The liquid crystal display device includes an edge backlight including a transparent light guide plate and light-emitting elements of multiple colors that are disposed such that the light-emitting elements of multiple colors are adjacent to each other, a dimming liquid crystal layer that is disposed such that the dimming liquid crystal layer overlaps at least an end portion of the transparent light guide plate that faces the light-emitting elements of multiple colors in a plan view and that has a degree of haze that increases or decreases by applying a voltage, and a transmissive liquid crystal display panel that includes pixels. With the backlight on, the dimming liquid crystal layer is in a diffusion state, and the liquid crystal display panel performs the color display. With the backlight off, the dimming liquid crystal layer is in a transmission state, and the liquid crystal display panel performs the transparent display.

A display device includes a display panel configured to display an image, a first backlight unit that is disposed under the display panel and outputs first light, and a second backlight unit that is positioned between the display panel and the first backlight unit and outputs second light, wherein the first backlight unit includes a first light guide plate having first patterns protruding or recessed from a rear surface of the first light guide plate, the second backlight unit includes a second light guide plate having second patterns protruding from a rear surface of the second light guide plate, and the second patterns have an asymmetric pyramid shape.

A lighting apparatus includes a flexible elongate substrate, a supply rail disposed on one surface of the substrate, and first and second ground rails disposed on the other surface. Groups of SSL packages are disposed parallel to the longitudinal axis of the substrate and between the first and second ground rails. Each package has SSL elements disposed on a first side and pairs of contact pads disposed on a second side. The SSL packages in each group are serially coupled from the first package to the last package of the group. One contact pad of each pair of the contact pads of the first package of each group is coupled to the supply rail through the substrate, one contact pad of a first pair of the pairs of contact pads of the last package of each group is coupled to the first ground rail at the first surface of the substrate, and one contact pad of a second pair of the pairs of contact pads of the last package of each group is coupled to the second ground rail at the first surface of the substrate.

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source; the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective layer towards the plastic layer.

A lighting device including: a light guide, a reflecting sheet and a first prism sheet, in which a first white LED, a second white LED and a third white LED are disposed in a same interval on a first side surface and on a second side surface, which opposes to the first side surface, a first prism array extending in a first direction and arranged in a second direction is formed on the major surface, a second prism array extending in a second direction and arranged in a first direction is formed on the back surface, the reflecting sheet is disposed under the back surface of the light guide, the first prism sheet is disposed on the major surface of the light guide, and a third prism array, extending in the second direction and arranged in the first direction is formed on the back surface of the first prism sheet.

The purpose of the present invention is to realize a lighting device of thin, low power consumption and high emitting efficiency. A concrete structure of the inventions is as follows. A lighting device including a first light guide and a second light guide stacked on the first light guide, a reflecting sheet disposed under the first light guide, and a prism sheet disposed on the first light guide, in which a concentric first prism array is formed on the prism sheet, a plurality of first LEDs are disposed along a circumferential direction of a side wall of a first hole of the first light guide, a plurality of second LEDs are disposed along a circumferential direction of a side wall of a second hole of the second light guide, and the plurality of the first LEDs and the plurality of the second LEDs are displaced in azimuth direction.

A light emitting device comprises a lightguide formed from a film having an array of coupling lightguides in the form of strips extending from a lightguide region of the film, the coupling lightguides are folded and stacked, and a light source is positioned to emit light into edges of the stacked coupling lightguides to propagate into a light mixing region and then into a light emitting region. The light mixing region comprises a plurality of reflecting surfaces that reflect a portion of the light from the coupling lightguides toward one or more of the lateral edges of the film prior to exiting the film in the light emitting region. The plurality of reflecting surfaces may a light transmitting material printed in the form of lines on the surface of the film and may improve the uniformity of light emitted from the light emitting region.

A backlight module and a display device are disclosed. The backlight module includes a light guide structure and a light source. The light source includes a first light-emitting assembly and a second light-emitting assembly. A light receiving structure is disposed behind and corresponding to a position of the first light-emitting assembly and is configured to concentrate light emitted by the first light-emitting assembly within a predetermined angle range so that the light is directed outward from the light receiving structure. The light guide structure is disposed behind and corresponding to a position of the light receiving structure and is configured to direct outward the light concentrated in the light receiving structure through specular reflection.

The purpose of the present invention is to realize a lighting device of thin, low power consumption and high emitting efficiency. A concrete structure of the inventions is as follows. A lighting device including a first light guide and a second light guide stacked on the first light guide, a reflecting sheet disposed under the first light guide, and a prism sheet disposed on the first light guide, in which a concentric first prism array is formed on the prism sheet, a plurality of first LEDs are disposed along a circumferential direction of a side wall of a first hole of the first light guide, a plurality of second LEDs are disposed along a circumferential direction of a side wall of a second hole of the second light guide, and the plurality of the first LEDs and the plurality of the second LEDs are displaced in azimuth direction.

A light emitting module includes a light guide plate including a first face, a second face opposing the first face, and a through part penetrating between the first face and the second face, a light emitting device disposed in the through part on a second face side, a light transmissive member disposed on the light emitting device in the through hole on a first face side and between the light emitting device and a lateral wall of the through part, and a first light reflecting member disposed between an upper face of the light emitting device and the light transmissive member while being in contact with the upper face of the light emitting device.