Patents by Inventor Emi Higano
Emi Higano 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: 20180284523Abstract: According to one embodiment, a display device comprises first and second flexible substrates, a liquid crystal layer, first and second spacers. The first flexible substrate includes first and second surfaces. The second flexible substrate includes a third surface opposite to the first surface and a fourth surface opposite to the third surface. The liquid crystal layer is disposed between first and third surfaces. The first spacer is disposed on the first surface. The second spacer is disposed on the third surface. One of the first and second spacers has a concave and the other of the first and second spacers has a convex. The tip of the convex contacts the concave.Type: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Applicant: Japan Display Inc.Inventors: Emi HIGANO, Toshiyuki Higano, Shigesumi Araki
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Publication number: 20180138257Abstract: According to one embodiment, a display device includes a first insulating substrate, an emitting layer, a protective film, a resin base, a first adhesive layer, and a second adhesive layer. The first insulating substrate includes a display area and a drive area. The emitting layer is in the display area. The protective film covers the emitting layer. The resin base is at a position upper than the protective film. The first adhesive layer is under the resin base, in the display area and the drive area. The second adhesive layer is on the resin base. The second adhesive layer covers the drive area and an end portion of the resin base. The resin base is located between the first adhesive layer and the second adhesive layer in the drive area.Type: ApplicationFiled: November 13, 2017Publication date: May 17, 2018Applicant: Japan Display Inc.Inventors: Toshiyuki HIGANO, Emi HIGANO
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Publication number: 20180130971Abstract: The purpose of the present invention is to realize the organic EL display device that has a high quality images even the polarizing plate is eliminated. The structure of the invention is as follows. An organic EL display device comprising: a display area, an organic EL element, which an organic EL layer is formed between a lower electrode and an upper electrode, the organic EL layer emits a different color of light according to a pixel, wherein a color filter of a same color as a color of light emitted from the organic EL layer is formed at a nearer side to the screen of the organic EL layer.Type: ApplicationFiled: November 6, 2017Publication date: May 10, 2018Inventors: Genki ASOZU, Emi HIGANO
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Patent number: 9829753Abstract: A display device includes a first light shielding area where two signal lines are arranged between the opening portions of mutually adjacent sub pixels, a second light shielding area where one signal line is arranged between the opening portions of mutually adjacent sub pixels, and a third light shielding area where one scanning line is arranged between the opening portions of mutually adjacent sub pixels. The display device further includes a first spacer arranged in the first light shielding area or the second light shielding area along the extending direction of the signal line and a second spacer arranged in the third light shielding area along the extending direction of the scanning line. The first spacer and the second spacer are arranged crosswise.Type: GrantFiled: March 15, 2016Date of Patent: November 28, 2017Assignee: Japan Display Inc.Inventors: Shigesumi Araki, Toshiyuki Higano, Emi Higano
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Patent number: 9772528Abstract: A display device includes a first pixel formed by a red sub pixel, a green sub pixel, and a white sub pixel and a second pixel formed by a red sub pixel, a green sub pixel, and a blue sub pixel. The red sub pixel and the green sub pixel are arranged in a second direction. The white sub pixel is arranged adjacently to the red sub pixel and the green sub pixel in a first direction. The blue sub pixel is adjacently to the red sub pixel and the green sub pixel in the first direction. A light shielding wiring layer extending in the first direction is arranged between the red sub pixel and the green sub pixel of each of the first pixel and the second pixel.Type: GrantFiled: October 26, 2015Date of Patent: September 26, 2017Assignee: Japan Display Inc.Inventors: Toshiyuki Higano, Emi Higano
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Publication number: 20170176802Abstract: According to one embodiment, a liquid crystal display device includes an array substrate, a counter substrate, an adhesive layer, a liquid crystal layer, a frame portion, and first and second barrier members. The first barrier member includes a first wall portion having a frame shape and provided on a surface of the array substrate opposing the counter substrate, and first pillar portions arranged spaced apart from each other and each having opposite end faces abutting against the first wall portion and the counter substrate. The second barrier member includes a second wall portion having a frame shape and provided on a surface of the counter substrate opposing the array substrate, and second pillar portions arranged spaced apart from each other and each having opposite end faces abutting against the second wall portion and the array substrate.Type: ApplicationFiled: December 22, 2016Publication date: June 22, 2017Applicant: Japan Display Inc.Inventors: Emi HIGANO, Toshiyuki HIGANO
