Patents by Inventor Fumikazu Shimoshikiryoh
Fumikazu Shimoshikiryoh 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: 20240176173Abstract: Provided are a liquid crystal panel capable of controlling a viewing angle with a reduced thickness and a liquid crystal display device including the liquid crystal panel. A liquid crystal panel including: a polymer dispersed liquid crystal layer; first light-shielding portions extending parallel to one another; second light-shielding portions extending parallel to one another in the same direction as the first light-shielding portions and located closer to a viewing surface side than the first light-shielding portions are.Type: ApplicationFiled: October 12, 2023Publication date: May 30, 2024Inventors: Takehisa YOSHIDA, Fumikazu SHIMOSHIKIRYOH
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Publication number: 20240168339Abstract: A liquid crystal display device includes a first substrate, a second substrate disposed on a viewer side relative to the first substrate, a liquid crystal layer provided between the first substrate and the second substrate, a polarizer disposed on the viewer side relative to the liquid crystal layer, and a phase difference layer disposed between the polarizer and the liquid crystal layer, and also includes a plurality of pixels arrayed in a matrix shape. The first substrate includes a reflective layer that reflects light, a first electrode and a second electrode that can generate a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film in contact with the liquid crystal layer. The second substrate includes a second horizontal alignment film in contact with the liquid crystal layer. The liquid crystal layer takes a twist alignment when no voltage is applied.Type: ApplicationFiled: October 11, 2023Publication date: May 23, 2024Inventors: Shinichi TERASHITA, Kouichi WATANABE, Fumikazu SHIMOSHIKIRYOH
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Publication number: 20240168327Abstract: A liquid crystal display device includes a first substrate, a second substrate disposed more to a viewer side than the first substrate, and a liquid crystal layer provided between the first substrate and the second substrate, with a plurality of pixels being arrayed in a matrix shape. Each pixel includes a reflective region for display in a reflection mode. The first substrate includes a thin film transistor provided corresponding to each pixel, a pixel electrode electrically connected to the thin film transistor, and a reflective layer located at least in the reflective region. The first substrate further includes a common electrode adjacent to the pixel electrode with a dielectric layer interposed between the pixel electrode and the common electrode. At least one from among the pixel electrode and the common electrode includes at least one slit.Type: ApplicationFiled: October 11, 2023Publication date: May 23, 2024Applicant: Sharp Display Technology CorporationInventors: Fumikazu SHIMOSHIKIRYOH, Shinichi TERASHITA, Kouichi WATANABE
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Patent number: 11971632Abstract: The present invention provides a dimming panel sequentially including: a first substrate; a liquid crystal layer; and a second substrate, the first substrate sequentially including an insulating substrate, a first electrode, a first insulator layer, and a second electrode, the second electrode including, in a plan view, linear electrodes parallel to each other with slit regions in between, and bridge electrodes each of which is disposed in one of the slit regions and is connecting two adjacent linear electrodes, the bridge electrodes including a first bridge electrode in a first slit region, a second bridge electrode in a second slit region adjacent to the first slit region, and a third bridge electrode in a third slit region adjacent to the second slit region, the first bridge electrode, the second bridge electrode, and the third bridge electrode being discrete from one another.Type: GrantFiled: August 1, 2022Date of Patent: April 30, 2024Assignee: SHARP KABUSHIKI KAISHAInventors: Fumikazu Shimoshikiryoh, Shigeyuki Yamada, Toshinori Sugihara, Takehisa Yoshida
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Patent number: 11934073Abstract: A liquid crystal panel is a normally-black mode segment liquid crystal panel, and includes a plurality of pixels that are arrayed in substantial tessellation of an active region, as viewed from a direction of the normal of a first substrate, and a plurality of auxiliary electrodes that each have a portion that overlaps a gap between two pixels that are adjacent to each other, as viewed from the direction of the normal of the first substrate. A plurality of pixel electrodes, a common electrode, the plurality of auxiliary electrodes, and portions of a plurality of signal lines that are present in the active region are made of a transparent electroconductive material. The auxiliary electrodes are electrically connected to one of two pixel electrodes of the two pixels.Type: GrantFiled: August 4, 2023Date of Patent: March 19, 2024Assignee: Sharp Display Technology CorporationInventors: Takehisa Yoshida, Fumikazu Shimoshikiryoh
