Patents by Inventor Masakatsu Kitani
Masakatsu Kitani 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: 20170285421Abstract: According to one embodiment, a liquid crystal display device includes a first scanning line, a third scanning line, a second scanning line, a first linear electrode, a second linear electrode and a third linear electrode. The first linear electrode is located between the first scanning line and the second scanning line, and extends in a third direction. The second linear electrode is located between the first scanning line and the second scanning line, and extends in a fourth direction. The third linear electrode is located between the second scanning line and the third scanning line, and comprises a portion extending in the fourth direction. The second linear electrode is electrically connected to the third linear electrode.Type: ApplicationFiled: March 31, 2017Publication date: October 5, 2017Applicant: Japan Display Inc.Inventors: Takeyuki TSURUMA, Masakatsu Kitani, Yoshihide Ohue
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Patent number: 9746729Abstract: According to one embodiment, there is a third column of third color (Blue) pixels and fourth (White) color pixels arranged alternately. The first set of a first (Red), a second (Green) and a third (Blue) color pixels along the first direction, and the second set of a first (Red), a second (Green) and a fourth (White) color pixels along the first direction are each defined as a composite color unit pixel. In the composite color unit pixels located at the first or second one along the first direction from composite color unit pixels to which color pixels of the third columns belongs, a connection pattern is designed that the pixels of the third columns are connected to the odd-numbered gate lines and the even-numbered gate lines, alternately, along the first direction.Type: GrantFiled: August 25, 2015Date of Patent: August 29, 2017Assignee: Japan Display Inc.Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
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Patent number: 9741296Abstract: According to one embodiment, three columns of a first and second columns of first and second color pixels, and a third column of third and fourth color pixels arranged alternately, are repeatedly provided along a first direction. The first set of a first, a second and a third color pixels along the first direction, and the second set of a first, a second and a fourth color pixels along the first direction are each defined as a composite color unit pixel. Pixel signals are supplied to the pixels of the third columns in a pattern that polarities of the pixel signals of the pixels of the third columns along the first direction are . . . , +, +, ?, ?, +, +, ?, ?, +, +, ?, ?, . . . .Type: GrantFiled: September 8, 2015Date of Patent: August 22, 2017Assignee: Japan Display Inc.Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
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Patent number: 9733529Abstract: In an array substrate, a first pixel is arranged at one end of an active area, and a second pixel is arranged adjacent to the first pixel more inside of the active area than the first pixel. A common electrode extends to the first and second pixels, and an insulating layer is formed on the common electrode. First and second pixel electrodes are formed on the insulating layer in the first and second pixels. The pixel electrodes include electrode portions forming slits facing the common electrode. A second substrate includes a shield layer arranged outside the active area. The first pixel electrode is formed more widely than the second pixel electrode, and extends to outside of the active area. The first pixel electrode includes an extending portion extending to outside of the active area and facing the shield layer.Type: GrantFiled: August 11, 2015Date of Patent: August 15, 2017Assignee: Japan Display Inc.Inventors: Naomi Moriyama, Masakatsu Kitani
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Publication number: 20170146846Abstract: A liquid crystal display device related to one embodiment includes a gate line arranged along a first direction, a first pixel including a first switching element connected to the gate line, and a first pixel electrode connected to the first switching element via a first contact hole arranged in an insulation layer, a second pixel including a second switching element connected to the gate line, and a second pixel electrode connected to the second switching element via a second contact hole arranged in the insulation layer, a first spacer arranged in the fixed pixel, and a second spacer arranged in the second pixel, wherein the first spacer and the second spacer are arranged substantially on the same straight line in the first direction, and the first contact hole and the second contact hole are alternately arranged sandwiching a straight line connecting the first spacer and the second spacer.Type: ApplicationFiled: October 17, 2016Publication date: May 25, 2017Inventors: Hirofumi FUNAKOSHI, Jin HIROSAWA, Masakatsu KITANI, Daichi HOSOKAWA
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Patent number: 9575383Abstract: A first semiconductor layer is formed in the shape of an island in an active area displaying images on an array substrate. A second semiconductor layer is formed in the shape of an island outside the active area. A first insulating film covers the first and second semiconductor layers. A gate line is formed on the first insulating film and extends in a first direction. The gate line includes a gate electrode crossing the first semiconductor layer and a crossing portion crossing the second semiconductor layer. A second insulating film covers the gate line. A source line is formed on the second insulating film and extends in a second direction. The source line includes a source electrode contacting with the first semiconductor layer. A drain electrode is formed on the second insulating film apart from the source line and contacting with the first semiconductor layer.Type: GrantFiled: May 16, 2016Date of Patent: February 21, 2017Assignee: Japan Display Inc.Inventors: Kazuhito Watanabe, Masakatsu Kitani
