Patents by Inventor Tetsuya Satake
Tetsuya Satake 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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Patent number: 11131876Abstract: In a liquid crystal display device, the liquid crystal panel has a display surface of a planar shape on which a plurality of pixels are located. The front protective plate is located so as to face the display surface of the liquid crystal panel. The optical path changing portion is located between an emission surface of the front protective plate and an air layer located closer to the back side than the emission surface is and located closest to the emission surface. The optical path changing portion changes an optical path of light that enters the optical path changing portion so as to expand an emission angle when the incident light is emitted from the emission surface of the front protective plate.Type: GrantFiled: April 2, 2015Date of Patent: September 28, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuriko Takada, Akimasa Yuuki, Takanori Okumura, Tetsuya Satake, Taro Kumagai
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Publication number: 20190121210Abstract: A liquid crystal display device includes pixel structures disposed in a matrix, and includes a display surface flat in a non-curved direction and curved in a curved direction orthogonal to the non-curved direction. The liquid crystal display device includes a liquid crystal layer, a counter substrate, and an array substrate. The counter substrate faces to the liquid crystal layer, includes a black matrix, and is curved along the display surface. The array substrate holds the liquid crystal layer between the array substrate and the counter substrate, and is curved along the display surface and provided with first electrode lines extending in a direction orthogonal to the non-curved direction and second electrode lines intersecting with the first electrode lines. Two or more of the second electrode lines are disposed between pixel structures adjacent to each other in a direction intersecting with the non-curved direction.Type: ApplicationFiled: September 27, 2018Publication date: April 25, 2019Applicant: Mitsubishi Electric CorporationInventors: Tsutomu MATSUURA, Tetsuya SATAKE, Shingo NAGANO
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Patent number: 9900588Abstract: A display panel includes sub-pixel pairs arranged laterally at a predetermined pitch, the sub-pixel pair including two sub pixels displaying images for right and left eyes respectively. A parallax-barrier shutter panel includes sub apertures switching light-transmitting and light-blocking states by driving a liquid crystal layer held between two transparent substrates with transparent electrodes extending vertically. The sub apertures are arranged laterally at a pitch obtained by dividing a reference parallax-barrier pitch by N (N being an even number equal to or greater than four), the reference parallax-barrier pitch being determined on the basis of a predetermined design observation distance and the pitch of the sub-pixel pairs. The parallax-barrier shutter panel includes common driving areas obtained by dividing a display area laterally.Type: GrantFiled: August 28, 2014Date of Patent: February 20, 2018Assignee: Mitsubishi Electric CorporationInventors: Akimasa Yuuki, Tetsuya Satake, Yasunori Niwano, Toshiaki Fujino, Shuichi Kira, Kazunori Okumoto, Shingo Nagano, Yoshimitsu Ishikawa, Kazuhiro Ishiguchi
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Patent number: 9869869Abstract: Each pixel of a multiple view liquid crystal display in a normally black mode includes a counter electrode provided with a slit for generating a fringe electric field. An alignment film subjected to liquid crystal alignment processing in a predetermined direction is disposed on a surface of a TFT substrate provided with the counter electrode. An angle formed by an extending direction of a slit at an end of a pixel region (a first region) and a direction of the liquid crystal alignment processing is greater than an angle formed by the extending direction of the slit in a central part of the pixel region (a second region) and the direction of the liquid crystal alignment processing. The first region has a higher transmittance than that in the second region when low luminance display is carried out.Type: GrantFiled: February 5, 2014Date of Patent: January 16, 2018Assignee: Mitsubishi Electronic CorporationInventors: Shingo Nagano, Yoshimitsu Ishikawa, Tetsuya Satake
