Patents by Inventor Mutsumi Nakajima
Mutsumi Nakajima 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: 8860033Abstract: The active-matrix substrate (100) of the present invention satisfies d2>d1 and d2+A1/2>d3+L1/2, where d1 is the length of the shortest line segment that connects together a channel region (134) and a gettering region (112) as measured by projecting the line segment onto a line that connects together the channel region (134) of a TFT (130) and a source contact portion, d2 is the distance from the channel region (134) to the source contact portion (132c), d3 is the distance from the channel region (134) to a first end portion (110a), L1 is the length of the first end portion (110a), and A1 is the length of the source contact portion (132c).Type: GrantFiled: February 29, 2008Date of Patent: October 14, 2014Assignee: Sharp Kabushiki KaishaInventors: Makoto Kita, Mutsumi Nakajima, Yoshimizu Moriya, Yasuyoshi Kaise
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Publication number: 20130071792Abstract: An amount of exposure of the photosensitive resin is controlled using a photomask in an exposure treatment. The photosensitive resin subjected to the exposure treatment is developed, thereby simultaneously forming a protrusion which regulates the alignment of liquid crystal molecules comprising the liquid crystal layer, and a photo spacer.Type: ApplicationFiled: April 5, 2011Publication date: March 21, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Yasuyoshi Kaise, Mutsumi Nakajima, Keisuke Yoshida, Yasutoshi Tasaka, Keiichi Ina
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Patent number: 8390654Abstract: A repair step of repairing a pixel resulting in a defective bright spot so as to display the pixel in black is included. In the repair step, a drain portion of a TFT of the pixel resulting in the defective bright spot is shorted to a corresponding gate line, and in the pixel resulting in the defective bright spot, a semiconductor layer portion of the TFT is cut to allow electrical isolation between a corresponding source line and the corresponding gate line.Type: GrantFiled: March 28, 2008Date of Patent: March 5, 2013Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Yoshida, Mutsumi Nakajima
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Publication number: 20130021564Abstract: A pixel electrode (1) has a frame portion (6) along the entire inner circumference of a pixel (10). The frame portion (6) is provided with a plurality of fine electrodes (7a to 7d) each disposed to form an angle of 45 degrees to the polarization axis of a linear polarizing plate. The pixel electrode (1) has a slit (8) formed in a portion other than the frame portion (6) and the fine electrodes (7a to 7d), i.e., the center portion. When the pixel electrode (1) is applied with a voltage, liquid crystal molecules (4) are oriented in four different directions along the fine electrodes (7a to 7d). Furthermore, by the effects from the frame portion (6) along the entire inner circumference of the pixel (10), the liquid crystal molecules (4) are tilted from the center of the pixel electrode (1) toward the outer circumference of an opposite electrode.Type: ApplicationFiled: November 24, 2010Publication date: January 24, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Yasutoshi Tasaka, Keisuke Yoshida, Yuki Kawashima, Kaori Saitoh, Mutsumi Nakajima
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Patent number: 8330909Abstract: A liquid crystal display device (1) includes (i) an opening (22a) which is provided on a color filter (22) in a transmissive region and (ii) a light sensor (14) which is provided in the transmissive region for detecting an intensity of light which enters the liquid crystal display device (1), the light directly entering the light sensor (14) through the opening (22a). This makes it possible to provide (1) a liquid crystal display device in which each dot region includes a light detection element and which prevents a decrease in aperture ratio of a transmissive region and (ii) an electronic device.Type: GrantFiled: August 28, 2008Date of Patent: December 11, 2012Assignee: Sharp Kabushiki KaishaInventors: Keisuke Yoshida, Kazuhiro Maeda, Ryohji Yayotani, Mutsumi Nakajima
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Patent number: 8294867Abstract: At least one side of a sealing member is formed on an outer edge of a first substrate, and a common transfer terminal portion is formed along at least a part of the sealing member formed on the outer edge of the first substrate.Type: GrantFiled: April 4, 2008Date of Patent: October 23, 2012Assignee: Sharp Kabushiki KaishaInventors: Noriyuki Ohashi, Mutsumi Nakajima, Kenichi Ishiguro, Shohichi Andoh
