Patents by Inventor Manabu Sawasaki

Manabu Sawasaki 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: 20190219861
    Abstract: A display device includes a display panel configured to display an image, a phase difference function-provided polarizing plate attached to the display panel, a protection panel disposed to interpose the phase difference function-provided polarizing plate between the display panel and the protection panel, a structural element projecting from a plate surface of the protection pane that is opposite the phase difference function-provided polarizing plate, and a light transmissive fixation layer interposed between and bonding the phase difference function-provided polarizing plate and the protection panel. The structural element and the phase difference function-provided polarizing plate overlap each other by an overlap distance of 1.5 mm or less.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 18, 2019
    Inventor: MANABU SAWASAKI
  • Patent number: 9069221
    Abstract: A liquid crystal display device including a first substrate, with a plurality of bus lines formed thereon such that they intersect with each other, and a second substrate facing the first substrate. The device also includes a plurality of pixel regions defined by the bus lines; a thin film transistor formed in each of the pixel regions; a color filter layer formed in each of the pixel regions; and a pixel electrode formed in each of the pixel regions. A liquid crystal layer is provided between the first substrate and the second substrate. The liquid crystal layer is located next to a polymeric structure formed by irradiating a mixture of liquid crystal materials and ultraviolet-curing monomers with ultraviolet light, and a black display is achieved when no voltage or a subthreshold voltage is applied.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: June 30, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
  • Publication number: 20140347614
    Abstract: This liquid crystal display device (100) includes: a first substrate (10) including a pixel electrode (11); a second substrate (20) including a counter electrode (21); and a vertical alignment liquid crystal layer (30). At least one liquid crystal domain with axisymmetric alignment is produced when a voltage is applied between the pixel electrode and the counter electrode in each pixel. The second substrate further includes an alignment controlling projection which induces liquid crystal molecules (31) in the liquid crystal domain to get aligned axisymmetrically and a plurality of columnar spacers (24), which includes a first columnar spacer (24m) and a second columnar spacer (24s) which is lower than the first columnar spacer. The pixel electrode has a length of 35 ?m or less as measured along its shorter sides. In at least some of the pixels, the second columnar spacer functions as the alignment controlling projection.
    Type: Application
    Filed: January 11, 2013
    Publication date: November 27, 2014
    Inventors: Katsushige Asada, Manabu Sawasaki, Junichi Morinaga, Masayuki Yamanaka
  • Publication number: 20130293797
    Abstract: It is an object of the invention to provide a substrate for a liquid crystal display, a liquid crystal display having the same, and a method of manufacturing the same which make it possible to provide a display having high luminance and preferable display characteristics to be used in display sections of information apparatuses and the like. Each pixel is defined by gate bus lines extending in the horizontal direction and drain bus lines extending in the vertical direction. TFTs are formed in the vicinity of intersections between the bus lines, and resin overlap sections for shielding the TFTs from light are formed above the same. No black matrix is formed on a common electrode substrate which is provided in a face-to-face relationship with a TFT substrate, and the bus lines and the resin overlap sections formed on the TFT substrate function as a black matrix.
    Type: Application
    Filed: July 1, 2013
    Publication date: November 7, 2013
    Inventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
  • Patent number: 8553188
    Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels. The device also includes a structure which is formed in an outer area located next to the display area, but that does not overlap the display area, and is substantially the same as at least one of the plurality of domain regulating structures.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: October 8, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 8493534
    Abstract: A liquid crystal display device including first and second substrates and a liquid crystal layer therebetween. The device also includes a plurality of gate bus lines, and a plurality of drain bus lines that intersect the gate bus lines, as well as a plurality of pixel regions defined by the gate and drain bus lines. Additionally, the device includes a thin film transistor and a resin color filter layer formed in each of the pixel regions. There is a pixel electrode formed in each of the pixel regions on the resin color filter layer that includes a slit extending in parallel with an edge of the pixel region and a plurality of finer slits diagonally extending from the slit. Finally, the device includes a common electrode formed on the second substrate, and a vertical alignment film applied to each of surfaces of the substrates.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 23, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
  • Publication number: 20120249910
    Abstract: It is an object of the invention to provide a substrate for a liquid crystal display, a liquid crystal display having the same, and a method of manufacturing the same which make it possible to provide a display having high luminance and preferable display characteristics to be used in display sections of information apparatuses and the like. Each pixel is defined by gate bus lines extending in the horizontal direction and drain bus lines extending in the vertical direction. TFTs are formed in the vicinity of intersections between the bus lines, and resin overlap sections for shielding the TFTs from light are formed above the same. No black matrix is formed on a common electrode substrate which is provided in a face-to-face relationship with a TFT substrate, and the bus lines and the resin overlap sections formed on the TFT substrate function as a black matrix.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 4, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
  • Patent number: 8228473
    Abstract: A liquid crystal display device including first and second substrates, a liquid crystal layer, a plurality of gate bus lines and a plurality of drain bus lines. A plurality of pixel regions are defined by the gate bus lines and the drain bus lines. Pixel electrodes are divided into at least four regions such that at least four domains of different liquid crystal orientation directions are defined within the pixel regions. The first and second regions each include a micro-cutout pattern including a plurality of cutouts extending in a slanted direction with respect to an edge of the first or second region, respectively, and the cutouts of the first region and the cutouts of the second region are generally parallel to each other both within each of the regions as well as across the first and second regions.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: July 24, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Sawasaki, Yuichi Inoue, Masakazu Shibasaki, Naoto Kondo, Tetsuya Fujikawa, Takashi Takagi, Tomonori Tanose, Tomoshige Oda, Akira Komorita, Katsunori Misaki, Shiro Hirota
  • Publication number: 20120120338
    Abstract: A liquid crystal display device comprising a liquid crystal layer including liquid crystal molecules provided between a first substrate and a second substrate; pixels forming a display area; electrodes for applying a voltage across the liquid crystal layer within each of the pixels; a plurality of domain regulating structures for dividing orientations of the liquid crystal molecules and forming multiple domains within each of the pixels, when a predetermined voltage is applied across the liquid crystal layer within each of the pixels; and a structure which is formed in an outer area located next to the display area and is substantially the same as at least one of the plurality of domain regulating structures.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 8134671
    Abstract: A liquid crystal display device including a pair of substrates sandwiching liquid crystal molecules, a plurality of gate bus lines, and a plurality of data bus lines, with each of the data bus lines extending to intersect the gate bus lines and bending in a zigzag manner. A plurality of pixels are formed in areas enclosed by the data and gate bus lines, with a plurality of pixel electrodes, each covering a substantial area of one of the pixels. A plurality of domain regulating structures for regulating orientation directions of the liquid crystal molecules and for forming multiple domains are formed in each of the pixels. At least one of the domain regulating structures bends along a first side edge of the pixel electrode and domains are divided in accordance with the bending of the domain regulating structure.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 8059252
    Abstract: The invention relates to a liquid crystal display device that is used in display portions of electronics devices and a manufacturing method thereof, and an object is to provide a high quality liquid crystal display device where light is inhibited from leaking and a manufacturing method thereof. The projected structure formed of the first through the fourth columnar spacer receiving patterns, the insulating film and the final protective film is formed on the TFT substrate. The projected structure is buried in the columnar spacer disposed on the opposite substrate. Thereby, even when the liquid crystal display panel is surface pressed, both substrates are hardly displaced.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: November 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunori Misaki, Manabu Sawasaki, Yoshio Kurosawa
  • Patent number: 8035764
    Abstract: There is provided an MVA type liquid crystal display device having high brightness and excellent display quality.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: October 11, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunori Misaki, Tetsuya Fujikawa, Yoshihisa Taguchi, Kenichi Nagaoka, Manabu Sawasaki
  • Publication number: 20110194042
    Abstract: There is provided an MVA type liquid crystal display device having high brightness and excellent display quality.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Katsunori Misaki, Tetsuya Fujikawa, Yoshihisa Taguchi, Kenichi Nagaoka, Manabu Sawasaki
  • Publication number: 20110176098
    Abstract: A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
    Type: Application
    Filed: March 29, 2011
    Publication date: July 21, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 7978300
    Abstract: In the liquid crystal display device and the method of manufacturing the same, the pixel electrodes 32 and the projection pattern 35 are formed on the TFT substrate 30 side, and surfaces of the pixel electrodes 32 and the projection pattern 35 are covered with the vertical alignment film 36. Also, the opposing electrode 44 and the projection pattern 45 are formed on the CF substrate 40 side, and surfaces of the opposing electrode 44 and the projection pattern 45 are covered with the vertical alignment film 46. Then, the TFT substrate 30 and the CF substrate 40 are arranged such that top end portions of the projection pattern 45 on the CF substrate 40 are brought into contact with the TFT substrate 30. Then, the liquid crystal 49 having the negative dielectric anisotropy is sealed between them. Accordingly, the step of scattering the spacers can be omitted, change in the cell thickness can be prevented, and the good display quality can be achieved.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: July 12, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Ikeda, Manabu Sawasaki, Yoji Taniguchi, Hiroyasu Inoue, Tomonori Tanose, Yoshinori Tanaka
  • Patent number: 7965363
    Abstract: A liquid crystal display device including a common electrode on a first substrate, a pixel electrode on a second substrate, and a liquid crystal layer between the first and second substrates. The device also include first and second alignment control structures formed, respectively, on the first and second substrates, for regulating azimuths of orientations of the liquid crystal when a voltage is applied thereto. The first and second alignment control structures each include a first line portion (extending in a first direction) and a second line portion (extending in a second direction, which is different from the first direction). The pixel electrode includes an edge extending in a direction different from both the first and second directions.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 21, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 7924372
    Abstract: To provide a liquid crystal display device having excellent display quality and a substrate to be used for such liquid crystal display device. A liquid crystal display device is provided with a pair of substrates; a liquid crystal sealed between the substrates, CF resin layers formed in a display area on the substrate; and a structure for sustaining a cell gap between the substrates in the display area. The structure is provided with a resin spacer layer occupying 90% or more of the volume of an organic member constituting the structure.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: April 12, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Sawasaki, Takashi Takagi
  • Patent number: 7911549
    Abstract: There is provided an MVA type liquid crystal display device having high brightness and excellent display quality.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: March 22, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunori Misaki, Tetsuya Fujikawa, Yoshihisa Taguchi, Kenichi Nagaoka, Manabu Sawasaki
  • Patent number: 7903211
    Abstract: A liquid crystal display including a first substrate including a gate bus line, a data bus line intersecting the gate bus line, a thin film transistor formed near an intersection between the gate bus line and the data bus line, and a pixel electrode including a transmission electrode electrically connected to the thin film transistor and a reflection electrode electrically connected to the transmission electrode, a second substrate opposed to the first substrate and including an opposed electrode opposed to the pixel electrode, and a liquid crystal layer sealed between the first substrate and the second substrate. The transmission electrode includes a plurality of electrode units interconnected to each other by an interconnection pattern, and the reflection electrode is formed over the electrode unit with an insulation layer with convexities formed in the surface of the insulation layer.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: March 8, 2011
    Assignees: Fujitsu Limited, AU Optronics Corporation
    Inventors: Kunihiro Tashiro, Yasutoshi Tasaka, Katsufumi Ohmuro, Hidefumi Yoshida, Yoshinori Tanaka, Norio Sugiura, Seiji Doi, Manabu Sawasaki, Tomonori Tanose, Isao Tsushima, Tetsuya Fujikawa, Tomoshige Oda
  • Patent number: 7864279
    Abstract: The invention relates to a vertically aligned liquid crystal display and a method of manufacturing the same and provides a liquid crystal display in which singular points can be sufficiently controlled to achieve high display quality and a method of manufacturing the same. A surface of the common electrode facing at least one-fourth of a non-electrode part at the outer periphery of the electrode unit is formed with a height of 0.2 ?m or more or a height in the range from 0.4 to 1.5 ?m if possible above a surface of the common electrode facing a part of the electrode unit substantially in the middle thereof.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: January 4, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Manabu Sawasaki, Takashi Takagi