Patents by Inventor Amane Higashi

Amane Higashi 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: 20230009483
    Abstract: A measurement control device includes a sensing unit and a low-pass filter unit. The sensing unit outputs an air flow rate value corresponding to an air flow rate flowing through a flow path. The low-pass filter unit removes high-frequency components included in the air flow rate value input from the sensing unit. The measurement control device calculates a pulsation state that is a state of a pulsation occurring in the air flow rate based on the air flow rate value that has passed through the low-pass filter unit. The measurement control device corrects the air flow rate value using the pulsation state.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 12, 2023
    Inventors: Taichi WATANABE, Hiroyuki AKUZAWA, Amane HIGASHI
  • Publication number: 20220326058
    Abstract: A measurement control device includes: a sensing unit that outputs a signal according to an air flow rate; a pulsation state calculation unit that calculates a pulsation state of pulsation generated in the air flow rate using an output value of the sensing unit; and a pulsation error correction unit that corrects the air flow rate. The pulsation state calculation unit has an upper extreme value determination unit and a frequency calculation unit. The upper extreme value determination unit cancels the upper extreme value that has presently appeared, when the output value remains to be more than a predetermined lower threshold. The upper extreme value determination unit updates the lower threshold on a basis of at least one of air flow rate, pulsation frequency, or pulsation amplitude specified on the basis of the output value.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 13, 2022
    Inventors: Hiroyuki AKUZAWA, Taichi WATANABE, Amane HIGASHI
  • Publication number: 20210108952
    Abstract: A measurement control device measures an air flow rate using an output value of a sensing portion that outputs a signal according to the air flow rate, and outputs the measurement result of the air flow rate to a predetermined external device. The measurement control device includes: a pulsation state calculator that calculates a pulsation state, which is a state of pulsation generated in the air flow rate, by using the output value of the sensing portion instead of acquiring an output value from an external device; and a flow rate correcting unit that corrects the air flow rate using the pulsation state calculated by the pulsation state calculator.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 15, 2021
    Inventors: Noboru KITAHARA, Kengo ITO, Teruaki KAIFU, Amane HIGASHI
  • 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
  • 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: 20190171071
    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: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Applicant: Japan Display Inc.
    Inventors: Tae KUROKAWA, Akira Sakaigawa, Masaaki Kabe, Kojiro Ikeda, Amane Higashi
  • Patent number: 10269313
    Abstract: In a display device, pixels each including first to fourth subpixels that respectively display first to third primary colors and fourth color are arranged on an image display panel. A lighting unit emits light to the panel from the rear thereof. A control unit calculates a required luminance value for each block of the display surface of the panel based on an input image signal, determines a light source lighting amount of the lighting unit based on luminance distribution information on the lighting unit so as to satisfy the required luminance value, generates luminance information on each pixel based on the luminance distribution information and light source lighting amount, generates an output image signal that drives the subpixels based on the luminance information and input image signal, controls the lighting unit by the light source lighting amount, and controls the panel by the output image signal.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Tsutomu Harada, Naoyuki Takasaki, Akira Sakaigawa, Amane Higashi
  • Patent number: 10268089
    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: May 20, 2015
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Akira Sakaigawa, Masaaki Kabe, Kojiro Ikeda, Amane Higashi
  • Publication number: 20190051257
    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: October 15, 2018
    Publication date: February 14, 2019
    Applicant: Japan Display Inc.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Patent number: 10163410
    Abstract: A driving method for 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 driving 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: March 2, 2017
    Date of Patent: December 25, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Patent number: 10021376
    Abstract: Second barrier electrodes are arranged under first barrier electrodes so as to fill gaps between the first barrier electrodes, while an insulating layer is located between the first barrier electrodes and the second barrier electrodes. The number of first barrier electrodes and the number of second barrier electrodes in each barrier pitch are 6 or more. The positions of the barriers formed by the first barrier electrodes and the second barrier electrodes are controlled by the reception of a signal representing detected positions of the eyes of a viewer. If pitches of the first barrier electrodes are defined as BE, and the widths of regions in which the first barrier electrodes are overlapped with the second barrier electrodes are defined as BA, a ratio BA/BE of the widths BA to the pitches BE are 0.3 or smaller. This configuration can suppress the occurrence of moire.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: July 10, 2018
    Assignee: Japan Display Inc.
