Patents Assigned to Epson Imaging Devices Corporation
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Patent number: 7667378Abstract: An illuminating device includes a light source including a light-emitting element, an electrode electrically connected to the light-emitting element, and a heat radiation terminal electrically isolated from the light-emitting element; and a multilayer substrate including a plurality of insulating layers, a plurality of metal layers, an electrically conducting interlayer contact portion, and a heat-conducting interlayer contact portion. The insulating layers include all insulating layer having a mount surface on which the light source is mounted with the electrode and the heat radiation terminal therebetween. The metal layers include an electrically conducting metal layer electrically connected to the electrode and disposed so as to be separated from the light source by the insulating layer having the mount surface and an electrically isolated metal layer electrically isolated from the other metal layers and disposed most distant from the mount surface of all the metal layers.Type: GrantFiled: September 17, 2007Date of Patent: February 23, 2010Assignee: Epson Imaging Devices CorporationInventor: Toyohiro Sakai
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Patent number: 7663726Abstract: A liquid crystal apparatus includes a liquid crystal display panel including two substrates with liquid crystal interposed therebetween, a conductive layer provided on an outer surface of at least one of the substrates, a flexible board electrically connected to the liquid crystal display panel, and a tape-like conductive member providing an electrical connection between the conductive layer and a grounding wire of the flexible board.Type: GrantFiled: October 23, 2007Date of Patent: February 16, 2010Assignee: Epson Imaging Devices CorporationInventors: Yoji Takahashi, Kanechika Kiyose
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Patent number: 7659955Abstract: A liquid crystal device includes an OCB mode liquid crystal panel including a pair of substrates and a liquid crystal layer disposed therebetween, an optical compensator provided on at least one side of the liquid crystal panel, and an optical-axis-adjusting unit that moves the optical compensator relative to the liquid crystal panel to adjust an angle formed by an optical axis of the optical compensator and an optical axis of the liquid crystal panel.Type: GrantFiled: December 12, 2006Date of Patent: February 9, 2010Assignee: Epson Imaging Devices CorporationInventors: Akihide Haruyama, Joji Nishimura
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Publication number: 20100027241Abstract: A direct-type backlight unit includes: an arrangement surface on which a plurality of light sources are arranged; and a plurality of reflecting surfaces that are formed at a plurality of ends of the arrangement surface and reflect light emitted from the plurality of light source. Light emitted from the light sources and light reflected from the plurality of reflecting surfaces irradiate to a radiation area surrounded by the plurality of reflecting surfaces. The plurality of reflecting surfaces are inclined at an angle that is smaller than 90 degrees with respect to an extension surface of the arrangement surface that extends toward the outside of the reflecting surface. The plurality of reflecting surfaces include reflecting surfaces having a large inclination angle and reflecting surfaces having an inclination angle that is smaller than the large inclination angle.Type: ApplicationFiled: April 8, 2009Publication date: February 4, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Daisuke NAKANISHI
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Publication number: 20100026926Abstract: An electronic apparatus includes a back light unit that has a light source, an optical member that is arranged so as to face the irradiation direction of the light of the light source, and a spacer that supports the optical member from the light source side and is arranged in a state in which the optical member is arranged parallel to the direction of gravity or inclined with respect to the direction of gravity, and a display panel that is arranged so as to be superimposed on the optical member of the back light unit. In the back light unit, the number of spacers arranged in an upper half area of the optical member with respect to the direction of gravity is configured to be smaller than that of the spacers arranged in a lower half area of the optical member with respect to the direction of gravity.Type: ApplicationFiled: July 17, 2009Publication date: February 4, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Daisuke NAKANISHI
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Publication number: 20100027243Abstract: A backlight unit includes: an arrangement surface on which a plurality of light sources are arranged; a plurality of reflection surfaces which are erected from a plurality of edges of the arrangement surface and reflect a light from the plurality of light sources, wherein the light emitted from the light sources and the light reflected from the plurality of reflection surfaces irradiate to an irradiation area surrounded by the plurality of reflection surfaces; the plurality of reflection surfaces are each inclined at an inclination angle smaller than 90 degrees with respect to extension surface of the arrangement surface which extends toward the outside of the reflection surface; at least one reflection surface of the plurality of reflection surfaces includes a large inclination area inclined at a large inclination angle and a small inclination area inclined at a small inclination angle; and the light source arranged close to the large inclination area is disposed closer to the outside frame of the irradiatioType: ApplicationFiled: May 28, 2009Publication date: February 4, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Daisuke NAKANISHI
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Publication number: 20100020334Abstract: An illumination device includes a light incident face onto which light is incident, a light guide plate that has a light emitting face that is disposed adjacent to the light incident face and intersects the light incident face, an illumination light source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, a position detecting beam source that is disposed to face the light incident face such that an optical axis thereof faces the light incident face, and a wiring substrate that extends along the light incident face and has both the illumination light source and the position detecting beam source mounted thereon.Type: ApplicationFiled: April 2, 2009Publication date: January 28, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Daisuke NAKANISHI
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Patent number: 7649606Abstract: An electro-optical device includes a substrate, a plurality of external connection terminals provided on the substrate, an electronic component mounted on the substrate and having a plurality of terminals, and a plurality of wires that electrically connect the plurality of external connection terminals to the plurality of terminals of the electronic component. A constant-potential wire is provided in the vicinity of locations of connections of at least some of the plurality of wires with the respective terminals of the electronic component.Type: GrantFiled: December 6, 2006Date of Patent: January 19, 2010Assignee: Epson Imaging Devices CorporationInventors: Nobuhito Matsumoto, Masaru Ito
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Publication number: 20100007723Abstract: An image display device includes display regions, each having sub-pixels arranged therein, a pixel groups, each including a pixels, each pixel being composed of the sub-pixels included in the unit display regions adjacent to each other, a separating element which separates light of the image into light beams directing in different directions in the unit of one pixel group, an image signal supply unit which supplies an identical image signal or different image signals to the pixel groups, respectively, and a selection unit which selects a number of pixel groups or a number of pixels included in the pixel group.Type: ApplicationFiled: July 1, 2009Publication date: January 14, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Masashi YASUI
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Patent number: 7646369Abstract: A method of driving a liquid crystal display device includes a plurality of scanning lines, a plurality of data lines arranged to intersect the plurality of scanning lines, a plurality of pixel electrodes arranged in correspondence with the intersections between the plurality of scanning lines and the plurality of data lines, a plurality of pixel switching elements for supplying the signals of the data lines to the pixel electrodes based on the signals of the scanning lines, and an opposed electrode facing the pixel electrodes. The plurality of scanning lines are supplied with respective timings to apply any one of a selection potential and a non-selection potential to the pixel switching elements, the opposed electrode is inversion-driven between a first potential and a second potential, and at least one of the plurality of scanning lines has the selection potential at a common inversion timing when the opposed electrode is inverted from the first potential to the second potential.Type: GrantFiled: February 15, 2006Date of Patent: January 12, 2010Assignee: Epson Imaging Devices CorporationInventors: Yutaka Kobashi, Takashi Toya
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Publication number: 20100002179Abstract: A liquid crystal display includes: a pair of substrates which are disposed so as to be opposite each other and have a liquid crystal layer interposed therebetween; an upper electrode configured to be included in one substrate of the pair of substrates, and be formed so as to have a plurality of slits therein; and a lower electrode configured to be included in the one substrate of the pair of substrates, and be formed on an insulating film covering the upper electrode so as to be partially overlapped with the upper electrode in plan view; wherein the lower electrode has at least one slit which is formed so as to be parallel with the plurality of slits formed in the upper electrode; and wherein the at least one slit formed in the lower electrode is formed so as to be overlapped with the upper electrode in plan view.Type: ApplicationFiled: May 19, 2009Publication date: January 7, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Masahiro HORIGUCHI
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Publication number: 20090321640Abstract: An photodetector includes: a first light receiving element that receives light including ambient light; a second light receiving element that receives light including the ambient light; and a red color filter disposed on an optical path through which the ambient light is incident on the second light receiving element.Type: ApplicationFiled: June 9, 2009Publication date: December 31, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Tomohide Onogi
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Publication number: 20090322983Abstract: An illumination device comprising: a wired board having flexibility and including a light source member mounted on one of principal planes; a light-shielding member disposed so as to cover at least part of the other principal plane of the wired board on the opposite side from the one principal plane and having at least partly a light-shielding property; a fixing member having first and second sticking surfaces to which the wired board and the light-shielding member are stuck respectively, a first adhesive layer being interposed between the one principal plane of the wired board and the first sticking surface of the fixing member, having an adhesive property with respect to both of the one principal plane of the wired board and the first sticking surface, and having a first adhesive force with respect to the one principal plane, and a second adhesive layer being disposed on a surface opposing the fixing member of the light-shielding member, and having a portion having an adhesive property with respect to bothType: ApplicationFiled: March 30, 2007Publication date: December 31, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Naruo HASHINO
