Patents by Inventor Masahiro Horiguchi
Masahiro Horiguchi 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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Publication number: 20170066967Abstract: The invention provides a polymerizable composition including a compound that has a mesogenic group and satisfying an expression represented by Expression (1): 1.0?YI/?n?50.0, wherein YI represents a yellowness index of a material including only a compound having a mesogenic group in the polymerizable composition, and ?n represents a refractive index anisotropy of a material including only a compound having a mesogenic group in the polymerizable composition, with the proviso that a chiral compound having a mesogenic group is excluded in the material including only the compound having the mesogenic group. The polymerizable composition has high storage stability and is unlikely to cause an increase of the content of a polymer component when being added to a polymerizable liquid crystal composition, and is excellent in adhesiveness, is not unlikely to cause discoloration, and exhibits good coating properties and good alignment properties in preparing an optical anisotropic body.Type: ApplicationFiled: February 24, 2015Publication date: March 9, 2017Applicant: DIC CorporationInventors: Mika Yamamoto, Masahiro Horiguchi, Yasuhiro Kuwana
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Publication number: 20160137921Abstract: The polymerizable composition and the liquid crystal composition containing the polymerizable compound of the present invention have favorable storage stability as evaluated on the basis of the occurrence of precipitation, separation, or the like of crystals during storage. The present invention relates to a polymerizable compound, a liquid crystal composition which contains the compound, and further a liquid crystal display element which contains an optically anisotropic material which is a cured product of the liquid crystal composition, or a cured product which controls alignment of liquid crystal molecules. That is, the present invention relates to a polymerizable compound, and a liquid crystal composition containing the polymerizable compound which contains the polymerizable compound and a liquid crystal compound. The polymerizable compound is a compound represented by General Formula (I), and is useful for an optically anisotropic material, a retardation layer, an alignment film, or a polarizing layer.Type: ApplicationFiled: March 18, 2014Publication date: May 19, 2016Applicant: DIC CORPORATIONInventors: Masanao Hayashi, Masahiro Horiguchi, Tetsuo Kusumoto
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Publication number: 20150361190Abstract: An object of the invention is to provide a polymerizable compound having small refractive index anisotropy and having high storage stability and high alignment properties when constituting a polymerizable liquid crystal composition, and provide a polymerizable liquid crystal composition containing the polymerizable compound. Further, the object is to provide a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer. The present invention provides a polymerizable compound represented by general formula (I), a polymerizable liquid crystal composition containing the compound as a constituent component, and further provides a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer.Type: ApplicationFiled: August 14, 2015Publication date: December 17, 2015Applicant: DIC CORPORATIONInventors: Tetuo Kusumoto, Masahiro Horiguchi, Takashi Matsumoto, Yoshio Aoki, Masanao Hayashi, Masayuki Iwakubo
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Publication number: 20150324054Abstract: An interactive system includes a transmitter (light-emitting pen) configured to transmit an optical signal and a projector. The projector includes a signal-intensity setting unit in which intensity information of a synchronization signal is set, a signal-intensity control unit (light-emission control unit) configured to control the intensity of the synchronization signal on the basis of the setting of the signal-intensity setting unit, a synchronization-signal transmitting unit (infrared-light emitting unit) configured to transmit the synchronization signal, and an image pickup unit configured to pick up an image of the optical signal transmitted from the transmitter. The transmitter includes a receiving unit (pen reception unit) configured to receive the synchronization signal and an optical-signal transmitting unit (pen control unit and a light-emitting diode) configured to transmit the optical signal in synchronization with the synchronization signal received by the receiving unit.Type: ApplicationFiled: September 13, 2013Publication date: November 12, 2015Inventors: Yasuyuki KOBAYASHI, Takaaki KOYAMA, Nobuyuki OTSUKI, Masahiro HORIGUCHI, Yukihiro KARASAWA
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Patent number: 9120883Abstract: An object of the invention is to provide a polymerizable compound having small refractive index anisotropy and having high storage stability and high alignment properties when constituting a polymerizable liquid crystal composition, and provide a polymerizable liquid crystal composition containing the polymerizable compound. Further, the object is to provide a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer. The present invention provides a polymerizable compound represented by general formula (I), a polymerizable liquid crystal composition containing the compound as a constituent component, and further provides a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer.Type: GrantFiled: April 5, 2012Date of Patent: September 1, 2015Assignee: DIC CORPORATIONInventors: Tetuo Kusumoto, Masahiro Horiguchi, Takashi Matsumoto, Yoshio Aoki, Masanao Hayashi, Masayuki Iwakubo