    Inventors: Shinichiro Oka, Kouichi Shirai, Takahiro Ochiai, Amane Higashi
  • Patent number: 10013933
    Abstract: According to an aspect, an image display panel includes: a first pixel including (d?1) sub pixels, which are first to (d?2)-th sub pixels and a (d?1)-th sub pixel, and a second pixel that is adjacent to the first pixels and includes (d?1) sub pixels, which are first to (d?2)-th sub pixels and a d-th sub pixel. A region of the image display panel includes a first pixel display region and a second pixel display region. The first to (d?2)-th sub pixels of the first pixel, one part of the (d?1)-th sub pixel, and one part of the d-th sub pixel are arranged in the first pixel display region. The first to (d?2)-th sub pixels of the second pixel, the other part of the (d?1)-th sub pixel, and the other part of the d-th sub pixel are arranged in the second pixel display region.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 3, 2018
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Amane Higashi
  • Patent number: 9978339
    Abstract: A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: May 22, 2018
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Toshiyuki Nagatsuma, Masaaki Kabe, Amane Higashi, Tae Kurokawa, Fumitaka Gotoh, Akira Sakaigawa
  • Patent number: 9972255
    Abstract: According to an aspect, a display device includes: an image display panel in which pixels are arranged in a two-dimensional matrix, each of the pixels including a first sub-pixel displaying a first color, a second sub-pixel displaying a second color, a third sub-pixel displaying a third color, and a fourth sub-pixel displaying a fourth color; and a signal processing unit that converts input values of input signals into extended values in an extended color space to generate output signals, and outputs the generated output signals to the image display panel. The signal processing unit changes the output signals for the first to fourth sub-pixels based on at least saturation of the input signals.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 15, 2018
    Assignee: Japan Display Inc.
    Inventors: Masaaki Kabe, Toshiyuki Nagatsuma, Amane Higashi, Yoko Fukunaga
  • Patent number: 9830886
    Abstract: According to an aspect, a display device includes an image display panel in which pixels each including first to fourth sub-pixels are arranged in a two-dimensional matrix; and a signal processing unit that converts an input signal into an output signal and outputs the generated output signal to the image display panel. The signal processing unit determines an expansion coefficient, obtains a generated signal of the fourth sub-pixel in each pixel based on input signals of the first to the third sub-pixels in the pixel itself and the expansion coefficient, obtains an output signal for the fourth sub-pixel in each pixel based on a generated signal of the fourth sub-pixel in the pixel itself and a generated signal of the fourth sub-pixel in an adjacent pixel to be output to the fourth sub-pixel.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Amane Higashi, Toshiyuki Nagatsuma, Akira Sakaigawa, Masaaki Kabe
  • Publication number: 20170330530
    Abstract: A display device includes a signal processing unit that receives input signals, and calculates output signals to a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The signal processing unit calculates a frequency of pixels belonging to each of a plurality of partitions using a light quantity of a surface light source. The signal processing unit calculates an index value for each of the partitions by at least multiplying the cumulative frequency being obtained by sequentially adding the frequency of pixels from a partition having the maximum light quantity among the partitions, and the number of partitions representing a position of a partition to which the cumulative frequency belongs counted from the partition having the maximum light quantity. The signal processing unit controls luminance of the surface light source based on a partition in which the index value exceeds a threshold.
    Type: Application
    Filed: July 12, 2017
    Publication date: November 16, 2017
    Inventors: Kojiro Ikeda, Toshiyuki Nagatsuma, Masaaki Kabe, Amane Higashi, Tae Kurokawa, Fumitaka Gotoh, Akira Sakaigawa
  • Publication number: 20170323604
    Abstract: According to an aspect, an image display panel includes: a first pixel including (d?1) sub pixels, which are first to (d?2)-th sub pixels and a (d?1)-th sub pixel, and a second pixel that is adjacent to the first pixels and includes (d?1) sub pixels, which are first to (d?2)-th sub pixels and a d-th sub pixel. A region of the image display panel includes a first pixel display region and a second pixel display region. The first to (d?2)-th sub pixels of the first pixel, one part of the (d?1)-th sub pixel, and one part of the d-th sub pixel are arranged in the first pixel display region. The first to (d?2)-th sub pixels of the second pixel, the other part of the (d?1)-th sub pixel, and the other part of the d-th sub pixel are arranged in the second pixel display region.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 9, 2017
    Inventors: Masaya Tamaki, Amane Higashi
  • Patent number: 9787973
    Abstract: According to one embodiment, a display device includes a switching liquid crystal unit, a display, and a controller. The switching liquid crystal unit includes optical elements switching an aperture pattern including an aperture portion and a light-shielding portion. The display overlaps the switching liquid crystal unit and displays parallax images including right and left eye images. The controller acquires positional information relating to a position of a viewer, and controls a position of the aperture pattern. The controller switches the aperture pattern from a first aperture pattern to a second aperture pattern so that a right eye always views the right eye image and a left eye always views the left eye image, and starts the switching before the viewer moves to an optimal switching position where a luminance viewed from the first aperture pattern is substantially equal to a luminance viewed from the second aperture patterns.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 10, 2017
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Yingbao Yang, Amane Higashi