Patents by Inventor Ryuzo Yuki
Ryuzo Yuki 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: 20240351441Abstract: A liquid crystal display device includes a backlight module configured to switch between first light having a maximum luminance in a first direction and second light having a maximum luminance in a second direction different from the first direction and emit the first light and the second light from a main surface, a liquid crystal display panel, and a control device. The control device receives a first image and generates a first offset image based on the first image, the first offset image being an image obtained by reversing a color of the first image and having a luminance adjusted, controls the liquid crystal display panel such that a first display image including the first image and a second display image including the first offset image are alternately displayed, and controls the backlight module so that the first light is emitted when the first display image is displayed and the second light is emitted when the second display image is displayed.Type: ApplicationFiled: March 19, 2024Publication date: October 24, 2024Inventors: Ryuzo YUKI, Naru Usukura, Junichi Masuda, Shugo Yagi
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Patent number: 12101963Abstract: A display device includes an active matrix substrate including a transistor element and a light-emitting element layer provided on the active matrix substrate and including a first electrode, a second electrode, a function layer including a light-emitting layer between the first electrode and the second electrode, and a sealing layer. The display device includes: a half mirror provided on a display surface side of the light-emitting element layer; and a first ?/4 plate, a reflective polarizer, and an absorbing polarizer which are provided in order from the light-emitting element layer side between the light-emitting element layer and the half mirror.Type: GrantFiled: March 1, 2019Date of Patent: September 24, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Ryuzo Yuki, Kiyoshi Minoura, Kohzoh Nakamura, Akira Sakai
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Patent number: 12066701Abstract: A display device includes a display panel and a control unit. The display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel. The control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.Type: GrantFiled: July 31, 2023Date of Patent: August 20, 2024Assignee: Sharp Display Technology CorporationInventors: Chiaki Minari, Naru Usukura, Ryuzo Yuki
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Publication number: 20240120852Abstract: A support system includes: a container that is deformable; an ER fluid sealed in the container; and a plurality of application electrodes each provided in the container, and the support system further includes a plurality of rigid bodies each firmly fixed to the container.Type: ApplicationFiled: February 15, 2021Publication date: April 11, 2024Inventors: Shugo KANO, RYUZO YUKI, TOMOHIRO KIMURA
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Publication number: 20240061284Abstract: A display device includes a display panel and a control unit. The display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel. The control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.Type: ApplicationFiled: July 31, 2023Publication date: February 22, 2024Inventors: Chiaki MINARI, Naru USUKURA, Ryuzo YUKI
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Publication number: 20220158141Abstract: A display device includes an active matrix substrate including a transistor element and a light-emitting element layer provided on the active matrix substrate and including a first electrode, a second electrode, a function layer including a light-emitting layer between the first electrode and the second electrode, and a sealing layer. The display device includes: a half mirror provided on a display surface side of the light-emitting element layer; and a first ?/4 plate, a reflective polarizer, and an absorbing polarizer which are provided in order from the light-emitting element layer side between the light-emitting element layer and the half mirror.Type: ApplicationFiled: March 1, 2019Publication date: May 19, 2022Inventors: RYUZO YUKI, Kiyoshi MINOURA, KOHZOH NAKAMURA, AKIRA SAKAI
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Patent number: 11105972Abstract: The light input efficiency of a light-emitting device into a circular disc-shaped or elliptical disc-shaped light guide plate is increased. A light-emitting device includes a first light-emitting unit (12a) that includes a plurality of light-emitting elements (L1 to L5) arranged curvilinearly, a second light-emitting unit (12b) that includes a plurality of light-emitting elements (L6 to L10) arranged curvilinearly, and a coupling portion (12c) that is disposed so as to coincide with a region (SA) sandwiched by the first and second light-emitting units and couples the first and second light-emitting units.Type: GrantFiled: August 7, 2017Date of Patent: August 31, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Youzou Kyoukane, Hisashi Watanabe, Hirotoshi Yasunaga, Ryuzo Yuki
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Patent number: 11073692Abstract: The present disclosure provides a display apparatus capable of suppressing screen-door effect without requiring alignment between an optical element and a pixel. A display apparatus (1) includes a CF substrate (13) that determines a color of a sub-pixel corresponding to a color element, for each of a plurality of pixels, and a lenticular lens (14) that widens a full width at half maximum of luminance of emitted light more than a full width at half maximum of luminance of light incident from the CF substrate, in which the lenticular lens has a periodic structure smaller than a periodicity of arrangement of sub-pixels.Type: GrantFiled: February 23, 2018Date of Patent: July 27, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Naru Usukura, Ryuzo YuKi
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Publication number: 20200326470Abstract: The light input efficiency of a light-emitting device into a circular disc-shaped or elliptical disc-shaped light guide plate is increased. A light-emitting device includes a first light-emitting unit (12a) that includes a plurality of light-emitting elements (L1 to L5) arranged curvilinearly, a second light-emitting unit (12b) that includes a plurality of light-emitting elements (L6 to L10) arranged curvilinearly, and a coupling portion (12c) that is disposed so as to coincide with a region (SA) sandwiched by the first and second light-emitting units and couples the first and second light-emitting units.Type: ApplicationFiled: August 7, 2017Publication date: October 15, 2020Inventors: Youzou KYOUKANE, Hisashi WATANABE, Hirotoshi YASUNAGA, Ryuzo YUKI
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Patent number: 10705375Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface of the light guide plate. A gap is present between light emitting surfaces of the LEDs and the light entering end surface of the light guide plate. Each LED includes a light emitting surface having a dimension in the thickness direction of the light guide plate smaller than a dimension of the light entering end surface in the thickness direction. Each LED is disposed such that the center of the light emitting surface is opposed to the center of the light entering end surface.Type: GrantFiled: October 21, 2016Date of Patent: July 7, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Hisashi Watanabe, Hirotoshi Yasunaga, Ryuzo Yuki, Mitsuhiro Murata
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Patent number: 10670917Abstract: A lighting device includes LEDs, a light guide plate, and a frame. The light guide plate includes a light guide plate hole portion passing through in a thickness direction, a light entering surface, and a light exiting surface. The frame surrounds the light guide plate. The frame includes an outer peripheral wall portion and an inner peripheral wall portion. The outer peripheral wall portion opposes an outer peripheral end face of the light guide plate. The inner peripheral wall portion inserted to the light guide plate hole portion opposes an inner peripheral end face of the light guide plate on an inner side of the light guide plate hole portion. The inner peripheral wall portion has a configuration in which the opposing surface has a lower light reflectivity than that of an opposing surface of the outer peripheral wall portion.Type: GrantFiled: September 28, 2016Date of Patent: June 2, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Hirotoshi Yasunaga, Mitsuhiro Murata, Hisashi Watanabe, Ryuzo Yuki
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Publication number: 20200018956Abstract: The present disclosure provides a display apparatus capable of suppressing screen-door effect without requiring alignment between an optical element and a pixel. A display apparatus (1) includes a CF substrate (13) that determines a color of a sub-pixel corresponding to a color element, for each of a plurality of pixels, and a lenticular lens (14) that widens a full width at half maximum of luminance of emitted light more than a full width at half maximum of luminance of light incident from the CF substrate, in which the lenticular lens has a periodic structure smaller than a periodicity of arrangement of sub-pixels.Type: ApplicationFiled: February 23, 2018Publication date: January 16, 2020Inventors: NARU USUKURA, RYUZO YUKI
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Publication number: 20200012101Abstract: The size and weight of an eyepiece are reduced while the diameter of each eyepiece is maintained. In a head-mounted display (1) of the invention of a display region of a display device (102), an area of an image which a user views through the eyepiece (105) is an effective display region, and an area other than the area of the image which the user views is an ineffective display region, each of the display devices (102) has a shape in which the ineffective display region is cut out from the display region.Type: ApplicationFiled: March 26, 2018Publication date: January 9, 2020Inventors: RYUZO YUKI, TOMOHIRO KIMURA, TAKAYUKI NISHIYAMA, NARU USUKURA, TAKESHI MASUDA
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Patent number: 10527778Abstract: A lighting device includes a light guide plate, a first light source, a second light source, and a case. The light guide plate includes plate surfaces and an outer peripheral surface. One of the plate surfaces is configured as a light exiting surface. Sections of the outer peripheral surface on opposite sides from each other relative to the center of the light exiting surface are configured as a first light entering surface and a second light entering surface, respectively. The first light source is disposed opposite the first light entering surface. The second light source is disposed opposite the second light entering surface. The case includes an annular wall portion surrounding an outer circumference of the light guide plate, the first light source, and the second light source. The annular wall portion includes light source non-disposing areas between the first light entering surface and the second light entering surface.Type: GrantFiled: September 8, 2016Date of Patent: January 7, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Ryuzo Yuki, Katsutoshi Kikuchi, Hayato Nakamura, Makoto Yoshimura, Hiromi Enomoto, Mitsuhiro Murata, Hisashi Watanabe, Hirotoshi Yasunaga
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Publication number: 20200005717Abstract: A blur (fuzziness) of an image is suppressed. A liquid crystal display device includes an LCD controller configured to write image data, a backlight configured to display an image, a visual line tracking unit configured to specify a position of a viewpoint, and a backlight controller configured to control a light emitting timing of the backlight. The backlight controller controls the light emitting timing of the backlight depending on the specified position of the viewpoint.Type: ApplicationFiled: March 1, 2018Publication date: January 2, 2020Inventors: TAKESHI MASUDA, RYUZO YUKI, KEIICHI YAMAMOTO
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Patent number: 10502888Abstract: A lighting device includes a light guide plate (14) having a light exit surface (14A) having a substantially circular shape and a light entrance surface (14C) extending along an entire periphery of an outer edge of the light exit surface (14A), an LED (31A) opposite the light entrance surface (14C), and an LED (32A) that is opposite the light entrance surface (14C) and is connected in parallel to the LED (31A) and the LED (32A) is arranged opposite from the LED (31A) with having a center (C1) of the light exit surface (14A) therebetween.Type: GrantFiled: February 12, 2016Date of Patent: December 10, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hisashi Watanabe, Ryuzo Yuki, Shinya Kadowaki, Mitsuhiro Murata, Takeshi Ishida, Takeshi Masuda
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Patent number: 10488704Abstract: A backlight device includes LEDs, a light guide plate, a LED board, and a bonding member. The light guide plate has a light entrance edge surface that is a part of peripheral edge surfaces thereof and through which light from the LED enters, a light exiting plate surface that is one of plate surfaces thereof and through which light exits, and another one of the plate surfaces as an opposite plate surface. The LED board has a mounting surface on which the LEDs are mounted, and has a part overlapping a part of the light guide plate on an opposite plate surface side. The bonding member is bonded to the mounting surface of the part of the LED board and to the opposite plate surface of the part of the light guide plate and the bonding member includes a light absorbing bonding layer containing light absorbing material.Type: GrantFiled: June 10, 2016Date of Patent: November 26, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Ryuzo Yuki, Mitsuhiro Murata, Hisashi Watanabe, Hirotoshi Yasunaga
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Patent number: 10466402Abstract: An illumination device according to the present invention includes: a light source row in which a plurality of light sources are aligned in a row; a light guide plate that includes a plate-shaped main body with an end thereof facing the light source row, a light-receiving portion that is arranged on the end of the main body and into which light from the light sources enters, plate-shaped side extensions that are arranged on the sides of the main body and that extend outwards further than the light-receiving portion, and a light-exiting portion that is arranged on front surfaces of the main body and the side extensions and that allows light that enters via the light-receiving portion to exit; and a supply unit that supplies light to the side extensions.Type: GrantFiled: May 15, 2015Date of Patent: November 5, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hirotoshi Yasunaga, Takeshi Ishida, Mitsuhiro Murata, Ryuzo Yuki
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Patent number: 10353132Abstract: A liquid crystal display device includes a liquid crystal panel, a liquid crystal panel flexible circuit board, and a backlight unit. The backlight unit includes LEDs, a light guide plate, a chassis, and an LED board. The light guide plate has an outer shape conforming to an outer shape of the liquid crystal panel. The chassis including a sidewall portion which surrounds the light guide plate and the LEDs. The LED board has an outer shape conforming to the outer shape of the light guide plate. The LEDs are mounted on the LED board at intervals in the circumferential direction. The LED board includes LED mount portions, and LED interval portions. The LED interval portions include a cut-out LED interval portion. Between the cut-out LED interval portion and the sidewall portion, a liquid crystal panel flexible circuit board passing space is provided.Type: GrantFiled: December 18, 2015Date of Patent: July 16, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Shinya Kadowaki, Takeshi Ishida, Mitsuhiro Murata, Ryuzo Yuki, Hisashi Watanabe, Takeshi Masuda
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Patent number: 10345507Abstract: A lighting device includes a light source emitting light having an orientation distribution around an optical axis, a light guide plate having a hole and including a light entrance surface, a light exit surface, a non-light exit portion, and a light receiving surface, and a reflecting portion. The light entrance surface is opposite the light source such that the optical axis overlaps the hole. The non-light exit portion is the hole and surrounded by the light exit surface. The light receiving surface is next to the light entrance surface and near the non-light exit portion and receives maximum inclination light including light inclined at a largest angle with respect to the optical axis in a plan view. The reflecting portion is arranged opposite the light receiving surface and reflects the maximum inclination light from the light receiving surface toward the non-light exit portion.Type: GrantFiled: October 29, 2015Date of Patent: July 9, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Ryuzo Yuki, Mitsuhiro Murata, Takeshi Ishida