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Patent number: 8289480Abstract: A liquid crystal display device comprises plural picture elements including a first picture element and a second picture element; plural switching elements; and plural scanning lines. The plural switching elements include a first switching element electrically connected to the first picture element and a second switching element electrically connected to the second picture element. The plural scanning lines include a first scanning line electrically connected to the first switching element and a second scanning line electrically connected to the second switching element. The second scanning line is located between at least part of the first picture element and the first scanning line. The first scanning line is located between at least part of the second picture element and the second scanning line.Type: GrantFiled: December 16, 2010Date of Patent: October 16, 2012Assignee: Sharp Kabushiki KaishaInventors: Tokio Taguchi, Kazuhiko Tsuda, Mutsumi Nakajima, Keisuke Yoshida, Junichi Yamada
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Patent number: 8253872Abstract: A shield electrode is provided in the vicinity of a pixel electrode and source bus lines. The shield electrode may be provided in the same layer as gate bus lines, or in the same layer as the source bus lines. The shield electrode may be surrounded by an insulating material, or may be connected to a line other than the source bus lines. By providing the shield electrode, it is possible to reduce a source-drain parasitic capacitance between a pixel electrode and a source bus line.Type: GrantFiled: January 26, 2005Date of Patent: August 28, 2012Assignee: Sharp Kabushiki KaishaInventors: Keiichi Ina, Ichiro Shiraki, Mutsumi Nakajima, Keisuke Yoshida, Shoichi Andou
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Patent number: 8212251Abstract: In an active-matrix substrate (100) according to the present invention, a semiconductor layer (110) has a first gettering region (112) adjacent to the source region (132) of a first thin-film transistor (130), a second gettering region (114) adjacent to the drain region (146) of a second thin-film transistor (140), and a third gettering region (116) adjacent to any of the source and drain regions located between the respective channel regions (134 and 144) of the first and second thin-film transistors (130 and 140) among the source and drain regions of the thin-film transistors included in the thin-film transistor element (120).Type: GrantFiled: February 29, 2008Date of Patent: July 3, 2012Assignee: Sharp Kabushiki KaishaInventors: Yoshimizu Moriya, Mutsumi Nakajima, Yasuyoshi Kaise, Makoto Kita, Hiroshi Matsukizono, Yoshiyuki Itoh
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Publication number: 20110205249Abstract: A repair step of repairing a pixel resulting in a defective bright spot so as to display the pixel in black is included. In the repair step, a drain portion of a TFT of the pixel resulting in the defective bright spot is shorted to a corresponding gate line, and in the pixel resulting in the defective bright spot, a semiconductor layer portion of the TFT is cut to allow electrical isolation between a corresponding source line and the corresponding gate line.Type: ApplicationFiled: March 28, 2008Publication date: August 25, 2011Inventors: Hiroshi Yoshida, Mutsumi Nakajima
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Patent number: 7999898Abstract: An active matrix liquid crystal display device is provided in which decrease in the aperture ratio is prevented, and deterioration in display quality is reduced by preventing liquid crystal molecules in a region of a pixel electrode which region faces a bus line from aligning in two or more directions. A liquid crystal panel in the active matrix liquid crystal display device includes a plurality of pixel electrodes (2) in array; and bus lines (42) arranged in a grid so as to surround each of the pixel electrodes (2), the pixel electrodes (2) each including a prominence (50) overlapping an adjacent one of the bus lines (42) in a top view, wherein the respective prominences (50) of each adjacent two of the pixel electrodes (2) facing each other across an adjacent one of the bus lines (42) overlap the bus line (42) at positions different from each other with respect to a direction in which the bus line (42) extends.Type: GrantFiled: April 24, 2007Date of Patent: August 16, 2011Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Yoshida, Yasutoshi Tasaka, Yoshimizu Moriya, Yasuyoshi Kaise, Mutsumi Nakajima
