Patents by Inventor Masaaki Kabe

Masaaki Kabe 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: 20210109414
    Abstract: A display device includes: a first pixel including a first sub-pixel, a second sub-pixel, and a third sub-pixel; and a second pixel including the first sub-pixel, the second sub-pixel, and a fourth sub-pixel. The first pixel and the second pixel are alternately arranged in a row direction and a column direction. The third sub-pixel and the fourth sub-pixel are alternately arranged in the column direction. A branch electrode in one of two first sub-pixels adjacent in the column direction extends in a first direction, and a branch electrode in the other thereof extends in a second direction. A branch electrode in one of two second sub-pixels adjacent in the column direction extends in the first direction, and a branch electrode in the other thereof extends in the second direction. Each branch electrode in the third sub-pixel and the fourth sub-pixel includes a bending portion.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Masaaki KABE, Jin HIROSAWA, Hayato KURASAWA
  • Patent number: 10901272
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate provided with a first electrode portion that includes a plurality of strip electrodes arranged in a first direction and that is configured to generate a transverse electric field in the first direction; a liquid crystal layer in which liquid crystal molecules are oriented in the first direction when the transverse electric field is not generated; a second substrate facing the first substrate across the liquid crystal layer; and an electrode provided at the second substrate.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 26, 2021
    Assignee: Japan Display Inc.
    Inventors: Masaaki Kabe, Kojiro Ikeda, Shinichiro Oka
  • Patent number: 10854154
    Abstract: A method of driving an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: December 1, 2020
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Patent number: 10802354
    Abstract: According to one embodiment, a display device includes a display panel, a light source, a light guide and a prism sheet. The display panel includes a display area in which unit pixels each containing first sub-pixels and second sub-pixels are arranged along a first direction and a second direction. In the display area, the first sub-pixels have a width different from that of the second sub-pixel in at least one of the first direction and the second direction, or each unit pixel contains different numbers of first sub-pixels and second sub-pixels. The prism sheet is interposed between the light guide and the display panel and includes prisms extending along a third direction inclined with respect to the second direction by an acute angle of inclination.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: October 13, 2020
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Akira Sakaigawa, Masaaki Kabe, Kojiro Ikeda, Amane Higashi
  • Patent number: 10789899
    Abstract: According to an aspect, a display device includes an image display panel including: sub-pixel rows, in each of which sub-pixels for displaying different colors are periodically arrayed in a first direction, are regularly arranged in a second direction different from the first direction; signal lines in parallel to sub-pixel columns in which the sub-pixels are successively arranged in the second direction; and scan lines that sequentially select each sub-pixel row. Each of m (integer ?2) selector signals selects n (integer ?1) pairs of the signal lines each supplied with two signals each having a mutually reverse polarity, within a period during which each sub-pixel row is selected by a corresponding scan line, and a sum of potential changes of the n pairs of the signal lines selected by each selector signal is substantially zero when each sub-pixel row is sequentially selected by the corresponding scan line.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: September 29, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Jin Ota
  • Patent number: 10777113
    Abstract: A display device includes a display unit in which a plurality of pixels are arranged. One pixel includes four sub-pixels, and the display unit includes: a pixel including one each of four sub-pixels of four different colors that are a first color, a second color, a third color, and a fourth color; and a pixel including four sub-pixels, where two of the four sub-pixels are identical and are one of sub-pixels of the first color, the second color, and the third color, and remaining two of the four sub-pixels are different two of the sub-pixels of the first color, the second color, and the third color but are not one of the identical sub-pixels.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: September 15, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Akira Sakaigawa
  • Patent number: 10714029
    Abstract: A display device includes a display unit having a display surface on which pixels are arranged in row and column directions. Each pixel includes subpixels having different colors. Subpixels in the pixels include a first subpixel including an electrode having an opening with a longitudinal direction along a first direction and a second subpixel including an electrode having an opening with a longitudinal direction along a second direction. The first and second directions are different from the row and column directions. Subpixels arranged in a third direction are the first or second subpixels. The number of subpixels constituting one color pattern in a fourth direction is 2?. The number of subpixels in which the first and second subpixels arranged in the fourth direction constitute one cycle is 4?. The third direction is one of the row and column directions, and the fourth direction is the other direction.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: July 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe
  • Publication number: 20200103700
    Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Chikyu Nakaoka, Masaaki Kabe, Tatsuya Yata, Kojiro Ikeda
  • Patent number: 10565944
    Abstract: According to an aspect, a display device includes a plurality of pixels. Each pixel includes two sub-pixels adjacent to each other in a first direction. Each sub-pixel has one of three colors allocated thereto. Two colors of the two sub-pixels included in the pixel are different. The two colors of the two sub-pixels and a positional relation between the two sub-pixels are the same in each of the pixels arrayed in a second direction. One color not allocated to the two sub-pixels included in a first pixel out of the three colors is allocated to at least one of the sub-pixels included in second pixels adjacent to the first pixel in the first direction. The sub-pixels having the same color allocated thereto are arranged along the first direction with one sub-pixel interposed therebetween, the one sub-pixel having another color allocated thereto.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: February 18, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Chikyu Nakaoka
  • Publication number: 20200050062
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate provided with a first electrode portion that includes a plurality of strip electrodes arranged in a first direction and that is configured to generate a transverse electric field in the first direction; a liquid crystal layer in which liquid crystal molecules are oriented in the first direction when the transverse electric field is not generated; a second substrate facing the first substrate across the liquid crystal layer; and an electrode provided at the second substrate.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Applicant: Japan Display Inc.
