Patents by Inventor Tomohisa Onishi

Tomohisa Onishi 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).

  • Publication number: 20200278489
    Abstract: An illumination device is provided and includes a light guide; a light emitting unit facing the light guide; a wiring substrate provided on the light emitting unit; and a frame surrounding the light guide and the light emitting unit, wherein the wiring substrate has a first edge and a second edge which extend in the first direction, and a third edge which connects the first edge and the second edge, the frame has a fourth edge facing the third edge; the third edge and the fourth edge are spaced apart from each other and form a trench which communicates with an outside of the illumination device, and a length of the third edge and a length of the fourth edge along the trench are larger than a distance between the first edge and the second edge in a second direction intersecting the first direction.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Toji AOSHIMA, Shiori AKAMATSU, Takashi OTA, Tomohisa ONISHI
  • Patent number: 10663645
    Abstract: According to one embodiment, an illumination device includes a light guide, a frame surrounding the light guide, a light emitting unit located between the light guide and the frame, and a wiring substrate electrically connected to the light emitting unit. The wiring substrate includes a convex portion projecting in a first direction as seen in plan view. The frame includes a concave portion facing the convex portion as seen in plan view. The concave portion is spaced apart from the convex portion.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: May 26, 2020
    Assignee: Japan Display Inc.
    Inventors: Toji Aoshima, Shiori Akamatsu, Takashi Ota, Tomohisa Onishi
  • Patent number: 10578922
    Abstract: This invention reduces or prevents a phenomenon where a screen close to a light source becomes yellowed. A liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes a light guide plate 10 and white LEDs 21 arrayed in a first direction on a plane of incidence 11 of the light guide plate 10. The white LEDs 21 each includes, in the first direction on a light-emitting surface, a central area occupied by a blue spectrum more densely than at adjacent sides of the central area. Incident plane protrusions 111, each extending in a thickness direction of the light guide plate 10, are formed on a section corresponding to the area having the dense blue spectrum of each LED 21, at the plane of incidence 11 of the light guide plate 10.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasuhisa Shiraishi, Tomohisa Onishi
  • Publication number: 20190094454
    Abstract: According to one embodiment, an illumination device includes a light guide, a frame surrounding the light guide, a light emitting unit located between the light guide and the frame, and a wiring substrate electrically connected to the light emitting unit. The wiring substrate includes a convex portion projecting in a first direction as seen in plan view. The frame includes a concave portion facing the convex portion as seen in plan view. The concave portion is spaced apart from the convex portion.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 28, 2019
    Inventors: Toji AOSHIMA, Shiori AKAMATSU, Takashi OTA, Tomohisa ONISHI
  • Publication number: 20180120645
    Abstract: This invention reduces or prevents a phenomenon where a screen close to a light source becomes yellowed. A liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes a light guide plate 10 and white LEDs 21 arrayed in a first direction on a plane of incidence 11 of the light guide plate 10. The white LEDs 21 each includes, in the first direction on a light-emitting surface, a central area occupied by a blue spectrum more densely than at adjacent sides of the central area. Incident plane protrusions 111, each extending in a thickness direction of the light guide plate 10, are formed on a section corresponding to the area having the dense blue spectrum of each LED 21, at the plane of incidence 11 of the light guide plate 10.
    Type: Application
    Filed: December 26, 2017
    Publication date: May 3, 2018
    Inventors: Yasuhisa SHIRAISHI, Tomohisa Onishi
  • Patent number: 9885913
    Abstract: This invention reduces or prevents a phenomenon where a screen close to a light source becomes yellowed. A liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes a light guide plate 10 and white LEDs 21 arrayed in a first direction on a plane of incidence 11 of the light guide plate 10. The white LEDs 21 each includes, in the first direction on a light-emitting surface, a central area occupied by a blue spectrum more densely than at adjacent sides of the central area. Incident plane protrusions 111, each extending in a thickness direction of the light guide plate 10, are formed on a section corresponding to the area having the dense blue spectrum of each LED 21, at the plane of incidence 11 of the light guide plate 10.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 6, 2018
    Assignee: Japan Display Inc.