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Patent number: 9558697Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines. Into the plurality of signal lines, signals of different polarities are alternately input, respectively. In the respective regions surrounded by the scanning lines and the signal lines, a first pixel and a second pixel are arrayed. Along the scanning line, two each of the first pixels and the second pixels are provided, and the two first pixels or the two second pixels are arrayed so as to be juxtaposed to each other. Along the signal line, the first pixel and the second pixel are arrayed alternately.Type: GrantFiled: November 13, 2014Date of Patent: January 31, 2017Assignee: Japan Display Inc.Inventor: Masakatsu Kitani
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Patent number: 9530369Abstract: A liquid crystal display device using a pseudo-dot inversion driving system includes a pixel circuit arranged in a matrix shape in a row direction and a column direction. First and second gate lines extend in the row direction. First and second signal lines extend in the column direction. The pixel circuit includes a pixel electrode arranged between the first and second signal lines and electrically connected with the first signal line through a switching element. Parasitic capacitance formed between the pixel electrode and the first signal line is smaller than the parasitic capacitance between the pixel electrode and the second signal line.Type: GrantFiled: July 16, 2015Date of Patent: December 27, 2016Assignee: Japan Display Inc.Inventor: Masakatsu Kitani
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Publication number: 20160299399Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first common electrode and a second common electrode. The first substrate includes a conductive layer, a first switching element, a first signal line, a second signal line and a first pixel electrode. The first signal line forms a first electrostatic capacitive coupling with the conductive layer. The second signal line forms a second electrostatic capacitive coupling with the conductive layer. The first pixel electrode forms a third electrostatic capacitive coupling with the conductive layer. The first common electrode is opposed to the first signal line. The second common electrode is opposed to the second signal line.Type: ApplicationFiled: April 6, 2016Publication date: October 13, 2016Applicant: Japan Display Inc.Inventor: Masakatsu KITANI
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Patent number: 9459502Abstract: According to one embodiment, liquid crystal display device includes an array substrate, a counter substrate, and a liquid crystal layer. The array substrate includes a plurality of pixel electrodes, a plurality of gate lines, a plurality of source lines, a plurality of switching elements, and a plurality of light shielding layers. Each of the light shielding layers extends to cross, among the source lines, even-numbered source lines arranged in the direction of the extension of the gate lines.Type: GrantFiled: April 29, 2014Date of Patent: October 4, 2016Assignee: Japan Display Inc.Inventor: Masakatsu Kitani
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Publication number: 20160259221Abstract: A first semiconductor layer is formed in the shape of an island in an active area displaying images on an array substrate. A second semiconductor layer is formed in the shape of an island outside the active area. A first insulating film covers the first and second semiconductor layers. A gate line is formed on the first insulating film and extends in a first direction. The gate line includes a gate electrode crossing the first semiconductor layer and a crossing portion crossing the second semiconductor layer. A second insulating film covers the gate line. A source line is formed on the second insulating film and extends in a second direction. The source line includes a source electrode contacting with the first semiconductor layer. A drain electrode is formed on the second insulating film apart from the source line and contacting with the first semiconductor layer.Type: ApplicationFiled: May 16, 2016Publication date: September 8, 2016Applicant: Japan Display Inc.Inventors: Kazuhito WATANABE, Masakatsu KITANI
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Patent number: 9360720Abstract: A first semiconductor layer is formed in the shape of an island in an active area displaying images on an array substrate. A second semiconductor layer is formed in the shape of an island outside the active area. A first insulating film covers the first and second semiconductor layers. A gate line is formed on the first insulating film and extends in a first direction. The gate line includes a gate electrode crossing the first semiconductor layer and a crossing portion crossing the second semiconductor layer. A second insulating film covers the gate line. A source line is formed on the second insulating film and extends in a second direction. The source line includes a source electrode contacting with the first semiconductor layer. A drain electrode is formed on the second insulating film apart from the source line and contacting with the first semiconductor layer.Type: GrantFiled: July 5, 2013Date of Patent: June 7, 2016Assignee: Japan Display Inc.Inventors: Kazuhito Watanabe, Masakatsu Kitani
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Patent number: 9304343Abstract: A first substrate includes first and second gate lines extending in a first direction. First, second, and third source lines respectively extend in a second direction orthogonally crossing the first direction and crossing the first and second gate lines. A first pixel electrode is arranged adjoining the first source line and extends in the second direction. A second pixel electrode is arranged adjoining the third source line and extends in the second direction. A second substrate includes a common electrode arranged above the second source line extending in the second direction between the first source line and the third source line. The first and second source lines, the first and second gate lines, and the first pixel electrode form a first pixel, and the second and the third source lines, the first and second gate lines, and the second pixel electrode form a second pixel.Type: GrantFiled: May 9, 2013Date of Patent: April 5, 2016Assignee: JAPAN DISPLAY INC.Inventors: Masakatsu Kitani, Jin Hirosawa
