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: An LED light source substrate includes a circuit board, LED bare chips, and a high refractive index layer. A wiring circuit is formed on the circuit board. The LED bare chips are mounted on the circuit board. The high refractive index layer is made of a material having light transmissivity and a refractive index higher than 1. The high refractive index layer is disposed astride the LED bare chips to embed the LED bare chips. The high refractive index layer has convex portions protruding to an opposite side to the circuit board at positions at which the LED bare chips are embedded.

Abstract: [Object] To provide a lighting device and a display device that can prevent contact between a reflective sheet having a metal film and solder firmly fixed to terminal areas of LEDs that are disposed in LED openings of the reflective sheet. [Solution] A lighting device 10 includes: a plurality of LEDs 15 serving as backlight light sources; an LED substrate 11 mounted with the plurality of LEDs 15; a reflective sheet 12 having a plurality of LED openings 13 in which the plurality of LEDs 15 are disposed, respectively, and having a metal film on a surface of the reflective sheet 12 opposite to a surface of the reflective sheet 12 that faces the LED substrate 11; and a support 17 that supports the reflective sheet 12 at a higher position than a height of solder 16 firmly fixed to terminal areas of the LEDs 15 that face the LED substrate 11.

Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface of the light guide plate. A gap is present between light emitting surfaces of the LEDs and the light entering end surface of the light guide plate. Each LED includes a light emitting surface having a dimension in the thickness direction of the light guide plate smaller than a dimension of the light entering end surface in the thickness direction. Each LED is disposed such that the center of the light emitting surface is opposed to the center of the light entering end surface.

Abstract: A lighting device includes a casing, a light source, a light-collecting member, and a reflection member. The casing includes a light exiting portion. The light source is accommodated within the casing. The light-collecting member disposed in the light exiting portion. The light-collecting member includes unit light collectors each having long dimensions in a first direction and being arranged in a second direction perpendicular to the first direction. The reflecting member is disposed adjacent to the light source with respect to the light-collecting member in the light exiting portion. The reflecting member includes a light reflective portion and a light transmissive portion. The reflecting member includes a light source arrangement area including a section overlapping the light source. The light source arrangement area includes the light reflective portion with an area ratio larger than an area ratio of a light source non-arrangement area around the light reflective portion.

Abstract: A lighting device includes LEDs, a light guide plate, and a frame. The light guide plate includes a light guide plate hole portion passing through in a thickness direction, a light entering surface, and a light exiting surface. The frame surrounds the light guide plate. The frame includes an outer peripheral wall portion and an inner peripheral wall portion. The outer peripheral wall portion opposes an outer peripheral end face of the light guide plate. The inner peripheral wall portion inserted to the light guide plate hole portion opposes an inner peripheral end face of the light guide plate on an inner side of the light guide plate hole portion. The inner peripheral wall portion has a configuration in which the opposing surface has a lower light reflectivity than that of an opposing surface of the outer peripheral wall portion.

Abstract: [Object] To provide an illumination device that suppresses degradation of display quality by preventing damage of light source elements, a reflection sheet, and an optical sheet; and a display. [Solution] A backlight device 10 includes: an LED substrate 11; a plurality of LEDs 15 disposed adjacent to each other on the LED substrate 11; an optical member 24 disposed to face the LEDs 15; a reflection sheet 12 disposed on the LED substrate 11 and having a plurality of openings at which the LEDs 15 are disposed; and a support body 17 formed at least in a gap between the reflection sheet 12 and the LEDs 15, at at least one of the plurality of openings, the support body 17 projecting further than the LEDs 15 on a side opposite to the LED substrate 11 and supporting the optical member 24.

Abstract: A backlight device (illumination device) is provided with LEDs (light sources) and a light-controlling sheet (light-controlling member) that is arranged at the exit side of the outgoing-light path of the LEDs. The light-controlling sheet has a light-transmitting layer that transmits light, first light-shielding sections that are arranged at the LED side of the light-transmitting layer, and a second light-shielding section that is arranged at the opposite side to the first light-shielding section side of the light-transmitting layer. The first light-shielding sections and the second light-shielding section are repeatedly arranged side-by-side in an alternating manner.

Abstract: [Object] To provide a lighting device and a display device that can prevent contact between a reflective sheet having a metal film and solder firmly fixed to terminal areas of LEDs that are disposed in LED openings of the reflective sheet. [Solution] A lighting device 10 includes: a plurality of LEDs 15 serving as backlight light sources; an LED substrate 11 mounted with the plurality of LEDs 15; a reflective sheet 12 having a plurality of LED openings 13 in which the plurality of LEDs 15 are disposed, respectively, and having a metal film on a surface of the reflective sheet 12 opposite to a surface of the reflective sheet 12 that faces the LED substrate 11; and a support 17 that supports the reflective sheet 12 at a higher position than a height of solder 16 firmly fixed to terminal areas of the LEDs 15 that face the LED substrate 11.

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: 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 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: 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 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.