Patents by Inventor Yoshiaki Nakayoshi
Yoshiaki Nakayoshi 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: 20160077391Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: ApplicationFiled: November 16, 2015Publication date: March 17, 2016Inventors: Yoshiaki NAKAYOSHI, Kazuhiko YANAGAWA
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Patent number: 9213204Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: GrantFiled: May 11, 2015Date of Patent: December 15, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
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Publication number: 20150241742Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: ApplicationFiled: May 11, 2015Publication date: August 27, 2015Inventors: Yoshiaki NAKAYOSHI, Kazuhiko YANAGAWA
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Patent number: 9097922Abstract: There is provided a liquid crystal display (LCD) device that prevents light leaks near spacers. The LCD device controls the optical transmissivity of a liquid crystal layer interposed between substrates disposed opposite each other, by means of an electric field generated in the layer-thickness direction of the liquid crystal layer. The LCD device includes spacers on a liquid-crystal-side surface of one substrate, signal lines formed on a liquid-crystal-side surface of the other substrate, an insulating film formed to cover the signal lines, and electrodes on the insulating film's upper surface. Each electrode contributes to controlling the optical transmissivity of the liquid crystal layer. Each spacer has a vertex surface disposed opposite to the signal lines. A portion of each electrode extends to the upper surface of a corresponding signal line. The extended portion is opposite to a part of a spacer's vertex surface disposed opposite to the corresponding signal line.Type: GrantFiled: January 16, 2015Date of Patent: August 4, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kazuhiko Yanagawa, Yasushi Iwakabe, Yoshiaki Nakayoshi, Masatoshi Wakagi
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Patent number: 9086600Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: GrantFiled: May 22, 2014Date of Patent: July 21, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
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Publication number: 20150177580Abstract: A liquid crystal display includes a first substrate and a second substrate opposed to each other with a liquid crystal layer between the first substrate and the second substrate. The first substrate has a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions are defined by the drain signal lines and the gate signal lines. Each of the pixel regions includes a first electrode having a plurality of strip-like portions extending in an extension direction of the drain signal lines, the strip-like portions having at least one bent portion so that extension directions of each two parts of the strip-like portions separated by the at least one bent portion are different from each other, and a second electrode formed between the first substrate and the first electrode, and being overlapped with the strip-like portions in plan view.Type: ApplicationFiled: March 6, 2015Publication date: June 25, 2015Inventors: Kikuo ONO, Makoto YONEYA, Tsunenori YAMAMOTO, Junichi HIRAKATA, Yoshiaki NAKAYOSHI
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Publication number: 20150131014Abstract: There is provided a liquid crystal display (LCD) device that prevents light leaks near spacers. The LCD device controls the optical transmissivity of a liquid crystal layer interposed between substrates disposed opposite each other, by means of an electric field generated in the layer-thickness direction of the liquid crystal layer. The LCD device includes spacers on a liquid-crystal-side surface of one substrate, signal lines formed on a liquid-crystal-side surface of the other substrate, an insulating film formed to cover the signal lines, and electrodes on the insulating film's upper surface. Each electrode contributes to controlling the optical transmissivity of the liquid crystal layer. Each spacer has a vertex surface disposed opposite to the signal lines. A portion of each electrode extends to the upper surface of a corresponding signal line. The extended portion is opposite to a part of a spacer's vertex surface disposed opposite to the corresponding signal line.Type: ApplicationFiled: January 16, 2015Publication date: May 14, 2015Inventors: Kazuhiko YANAGAWA, Yasushi IWAKABE, Yoshiaki NAKAYOSHI, Masatoshi WAKAGI
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Publication number: 20150077689Abstract: There is provided a liquid crystal display (LCD) device that prevents light leaks near spacers. The LCD device controls the optical transmissivity of a liquid crystal layer interposed between substrates disposed opposite each other, by means of an electric field generated in the layer-thickness direction of the liquid crystal layer. The LCD device includes spacers on a liquid-crystal-side surface of one substrate, signal lines formed on a liquid-crystal-side surface of the other substrate, an insulating film formed to cover the signal lines, and electrodes on the insulating film's upper surface. Each electrode contributes to controlling the optical transmissivity of the liquid crystal layer. Each spacer has a vertex surface disposed opposite to the signal lines. A portion of each electrode extends to the upper surface of a corresponding signal line. The extended portion is opposite to a part of a spacer's vertex surface disposed opposite to the corresponding signal line.Type: ApplicationFiled: October 10, 2014Publication date: March 19, 2015Inventors: Kazuhiko YANAGAWA, Yasushi IWAKABE, Yoshiaki NAKAYOSHI, Masatoshi WAKAGI