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Publication number: 20240053644Abstract: A liquid crystal panel is a normally-black mode segment liquid crystal panel, and includes a plurality of pixels that are arrayed in substantial tessellation of an active region, as viewed from a direction of the normal of a first substrate, and a plurality of auxiliary electrodes that each have a portion that overlaps a gap between two pixels that are adjacent to each other, as viewed from the direction of the normal of the first substrate. A plurality of pixel electrodes, a common electrode, the plurality of auxiliary electrodes, and portions of a plurality of signal lines that are present in the active region are made of a transparent electroconductive material. The auxiliary electrodes are electrically connected to one of two pixel electrodes of the two pixels.Type: ApplicationFiled: August 4, 2023Publication date: February 15, 2024Inventors: Takehisa YOSHIDA, Fumikazu SHIMOSHIKIRYOH
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Patent number: 11874577Abstract: A see-through window display includes a display panel having a plurality of pixels and a drive circuit that applies a voltage according to input gray scale data to the plurality of pixels, in which the display panel includes a first substrate having a pixel electrode, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, a first polarizer provided on the first substrate having a first polarization axis, and a second polarizer provided on the second substrate having a second polarization axis, and when a transmittance of each of the pixels when the drive circuit applies a minimum voltage to the pixel is set to TW and a transmittance of each of the pixels when the drive circuit applies a maximum voltage to the pixel is set to TB, the display panel has a normally white characteristic satisfying TW>TB.Type: GrantFiled: August 11, 2022Date of Patent: January 16, 2024Assignee: SHARP KABUSHIKI KAISHAInventor: Fumikazu Shimoshikiryoh
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Patent number: 11852933Abstract: A liquid crystal display device includes a display region, and includes a first liquid crystal panel including a color filter layer, an illumination device provided on a back face side of the first liquid crystal panel, and a second liquid crystal panel arranged between the first liquid crystal panel and the illumination device and not including a color filter layer. The second liquid crystal panel includes a first dimming region defined by a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns and facing the display region, and a second dimming region that is defined by a plurality of additional pixels each including an unshaded opening region, and is located outside the first dimming region.Type: GrantFiled: July 19, 2022Date of Patent: December 26, 2023Assignee: SHARP DISPLAY TECHNOLOGY CORPORATIONInventors: Takehisa Yoshida, Fumikazu Shimoshikiryoh, Shigeyuki Yamada
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Publication number: 20230333428Abstract: Provided is a liquid crystal display device that can achieve high-speed response in both rise time and fall time and has a high transmittance, a high contrast ratio, and excellent viewing angle characteristics. The liquid crystal display device provides color display using a field sequential driving system where each frame period includes subframe periods and includes: a liquid crystal display panel; a light source that irradiates the liquid crystal display panel with lights of multiple colors; and a controller that drives the light source to time-divisionally irradiate the liquid crystal display panel with the lights of multiple colors. The liquid crystal display panel includes, sequentially in the following order: a first substrate including pixel electrodes; a first alignment film; a liquid crystal layer; a second alignment film; and a second substrate including a common electrode.Type: ApplicationFiled: April 12, 2023Publication date: October 19, 2023Inventors: Shinichi TERASHITA, Kouichi WATANABE, Fumikazu SHIMOSHIKIRYOH
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Patent number: 11754875Abstract: The liquid crystal display panel sequentially includes: a first polarizing plate; a first substrate; a first alignment film; a liquid crystal layer containing liquid crystal molecules; a second alignment film; a second substrate; and a second polarizing plate. The liquid crystal display panel is a normally black liquid crystal display panel capable of shifting into a transparent display state. The first alignment film and the second alignment film have been subjected to alignment treatment such that a first domain and a second domain in which alignment vectors are different from each other are arranged side by side in a column direction. In a plan view, a liquid crystal alignment axis of the first domain and a liquid crystal alignment axis of the second domain obliquely intersect a polarization axis of the first polarizing plate and a polarization axis of the second polarizing plate and are parallel to each other.Type: GrantFiled: April 18, 2022Date of Patent: September 12, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Kouichi Watanabe, Shinichi Terashita, Fumikazu Shimoshikiryoh