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Publication number: 20090323005Abstract: A liquid crystal display panel includes a pair of substrates which are disposed so as to be opposite each other and have a liquid crystal layer interposed therebetween.Type: ApplicationFiled: May 27, 2009Publication date: December 31, 2009Applicant: Epson Imaging Devices CorporationInventor: Akio OTA
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Patent number: 7639335Abstract: An electro-optical device includes an electro-optical panel including a first substrate and a second substrate which interpose an electro-optical material therebetween, a transparent conductive film disposed on an outer surface of the first substrate or the second substrate, and a base member having an electrode electrically connected to the transparent conductive film via an adhesive, in which the electrode is formed at a region having a plane shape, which is the same as or narrower than that of the base member, the base member is provided with concave portions or through-holes disposed along a side thereof, and the concave portions or the through-holes are provided with the adhesive.Type: GrantFiled: March 6, 2008Date of Patent: December 29, 2009Assignee: Epson Imaging Devices CorporationInventor: Munenori Kurasawa
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Patent number: 7639245Abstract: An electro-optical device includes: an entire screen display mode and a partial display mode. In the entire screen display mode, positive and negative polarity image signals are supplied on the basis of a voltage that is greater than a voltage applied to the common electrode by a predetermined offset potential, and in the partial display mode, positive and negative polarity image signals are supplied on the basis of the voltage applied to the common electrode. In the partial display mode, the positive and negative polarity image signals are further corrected by the predetermined offset potential.Type: GrantFiled: July 24, 2006Date of Patent: December 29, 2009Assignee: Epson Imaging Devices CorporationInventors: Koji Shimizu, Ryo Ishii
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Patent number: 7639326Abstract: A liquid crystal device is provided which has a pair of substrates provided with a plurality of sub-pixels and disposed opposite to each other and a liquid crystal layer sandwiched between the pair of substrates. The liquid crystal device further includes; a colorant layer formed in some of the sub-pixels in one substrate of the pair of the substrates; a control film that controls a step difference between the colored region in which the colorant layer exists and the non-colored region in which the colorant layer does not exist so that the surface on the liquid crystal layer of the one substrate is planarized in the sub-pixel, and that is provided in the non-colored region of the one substrate; and a reflective film formed on the control film and in the colored region. Here, the colorant layer is provided on the reflective film in the colored region.Type: GrantFiled: December 4, 2006Date of Patent: December 29, 2009Assignee: Epson Imaging Devices CorporationInventor: Chiyoaki Iijima
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Publication number: 20090315854Abstract: Provided is a capacitance type input device, in which a plurality of first light transmission electrodes extending in a first direction and a plurality of second light transmission electrodes extending in a second direction crossing the first direction are formed in an input region of a light transmission substrate, wherein, when the light transmission substrate is viewed from the top, dummy patterns formed of the same light transmission conductive film as the first light transmission electrodes and the second light transmission electrodes are formed in regions sandwiched between the first light transmission electrodes and the second light transmission electrodes.Type: ApplicationFiled: April 2, 2009Publication date: December 24, 2009Applicant: Epson Imaging Devices CorporationInventor: Mutsumi MATSUO
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Publication number: 20090316080Abstract: There is provided a display panel formed by segmenting a large sized substrate into an individual substrate along alignment marks, remaining portions of the alignment marks being formed in the display panel. A remaining portion of a slant mark formed by a plurality of scale lines arranged in parallel to each other is formed between the remaining portions of the alignment marks.Type: ApplicationFiled: May 28, 2009Publication date: December 24, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventors: Hideki UEHARA, Yoshiaki ARAMATSU
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Publication number: 20090316093Abstract: There is provided a liquid crystal display device including a first substrate in which a first electrode and a second electrode are provided, the second electrode having a plurality of line-shaped portions that generate an electric field between the first electrode, a second substrate opposing the first substrate, a liquid crystal layer sandwiched between the first substrate and the second substrate, the liquid crystal layer being partitioned into a plurality of display pixels each of which is driven by the electric field, a polarization film arranged outside the second substrate, and an optical member film arranged outside the polarization film. The optical member film has a front phase difference whose retardation value is in the range of 120 to 160 nm, and an angle of an optical axis of the optical member film with respect to an extending direction of the plurality of line-shaped portions of the second electrode is in the range of 30 to 40 degrees or 50 to 60 degrees.Type: ApplicationFiled: April 16, 2009Publication date: December 24, 2009Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Tomoaki SEKIME