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Publication number: 20170003528Abstract: According to one embodiment, a liquid crystal display device includes a display device with a first main surface and a second main surface which is opposite to the first main surface, a first member disposed in the first main surface side of the display panel, a second member disposed between the first member and the display panel, and a cover member disposed in the second main surface side of the display panel, and having a rigidity greater than that of the display panel. The coefficient of thermal expansion of the second member is greater than that of the first member.Type: ApplicationFiled: June 13, 2016Publication date: January 5, 2017Applicant: Japan Display Inc.Inventors: Emi HIGANO, Toshiyuki HIGANO, Shigesumi ARAKI
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Publication number: 20160274403Abstract: A display device includes a first light shielding area where two signal lines are arranged between the opening portions of mutually adjacent sub pixels, a second light shielding area where one signal line is arranged between the opening portions of mutually adjacent sub pixels, and a third light shielding area where one scanning line is arranged between the opening portions of mutually adjacent sub pixels. The display device further includes a first spacer arranged in the first light shielding area or the second light shielding area along the extending direction of the signal line and a second spacer arranged in the third light shielding area along the extending direction of the scanning line. The first spacer and the second spacer are arranged crosswise.Type: ApplicationFiled: March 15, 2016Publication date: September 22, 2016Inventors: Shigesumi ARAKI, Toshiyuki HIGANO, Emi HIGANO
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Publication number: 20160225331Abstract: A display device includes: a first scanning line and a second scanning line which are provided along a first direction; a first signal line and a second signal line which are provided along a second direction; and a first subpixel and a second subpixel. Each of the first subpixel and the second subpixel is disposed between the first scanning line and the second scanning line and between the first signal line and the second signal line, and is provided with an electrode having a first main electrode portion and a first electrode portion connected with a first end of the first main electrode portion. The first electrode portion of the first subpixel and the first electrode portion of the second subpixel are provided at an interval along a direction free from being parallel to each of the first direction and the second direction.Type: ApplicationFiled: January 12, 2016Publication date: August 4, 2016Applicant: Japan Display Inc.Inventors: Emi HIGANO, Toshiyuki HIGANO, Shigesumi ARAKI
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Publication number: 20160116808Abstract: A display device includes a first pixel formed by a red sub pixel, a green sub pixel, and a white sub pixel and a second pixel formed by a red sub pixel, a green sub pixel, and a blue sub pixel. The red sub pixel and the green sub pixel are arranged in a second direction. The white sub pixel is arranged adjacently to the red sub pixel and the green sub pixel in a first direction. The blue sub pixel is adjacently to the red sub pixel and the green sub pixel in the first direction. A light shielding wiring layer extending in the first direction is arranged between the red sub pixel and the green sub pixel of each of the first pixel and the second pixel.Type: ApplicationFiled: October 26, 2015Publication date: April 28, 2016Inventors: Toshiyuki HIGANO, Emi HIGANO
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Publication number: 20160097946Abstract: There is provided a liquid crystal display device that a high quality image with suppressed display unevenness can be obtained. A liquid crystal display device includes a first metal electrode, a black matrix disposed at regular spacings, and a liquid crystal. The first metal electrode is disposed to overlap the black matrix when seen perpendicularly from above, and a second metal electrode is disposed at a place at which the first metal is not disposed at a position at which the second metal electrode overlaps the black matrix between different color sub pixels.Type: ApplicationFiled: October 1, 2015Publication date: April 7, 2016Inventors: Toshiyuki HIGANO, Emi HIGANO
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Publication number: 20150160516Abstract: A liquid crystal display device includes a TFT substrate, a counter substrate, a liquid crystal layer, a first alignment film arranged between the TFT substrate and the liquid crystal layer, and a second alignment film arranged between the counter substrate and the liquid crystal layer. The first alignment film has a two-layer structure including a photo-alignment component and a low resistance component whose resistance is lower than that of the photo-alignment component, and the transmittance of the second alignment film is greater than that of the first alignment film.Type: ApplicationFiled: December 9, 2014Publication date: June 11, 2015Inventors: Emi HIGANO, Toshiyuki HIGANO, Takenori HIROTA
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Patent number: 9030635Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a stage including an electrode formation surface, a switching element, a second electrode and a first vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The electrode formation surface is positioned closer to the second substrate than a portion of the first vertical alignment film, which opposes the first electrode.Type: GrantFiled: September 13, 2013Date of Patent: May 12, 2015Assignee: Japan Display Inc.Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kenji Nakao, Kazuhiro Nishiyama