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Patent number: 8964155Abstract: A liquid crystal display includes first and second substrates with a liquid crystal layer therebetween, and a plurality of pixel regions defined by drain and gate signal lines of the substrate. The pixel region has a common electrode formed of a transparent conducting layer having a plurality of slits, a pixel electrode formed of a transparent conducting layer and having plane shape, and a first insulating layer interposed between the common electrode and the pixel electrode. The common electrode is arranged between the pixel electrode and the liquid crystal layer, and the pixel electrode is overlapped with a plurality of slits of the common electrode. A thin film transistor is connected to the drain signal line, and the pixel electrode is connected to a source electrode of the thin film transistor. The common electrode overlaps with a connection portion of the pixel and source electrodes on the first insulating layer.Type: GrantFiled: October 17, 2013Date of Patent: February 24, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Patent number: 8885137Abstract: There is provided a liquid crystal display (LCD) device that prevents light leaks near spacers. The LCD device controls the optical transmissivity of a liquid crystal layer interposed between substrates disposed opposite each other, by means of an electric field generated in the layer-thickness direction of the liquid crystal layer. The LCD device includes spacers on a liquid-crystal-side surface of one substrate, signal lines formed on a liquid-crystal-side surface of the other substrate, an insulating film formed to cover the signal lines, and electrodes on the insulating film's upper surface. Each electrode contributes to controlling the optical transmissivity of the liquid crystal layer. Each spacer has a vertex surface disposed opposite to the signal lines. A portion of each electrode extends to the upper surface of a corresponding signal line. The extended portion is opposite to a part of a spacer's vertex surface disposed opposite to the corresponding signal line.Type: GrantFiled: November 10, 2011Date of Patent: November 11, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kazuhiko Yanagawa, Yasushi Iwakabe, Yoshiaki Nakayoshi, Masatoshi Wakagi
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Publication number: 20140300851Abstract: A liquid crystal display includes a first substrate and a second substrate opposed to each other with a liquid crystal layer between the first substrate and the second substrate. The first substrate has a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions are defined by the drain signal lines and the gate signal lines. Each of the pixel regions includes a first electrode having a plurality of strip-like portions extending in an extension direction of the drain signal lines, the strip-like portions having at least one bent portion so that extension directions of each two parts of the strip-like portions separated by the at least one bent portion are different from each other, and a second electrode formed between the first substrate and the first electrode, and being overlapped with the strip-like portions in plan view.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori ` Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Publication number: 20140253852Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicants: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshiaki NAKAYOSHI, Kazuhiko YANAGAWA
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Patent number: 8760609Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: GrantFiled: June 26, 2013Date of Patent: June 24, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshiaki Nakayoshi, Kazuhiko Yanagawa
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Publication number: 20140043556Abstract: A liquid crystal display includes first and second substrates with a liquid crystal layer therebetween, and a plurality of pixel regions defined by drain and gate signal lines of the substrate. The pixel region has a common electrode formed of a transparent conducting layer having a plurality of slits, a pixel electrode formed of a transparent conducting layer and having plane shape, and a first insulating layer interposed between the common electrode and the pixel electrode. The common electrode is arranged between the pixel electrode and the liquid crystal layer, and the pixel electrode is overlapped with a plurality of slits of the common electrode. A thin film transistor is connected to the drain signal line, and the pixel electrode is connected to a source electrode of the thin film transistor. The common electrode overlaps with a connection portion of the pixel and source electrodes on the first insulating layer.Type: ApplicationFiled: October 17, 2013Publication date: February 13, 2014Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Patent number: 8648989Abstract: A liquid crystal display includes a first substrate, a second substrate, a liquid crystal disposed between the first substrate having drain lines and gate signal lines defining pixel regions and the second substrate. The pixel regions include a pixel electrode formed of a transparent conducting layer and having a plurality of slits, a common electrode formed of a transparent conducting layer, the common electrode being overlapped with the pixel electrode through an insulating layer, and the liquid crystal being driven by an electric field generated by the pixel electrode and the common electrode. A conductor layer is arranged proximate to the drain signal line. The conductor layer is placed at a position where at least a part thereof overlaps the common electrode, and the conductor layer is not connected to the drain signal line and the pixel electrode electrically.Type: GrantFiled: March 14, 2013Date of Patent: February 11, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Publication number: 20130286313Abstract: Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.Type: ApplicationFiled: June 26, 2013Publication date: October 31, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Yoshiaki NAKAYOSHI, Kazuhiko YANAGAWA
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Patent number: 8564752Abstract: A liquid crystal display includes a first substrate, a second substrate, and a liquid crystal disposed between the first substrate having first signal lines and second signal lines defining pixel regions and the second substrate. The pixel regions include a first transparent electrode, and a second transparent electrode which is overlapped with the first electrode through an insulating layer. The second transparent electrode is elongated so as to extend to plural pixel regions in overlapping relation with the first signal line which extends in plural pixel regions, and at least one strip-shaped opening portion is delimited between adjacent second transparent electrodes arranged in an extension direction of the first signal line, the at least one strip-shaped opening portion being formed in overlapping relation with the second signal line. A metal line is connected to the second transparent electrode, the metal line being elongated to extend to plural pixel regions.Type: GrantFiled: March 14, 2013Date of Patent: October 22, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Co., Ltd.Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Publication number: 20130208203Abstract: A liquid crystal display includes a first substrate, a second substrate, and a liquid crystal disposed between the first substrate having first signal lines and second signal lines defining pixel regions and the second substrate. The pixel regions include a first transparent electrode, and a second transparent electrode which is overlapped with the first electrode through an insulating layer. The second transparent electrode is elongated so as to extend to plural pixel regions in overlapping relation with the first signal line which extends in plural pixel regions, and at least one strip-shaped opening portion is delimited between adjacent second transparent electrodes arranged in an extension direction of the first signal line, the at least one strip-shaped opening portion being formed in overlapping relation with the second signal line. A metal line is connected to the second transparent electrode, the metal line being elongated to extend to plural pixel regions.Type: ApplicationFiled: March 14, 2013Publication date: August 15, 2013Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Publication number: 20130201419Abstract: A liquid crystal display includes a first substrate, a second substrate, a liquid crystal disposed between the first substrate having drain lines and gate signal lines defining pixel regions and the second substrate. The pixel regions include a pixel electrode formed of a transparent conducting layer and having a plurality of slits, a common electrode formed of a transparent conducting layer, the common electrode being overlapped with the pixel electrode through an insulating layer, and the liquid crystal being driven by an electric field generated by the pixel electrode and the common electrode. A conductor layer is arranged proximate to the drain signal line. The conductor layer is placed at a position where at least a part thereof overlaps the common electrode, and the conductor layer is not connected to the drain signal line and the pixel electrode electrically.Type: ApplicationFiled: March 14, 2013Publication date: August 8, 2013Inventors: Kikuo Ono, Makoto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi
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Patent number: 8493537Abstract: A liquid crystal display includes a first substrate and a second substrate opposed to each other with a liquid crystal layer therebetween, the first substrate having a plurality of drain signal lines and a plurality of gate signal lines, and a plurality of pixel regions defined by the drain signal lines and the gate signal lines. The pixel regions include a first electrode formed of a transparent conducting layer, the first electrode being overlapped with the drain signal line and formed on a plurality of the pixel regions, a second electrode formed of a transparent conducting layer, the second electrode being overlapped with the first electrode, a first insulating layer formed between the first electrode and the second electrode, and a second insulating layer formed between the drain signal line and the first electrode.Type: GrantFiled: July 6, 2012Date of Patent: July 23, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kikuo Ono, Makuto Yoneya, Tsunenori Yamamoto, Junichi Hirakata, Yoshiaki Nakayoshi