Patents by Inventor Masateru Morimoto
Masateru Morimoto 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: 20240069372Abstract: According to one embodiment, a liquid crystal display device with an optical sensor includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes first to third signal lines, an optical sensor including a photoelectric conversion element, first to third power feeding lines supplying first to third voltages to operate the optical sensor, and a sensor signal line outputting the detection signal. The first to third power feeding lines are located between the first to third signal lines and the sensor signal line in a thickness direction.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Applicant: Japan Display Inc.Inventors: Hiroyuki ABE, Akihiko SAITOH, Masateru MORIMOTO
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Patent number: 11892733Abstract: Purpose is to realize a display device of high definition and high response speed. The structure is as follows. A liquid crystal display device including: scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, and a pixel being surrounded by the scanning lines and the video signal lines, in which a pixel electrode is formed in the pixel, the pixel electrode includes a first portion including comb electrode, a second portion including contact portion to receive electrical signal, and a third portion, the third portion protrudes toward an adjacent pixel electrode compared with the first portion and the second portion, and a normal of a side toward the adjacent pixel electrode of the third portion intersects with the first direction and the second direction with an angle other than 0 and 90 degrees.Type: GrantFiled: February 23, 2023Date of Patent: February 6, 2024Assignee: JAPAN DISPLAY INC.Inventors: Masateru Morimoto, Satoru Kawasaki
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Publication number: 20230408871Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.Type: ApplicationFiled: August 15, 2023Publication date: December 21, 2023Inventors: Masateru MORIMOTO, Saori SUGIYAMA, Motoharu MIYAMOTO
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Publication number: 20230350254Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode spaced apart from the first common electrode, a first signal line overlapping the first common electrode and the second common electrode, a first metal line overlapping the first signal line and the first common electrode, and a second metal line overlapping the first signal line and the second common electrode and spaced apart from the first metal line. The first metal line includes an extension portion extending between the first common electrode and the second common electrode.Type: ApplicationFiled: July 11, 2023Publication date: November 2, 2023Inventor: Masateru MORIMOTO
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Publication number: 20230341964Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.Type: ApplicationFiled: June 28, 2023Publication date: October 26, 2023Applicant: Japan Display Inc.Inventors: Hiroyuki ABE, Yoshinori AOKI, Kazune MATSUMURA, Masateru MORIMOTO
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Publication number: 20230305344Abstract: Purpose is to realize a display device of high definition and high response speed. The structure is as follows. A liquid crystal display device including: scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, and a pixel being surrounded by the scanning lines and the video signal lines, in which a pixel electrode is formed in the pixel, the pixel electrode includes a first portion including comb electrode, a second portion including contact portion to receive electrical signal, and a third portion, the third portion protrudes toward an adjacent pixel electrode compared with the first portion and the second portion, and a normal of a side toward the adjacent pixel electrode of the third portion intersects with the first direction and the second direction with an angle other than 0 and 90 degrees.Type: ApplicationFiled: February 23, 2023Publication date: September 28, 2023Applicant: Japan Display Inc.Inventors: Masateru MORIMOTO, Satoru KAWASAKI
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Patent number: 11762244Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.Type: GrantFiled: January 3, 2023Date of Patent: September 19, 2023Assignee: Japan Display IncInventors: Masateru Morimoto, Saori Sugiyama, Motoharu Miyamoto
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Patent number: 11740721Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.Type: GrantFiled: December 13, 2022Date of Patent: August 29, 2023Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Yoshinori Aoki, Kazune Matsumura, Masateru Morimoto
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Patent number: 11740521Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode spaced apart from the first common electrode, a first signal line overlapping the first common electrode and the second common electrode, a first metal line overlapping the first signal line and the first common electrode, and a second metal line overlapping the first signal line and the second common electrode and spaced apart from the first metal line. The first metal line includes an extension portion extending between the first common electrode and the second common electrode.Type: GrantFiled: February 11, 2022Date of Patent: August 29, 2023Assignee: Japan Display Inc.Inventor: Masateru Morimoto
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Patent number: 11709402Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer and an illumination device. The first substrate includes a base, a sensor, a sensor circuit and a sensor light-shielding layer. The sensor is located between the base and the liquid crystal layer in a display area that includes pixels, and outputs a detection signal corresponding to light becoming incident from a side of the liquid crystal layer. The sensor circuit includes a switching element and is connected to the sensor. The sensor light-shielding layer is opposed to a channel area formed in a semiconductor layer included in the switching element, and blocks light from the illumination device on the channel area.Type: GrantFiled: August 9, 2022Date of Patent: July 25, 2023Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Akihiko Saitoh, Masateru Morimoto
