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Hayato Kurasawa

Hayato Kurasawa, Tottori JP

Patent application numberDescriptionPublished
20100128208LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a first substrate and a second substrate which face each other with a liquid crystal layer interposed therebetween, in which a display sub-pixel and a viewing angle control sub-pixel are placed adjacently to each other for each of pixels, wherein the first substrate is provided with a pixel electrode and a common electrode driven by a lateral electric field mode in the display sub-pixel and is provided with a viewing angle control electrode in the viewing angle control sub-pixel, and in which the second substrate is provided with a transparent conductive electrode formed to overlap with both of the display sub-pixel and the viewing angle control sub-pixel on a liquid crystal layer side.05-27-2010

Hayato Kurasawa, Tottori-Shi JP

Patent application numberDescriptionPublished
20100091231LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC APPARATUS - Provided is a liquid crystal display device including: first and second substrates with a liquid crystal layer interposed therebetween; a first electrode formed on the liquid crystal layer side of the first substrate and having linear portions; a second electrode having linear portions formed along the linear portions of the first electrode and adjacent to the linear portions of the first electrode at a gap in plan view; and a third electrode formed on the liquid crystal layer side of the second substrate and having linear portions overlapping with the linear portions of the second electrode in plan view, wherein electric fields having different directions are generated between the first electrode and the second electrode and between the first electrode and the third electrode.04-15-2010

Hayato Kurasawa, Matsumoto JP

Patent application numberDescriptionPublished
20090059139TRANSFLECTIVE LIQUID CRYSTAL DISPLAY PANEL AND ELECTRONIC APPARATUS - A transflective liquid crystal display panel includes an array substrate and a color filter substrate. The array substrate includes a plurality of scanning lines and signal lines arranged in a matrix, a lower electrode and an upper electrode in each of pixel regions surrounded by the scanning lines and the signal lines, and a reflecting plate disposed partly below each lower electrode, the lower electrode and the upper electrode in each pixel region being disposed facing each other with an insulating film therebetween, the lower electrodes being composed of a transparent conductive material, the upper electrodes each having a plurality of slits. The color filter substrate includes color filter layer segments arranged in correspondence to the pixel regions. The plurality of slits in each upper electrode have first open ends and second closed ends. Each color filter layer segment for the corresponding pixel region has a window where the color filter layer segment does not exist, the window being located at a position above the corresponding reflecting plate and facing the second closed ends of the slits.03-05-2009
20090225267LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS - A liquid crystal device is provided which includes: a first substrate and a second substrate that are disposed to face each other; a liquid crystal layer that is sandwiched between the first substrate and the second substrate; a first electrode that is provided on the liquid crystal layer side of the first substrate; an insulating layer that is provided on the liquid crystal layer side of the first electrode; and a second electrode that is provided on the liquid crystal layer side of the insulating layer, in which the first substrate has formed thereon a plurality of data lines and a plurality of scan lines which intersect each other; sub-pixels are formed at regions surrounded by the data lines and the scan lines; the second electrode has a plurality of linear electrodes that is disposed with a gap therebetween; each of the plurality of linear electrodes extends in a long-axis direction of the sub-pixels and has at least one bent portion; the bent portion has such a shape that both sides thereof are inclined in opposite directions with respect to the long-axis direction of the sub-pixels; and the data lines or the scan lines are bent in an extending direction of the linear electrodes having the bent portion.09-10-2009

Patent applications by Hayato Kurasawa, Matsumoto JP

Hayato Kurasawa, Matsumoto-Shi JP

Patent application numberDescriptionPublished
20080204641Liquid crystal device and electronic apparatus - A liquid crystal device which has a first and second electrodes formed on a second substrate and which controls allows alignment of liquid crystal molecules by an electric field generated between the first and second electrodes, wherein the liquid crystal molecules in the liquid crystal layer are aligned in a first direction in a plane of the substrate, wherein a phase difference layer having molecules, which are inclined in the plane of the first or second substrate and are aligned in directions different from one another in the transmissive display portion and the reflective display portion, is formed on a surface of the first or second substrate opposed to the liquid crystal layer, and wherein a director of the molecules of the phase difference layer is aligned in a second direction parallel to the first direction at least in the plane of the transmissive display portion.08-28-2008
20080218462Method for driving electro-optic device, electro-optic device, and electronic apparatus - A method for diving an electro-optic device including a pair of substrates sandwiching an electro-optic layer, and first and second electrodes disposed on one of the pair of substrates, the first electrode being used to drive the electro-optic layer, the second electrode being disposed closer to the electro-optic layer than the first electrode. The method involves shifting one of signal potentials each of which is input to at least one of the first and second electrodes such that a potential difference between the first and second electrodes in a case where the signal potential input to the first electrode is higher than the signal potential input to the second electrode is larger than a potential difference between the first and second electrodes in a case where the signal potential input to the first electrode is lower than the signal potential input to the second electrode, when a gray-scale level defined by white luminance in the case where the signal potential input to the first electrode is higher than the signal potential input to the second electrode is equivalent to the gray-scale level in the case where the signal potential input to the first electrode is lower than the signal potential input to the second electrode.09-11-2008
20080284962TRANSVERSE FIELD TYPE LIQUID CRYSTAL DISPLAY PANEL - A transverse field type liquid crystal display panel has multiple scan lines 11-20-2008
20090079915TRANSFLECTIVE LIQUID CRYSTAL DISPLAY PANEL AND ELECTRONIC APPARATUS - The invention provides, as an aspect thereof, a transflective liquid crystal display panel that includes: a first substrate that has a plurality of pixel areas, each of the plurality of pixel areas having a transmissive area and a reflective area; and a second substrate that is provided opposite to the first substrate with a liquid crystal layer being sandwiched therebetween. In the configuration of a transflective liquid crystal display panel according to this aspect of the invention, the second substrate has (1) a color filter that corresponds to a plurality of color components, the color filter that corresponds to the plurality of color components having such an array pattern that corresponds to the plurality of pixel areas, (2) a phase difference layer that is formed on the liquid-crystal-layer-side face of the second substrate so as to correspond to the reflective area, and (3) a member that lowers a light transmission factor, the light-transmission-factor reduction member being formed at a region that at least overlaps, when viewed in plan, the side portion of the phase difference layer.03-26-2009
20090201451LIQUID CRYSTAL DISPLAY PANEL - A liquid crystal display panel includes a pair of substrates opposed to each other with a liquid crystal layer interposed therebetween. In the liquid crystal display panel, a plurality of pixel areas are formed in one of the pair of substrates and each of the pixel areas is provided with an upper electrode having a plurality of slit-shaped openings, a lower electrode formed in the substrate through the upper electrode and an insulation layer, and an alignment film formed close to the liquid crystal layer. A longitudinal direction of the plurality of slit-shaped openings and a rubbing direction of the alignment film form a predetermined angle therebetween. In addition, in the lower electrode, areas where the lower electrode does not exist are formed in portions in which ends of the slit-shaped openings of the upper electrode overlap with the lower electrode in plan view.08-13-2009

Patent applications by Hayato Kurasawa, Matsumoto-Shi JP

Hayato Kurasawa, Kanagawa JP

Patent application numberDescriptionPublished
20110187981LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes: a pair of substrates that are bonded together with a sealing member having a closed loop shape that is formed around a display region with a space maintained from the display region; and a liquid crystal layer that is disposed between the pair of substrates so as to maintain a cell gap of a predetermined thickness, wherein, between the display region and the sealing member, a cell thick area, in which a cell gap larger than the cell gap of the display region is formed, is formed.08-04-2011