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Patent number: 9804438Abstract: Liquid crystal molecules have a pretilt angle to the left-and-right direction in a plane perpendicular to the up-and-down direction, so that an end part of a first side as one side of a left side and a right side of the liquid crystal molecules is set closer to a backlight than an end part of a second side as the other side. Second edge parts of a black matrix adjacent to an upper side and a lower side of an opening have a straight line shape extending by inclination to mutually the same side in the left-and-right direction, so that an end part of the same side as a first side as one side of the left side and the right side of the second edge parts is positioned above the end part of the same side as the second side as the other side.Type: GrantFiled: January 29, 2016Date of Patent: October 31, 2017Assignee: Mitsubishi Electric CorporationInventors: Koji Yonemura, Manabu Iwakawa, Akimasa Yuki, Toshiaki Fujino, Tetsuya Satake, Taroh Yoshino, Kazunori Okumoto
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Patent number: 9759946Abstract: A liquid crystal display device of a horizontal electric field type includes: a first electrode and a second electrode formed on a liquid-crystal-side surface of the first transparent substrate, and two polarization plates respectively adhered such that respective transmission axes thereof are orthogonal to each other, wherein the liquid crystal material is rotated by an electric field generated between the first electrode and the second electrode. With respect to the transmission axis located in an extending direction between the first electrode and the second electrode, an initial orientation direction of the liquid crystal material is within a range between a direction rotated by 0.5-degree in an opposite response direction of the liquid crystal material and a direction orthogonal to an electric field direction generated between the first electrode and the second electrode.Type: GrantFiled: September 30, 2014Date of Patent: September 12, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshiaki Fujino, Yasunori Niwano, Tetsuya Satake, Syuichi Kira, Hiroshi Umeda, Hironori Matsueda
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Patent number: 9729848Abstract: The display device includes a display panel on which sub-pixel pairs are arranged in a lateral direction, and a parallax barrier shutter panel on which sub-openings that can be changed between a light transmittance state and a light-shielding state are arranged in a lateral direction. Arbitrary allocated number of adjacent sub-openings among the plural sub-openings belonging to a reference parallax barrier pitch are put into a light transmittance state, and the remaining sub-openings are put into a light-shielding state, so that a general opening is formed on the parallax barrier shutter panel. A sub-opening pitch of the sub-opening on the boundary part between the adjacent common driving areas is different from the sub-opening pitch of the other sub-openings.Type: GrantFiled: June 10, 2016Date of Patent: August 8, 2017Assignee: Mitsubishi Electric CorporationInventors: Yasunori Niwano, Toshiaki Fujino, Yoshimitsu Ishikawa, Syuichi Kira, Shingo Nagano, Kazuhiro Ishiguchi, Kazunori Okumoto, Akimasa Yuuki, Tetsuya Satake
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Patent number: 9684201Abstract: A first polarizing plate is disposed on a first main surface of a liquid crystal display panel. A second polarizing plate is disposed on a second main surface of the liquid crystal panel. The first polarizing plate includes a first polarizer and a first phase difference film laminated on a main surface on the liquid crystal display panel side in the first polarizer. The second polarizing plate includes a second polarizer and a transparent film laminated on a main surface on the side opposite to the liquid crystal display panel in the second polarizer.Type: GrantFiled: April 4, 2014Date of Patent: June 20, 2017Assignee: Mitsubishi Electric CorporationInventors: Toshiaki Fujino, Yasunori Niwano, Tetsuya Satake, Takanori Okumura, Yuji Ogawa
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Publication number: 20170052408Abstract: In a liquid crystal display device, the liquid crystal panel has a display surface of a planar shape on which a plurality of pixels are located. The front protective plate is located so as to face the display surface of the liquid crystal panel. The optical path changing portion is located between an emission surface of the front protective plate and an air layer located closer to the back side than the emission surface is and located closest to the emission surface. The optical path changing portion changes an optical path of light that enters the optical path changing portion so as to expand an emission angle when the incident light is emitted from the emission surface of the front protective plate.Type: ApplicationFiled: April 2, 2015Publication date: February 23, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuriko TAKADA, Akimasa YUUKI, Takanori OKUMURA, Tetsuya SATAKE, Taro KUMAGAI