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Patent number: 8711311Abstract: The present invention provides a fringe field switching (FFS) mode liquid crystal display panel including a plurality of scanning lines 12 and common lines 13 provided in parallel, a plurality of signal lines 14 provided in a crank manner in a direction perpendicular to the scanning lines 12, and pixel electrodes 181 and 182 each formed between the plurality of scanning lines 12 and signal lines 14 in a delta arrangement. Each of the pixel electrodes 181 and 182 has a plurality of slits 171 and 172, respectively, inclined in different directions to each other with respect to an axis x parallel to the scanning lines 12 and positioned between adjacent scanning lines 12. The pixel electrodes 181 in odd-numbered rows and the pixel electrodes 182 in even-numbered rows are inverted to each other with respect to another axis perpendicular to the axis x.Type: GrantFiled: March 23, 2007Date of Patent: April 29, 2014Assignee: Japan Display West Inc.Inventors: Hideki Kaneko, Masahiro Horiguchi
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Publication number: 20140077922Abstract: A contactless potentiometer includes a shaft and a magnet rotatable together with the shaft and detects a rotational angle of the shaft corresponding to a change in magnetic fields caused by the rotation of the magnet, the magnet being held in a tip end portion of the shaft. The potentiometer includes a cover member attached to a housing at a tip end side of the shaft and arranged to define a closed sensor area between the cover member and the housing, and a circuit board mounted to the cover member at a side of the sensor area in a perpendicular or substantially perpendicular relationship with the shaft. The cover member includes a recess portion arranged on a surface of the cover member facing the circuit board, the recess portion cooperating with the circuit board to define a component-mounting spare space.Type: ApplicationFiled: September 12, 2013Publication date: March 20, 2014Applicant: NIDEC SERVO CORPORATIONInventors: Masahiro HORIGUCHI, Masaru YAMANOI
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Publication number: 20140080990Abstract: An object of the invention is to provide a polymerizable compound having small refractive index anisotropy and having high storage stability and high alignment properties when constituting a polymerizable liquid crystal composition, and provide a polymerizable liquid crystal composition containing the polymerizable compound. Further, the object is to provide a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer. The present invention provides a polymerizable compound represented by general formula (I), a polymerizable liquid crystal composition containing the compound as a constituent component, and further provides a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer.Type: ApplicationFiled: April 5, 2012Publication date: March 20, 2014Applicant: DIC CORPORATIONInventors: Tetuo Kusumoto, Masahiro Horiguchi, Takashi Matsumoto, Yoshio Aoki, Masanao Hayashi, Masayuki Iwakubo
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Patent number: 8432510Abstract: Provided is a liquid crystal display device including: a liquid crystal display panel; a light detector which is mounted on the liquid crystal display panel and has a plurality of TFT ambient light photo-sensors composed of thin-film transistors (TFTs) for detecting external light; an illumination unit which illuminates light on the liquid crystal display panel; a detection circuit connected to the light detector; and a control unit which controls the brightness of the illumination unit on the basis of the output of the detection circuit, wherein the plurality of TFT ambient light photo-sensors include first and second TFT ambient light photo-sensors for detecting lights of different systems, and, among source wires or drain wires of the first TFT ambient light photo-sensors and the second TFT ambient light photo-sensors, wires which are not connected to the detection circuit are formed by a single wire.Type: GrantFiled: September 24, 2008Date of Patent: April 30, 2013Assignee: Sony CorporationInventors: Masahiro Horiguchi, Takashi Kunimori
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Patent number: 8411237Abstract: A liquid crystal device includes display pixels corresponding to at least a color of white or non-coloring and one color different from the color of white or non-coloring. Each of the display pixels corresponding to one color have a transmissive region and a reflective region. Each of the display pixels corresponding to the color of white or non-coloring have only a transmissive region. Colored layers are provided in the display pixels that correspond to one color, and cell-thickness-adjusting layers are included in the reflective region of each of the display pixels corresponding to one color and the transmissive region of each of the display pixels corresponding to the color of white or non-coloring. For the display pixels corresponding to one color, a thickness of a layer crystal layer corresponding to the transmissive region is larger than a thickness of the liquid crystal layer that corresponds to the reflective region.Type: GrantFiled: January 30, 2009Date of Patent: April 2, 2013Assignee: Sony CorporationInventor: Masahiro Horiguchi
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Patent number: 8243242Abstract: A liquid crystal display device includes a pair of substrates, a plurality of gate lines arranged in parallel, a plurality of common lines arranged in parallel, a plurality of source lines arranged in such a manner that the direction of the source lines intersects the direction of the gate lines and the common lines, thin-film transistors arranged in the vicinity of intersections of the gate lines and source lines, lower electrodes arranged in respective regions separated by the plurality of gate lines and the plurality of source lines, the lower electrodes being connected to the common lines and composed of a transparent conductive material, upper electrodes arranged on surfaces of the respective lower electrodes with an insulating film provided between the upper electrode and the lower electrode, each of the upper electrodes having a plurality of slits arranged in parallel with one another, the gate lines, the common lines, the source lines, the thin-film transistors, the lower electrodes, and upper electroType: GrantFiled: July 24, 2008Date of Patent: August 14, 2012Assignee: Sony CorporationInventors: Masahiro Horiguchi, Hideki Kaneko, Shunichi Nakashima, Hiroyuki Ito
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Patent number: 8218116Abstract: A mounting terminal portion 33A of an FFS mode liquid crystal display panel includes a gate insulator 14 and a passivation film 17 covering a surface of a wiring 34 for a mounting terminal, a contact hole 36a penetrating therethrough, a first transparent conductive film 38 electrically connected to the wiring 34 for a mounting terminal, an insulator 23 formed with an opening 36b having a smaller diameter than the diameter of the contact hole 36a in a central part of the first transparent conductive film 38, and a mounting terminal formed of a second transparent conductive film 41 electrically connected to the first transparent conductive film 38.Type: GrantFiled: July 25, 2008Date of Patent: July 10, 2012Assignee: Sony CorporationInventors: Hideki Kaneko, Masahiro Horiguchi
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Patent number: 8098357Abstract: A liquid crystal display includes: a pair of substrates which are disposed so as to be opposite each other and have a liquid crystal layer interposed therebetween; an upper electrode configured to be included in one substrate of the pair of substrates, and be formed so as to have a plurality of slits therein; and a lower electrode configured to be included in the one substrate of the pair of substrates, and be formed on an insulating film covering the upper electrode so as to be partially overlapped with the upper electrode in plan view; wherein the lower electrode has at least one slit which is formed so as to be parallel with the plurality of slits formed in the upper electrode; and wherein the at least one slit formed in the lower electrode is formed so as to be overlapped with the upper electrode in plan view.Type: GrantFiled: May 19, 2009Date of Patent: January 17, 2012Assignee: Sony CorporationInventor: Masahiro Horiguchi
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Patent number: 8072569Abstract: A Fringe Field Switching (“FFS”) mode liquid crystal display panel 10A includes an array substrate having first electrodes 14 each provided in a space delimited by a plurality of scan lines 12 and signal lines 17, second electrodes 21 provided on the first electrodes 14 with an insulator therebetween, and a plurality of slits 20A provided to each of the second electrodes 21 in parallel with one another in a direction crossing the signal lines 17; and a color filter substrate having a color filter layer. Each of the slits 20A has an open end 20A? on one side. The color filter layer has a centerline 30 extending along the signal lines 17 for individual pixels, and the centerline 30 coincides with a display centerline 32 that is shifted toward the open end side of the slits from a centerline 31 of each second electrode as viewed from above.Type: GrantFiled: September 13, 2007Date of Patent: December 6, 2011Assignee: Sony CorporationInventors: Hideki Kaneko, Masahiro Horiguchi
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Patent number: 8068203Abstract: A liquid crystal display device includes two substrates, liquid crystal therebetween, and sub-pixel regions. Each sub-pixel region is divided into first to fourth display regions by a first axis extending orthogonal to an optical axis of a polarizing plate and a second axis extending orthogonal to the first axis. Each first to fourth display region includes slit electrodes on the second electrodes along the first axis. First slit electrodes in the first display region and second slit electrodes in the second display region are symmetric relative to the first axis. Third slit electrodes in the third display region and fourth slit electrodes in the fourth display region are symmetric relative to the first axis. The first and fourth slit electrodes are symmetric relative to the second axis. The second and third slit electrodes are symmetric relative to the second axis.Type: GrantFiled: January 30, 2009Date of Patent: November 29, 2011Assignee: Sony CorporationInventors: Shinichiro Nomura, Hideki Kaneko, Masahiro Horiguchi
