Abstract: A lighting device (1) includes a substrate (2), a light source arranged on a surface of the substrate (2), and a light diffusing member (4) configured to diffuse light emitted from the light source. The light diffusing member (4) is composed of a sheet base or a film base having a light-diffusing resin layer, and a projection (41) that protrudes in a direction of the substrate (2) and that is integrated with the sheet base or the film base.

Abstract: [Object] To provide an illumination device that enables uniform illumination by preventing an air layer from intervening between an adhesive layer and a substrate through manual bonding of a reflection sheet, and a display device including the illumination device. [Solution] An illumination device includes a substrate including a wiring pattern, a plurality of light sources connected to the wiring pattern, an adhesive layer disposed on the substrate, and a reflection sheet bonded to the substrate with the adhesive layer interposed therebetween. The reflection sheet includes openings corresponding to the plurality of light sources. In a first direction, the reflection sheet is located between the substrate and light-emitting surfaces of the light sources. The substrate has an air vent in an area in which the wiring pattern is not disposed and the adhesive layer is disposed.

Abstract: A lighting device includes a light source, a light source substrate on which the light source is mounted, an optical member disposed to face the light source substrate while having a gap therebetween, and a supporting member being transmissive and disposed between the light source substrate and the optical member. The supporting member is configured to support the optical member and includes at least a light source surrounding portion. The light source surrounding portion and the light source substrate surround the light source therebetween.

Abstract: Provided is a lighting apparatus and a liquid crystal display apparatus that, even when a plurality of light sources are arranged with a narrow pitch, support an optical member without bending and can prevent breakage of a light source caused by the optical member contacting the light source.

Abstract: The present application achieves luminance uniformity of a light-emitting region substantially circular in shape, desired high contrast, and low power consumption. A lighting device (1) is configured such that assuming that L is an external diameter of a light-emitting region (E), Xmax is the number of divisions for concentrically dividing the light-emitting region (E), and d is a radial pitch between LEDs (11) which include a centered LED (11) and LEDs (11) arranged substantially concentrically around the centered LED, d=L/(2Xmax+1), and that, in each of the n-th ring regions (Xn), an 8n number of LEDs (11) are arranged at equal pitches in a circumferential direction and are positioned at a distance equivalent to a radius nd from the centered LED (11).

Abstract: An optical sheet and backlight that can readily suppress occurrence of uneven chromaticity in a case of providing a white-color printed pattern are provided. A white-color printed pattern is provided on a light-transmitting sheet of an optical sheet to transmit or reflect light from a light source. The printed pattern is made up of at least three layers of a lower printed layer, a middle printed layer, and an upper printed layer that are layered in order on the light-transmitting sheet. Each color tone of the lower printed layer and the upper printed layer is white. A color tone of the middle printed layer is a color different from white.

Abstract: Influence of expansion or contraction of a light guiding member, which is caused by a temperature change, on illumination light is reduced. In a casing (17) of a planar lighting module (4), an LED (15) is fixed, a plurality of diffusing plates (20) each having a reflection pattern (21) and a pin-receiving portion (24) are stored, and a pin frame (34) that corresponds to the pin-receiving portion (24) is disposed. Each of the diffusing plates (20) is positioned with respect to the casing (17) when the pin-receiving portion (4) is fitted with the pin frame (34).

Abstract: A lighting device includes light sources, a light source substrate, and a reflection sheet. The light source substrate includes a plate-shaped base including a mounting surface on which mounting portions are formed. The light sources are mounted on the mounting portions with solders. The reflection sheet includes an insulating sheet, a reflection layer, and holes. The reflection layer includes a metal thin film stacked on the insulating sheet. The holes are drilled through the reflection layer and the insulating sheet at positions corresponding to the light sources so that the light sources are exposed through the holes. The light source substrate and the reflection sheet are bonded together with an adhesive layer. The insulating sheet is made of a material having a heat resistance higher than a melting temperature of the solders and an elastic modulus lower than that of the base of the light source substrate.

Abstract: A lighting device includes a substrate and light sources that are top-emitting light sources. The substrate includes a first plate surface and a second plate surface. The light sources include first electrodes and second electrodes. A reflection layer made of metal, an insulating layer, and a first conductive pattern are formed on the first plate surface in this sequence from a lower layer side. A second conductive pattern is formed on the second plate surface. The light sources are disposed on the first plate surface with the first electrodes and the second electrodes electrically connected to the first conductive pattern and at least the first electrodes or the second electrodes electrically connected to the second conductive pattern via holes in the substrate. The reflection layer is divided into divided reflection areas by slits. The holes are formed in the divided reflection areas, respectively.

Abstract: A reflection sheet stacked on a mounting surface of a light source substrate on which light sources are mounted includes an insulating sheet and a reflection layer. The insulating sheet is made of an insulating material. The reflection layer includes a metal thin film stacked on the insulating sheet. Holes are drilled through the reflection layer and the insulating sheet in a stacking direction in which the reflection layer is stacked on the insulating sheet so that the light sources are exposed therethrough. The reflection layer is divided into divided reflection areas by slits. The holes are formed in the divided reflection areas, respectively.

Abstract: An imaging system includes a light source that, in operation, emits an emitted light containing a near-infrared light in a first wavelength region, an image sensor, and a double-band pass filter that transmits a visible light in at least a part of a wavelength region out of a visible region and the near-infrared light in the first wavelength region. The image sensor includes light detection cells, a first filter that selectively transmits the near-infrared light in the first wavelength region, second to fourth filters that selectively transmit lights in second to fourth wavelength regions, respectively, which are contained in the visible light, and an infrared absorption filter. The infrared absorption filter faces the second to fourth filters and absorbs the near-infrared light in the first wavelength region.