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Patent number: 7978295Abstract: A vertically aligned system liquid crystal display in which deterioration in display quality such as graininess, burn-in, afterimages due to disorder in orientation of liquid crystal molecules based on a connection electrodes for interconnecting sub-pixel electrodes can be prevented, and a method for manufacturing such liquid crystal display. In the liquid crystal display, each pixel electrode (2) of a liquid crystal panel is constituted by combining at least two sub-pixel electrodes (2a), and each sub-pixel electrode (2a) is connected through a bridge (3) narrower than the sub-pixel electrode (2a). A vertically aligned system in which liquid crystal molecules tilt symmetrically to the central axis of orientation in the direction perpendicular to the surface of each sub-pixel electrode (2a) upon application of a voltage is employed. The bridge (3) is provided at a position asymmetric to the sub-pixel electrode (2a).Type: GrantFiled: June 21, 2006Date of Patent: July 12, 2011Assignee: Sharp Kabushiki KaishaInventors: Yasutoshi Tasaka, Mutsumi Nakajima, Masayuki Inoue, Keisuke Yoshida, Hirofumi Katsuse
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Publication number: 20110085101Abstract: A liquid crystal display device comprises plural picture elements including a first picture element and a second picture element; plural switching elements; and plural scanning lines. The plural switching elements include a first switching element electrically connected to the first picture element and a second switching element electrically connected to the second picture element. The plural scanning lines include a first scanning line electrically connected to the first switching element and a second scanning line electrically connected to the second switching element. The second scanning line is located between at least part of the first picture element and the first scanning line. The first scanning line is located between at least part of the second picture element and the second scanning line.Type: ApplicationFiled: December 16, 2010Publication date: April 14, 2011Applicant: Sharp Kabushiki KaishaInventors: Tokio TAGUCHI, Kazuhiko Tsuda, Mutsumi Nakajima, Keisuke Yoshida, Junichi Yamada
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Patent number: 7880834Abstract: Realizes a structure for a transreflective liquid crystal display device in which one pixel is defined by four or more picture elements, the structure providing a high aperture ratio and being suitable for display for which the transmission mode is prioritized. A liquid crystal display device according to the present invention is a transreflective liquid crystal display device, comprising a plurality of picture elements including a first picture element, a second picture element, a third picture element and a fourth picture element for displaying different colors from one another; in which each of the plurality of picture elements includes a transmission area for providing display in a transmission mode and a reflection area for providing display in a reflection mode. Each picture element includes a mesh portion shaped to be meshable with an adjacent picture element; and the reflection area of each picture element is located in the mesh portion.Type: GrantFiled: February 19, 2007Date of Patent: February 1, 2011Assignee: Sharp Kabushiki KaishaInventors: Tokio Taguchi, Kazuhiko Tsuda, Mutsumi Nakajima, Keisuke Yoshida, Junichi Yamada
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Publication number: 20100195027Abstract: A liquid crystal display device (10) of the present invention comprises a liquid crystal panel in which a plurality of pixel electrodes (2) are arranged, wherein: shapes of the pixel electrodes (2) are asymmetric, and the pixel electrodes (2) are categorized into plural types whose shapes are different from each other (that is, pixel electrodes A and pixel electrodes B). The liquid crystal panel is configured so that the pixel electrodes of the plural types (that is, pixel electrodes A and pixel electrodes B) are arranged in a regular manner, and the pixel electrodes of the plural types are populated with equal ratios. Thus, in the liquid crystal display device comprising pixel electrodes having a horizontally asymmetric shape viewed from an observer of the liquid crystal panel, a manner in which pixel electrodes of respective types are arranged is changed, thereby improving display quality.Type: ApplicationFiled: April 8, 2008Publication date: August 5, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Hiroshi Yoshida, Yasuyoshi Kaise, Yasutoshi Tasaka, Mutsumi Nakajima
