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).
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Publication number: 20170110072Abstract: 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: ApplicationFiled: December 30, 2016Publication date: April 20, 2017Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
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Patent number: 9626923Abstract: According to an aspect, a display device includes an image display panel, data lines, and scan lines. The image display panel includes arrays of pixels including a plurality of sub-pixels. The arrays of pixels include cyclically arranged columns of first columns each of which includes first sub-pixels, second columns that include second sub-pixels, and third columns. Third sub-pixels and fourth sub-pixels are alternately arranged in the third columns in the direction along the third columns, and are alternately arranged in a direction along the row in the same row of the third columns. Each of the scan lines is coupled to either of the third sub-pixels adjacent thereto or the fourth sub-pixels adjacent thereto, as sub-pixels to be selected thereby.Type: GrantFiled: January 17, 2014Date of Patent: April 18, 2017Assignee: Japan Display Inc.Inventors: Hidemasa Yamaguchi, Masaaki Kabe
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Publication number: 20170047026Abstract: According to one embodiment, a display device includes signal lines, scanning lines, a first pixel, a second pixel and a third pixel. The first pixel including a first subpixel which displays a first color, a second subpixel which displays white, and a third subpixel which displays a second color. The second pixel including a fourth subpixel which displays a third color, a fifth subpixel which displays white, and a sixth subpixel which displays the first color. The third pixel including a seventh subpixel which displays the second color, an eighth subpixel which displays white, and a ninth subpixel which displays the third color.Type: ApplicationFiled: July 28, 2016Publication date: February 16, 2017Applicant: Japan Display Inc.Inventors: Takeyuki TSURUMA, Akira SAKAIGAWA, Masaaki KABE, Kojiro IKEDA
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Patent number: 9569988Abstract: 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: GrantFiled: March 23, 2016Date of Patent: February 14, 2017Assignee: Japan Display Inc.Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
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Patent number: 9508295Abstract: According to one embodiment, a display device includes a first substrate including a first pixel electrode disposed on a first color pixel of red, a second pixel electrode disposed on a second color pixel of green, a third pixel electrode disposed on a third color pixel of blue, and a fourth pixel electrode disposed on a fourth color pixel of white, a second substrate including a common electrode, and a liquid crystal layer held between the first substrate and the second substrate, wherein a top voltage applied to the fourth color pixel to correspond to a maximum gradation value is set to be less than a top voltage applied to each of the first color pixel and the second color pixel to correspond to respective maximum gradation values.Type: GrantFiled: October 14, 2014Date of Patent: November 29, 2016Assignee: Japan Display Inc.Inventors: Tomoko Kozuka, Jin Hirosawa, Yuuki Morita, Hiroyuki Kimura, Kazuya Arima, Masaaki Kabe, Yoshihiro Watanabe
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Patent number: 9501983Abstract: According to an aspect, a color conversion device includes a signal processing unit and a signal output unit. When a color specified in a predetermined color space by color data based on input signals is a color outside a defined color gamut defined in the color space, the signal processing unit generates in-defined-gamut data, and when the color specified in the color space by the color data based on the input signals is a color on a border of or inside the defined color gamut, the signal processing unit does not convert the color data based on the input signals into color data of a color different from that specified by the color data based on the input signals, and generates in-defined-gamut data identical to the color data based on the input signals, and. The signal processing unit generates output signals based on the in-defined-gamut data.Type: GrantFiled: February 4, 2014Date of Patent: November 22, 2016Assignee: Japan Display Inc.Inventors: Hirokazu Tatsuno, Toshiyuki Nagatsuma, Akira Sakaigawa, Masaaki Kabe
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Publication number: 20160334554Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: ApplicationFiled: July 28, 2016Publication date: November 17, 2016Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Koji Noguchi, Kenta Seki
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Publication number: 20160307487Abstract: A display device 10 includes are arranged in a matrix form and to which image information is input, and a signal processing unit 20. The signal processing unit 20 includes a rendering position deciding unit that decides whether or not a sub-pixel rendering process of changing input signal values of sub-pixels of a second pixel among a first pixel, the second pixel, and the third pixel is performed, a pattern information acquiring unit that acquires an arrangement of the sub-pixels in a processing direction of either of a portrait mode and a landscape mode as pattern information indicating a first arrangement pattern or a second arrangement pattern, and a rendering unit that performs a first sub-pixel rendering process or a second sub-pixel rendering process on the input signals of the sub-pixels of the second pixel based on the decision of the rendering position deciding unit and the pattern information.Type: ApplicationFiled: March 30, 2016Publication date: October 20, 2016Applicant: Japan Display Inc.Inventors: Kojiro IKEDA, Masaaki KABE, Akira SAKAIGAWA
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Patent number: 9429689Abstract: An image display apparatus including an image display panel that includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.Type: GrantFiled: September 15, 2015Date of Patent: August 30, 2016Assignee: JAPAN DISPLAY INC.Inventors: Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa, Koji Noguchi, Kenta Seki
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Publication number: 20160203778Abstract: 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: ApplicationFiled: March 23, 2016Publication date: July 14, 2016Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
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Display device, electronic apparatus, driving method of display device, and signal processing method
Patent number: 9390679Abstract: According to an aspect, a display device includes: an image display panel; a signal processing unit; and a signal processing circuit. The signal processing unit calculates an extension coefficient ? for an input signal, calculates an output signal of a first sub-pixel, calculates an output signal of a second sub-pixel, calculates an output signal of a third sub-pixel, calculates an output signal of a fourth sub-pixel, and calculates a control signal. The signal processing circuit performs filtering processing on the control signal by a set first time constant to calculate and output a light-source device control signal, when the control signal is smaller than a set threshold value, and performs filtering processing on the control signal by a set second time constant to calculate and output the light-source device control signal, when the control signal is equal to or larger than the threshold value.Type: GrantFiled: February 20, 2014Date of Patent: July 12, 2016Assignee: Japan Display Inc.Inventors: Tsutomu Harada, Masaaki Kabe, Fumitaka Goto, Toshiyuki Nagatsuma -
Publication number: 20160196787Abstract: According to an aspect, a display device includes an image display panel and a signal processing unit. The signal processing unit derives a generation signal for a fourth sub-pixel in each of pixels based on an input signal for a first sub-pixel, an input signal for a second sub-pixel, an input signal for a third sub-pixel, and an extension coefficient. The signal processing unit derives a correction value based on a hue of an input color corresponding to a color to be displayed based on the input signal for the first sub-pixel, the input signal for the second sub-pixel, and the input signal for the third sub-pixel. The signal processing unit derives the output signal for the fourth sub-pixel in each of the pixels based on the generation signal for the fourth sub-pixel and the correction value and outputs the output signal to the fourth sub-pixel.Type: ApplicationFiled: December 17, 2015Publication date: July 7, 2016Inventors: Masaaki KABE, Fumitaka GOTOH, Kazuhiko SAKO, Toshiyuki NAGATSUMA, Kojiro IKEDA, Tsutomu HARADA
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Patent number: 9378691Abstract: A display device includes: an image display unit that includes a plurality of main pixels in an image display region, the image display unit including sub-pixels; a light source that irradiates the image display region; a light source control unit that controls luminance of the light source; and a color information correction processing unit that corrects first color information that is obtained based on the luminance of the light source and an input video signal to second color information, when color information of at least one of a red pixel, a green pixel, and a blue pixel included in the first color information exceeds a predetermined threshold, the second information is corrected by degenerating color information of the red pixel, the green pixel, and the blue pixel, and by adding color information of the white pixel included in the first color information based on the degenerated color information.Type: GrantFiled: November 9, 2015Date of Patent: June 28, 2016Assignee: Japan Display Inc.Inventors: Fumitaka Gotoh, Tsutomu Harada, Masaaki Kabe, Tae Kurokawa, Kojiro Ikeda, Toshiyuki Nagatsuma, Akira Sakaigawa, Naoyuki Takasaki, Amane Higashi
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Publication number: 20160155777Abstract: A display device includes a display unit in which pixels are arranged in a matrix. The pixels each include a first sub-pixel having the largest area among sub-pixels, a second sub-pixel adjacent to the first sub-pixel and having an area smaller than that of the first sub-pixel, and a third sub-pixel adjacent to the first and second sub-pixels, having an area smaller than that of the first sub-pixel, and arranged in the same column as that of second sub-pixels. First, second, and third pixels are aligned in at least one of a column direction or a row direction and each include the first, second, and third sub-pixels that can display different one of first, second, and third colors. Areas of the first, second, and third colors displayable by the first, second, and third pixels in total are equal to one another.Type: ApplicationFiled: November 25, 2015Publication date: June 2, 2016Applicant: Japan Display Inc.Inventors: Masaaki KABE, Hidemasa YAMAGUCHI, Kojiro IKEDA, Akira SAKAIGAWA
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Publication number: 20160155776Abstract: According to an aspect, a display device includes a display unit in which a plurality of pixels are arranged in a matrix along two directions intersecting with each other. Each of the pixels includes three sub-pixels corresponding to three of four colors including a first color, a second color, a third color, and a fourth color. An area of one sub-pixel among the three sub-pixels is larger than the area of each of the other two sub-pixels. A sub-pixel of the fourth color is one of the other two sub-pixels. Pixels each including the sub-pixel of the fourth color are not adjacent to each other in at least one of the two directions in the display unit.Type: ApplicationFiled: November 24, 2015Publication date: June 2, 2016Applicant: Japan Display Inc.Inventors: Masaaki KABE, Kojiro IKEDA, Tsutomu HARADA, Akira SAKAIGAWA
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Publication number: 20160155371Abstract: 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: ApplicationFiled: November 5, 2015Publication date: June 2, 2016Applicant: Japan Display Inc.Inventors: Kojiro IKEDA, Masaaki KABE, Akira SAKAIGAWA
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Patent number: 9324283Abstract: According to an aspect, a display device includes a first sub-pixel, a second sub-pixel, a third sub-pixel; and a fourth sub-pixel. A signal obtained based on at least an input signal for the first sub-pixel and an extension coefficient is supplied to the first sub-pixel. A signal obtained based on at least an input signal for the second sub-pixel and the extension coefficient is supplied to the second sub-pixel. A signal obtained based on at least an input signal for the third sub-pixel and the extension coefficient is supplied to the third sub-pixel. A signal obtained based on at least the input signal for the first sub-pixel, the input signal for the second sub-pixel, the input signal for the third sub-pixel, and the extension coefficient is supplied to the fourth sub-pixel. The extension coefficient varies based on at least a saturation of the input signals.Type: GrantFiled: November 21, 2013Date of Patent: April 26, 2016Assignee: Japan Display Inc.Inventors: Masaaki Kabe, Toshiyuki Nagatsuma, Amane Higashi, Kojiro Ikeda, Tae Kurokawa, Masashi Mitsui, Hiroki Uchiyama, Hirokazu Tatsuno, Fumitaka Goto, Akira Sakaigawa
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Patent number: 9318033Abstract: 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: GrantFiled: November 19, 2012Date of Patent: April 19, 2016Assignee: Japan Display Inc.Inventors: Yasuyuki Matsui, Akira Sakaigawa, Masaaki Kabe, Kenta Seki
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Patent number: 9311886Abstract: According to an aspect, a display device includes an image display panel on which pixels each including sub-pixels for displaying a first color, a second color, a third color, and a fourth color are arranged, and a signal processing unit that converts an input value of an input signal for an input HSV color space into an output signal for an extended HSV color space. The signal processing unit divides the extended HSV color space into a plurality of spaces, sets limit proportion values different from each other with respect to at least two spaces of the divided spaces respectively, calculates an extension coefficient ? with respect to the input signal by using the input signal and a limit proportion value set with respect to a space according to the input signal, and calculates the output signal based on at least the input signal and the extension coefficient ?.Type: GrantFiled: November 6, 2013Date of Patent: April 12, 2016Assignee: Japan Display Inc.Inventors: Kojiro Ikeda, Fumitaka Goto, Tae Nakahara, Masashi Mitsui, Amane Higashi, Hiroki Uchiyama, Toshiyuki Nagatsuma, Hirokazu Tatsuno, Masaaki Kabe, Akira Sakaigawa
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Publication number: 20160077394Abstract: 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: ApplicationFiled: November 30, 2015Publication date: March 17, 2016Inventors: Koichi Nagasawa, Masaya Tamaki, Shuji Hayashi, Masaaki Kabe, Yoko Fukunaga