Abstract: A system including a light source that, in operation, projects dots onto a target, the dots being formed by first light; a first photodetector that, in operation, detects second light resulting from the projection of the dots onto the target; and a circuit that in operation, performs an individual authentication, wherein the individual authentication includes at least the following step (i) and step (ii): step (i) determining whether the target is a living body or not based on the second light, and step (ii) performing a biometric authentication of the target.

Abstract: A temperature control method includes providing a substrate processing apparatus including a processing container, and a heater that heats the processing container; setting an amount of temperature change with respect to a target temperature having a value up to a second digit smaller than a first digit indicating a control limit value of the heater; dividing the amount of temperature change into a first temperature equal to or greater than the first digit and a second temperature less than the first digit, and calculating a ratio of dividing a time segmented by a digit difference between the first digit and the second digit, into a first time corresponding to the second temperature and a second time other than the first time; and controlling the heater to raise or lower a temperature in times before and after dividing a processing time in a processing step at the ratio.

Abstract: Provided is a display device with reduced interface reflection and high luminance. The display device includes: a display panel; and a front surface plate disposed closer to an observer side than the display panel is. The display panel in a plan view includes a display region and a frame region surrounding the display region. The front surface plate in a plan view includes a design layer that overlaps the display region. The front surface plate transmits at least part of light incident from the display panel and reflects at least part of light incident from the observer side. A transmittance of a region of the front surface plate overlaps the display region being 50% or higher. The front surface plate and the display panel are attached to each other with an optical adhesive layer. A refractive index of the optical adhesive layer is 1.4 or higher and 1.6 or lower.

Abstract: A vehicle includes wheels, a motor, pedals, a vehicle speed sensor, and a drive controller configured or programmed to control driving of the motor and to perform an automatic control using a driving force from the motor alone when at least a first precondition is met in which the rider is riding the vehicle and traveling, and the vehicle speed has reached a set speed by acceleration being not only due to a driving force from the motor.

Abstract: A lighting device includes light sources, a board having a mount surface on which the light sources are arranged, and a reflection member disposed on the mount surface of the board and having a rectangular plan view shape. The reflection member includes insertion holes in each of which at least one of the light sources is disposed and wall portions defining a surface area of the reflection member into reflection areas in a grid. Some of the wall portions surround at least one of the insertion holes. The reflection areas include a first reflection area at a corner portion of the reflection member. The wall portions include one wall portion that is included in the first reflection area and the one wall portion includes a passing portion through which light from one of the light sources that is adjacent to the reflection area via the one wall portion passes.

Abstract: A lighting device includes light sources, a board having a mount surface on which the light sources are arranged, and a reflection member disposed on the mount surface of the board and having a rectangular plan view shape. The reflection member includes insertion holes in each of which at least one of the light sources is disposed and wall portions defining a surface area of the reflection member into reflection areas in a grid. Some of the wall portions surround at least one of the insertion holes. The reflection areas include a first reflection area at a corner portion of the reflection member. The wall portions include one wall portion that is included in the first reflection area and the one wall portion includes a passing portion through which light from one of the light sources that is adjacent to the reflection area via the one wall portion passes.

Abstract: Provided is a display device in which a boundary between a display area and a frame area is less noticeable even when a liquid crystal panel is in a black display state. A display device includes: a liquid crystal panel and a backlight. The liquid crystal panel includes: a display area; and a frame area, the front surface plate includes a design layer that overlaps the display area and is configured to transmit at least a part of light incident from the liquid crystal panel and to reflect at least a part of light incident from the observer side, the backlight includes: a third area that overlaps the display area; and a fourth area that overlaps the display area, and a luminance of the fourth area is 50% or less of a luminance of the third area when the backlight is turned on.

Abstract: Provided is a display device allowing perception of any design in a non-display state while allowing perception of display images in a display state without hindrance by the design. The display device includes, in the following order from a viewer side: a front plate; and a display panel. The front plate includes: a transflective component; a design layer having a first design and being disposed on or in front of a viewer side of the transflective component; and an inverted design layer disposed on or behind a side opposite to the viewer side of the transflective component. The transflective component transmits light incident on its display panel side and partially reflects light incident on its viewer side. The inverted design layer has a second design overlaid with the first design in a plan view and being an inversion of the first design in terms of brightness or hue.

Abstract: Provided are a display device and an optical film that are capable of providing vivid reflective display without a decrease in luminance. The display device includes: an optical film; and a display panel placed closer to a back surface side than the optical film is. The optical film includes a colored semi-transparent component and a first linear polarizer or louver film being placed closer to the back surface side than the colored semi-transparent component is and being integrated with the colored semi-transparent component, the louver film including a light absorptive part and a light transmissive part arranged in a pattern. The semi-transparent component is configured to transmit part of light incident from the back surface side and reflect part of light incident from a viewer side opposite to the back surface side.

Abstract: A lighting device includes a substrate, a first conductive portion, a second conductive portion disposed with a spacing as to the first conductive portion, a first reflective layer having a first opening coinciding with the first conductive portion and a second opening coinciding with the second conductive portion, a light-emitting part connected to the first conductive portion through the first opening, a non-light-emitting part connected to the second conductive portion through the second opening, and a second reflective layer. The second reflective layer includes a first reflective portion disposed around the light-emitting part, and a second reflective portion disposed around the non-light-emitting part.

Abstract: A lighting device includes a substrate, a first conductive portion, a second conductive portion disposed with a spacing as to the first conductive portion, a first reflective layer having a first opening coinciding with the first conductive portion and a second opening coinciding with the second conductive portion, a light-emitting part connected to the first conductive portion through the first opening, a non-light-emitting part connected to the second conductive portion through the second opening, and a second reflective layer. The second reflective layer includes a first reflective portion disposed around the light-emitting part, and a second reflective portion disposed around the non-light-emitting part.

Abstract: An illumination device includes a plurality of light sources, each having a light-emission surface that faces a side opposite to a display panel; a light-source substrate that has a mount surface on a side opposite to the display panel, and that has light transmissivity, the mount surface being provided for mounting the plurality of light sources thereon; and a reflecting layer that is provided on a side of the light-source substrate opposite to the display panel so as to be spaced from the light-emission surfaces by a predetermined interval, and that reflects toward the light-source substrate light coming from the light sources, wherein the illumination device illuminates the display panel with light.

Abstract: A lighting device includes a plurality of light sources arranged side by side in a plane and a wavelength conversion sheet arranged to face a light emitting surface of each of the light sources and converting a wavelength of light from the light sources, in which the wavelength conversion sheet includes a base material having transparency, and a wavelength conversion layer in which a plurality of protrusions containing a wavelength conversion material and having a spherical surface are arranged side by side without gaps on a principal surface of the base material opposite to the light sources.

Abstract: An illumination device includes a light source, a first optical member, and a fixing portion. The first optical member includes a light reflection portion configured to reflect light, at least a part of the light reflection portion overlapping with the light source, and a light transmitting portion configured to transmit light, the light transmitting portion not overlapping the light reflection portion. A center of the light source in a plan view is defined as a first center, and a center of the light reflection portion in a plan view is defined as a second center. In the light reflection portion, the second center is located between the fixing portion and the first center at a first temperature, and at a second temperature higher than the first temperature, a position of the second center is closer to the first center than a position of the second center at the first temperature.

Abstract: Provided is a display device that makes a desired pattern or the like visible in the non-display state and is capable of displaying a display image without allowing perception of the complementary color of the color of the pattern or the like. The display device includes: a dot matrix display panel; and a design layer disposed in front of a front surface side of the display panel. The design layer includes a design part that includes a binder resin and light-reflective colored particles dispersed in the binder resin. The light-reflective colored particles reflect light having a specific wavelength while absorbing light having a wavelength other than the specific wavelength.

Abstract: An illumination device includes a light source, a first optical member, and a fixing portion. The first optical member includes a light reflection portion configured to reflect light, at least a part of the light reflection portion overlapping with the light source, and a light transmitting portion configured to transmit light, the light transmitting portion not overlapping the light reflection portion. A center of the light source in a plan view is defined as a first center, and a center of the light reflection portion in a plan view is defined as a second center. In the light reflection portion, the second center is located between the fixing portion and the first center at a first temperature, and at a second temperature higher than the first temperature, a position of the second center is closer to the first center than a position of the second center at the first temperature.

Abstract: Provided is a display device allowing perception of any design in a non-display state while allowing perception of display images in a display state without hindrance by the design. The display device includes, in the following order from a viewer side: a front plate; and a display panel. The front plate includes: a transflective component; a design layer having a first design and being disposed on or in front of a viewer side of the transflective component; and an inverted design layer disposed on or behind a side opposite to the viewer side of the transflective component. The transflective component transmits light incident on its display panel side and partially reflects light incident on its viewer side. The inverted design layer has a second design overlaid with the first design in a plan view and being an inversion of the first design in terms of brightness or hue.

Abstract: A system including a light source that, in operation, projects dots onto a target, the dots being formed by first light; a first photodetector that, in operation, detects second light resulting from the projection of the dots onto the target; and a circuit that in operation, performs an individual authentication, wherein the individual authentication includes at least the following step(i) and step(ii): step(i) determining whether the target is a living body or not based on the second light, and step(ii) performing a biometric authentication of the target.

Abstract: A lighting device includes a circuit substrate that includes a wiring circuit, LEDs that are mounted on the circuit substrate and that emit primary light, a phosphor sheet that faces a light emission surface of each of the LEDs and that has a function of converting part of the primary light into secondary light in another wavelength range that differs from the wavelength range, and a selective reflection layer that is composed of dielectric multilayer film, that is disposed between the phosphor sheet and the LEDs, that covers the light emission surface of each of the LEDs, that allows the part of the primary light to be transmitted therethrough, and that reflects part of the secondary light. The selective reflection layer is disposed so as to have convex shapes projecting in a direction opposite a direction toward the circuit substrate in regions that overlap the LEDs.

Abstract: According to an aspect of the disclosure, a lighting device includes: a plurality of light sources; and a plurality of optical sheets disposed to be stacked at a position away from the plurality of light sources. The plurality of optical sheets include a first optical sheet and a second optical sheet. Each of the first optical sheet and the second optical sheet has a unit region that modulates light emitted from a light source for each of the plurality of light sources. The unit region includes a modulation region including a light source region facing the light source, and having a relatively high modulation action of the light as compared with other regions.