Patents by Inventor Eiji Nittou
Eiji Nittou 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: 20150362652Abstract: A backlight device includes an LED; a light guide plate that has a light-exiting surface provided at one plate surface, an opposite surface provided at a plate surface on the opposite side to the light-exiting surface, and a light-receiving side face provided at one side face, that is arranged such that the light-receiving side face faces the LED and that guides light from the LED; a chassis having a plate surface arranged so as to face the opposite surface and housing at least the LED and the light guide plate; and an optical sheet that is arranged so as to face the light-exiting surface, that provides light that has exited the light guide plate with an optical function and that has a bent portion that extends further toward the outside than an edge of the light-exiting surface and is bent toward the opposite surface side and as a result covers at least part of a side face of the light guide plate.Type: ApplicationFiled: January 21, 2014Publication date: December 17, 2015Applicant: Sharp Kabushiki KaishaInventors: Keiji HAYASHI, Eiji NITTOU, Toshikazu MATSUKAWA, Nobuyuki NAKAMURA, Yoshitsugu KAWAHIGASHI, Takeshi SUZUKI
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Patent number: 8654065Abstract: What is provided is a liquid crystal display unit (1), including: a first liquid crystal display element (2) for displaying an image; an accessory (4) provided behind the first liquid crystal display element (2); and a surface light source (3) provided between the first liquid crystal display element (2) and the accessory (4), the surface light source (3) being movable, and the surface light source (3) being moved (i) so that the accessory (4) is shielded in a first case where the image, displayed by the first liquid crystal display element (2), is viewed by a primary viewer of the first liquid crystal display element (2) and (ii) so that the accessory (4) is not shielded in a second case where the accessory (4) is viewed by the primary viewer. This makes it possible to fully shield, with a simple configuration, the accessory provided behind a liquid crystal display device.Type: GrantFiled: December 25, 2008Date of Patent: February 18, 2014Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Patent number: 8355094Abstract: The present invention includes a primary display region (15a) capable of being directly viewed by a primary viewer of a first liquid crystal display element (2); and a secondary display region (15b) incapable of being directly viewed by the viewer; a backlight device (3) provided so as to face only a portion of a back surface (2b) of the first liquid crystal display element (2) which portion corresponds to the secondary display region (15b); and a reflecting section (4, 5, 6, 7) configured to cause light emitted from the secondary display region (15b) in a forward direction to be emitted from the back surface (2b) of the primary display region (15a) in the forward direction again. This arrangement enables production of a liquid crystal display unit (1) which can carry out, with a simple arrangement, a display that provides viewers with perception of depth.Type: GrantFiled: January 30, 2009Date of Patent: January 15, 2013Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Patent number: 8287370Abstract: A display unit (1) of the present invention includes: a first liquid crystal display element (20) for displaying an image; a character object (62) disposed behind the first liquid crystal display element (20); a second liquid crystal display element (30) disposed between the first liquid crystal display element (20) and the character object (62), for shielding the character object (62); and a character object shielding section (64) which is a mechanical shielding device, disposed behind the second liquid crystal display element (30), for shielding the character object (62).Type: GrantFiled: March 25, 2008Date of Patent: October 16, 2012Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Patent number: 8237889Abstract: A backlight device in which a reflector can be easily taken in and out and can be efficiently replaced by preventing friction between a casing and the reflector from occurring when the reflector is assembled in the device and variation of optical characteristics after the assembling can be suppressed. In order to provide such a backlight device, the cross sectional shape of the reflector is gradually reduced in its inserting direction.Type: GrantFiled: December 27, 2007Date of Patent: August 7, 2012Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Patent number: 8192055Abstract: A backlight device is provided with a substrate whereupon a plurality of light emitting diodes are arranged, and a lower side chassis (heat dissipating unit) where heat generated by the light emitting diodes is transferred from the substrate and dissipated to the outside. An amount of heat generated by each light emitting diode is measured in advance, and in accordance with the measurement results of the amounts of generated heat, an arrangement position on the substrate is determined and corresponding light emitting diodes are arranged.Type: GrantFiled: April 11, 2007Date of Patent: June 5, 2012Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Patent number: 8172679Abstract: In a gaming table (1), image light L1 emitted from a display surface of a liquid crystal module (2) that carries out a dual image display arrives, directly through a window of a frame (4b), at a player in front of the gaming table. Image light L2 emitted from the display surface of the liquid crystal module (2) is reflected by a reflecting surface of a mirror member (3) so as to also arrive at the player through the window of the frame (4b). The player recognizes a first image formed from the image light L1 and a second image formed from the image light L2. Thus, the first and second images are supplied to the player as a background image on the gaming table (1). This makes it possible to realize a gaming machine having a display device that can display a large screen and can reduce the size and cost of the gaming machine.Type: GrantFiled: May 23, 2007Date of Patent: May 8, 2012Assignee: Sharp Kabushiki KaishaInventor: Eiji Nittou
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Publication number: 20110279755Abstract: A curved surface (CS) is formed by chamfering on a light guide plate (11) portion which overlaps with an outer edge (SD) of a liquid crystal shutter (21).Type: ApplicationFiled: September 28, 2009Publication date: November 17, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Eiji Nittou
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Publication number: 20110157516Abstract: Provided is an illuminating device wherein luminance deterioration due to a change of visual angle is suppressed. An illuminating device (10) is provided with a plurality of linear light sources (2) which are arranged from one end of the case member (1) toward the other end. Each of the linear light sources (2) grouped as a first light source (2a) has a light emitting direction tilted to one end of the case member (1) with respect to a Z direction. Each of the linear light sources (2) grouped as a second light source (2b) has a light emitting direction tilted to the other end of the case member (1) with respect to the Z direction.Type: ApplicationFiled: June 15, 2009Publication date: June 30, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Eiji Nittou
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Publication number: 20110051038Abstract: The present invention includes a primary display region (15a) capable of being directly viewed by a primary viewer of a first liquid crystal display element (2); and a secondary display region (15b) incapable of being directly viewed by the viewer; a backlight device (3) provided so as to face only a portion of a back surface (2b) of the first liquid crystal display element (2) which portion corresponds to the secondary display region (15b); and a reflecting section (4, 5, 6, 7) configured to cause light emitted from the secondary display region (15b) in a forward direction to be emitted from the back surface (2b) of the primary display region (15a) in the forward direction again. This arrangement enables production of a liquid crystal display unit (1) which can carry out, with a simple arrangement, a display that provides viewers with perception of depth.Type: ApplicationFiled: January 30, 2009Publication date: March 3, 2011Inventor: Eiji Nittou
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Publication number: 20110018913Abstract: What is provided is a liquid crystal display unit (1), including: a first liquid crystal display element (2) for displaying an image; an accessory (4) provided behind the first liquid crystal display element (2); and a surface light source (3) provided between the first liquid crystal display element (2) and the accessory (4), the surface light source (3) being movable, and the surface light source (3) being moved (i) so that the accessory (4) is shielded in a first case where the image, displayed by the first liquid crystal display element (2), is viewed by a primary viewer of the first liquid crystal display element (2) and (ii) so that the accessory (4) is not shielded in a second case where the accessory (4) is viewed by the primary viewer. This makes it possible to fully shield, with a simple configuration, the accessory provided behind a liquid crystal display device.Type: ApplicationFiled: December 25, 2008Publication date: January 27, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Eiji Nittou
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Publication number: 20100240452Abstract: In a gaming table (1), image light L1 emitted from a display surface of a liquid crystal module (2) that carries out a dual image display arrives, directly through a window of a frame (4b), at a player in front of the gaming table. Image light L2 emitted from the display surface of the liquid crystal module (2) is reflected by a reflecting surface of a mirror member (3) so as to also arrive at the player through the window of the frame (4b). The player recognizes a first image formed from the image light L1 and a second image formed from the image light L2. Thus, the first and second images are supplied to the player as a background image on the gaming table (1). This makes it possible to realize a gaming machine having a display device that can display a large screen and can reduce the size and cost of the gaming machine.Type: ApplicationFiled: May 23, 2007Publication date: September 23, 2010Inventor: Eiji Nittou
