Abstract: A tempered glass has a surface and a thickness. When a compressive stress of the tempered glass is represented by a positive number and a tensile stress thereof is represented by a negative number, the compressive stress at the surface is 400 MPa or more, a stress profile of the tempered glass obtained by measuring a stress in a depth direction from the surface has inflection points at each of which a second derivative of the stress profile becomes zero between the surface and a depth equal to half of the thickness, and the compressive stress value at a first inflection point at a position closest to the surface among the inflection points is 150 MPa or less. The compressive stress at a second inflection point at a position deeper than the first inflection point is 45 MPa or less.

Abstract: A glass article includes a glass composition including mole percent (mol %) to 70 mol % of SiO2, 5 mol % to 15 mol % of Al2O3, 5 mol % to 15 mol % of Na2O, greater than 0 mol % and equal to or less than 5 mol % of K2O, 5 mol % to 15 mol % of Li2O, and greater than 0 mol % and equal to or less than 5 mol % of MgO, and satisfying Relation (1) below: 0.1?Al2O3/(sum of Na2O,K2O, and Li2O)?0.7??(1), where Al2O3, Na2O, K2O, and Li2O in the Relation (1) denote contents (mol %) of Al2O3, Na2O, K2O, and Li2O, respectively, in the glass composition, and the glass article has a thickness of 100 micrometers (?m) or less.

Abstract: A tempered glass has a surface and a thickness, wherein a stress profile of the tempered glass includes a first peak at the surface, at which the compressive stress becomes a maximum, a first bottom at which the stress, which gradually reduces from the first peak in the depth direction, becomes a local minimum, a second peak at which the compressive stress, which gradually increases from the first bottom in the depth direction, becomes a local minimum, and a second bottom at which the tensile stress, which gradually reduces from the second peak in the depth direction, becomes a minimum. The compressive stress at the first peak is 500 MPa or more, the compressive stress at the second peak P2 is from 15 MPa to 250 MPa, and the depth of layer of the second peak is from 4% to 20% of the thickness.

Abstract: An aspect of the present invention is a voltage supply device including: a controller which outputs a signal indicating any one bus voltage determined by negotiation among a plurality of bus voltages from a power supply circuit to an external device; a reference voltage generation unit which generates a reference voltage corresponding to the signal; a detection voltage output unit which detects the bus voltage and outputs a detection voltage; a comparison unit which compares the detection voltage with the reference voltage; and a switch unit which switches the supply state of the bus voltage to the external device in response to the comparison result.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: A tempered glass sheet according to an embodiment of the present invention has a compressive stress layer on a surface of the tempered glass sheet, in which a compressive stress value on the outermost surface of the compressive stress layer is 200 MPa or higher, and a bending strain is 30×10?4 or less.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: There is provided a tempered glass having an extremely small thickness, high strength, and high safety as compared to the related art. A plate-shaped or sheet-shaped tempered glass includes: a compression stress layer on a surface thereof; and a tensile stress layer on an inner side in a thickness direction of the glass with respect to the compression stress layer, and includes at least partially a thin portion having a thickness t1 and being bendable, the thickness t1 is 105 ?m or less, a depth DOC of the compression stress layer is 9.0 ?m or less, and CS/DOC?95 is satisfied.

Abstract: A support glass substrate of the present invention is a support glass substrate for supporting a substrate to be processed, the support glass substrate including lithium aluminosilicate-based glass, having a content of Li2O of from 0.02 mol % to 25 mol % in a glass composition, and having an average linear thermal expansion coefficient within a temperature range of from 30° C. to 380° C. of 38×10?7/° C. or more and 160×10?7/° C. or less.

Abstract: A tempered glass sheet of the present invention is a tempered glass sheet having a compressive stress layer in a surface thereof, wherein the tempered glass sheet comprises as a glass composition, in terms of mol %, 50% to 75% of SiO2, 1% to 20% of Al2O3, 5% to 30% of B2O3, 0% to 15% of Li2O, 1% to 25% of Na2O, 0% to 10% of K2O, and 0% to 15% of P2O5, wherein the tempered glass sheet has a molar ratio [Al2O3]/[Na2O] of from 0.1 to 2.5, and wherein the tempered glass sheet satisfies the following relationship: [SiO2]?3×[Al2O3]?[B2O3]?2×[Li2O]?1.5×[Na2O]?[K2O]+1.2×[P2O5]??20%.

Abstract: An aspect of the present invention is a voltage supply device including: a controller which outputs a signal indicating any one bus voltage determined by negotiation among a plurality of bus voltages from a power supply circuit to an external device; a reference voltage generation unit which generates a reference voltage corresponding to the signal; a detection voltage output unit which detects the bus voltage and outputs a detection voltage; a comparison unit which compares the detection voltage with the reference voltage; and a switch unit which switches the supply state of the bus voltage to the external device in response to the comparison result.

Abstract: A video display apparatus includes a power source that supplies first electric power and supplies second electric power that is different from the first electric power to an external device, a current detector that detects a current value when the second electric power is supplied to the external device, an electric power supply controller that includes a plurality of electric power supply modes and performs control that supplies electric power corresponding to one electric power supply mode among the plurality of electric power supply modes to the external device as the second electric power, and a controller that performs control that limits the first electric power when the current value detected by the current detector reaches a predetermined first threshold value.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: A tempered glass has a surface and a thickness, wherein a stress profile of the tempered glass includes a first peak at the surface, at which the compressive stress becomes a maximum, a first bottom at which the stress, which gradually reduces from the first peak in the depth direction, becomes a local minimum, a second peak at which the compressive stress, which gradually increases from the first bottom in the depth direction, becomes a local minimum, and a second bottom at which the tensile stress, which gradually reduces from the second peak in the depth direction, becomes a minimum. The compressive stress at the first peak is 500 MPa or more, the compressive stress at the second peak P2 is from 15 MPa to 250 MPa, and the depth of layer of the second peak is from 4% to 20% of the thickness.

Abstract: A tempered glass has a surface and a thickness. When a compressive stress of the tempered glass is represented by a positive number and a tensile stress thereof is represented by a negative number, the compressive stress at the surface is 400 MPa or more, a stress profile of the tempered glass obtained by measuring a stress in a depth direction from the surface has inflection points at each of which a second derivative of the stress profile becomes zero between the surface and a depth equal to half of the thickness, and the compressive stress value at a first inflection point at a position closest to the surface among the inflection points is 150 MPa or less. The compressive stress at a second inflection point at a position deeper than the first inflection point is 45 MPa or less.

Abstract: A video display apparatus includes a power source that supplies first electric power and supplies second electric power that is different from the first electric power to an external device, a current detector that detects a current value when the second electric power is supplied to the external device, an electric power supply controller that includes a plurality of electric power supply modes and performs control that supplies electric power corresponding to one electric power supply mode among the plurality of electric power supply modes to the external device as the second electric power, and a controller that performs control that limits the first electric power when the current value detected by the current detector reaches a predetermined first threshold value.