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).
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Patent number: 8208106Abstract: A substrate for a liquid crystal display including a plurality of gate bus lines and a plurality of data bus lines that cross the gate bus lines, as well as a thin film transistor connected to one of the data bus lines. The display also includes a first electrode with a body portion and a plurality of branches extending from the body portion, wherein at least some of the branches include a first branch portion, which extends from the body portion and defines a first angle, and a second branch portion, which extends from the first branch portion, and which defines a second angle. The first angle is greater than said second angle, and both angles are between 0° and 90° Also included is a second electrode that overlaps at least a portion of the first electrode, and an insulation film between the first and second electrodes.Type: GrantFiled: March 23, 2011Date of Patent: June 26, 2012Assignee: Sharp Kabushiki KaishaInventors: 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
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Publication number: 20120120338Abstract: 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: ApplicationFiled: January 25, 2012Publication date: May 17, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: 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
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Patent number: 8134671Abstract: 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: GrantFiled: March 29, 2011Date of Patent: March 13, 2012Assignee: Sharp Kabushiki KaishaInventors: 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
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Patent number: 8125600Abstract: A liquid crystal display device including first and second substrates which are arranged to be opposite to each other; liquid crystal with negative dielectric anisotropy contained between the first and the second substrates; a polymer which determines directions in which liquid crystal molecules tilt when voltage is applied: and a plurality of picture elements located on the first substrate. At least one of the picture elements on the first substrate includes a switching element; a first sub picture element electrode including a plurality of band-shaped microelectrode parts and a first connecting electrode part electrically connecting the microelectrode parts of the first sub picture element electrode with one another; and a second sub picture element electrode including a plurality of band-shaped microelectrode parts and a second connecting electrode part electrically connecting the microelectrode parts of the second sub picture element electrode with one another.Type: GrantFiled: December 27, 2010Date of Patent: February 28, 2012Assignee: Sharp Kabushiki KaishaInventors: 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
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Publication number: 20110298774Abstract: An LUT fixedly stores correction values to compensate for a pull-in voltage in pixels in a liquid crystal panel. In at least one example embodiment, the display control unit outputs an input video signal Xa, a video signal Xp of a previous frame read from a frame memory, and a pixel polarity indicating a polarity of a pixel applied voltage on the pixel basis, and outputs a correction value read from the LUT to a data line driving circuit as a video signal Xb after correction. The data line driving circuit performs alternate current driving, based on the video signal Xb after correction. The LUT stores different correction values between when a positive polarity voltage is applied and when a negative polarity voltage is applied, for at least a part of combinations of values of the input video signal Xa and the video signal Xp of the previous frame.Type: ApplicationFiled: October 9, 2009Publication date: December 8, 2011Applicant: Sharp Kabushiki KaishaInventors: Takaharu Yamada, Yasunao Iwata, Kuniko Maeno, Yasuhiro Mimura, Tomoo Furukawa, Hideki Morii, Tetsuya Fujikawa
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Patent number: 8035764Abstract: There is provided an MVA type liquid crystal display device having high brightness and excellent display quality.Type: GrantFiled: February 10, 2011Date of Patent: October 11, 2011Assignee: Sharp Kabushiki KaishaInventors: Katsunori Misaki, Tetsuya Fujikawa, Yoshihisa Taguchi, Kenichi Nagaoka, Manabu Sawasaki
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Publication number: 20110234931Abstract: 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: ApplicationFiled: June 3, 2011Publication date: September 29, 2011Applicant: Sharp Kabushiki KaishaInventors: 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
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Publication number: 20110216274Abstract: In a liquid crystal display device, liquid crystal molecules are oriented in a vertical direction to the first substrate and the second substrate by the first molecule orientation film and the second molecule orientation film, respectively, in a non-driving state. A structural pattern is formed so as to extend in a first direction parallel to a surface of the liquid crystal layer and so as to form, in a driving state, an electric field periodically changing in a second direction that is parallel to the liquid crystal layer and vertical to the first direction. The liquid crystal molecules substantially tilt in the first direction in the driving state.Type: ApplicationFiled: March 18, 2011Publication date: September 8, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