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Publication number: 20100184510Abstract: A display unit (1) of the present invention includes: a first liquid crystal display element (20) for displaying an image; a character object (62) disposed behind the first liquid crystal display element (20); a second liquid crystal display element (30) disposed between the first liquid crystal display element (20) and the character object (62), for shielding the character object (62); and a character object shielding section (64) which is a mechanical shielding device, disposed behind the second liquid crystal display element (30), for shielding the character object (62).Type: ApplicationFiled: March 25, 2008Publication date: July 22, 2010Inventor: Eiji Nittou
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Publication number: 20100144432Abstract: A light control layer (70) is provided between a first liquid crystal display element (20) and an accessory (62), and the light control layer (70) separates two regions and transmits and reflects light so that a dark region of the two regions is not seen from a bright region of the two regions and the bright region is seen from the dark region, and the two regions separated by the light control layer (70) respectively include light sources (a first light source section (40) and a second light source section (50)) whose brightnesses are independently controllable, and said liquid crystal display unit includes a control section for controlling the brightnesses of the light sources.Type: ApplicationFiled: August 12, 2008Publication date: June 10, 2010Inventor: Eiji Nittou
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Publication number: 20100110341Abstract: A backlight device in which a reflector can be easily taken in and out and can be efficiently replaced by preventing friction between a casing and the reflector from occurring when the reflector is assembled in the device and variation of optical characteristics after the assembling can be suppressed. In order to provide such a backlight device, the cross sectional shape of the reflector is gradually reduced in its inserting direction.Type: ApplicationFiled: December 7, 2007Publication date: May 6, 2010Inventor: Eiji Nittou
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Publication number: 20100073915Abstract: First protruded strips (12) are formed on the inner surface of the bottom plate (11) of a case body (1) between cold cathode tubes (2), and second protruded strips (13) are so formed on the outer surface of the bottom plate (11) of the case body (1) as to intersect the first strips (12) when viewed from the bottom surface. To further increase the strength of a lamp case (C), it is preferable that the first strips (12) and the second strips (13) intersect each other in substantially vertical direction when viewed from the bottom surface. Furthermore, it is preferable that the first strips (12) and the second strips (13) are formed integrally with the case body (1).Type: ApplicationFiled: September 6, 2007Publication date: March 25, 2010Inventor: Eiji Nittou
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Publication number: 20090316432Abstract: A backlight device (3) is provided with a substrate (9) whereupon a plurality of light emitting diodes (10) are arranged, and a lower side chassis (heat dissipating unit) (6) where heat generated by the light emitting diodes (10) is transferred from the substrate (9) and dissipated to the outside. An amount of heat generated by each light emitting diode (10) is measured in advance, and in accordance with the measurement results of the amounts of generated heat, an arrangement position on the substrate (9) is determined and corresponding light emitting diodes (10) are arranged.Type: ApplicationFiled: April 11, 2007Publication date: December 24, 2009Inventor: Eiji Nittou
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Patent number: 6986600Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.Type: GrantFiled: May 30, 2003Date of Patent: January 17, 2006Assignee: Sharp Kabushiki KaishaInventors: Fumiaki Yamada, Shinpei Nagatani, Masaki Miyahara, Eiji Nittou
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Publication number: 20030210540Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.Type: ApplicationFiled: May 30, 2003Publication date: November 13, 2003Applicant: Fujitsu LimitedInventors: Fumiaki Yamada, Shinpei Nagatani, Masaki Miyahara, Eiji Nittou
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Patent number: 6612709Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.Type: GrantFiled: September 11, 1997Date of Patent: September 2, 2003Assignee: Fujitsu Display Technologies CorporationInventors: Fumiaki Yamada, Shinpei Nagatani, Masaki Miyahara, Eiji Nittou