Patents by Inventor Hirokazu Morimoto
Hirokazu 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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Patent number: 9019447Abstract: A liquid crystal display device comprising: a liquid crystal cell including a quadrilateral display surface and a liquid crystal layer enclosed between glass substrates and controlling light entering from a second surface side and exiting to a first surface side; a first polarizing plate including a polarizer having an absorption axis and adhered to the first surface side with an adhesive layer; and a second polarizing plate including a polarizer having an absorption axis and adhered to the second surface side with an adhesive layer such that one of the polarizing plates including the polarizer with a larger maximum dimension in an absorption axis direction on the display surface is adhered to the glass substrate with an adhesive layer having higher adhesion strength to the glass substrate than the adhesive layer of other polarizing plates including the polarizer with a smaller maximum dimension in the absorption axis direction.Type: GrantFiled: November 23, 2012Date of Patent: April 28, 2015Assignee: Japan Display Inc.Inventors: Kayoko Miyazaki, Keiji Tago, Hirokazu Morimoto
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Publication number: 20150070633Abstract: According to one embodiment, a display device includes a display panel configured to hold a liquid crystal layer between a first substrate and a second substrate, a cover member positioned at a side of the second substrate of the display panel, a first optical element positioned at an outer surface side of the first substrate, and a second optical element positioned between the second substrate and the cover member, bonded to an inner surface of the cover member but not bonded to the second substrate.Type: ApplicationFiled: September 11, 2014Publication date: March 12, 2015Applicant: Japan Display Inc.Inventors: Kayoko MIYAZAKI, Keiji Tago, Hirokazu Morimoto
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Publication number: 20150009462Abstract: A liquid crystal display device includes a first substrate, a second substrate including an insulative substrate and a color filter layer formed on that side of the insulative substrate, which is opposed to the first substrate, the color filter layer including a first color filter of red, a third color filter of blue which is spaced apart from the first color filter, a fifth color filter of red which is spaced apart from the third color filter, a second color filter which is located between the first color filter and the third color filter and has a color which is different from red and blue, and a fourth color filter which is located between the third color filter and the fifth color filter and has a color which is different from red and blue, and a liquid crystal layer.Type: ApplicationFiled: July 3, 2014Publication date: January 8, 2015Applicant: Japan Display Inc.Inventors: Tomoko Kozuka, Keiji Tago, Hirokazu Morimoto
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Publication number: 20140253851Abstract: According to one embodiment, a liquid crystal display device includes a first interlayer insulation film located above a first gate line and a second gate line, a first common electrode extending over the first interlayer insulation film, a second interlayer insulation film covering the first common electrode, and a first pixel electrode disposed on the second interlayer insulation film. The first common electrode extends, from a position opposed to the first pixel electrode, beyond the source line in the first direction and beyond the gate line in the second direction.Type: ApplicationFiled: February 26, 2014Publication date: September 11, 2014Applicant: Japan Display Inc.Inventors: Keisuke TAKANO, Jin Hirosawa, Arihiro Takeda, Hirokazu Morimoto
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Publication number: 20140232953Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a transmissive pixel electrode disposed in a transmissive display area, and a reflective pixel electrode with a planar plate shape which is disposed in a reflective display area, a second substrate including a common electrode, a liquid crystal layer being configured to have a less thickness in the reflective display area than in the transmissive display area, to impart a phase difference of ΒΌ wavelength to light passing at an OFF time in the reflective display area, and to impart no phase difference to light passing at an ON time in the reflective display area, and a retardation plate disposed between a second polarizer and the second substrate in the reflective display area.Type: ApplicationFiled: February 3, 2014Publication date: August 21, 2014Applicant: Japan Display, Inc.Inventors: Keiji TAGO, Hirokazu Morimoto
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Patent number: 8797482Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first insulative substrate, and a first electrode, a second substrate including a second insulative substrate, and a second electrode, a liquid crystal layer held between the first substrate and the second substrate, a first polarizer including a first polarization axis, and a second polarizer including a second polarization, wherein the first polarization axis is substantially parallel or substantially perpendicular to the direction of extension of the first electrode.Type: GrantFiled: March 7, 2012Date of Patent: August 5, 2014Assignee: Japan Display Inc.Inventors: Keiji Tago, Jin Hirosawa, Hirokazu Morimoto
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Patent number: 8786790Abstract: In one embodiment, a liquid crystal display device includes a lens array unit having a cylindrical lens array constituted by a plurality of cylindrical lenses each having a lens surface and a generatrix corresponding to the lens surface. The lens surface is arranged in a line in a direction orthogonally crossing the generatrix. A first substrate is arranged at a back side of the lens array unit and includes a pixel electrode in a belt shape extending in a different direction from the direction in which the generatrix extends. The pixel electrode is formed in a V character shape. A second substrate is arranged between the lens array unit and the first substrate including a counter electrode in a belt shape commonly arranged on the pixel electrodes extending in a parallel direction to the pixel electrode.Type: GrantFiled: March 21, 2012Date of Patent: July 22, 2014Assignee: Japan Display Inc.Inventors: Keisuke Takano, Takashi Sasabayashi, Arihiro Takeda, Keiji Tago, Jin Hirosawa, Hitomi Hasegawa, Yusuke Morita, Hirokazu Morimoto
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Publication number: 20140160417Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a pixel electrode including a contact portion and a main pixel electrode extending in a second direction from the contact portion. A width of the contact portion in a first direction crossing the second direction is greater than a width of the main pixel electrode in the first direction. The main pixel electrode includes a first portion which is located on a side close to the contact portion and has a first width in the first direction, and a second portion which is located on a side remoter from the contact portion than the first portion in the second direction and has a second width in the first direction which is smaller than the first width.Type: ApplicationFiled: December 5, 2013Publication date: June 12, 2014Applicant: Japan Display Inc.Inventors: Yusuke MORITA, Jin HIROSAWA, Hirokazu MORIMOTO, Arihiro TAKEDA
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Patent number: 8743332Abstract: In one embodiment, a first substrate includes a pixel electrode having a first main electrode in a belt-like shape extending along a first cross line direction which crosses at an acute angle in a counterclockwise direction with respect to an initial alignment direction of liquid crystal molecules, and a second main electrode in the belt-like shape extending along a second cross line direction which crosses at an acute angle in a clockwise direction with respect to the initial alignment direction of the liquid crystal molecules. A second substrate includes a counter electrode having a pair of third main electrodes in the belt-like shape arranged above a pair of regions sandwiching the first main electrode extending along a first cross line direction and a pair of fourth main electrodes in the belt-like shape arranged above a pair of regions sandwiching the second main electrode extending along the second cross line direction.Type: GrantFiled: December 29, 2011Date of Patent: June 3, 2014Assignee: Japan Display Inc.Inventors: Keisuke Takano, Arihiro Takeda, Takashi Sasabayashi, Nobuko Fukuoka, Yusuke Morita, Jin Hirosawa, Hitomi Hasegawa, Yoshitaka Yamada, Keiji Tago, Hirokazu Morimoto
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Publication number: 20140055430Abstract: A liquid crystal display device includes a first substrate including gate lines and a storage capacitance line, a first source line and a second source line, a main pixel electrode which has a strip shape, a sub-pixel electrode which is continuous with the main pixel electrode and has a strip shape extending toward the first source line and the second source line, and a first alignment film, a second substrate including second main common electrodes extending on both sides of the main pixel electrode, second sub-common electrodes which are continuous with the second main common electrodes and extend on both sides of the sub-pixel electrode, and a second alignment film, and a liquid crystal layer held between the first substrate and the second substrate.Type: ApplicationFiled: October 8, 2013Publication date: February 27, 2014Applicant: Japan Display Inc.Inventors: Jin Hirosawa, Arihiro Takeda, Hirokazu Morimoto
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Publication number: 20130321727Abstract: According to one embodiment, a liquid crystal display device includes, a first substrate including a switching element which is electrically connected to a gate line and a source line and includes a drain electrode opposed to a storage capacitance line, a pixel electrode which includes a main pixel electrode extending in a second direction and a sub-pixel electrode which extends in a first direction at a position inside a position above an edge of the drain electrode and is put in contact with the drain electrode, a second substrate including a common electrode, and a liquid crystal layer.Type: ApplicationFiled: May 30, 2013Publication date: December 5, 2013Inventors: Yusuke MORITA, Jin Hirosawa, Hirokazu Morimoto, Masakatsu Kitani
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Publication number: 20130314635Abstract: An array substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction and an auxiliary capacitance line having a trunk portion extending in the first direction so as to cross the source line and a branch portion branched from the trunk portion and extending along the source line. A switching element includes a drain line arranged under the auxiliary capacitance line so as to face the trunk portion and the branch portion thereof. A pixel electrode includes a main pixel electrode extending substantially in parallel to the source line and a contact portion electrically connected with the drain line. A counter substrate includes a couple of main common electrodes extending substantially in parallel to the main pixel electrode on the both sides sandwiching the main pixel electrode.Type: ApplicationFiled: May 17, 2013Publication date: November 28, 2013Applicant: Japan Disply Inc.Inventors: Arihiro TAKEDA, Jin Hirosawa, Tetsuya IIzuka, Hirokazu Morimoto
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Publication number: 20130300992Abstract: In a method of manufacturing a liquid crystal display device, a process for forming a first substrate includes the steps; forming a first wiring electrically connected with a switching element and extending in a first direction, forming an insulating film covering the first wiring, painting an electrically conductive film including electrically conductive material on the insulating film, and forming a second wiring electrically connected with the switching element extending in a second direction orthogonally crossing the first direction, and a pixel electrode electrically connected with the switching element apart from the second wiring by patterning the electrically conductive film. A second substrate is formed by forming a main common electrode extending in the second direction. A liquid crystal display panel is manufactured by holding liquid crystal material between the first substrate and the second substrate while the main common electrode faces the second wiring.Type: ApplicationFiled: April 29, 2013Publication date: November 14, 2013Applicant: Japan Display Inc.Inventors: Tomoko KOZUKA, Hirokazu MORIMOTO
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Publication number: 20130265515Abstract: In one embodiment, a first substrate includes a gate line, a source line, a switching element electrically connected with the gate line and the source line, and a pixel electrode including a sub-pixel electrode electrically connected with the switching element in the shape of a belt, and a main pixel electrode electrically connected with the sub-pixel electrode. A first alignment film covers 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. A second alignment film covers the common electrode. A liquid crystal layer including liquid crystal molecules is held between the first substrate and the second substrate. Volume resistivity values of the first and second alignment films are lower than that of the liquid crystal layer.Type: ApplicationFiled: January 25, 2013Publication date: October 10, 2013Inventors: Hitomi HASEGAWA, Hirokazu Morimoto
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Publication number: 20130242214Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a main pixel electrode, a second substrate including a main common electrode extending substantially in parallel to the main pixel electrode on both sides of the main pixel electrode, and a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate. A horizontal inter-electrode distance in a first direction between the main pixel electrode and the main common electrode is in a range of 11 ?m or more and 13 ?m or less, and a dielectric constant anisotropy of the liquid crystal layer is 10 or more.Type: ApplicationFiled: March 5, 2013Publication date: September 19, 2013Inventors: Hitomi HASEGAWA, Jin Hirosawa, Yusuke Morita, Hirokazu Morimoto, Arihiro Takeda
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Publication number: 20130169918Abstract: In one embodiment, a first substrate is provided with a pixel electrode including a contact portion, a pair of main pixel electrodes extending in a first direction from the contact portion, a sub-pixel electrode arranged between the contact portion and an end of the extending main pixel electrodes and extending in a second direction so as to connect the pair of main pixel electrodes. A second substrate is provided with a common electrode including first and second main common electrodes sandwiching the pair of the main pixel electrodes, a third main common electrode arranged substantially in the center between the pair of main pixel electrodes and extending in parallel with the first and second main common electrodes, and a sub-common electrode arranged between the contact portion and the sub-pixel electrode and connected with the first, second and third main common electrodes extending in the second direction.Type: ApplicationFiled: December 26, 2012Publication date: July 4, 2013Inventors: Masato Kesho, Hirokazu Morimoto, Kazuhiro Takahashi, Jin Hirosawa
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Publication number: 20130135564Abstract: A liquid crystal display device comprising: a liquid crystal cell including a quadrilateral display surface and a liquid crystal layer enclosed between glass substrates and controlling light entering from a second surface side and exiting to a first surface side; a first polarizing plate including a polarizer having an absorption axis and adhered to the first surface side with an adhesive layer; and a second polarizing plate including a polarizer having an absorption axis and adhered to the second surface side with an adhesive layer such that one of the polarizing plates including the polarizer with a larger maximum dimension in an absorption axis direction on the display surface is adhered to the glass substrate with an adhesive layer having higher adhesion strength to the glass substrate than the adhesive layer of other polarizing plates including the polarizer with a smaller maximum dimension in the absorption axis direction.Type: ApplicationFiled: November 23, 2012Publication date: May 30, 2013Inventors: Kayoko Miyazaki, Keiji Tago, Hirokazu Morimoto
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Publication number: 20130057815Abstract: In one embodiment, a first substrate includes a main pixel electrode and a first alignment film formed on the main pixel electrode having vertical alignment characteristics. A second substrate includes a pair of main common electrodes and a second alignment film formed on the main common electrodes having vertical alignment characteristics. A liquid crystal layer is held between the first substrate and the second substrate having positive dielectric anisotropy. The main pixel electrode is arranged extending in a first direction. The pair of main common electrodes is arranged in the first direction, respectively, so as to sandwich the main pixel electrode.Type: ApplicationFiled: July 11, 2012Publication date: March 7, 2013Applicant: Japan Display Central Inc.Inventors: Keisuke Takano, Jin Hirosawa, Arihiro Takeda, Hirokazu Morimoto
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Publication number: 20130050601Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a plurality of first signal lines disposed with a first pitch along a second direction, a plurality of second signal lines disposed with a second pitch along a first direction, and a first electrode including an n-number of first main electrodes (n is an integer of 2 or more), a second substrate including a second electrode including a plurality of second main electrodes disposed with a third pitch along the first direction, wherein an n-number of times the third pitch is substantially equal to the second pitch, and any one of the second main electrodes is located above each of the second signal lines.Type: ApplicationFiled: July 5, 2012Publication date: February 28, 2013Inventors: Arihiro Takeda, Hirokazu Morimoto, Jin Hirosawa
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Publication number: 20130033663Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first insulative substrate, and a first electrode, a second substrate including a second insulative substrate, and a second electrode, a liquid crystal layer held between the first substrate and the second substrate, a first polarizer including a first polarization axis, and a second polarizer including a second polarization, wherein the first polarization axis is substantially parallel or substantially perpendicular to the direction of extension of the first electrode.Type: ApplicationFiled: March 7, 2012Publication date: February 7, 2013Inventors: Keiji TAGO, Jin HIROSAWA, Hirokazu MORIMOTO