Patents by Inventor Tetsuya Fujikawa

Tetsuya Fujikawa 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: 20110090448
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Application
    Filed: December 27, 2010
    Publication date: April 21, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Patent number: 7920239
    Abstract: A liquid crystal display device including first and second substrates, liquid crystal between the substrates, a plurality of gate bus lines extending in a first direction, a plurality of drain bus lines extending in a second direction, and a picture element electrode. The picture element electrode includes a body portion and a plurality of branches, separated by slits, extending therefrom. The body portion includes a first body portion extending generally in the first direction and a second body portion extending generally in the second direction, and further wherein the first body portion includes at least one wide portion and at least one narrow portion. The liquid crystal display device also includes a capacitor electrode and a capacitor upper electrode that overlap the wide portion. The capacitor upper electrode connects to the picture element electrode through a contact hole formed at the wide portion.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 5, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Publication number: 20110075087
    Abstract: Each of picture elements (14) has a plurality of alignment regions (R1, R2, R3, and R4), in each of which liquid crystal molecules contained in a liquid crystal layer are aligned in a direction that is different from those in the others of the plurality of alignment regions. Each of a plurality of scanning signal lines (32) and a border region (R11 and R12) between corresponding adjacent ones of the plurality of alignment regions (R1, R2, R3, and R4) at least partially overlap each other when viewed from above.
    Type: Application
    Filed: March 27, 2009
    Publication date: March 31, 2011
    Inventors: Junichi Morinaga, Katsushige Asada, Masahiro Yoshida, Tetsuya Fujikawa, Katsuhiro Mikumo, Kuniko Maeno, Ryohki Itoh, Satoshi Horiuchi, Tatsuji Saitoh, Isao Ogasawara, Kazunori Tanimoto, Katsuhiro Okada, Toshiaki Fujihara, Masakatsu Tominaga
  • 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: 7911573
    Abstract: A liquid crystal display device including first and second substrates, a liquid crystal layer, a plurality of gate bus lines extending in a first direction, a plurality of drain bus lines extending in a second direction, at least one auxiliary capacitance bus line extending in the first direction, a first sub picture element electrode, a second sub picture element electrode, and first and second auxiliary capacitance lower electrodes extending from the auxiliary capacitance bus line in the second direction, such that a combination of the first and second auxiliary capacitance lower electrodes and a portion of the auxiliary capacitance bus line within a picture element region form a generally cross-shaped structure. Also, a portion of the first sub picture element electrode overlaps a portion of the first auxiliary capacitance lower electrode, a portion of the second auxiliary capacitance lower electrode, and a portion of the auxiliary capacitance bus line.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: March 22, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Publication number: 20110058134
    Abstract: When radiating light onto a liquid crystal composition containing a photosensitive material, the alignment of liquid crystal molecules is adjusted by applying a voltage to the liquid crystal composition layer, to achieve substantially orderly alignment of the liquid crystal molecules, or the alignment of the liquid crystal molecules is made uniform by adjusting the structure of the liquid crystal display device, or any display defect is driven out of the display area. When radiating light to the liquid crystal composition containing the photosensitive material, the alignment of the liquid crystal molecules can be adjusted so as to achieve substantially orderly alignment of the liquid crystal molecules, and the liquid crystal display device can thus be driven stably.
    Type: Application
    Filed: November 15, 2010
    Publication date: March 10, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyasu Inoue, Kenichi Nagaoka, Yuji Nakahata, Yoji Taniguchi, Tetsuya Fujikawa, Yohei Nakanishi, Kazutaka Hanaoka, Yuichi Inoue, Masakazu Shibasaki
  • 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: 7868981
    Abstract: A liquid crystal display device including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, as well as a source electrode, a Cs intermediate electrode, and a pixel electrode formed on one of the pair of substrates. The liquid crystal display device also includes vertical alignment films formed on the pair of substrates and polymer layers formed on the vertical alignment films, wherein a contact hole, which connects the source electrode and the pixel electrode, and another contact hole, which connects the pixel electrode and the Cs intermediate electrode, are both formed at a liquid crystal domain boundary.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: January 11, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyasu Inoue, Kenichi Nagaoka, Yuji Nakahata, Yoji Taniguchi, Tetsuya Fujikawa, Yohei Nakanishi, Kazutaka Hanaoka, Yuichi Inoue, Masakazu Shibasaki
  • Publication number: 20110001913
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Application
    Filed: May 21, 2010
    Publication date: January 6, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Publication number: 20100328558
    Abstract: At least either a first substrate or a second substrate has regions corresponding to subpixels (15a, 15b, 15c) and provided with ribs (100a) for controlling how a liquid crystal material is aligned. Scanning signal lines (32) and picture element electrodes (60) are overlapped with each other via an insulating material as seen in plan view. The ribs (100a) and the scanning signal lines (32) are at least partially overlapped with each other as seen in plan view.