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Publication number: 20160071471Abstract: According to one embodiment, three columns of a first and second columns of first and second color pixels, and a third column of third and fourth color pixels arranged alternately, are repeatedly provided along a first direction. The first set of a first, a second and a third color pixels along the first direction, and the second set of a first, a second and a fourth color pixels along the first direction are each defined as a composite color unit pixel. Pixel signals are supplied to the pixels of the third columns in a pattern that polarities of the pixel signals of the pixels of the third columns along the first direction are . . . , +, +, ?, ?, +, +, ?, ?, +, +, ?, ?, . . . .Type: ApplicationFiled: September 8, 2015Publication date: March 10, 2016Applicant: Japan Display Inc.Inventors: Hideyuki TAKAHASHI, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
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Publication number: 20160062196Abstract: According to one embodiment, there is a third column of third color (Blue) pixels and fourth (White) color pixels arranged alternately. The first set of a first (Red), a second (Green) and a third (Blue) color pixels along the first direction, and the second set of a first (Red), a second (Green) and a fourth (White) color pixels along the first direction are each defined as a composite color unit pixel. In the composite color unit pixels located at the first or second one along the first direction from composite color unit pixels to which color pixels of the third columns belongs, a connection pattern is designed that the pixels of the third columns are connected to the odd-numbered gate lines and the even-numbered gate lines, alternately, along the first direction.Type: ApplicationFiled: August 25, 2015Publication date: March 3, 2016Applicant: Japan Display Inc.Inventors: Hideyuki TAKAHASHI, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
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Patent number: 9217904Abstract: According to one embodiment, a liquid crystal display device includes, a first substrate including a switching element which is electrically connected to a gate line and a source line and includes a drain electrode opposed to a storage capacitance line, a pixel electrode which includes a main pixel electrode extending in a second direction and a sub-pixel electrode which extends in a first direction at a position inside a position above an edge of the drain electrode and is put in contact with the drain electrode, a second substrate including a common electrode, and a liquid crystal layer.Type: GrantFiled: May 30, 2013Date of Patent: December 22, 2015Assignee: Japan Display Inc.Inventors: Yusuke Morita, Jin Hirosawa, Hirokazu Morimoto, Masakatsu Kitani
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Publication number: 20150346562Abstract: In an array substrate, a first pixel is arranged at one end of an active area, and a second pixel is arranged adjacent to the first pixel more inside of the active area than the first pixel. A common electrode extends to the first and second pixels, and an insulating layer is formed on the common electrode. First and second pixel electrodes are formed on the insulating layer in the first and second pixels. The pixel electrodes include electrode portions forming slits facing the common electrode. A second substrate includes a shield layer arranged outside the active area. The first pixel electrode is formed more widely than the second pixel electrode, and extends to outside of the active area. The first pixel electrode includes an extending portion extending to outside of the active area and facing the shield layer.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Applicant: Japan Display Inc.Inventors: Naomi MORIYAMA, Masakatsu KITANI
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Publication number: 20150325189Abstract: A liquid crystal display device using a pseudo-dot inversion driving system includes a pixel circuit arranged in a matrix shape in a row direction and a column direction. First and second gate lines extend in the row direction. First and second signal lines extend in the column direction. The pixel circuit includes a pixel electrode arranged between the first and second signal lines and electrically connected with the first signal line through a switching element. Parasitic capacitance formed between the pixel electrode and the first signal line is smaller than the parasitic capacitance between the pixel electrode and the second signal line.Type: ApplicationFiled: July 16, 2015Publication date: November 12, 2015Applicant: JAPAN DISPLAY INC.Inventor: Masakatsu KITANI
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Patent number: 9140935Abstract: In an array substrate, a first pixel is arranged at one end of an active area, and a second pixel is arranged adjacent to the first pixel more inside of the active area than the first pixel. A common electrode extends to the first and second pixels, and an insulating layer is formed on the common electrode. First and second pixel electrodes are formed on the insulating layer in the first and second pixels. The pixel electrodes include electrode portions forming slits facing the common electrode. A second substrate includes a shield layer arranged outside the active area. The first pixel electrode is formed more widely than the second pixel electrode, and extends to outside of the active area. The first pixel electrode includes an extending portion extending to outside of the active area and facing the shield layer.Type: GrantFiled: August 5, 2013Date of Patent: September 22, 2015Assignee: Japan Display Inc.Inventors: Naomi Moriyama, Masakatsu Kitani
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Patent number: 9128311Abstract: A liquid crystal display device using a pseudo-dot inversion driving system includes a pixel circuit arranged in a matrix shape in a row direction and a column direction. First and second gate lines extend in the row direction. First and second signal lines extend in the column direction. The pixel circuit includes a pixel electrode arranged between the first and second signal lines and electrically connected with the first signal line through a switching element. Parasitic capacitance formed between the pixel electrode and the first signal line is smaller than the parasitic capacitance between the pixel electrode and the second signal line.Type: GrantFiled: September 30, 2013Date of Patent: September 8, 2015Assignee: Japan Display Inc.Inventor: Masakatsu Kitani