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Publication number: 20150109569Abstract: An object of the present invention is to realize a liquid crystal display device having a photo-aligned alignment film in which the alignment film is overlapped with a seal material to downsize a frame area, and the reliability of a seal portion can be secured. A first alignment film and a second alignment film are overlapped with a seal material, the first alignment film and the second alignment film are made of material containing 0.5 wt % or larger and 2 wt % or smaller of an amine-system silane coupling agent, and the shrinkage ratio and the storage elastic modulus of the seal material evaluated using the modulus of volume change by a specific gravity cup method are 5.1% or smaller and 9.2 Pa or smaller, respectively. Accordingly, a frame area can be downsized, and the reliability of a seal portion can be maintained.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: Noboru KUNIMATSU, Yasushi TOMIOKA, Toshiyuki HIGANO, Emi HIGANO, Midori TSUKANE, Hirofumi WAKEMOTO, Kazuhiro NISHIYAMA
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Publication number: 20150042912Abstract: According to one embodiment, a liquid crystal display apparatus includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a wall portion, a switching element, a second electrode and a vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The second electrode includes a wall electrode provided on a wall electrode formation surface forming a side surface of the wall portion.Type: ApplicationFiled: August 8, 2014Publication date: February 12, 2015Applicant: Japan Display Inc.Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kazuhiro Nishiyama
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Patent number: 8823634Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel, a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction, a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction different from the first emission direction, and a controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected.Type: GrantFiled: November 26, 2012Date of Patent: September 2, 2014Assignee: Japan Display Inc.Inventors: Daiichi Suzuki, Kenji Nakao, Kazuhiro Nishiyama, Emi Higano
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Publication number: 20140078453Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a stage including an electrode formation surface, a switching element, a second electrode and a first vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The electrode formation surface is positioned closer to the second substrate than a portion of the first vertical alignment film, which opposes the first electrode.Type: ApplicationFiled: September 13, 2013Publication date: March 20, 2014Applicant: Japan Display Inc.Inventors: Emi HIGANO, Mitsutaka Okita, Daiichi Suzuki, Kenji Nakao, Kazuhiro Nishiyama
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Patent number: 8570448Abstract: In one embodiment, a liquid crystal shutter includes a first liquid crystal panel for left eye and a second liquid crystal panel for right eye. Each liquid crystal panel includes a pair of electrode substrates and a liquid crystal layer held between the electrode substrates. A driving circuit switches the first and second liquid crystal panels between a transmissive state and a non-transmissive state by turns by applying a voltage to the first and second liquid crystal panels while inversing the polarity of the voltage applied between the pair of the electrode substrates at least once during a period in the transmissive state.Type: GrantFiled: December 10, 2010Date of Patent: October 29, 2013Assignee: Japan Display Central Inc.Inventors: Mitsutaka Okita, Shigesumi Araki, Emi Higano
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Publication number: 20130258241Abstract: According to one embodiment, a liquid crystal display apparatus includes a display panel, an illumination module which illuminates the display panel, a display controller which controls gradation display which corresponds to an image signal in a first subframe period, and non-gradation display which does not correspond to the image signal in a second subframe period, and performs control in a manner that scanning starting from an upper end and going toward center of the display panel and scanning starting from a lower end and going toward the center of the display panel are alternately performed, and an illumination controller which controls turning on/off of the illumination module.Type: ApplicationFiled: March 14, 2013Publication date: October 3, 2013Inventors: Emi HIGANO, Shigesumi Araki, Kazuhiro Nishiyama, Daiichi Suzuki
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Patent number: 8477127Abstract: A liquid crystal display device includes a display portion having a first substrate, a second substrate opposing to the first substrate, a liquid crystal layer held between the first and second substrates, and a plurality of pixels arranged in a delta shape. A plurality of pixel electrodes are respectively connected to signal lines extending in a first direction via a switch. The switch is controlled by scanning lines extending in a second direction which orthogonally crosses the first direction. The signal lines extend in a space between the pixel electrodes in a meandering shape in the second direction, and two kinds of color pixels are connected with a common signal line in turn via the pixel switch.Type: GrantFiled: April 30, 2010Date of Patent: July 2, 2013Assignee: Japan Display Central Inc.Inventors: Yukio Tanaka, Tetsuo Fukami, Emi Higano, Shigesumi Araki, Ken Shiiba