    Type: Application
    Filed: December 3, 2008
    Publication date: December 30, 2010
    Inventors: Katsushige Asada, Masahiro Yoshida, Masakatsu Tominaga, Tetsuya Fujikawa, Junichi Morinaga, Toshiaki Fujihara
  • Publication number: 20100309417
    Abstract: First and second sub-picture element electrodes, a buffer capacitance, and a first to third TFTs are formed in each picture element; the first and second TFTs are driven by a signal supplied to an nth gate bus line; the third TFT is driven by a signal supplied to an (n+1)th gate bus line; the first sub-picture element electrode is connected to the first and third TFTs; the second sub-picture element electrode is connected to the second TFT; a drain electrode of the third TFT is connected to an upper electrode of the buffer capacitance; and a lower electrode of this buffer capacitance is connected to the (n+1)th gate bus line.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 9, 2010
    Inventors: Shuntaro KOSUGI, Tetsuya Fujikawa, Tsuyoshi Kamada
  • Patent number: 7838882
    Abstract: A TFT substrate comprises a substrate, a gate electrode and a lower electrode of a capacitor formed thereon, a first insulating layer formed thereon, a channel layer above the gate electrode and a lower layer of an upper electrode of the capacitor, a channel protection layer formed on an intermediate part of said channel layer and a capacitor protection layer formed on a connection region of the lower layer, source/drain electrodes formed on said channel layer and an upper layer of the upper electrode of the capacitor formed on the lower layer and covering the capacitor protection layer, a second insulating layer covering them, a first connection hole exposing the source electrode and a second connection hole exposing a connection region of said upper layer, which are penetrating the second insulating layer, and a pixel electrode formed thereon.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: November 23, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Fujikawa, Seiji Doi
  • Patent number: 7821603
    Abstract: A vertical alignment type liquid crystal display device including a plurality of pixels, which further includes a first substrate and a second substrate and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate include alignment control structures which extend linearly, and when viewed in a direction vertical to the first substrate, in a pixel, the alignment control structure of the first substrate and the alignment control structures of the second substrate are arranged alternately. The alignment control structure of the first substrate includes first and second linear portions, and distances between the first and second linear portions and an adjacent alignment control structure of the second substrate are different from each other. Additionally, each of the first and second linear portions and the alignment control structures of the second substrate are arranged in parallel.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 26, 2010
    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
  • Publication number: 20100265448
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Application
    Filed: May 21, 2010
    Publication date: October 21, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Publication number: 20100231838
    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: May 27, 2010
    Publication date: September 16, 2010
    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: 7764345
    Abstract: First and second sub-picture element electrodes, a buffer capacitance, and a first to third TFTs are formed in each picture element; the first and second TFTs are driven by a signal supplied to an nth gate bus line; the third TFT is driven by a signal supplied to an (n+1)th gate bus line; the first sub-picture element electrode is connected to the first and third TFTs; the second sub-picture element electrode is connected to the second TFT; a drain electrode of the third TFT is connected to an upper electrode of the buffer capacitance; and a lower electrode of this buffer capacitance is connected to the (n+1)th gate bus line.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 27, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shuntaro Kosugi, Tetsuya Fujikawa, Tsuyoshi Kamada
  • Patent number: 7760305
    Abstract: A liquid crystal display device that includes a plurality of pixels, a first substrate and a second substrate, as well as a liquid crystal layer provided between the first and second substrates. A first alignment structure and a second alignment structure are formed on the first substrate, and a third alignment structure and a fourth alignment structure are formed on the second substrate, for controlling an alignment of the liquid crystal. At least one auxiliary alignment structure is also formed on the first substrate for controlling an alignment of liquid crystals. The first and second alignment structures extend linearly in different directions from each other in a pixel, and the third and fourth alignment structures extend parallel to the first and second alignment structures, respectively. Also, the auxiliary alignment structure extends substantially along an edge of the pixel.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: July 20, 2010
    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
  • Publication number: 20100165259
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 1, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Publication number: 20100118233
    Abstract: The technology presented herein has a feature of providing a liquid crystal display device of an excellent viewing angle characteristic and high brightness, including: liquid crystals containing polymerizable monomers between a first substrate with a pixel electrode having micro slits and a second substrate facing the first substrate; wherein the monomers are polymerizable with voltage applied to the liquid crystals; and an alignment orientation of the liquid crystals is controllable to a direction of extending the micro slit, wherein the pixel electrode includes: a direct coupling part electrically connected to a switching element; a capacitive coupling part electrically insulated from the switching element, and a space between the direct and capacitive coupling parts, wherein directions in which the micro slits are extended along the direct and capacitive coupling parts are orthogonal to each other.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazutaka HANAOKA, Katsufumi Ohmuro, Kunihiro Tashiro, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Yasuhiro Ohno, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa, Takahiro Sasaki
  • Patent number: 7710523
    Abstract: A liquid crystal display device according to the present invention is constituted of a TFT substrate and an opposing substrate which are arranged so as to be opposite to each other with a liquid crystal layer interposed therebetween. In addition, in the liquid crystal layer, formed is a polymer into which a polymer component added to liquid crystal is polymerized, and which determines directions in which liquid crystal molecules tilt when voltage is applied. In the TFT substrate, formed are a sub picture element electrode directly connected to a TFT and a sub picture element electrode connected to the TFT through capacitive coupling. In each of these sub picture element electrodes, formed are slits extending in directions respectively at angles of 45 degrees, 135 degrees, 225 degrees and 315 degrees to the X axis.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: May 4, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa