Patents by Inventor Katsuhiko Matsunami
Katsuhiko Matsunami 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).
-
Patent number: 10295851Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: GrantFiled: January 9, 2018Date of Patent: May 21, 2019Assignee: EIZO CorporationInventors: Masaru Kubota, Kentaro Kojima, Katsuhiko Matsunami, Naoshi Isobe, Shosaku Ikeda, Kazuya Murata
-
Patent number: 10175513Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: GrantFiled: January 10, 2018Date of Patent: January 8, 2019Assignee: EIZO CorporationInventors: Masaru Kubota, Kentaro Kojima, Katsuhiko Matsunami, Naoshi Isobe, Shosaku Ikeda, Kazuya Murata
-
Patent number: 10175512Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: GrantFiled: January 10, 2018Date of Patent: January 8, 2019Assignee: EIZO CorporationInventors: Masaru Kubota, Kentaro Kojima, Katsuhiko Matsunami, Naoshi Isobe, Shosaku Ikeda, Kazuya Murata
-
Publication number: 20180180916Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: ApplicationFiled: January 9, 2018Publication date: June 28, 2018Applicant: EIZO CorporationInventors: Masaru KUBOTA, Kentaro KOJIMA, Katsuhiko MATSUNAMI, Naoshi ISOBE, Shosaku IKEDA, Kazuya MURATA
-
Publication number: 20180129088Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: ApplicationFiled: January 10, 2018Publication date: May 10, 2018Applicant: EIZO CorporationInventors: Masaru KUBOTA, Kentaro KOJIMA, Katsuhiko MATSUNAMI, Naoshi ISOBE, Shosaku IKEDA, Kazuya MURATA
-
Publication number: 20180129089Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: ApplicationFiled: January 10, 2018Publication date: May 10, 2018Applicant: EIZO CorporationInventors: Masaru KUBOTA, Kentaro KOJIMA, Katsuhiko MATSUNAMI, Naoshi ISOBE, Shosaku IKEDA, Kazuya MURATA
-
Patent number: 9897834Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: GrantFiled: June 5, 2017Date of Patent: February 20, 2018Assignee: EIZO CorporationInventors: Masaru Kubota, Kentaro Kojima, Katsuhiko Matsunami, Naoshi Isobe, Shosaku Ikeda, Kazuya Murata
-
Patent number: 9864220Abstract: Provided is an optical sensor mounting structure for use in image display device devices that can accurately measure the amount of light from a backlight by measuring leak LED light, without having to modify an image display panel module itself. In an image display device using an image display panel module in which a wire drawing port for drawing a wire from a backlight is formed in a panel sheet metal, an optical sensor mounting structure includes an optical sensor configured to measure leak light from the backlight and a positioning member (intermediate connector) positioning the optical sensor. The optical sensor is disposed near the wire drawing port and measures the leak LED light from the wire drawing port.Type: GrantFiled: May 20, 2014Date of Patent: January 9, 2018Assignee: EIZO CorporationInventors: Kentaro Kojima, Shosaku Ikeda, Naoshi Isobe, Katsuhiko Matsunami
-
Publication number: 20170269415Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device includes an optical sensor that measures light from the back surface of a reflection sheet, a substrate having the optical sensor thereon, and a tubular cushion for preventing the entry of external light into the optical sensor. The front surface of the tubular cushion is bonded to the reflection sheet, and the back surface thereof is bonded to the substrate.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Applicant: EIZO CorporationInventors: Masaru KUBOTA, Kentaro KOJIMA, Katsuhiko MATSUNAMI, Naoshi ISOBE, Shosaku IKEDA, Kazuya MURATA
-
Publication number: 20160116778Abstract: Provided is an optical sensor mounting structure for use in image display device devices that can accurately measure the amount of light from a backlight by measuring leak LED light, without having to modify an image display panel module itself. In an image display device using an image display panel module in which a wire drawing port for drawing a wire from a backlight is formed in a panel sheet metal, an optical sensor mounting structure includes an optical sensor configured to measure leak light from the backlight and a positioning member (intermediate connector) positioning the optical sensor. The optical sensor is disposed near the wire drawing port and measures the leak LED light from the wire drawing port.Type: ApplicationFiled: May 20, 2014Publication date: April 28, 2016Applicant: EIZO CorporationInventors: Kentaro KOJIMA, Shosaku IKEDA, Naoshi ISOBE, Katsuhiko MATSUNAMI
-
Publication number: 20160116777Abstract: Provided is an optical sensor mounting structure which is used in an image display device and in which the gap between a reflection sheet and a tubular cushion for preventing the entry of external light into an optical sensor is eliminated so that the amount of light from a backlight can be measured accurately. A liquid crystal image display device 1 includes an optical sensor 12 that measures light from the back surface of a reflection sheet 104, a substrate 11 having the optical sensor 12 thereon, and a tubular cushion 13 for preventing the entry of external light into the optical sensor 12. The front surface of the tubular cushion 13 is bonded to the reflection sheet 104, and the back surface thereof is bonded to the substrate 11.Type: ApplicationFiled: August 29, 2013Publication date: April 28, 2016Inventors: Masaru KUBOTA, Kentaro KOJIMA, Katsuhiko MATSUNAMI, Naoshi ISOBE, Shosaku IKEDA, Kazuya MURATA
-
Patent number: 9001194Abstract: A luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a first luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b, and the luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a second luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b. As a result, an image of the first image display portion 3, which is reflected by a semi-transparent mirror, and an image of the second image display portion, which is allowed to transmit through the semi-transparent mirror, are corrected in order to cancel a luminance difference according to an optical characteristic of the semi-transparent mirror.Type: GrantFiled: March 5, 2010Date of Patent: April 7, 2015Assignee: Eizo CorporationInventors: Tomohiko Yabui, Hideki Kitayama, Akinori Hayashi, Katsuhiko Matsunami, Naoshi Isobe
-
Publication number: 20120050505Abstract: A luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a first luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b, and the luminance correction computation unit 23 corrects a luminance input signal LI, which is inputted into a second luminance adjustment portion 13, to LO based on the semi-transparent mirror luminance correction coefficient b. As a result, an image of the first image display portion 3, which is reflected by a semi-transparent mirror, and an image of the second image display portion, which is allowed to transmit through the semi-transparent mirror, are corrected in order to cancel a luminance difference according to an optical characteristic of the semi-transparent mirror. As a result, it is possible to suppress the luminance difference of the stereo image. Therefore, it is possible to suppress uncomfortable feeling of the stereo image caused by the semi-transparent mirror.Type: ApplicationFiled: March 5, 2010Publication date: March 1, 2012Inventors: Tomohiko Yabui, Hideki Kitayama, Akinori Hayashi, Katsuhiko Matsunami, Naoshi Isobe