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).

  • 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
  • Publication number: 20190259349
    Abstract: Luminance unevenness in a display area having an irregular shape is suppressed. A display panel is a display panel in which a cutout is provided, including: a display area in which sub pixels are provided; a non-display zone which is located between the cutout and the display area; a scanning signal line which is provided so as to pass through the display area and the non-display zone; an electric conductor which is at least partially located in the non-display zone; and an insulating film, the scanning signal line being provided so as to overlap with the electric conductor via the insulating film.
    Type: Application
    Filed: December 19, 2018
    Publication date: August 22, 2019
    Inventors: Yasuyoshi KAISE, Keiichi INA, Yoshimizu MORIYA, Ryohji YAYOTANI, Shige FURUTA, Hidekazu YAMANAKA
  • Patent number: 9195101
    Abstract: Each of the pixel electrodes that are disposed in a liquid crystal display panel of one embodiment of the present invention is constituted of minutely patterned electrode regions (a first minutely patterned electrode region and a second minutely patterned electrode region), and one solid electrode region, and the length Lpix of each of the pixel electrodes in a direction along a data line, and the total length LB of the minutely patterned electrode regions satisfies the relationship of LB/Lpix=0.3 to 0.6.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: November 24, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Kawashima, Yasutoshi Tasaka, Keiichi Ina, Yoshimizu Moriya
  • Publication number: 20150261276
    Abstract: The present invention provides a liquid crystal display device. During a vertical scanning period, a positive signal voltage is sent from three data signal lines corresponding to first- to third-colored pixel columns that belong to one group, and a negative signal voltage is sent from three data signal lines corresponding to first- to third-colored pixel columns that belong to another group, the two groups being adjacent to one another. Within each group, the first-colored pixel column is arranged furthest upstream, the third-colored pixel column is arranged furthest downstream, a signal voltage is sent from a data signal line positioned upstream of the first-colored pixel column to the first-colored pixel column, and a signal voltage is sent from a data signal line positioned upstream of the third-colored pixel column to the third-colored pixel column.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 17, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Keiichi Ina, Yoshimizu Moriya, Shige Furuta
  • Publication number: 20150022771
    Abstract: Each of the pixel electrodes that are disposed in a liquid crystal display panel of one embodiment of the present invention is constituted of minutely patterned electrode regions (a first minutely patterned electrode region and a second minutely patterned electrode region), and one solid electrode region, and the length Lpix of each of the pixel electrodes in a direction along a data line, and the total length LB of the minutely patterned electrode regions satisfies the relationship of LB/Lpix=0.3 to 0.6.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 22, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuki Kawashima, Yasutoshi Tasaka, Keiichi Ina, Yoshimizu Moriya
  • Patent number: 8681080
    Abstract: A liquid crystal display device (1) includes a plurality of source bus lines (14), a plurality of gate bus lines (11) that cross the plurality of source bus lines (14), and a plurality of auxiliary capacitance lines (29) that extend in parallel with the gate bus lines (11). The liquid crystal display device (1) also includes a plurality of pixels (30) to (32) that respectively include TFTs (5), pixel electrodes (19), a common electrode (24), and a liquid crystal layer (4) and that are arranged in a matrix so as to correspond to the respective intersections of the gate bus lines (11) and the source bus lines (14). A pixel electrode (19a) for the pixel (31) is disposed in the pixel (30) that is adjacent to the pixel (31), and in a plan view, the gate bus line (11b) disposed in the pixel (31) and the pixel electrode (19a) for the pixel (31) are arranged apart from each other so as not to overlap.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: March 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Keiichi Ina, Yoshimizu Moriya
  • Publication number: 20140043576
    Abstract: A liquid crystal display panel (10) includes: an array substrate (1); a counter substrate (2); a liquid crystal layer (3); and spacer members (4). A plurality of pixels provided on the array substrate (1) include first pixels on which no spacer members (4) are provided and second pixels on which the respective spacer members (4) are provided. First pixel electrodes (20) provided in the respective first pixels each have: a first main part (21a); a second main part (21b); and a plurality of branch parts (22a through 22d) extending, in fixed directions. Second pixel electrodes (30) provided in the respective second pixels each have: a first main part (31a); a second main part (31b); a plurality of branch parts (32a through 32d) extending, in fixed directions; and a region on which a corresponding one of the spacer members (4) is provided and which is a solid electrode.
    Type: Application
    Filed: April 18, 2012
    Publication date: February 13, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Kawashima, Yasutoshi Tasaka, Keiichi Ina
  • Publication number: 20130071792
    Abstract: An amount of exposure of the photosensitive resin is controlled using a photomask in an exposure treatment. The photosensitive resin subjected to the exposure treatment is developed, thereby simultaneously forming a protrusion which regulates the alignment of liquid crystal molecules comprising the liquid crystal layer, and a photo spacer.
    Type: Application
    Filed: April 5, 2011
    Publication date: March 21, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasuyoshi Kaise, Mutsumi Nakajima, Keisuke Yoshida, Yasutoshi Tasaka, Keiichi Ina
  • Publication number: 20130027367
    Abstract: In a picture element (100), transmissive electrodes (130, 140) are connected to each other, and reflective electrodes (110, 120) adjacent to the transmissive electrodes are connected to the transmissive electrodes (130, 140), respectively. However, the reflective electrodes (110, 120) are not connected to each other. Alignment controlling structures (111, 121, 131, 141) are provided in regions which correspond to central parts of the respective electrodes, and an alignment controlling structure (151) is provided between the reflective electrodes (110, 120) which are not connected to each other. An alignment of liquid crystals is forcibly made stable in the vicinity of the reflective electrodes by providing the alignment controlling structure (151). It is thus possible to achieve a transflective liquid crystal display device having an excellent display characteristic, such as less roughness and fewer residual images.
    Type: Application
    Filed: March 22, 2011
    Publication date: January 31, 2013
    Inventors: Kaori Saitoh, Keisuke Yoshida, Yasutoshi Tasaka, Yoshimizu Moriya, Keiichi Ina
  • Publication number: 20130027649
    Abstract: Each pixel includes: a pixel electrode (1) which is rectangular and a counter electrode (2) which has an opening (5a), the pixel electrode (1) and the counter electrode (2) being provided so as to face each other; and a liquid crystal layer which is provided between the pixel electrode (1) and the counter electrode(2), in plan view, a distance being not less than 10 ?m and not more than 30 ?m between each of short sides of the pixel electrode (1) and the opening (5a).
    Type: Application
    Filed: April 6, 2011
    Publication date: January 31, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasutoshi Tasaka, Keiichi Ina, Kaori Saitoh