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Patent number: 11656506Abstract: A liquid crystal display panel includes a first substrate section having a first substrate and pixel electrodes (102). Each pixel electrode (102) includes a bridging portion (102c) provided between a first pixel electrode portion (102a) and a second pixel electrode portion (102b) and linking together the first pixel electrode portion (102a) and the second pixel electrode portion (102b). A first recess (102d) is provided at one side along the width direction of the pixel electrode (102), the first recess (102d) extending from one side along the width direction of the pixel electrode (102) toward the bridging portion (102c) and being located between the first pixel electrode portion (102a) and the second pixel electrode portion (102b).Type: GrantFiled: April 27, 2022Date of Patent: May 23, 2023Assignees: SAKAI DISPLAY PRODUCTS CORPORATION, SHARP KABUSHIKI KAISHAInventors: Mitsuaki Hirata, Fumikazu Shimoshikiryoh
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Patent number: 11614659Abstract: The present invention provides a liquid crystal display panel sequentially including: a first substrate provided with a pixel electrode for each pixel; a liquid crystal layer containing liquid crystal molecules; and a second substrate provided with a counter electrode, the liquid crystal display panel including pixels each including at least four alignment regions with different inclination azimuths of the liquid crystal molecules, with no voltage applied to the liquid crystal layer, the liquid crystal molecules aligning substantially vertically to the first substrate and the second substrate with inclinations along the inclination azimuths, the liquid crystal molecules having a twist angle of substantially 0° in each alignment region, at least one of the four alignment regions including a first region where the liquid crystal molecules have a relatively small average tilt angle and a second region where the liquid crystal molecules have a relatively large average tilt angle.Type: GrantFiled: April 15, 2022Date of Patent: March 28, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Shinichi Terashita, Kouichi Watanabe, Fumikazu Shimoshikiryoh
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Publication number: 20230068177Abstract: A see-through window display includes a display panel having a plurality of pixels and a drive circuit that applies a voltage according to input gray scale data to the plurality of pixels, in which the display panel includes a first substrate having a pixel electrode, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, a first polarizer provided on the first substrate having a first polarization axis, and a second polarizer provided on the second substrate having a second polarization axis, and when a transmittance of each of the pixels when the drive circuit applies a minimum voltage to the pixel is set to TW and a transmittance of each of the pixels when the drive circuit applies a maximum voltage to the pixel is set to TB, the display panel has a normally white characteristic satisfying TW>TB.Type: ApplicationFiled: August 11, 2022Publication date: March 2, 2023Inventor: FUMIKAZU SHIMOSHIKIRYOH
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Publication number: 20230038730Abstract: The present invention provides a dimming panel sequentially including: a first substrate; a liquid crystal layer; and a second substrate, the first substrate sequentially including an insulating substrate, a first electrode, a first insulator layer, and a second electrode, the second electrode including, in a plan view, linear electrodes parallel to each other with slit regions in between, and bridge electrodes each of which is disposed in one of the slit regions and is connecting two adjacent linear electrodes, the bridge electrodes including a first bridge electrode in a first slit region, a second bridge electrode in a second slit region adjacent to the first slit region, and a third bridge electrode in a third slit region adjacent to the second slit region, the first bridge electrode, the second bridge electrode, and the third bridge electrode being discrete from one another.Type: ApplicationFiled: August 1, 2022Publication date: February 9, 2023Inventors: FUMIKAZU SHIMOSHIKIRYOH, SHIGEYUKI YAMADA, TOSHINORI SUGIHARA, TAKEHISA YOSHIDA
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Publication number: 20230037436Abstract: A liquid crystal display device includes a display region, and includes a first liquid crystal panel including a color filter layer, an illumination device provided on a back face side of the first liquid crystal panel, and a second liquid crystal panel arranged between the first liquid crystal panel and the illumination device and not including a color filter layer. The second liquid crystal panel includes a first dimming region defined by a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns and facing the display region, and a second dimming region that is defined by a plurality of additional pixels each including an unshaded opening region, and is located outside the first dimming region.Type: ApplicationFiled: July 19, 2022Publication date: February 9, 2023Inventors: Takehisa YOSHIDA, Fumikazu SHIMOSHIKIRYOH, Shigeyuki YAMADA