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Patent number: 11709391Abstract: According to one embodiment, a display device includes a first substrate, a second substrate facing the first substrate and a liquid crystal layer. The first substrate includes a base material, and a sensor which outputs a detection signal based on incident light from a liquid crystal layer side. The sensor includes a photoelectric conversion element including a first surface and a second surface, a first electrode which is in contact with the first surface, and a second electrode which is in contact with the second surface. Each of the photoelectric conversion element and the second electrode is formed in an irregular shape having a plurality of curved portions and a plurality of straight portions connecting the curved portions as seen in plan view.Type: GrantFiled: June 28, 2022Date of Patent: July 25, 2023Assignee: Japan Display Inc.Inventors: Akihiko Saitoh, Masateru Morimoto, Hiroyuki Abe
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Patent number: 11703704Abstract: In a plan view, a spacer member is arranged at a position overlapping with a first line portion of a second pixel electrode. The second pixel electrode has a second connecting portion that connects the first line portion and the second line portion arranged next to the first line portion. The second connecting portion of the pixel electrode is arranged between a region where the first line portion of the second pixel electrode overlaps with the spacer member and one end portion of the first line portion of the second pixel electrode.Type: GrantFiled: July 13, 2022Date of Patent: July 18, 2023Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Masateru Morimoto, Masaru Nakakomi
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Publication number: 20230144061Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.Type: ApplicationFiled: January 3, 2023Publication date: May 11, 2023Inventors: Masateru MORIMOTO, Saori SUGIYAMA, Motoharu MIYAMOTO
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Publication number: 20230116695Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.Type: ApplicationFiled: December 13, 2022Publication date: April 13, 2023Applicant: Japan Display Inc.Inventors: Hiroyuki ABE, Yoshinori AOKI, Kazune MATSUMURA, Masateru MORIMOTO
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Publication number: 20230051710Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer and an illumination device. The first substrate includes a base, a sensor, a sensor circuit and a sensor light-shielding layer. The sensor is located between the base and the liquid crystal layer in a display area that includes pixels, and outputs a detection signal corresponding to light becoming incident from a side of the liquid crystal layer. The sensor circuit includes a switching element and is connected to the sensor. The sensor light-shielding layer is opposed to a channel area formed in a semiconductor layer included in the switching element, and blocks light from the illumination device on the channel area.Type: ApplicationFiled: August 9, 2022Publication date: February 16, 2023Inventors: Hiroyuki ABE, Akihiko SAITOH, Masateru MORIMOTO
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Patent number: 11579480Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a base, a sensor and a sensor circuit. The sensor is interposed between the base and the liquid crystal layer in a display area including pixels. The sensor outputs a sensing signal corresponding to light incident from alongside the liquid crystal layer. The sensor circuit includes a plurality of switching elements. The pixels include first to third sub-pixels. At least some of elements of the switching elements are arranged in each of areas where the first to third sub-pixels are arranged. A signal line for the sensor, which outputs the sensing signal, is placed on a same layer as a feeding line connected to the sensor.Type: GrantFiled: March 18, 2022Date of Patent: February 14, 2023Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Masateru Morimoto, Akihiko Saitoh
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Patent number: 11567374Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.Type: GrantFiled: January 20, 2022Date of Patent: January 31, 2023Assignee: Japan Display Inc.Inventors: Masateru Morimoto, Saori Sugiyama, Motoharu Miyamoto
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Publication number: 20230019616Abstract: In a plan view, a spacer member is arranged at a position overlapping with a first line portion of a second pixel electrode. The second pixel electrode has a second connecting portion that connects the first line portion and the second line portion arranged next to the first line portion. The second connecting portion of the pixel electrode is arranged between a region where the first line portion of the second pixel electrode overlaps with the spacer member and one end portion of the first line portion of the second pixel electrode.Type: ApplicationFiled: July 13, 2022Publication date: January 19, 2023Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Masateru MORIMOTO, Masaru NAKAKOMI
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Patent number: 11556199Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.Type: GrantFiled: May 9, 2022Date of Patent: January 17, 2023Assignee: Japan Display Inc.Inventors: Hiroyuki Abe, Yoshinori Aoki, Kazune Matsumura, Masateru Morimoto
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Patent number: 11556026Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a base material, a sensor including a photoelectric conversion element outputting a detection signal based on incident light from a liquid crystal layer side, and a first line electrically connected to the sensor. The pixel includes a first subpixel, a second subpixel and a third subpixel. The photoelectric conversion element is provided in an area in which the third subpixel is located. The first line includes a first branch portion overlapping the photoelectric conversion element and including an opening, and a second branch portion overlapping a through-hole provided such that the first line is electrically connected to the sensor.Type: GrantFiled: June 7, 2022Date of Patent: January 17, 2023Assignee: Japan Display Inc.Inventors: Akihiko Saitoh, Hiroyuki Abe, Masateru Morimoto