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Publication number: 20160286193Abstract: The display device includes a display panel on which sub-pixel pairs are arranged in a lateral direction, and a parallax barrier shutter panel on which sub-openings that can be changed between a light transmittance state and a light-shielding state are arranged in a lateral direction. Arbitrary allocated number of adjacent sub-openings among the plural sub-openings belonging to a reference parallax barrier pitch are put into a light transmittance state, and the remaining sub-openings are put into a light-shielding state, so that a general opening is formed on the parallax barrier shutter panel. A sub-opening pitch of the sub-opening on the boundary part between the adjacent common driving areas is different from the sub-opening pitch of the other sub-openings.Type: ApplicationFiled: June 10, 2016Publication date: September 29, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori NIWANO, Toshiaki FUJINO, Yoshimitsu ISHIKAWA, Syuichi KIRA, Shingo NAGANO, Kazuhiro ISHIGUCHI, Kazunori OKUMOTO, Akimasa YUUKI, Tetsuya SATAKE
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Publication number: 20160223875Abstract: Liquid crystal molecules have a pretilt angle to the left-and-right direction in a plane perpendicular to the up-and-down direction, so that an end part of a first side as one side of a left side and a right side of the liquid crystal molecules is set closer to a backlight than an end part of a second side as the other side. Second edge parts of a black matrix adjacent to an upper side and a lower side of an opening have a straight line shape extending by inclination to mutually the same side in the left-and-right direction, so that an end part of the same side as a first side as one side of the left side and the right side of the second edge parts is positioned above the end part of the same side as the second side as the other side.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: Mitsubishi Electric CorporationInventors: Koji YONEMURA, Manabu IWAKAWA, Akimasa YUKI, Toshiaki FUJINO, Tetsuya SATAKE, Taroh YOSHINO, Kazunori OKUMOTO
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Patent number: 9402071Abstract: The display device includes a display panel on which sub-pixel pairs are arranged in a lateral direction, and a parallax barrier shutter panel on which sub-openings that can be changed between a light transmittance state and a light-shielding state are arranged in a lateral direction. Arbitrary allocated number of adjacent sub-openings among the plural sub-openings belonging to a reference parallax barrier pitch are put into a light transmittance state, and the remaining sub-openings are put into a light-shielding state, so that a general opening is formed on the parallax barrier shutter panel. A sub-opening pitch of the sub-opening on the boundary part between the adjacent common driving areas is different from the sub-opening pitch of the other sub-openings.Type: GrantFiled: September 23, 2013Date of Patent: July 26, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori Niwano, Toshiaki Fujino, Yoshimitsu Ishikawa, Syuichi Kira, Shingo Nagano, Kazuhiro Ishiguchi, Kazunori Okumoto, Akimasa Yuuki, Tetsuya Satake
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Publication number: 20160198149Abstract: A display panel includes sub-pixel pairs arranged laterally at a predetermined pitch, the sub-pixel pair including two sub pixels displaying images for right and left eyes respectively. A parallax-barrier shutter panel includes sub apertures switching light-transmitting and light-blocking states by driving a liquid crystal layer held between two transparent substrates with transparent electrodes extending vertically. The sub apertures are arranged laterally at a pitch obtained by dividing a reference parallax-barrier pitch by N (N being an even number equal to or greater than four), the reference parallax-barrier pitch being determined on the basis of a predetermined design observation distance and the pitch of the sub-pixel pairs. The parallax-barrier shutter panel includes common driving areas obtained by dividing a display area laterally.Type: ApplicationFiled: August 28, 2014Publication date: July 7, 2016Applicant: Mitsubishi Electric CorporationInventors: Akimasa YUUKI, Tetsuya SATAKE, Yasunori NIWANO, Toshiaki FUJINO, Shuichi KIRA, Kazunori OKUMOTO, Shingo NAGANO, Yoshimitsu ISHIKAWA, Kazuhiro ISHIGUCHI
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Publication number: 20150098034Abstract: A liquid crystal display device of a horizontal electric field type includes: a first electrode and a second electrode formed on a liquid-crystal-side surface of the first transparent substrate, and two polarization plates respectively adhered such that respective transmission axes thereof are orthogonal to each other, wherein the liquid crystal material is rotated by an electric field generated between the first electrode and the second electrode. With respect to the transmission axis located in an extending direction between the first electrode and the second electrode, an initial orientation direction of the liquid crystal material is within a range between a direction rotated by 0.5-degree in an opposite response direction of the liquid crystal material and a direction orthogonal to an electric field direction generated between the first electrode and the second electrode.Type: ApplicationFiled: September 30, 2014Publication date: April 9, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshiaki FUJINO, Yasunori NIWANO, Tetsuya SATAKE, Syuichi KIRA, Hiroshi UMEDA, Hironori MATSUEDA