    Inventors: Masaaki KABE, Kojiro Ikeda, Shinichiro Oka
  • Patent number: 10559235
    Abstract: Disclosed herein is a display apparatus including: a first pixel including three sub-pixels for displaying three primary colors respectively; and a second pixel including three sub-pixels for displaying two colors selected among the three primary colors and a predetermined color other than the three primary colors, wherein, in the first pixel, the size of the display surface of a sub-pixel for displaying a specific color included in the three primary colors as a specific color missing from the second pixel is larger than each of the sizes of the display surfaces of the two other sub-pixels for displaying the two other primary colors respectively.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 11, 2020
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
  • Patent number: 10551694
    Abstract: According to one embodiment, a liquid crystal device includes a first substrate including a first electrode and a second electrode, a second substrate, a liquid crystal layer, and the second electrode is located on a side of the liquid crystal layer with respect to the first electrode and includes a first opening, the first opening is formed into a polygonal shape including a base portion and at least one projecting portion projecting from the base portion along a first direction, a width of the base portion along the first direction is greater than a width of the projecting portion along the first direction, and the liquid crystal layer exhibits transparency while no voltage being applied and scattering property while voltage being applied.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 4, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Shinichiro Oka, Chikyu Nakaoka
  • Patent number: 10540940
    Abstract: According to one embodiment, a display device, includes a first main pixel, wherein the first main pixel comprises a first sub-pixel displaying a first color, a second sub-pixel displaying a second color different from the first color, and a third sub-pixel displaying a third color different from the first and second colors, the first and second sub-pixels are arranged in a second direction, the first and third sub-pixels are arranged in a first direction, and the second and third sub-pixels are arranged in the first direction, and each of the first and second sub-pixels has a first length in the first direction, and the third sub-pixel has a second length smaller than the first length in the first direction.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: January 21, 2020
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Masaaki Kabe, Chikyu Nakaoka
  • Patent number: 10527893
    Abstract: A pixel array substrate structure includes: first and second planarizing films sequentially stacked on a substrate where a circuit unit is formed; and a relay wire formed between the first and second planarizing films, in which the relay wire electrically connects a first contact portion formed on the first planarizing film and connected to the circuit unit with a second contact portion formed at a position different from the first contact portion when seen from above, on the second planarizing film.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventors: Koichi Nagasawa, Masaya Tamaki, Shuji Hayashi, Masaaki Kabe, Yoko Fukunaga
  • Patent number: 10520776
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate provided with a first electrode portion that includes a plurality of strip electrodes arranged in a first direction and that is configured to generate a transverse electric field in the first direction; a liquid crystal layer in which liquid crystal molecules are oriented in the first direction when the transverse electric field is not generated; a second substrate facing the first substrate across the liquid crystal layer; and an electrode provided at the second substrate.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: December 31, 2019
    Assignee: Japan Display Inc.
    Inventors: Masaaki Kabe, Kojiro Ikeda, Shinichiro Oka
  • Patent number: 10514570
    Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 24, 2019
    Assignee: Japan Display Inc.
    Inventors: Chikyu Nakaoka, Masaaki Kabe, Tatsuya Yata, Kojiro Ikeda
  • Publication number: 20190371256
    Abstract: A method of driving an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: Japan Display Inc.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Patent number: 10438549
    Abstract: A method of driving an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: October 8, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Publication number: 20190259311
    Abstract: Disclosed herein is a display apparatus including: a first pixel including three sub-pixels for displaying three primary colors respectively; and a second pixel including three sub-pixels for displaying two colors selected among the three primary colors and a predetermined color other than the three primary colors, wherein, in the first pixel, the size of the display surface of a sub-pixel for displaying a specific color included in the three primary colors as a specific color missing from the second pixel is larger than each of the sizes of the display surfaces of the two other sub-pixels for displaying the two other primary colors respectively.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
  • Patent number: 10373533
    Abstract: Disclosed herein is a display apparatus including: a first pixel including three sub-pixels for displaying three primary colors respectively; and a second pixel including three sub-pixels for displaying two colors selected among the three primary colors and a predetermined color other than the three primary colors, wherein, in the first pixel, the size of the display surface of a sub-pixel for displaying a specific color included in the three primary colors as a specific color missing from the second pixel is larger than each of the sizes of the display surfaces of the two other sub-pixels for displaying the two other primary colors respectively.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: August 6, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki