Patents by Inventor Akihito Jinda
Akihito Jinda 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: 9552785Abstract: Provided is a liquid crystal display device in which both a vertical electric field and a horizontal electric field are used and flickering is hardly recognized. The liquid crystal display device includes a liquid crystal panel and a control unit. The control unit includes a horizontal electric field control unit and a vertical electric field control unit. The horizontal electric field control unit controls the potentials of pairs of drive electrodes included in the liquid crystal panel, and thereby controls a horizontal electric field that is generated between each pair of drive electrodes. The vertical electric field control unit controls the potentials of a common electrode and an opposite electrode included in the liquid crystal panel, and thereby controls a vertical electric field that is generated between the common electrode and the opposite electrode.Type: GrantFiled: December 13, 2013Date of Patent: January 24, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Kohhei Tanaka, Mitsuhiro Murata, Akihito Jinda, Yosuke Iwata
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Patent number: 9494832Abstract: Provided is a liquid crystal display device having excellent viewing angle characteristics and high contrast in a display mode using both a vertical electric field and a horizontal electric field. This liquid crystal display device is provided with a first substrate and a second substrate disposed facing each other, and a liquid crystal layer held between said first and second substrates. The liquid crystal layer contains liquid crystal molecules having a negative dielectric anisotropy. The first substrate is provided with a flat plate first electrode, a first insulating layer, and a second electrode provided in a layer other than that of the first electrode and provided separated from the first electrode by the first insulating layer. The second electrode has multiple comb-tooth sections and multiple slits, and the second substrate has a flat plate third electrode.Type: GrantFiled: July 16, 2013Date of Patent: November 15, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Yosuke Iwata, Mitsuhiro Murata, Kohhei Tanaka, Akihito Jinda, Hidefumi Yoshida
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Patent number: 9489912Abstract: Provided is a liquid crystal display apparatus employing a drive method whereby nonuniform electric field is not generated in pixels. This liquid crystal display apparatus is provided with a first substrate, a first electrode, a second electrode, a second substrate, a common electrode, a counter electrode, a liquid crystal layer, and a drive unit. The drive unit executes drive operations including: operations of setting the potential of the first electrode at a low level, the potential of the second electrode at a high level, and the potential of the counter electrode at the high level; operations of setting the potential at the high level, the potential at the low level, and the potential at the high level; operations of setting the potential at the low level, the potential at the high level, and the potential at the low level; and operations of setting the potential at the high level, the potential at the low level, and the potential at the low level.Type: GrantFiled: July 1, 2013Date of Patent: November 8, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Akihito Jinda, Mitsuhiro Murata, Kohhei Tanaka, Yosuke Iwata
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Publication number: 20150325187Abstract: Provided is a liquid crystal display device in which both a vertical electric field and a horizontal electric field are used and flickering is hardly recognized. The liquid crystal display device includes a liquid crystal panel and a control unit. The control unit includes a horizontal electric field control unit and a vertical electric field control unit. The horizontal electric field control unit controls the potentials of pairs of drive electrodes included in the liquid crystal panel, and thereby controls a horizontal electric field that is generated between each pair of drive electrodes. The vertical electric field control unit controls the potentials of a common electrode and an opposite electrode included in the liquid crystal panel, and thereby controls a vertical electric field that is generated between the common electrode and the opposite electrode.Type: ApplicationFiled: December 13, 2013Publication date: November 12, 2015Applicant: Sharp Kabushiki KaishaInventors: Kohhei TANAKA, Mitsuhiro MURATA, Akihito JINDA, Yosuke IWATA
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Publication number: 20150301412Abstract: The present invention provides an ON-ON switching mode liquid crystal display device capable of enabling multi-V-T within a pixel and adequately improving viewing angle properties while adequately preventing any decrease in the liquid crystal molecule rising response rate.Type: ApplicationFiled: October 18, 2013Publication date: October 22, 2015Applicant: Sharp Kabushiki KaishaInventors: Yosuke IWATA, Mitsuhiro MURATA, Kouhei TANAKA, Akihito JINDA
