Patents by Inventor Keiichi Ina

Keiichi Ina 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).

  • Patent number: 11543698
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a plurality of pixels. Each of the pixels has a reflection region for performing display in a reflective mode. The first substrate includes a pixel electrode provided in each of the pixels and a reflection layer positioned opposite to the liquid crystal layer with respect to the pixel electrode. The reflection layer has a first region positioned in each of the pixels and a second region positioned between any two pixels adjacent to each other. Voltages of an identical polarity are applied to the liquid crystal layer for any two pixels adjacent to each other in a row direction, for any two pixels adjacent to each other in a column direction, or for all the pixels.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: January 3, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Sasaki, Ming Ni, Takashi Satoh, Keiichi Ina, Shuji Nishi
  • Patent number: 11480827
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a vertical alignment liquid crystal layer, and a plurality of pixels. Each of the pixels includes a reflective region for performing display in a reflection mode. The first substrate includes a reflective electrode including a first region located within each of the plurality of pixels and a second region located between any two pixels, of the plurality of pixels, adjacent to each other, a transparent insulating layer provided to cover the reflective electrode, and a pixel electrode formed from a transparent conductive material and provided on the transparent insulating layer in each of the plurality of pixels. The second substrate includes a counter electrode provided to be opposite to the pixel electrode and the reflective electrode.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: October 25, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Sasaki, Takashi Satoh, Ming Ni, Shuji Nishi, Keiichi Ina
  • Patent number: 11402679
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a vertical alignment liquid crystal layer, and a plurality of pixels. Each of the pixels includes a reflective region for performing display in a reflection mode. The first substrate includes a reflective electrode including a first region located within each of the plurality of pixels and a second region located between any two pixels, of the plurality of pixels, adjacent to each other, a transparent insulating layer provided to cover the reflective electrode, and a pixel electrode formed from a transparent conductive material and provided on the transparent insulating layer in each of the plurality of pixels. The second substrate includes a counter electrode.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: August 2, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Sasaki, Takashi Satoh, Ming Ni, Shuji Nishi, Keiichi Ina
  • Publication number: 20220137446
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a vertical alignment liquid crystal layer, and a plurality of pixels. Each of the pixels includes a reflective region for performing display in a reflection mode. The first substrate includes a reflective electrode including a first region located within each of the plurality of pixels and a second region located between any two pixels, of the plurality of pixels, adjacent to each other, a transparent insulating layer provided to cover the reflective electrode, and a pixel electrode formed from a transparent conductive material and provided on the transparent insulating layer in each of the plurality of pixels. The second substrate includes a counter electrode.
    Type: Application
    Filed: October 21, 2021
    Publication date: May 5, 2022
    Inventors: Takahiro SASAKI, Takashi SATOH, Ming NI, Shuji NISHI, Keiichi INA
  • Publication number: 20220137457
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a vertical alignment liquid crystal layer, and a plurality of pixels. Each of the pixels includes a reflective region for performing display in a reflection mode. The first substrate includes a reflective electrode including a first region located within each of the plurality of pixels and a second region located between any two pixels, of the plurality of pixels, adjacent to each other, a transparent insulating layer provided to cover the reflective electrode, and a pixel electrode formed from a transparent conductive material and provided on the transparent insulating layer in each of the plurality of pixels. The second substrate includes a counter electrode provided to be opposite to the pixel electrode and the reflective electrode.
    Type: Application
    Filed: October 26, 2021
    Publication date: May 5, 2022
    Inventors: TAKAHIRO SASAKI, TAKASHI SATOH, MING NI, SHUJI NISHI, KEIICHI INA
  • Patent number: 11322523
    Abstract: To reduce a reduction in the quality of a displayed image in portions corresponding to source lines including detour portions in a display area. Gate lines (20) and source lines (30), which intersect with each other, extend on an insulating substrate (1) so as to detour an opening area (A1). Separated portions (24) are provided as lower shielding electrodes (23) in an inner non-display area (A2) so as to be overlapped with source detour portions (31) of the source lines (30) in a plan view.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: May 3, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi Ina, Yasuyoshi Kaise
  • Patent number: 11164897
    Abstract: The display device includes, on a substrate, a plurality of pixel electrodes, M (M is a natural number equal to or greater than three) counter electrodes disposed opposite the plurality of pixel electrodes, M counter electrode wiring lines connected with M counter electrodes, and N (N is a natural number and 2?N<M) common voltage wiring lines connected to the M counter electrode wiring lines. Counter electrode wiring lines connected to counter electrodes adjacent to each other are connected to common voltage wiring lines that are different from each other.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: November 2, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shige Furuta, Hiroyuki Adachi, Keiichi Ina, Takahiro Yamaguchi, Yuhichiroh Murakami
  • Patent number: 11150520
    Abstract: Each pixel has a reflection region to produce a display in reflection mode. The first substrate includes: a pixel electrode for each pixel; and a first vertical alignment film. The second substrate includes: an opposite electrode opposite the pixel electrodes; and a second vertical alignment film. Of the first and second vertical alignment films, only the second vertical alignment film exerts an alignment-regulating force that determines a pretilt angle. Each pixel electrode includes a plurality of subpixel electrodes. The opposite electrode has an opening in an area corresponding to one of four corners of at least one of the plurality of subpixel electrodes. Liquid crystal molecules in a thickness-wise middle portion of the liquid crystal layer on the subpixel electrode are oriented toward the opening.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: October 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi Ina, Takashi Satoh, Takahiro Sasaki
  • Publication number: 20210255509
    Abstract: Each pixel has a reflection region to produce a display in reflection mode. The first substrate includes: a pixel electrode for each pixel; and a first vertical alignment film. The second substrate includes: an opposite electrode opposite the pixel electrodes; and a second vertical alignment film. Of the first and second vertical alignment films, only the second vertical alignment film exerts an alignment-regulating force that determines a pretilt angle. Each pixel electrode includes a plurality of subpixel electrodes. The opposite electrode has an opening in an area corresponding to one of four corners of at least one of the plurality of subpixel electrodes. Liquid crystal molecules in a thickness-wise middle portion of the liquid crystal layer on the subpixel electrode are oriented toward the opening.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 19, 2021
    Inventors: KEIICHI INA, TAKASHI SATOH, TAKAHIRO SASAKI
  • Publication number: 20210181576
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a plurality of pixels. Each of the pixels has a reflection region for performing display in a reflective mode. The first substrate includes a pixel electrode provided in each of the pixels and a reflection layer positioned opposite to the liquid crystal layer with respect to the pixel electrode. The reflection layer has a first region positioned in each of the pixels and a second region positioned between any two pixels adjacent to each other. Voltages of an identical polarity are applied to the liquid crystal layer for any two pixels adjacent to each other in a row direction, for any two pixels adjacent to each other in a column direction, or for all the pixels.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Inventors: TAKAHIRO SASAKI, MING NI, TAKASHI SATOH, KEIICHI INA, SHUJI NISHI
  • Patent number: 11036106
    Abstract: A decline in the display quality in portion areas corresponding to source lines that run through an inner non-display area in a display area is reduced. The arrangement of source lines that run through an inner non-display area is changed in an upper change area and a lower change area so that the source lines that are simultaneously driven are not adjacent to each other in a display area and are adjacent to each other in a passage area.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 15, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuyoshi Kaise, Keiichi Ina, Yuhichiroh Murakami, Shige Furuta, Hidekazu Yamanaka
  • Patent number: 11009756
    Abstract: A display device includes a reflective electrode, a driving circuit section, a wiring, and a wiring expansion section. The reflective electrode is divided into split electrodes arranged with spaces, which transmit light, respectively provided thereamong and reflects light. The driving circuit section drives the reflective electrode. The wiring is connected to at least the split electrodes and the driving circuit section and composed of a conductive material having a light transmission property. The wiring expansion section is formed to expand in the wiring to overlap the space.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 18, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi Ina, Shuji Nishi, Takashi Satoh
  • Publication number: 20210141277
    Abstract: A decline in the display quality in portion areas corresponding to source lines that run through an inner non-display area in a display area is reduced. The arrangement of source lines that run through an inner non-display area changed in an upper change area and a lower change area so that the source lines that are simultaneously driven are not adjacent to each other in a display area and are adjacent to each other in a passage area.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 13, 2021
    Inventors: Yasuyoshi KAISE, Keiichi INA, Yuhichiroh MURAKAMI, Shige FURUTA, Hidekazu YAMANAKA
  • Publication number: 20210126017
    Abstract: The display device includes, on a substrate, a plurality of pixel electrodes, M (M is a natural number equal to or greater than three) counter electrodes disposed opposite the plurality of pixel electrodes, M counter electrode wiring lines connected with M counter electrodes, and N (N is a natural number and 2?N<M) common voltage wiring lines connected to the M counter electrode wiring lines. Counter electrode wiring lines connected to counter electrodes adjacent to each other are connected to common voltage wiring lines that are different from each other.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 29, 2021
    Inventors: Shige FURUTA, Hiroyuki ADACHI, Keiichi INA, Takahiro YAMAGUCHI, Yuhichiroh MURAKAMI
  • Patent number: 10928684
    Abstract: A display device includes a color filter substrate, an array substrate, a liquid crystal layer, a protection layer, and a plurality of main spacers. The color filter substrate includes a display region, a hole frame region, and a hole region. Further, in a thickness direction of the hole region of the color filter, an organic flattening film is present on a surface of the array substrate on the color filter substrate side at parts corresponding to positions of the main spacers.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: February 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keiichi Ina, Jin Nakamura, Hisashi Nagata, Isao Takahashi, Yasuyoshi Kaise
  • Publication number: 20200310186
    Abstract: A display device includes a color filter substrate, an array substrate, a liquid crystal layer, a protection layer, and a plurality of main spacers. The color filter substrate includes a display region, a hole frame region, and a hole region. Further, in a thickness direction of the hole region of the color filter, an organic flattening film is present on a surface of the array substrate on the color filter substrate side at parts corresponding to positions of the main spacers.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 1, 2020
    Inventors: KEIICHI INA, JIN NAKAMURA, HISASHI NAGATA, ISAO TAKAHASHI, YASUYOSHI KAISE
  • Publication number: 20200301220
    Abstract: A display device includes a through-hole passing through a display region, a plurality of signal lines, and a plurality of scanning lines. Each of the plurality of signal lines includes a first straight line portion and a first bypass portion. Each of the plurality of scanning lines is wired in a layer different from a layer of the plurality of signal lines, and includes a second straight line portion and a second bypass portion. The first straight line portion of each signal line and the second bypass portion of each scanning line intersect each other in a plan view, and the first bypass portion of each signal line and the second bypass portion of each scanning line are wired in different regions from each other.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 24, 2020
    Inventors: Keiichi INA, Yasuyoshi KAISE
  • Publication number: 20200168633
    Abstract: To reduce a reduction in the quality of a displayed image in portions corresponding to source lines including detour portions in a display area. Gate lines (20) and source lines (30), which intersect with each other, extend on an insulating substrate (1) so as to detour an opening area (A1). Separated portions (24) are provided as lower shielding electrodes (23) in an inner non-display area (A2) so as to be overlapped with source detour portions (31) of the source lines (30) in a plan view.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 28, 2020
    Inventors: KEIICHI INA, YASUYOSHI KAISE
  • Publication number: 20200142269
    Abstract: A display device includes a reflective electrode, a driving circuit section, a wiring, and a wiring expansion section. The reflective electrode is divided into split electrodes arranged with spaces, which transmit light, respectively provided thereamong and reflects light. The driving circuit section drives the reflective electrode. The wiring is connected to at least the split electrodes and the driving circuit section and composed of a conductive material having a light transmission property. The wiring expansion section is formed to expand in the wiring to overlap the space.
    Type: Application
    Filed: October 25, 2019
    Publication date: May 7, 2020
    Inventors: KEIICHI INA, SHUJI NISHI, TAKASHI SATOH
  • Publication number: 20200050036
    Abstract: A display device includes a first substrate, a second substrate disposed opposite the first substrate, pixels arranged in a matrix within a plate surface of the first substrate and the second substrate, a first line disposed on the second substrate and extending in a first direction along the plate surface, a first light blocking section disposed on the first substrate and between the pixels that are next to each other in the first direction and extending in a second direction that is along the plate surface and crosses the first direction, and a second light blocking section disposed on the second substrate and between the pixels that are next to each other in the second direction, extending in the first direction, and overlapping the first line.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 13, 2020
    Inventors: Keiichi INA, Yasuyoshi KAISE