Abstract: A lighting device has a substrate on which a plurality of light emitting elements are arranged side by side, and a reflector configured to diffusely reflect light emitted by the plurality of light emitting elements. The reflector has a predetermined reflector pattern including a light reflection part and a light transmission part. The reflector pattern is formed in the reflector such that the light reflection part overlaps the light emitting elements in front view, where each of the light emitting elements is focused on a center thereof and viewed in front of itself from one side of the substrate on which the light emitting elements are mounted. The reflector is contoured three-dimensionally to include solid portions for covering the light emitting elements one by one in the front view.

Abstract: A lighting device includes: a board; at least one light source provided on the board; at least one support member provided on a region on the board where no light source is provided; and an optical member disposed so as to face the at least one light source. A first metal part and a second metal part are provided on the board. The at least one light source is connected to the board via the first metal part while the at least one support member is connected to the board via the second metal part. The first, metal part and the second metal part are made of the same material. A height from the board to a top surface of the at least one support member is higher than a height from the board to a top surface of the at least one light source.

Abstract: [Object] To provide an illumination device that enables uniform illumination by preventing an air layer from intervening between an adhesive layer and a substrate through manual bonding of a reflection sheet, and a display device including the illumination device. [Solution] An illumination device includes a substrate including a wiring pattern, a plurality of light sources connected to the wiring pattern, an adhesive layer disposed on the substrate, and a reflection sheet bonded to the substrate with the adhesive layer interposed therebetween. The reflection sheet includes openings corresponding to the plurality of light sources. In a first direction, the reflection sheet is located between the substrate and light-emitting surfaces of the light sources. The substrate has an air vent in an area in which the wiring pattern is not disposed and the adhesive layer is disposed.

Abstract: A backlight device 12 includes LEDs 15, a light guide plate 17 having a light entering edge surface 17a opposite the LEDs 15 and having plate surfaces one of which is alight exit plate surface 17b, and a light collecting portion 22 including unit light collecting portions 22a that extend in a normal direction of the light entering edge surface 17a on the light exit plate surface 17b and are arranged in a perpendicular direction perpendicular to the normal direction. The light guide plate 17 includes an opposite edge portion 23 that is opposite from an end portion thereof having the light entering edge surface 17a, the opposite edge portion 23 has an edge surface a part of which is a curved edge surface 24 having a curved planar shape and the opposite edge portion 23 has the light exit plate surface 17b a part of which is a light collecting portion non-forming section 25 on which no light collecting portion 22 is formed.

Abstract: A direct backlight and a manufacturing method of a backlight that can prevent color unevenness are provided. A backlight includes a plurality of LEDs disposed immediately below a display panel and configured to emit white light, and an optical sheet-provided on an emitting surface side of the LEDs with an air layer interposed between the optical sheet and the LEDs. The optical sheet includes a print pattern. Chromaticity of emitted light of the LEDs and chromaticity of reflected light of the print pattern when an achromatic light source (x=0.333 and y=0.333 in a CIE-XYZ color system) is used as illumination light are equal to each other.

Abstract: The present invention provides a display device that can display chromatic color(s) and pattern(s) without power consumption in the non-display state (light off state) and an electronic apparatus including the display device. The display device includes a display panel and a transflective reflector disposed on a viewing surface side of the display panel. The transflective reflector includes a reflective polarizer. The reflective polarizer is chromatic and/or the transflective reflector further includes a chromatic layer on a side closer to the viewing surface than the reflective polarizer.

Abstract: A lighting device includes a light guide plate, a first light source, a second light source, and a case. The light guide plate includes plate surfaces and an outer peripheral surface. One of the plate surfaces is configured as a light exiting surface. Sections of the outer peripheral surface on opposite sides from each other relative to the center of the light exiting surface are configured as a first light entering surface and a second light entering surface, respectively. The first light source is disposed opposite the first light entering surface. The second light source is disposed opposite the second light entering surface. The case includes an annular wall portion surrounding an outer circumference of the light guide plate, the first light source, and the second light source. The annular wall portion includes light source non-disposing areas between the first light entering surface and the second light entering surface.

Abstract: An imaging system includes a light source that, in operation, emits an emitted light containing a near-infrared light in a first wavelength region, an image sensor, and a double-band pass filter that transmits a visible light in at least a part of a wavelength region out of a visible region and the near-infrared light in the first wavelength region. The image sensor includes light detection cells, a first filter that selectively transmits the near-infrared light in the first wavelength region, second to fourth filters that selectively transmit lights in second to fourth wavelength regions, respectively, which are contained in the visible light, and an infrared absorption filter. The infrared absorption filter faces the second to fourth filters and absorbs the near-infrared light in the first wavelength region.

Abstract: A lighting device includes a light guide plate (14) having a light exit surface (14A) having a substantially circular shape and a light entrance surface (14C) extending along an entire periphery of an outer edge of the light exit surface (14A), an LED (31A) opposite the light entrance surface (14C), and an LED (32A) that is opposite the light entrance surface (14C) and is connected in parallel to the LED (31A) and the LED (32A) is arranged opposite from the LED (31A) with having a center (C1) of the light exit surface (14A) therebetween.