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Patent number: 8018565Abstract: A horizontal electric field-type liquid crystal display panel includes a plurality of scanning lines that are disposed parallel to each other, a common wiring, a plurality of signal lines that are disposed in a direction for intersecting the plurality of scanning lines, a switching element that is disposed near an intersection between the scanning line and the signal line, a first electrode formed in an area partitioned by the scanning line and the signal line, and a second electrode that is formed to be overlapped with the first electrode though an insulation film disposed on the first electrode and has a plurality of slits in the shape of a stripe. A shield electrode formed of a conductive material is formed on the surface of the insulation film disposed on the scanning line, and the shield electrode is connected to the common wiring through a contact hole formed on the common wiring.Type: GrantFiled: April 15, 2008Date of Patent: September 13, 2011Assignee: Sony CorporationInventors: Masahiro Horiguchi, Hideki Kaneko
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Patent number: 7903220Abstract: Provided is a liquid crystal display device including: a pair of transparent substrates including a liquid crystal layer interposed therebetween, wherein, at the liquid crystal layer side of one of the pair of transparent substrates, a plurality of scan lines and a plurality of signal lines are arranged in a display area in a matrix, first electrodes are formed in pixel areas partitioned by the scan lines and the signal lines, a second electrode is formed on the first electrodes with an insulating film interposed therebetween over at least the display area, a common line is formed outside the display area, and the second electrode is electrically connected to the common line via a low-resistance line which is formed along at least one side of the display area.Type: GrantFiled: August 25, 2008Date of Patent: March 8, 2011Assignee: Sony CorporationInventors: Hideki Kaneko, Masahiro Horiguchi, Osamu Kobayashi
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Patent number: 7787091Abstract: A transverse field type liquid crystal display panel has multiple scan lines 12 and common wires 13 provided in parallel, multiple signal lines 17 provided in the direction crossing the scan lines 12, and common electrodes 14 and pixel electrodes 21 formed in the regions delimited by the multiple scan lines 12 and signal lines 17. At least part of the surface of an insulator laid over the scan lines 17 is covered by shield electrodes 22 constituted of a conductive material. Thanks to such structure, there can be provided a transverse field type—that is, an IPS mode or FFS mode—liquid crystal display panel that is equipped with a device for preventing burn-in due to the voltage that is applied to the scan lines.Type: GrantFiled: August 8, 2007Date of Patent: August 31, 2010Assignee: Sony CorporationInventors: Masahiro Horiguchi, Hideki Kaneko, Hidetoshi Murai, Hayato Kurasawa, Yasuo Segawa
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Patent number: 7701533Abstract: An electro-optical device includes: a plurality of display pixels each of which has two Red sub-pixels, two Green sub-pixels, one Blue sub-pixel, and one transparent sub-pixel; and a colored layer which is partially formed on the Red, Green, and Blue sub-pixels. In the electro-optical device, uncolored portions are formed in parts of the Red and Green sub-pixels where the colored layer is not formed.Type: GrantFiled: July 7, 2006Date of Patent: April 20, 2010Assignee: Epson Imaging Devices CorporationInventors: Kazu Kobayashi, Chihiro Tanaka, Masahiro Horiguchi, Toshinori Uehara, Hideki Kaneko, Shinichiro Tanaka
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Publication number: 20100002179Abstract: A liquid crystal display includes: a pair of substrates which are disposed so as to be opposite each other and have a liquid crystal layer interposed therebetween; an upper electrode configured to be included in one substrate of the pair of substrates, and be formed so as to have a plurality of slits therein; and a lower electrode configured to be included in the one substrate of the pair of substrates, and be formed on an insulating film covering the upper electrode so as to be partially overlapped with the upper electrode in plan view; wherein the lower electrode has at least one slit which is formed so as to be parallel with the plurality of slits formed in the upper electrode; and wherein the at least one slit formed in the lower electrode is formed so as to be overlapped with the upper electrode in plan view.Type: ApplicationFiled: May 19, 2009Publication date: January 7, 2010Applicant: EPSON IMAGING DEVICES CORPORATIONInventor: Masahiro HORIGUCHI