Abstract: A pressure detection unit includes a first substrate and a second substrate which are disposed in opposition to each other and subject to load from the outside, a pair of electrodes provided in distribution in the first substrate and the second substrate, the electrodes being disposed linearly in opposition to each other, electrically conductive pressure-sensitive ink disposed between the pair of electrodes to cover at least one of these electrodes and having electrical characteristics which varies according to the load, and an adhesion member for adhering the first substrate and the second substrate to each other with the pair of electrodes and the pressure-sensitive ink being placed in contact with each other.

Abstract: A method of manufacturing the optical sheet is provided. The method includes: a first step of heating a composition containing a liquid crystal monomer or liquid crystal prepolymer and a photopolymerization initiator at a temperature equal to or higher than a melting point of the liquid crystal monomer or liquid crystal prepolymer and pressing the composition in a state where the composition is held between a master including a plurality of solid structures disposed continuously in one surface and having shape anisotropy in the one surface and a light transmission film disposed so as to face the solid structures of the master. The method also includes a second step of irradiating the composition with ultraviolet rays at a temperature lower than a phase transmission temperature to an isotropic phase to polymerize the liquid crystal monomer or liquid crystal prepolymer and, after that, separating the light transmission film from the master.

Abstract: A protection panel for detecting an X-Y coordinate as an operation position from a potential gradient based on a touch operation to a front substrate is provided. A rear substrate (5) has a first transparent resistive film (5A) and a contact point (5G) connected to a pair of first terminals (5D) through routing circuits (5C) so that the contact point (5G) is arranged in parallel with the first transparent resistive film (5A). When the rear substrate (5) and a front substrate (6) are connected, the contact point (5G) and an expanded region (6Ab) of a second transparent resistive film (6A) on the front substrate (6), which are arranged opposingly with a predetermined gap, form a switch (12) for detecting a contact therebetween, based on a voltage detected in the terminals (6D,5D) of one of the rear substrate (5) and the front substrate (6) when a voltage is applied between the terminals (5D,6D) of the other.

Abstract: An information input apparatus includes a panel member having a touch type information input function, a package having a support portion for supporting the panel member, a pressure detection portion provided between/across the panel member and the support portion for detecting a pressure operation force to the panel member, and an initial load applying portion provided between/across/across the panel member and the support portion and configured to draw the panel member and the support portion toward each other, thereby to apply an initial load to the pressure detection portion, so that an information input operation corresponding to a pressing force to the panel member can be performed speedily.

Abstract: In an optical recording and reproducing medium having a groove 2 formed along a recording track and which is recorded and/or reproduced with irradiation of light L having a predetermined wavelength ?, a track pitch p of the groove 2 is selected in a range of from 200 nm to 350 nm and a ratio wg?/p between a width wg of the groove 2 and the track pitch p is selected in a range of from 0.24 to 0.67.

Abstract: An object of the present invention is to provide a touch panel having a press detection function, which makes it possible to suppress degradation of visibility of a display unit of a display device even when mounted on an electronic device, and also to improve a pressure measuring precision.

Abstract: A stereoscopic image observation optical-element includes: a laminated member including a ?/4 phase-difference member and a polarizing member. The ?/4 phase-difference member is provided on a light incidence surface side and has a slow axis in a first direction, and the polarizing member is provided nearer to a light emission side than the ?/4 phase-difference member and has a transmission axis in a direction crossing the first direction at substantially 45 degrees. The laminated member has a curved shape projecting to the light incidence surface side, and the ?/4 phase-difference member is configured of a material having a photoelastic coefficient of less than about 80*10?12/Pa.

Abstract: A protection panel having a touch input function of the analog resistance film method for detecting an X-Y coordinate representing an operated position by a potential gradient based on a touch operation relative to the front substrate 6, in which the back substrate 5 and the front substrate 6 include contacts 5G and 6G, respectively, connected to each other in series on the resistance films 5A and 6A through the routing circuits 5C and 6C to have potential difference, in which the contacts 5G and 6G face each other at a predetermined distance when the back substrate 5 and the front substrate 6 are connected to each other, and in which a switch 12 is provided for detecting, when voltage is applied by the contacts 5G and 6G between the electrodes 5D or 6D of either one of the front substrate 6 and the back substrate 5, whether or not the contacts 5G and 6G are brought into contact with each other based on voltage detected by the electrodes 5D or 6D of the other of the front substrate 6 and the back substrate 5.

Abstract: A nitride semiconductor element includes: a strain suppression layer formed on a silicon substrate via an initial layer; and an operation layer formed on the strain suppression layer. The strain suppression layer includes a first spacer layer, a second spacer layer formed on and in contact with the first spacer layer, and a superlattice layer formed on and in contact with the second spacer layer. The first spacer layer is larger in lattice constant than the second spacer layer. The superlattice layer has first layers and second layers smaller in lattice constant than the first layers stacked alternately on top of one another. The average lattice constant of the superlattice layer is smaller than the lattice constant of the first spacer layer and larger than the lattice constant of the second spacer layer.

Abstract: A retardation film which is manufacturable by a simple process, and being capable of preventing a decline in light use efficiency is provided. A retardation film includes: a substrate having a plurality of grooves extending in a specific direction on a surface thereof; and a retardation layer arranged in contact with the surface of the substrate, and including a liquid crystal material, the liquid crystal material being aligned along the extending direction of the plurality of grooves and being polymerized.

Abstract: A protection panel for detecting an X-Y coordinate as an operation position from a potential gradient based on a touch operation to a front substrate is provided. A rear substrate (5) has a first transparent resistive film (5A) and a contact point (5G) connected to a pair of first terminals (5D) through routing circuits (5C) so that the contact point (5G) is arranged in parallel with the first transparent resistive film (5A). When the rear substrate (5) and a front substrate (6) are connected, the contact point (5G) and an expanded region (6Ab) of a second transparent resistive film (6A) on the front substrate (6), which are arranged opposingly with a predetermined gap, form a switch (12) for detecting a contact therebetween, based on a voltage detected in the terminals (6D,5D) of one of the rear substrate (5) and the front substrate (6) when a voltage is applied between the terminals (5D,6D) of the other.

Abstract: An object of the present invention is to provide a touch panel having a press detection function, which makes it possible to suppress degradation of visibility of a display unit of a display device even when mounted on an electronic device, and also to improve a pressure measuring precision.

Abstract: An information processing system for producing a building material has a design drawing generator, a list generator and a member production controller. The design drawing generator generates design drawing information of an objective building. The list generator generates list information of the members used for the objective building. The member production controller controls the production of the members used for the objective building, based on the list information.

Abstract: A nitride semiconductor device includes: a substrate having a principal surface; a first nitride semiconductor layer formed on the principal surface of the substrate and includes one or more convex portions whose side surfaces are vertical to the principal surface; and a second nitride semiconductor layer selectively grown on the side surfaces of the one or more convex portions of the first nitride semiconductor layer.

Abstract: An information processing system for producing a building material has a design drawing generator, a list generator and a member production controller. The design drawing generator generates design drawing information of an objective building. The list generator generates list information of the members used for the objective building. The member production controller controls the production of the members used for the objective building, based on the list information.

Abstract: An information processing system for producing a building material has a design drawing generator, a list generator and a member production controller. The design drawing generator generates design drawing information of an objective building. The list generator generates list information of the members used for the objective building. The member production controller controls the production of the members used for the objective building, based on the list information.

Abstract: A nitride semiconductor device includes: a substrate having a principal surface; a first nitride semiconductor layer formed on the principal surface of the substrate and includes one or more convex portions whose side surfaces are vertical to the principal surface; and a second nitride semiconductor layer selectively grown on the side surfaces of the one or more convex portions of the first nitride semiconductor layer.

Abstract: An optical sheet has a large number of cylindrical lens elements provided successively on one of principal faces thereof. The cylindrical lens elements have a hyperboloidal face or a paraboloidal face and have a finite focal distance on the emission side of illumination light. Where a Z axis is taken in parallel to a normal line direction to the optical sheet and an X axis is taken in a direction of the row of the cylindrical lens elements, a cross sectional shape of the cylindrical lens elements satisfies Z=X2/(R+?{square root over ( )}(R2?(1+K)X2)) (where R is the radius of curvature of a distal end vertex, and K is a conic constant).

Abstract: An optical sheet has a large number of cylindrical lens elements provided successively on one of principal faces thereof. The cylindrical lens elements have a finite focal distance on the emission side of illumination light and have an aspheric face of a leftwardly and rightwardly symmetric sectional shape. Where a Z axis is taken in parallel to a normal line direction to the optical sheet and an X axis is taken in a direction of the row of the cylindrical lens elements, a cross sectional shape of the cylindrical lens elements satisfies Z=X2/(R+?{square root over ( )}(R2?(1+K)X2))+AX4+BX5+CX6+ . . . (where R is the radius of curvature of a distal end vertex, K is a conic constant, and A, B, C, . . . are aspheric coefficients).

Abstract: A retardation film which is manufacturable by a simple process, and being capable of preventing a decline in light use efficiency is provided. A retardation film includes: a substrate having a plurality of grooves extending in a specific direction on a surface thereof; and a retardation layer arranged in contact with the surface of the substrate, and including a liquid crystal material, the liquid crystal material being aligned along the extending direction of the plurality of grooves and being polymerized.