Patents by Inventor Yoshio Koike
Yoshio Koike 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: 8508702Abstract: 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: GrantFiled: October 20, 2005Date of Patent: August 13, 2013Assignee: Sharp Kabushiki KaishaInventors: Shingo Kataoka, Yoshio Koike
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Patent number: 8502762Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.Type: GrantFiled: March 30, 2004Date of Patent: August 6, 2013Assignee: Sharp Kabushiki KaishaInventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
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Publication number: 20130162921Abstract: 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: September 13, 2012Publication date: June 27, 2013Applicant: 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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Patent number: 8471994Abstract: A liquid crystal display device including first and second substrates, with a liquid crystal layer sealed therebetween; and first and second electrodes formed, respectively, on the first and second substrates. A first molecule orientation film is formed on the first substrate so as to cover the first electrode and a second molecule orientation film formed on the second substrate so as to cover the second electrode. A polarizer with a light absorption axis P is provided outside of the first substrate, and an analyzer with a light absorption axis A is provided outside of the second substrate. The light absorption axis A crosses the light absorption axis P. A plurality of micro structures are associated with at least one of the first and second electrodes, wherein the micro structures are obliquely arranged with respect to the light absorption axis P and the light absorption axis A.Type: GrantFiled: March 18, 2011Date of Patent: June 25, 2013Assignee: 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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Patent number: 8464220Abstract: A web server 2 capable of performing a test of a web application comprises: a web application processing section 22 that performs processing for POST data received from a client 1 and, based on the processing result, generates a document to be transmitted to the client 1; and a test processing section 21 that embeds a test program for automatically transmitting the POST data from the client 1 to the web server 2 in the document to allow the client 1 to execute the test program when the test of a web application is performed.Type: GrantFiled: June 5, 2007Date of Patent: June 11, 2013Assignee: Fujitsu LimitedInventor: Yoshio Koike
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Patent number: 8427610Abstract: A liquid crystal display device includes a pair of substrates provided opposite to each other, a common electrode provided on one of the pair of substrates, and a pixel electrode provided on the other of the pair of substrates. A vertical alignment type liquid crystal is sealed between the pair of substrates. An alignment film is polymerizable upon irradiation of UV, and is obtained by polymerizing substantially the entire alignment film with a voltage applied between the electrodes after the liquid crystal is sealed between the substrates. A pixel region has areas whose electro-optical characteristics are different from each other because of a difference between applied voltages at the time of polymerization.Type: GrantFiled: May 23, 2011Date of Patent: April 23, 2013Assignee: Sharp Kabushiki KaishaInventors: Kazuya Ueda, Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Kenji Okamoto, Yuichi Inoue, Seiji Tanuma
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Publication number: 20130010221Abstract: A liquid crystal display device is provided which has a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, in which liquid crystal molecules are vertically aligned with respect to the substrates when no voltage is applied between the substrates and the liquid crystal molecules tilt in a plurality of directions to be almost parallel to the substrates by applying a voltage between the substrates. In the liquid crystal layer, when the voltage is applied, a proportion of a region where the liquid crystal molecules tilt in a direction of 0 degrees to 180 degrees is different from a proportion of a region where the liquid crystal molecules tilt in a direction of 180 degrees to 360 degrees with the angle being defined counterclockwise with the right direction on a screen being 0 degrees.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Hidefumi Yoshida, Takashi Sasabayashi, Arihiro Takeda, Yasutoshi Tasaka, Hideo Chida, Yoshio Koike
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Patent number: 8314760Abstract: A liquid crystal display including a pair of substrates; a liquid crystal sealed between the substrates; alignment regulating structures formed on at least one of the substrates; and a plurality of pixel regions having both of a first area in which the alignment regulating structures are disposed at first intervals and which has a first threshold voltage for driving of the liquid crystal and a second area in which the alignment regulating structures are disposed at second intervals smaller than the first intervals and which has a second threshold voltage lower than the first threshold voltage. Each of the first intervals is a distance between adjacent alignment regulating structures along a direction parallel to one of the substrates in the first area and each of the second intervals is a distance between adjacent alignment regulating structures along a direction parallel to one of the substrates in the second area.Type: GrantFiled: June 30, 2010Date of Patent: November 20, 2012Assignee: Sharp Kabushiki KaishaInventors: Takashi Sasabayashi, Arihiro Takeda, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda
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Publication number: 20120287379Abstract: The invention provides a patterned polarization plate that contributes to reduction of crosstalk. The invention is a patterned polarization plate disposed on an observation-side surface of a display panel, having at least a patterned phase difference layer in which at least one of slow axes and retardation are mutually different and stripe-shaped first and second phase difference patterns are mutually disposed, a patterned phase difference film having a film that supports the patterned phase difference layer, and a polarization film, in which a pattern cycle direction in the patterned phase difference layer and absorption axes in the polarization film are in parallel with each other, and the polarization film is a patterned polarization plate having the absorption axes disposed in parallel with the up and down directions of a display surface of the display panel.Type: ApplicationFiled: April 26, 2012Publication date: November 15, 2012Applicant: FUJIFILM CORPORATIONInventor: Yoshio KOIKE
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Patent number: 8294860Abstract: A liquid crystal display device is provided which has a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, in which liquid crystal molecules are vertically aligned with respect to the substrates when no voltage is applied between the substrates and the liquid crystal molecules tilt in a plurality of directions to be almost parallel to the substrates by applying a voltage between the substrates. In the liquid crystal layer, when the voltage is applied, a proportion of a region where the liquid crystal molecules tilt in a direction of 0 degrees to 180 degrees is different from a proportion of a region where the liquid crystal molecules tilt in a direction of 180 degrees to 360 degrees with the angle being defined counterclockwise with the right direction on a screen being 0 degrees.Type: GrantFiled: July 1, 2011Date of Patent: October 23, 2012Assignee: Sharp Kabushiki KaishaInventors: Hidefumi Yoshida, Takashi Sasabayashi, Arihiro Takeda, Hideo Chida, Yoshio Koike, Yasutoshi Tasaka
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Patent number: 8289481Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material made of a photo-curing type material which seals liquid crystal sandwiched between substrates, and a shading film having a shading area which overlays a red-colored layer transmitting red light, a green-colored layer transmitting green light and a blue-colored layer transmitting blue light, wherein only the blue-colored layer is formed in an area of the shading film contacting with the sealing material and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.Type: GrantFiled: February 3, 2010Date of Patent: October 16, 2012Assignee: Sharp Kabushiki KaishaInventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike
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Publication number: 20120249900Abstract: A 3D image display apparatus has an image display panel; and a patterned polarization plate disposed on an observation side of the image display panel, in which the patterned polarization plate has at least a surface layer, a patterned optically anisotropic layer, and a linear polarization layer arranged sequentially from a surface on the observation side, the patterned polarization plate has at most one film between the surface layer and the patterned optically anisotropic layer and between the patterned optically anisotropic layer and the linear polarization layer respectively, the patterned polarization plate includes at most one adhesive layer, and the adhesive layer is provided between the image display panel and the patterned polarization plate.Type: ApplicationFiled: March 27, 2012Publication date: October 4, 2012Applicant: FUJIFILM CORPORATIONInventors: Yoshio KOIKE, Koushin MATSUOKA
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Publication number: 20120219729Abstract: The invention relates to a liquid crystal display utilizing a vertically aligned state of liquid crystal molecules when no voltage is applied and to a method of manufacturing the same. The liquid crystal display includes a monofunctional monomer having a structure expressed by X—R (where X represents an acrylate group or a methacrylate group, and R represents an organic group having a steroid skeleton). A liquid crystal material is sandwiched between substrates which is then irradiated with ultraviolet rays to cure the monofunctional monomer, thereby forming a polymer film at an interface of a substrate. The monofunctional monomer has a hydrophobic skeleton such as an alkyl chain and a photoreactive group on one side of the skeleton.Type: ApplicationFiled: April 18, 2012Publication date: August 30, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Shingo Kataoka, Hideaki Tsuda, Katsufumi Ohmuro, Jin Hirosawa, Seiji Tanuma, Yoshio Koike
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Publication number: 20120220181Abstract: A liquid crystal apparatus is provided wherein the liquid crystal layer comprises a section formed by polymerizing a polymerizable compound in the presence of a liquid crystal by selectively irradiating active energy rays onto the substrate surface when no voltage is applied, or alignment control layers and bumps are formed by polymerizing a polymerizable compound which is added to said liquid crystal, or first electrodes with a vertical alignment control film and a second electrode with a horizontal alignment control film face each other and alignment control of the liquid crystal is performed by irradiating light from a direction tilted from the normal line direction on said liquid crystal display apparatus. A liquid crystal display apparatus which can implement high transmittance, high-speed response and a wide viewing angle can be provided.Type: ApplicationFiled: May 9, 2012Publication date: August 30, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takashi Sasabayashi, Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka
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Publication number: 20120177847Abstract: 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: March 22, 2012Publication date: July 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Kimiaki Nakamura, Hideo Chida, Shingo Kataoka, Hidefumi Yoshida, Yoshio Koike
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Patent number: 8207922Abstract: The liquid crystal display comprises a first substrate including a first pixel electrode and a second pixel electrode, a second substrate with an opposed electrode formed on, and a liquid crystal layer sealed between the first substrate and the second substrate. The thickness d1 of the liquid crystal layer on the first pixel electrode in the first pixel region is larger than the thickness d2 of the liquid crystal layer on the second pixel electrode in the second pixel region. The first pixel region includes a first partial region and a second partial region where the threshold voltage is higher than in the first partial region. The second pixel region includes a third partial region and a fourth partial region where the threshold voltage is higher than in the third partial region.Type: GrantFiled: November 3, 2008Date of Patent: June 26, 2012Assignee: AU Optronics CorporationInventors: Kazuya Ueda, Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Kenji Okamoto
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Publication number: 20120154701Abstract: A liquid crystal display has a pair of substrates with liquid crystal sealed between them. A polymer layer regulates directions in which the liquid crystal molecules tilt. A plurality of gate bus lines and a plurality of drain bus lines are provided on one of the substrates. Color filters and a pixel electrode are provided on the substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. A common electrode is provided on the other substrate. A first thin film transistor is connected to the first sub-pixel electrode, a second thin film transistor is connected to the second sub-pixel electrode, and a third thin film transistor is connected to the second sub-pixel electrode. The first and second thin film transistors are both connected to a first gate bus line, and the third thin film transistor is connected to a second bus line.Type: ApplicationFiled: February 8, 2012Publication date: June 21, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takashi Sasabayashi, Arihiro Takeda, Hiroyasu Inoue, Kazuya Ueda, Yoshio Koike, Hideaki Tsuda, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro, Tsuyoshi Kamada, Kimiaki Nakamura
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Patent number: 8202748Abstract: A manufacturing method of a liquid crystal display apparatus, including disposing a pair of substrates to face each other, on which no surface alignment control films are formed; sealing a liquid crystal to which a polymerizable compound is added, between these substrates; polymerizing the polymerizable compound by irradiating UV rays when no voltage is applied; and forming a polymer near the surfaces of the substrates. The anchoring energy for the liquid crystal molecules on the substrate surface is controlled by controlling the composition, the adding amount and the polymerizing conditions of the polymerizable compound.Type: GrantFiled: November 15, 2010Date of Patent: June 19, 2012Assignee: Sharp Kabushiki KaishaInventors: Takashi Sasabayashi, Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka
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Publication number: 20120133864Abstract: A liquid crystal display includes a liquid crystal sealed between two substrates, and a polymer layer for regulating a pretilt angle of liquid crystal molecules and/or tilt directions at a time of driving. One of the substrates has a color filter layer formed on a side of the one substrate. A plurality of stripe-like electrode patterns are provided on the color filter layer. The patterns are periodically arranged so that when polymerizable components mixed in the liquid crystal layer are polymerized to form the polymer layer while a voltage is applied to the liquid crystal layer between the electrode patterns and a second electrode on the other substrate, liquid crystal molecules in the liquid crystal layer are aligned in the extending directions of stripe-like electrode patterns.Type: ApplicationFiled: January 12, 2012Publication date: May 31, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takahiro Sasaki, Kazutaka Hanaoka, Tsutomu Seino, Yohei Nakanishi, Seiji Tanuma, Kimiaki Nakamura, Yuichi Inoue, Masakazu Shibasaki, Hideaki Tsuda, Yoshio Koike, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro
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Patent number: RE43640Abstract: The invention relates to a liquid crystal display device used for a display part of an information equipment and a driving method thereof, and has an object to provide a liquid crystal display device in which excellent viewing angle characteristics can be obtained and a driving method thereof. When a relatively high level data voltage is applied to a gate electrode of a TFT, a driving voltage is applied to a liquid crystal layer for a long time and a white display is realized. When a relatively low level data voltage is applied to the gate electrode of the TFT, the driving voltage is not applied to the liquid crystal layer, and a black display is realized. When an intermediate data voltage between the high level and the low level is applied to the gate electrode of the TFT, the TFT keeps an on state for a time determined by a time constant depending on a capacitance and a resistance. The driving voltage is applied to the liquid crystal layer for the on time.Type: GrantFiled: March 23, 2011Date of Patent: September 11, 2012Assignee: Sharp Kabushiki KaishaInventors: Kazuya Ueda, Hidefumi Yoshida, Yuichi Inoue, Yoshio Koike