Patents by Inventor Shingo Kataoka
Shingo Kataoka 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: 20070206129Abstract: A liquid crystal display device, in which a liquid crystal layer is supported by a liquid crystal substrate, in which an orientation-controlling layer is formed on a surface of the liquid crystal substrate to regulate an orientation of liquid crystal molecules in the liquid crystal layer in the predetermined direction, and the orientation-controlling layer is formed by an incorporated additive added to the liquid crystal.Type: ApplicationFiled: May 2, 2007Publication date: September 6, 2007Inventors: Kimiaki Nakamura, Hideo Chida, Shingo Kataoka, Hidefumi Yoshida, Yoshio Koike
-
Patent number: 7253862Abstract: A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.Type: GrantFiled: January 14, 2002Date of Patent: August 7, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Shingo Kataoka, Tsuyoshi Kamada, Kazuya Ueda, Takahiro Sasaki
-
Patent number: 7248318Abstract: A liquid crystal display device, in which a liquid crystal layer is supported by a liquid crystal substrate, in which an orientation-controlling layer is formed on a surface of the liquid crystal substrate to regulate an orientation of liquid crystal molecules in the liquid crystal layer in the predetermined direction, and the orientation-controlling layer is formed by an incorporated additive added to the liquid crystal.Type: GrantFiled: May 30, 2003Date of Patent: July 24, 2007Assignee: Sharp Kabushiki KaishaInventors: Kimiaki Nakamura, Hideo Chida, Shingo Kataoka, Hidefumi Yoshida, Yoshio Koike
-
Patent number: 7239366Abstract: A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.Type: GrantFiled: September 18, 2003Date of Patent: July 3, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Shingo Kataoka, Tsuyoshi Kamada, Kazuya Ueda
-
Publication number: 20070132929Abstract: 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: October 2, 2006Publication date: June 14, 2007Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida
-
Patent number: 7230665Abstract: A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.Type: GrantFiled: September 18, 2003Date of Patent: June 12, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Shingo Kataoka, Tsuyoshi Kamada, Kazuya Ueda, Takahiro Sasaki
-
Patent number: 7227606Abstract: A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic is provided. The 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 is 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: GrantFiled: November 21, 2003Date of Patent: June 5, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, 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: 20070120092Abstract: A vertically aligned liquid crystal display device such as of the MVA mode and a method of manufacturing the same featuring favorable viewing angle characteristics. The liquid crystal display device includes an electrode formed on at least one substrate of a pair of substrates to apply a voltage to the liquid crystal molecules, a first alignment control layer for vertically aligning the liquid crystal molecules and a liquid crystal layer that are held between the pair of substrates, and a second alignment control layer of an ultraviolet ray-cured product formed after the liquid crystal layer is held between the pair of substrates, wherein the second alignment control layer is so formed that there exist two or more regions of different threshold voltages in each display pixel, at least one region has a threshold voltage higher than a threshold voltage produced by the first alignment control layer, and a pre-tilted angle ?p of not smaller than 86° but smaller than 90° is possessed by all regions.Type: ApplicationFiled: May 16, 2006Publication date: May 31, 2007Applicant: SHARP KABUSHIKI KAISHAInventor: Shingo Kataoka
-
Patent number: 7224421Abstract: A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic 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 two substrates includes a structure as domain regulating means, to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.Type: GrantFiled: October 12, 2000Date of Patent: May 29, 2007Assignee: 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
-
Publication number: 20070064187Abstract: 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: November 16, 2006Publication date: March 22, 2007Inventors: 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: 7193672Abstract: A vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment with linear structures or slits consisting of a plurality of constituent units on at least one of a pair of substrates. In one configuration, an alignment controlling means forms an alignment singular points s=+1 of liquid crystal molecules at an intersecting point between the structures (or slits) and an edge of a pixel electrode. Preferably, at least one of the constituent units has bending portions over a capacitive bus line. In one preferred embodiment, the height of a portion of the linear structure opposite an edge of a pixel electrode is higher than other areas of the linear structures. Additionally, all liquid crystal molecules around an intersecting point between the structures or the slits formed on one substrate and an edge of a pixel electrode formed on the other substrate are preferably aligned to the intersecting point.Type: GrantFiled: August 20, 2004Date of Patent: March 20, 2007Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
-
Publication number: 20070042279Abstract: A light blocking mask covering half of a picture element is formed on a first substrate. Thereafter, the first substrate and a second substrate are placed to face each other, and liquid crystals with negative dielectric anisotropy are sealed between these substrates, whereby a liquid crystal panel is formed. A polymer constituent which is polymerized by light is added in advance to the liquid crystals. Next, ultraviolet is irradiated from the side of the first substrate, and, after removing the light blocking mask, ultraviolet is once again irradiated. Thus, in picture element, a region where binding force with respect to liquid crystal molecules is large (a region where a threshold voltage in transmittance-voltage characteristics is high) and a region where binding force with respect to liquid crystal molecules is small (a region where a threshold voltage in transmittance-voltage characteristics is low) are formed.Type: ApplicationFiled: March 21, 2006Publication date: February 22, 2007Applicant: SHARP KABUSHIKI KAISHAInventors: Shingo Kataoka, Hiroyasu Inoue
-
Patent number: 7167224Abstract: 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: GrantFiled: October 4, 2000Date of Patent: January 23, 2007Assignee: 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
-
Patent number: 7145622Abstract: 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. And, 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. Then, the liquid crystal molecules substantially tilt in the first direction in the driving state.Type: GrantFiled: July 11, 2001Date of Patent: December 5, 2006Assignee: Sharp Kabushiki KaishaInventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida
-
Publication number: 20060262261Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.Type: ApplicationFiled: July 31, 2006Publication date: November 23, 2006Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
-
Publication number: 20060250556Abstract: This liquid crystal display device comprises electrodes that are formed on at least one of a pair of substrates, and are used for applying voltage onto liquid crystal molecules; a first alignment control layer that is sandwiched between the substrates, and makes the liquid crystal molecules aligned vertically; a liquid crystal layer formed by sandwiching a liquid crystal composition comprising a liquid crystal and a photopolymerizable compound between the substrates, followed by ultraviolet ray irradiation; and a second alignment control layer composed of a UV-cured product formed by the ultraviolet ray irradiation that is formed so that not less than two domains having different threshold voltages are present in a pixel, and at least one of the domains has a threshold voltage higher than the threshold voltage by the first alignment control layer. Liquid crystal display devices having good half-tone viewing angle characteristics are provided.Type: ApplicationFiled: October 20, 2005Publication date: November 9, 2006Inventors: Shingo Kataoka, Yoshio Koike
-
Publication number: 20060209240Abstract: The invention relates to a vertical alignment type liquid crystal display and a method of manufacturing the same and provides a liquid crystal display and a method of manufacturing the same which allow a reduction of manufacturing cost. A configuration is employed, which includes a pair of substrates provided opposite to each other, a liquid crystal sealed between the substrates, and a photo-curing material for controlling the alignment of the liquid crystal, the photo-curing material being formed in the vicinity of an interface between the liquid crystal and the pair of substrates as a result of polymerization of a polymerizable component mixed in the liquid crystal, the reaction being promoted by a photo-initiator including no chlorine atom.Type: ApplicationFiled: November 16, 2005Publication date: September 21, 2006Inventor: Shingo Kataoka
-
Patent number: 7110074Abstract: A liquid crystal display device including a first substrate on which a first electrode and a bus line for transmitting a signal to the first electrode are formed; a second substrate on which a second electrode is formed; and domain defining projections provided on one of the first substrate and the second substrate. A plurality of domain defining slits are provided on the electrode on the other of the first substrate and the second substrate to be aligned on a straight line, and liquid crystal having negative dielectric anisotropy is sealed between the first substrate and the second substrate. A width of a bus line opposite side end of a first slit of the plurality of slits, that is positioned closest to the bus line, is set smaller than a width of a bus line side end of a second slit positioned adjacent to the first slit.Type: GrantFiled: March 2, 2004Date of Patent: September 19, 2006Assignee: Sharp Kabushiki KaishaInventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
-
Publication number: 20060097970Abstract: Fine electrode patterns pattern-formed in the shape of fine teeth of a comb bilaterally symmetrical with respect to band-shaped portions are formed at even intervals in a pixel electrode, and band-shaped dielectric layers are pattern-formed at even intervals to cover the fine electrode patterns in a display pixel. By the existence of the dielectric layer and the fine electrode pattern complementing this, a portion formed with these layer and fine electrode pattern is a high threshold voltage region, and relatively, a low threshold voltage region where the dielectric layer does not exist is formed. By the aforementioned construction, it becomes possible to improve a delay in response speed at low gray levels and increase the speed of halftone response, whereby a very reliable image display having moving image performance almost equal to that of a CRT is realized.Type: ApplicationFiled: October 15, 2005Publication date: May 11, 2006Applicants: Fujitsu Display Technologies Corporation, SHARP KABUSHIKI KAISHAInventors: Arihiro Takeda, Shingo Kataoka, Kimiaki Nakamura, Hideaki Tsuda, Takahiro Sasaki, Kazuya Ueda, Masahiro Ikeda, Katsunori Misaki, Naoto Kondo, Akira Komorita
-
Publication number: 20060089473Abstract: The present invention provides compounds having in their molecule a structure contributing to high hydrophilicity, and having high photopolymerizability, as well as polymers of such compounds, and a method for producing the compound. The compounds are diol (meth)acrylate having a urethane bond represented by the formula (1), and cyclic ketal (meth)acrylate having a urethane bond represented by the formula (2): (R1: H, —CH3; R2: —(CH2)n-; R3: —(CH2)m-; n: 1-4; m: 1-8; (AO) : C2-C4 oxyalkylene group; x: 0-1000; R4, R5: H, —CH3, —C2H5).Type: ApplicationFiled: October 25, 2005Publication date: April 27, 2006Applicant: NOF CorporationInventors: Eui-chul Kang, Atsuhiko Ogura, Shingo Kataoka, Takashi Iwata