Patents by Inventor Kenichi Hyohdoh
Kenichi Hyohdoh 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: 10983398Abstract: A manufacturing method for a liquid crystal display apparatus according to an embodiment of the present invention includes a step (A) of preparing a first substrate including a pixel electrode and a first photoalignment film that has not been subjected to an alignment treatment, and a step (B) of exposing a region of the first photoalignment film which is to serve as a first alignment region through a plurality of first photomasks, while transporting the prepared first substrate in a predetermined transport direction, the plurality of first photomasks including two or more first photomasks arranged in a second direction intersecting the transport direction. Each first photomask includes a plurality of pairs of a light-transmitting portion and a light-blocking portion.Type: GrantFiled: January 19, 2018Date of Patent: April 20, 2021Assignee: SAKAI DISPLAY PRODUCTS CORPORATIONInventors: Naoto Ogawara, Kenichi Mukai, Mariko Nagai, Yoshitaka Okumoto, Akihiro Yamamoto, Kenichi Hyohdoh, Yasuhiro Azahara
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Publication number: 20200393716Abstract: A manufacturing method for a liquid crystal display apparatus according to an embodiment of the present invention includes a step (A) of preparing a first substrate including a pixel electrode and a first photoalignment film that has not been subjected to an alignment treatment, and a step (B) of exposing a region of the first photoalignment film which is to serve as a first alignment region through a plurality of first photomasks, while transporting the prepared first substrate in a predetermined transport direction, the plurality of first photomasks including two or more first photomasks arranged in a second direction intersecting the transport direction. Each first photomask includes a plurality of pairs of a light-transmitting portion and a light-blocking portion.Type: ApplicationFiled: January 19, 2018Publication date: December 17, 2020Applicant: SAKAI DISPLAY PRODUCTS CORPORATIONInventors: NAOTO OGAWARA, KENICHI MUKAI, MARIKO NAGAI, YOSHITAKA OKUMOTO, AKIHIRO YAMAMOTO, KENICHI HYOHDOH, YASUHIRO AZAHARA
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Patent number: 9046728Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the pixel areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: GrantFiled: October 26, 2010Date of Patent: June 2, 2015Assignee: Sharp Kabushiki KaishaInventors: Ikumi Itsumi, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Patent number: 9019186Abstract: A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.Type: GrantFiled: January 24, 2011Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Toshinori Sugihara, Toshihide Tsubata, Yuki Yamashita, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Kenichi Hyohdoh, Ikumi Itsumi, Akane Sugisaka, Masae Kitayama
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Patent number: 8885131Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: GrantFiled: January 27, 2011Date of Patent: November 11, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Patent number: 8749727Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: GrantFiled: November 5, 2010Date of Patent: June 10, 2014Assignee: Sharp Kabushiki KaishaInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20130027525Abstract: The liquid crystal display device (100) according to the present invention performs display in a stereoscopic display mode. In each of the plurality of pixels in the liquid crystal display device (100), left-eye image data and right-eye image data are alternately written every two successive vertical scanning periods. Each of the plurality of pixels exhibits the same polarity over the two vertical scanning periods in which left-eye image data is written, and exhibits the same polarity over the two vertical scanning periods in which the right-eye image data is written. Accordingly, the liquid crystal display device (100) performs stereoscopic display with suppressed display unevenness.Type: ApplicationFiled: April 7, 2011Publication date: January 31, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Masae Kitayama, Fumikazu Shimoshikiryoh, Atsushi Ban, Nobuyoshi Nagashima, Kazuyoshi Fujioka, Shinji Shinjo, Takayuki Nagaoka, Kenichi Hyohdoh
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Publication number: 20130002992Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1 and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1 through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: ApplicationFiled: January 27, 2011Publication date: January 3, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120326954Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the pixel areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: ApplicationFiled: October 26, 2010Publication date: December 27, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120320297Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: ApplicationFiled: November 5, 2010Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20120306732Abstract: A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.Type: ApplicationFiled: January 24, 2011Publication date: December 6, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Toshinori Sugihara, Toshihide Tsubata, Yuki Yamashita, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Kenichi Hyohdoh, Ikumi Itsumi, Akane Sugisaka, Masae Kitayama
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Publication number: 20120274889Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the picture element areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: ApplicationFiled: October 26, 2010Publication date: November 1, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Akane Sugisaka, Mitsuaki Hirata, Kenichi Hyohdoh, Masae Kitayama, Ikumi Itsumi, Yuki Yamashita, Fumikazu Shimoshikiryoh