as to oppose the surface of the element substrate having the display element region, and including a transparent electrode formed on a surface opposing the element substrate; a seal member provided between the element substrate and the counter substrate in a loop shape so as to surround the display element region; and liquid crystal enclosed in the region surrounded by the seal member; and the seal member is not superposed on the extension of the reflective electrode in a region along an outer peripheral edge of the element substrate.Type: ApplicationFiled: March 25, 2011Publication date: October 6, 2011Applicant: Seiko Epson CorporationInventor: Yoichi Momose
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Publication number: 20110222003Abstract: An electro-optical device includes a pair of substrates bonded together via a seal member disposed in a seal region, and a plurality of light-shielding layers formed so as to overlap with each other on one of the substrates, and one of the plurality of light-shielding layers is larger in outer shape than another light-shielding layer formed at a level higher than the one of the light-shielding layer, in plan view from above the one of the substrates.Type: ApplicationFiled: March 2, 2011Publication date: September 15, 2011Applicant: Seiko Epson CorporationInventors: Yusuke Kinoe, Yoichi Momose
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Patent number: 7679708Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer that is interposed between the first and second substrates, and a sealing member that is formed in peripheral portions of the first and second substrates. The sealing member includes a ring-shaped portion that seals the liquid crystal layer inboard of the sealing member and connecting portions that connect first and second regions of the sealing member to form the ring-shaped portion. The connecting portions are formed outboard of the ring-shaped portion.Type: GrantFiled: December 22, 2005Date of Patent: March 16, 2010Assignee: Seiko Epson CorporationInventors: Yoichi Momose, Satoshi Hasegawa
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Publication number: 20090243961Abstract: An electro-optical device including: first display elements each divided into at least a first region and a second region, for displaying a first image, and second display elements each divided into at least a third region and a fourth region, for displaying a second image, the first and second display elements being arranged such that each third region is disposed between the first region and the second region of the adjacent first display element and each second region is disposed between the third region and the fourth region of the adjacent second display element; a parallax barrier layer provided on a side of the display elements adjacent to a viewer, the parallax barrier having light transmitting regions at positions thereof corresponding to boundaries between adjoining first and third regions as well as between adjoining second and fourth regions; and a spacer layer separating the display elements from the parallax barrier layer.Type: ApplicationFiled: November 21, 2008Publication date: October 1, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Yoichi Momose
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Publication number: 20060139563Abstract: A method of manufacturing a liquid crystal device having a first substrate and a second substrate facing each other with a liquid crystal layer interposed therebetween, and a sealing member formed in a peripheral portion of at least one of the substrates. The method includes forming the sealing member, disposing the liquid crystal layer inside the sealing member, and bonding the first substrate to the second substrate. In forming the sealing member, a ring-shaped portion that seals the liquid crystal layer inside the sealing member, a first sealing layer and a second sealing layer that face each other to be separated from each other are formed. In the bonding of the first substrate to the second substrate, a junction portion is formed in which the first and second sealing layers are pressed and joined outside the sealing member so as to form the ring-shaped portion.Type: ApplicationFiled: December 12, 2005Publication date: June 29, 2006Inventors: Yoichi Momose, Satoshi Hasegawa