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Publication number: 20110194042Abstract: There is provided an MVA type liquid crystal display device having high brightness and excellent display quality.Type: ApplicationFiled: February 10, 2011Publication date: August 11, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Katsunori Misaki, Tetsuya Fujikawa, Yoshihisa Taguchi, Kenichi Nagaoka, Manabu Sawasaki
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Publication number: 20110176098Abstract: 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: ApplicationFiled: March 29, 2011Publication date: July 21, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: 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
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Patent number: 7982829Abstract: 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: GrantFiled: January 21, 2010Date of Patent: July 19, 2011Assignee: Sharp Kabushiki KaishaInventors: 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
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Publication number: 20110170027Abstract: 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: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: 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
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Patent number: 7978290Abstract: A liquid crystal display device including first and second substrates, liquid crystal with negative dielectric anisotropy, a polymer which determines directions in which liquid crystal molecules tilt when voltage is applied, and a plurality of picture elements located on the first substrate. At least one of the picture elements includes a switching element, a first sub picture element electrode with a plurality of band-shaped microelectrode parts and a first connecting electrode part electrically connecting the microelectrode parts with one another, and a second sub picture element electrode including a plurality of band-shaped microelectrode parts and a second connecting electrode part electrically connecting the microelectrode parts of the second sub picture element electrode with one another. A voltage applied to the second sub picture element electrode is different from a voltage applied to the first sub picture element electrode.Type: GrantFiled: December 27, 2010Date of Patent: July 12, 2011Assignee: Sharp Kabushiki KaishaInventors: 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
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Patent number: 7973893Abstract: The present invention is a method of manufacturing a liquid crystal display device, wherein light having an exposure energy is irradiated on the surface of a photo-sensitive resin layer having a predetermined film thickness, and a distribution of thermal deformation characteristics in the thickness direction (or the plane direction) of the photo-sensitive resin layer is formed, then heat treatment is performed to form random undulation (micro-grooves or micro-wrinkles) on the surface of the photo-sensitive resin layer.Type: GrantFiled: November 26, 2008Date of Patent: July 5, 2011Assignee: Sharp Kabushiki KaishaInventors: Naoshige Itami, Tetsuya Fujikawa, Atuyuki Hoshino
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Patent number: 7965363Abstract: 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: GrantFiled: February 19, 2008Date of Patent: June 21, 2011Assignee: Sharp Kabushiki KaishaInventors: 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
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Patent number: 7956969Abstract: 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: GrantFiled: August 13, 2008Date of Patent: June 7, 2011Assignee: Sharp Kabushiki KaishaInventors: Hiroyasu Inoue, Kenichi Nagaoka, Yuji Nakahata, Yoji Taniguchi, Tetsuya Fujikawa, Yohei Nakanishi, Kazutaka Hanaoka, Yuichi Inoue, Masakazu Shibasaki
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Patent number: 7952675Abstract: A liquid crystal display device including 1st and 2nd substrates. A linearly extending scan electrode and a linearly extending signal electrode are formed on the 1st substrate, wherein the scan electrode extends in a direction crossing an extension direction of the signal electrode. A liquid crystal layer is between the 1st and 2nd substrates, and a pixel electrode is formed on the 1st substrate. The pixel electrode is electrically connected to both the scan and signal electrodes. The pixel electrode is divided into at least two regions such that at least two domains of different liquid crystal orientation directions are defined within a single pixel. A 1st and a 2nd of the at least two regions are not aligned in parallel with either the extension direction of the scan electrode or the extension direction of the signal electrode. The 1st and 2nd regions each include a micro-cutout pattern.Type: GrantFiled: November 11, 2008Date of Patent: May 31, 2011Assignee: Sharp Kabushiki KaishaInventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
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Publication number: 20110109860Abstract: 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: ApplicationFiled: January 17, 2011Publication date: May 12, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: 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
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Publication number: 20110109826Abstract: 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: ApplicationFiled: January 17, 2011Publication date: May 12, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: 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
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Publication number: 20110090449Abstract: 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: ApplicationFiled: December 27, 2010Publication date: April 21, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: 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