    Inventors: Yasuhisa Shiraishi, Tomohisa Onishi
  • Patent number: 9594207
    Abstract: A light emitting diode (LED) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (LED) mounted in a main body mounted on a substrate and generating a light source; and an LED package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 14, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geun-Young Kim, Tomohisa Onishi, Jung-Hun Lee, Young-Taek Kim, Jong-Jin Park, Mi-Jeong Yun, Young-Sam Park, Hun-Joo Hahm, Hyung-Suk Kim, Seong-Yeon Han, Do-Hun Kim, Dae-Yeon Kim, Dae-Hyun Kim, Jung-Kyu Park
  • Publication number: 20160116667
    Abstract: This invention reduces or prevents a phenomenon where a screen close to a light source becomes yellowed. A liquid crystal display device includes a liquid crystal display panel and a backlight. The backlight includes a light guide plate 10 and white LEDs 21 arrayed in a first direction on a plane of incidence 11 of the light guide plate 10. The white LEDs 21 each includes, in the first direction on a light-emitting surface, a central area occupied by a blue spectrum more densely than at adjacent sides of the central area. Incident plane protrusions 111, each extending in a thickness direction of the light guide plate 10, are formed on a section corresponding to the area having the dense blue spectrum of each LED 21, at the plane of incidence 11 of the light guide plate 10.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 28, 2016
    Inventors: Yasuhisa SHIRAISHI, Tomohisa ONISHI
  • Publication number: 20150198762
    Abstract: A light emitting diode (LED) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (LED) mounted in a main body mounted on a substrate and generating a light source; and an LED package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Geun-Young KIM, Tomohisa ONISHI, Jung-Hun LEE, Young-Taek KIM, Jong-Jin PARK, Mi-Jeong YUN, Young-Sam PARK, Hun-Joo HAHM, Hyung-Suk KIM, Seong-Yeon HAN, Do-Hun KIM, Dae-Yeon KIM, Dae-Hyun KIM, Jung-Kyu PARK
  • Patent number: 9022632
    Abstract: A light emitting diode (LED) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (LED) mounted in a main body mounted on a substrate and generating a light source; and an LED package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-Young Kim, Tomohisa Onishi, Jung-Hun Lee, Young-Taek Kim, Jong-Jin Park, Mi-Jeong Yun, Young-Sam Park, Hun-Joo Hahm, Hyung-Suk Kim, Seong-Yeon Han, Do-Hun Kim, Dae-Yeon Kim, Dae-Hyun Kim, Jung-Kyu Park
  • Patent number: 8269913
    Abstract: There is provided a liquid crystal display device using a light guide plate dividing method that clearly establishes a structure for fixing divided light guide plates. An LED backlight unit according to an aspect of the invention may include: a lower cover having a mounting hole therein; a board provided on the lower cover and having a through hole facing the mounting hole of the lower cover; a plurality of LED packages mounted onto the board and supplying light; a light guide plate provided on the lower cover and guiding light supplied from the LED packages; and a fixation unit inserted into the mounting hole and the through hole so that the light guide plate is pressed against the lower cover.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Tomohisa Onishi
  • Publication number: 20110199787
    Abstract: A light emitting diode (LED) package includes: a main body mounted on a substrate; a light emitting diode that is mounted in the main body and emits light; and a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted. A backlight unit includes: a light guide plate configured to allow a light source to proceed to a liquid crystal panel; a light emitting diode (LED) mounted in a main body mounted on a substrate and generating a light source; and an LED package having a lead frame exposed to allow the main body to be selectively top-mounted or side-mounted, and being mounted on the light guide plate.
    Type: Application
    Filed: July 3, 2009
    Publication date: August 18, 2011
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Geun-Young Kim, Tomohisa Onishi, Jung-Hun Lee, Young-Taek Kim, Jong-Jin Park, Mi-Jeong Yun, Young-Sam Park, Hun-Joo Hahm, Hyung-Suk Kim, Seong-Yeon Han, Do-Hun Kim, Dae-Yeon Kim, Dae-Hyun Kim, Jung-Kyu Park
  • Publication number: 20100188601
    Abstract: There is provided a liquid crystal display device using a light guide plate dividing method that clearly establishes a structure for fixing divided light guide plates. An LED backlight unit according to an aspect of the invention may include: a lower cover having a mounting hole therein; a board provided on the lower cover and having a through hole facing the mounting hole of the lower cover; a plurality of LED packages mounted onto the board and supplying light; a light guide plate provided on the lower cover and guiding light supplied from the LED packages; and a fixation unit inserted into the mounting hole and the through hole so that the light guide plate is pressed against the lower cover.
    Type: Application
    Filed: January 29, 2010
    Publication date: July 29, 2010
    Inventor: Tomohisa Onishi
  • Patent number: 6174064
    Abstract: A light guide panel includes a front surface portion, a back surface portion located on the opposite side of the front surface portion, and an incidence end surface portion located on one side of the front and the back surface portions. The incidence end surface portion is configured for introducing light from a light source into the light guide panel. A plurality of optical elements are randomly disposed on the front and/or back surface portions. The optical elements typically have a maximum diameter in a range from 10 &mgr;m to 150 &mgr;m and are configured for emanating light propagating in the light guide panel from the front surface portion and/or back surface portion to the outside of the light guide panel.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: January 16, 2001
    Assignee: Nippon Denyo Company
    Inventors: Kalil Kalantar, Shingo Matsumoto, Tomohisa Onishi