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Patent number: 11562702Abstract: The present invention relates to a dimming unit including: a dimming panel; and drive circuitry, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, a lower-layer electrode, a first insulating layer, multiple first electrodes, a second insulating layer, and a second electrode which is provided with multiple parallel linear electrodes and to which a constant voltage is applied, the first electrodes including multiple island electrodes which are spaced from each other in a plan view and are electrically connected to each other, at least one of the island electrodes being electrically connected to the lower-layer electrode through a contact hole, the drive circuitry controlling voltages applied to the respective first electrodes.Type: GrantFiled: March 26, 2021Date of Patent: January 24, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Fumikazu Shimoshikiryoh, Shigeyuki Yamada, Takehisa Yoshida
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Patent number: 11538435Abstract: The present invention provides a dimming panel including: a drive circuit; and dimming units arranged in one direction from a drive circuit, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, connection lines formed from a transparent conductive material and connected to the drive circuit, a first insulating layer, a first electrode, a second insulating layer, and a second electrode, the first electrode or the second electrode including dimming electrodes disposed for the respective dimming units, each of the dimming electrodes being electrically connected to one of the connection lines, an electrode width of at least one of the connection lines increasing in response to a distance from the drive circuit.Type: GrantFiled: December 7, 2021Date of Patent: December 27, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Fumikazu Shimoshikiryoh, Shigeyuki Yamada, Takehisa Yoshida
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Publication number: 20220404662Abstract: The display device includes: a color display element including pixels that are arranged in a row direction and in a column direction and each include sub-pixels of different colors; and a liquid crystal display panel stacked with the color display element, the liquid crystal display panel including a TFT substrate, a counter substrate, and a liquid crystal layer, the TFT substrate including first bus lines extending in a first direction, second bus lines extending in a second direction intersecting the first direction, and display electrodes each at a position corresponding to an intersection of one of the first bus lines and one of the second bus lines, at least one of the first bus lines and at least one of the second bus lines each overlapping at least some sub-pixels of all colors among the sub-pixels of different colors of the color display element in a plan view.Type: ApplicationFiled: June 16, 2022Publication date: December 22, 2022Inventor: Fumikazu SHIMOSHIKIRYOH
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Publication number: 20220373839Abstract: The liquid crystal display panel sequentially includes: a first polarizing plate; a first substrate; a first alignment film; a liquid crystal layer containing liquid crystal molecules; a second alignment film; a second substrate; and a second polarizing plate. The liquid crystal display panel is a normally black liquid crystal display panel capable of shifting into a transparent display state. The first alignment film and the second alignment film have been subjected to alignment treatment such that a first domain and a second domain in which alignment vectors are different from each other are arranged side by side in a column direction. In a plan view, a liquid crystal alignment axis of the first domain and a liquid crystal alignment axis of the second domain obliquely intersect a polarization axis of the first polarizing plate and a polarization axis of the second polarizing plate and are parallel to each other.Type: ApplicationFiled: April 18, 2022Publication date: November 24, 2022Inventors: Kouichi WATANABE, Shinichi TERASHITA, Fumikazu SHIMOSHIKIRYOH
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Publication number: 20220350205Abstract: The present invention provides a liquid crystal display panel sequentially including: a first substrate provided with a pixel electrode for each pixel; a liquid crystal layer containing liquid crystal molecules; and a second substrate provided with a counter electrode, the liquid crystal display panel including pixels each including at least four alignment regions with different inclination azimuths of the liquid crystal molecules, with no voltage applied to the liquid crystal layer, the liquid crystal molecules aligning substantially vertically to the first substrate and the second substrate with inclinations along the inclination azimuths, the liquid crystal molecules having a twist angle of substantially 0° in each alignment region, at least one of the four alignment regions including a first region where the liquid crystal molecules have a relatively small average tilt angle and a second region where the liquid crystal molecules have a relatively large average tilt angle.Type: ApplicationFiled: April 15, 2022Publication date: November 3, 2022Inventors: SHINICHI TERASHITA, KOUICHI WATANABE, FUMIKAZU SHIMOSHIKIRYOH