Patents by Inventor Yozo Narutaki
Yozo Narutaki 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: 6906765Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.Type: GrantFiled: July 15, 2003Date of Patent: June 14, 2005Assignee: Sharp Kabushiki KaishaInventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youji Yoshimura, Yutaka Ishii
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Patent number: 6894745Abstract: Each pixel region includes a transmission region for display in a transmission mode using light entering through a first substrate and a reflection region for display in a reflection mode using light entering through a second substrate. The first substrate includes a transparent electrode region and a reflection electrode region, both of which have flat surfaces facing a liquid crystal layer. The second substrate includes a transparent electrode in the reflection region and the transmission region on its surface facing the liquid crystal layer and includes a light diffusion layer in the reflection region, and the surface facing the liquid crystal layer is flat in the transmission region and the reflection region.Type: GrantFiled: January 16, 2001Date of Patent: May 17, 2005Assignee: Sharp Kabushiki KaishaInventors: Koichi Fujimori, Masumi Kubo, Yozo Narutaki
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Publication number: 20050083457Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.Type: ApplicationFiled: October 26, 2004Publication date: April 21, 2005Applicant: Sharp Kabushiki KaishaInventors: Kohichi Fujimori, Yozo Narutaki
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Patent number: 6864945Abstract: A liquid crystal display has spacers for maintaining a liquid crystal layer and a cell gap between a substrate and an opposite substrate and also has regions either within a single pixel or over two or more pixels. The spacers are of columnar shape elongated from the substrate to the opposite substrate or the other way round, and the columnar spacers are provided in regions in which the liquid crystal layer is thinnest among those regions in which the liquid crystal layer varies in thickness. The structure makes the liquid crystal display having two or more different cell gaps to stably maintain those cell gaps and produces good quality displays.Type: GrantFiled: August 20, 2001Date of Patent: March 8, 2005Assignee: Sharp Kabushiki KaishaInventors: Koichi Fujimori, Yozo Narutaki, Tokihiko Shinomiya
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Patent number: 6850298Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.Type: GrantFiled: October 1, 2002Date of Patent: February 1, 2005Assignee: Sharp Kabushiki KaishaInventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
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Patent number: 6850308Abstract: A liquid crystal display device includes a pair of opposite substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at the prescribed gap, and an outflow preventing portion having a plurality of concave portions is provided so that at least a part of the outflow preventing portion overlaps with the sealing material.Type: GrantFiled: April 18, 2002Date of Patent: February 1, 2005Assignee: Sharp Kabushiki KaishaInventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
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Publication number: 20050018118Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: August 20, 2004Publication date: January 27, 2005Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 6847426Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.Type: GrantFiled: October 2, 2002Date of Patent: January 25, 2005Assignee: Sharp Kabushiki KaishaInventors: Kohichi Fujimori, Yozo Narutaki
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Publication number: 20050012888Abstract: A liquid crystal display device includes a pair of opposed substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at a prescribed gap, and an outflow preventing portion is provided.Type: ApplicationFiled: August 11, 2004Publication date: January 20, 2005Inventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
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Publication number: 20040233357Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.Type: ApplicationFiled: June 25, 2004Publication date: November 25, 2004Applicant: Sharp Kabushiki KaishaInventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
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Patent number: 6819379Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: August 13, 2001Date of Patent: November 16, 2004Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Publication number: 20040169810Abstract: A liquid crystal display has spacers for maintaining a liquid crystal layer and a cell gap between a substrate and an opposite substrate and also has regions either within a single pixel or over two or more pixels. The spacers are of columnar shape elongated from the substrate to the opposite substrate or the other way round, and the columnar spacers are provided in regions in which the liquid crystal layer is thinnest among those regions in which the liquid crystal layer varies in thickness. The structure makes the liquid crystal display having two or more different cell gaps to stably maintain those cell gaps and produces good quality displays.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: Sharp Kabushiki KaishaInventors: Koichi Fujimori, Yozo Narutaki, Tokihiko Shinomiya
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Patent number: 6765641Abstract: A display device, with a pair of substrates provided so as to face each other with a display medium interposed therebetween, includes, on a first substrate of the pair of substrates: switching elements disposed in a matrix; scanning lines and signal lines disposed so as to cross each other; and an interlayer insulating film provided so as to have the switching elements, the scanning lines and the signal lines on one surface thereof and pixel electrodes on the other surface thereof. Each of the pixel electrodes is electrically connected to a drain electrode of one of the switching elements via a contact hole which penetrates through the interlayer insulating film. The interlayer insulating film is made of an organic thin film having a high transparency and covers at least the switching elements, the scanning lines and the signal lines.Type: GrantFiled: April 16, 1998Date of Patent: July 20, 2004Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Yuko Maruyama, Kazuhiro Maekawa, Takayuki Shimada, Mikio Katayama
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Publication number: 20040021807Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.Type: ApplicationFiled: July 15, 2003Publication date: February 5, 2004Applicant: Sharp Kabushiki KaishaInventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youjii Yoshimura, Yutaka Ishii
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Patent number: 6624860Abstract: A color filter layer includes a first region and a second region, wherein the number of times that light used for display is transmitted through the color filter layer is different between the first region and the second region.Type: GrantFiled: October 25, 2000Date of Patent: September 23, 2003Assignee: Sharp Kabushiki KaishaInventors: Yozo Narutaki, Masumi Kubo, Shogo Fujioka, Takayuki Shimada, Mikio Katayama, Youji Yoshimura, Yutaka Ishii
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Publication number: 20030117551Abstract: The liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer interposed between the first and second substrates, and a plurality of picture-element regions for providing display. Each of the plurality of picture-element regions has a transmission region for providing display in a transmission mode by using light incident through the first substrate, and a reflection region for providing display in a reflection mode by using light incident through the second substrate. The second substrate has a color filter layer provided in the transmission region and the reflection region. The thickness of the color filter layer in at least a part of the reflection region is smaller than the thickness of the color filter layer in the transmission region.Type: ApplicationFiled: October 2, 2002Publication date: June 26, 2003Inventors: Kohichi Fujimori, Yozo Narutaki
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Publication number: 20030063244Abstract: A liquid crystal display device of the present invention includes: a first substrate; a second substrate; a liquid crystal layer provided between the first substrate and the second substrate; and a plurality of picture element regions for displaying an image. Each of the plurality of picture element regions includes a transmission region in which an image is displayed in a transmission mode by using light that is coming from the side of the first substrate, and a reflection region in which an image is displayed in a reflection mode by using light that is coming from the side of the second substrate. The height of a surface of the second substrate on the side closer to the liquid crystal layer in the reflection region is greater than that in the transmission region, while the height of a surface of the first substrate on the side closer to the liquid crystal layer in the reflection region is substantially equal to that in the transmission region.Type: ApplicationFiled: October 1, 2002Publication date: April 3, 2003Applicant: SHARP KABUSHIKI KAISHAInventors: Kohichi Fujimori, Yozo Narutaki, Yasunobu Akebi, Ikuji Konishi
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Publication number: 20030052869Abstract: A display includes in each of display areas: a reflective area containing a non-light-emitting display element for effecting a display by means of a liquid crystal display element reflecting external light; and a light-emitting area containing a light-emitting display element for effecting a display by means of an organic EL element directly modulating external light, the reflective area and the light-emitting area being ordered in some manner. The display further includes a first substrate and a second substrate positioned opposite to each other, and the light-modulating element and the light-emitting element are both provided between the first substrate and the second substrate. Thus, a display and a method of manufacturing thereof can be offered which allows for reduction in size and cost and delivers excellent visibility from outdoors to indoors.Type: ApplicationFiled: September 5, 2002Publication date: March 20, 2003Applicant: SHARP KABUSHIKI KAISHAInventors: Aklyoshi Fujii, Akihito Jinda, Yozo Narutaki
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Publication number: 20020163615Abstract: A liquid crystal display device includes a pair of opposite substrates, and a liquid crystal layer as a display medium disposed between said substrates. The pair of substrates are adhered together by a resin sealing material disposed on the periphery portion of at least one of the substrates at the prescribed gap, and an outflow preventing portion having a plurality of concave portions is provided so that at least a part of the outflow preventing portion overlaps with the sealing material.Type: ApplicationFiled: April 18, 2002Publication date: November 7, 2002Applicant: Sharp Kabushiki KaishaInventors: Kazuyoshi Fujioka, Yozo Narutaki, Hisashi Nagata, Kazushige Miyamoto, Takayuki Shimada
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Patent number: 6452654Abstract: A liquid crystal display device according to the present invention includes a first substrate, a second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes: a plurality of gate lines; a plurality of source lines arranged to cross with the plurality of gate lines; a plurality of switching elements disposed in the vicinity of crossings of the plurality of gate lines and the plurality of source lines; and a plurality of pixel electrodes connected to the plurality of switching elements. The second substrate includes a counter electrode. A plurality of pixel regions are defined by the plurality of pixel electrodes, the counter electrode, and the liquid crystal layer interposed between the plurality of pixel electrodes and the counter electrode, and each of the plurality of pixel regions includes a reflection region and a transmission region.Type: GrantFiled: December 20, 2000Date of Patent: September 17, 2002Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Atsushi Ban, Takayuki Shimada, Yoji Yoshimura, Mikio Katayama, Yutaka Ishii, Hirohiko Nishiki