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Publication number: 20100171919Abstract: At least one side of a sealing member is formed on an outer edge of a first substrate, and a common transfer terminal portion is formed along at least a part of the sealing member formed on the outer edge of the first substrate.Type: ApplicationFiled: April 4, 2008Publication date: July 8, 2010Inventors: Noriyuki Ohashi, Mutsumi Nakajima, Kenichi Ishiguro, Shohichi Andoh
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Publication number: 20100165267Abstract: A liquid crystal display device (1) includes (i) an opening (22a) which is provided on a color filter (22) in a transmissive region and (ii) a light sensor (14) which is provided in the transmissive region for detecting an intensity of light which enters the liquid crystal display device (1), the light directly entering the light sensor (14) through the opening (22a). This makes it possible to provide (1) a liquid crystal display device in which each dot region includes a light detection element and which prevents a decrease in aperture ratio of a transmissive region and (ii) an electronic device.Type: ApplicationFiled: August 28, 2008Publication date: July 1, 2010Inventors: Keisuke Yoshida, Kazuhiro Maeda, Ryohji Yayotani, Mutsumi Nakajima
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Publication number: 20100118248Abstract: An active matrix liquid crystal display device is provided in which decrease in the aperture ratio is prevented, and deterioration in display quality is reduced by preventing liquid crystal molecules in a region of a pixel electrode which region faces a bus line from aligning in two or more directions. A liquid crystal panel in the active matrix liquid crystal display device includes a plurality of pixel electrodes (2) in array; and bus lines (42) arranged in a grid so as to surround each of the pixel electrodes (2), the pixel electrodes (2) each including a prominence (50) overlapping an adjacent one of the bus lines (42) in a top view, wherein the respective prominences (50) of each adjacent two of the pixel electrodes (2) facing each other across an adjacent one of the bus lines (42) overlap the bus line (42) at positions different from each other with respect to a direction in which the bus line (42) extends.Type: ApplicationFiled: April 24, 2007Publication date: May 13, 2010Inventors: Hiroshi Yoshida, Yasutoshi Tasaka, Yoshimizu Moriya, Yasuyoshi Kaise, Mutsumi Nakajima
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Publication number: 20100096639Abstract: The active-matrix substrate (100) of the present invention satisfies d2>d1 and d2+A1/2>d3+L1/2, where d1 is the length of the shortest line segment that connects together a channel region (134) and a gettering region (112) as measured by projecting the line segment onto a line that connects together the channel region (134) of a TFT (130) and a source contact portion, d2 is the distance from the channel region (134) to the source contact portion (132c), d3 is the distance from the channel region (134) to a first end portion (110a), L1 is the length of the first end portion (110a), and A1 is the length of the source contact portion (132c).Type: ApplicationFiled: February 29, 2008Publication date: April 22, 2010Inventors: Makoto Kita, Mutsumi Nakajima, Yoshimizu Moriya, Yasuyoshi Kaise
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Publication number: 20100044710Abstract: In an active-matrix substrate (100) according to the present invention, a semiconductor layer (110) has a first gettering region (112) adjacent to the source region (132) of a first thin-film transistor (130), a second gettering region (114) adjacent to the drain region (146) of a second thin-film transistor (140), and a third gettering region (116) adjacent to any of the source and drain regions located between the respective channel regions (134 and 144) of the first and second thin-film transistors (130 and 140) among the source and drain regions of the thin-film transistors included in the thin-film transistor element (120).Type: ApplicationFiled: February 29, 2008Publication date: February 25, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Yoshimizu Moriya, Mutsumi Nakajima, Yasuyoshi Kaise, Makoto Kita, Hiroshi Matsukizono, Yoshiyuki Itoh