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Publication number: 20150170600Abstract: Provided is a liquid crystal display apparatus employing a drive method whereby nonuniform electric field is not generated in pixels. This liquid crystal display apparatus is provided with a first substrate, a first electrode, a second electrode, a second substrate, a common electrode, a counter electrode, a liquid crystal layer, and a drive unit. The drive unit executes drive operations including: operations of setting the potential of the first electrode at a low level, the potential of the second electrode at a high level, and the potential of the counter electrode at the high level; operations of setting the potential at the high level, the potential at the low level, and the potential at the high level; operations of setting the potential at the low level, the potential at the high level, and the potential at the low level; and operations of setting the potential at the high level, the potential at the low level, and the potential at the low level.Type: ApplicationFiled: July 1, 2013Publication date: June 18, 2015Applicant: Sharp Kabushiki KaishaInventors: Akihito Jinda, Mitsuhiro Murata, Kohhei Tanaka, Yosuke Iwata
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Publication number: 20150153620Abstract: Provided is a liquid crystal display device having excellent viewing angle characteristics and high contrast in a display mode using both a vertical electric field and a horizontal electric field. This liquid crystal display device is provided with a first substrate and a second substrate disposed facing each other, and a liquid crystal layer held between said first and second substrates. The liquid crystal layer contains liquid crystal molecules having a negative dielectric anisotropy. The first substrate is provided with a flat plate first electrode, a first insulating layer, and a second electrode provided in a layer other than that of the first electrode and provided separated from the first electrode by the first insulating layer. The second electrode has multiple comb-tooth sections and multiple slits, and the second substrate has a flat plate third electrode.Type: ApplicationFiled: July 16, 2013Publication date: June 4, 2015Applicant: Sharp Kabushiki KaishaInventors: Yosuke Iwata, Mitsuhiro Murata, Kohhei Tanaka, Akihito Jinda, Hidefumi Yoshida
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Patent number: 9019455Abstract: A liquid crystal display device includes a vertical alignment liquid crystal layer, first and second substrates, first and second electrodes, and a pixel region which includes first, second, third and fourth liquid crystal domains in which liquid crystal molecules are tilted in first, second, third and fourth directions, respectively. The first liquid crystal domain is located close to at least a part of an edge of the first electrode, the second liquid crystal domain is located close to at least a part of another edge of the first electrode, the third liquid crystal domain is located close to at least a part of still another edge of the first electrode, and the fourth liquid crystal domain is located close to at least a part of yet another edge of the first electrode.Type: GrantFiled: December 3, 2012Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
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Publication number: 20150098033Abstract: Provided are a liquid crystal display device and a liquid crystal driving method which can suitably switch between a driving operation with excellent visibility and a driving operation with an excellent response speed.Type: ApplicationFiled: March 27, 2013Publication date: April 9, 2015Inventors: Mitsuhiro Murata, Yosuke Iwata, Kohhei Tanaka, Akihito Jinda
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Patent number: 8502917Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.Type: GrantFiled: February 22, 2011Date of Patent: August 6, 2013Assignee: Sharp Kabushiki KaishaInventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
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LIQUID CRYSTAL DISPLAY PANEL, LIQUID CRYSTAL DISPLAY DEVICE, AND POLYMER FOR ALIGNMENT FILM MATERIAL
Publication number: 20130155362Abstract: In a photo-alignment liquid crystal panel capable of achieving a uniform display quality and highly reliable photo-alignment properties, and excellent electro-optical properties (transmittance, contrast, viewing angle, and response) for improving a basic performance and a high image quality of a liquid crystal panel and a liquid crystal display device, a structural composition of a polymer, which is preferable as a photo-alignment film, is unclear. The invention optimizes a copolymerization ratio and a modification rate of a photopolymer in order for a compound having photo-alignment properties to be contained as the photo-alignment film so as to enable the photo-alignment film to have the photo-alignment properties, and achieves the discovery of a preferred structural composition of the polymer.Type: ApplicationFiled: August 23, 2011Publication date: June 20, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Shinichi Terashita, Yuko Teraoka, Kouichi Matsuhashi, Akihito Jinda -
