Patents by Inventor Hitomi HASEGAWA
Hitomi HASEGAWA 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: 11877100Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: GrantFiled: December 14, 2022Date of Patent: January 16, 2024Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
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Patent number: 11675226Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: GrantFiled: April 13, 2022Date of Patent: June 13, 2023Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
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Publication number: 20230115561Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: ApplicationFiled: December 14, 2022Publication date: April 13, 2023Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
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Patent number: 11570408Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: GrantFiled: November 30, 2021Date of Patent: January 31, 2023Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
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Publication number: 20220299819Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.Type: ApplicationFiled: June 8, 2022Publication date: September 22, 2022Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA
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Publication number: 20220236607Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: ApplicationFiled: April 13, 2022Publication date: July 28, 2022Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
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Patent number: 11378835Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.Type: GrantFiled: August 23, 2019Date of Patent: July 5, 2022Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa
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Patent number: 11333916Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: GrantFiled: February 1, 2021Date of Patent: May 17, 2022Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
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Publication number: 20220094890Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: ApplicationFiled: November 30, 2021Publication date: March 24, 2022Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
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Patent number: 11218672Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: GrantFiled: November 18, 2020Date of Patent: January 4, 2022Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
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Publication number: 20210149240Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: ApplicationFiled: February 1, 2021Publication date: May 20, 2021Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
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Publication number: 20210076011Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: ApplicationFiled: November 18, 2020Publication date: March 11, 2021Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masaru NAKAKOMI
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Patent number: 10942384Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed in the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: GrantFiled: August 12, 2019Date of Patent: March 9, 2021Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masashi Shishikura
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Patent number: 10863151Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: GrantFiled: May 31, 2019Date of Patent: December 8, 2020Assignee: JAPAN DISPLAY INC.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
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Publication number: 20200064682Abstract: According to one embodiment, a display device includes a first area, a second area, a boundary including a linear first boundary parallel and a curved second boundary and surrounding the first area, and a light-shielding layer including a first light-shielding portion located in the second area. An end portion of the first light-shielding portion on the first area side includes a linear first end portion located on the first boundary, a curved second end portion located on the second boundary in a first round area, and a stepwise third end portion which extends such that the third end portion is bent in a second round area.Type: ApplicationFiled: August 23, 2019Publication date: February 27, 2020Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA
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Publication number: 20200064703Abstract: According to one embodiment, a display device includes a first substrate and a second substrate. The first substrate includes a first area including a display portion, a second area adjacent to the first area, and an organic film. The second substrate has a substrate end along a boundary between the first area and the second area, and overlaps the first area. The first substrate includes an alignment film located in the display portion, terminals located in the second area and connected to a signal source, and a first groove formed of the organic film and located between the substrate end of the second substrate and the terminals in the second area. The terminals are arranged in a first direction. The first groove extends in the first direction along the terminals.Type: ApplicationFiled: August 12, 2019Publication date: February 27, 2020Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Hitomi HASEGAWA, Masashi SHISHIKURA
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Publication number: 20190373226Abstract: According to one embodiment, a display device including a first substrate including an organic film, a first recess and a second recess formed in the organic film, and a first projection having the organic film, a second substrate, and a sealing member located in a second area around a first area, and bonding the first substrate and the second substrate together, wherein the first substrate includes a mounting portion, the first recess and the second recess extend in the second area, a first leading end portion of the first recess is separated from a second leading end portion of the second recess, and the first projection, the first recess and the second recess overlap the sealing member.Type: ApplicationFiled: May 31, 2019Publication date: December 5, 2019Applicant: Japan Display Inc.Inventors: Tomokazu Ishikawa, Hitomi Hasegawa, Masaru Nakakomi
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Patent number: 10209576Abstract: An object of this invention is to increase the number of liquid crystal display panels obtained from a mother substrate. There is provided a liquid crystal display device including a TFT substrate and a counter substrate bonded together by a seal portion formed along the periphery of the counter substrate, the TFT substrate having a terminal area formed in a portion thereof not opposed to the counter substrate. The TFT substrate has a bank-like organic passivation film formed along the edge of the terminal area. A stepped part is formed on the organic passivation film. The film thickness of the organic passivation film on the edge side of the stepped part is greater than the film thickness inside the stepped part.Type: GrantFiled: March 6, 2017Date of Patent: February 19, 2019Assignee: Japan Display Inc.Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Hitomi Hasegawa
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Publication number: 20170269404Abstract: An object of this invention is to increase the number of liquid crystal display panels obtained from a mother substrate. There is provided a liquid crystal display device including a TFT substrate and a counter substrate bonded together by a seal portion formed along the periphery of the counter substrate, the TFT substrate having a terminal area formed in a portion thereof not opposed to the counter substrate. The TFT substrate has a bank-like organic passivation film formed along the edge of the terminal area. A stepped part is formed on the organic passivation film. The film thickness of the organic passivation film on the edge side of the stepped part is greater than the film thickness inside the stepped part.Type: ApplicationFiled: March 6, 2017Publication date: September 21, 2017Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Hitomi HASEGAWA
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Patent number: 9341906Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a pixel electrode including a main pixel electrode extending in the second direction, and a first alignment film covering the pixel electrode. A second substrate includes a common electrode having a pair of main common electrodes arranged on both sides sandwiching the main pixel electrode and a second alignment film covering the common electrode. A liquid crystal layer is held between the first alignment film and the second alignment film and includes liquid crystal molecules. The liquid crystal layer is formed of materials having negative dielectric constant anisotropy, and the liquid crystal molecules are initially aligned substantially in parallel with the first direction when electric field is not impressed between the pixel electrode and the common electrode.Type: GrantFiled: July 16, 2015Date of Patent: May 17, 2016Assignee: Japan Display Inc.Inventors: Hitomi Hasegawa, Nobuko Fukuoka