Abstract: Provided is a light-emitting device and the like in which a light source emits light on the basis of information obtained through communications and the light thus emitted is easy for a user to visually recognize. A light-emitting device includes an LED, a light guide plate, a transparent NFC antenna sheet, and an NFC antenna. The transparent NFC antenna sheet and the NFC antenna are disposed on a principal surface or a backside surface of the light guide plate. At least some part of the light guided by the light guide plate exits out through the principal surface. The LED emits light on the basis of identification information obtained through communications via the NFC antenna sheet and the NFC antenna.

Abstract: Provided is a light-emitting device and the like in which a light source emits light on the basis of information obtained through communications and the light thus emitted is easy for a user to visually recognize. A light-emitting device includes an LED, a light guide plate, a transparent NFC antenna sheet, and an NFC antenna. The transparent NFC antenna sheet and the NFC antenna are disposed on a principal surface or a backside surface of the light guide plate. At least some part of the light guided by the light guide plate exits out through the principal surface. The LED emits light on the basis of identification information obtained through communications via the NFC antenna sheet and the NFC antenna.

Abstract: Near field radio communication with a communication device located at or near a housing is enabled in a simple configuration. A housing defining at least part of a space having a prescribed shape includes an NFC antenna. In addition, the NFC antenna is disposed along a surface of the housing for performing the near field radio communication with an NFC card located inside the space having the prescribed shape.

Abstract: The present invention provides an edge-lit backlight device (100A) utilizing a simple configuration to reduce luminance unevenness, and a liquid crystal display device including the edge-lit backlight device. The edge-lit backlight device includes: a light guide plate (30) configured to emit light incident from an edge surface (31) thereof toward the front; a light source (40) disposed to face the edge surface of the light guide plate with a space in between; and a first optical sheet (70) disposed in front of the light guide plate, the first optical sheet including a structural member (71) extending, in a plan view, in a direction in which light is emitted by the light source toward the light guide plate, the first optical sheet being situated such that an edge thereof adjacent to the light source is farther from the light source than the edge surface of the light guide plate is in a plan view.

Abstract: A surface light-emitting unit of the present invention is an LED module (30) for emitting light from an LED chip (6) of a light-emitting element part (1) via a light flux control section (22) of a light flux control part (2), the light flux control section (22) being fixed by a plurality of columnar sections (21) above a fixing surface of a substrate (4) on which fixing surface the light-emitting element part (1) is fixed. This provides an appropriate gap between the light-emitting element part (1) and the light flux control section (22) for heat release.

Abstract: A surface light-emitting unit of the present invention is an LED module (30) for emitting light from an LED chip (6) of a light-emitting element part (1) via a light flux control section (22) of a light flux control part (2), the light flux control section (22) being fixed by a plurality of columnar sections (21) above a fixing surface of a substrate (4) on which fixing surface the light-emitting element part (1)is fixed. This provides an appropriate gap between the light-emitting element part (1) and the light flux control section (22) for heat release.

Abstract: In a surface light source apparatus 1 for irradiating light in a planar form by arranging a plurality of tubular light sources 2 at high density in the middle of a screen so that brightness at the middle of the screen is high, each tubular light source 2 positioned in rows at topmost and bottommost edges is arranged to be closer toward screen corner sections in a plan view so as to compensate for lack of brightness at the screen corner sections in a plan view. In this manner, each tubular light source 2 is arranged by placing each tubular light source 2 in the rows at the topmost and bottommost edges closer in a row direction toward each corner section B of the reflection sheet 5. Thereby, brightness at the middle of a screen is maintained and enhanced, and display quality at corner sections of the screen is improved.

Abstract: The purpose of the present invention is providing a light emitting module capable of emitting illumination light having a nearly uniform color tone as a whole. The invention also provides a surface light source having such light emitting modules, and a liquid crystal display and an illuminating device having such a surface light source. In a light emitting module (50), adjacent dot light sources (17, 17) satisfy the relationships ?X1+?X2=?X×2 and ?Y1+?Y2=?Y×2, so that the resultant mixed color can fall within a target chromaticity rank area (M), and the center (gc) of a first chromaticity rank area g and the center (Ec) of a second chromaticity rank area (E) are axisymmetric with respect to virtual straight lines (gE1, gE2) that pass through the center (Mc) of the target chromaticity rank area (M) and parallel to one side or another side of the target chromaticity rank area (M).

Abstract: Provided is a liquid crystal display device that can reduce costs while preventing moving image blurring. The device includes a liquid crystal panel and a backlight device. The backlight device includes a rectangular light guide plate 10 in plan view, and a light source unit emitting light toward a light incident surface corresponding to a side surface of the light guide plate. The light source unit is configured by a plurality of light source blocks arranged in a Y direction. The light guide plate 10 includes a groove structure 32 for taking out light upward on its front surface opposed to a back surface of the liquid crystal panel, and a dot pattern 31 for scattering light on its back surface. The groove structure 32 has a plurality of stripe-like grooves extending in an X direction, wherein a ridge extending in the X direction is formed at a portion sandwiched between the two adjacent grooves.

Abstract: In a surface light source apparatus 1 for irradiating light in a planar form by arranging a plurality of tubular light sources 2 at high density in the middle of a screen so that brightness at the middle of the screen is high, each tubular light source 2 positioned in rows at topmost and bottommost edges is arranged to be closer toward screen corner sections in a plan view so as to compensate for lack of brightness at the screen corner sections in a plan view. In this manner, each tubular light source 2 is arranged by placing each tubular light source 2 in the rows at the topmost and bottommost edges closer in a row direction toward each corner section B of the reflection sheet 5. Thereby, brightness at the middle of a screen is maintained and enhanced, and display quality at corner sections of the screen is improved.

Abstract: Provided is a liquid crystal display device that can reduce costs while preventing moving image blurring. The device includes a liquid crystal panel and a backlight device. The backlight device includes a rectangular light guide plate 10 in plan view, and a light source unit emitting light toward a light incident surface corresponding to a side surface of the light guide plate. The light source unit is configured by a plurality of light source blocks arranged in a Y direction. The light guide plate 10 includes a groove structure 32 for taking out light upward on its front surface opposed to a back surface of the liquid crystal panel, and a dot pattern 31 for scattering light on its back surface. The groove structure 32 has a plurality of stripe-like grooves extending in an X direction, wherein a ridge extending in the X direction is formed at a portion sandwiched between the two adjacent grooves.

Abstract: The purpose of the present invention is providing a light emitting module capable of emitting illumination light having a nearly uniform color tone as a whole. The invention also provides a surface light source having such light emitting modules, and a liquid crystal display and an illuminating device having such a surface light source. In a light emitting module (50), adjacent dot light sources (17, 17) satisfy the relationships ?X1+?X2=?X×2 and ?Y1+?Y2=?Y×2, so that the resultant mixed color can fall within a target chromaticity rank area (M), and the center (gc) of a first chromaticity rank area g and the center (Ec) of a second chromaticity rank area (E) are axisymmetric with respect to virtual straight lines (gE1, gE2) that pass through the center (Mc) of the target chromaticity rank area (M) and parallel to one side or another side of the target chromaticity rank area (M).

Abstract: A surface-emission unit to prevent irregularity in brightness from being generated is provided. The surface-emission unit is composed of light-emission element parts each having a light-emission element, aligned and arranged on a substrate two-dimensionally, and optical lenses each arranged on the substrate with respect to each light-emission element part, to diffuse light from the light-emission element, and a support part to fix the optical lens onto the substrate is arranged so as not overlap a line connecting the light-emission element part corresponding to the optical lens fixed by the support part, to another light-emission element part adjacent to the light-emission element part.

Abstract: A surface light-emitting unit of the present invention is an LED module (30) for emitting light from an LED chip (6) of a light-emitting element part (1) via a light flux control section (22) of a light flux control part (2), the light flux control section (22) being fixed by a plurality of columnar sections (21) above a fixing surface of a substrate (4) on which fixing surface the light-emitting element part (1)is fixed. This provides an appropriate gap between the light-emitting element part (1) and the light flux control section (22) for heat release.

Abstract: A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode, a capacitor that is connected to the photodiode via an accumulation node and accumulates charges according to an electric current in the photodiode; a sensor switching element transistor that causes the accumulation node and an output line to be conductive with respect to each other in response to a readout signal and outputs an output signal according to the potential of the accumulation node to the output line; a variable capacitor that is provided between the accumulation node and an input electrode, and whose capacitance varies when a pressure is applied by a touching operation; and a control switching element transistor to which a control signal for switching conduction and non-conduction between the variable capacitor and the accumulation node is input.

Abstract: Provided is a backlight unit capable of increasing luminance and of reducing unevenness in luminance. The backlight unit includes: a light diffusing member provided to cover a light emitting element mounted on a surface of a substrate; and a first light reflective member having a hole portion opened larger in size than an outer shape of the light diffusing member, the first light reflective member being provided on the surface of the substrate while having the light diffusing member protrude from the hole portion. In addition, a second light reflective member is further provided on the surface of the substrate, and the second light reflective member covers at least a part of a region corresponding to a gap left between the light diffusing member and the hole portion of the first light reflective member.

Abstract: A surface-emission unit to prevent irregularity in brightness from being generated is provided. The surface-emission unit is composed of light-emission element parts each having a light-emission element, aligned and arranged on a substrate two-dimensionally, and optical lenses each arranged on the substrate with respect to each light-emission element part, to diffuse light from the light-emission element, and a support part to fix the optical lens onto the substrate is arranged so as not overlap a line connecting the light-emission element part corresponding to the optical lens fixed by the support part, to another light-emission element part adjacent to the light-emission element part.