Patents by Inventor Kikuo Ono
Kikuo Ono 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: 20150077393Abstract: An embedded touch screen, including: a first substrate including, on a front surface thereof, a plurality of detecting electrodes extending in a second direction; a second substrate having an image region in which a plurality of pixels are arranged in matrix, the second substrate including: a pixel electrode connected to corresponding one of the plurality of video signal lines via a switching element connected to corresponding one of the plurality of scanning signal lines in each of the plurality of pixels; and a common electrode; a liquid crystal layer sandwiched between the first substrate and the second substrate; an application circuit for applying an alternating signal to the pixel electrode; a detection circuit for detecting a signal excited on the corresponding one of the plurality of detecting electrodes; and a scanning circuit for scanning the pixel electrode in the second direction during detection by the detection circuit.Type: ApplicationFiled: November 19, 2014Publication date: March 19, 2015Inventors: Genshiro KAWACHI, Kazuo KITA, Kikuo ONO
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Publication number: 20150070619Abstract: A gate line (40) has a two-layered structure comprising a lower gate line (40a) made of material identical to a pixel electrode (70), and positioned in the same layer as the pixel electrode (70), and an upper gate line (40b) layered on the lower gate line (40b), and made of material having a higher electrical conductivity than the transparent conductive material. According to this structure, it is possible to reduce the number of times performing exposure processes in manufacturing an in-plane switching type liquid crystal panel.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Inventor: Kikuo ONO
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Publication number: 20150062451Abstract: A first insulating film is formed between a pixel electrode and a thin film transistor. The pixel electrode is connected to a conductive electrode of the thin film transistor via a contact hole formed in the first insulating film. The common electrode is formed so as to overlap a data signal line in plan view, and a metal wiring, which is electrically connected to the common electrode, is formed so as to overlap at least a part of the contact hole in plan view.Type: ApplicationFiled: March 6, 2014Publication date: March 5, 2015Applicant: Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo ONO
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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: 8957883Abstract: A display device includes a frame frequency conversion circuit configured to convert a frame frequency of an input display data and a timing control circuit configured to control a first drive circuit and a second drive circuit based on a frame frequency after the conversion. The display device generates at least two display areas on the display panel. The at least two display areas display images at different frame frequencies. The display device further includes a switch unit configured to display an image at the frame frequency before the conversion at one of the at least two display areas and configured to display an image at the frame frequency after the conversion at another one of the at least two display areas. At least one of a boundary position and a size of the at least two display areas varies with time.Type: GrantFiled: July 28, 2010Date of Patent: February 17, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Junichi Maruyama, Koji Hosogi, Goki Toshima, Misa Owa, Naruhiko Kasai, Kikuo Ono
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Patent number: 8917370Abstract: A gate line (40) has a two-layered structure comprising a lower gate line (40a) made of material identical to a pixel electrode (70), and positioned in the same layer as the pixel electrode (70), and an upper gate line (40b) layered on the lower gate line (40b), and made of material having a higher electrical conductivity than the transparent conductive material. According to this structure, it is possible to reduce the number of times performing exposure processes in manufacturing an in-plane switching type liquid crystal panel.Type: GrantFiled: November 29, 2011Date of Patent: December 23, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo Ono
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Publication number: 20140340616Abstract: A backlight includes light emitting diodes; a substrate on which light emitting diodes are mounted; and a reflection sheet. The surface on which the light emitting diodes are mounted of the substrate is opposed to a rear surface of the liquid crystal display panel. The liquid crystal display panel and the substrate each have a shape in which a common width in a first direction is longer than a width in a second direction, which is orthogonal to the first direction. The width of the substrate in the second direction is shorter than the width of the liquid crystal display panel in the second direction. The substrate is opposed to, while avoiding being opposed to both end portions of the liquid crystal display panel in the second direction, a central portion between the both end portions of the liquid crystal display panel.Type: ApplicationFiled: July 24, 2014Publication date: November 20, 2014Inventors: Sachiko Yamazaki, Ikuko Imajo, Masashi Baba, Kikuo Ono
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Publication number: 20140340622Abstract: Provided is a liquid crystal display device including: gate lines formed in a first direction on a second transparent substrate; data lines formed in a second direction; first transparent common electrodes; a protective insulating film; transparent pixel electrodes arranged in the first direction and the second direction and formed so as to be opposed to the first transparent common electrodes on a surface of the protective insulating film; thin film transistors connected to the transparent pixel electrodes; a second transparent common electrode formed on the surface of the protective insulating film; and a liquid crystal layer formed on the protective insulating film, the transparent pixel electrodes, and the second transparent common electrode. The second transparent common electrode covers the gate lines and the data lines through intermediation of the protective insulating film.Type: ApplicationFiled: March 5, 2014Publication date: November 20, 2014Applicant: Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo ONO
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Publication number: 20140306223Abstract: A display device includes a plurality of pixels arranged in a matrix. Each of the plurality of pixels includes a transistor and a pixel electrode arranged above the transistor through a first protective film and a second protective film. Among the plurality of pixels, the pixel electrodes of two pixels adjacent in a column direction are connected to corresponding source electrodes of the two pixels through second and third contact holes respectively. The second and third contact holes are formed in the first protective film within a first contact hole that is formed in the second protective film.Type: ApplicationFiled: March 5, 2014Publication date: October 16, 2014Applicant: Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo ONO
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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: 20140285478Abstract: Provided is a liquid crystal display device, including a first and second substrates, the second substrate including data signal lines, gate signal lines, pixel electrodes, a plurality of common electrodes that extend in one of a column direction and a row direction, and a plurality of shield electrodes overlapping at least one of the data signal lines or the gate signal lines, the plurality of common electrodes including a first common electrode to which a first voltage is supplied and a second common electrode to which a second voltage is supplied, the first common electrode and the second common electrode being alternately arranged in one of the row direction and the column direction, in which, in plan view, each of the plurality of shield electrodes is formed to overlap at least a gap formed between the first common electrode and the second common electrode that are adjacent to each other.Type: ApplicationFiled: March 6, 2014Publication date: September 25, 2014Applicant: Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo ONO
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Patent number: 8836907Abstract: A liquid crystal display device includes first and second substrates with a liquid crystal therebetween, a thin film transistor on the first substrate, a color filter layer of different colored layers between the liquid crystal and the thin film transistor, and an electrode structure layer between the liquid crystal and the color filter layer. The electrode structure layer includes a transparent insulating film, and first and second transparent conductive films formed on opposite sides of the transparent insulating film. The color filter layer includes a first region formed of one colored layer, and a second region formed of at least two laminated different colored layers. The first transparent conductive film covers an upper surface of the color filter layer in both of the first and second regions.Type: GrantFiled: March 15, 2013Date of Patent: September 16, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo Ono
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Patent number: 8804066Abstract: A backlight unit has a light source area. The width of the light source area in a first direction is shorter than the width of a liquid crystal panel in the first direction. A plurality of LED modules (31) are arranged along the second direction perpendicular to the first direction. End lenses (41A, 41B) and a middle lens (42) for enlarging a light divergence angle are disposed on the plurality of LED modules (31). The direction in which the end lens (41A, 41B) enlarges the light divergence angle differs from that in which the middle lens (42) enlarges the divergence angle. This structure can reduce difference in brightness of the liquid crystal panel, while reducing the number of light sources.Type: GrantFiled: October 18, 2011Date of Patent: August 12, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Ikuko Imajo, Sachiko Yamazaki, Kikuo Ono
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Patent number: 8804071Abstract: A light source section provided in a backlight unit has a smaller width in a direction perpendicular to a length direction of the light source section than a width in the same direction of the liquid crystal panel. A plurality of LED modules are arranged along the length direction of the light source section. The LED modules are respectively assigned to areas of the liquid crystal panel, which are extended in the width direction of the light source section. Lenses are respectively disposed over the LED modules and expand light toward the areas. A control device controls each of the plurality of light sources separately or each of groups into which the plurality of light sources are divided, separately. Accordingly, it is possible to improve a contrast of a display screen, while reducing the number of light sources.Type: GrantFiled: November 4, 2011Date of Patent: August 12, 2014Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kikuo Ono, Ikuko Imajo, Yoshinori Ohshima
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Publication number: 20140146263Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red, green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.Type: ApplicationFiled: January 30, 2014Publication date: May 29, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc.Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
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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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Patent number: 8614773Abstract: A liquid crystal display device having an active matrix display panel with pixel regions having two pixel electrodes and two TFT elements thereon. The two pixel electrodes are formed in each of the pixel regions, the two pixel electrodes are connected to different ones of the two TFT elements and one counter electrode is formed in each of the pixel regions, the counter electrode being formed between a layer of the pixel electrode and a first substrate. Each pixel electrode in the pixel regions has plural slits, the slits in each pixel electrode extending in two directions, and the slits extend in a direction which is not parallel to an extending direction of either of a video signal line or a scanning signal line formed on the first substrate. The two pixel electrodes in the pixel region have adjacent pixel electrode sides which are parallel to each other.Type: GrantFiled: March 2, 2012Date of Patent: December 24, 2013Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventor: Kikuo Ono
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Patent number: 8599119Abstract: A resistive element is connected in series to a cathode terminal of an LED light source at a last stage (or an anode terminal of an LED light source at a first stage) of an LED chain, and a resistance value of the resistive element is configured to be variable in resistance value in accordance with a variation of voltage drops of the LEDs connected in series so that a resistance value of a resistive element connected to an LED chain having a large voltage drop has a smaller resistance value then a resistance value of a resistive element connected to an LED chain having a small voltage drop. With this configuration, the power, which has been wasted otherwise as heat in the backlight driver IC, may be dispersed to the resistive elements.Type: GrantFiled: May 12, 2010Date of Patent: December 3, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Koji Hosogi, Junichi Maruyama, Misa Owa, Kikuo Ono, Goki Toshima, Masahiro Fukata
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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