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Publication number: 20140313456Abstract: A first polarizing plate is disposed on a first main surface of a liquid crystal display panel. A second polarizing plate is disposed on a second main surface of the liquid crystal panel. The first polarizing plate includes a first polarizer and a first phase difference film laminated on a main surface on the liquid crystal display panel side in the first polarizer. The second polarizing plate includes a second polarizer and a transparent film laminated on a main surface on the side opposite to the liquid crystal display panel in the second polarizer.Type: ApplicationFiled: April 4, 2014Publication date: October 23, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshiaki FUJINO, Yasunori NIWANO, Tetsuya SATAKE, Takanori OKUMURA, Yuji OGAWA
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Publication number: 20140218670Abstract: Each pixel of a multiple view liquid crystal display in a normally black mode includes a counter electrode provided with a slit for generating a fringe electric field. An alignment film subjected to liquid crystal alignment processing in a predetermined direction is disposed on a surface of a TFT substrate provided with the counter electrode. An angle formed by an extending direction of a slit at an end of a pixel region (a first region) and a direction of the liquid crystal alignment processing is greater than an angle formed by the extending direction of the slit in a central part of the pixel region (a second region) and the direction of the liquid crystal alignment processing. The first region has a higher transmittance than that in the second region when low luminance display is carried out.Type: ApplicationFiled: February 5, 2014Publication date: August 7, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shingo NAGANO, Yoshimitsu ISHIKAWA, Tetsuya SATAKE
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Publication number: 20140085439Abstract: The display device includes a display panel on which sub-pixel pairs are arranged in a lateral direction, and a parallax barrier shutter panel on which sub-openings that can be changed between a light transmittance state and a light-shielding state are arranged in a lateral direction. Arbitrary allocated number of adjacent sub-openings among the plural sub-openings belonging to a reference parallax barrier pitch are put into a light transmittance state, and the remaining sub-openings are put into a light-shielding state, so that a general opening is formed on the parallax barrier shutter panel. A sub-opening pitch of the sub-opening on the boundary part between the adjacent common driving areas is different from the sub-opening pitch of the other sub-openings.Type: ApplicationFiled: September 23, 2013Publication date: March 27, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasunori NIWANO, Toshiaki FUJINO, Yoshimitsu ISHIKAWA, Syuichi KIRA, Shingo NAGANO, Kazuhiro ISHIGUCHI, Kazunori OKUMOTO, Akimasa YUUKI, Tetsuya SATAKE
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Patent number: 8040476Abstract: The display device includes a pair of insulating substrates arranged so as to be opposed, a bonding layer, and a strain suppressing plate. The bonding layer is provided on the outer surface side of one insulating substrate. The strain suppressing plate has rigidity higher than that of the insulating substrate to suppress the strain caused by curving the insulating substrate. The strain suppressing plate is fixed to the insulating substrate by the bonding layer.Type: GrantFiled: May 26, 2009Date of Patent: October 18, 2011Assignee: Mitsubishi Electric CorporationInventors: Takumi Nakahata, Takanori Okumura, Yusuke Yamagata, Naoki Nakagawa, Masafumi Agari, Tetsuya Satake, Toru Kokogawa, Kenji Arita
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Patent number: D797022Type: GrantFiled: February 20, 2015Date of Patent: September 12, 2017Assignee: Mitsubishi Electric CorporationInventors: Taro Kumagai, Tetsuya Satake, Takashi Hirano, Takanori Okumura
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Patent number: D834477Type: GrantFiled: December 20, 2016Date of Patent: November 27, 2018Assignee: Mitsubishi Electric CorporationInventors: Taro Kumagai, Tetsuya Satake, Takashi Hirano, Takanori Okumura