Patent number: 8345197Abstract: A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction.Type: GrantFiled: June 29, 2011Date of Patent: January 1, 2013Assignee: Sharp Kabushiki KaishaInventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
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Patent number: 8330890Abstract: A plurality of display elements each includes two signal lines: S1 and S2. An electrode 4, which is one of the electrodes constituting an element capacitor Cp, is connected to the signal line S1 via a switching element TFT1, while the other electrode 5 is connected to the signal line S2 via a switching element S2. The gate electrodes of the switching elements TFT1 and TFT2 are connected to a single common scanning line G. With this structure the drive voltage applied to the element capacitor can be increased even when a TFT has a limited withstand pressure.Type: GrantFiled: June 15, 2010Date of Patent: December 11, 2012Assignee: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Kiyoshi Ogishima, Akihito Jinda
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Publication number: 20120002144Abstract: A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction.Type: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicant: Sharp Kabushiki KaishaInventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
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Patent number: 8026992Abstract: A plurality of display elements each includes two signal lines: S1 and S2. An electrode 4, which is one of the electrodes constituting an element capacitor Cp, is connected to the signal line S1 via a switching element TFT1, while the other electrode 5 is connected to the signal line S2 via a switching element S2. The gate electrodes of the switching elements TFT1 and TFT2 are connected to a single common scanning line G. With this structure the drive voltage applied to the element capacitor can be increased even when a TFT has a limited withstand pressure.Type: GrantFiled: October 13, 2009Date of Patent: September 27, 2011Assignee: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Kiyoshi Ogishima, Akihito Jinda
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Patent number: 7995177Abstract: A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction.Type: GrantFiled: June 9, 2006Date of Patent: August 9, 2011Assignee: Sharp Kabushiki KaishaInventors: Akihiro Shoraku, Toshihide Tsubata, Koichi Miyachi, Iichiro Inoue, Akihiro Yamamoto, Yoshito Hashimoto, Masumi Kubo, Akihito Jinda
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Publication number: 20110141370Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.Type: ApplicationFiled: February 22, 2011Publication date: June 16, 2011Inventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
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Publication number: 20110134154Abstract: The cold cathode tube for illuminating pixels with light which is in accordance with an output signal has luminance which gradually increases at a rise and gradually decreases at a fall per one frame time. The cold cathode tube contains a fluorescent material of only one of three primary colors of light, and has a certain OFF period or dimming period per one frame time. Between a diffusing plate and a reflecting plate are provided partition walls for parting emitting areas, so that the illumination light of one cold cathode tube does not reach the display elements to be illuminated by the other cold cathode tubes. The emission of each display element is changed per one frame time between a normal ON state and a dim state. The cold cathode tube has two or more OFF periods within one frame time, and luminance of the cold cathode tube is changed per one frame period.Type: ApplicationFiled: January 31, 2011Publication date: June 9, 2011Applicant: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Akihito Jinda, Makoto Shiomi
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Patent number: 7956823Abstract: A color display device determines a relationship between RGB components of an input color image signal in terms of their gradation levels, and carries out a different calculation for each input color image signal depending on which of six patterns of the relationship that the input color image signal belongs to. Further, the color display device carries out the calculation for each of the RGB components excluding a component with a smallest gradation level, using variables that vary depending on the respective gradation levels of the RGB components.Type: GrantFiled: April 16, 2004Date of Patent: June 7, 2011Assignee: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Akihito Jinda, Hidekazu Miyata, Kazunari Tomizawa, Makoto Shiomi
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Patent number: 7916213Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.Type: GrantFiled: March 15, 2007Date of Patent: March 29, 2011Assignee: Sharp Kabushiki KaishaInventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda