According to one embodiment, an illumination device comprises a plurality of light emitting elements that are disposed on a main surface of a wiring board, a light diffusion distance maintaining layer, a wavelength conversion layer, and a prism sheet, wherein the main surface of the wiring board is divided into a plurality of segment regions, n (n>1) light emitting elements are provided in each of the segment regions, the light emitting elements are independently driven in units of the segment regions, and a thickness of the light diffusion distance maintaining layer is ½ times or more a pitch of the segment regions adjacent to each other.

The present disclosure provides an anti-peep film and a manufacturing method thereof, and a display module. The anti-peep film includes a plurality of transmission areas and a plurality of anti-peep areas, and the plurality of transmission areas and the plurality of anti-peep areas are alternately arranged in a direction perpendicular to a thickness direction of the anti-peep film. At least one anti-peep area of the plurality of anti-peep areas has a set structure, and the set structure enables that light incident on the at least one anti-peep area from a first side in the thickness direction of the anti-peep film is reflected back to the first side through the at least one anti-peep area.

An optical film for a back light unit that includes an array of light emitting diodes. The optical film includes a substrate, and a plurality of regions of spatially modulated microstructures on at least one side of the substrate. The spatially modulated microstructures have different sizes and/or shapes configured to create a gradient structure within each region. The gradient structure within each region is constructed and arranged to cause more spreading of light when positioned directly above an individual light emitting diode and less spreading of light at locations not directly above an individual light emitting diode. Within the back light unit, the gradient structure converts light beams emitted by the respective light emitting diode at different angles into a more uniform and higher on-axis luminance upon exiting the back light unit.

A display device includes: a plurality of backlight modules, where each backlight module includes a plurality of light sources capable of emitting light in at least three different colors; a color-filter-less liquid crystal display module including a plurality of pixel units arranged in an array form and a plurality of scanning lines coupled to the pixel units; where the plurality of backlight modules are arranged in parallel with the liquid crystal display module; where an orthogonal projection of each backlight module onto a plane where the liquid crystal display module is located corresponds to at least two rows of pixel units, where the pixel units in one row are along an length extension direction of each scanning line; and a driving circuit coupled to each backlight module and configured to apply a backlight driving signal to each backlight module.

A display apparatus includes: a display panel; a light source module provided behind the display panel, the light source module including a board and a light source provided on a rear surface of the board; a rear chassis covering a rear surface of the light source module; and a supporter extending between the board and the rear chassis, the supporter being electrically conductive.

A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that η2 is smaller than η1, where, in plan view, L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.

A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that θ2 is smaller than θ1, where L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface of the light-emitting element and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.

A light emitting device includes a substrate, a plurality of light sources, a partitioning member and a diffuser sheet. The light sources are disposed on an upper surface of the substrate. The partitioning member is disposed on the upper surface of the substrate and including top parts. The partitioning member is reflective. The diffuser sheet is in contact with the top parts of the partitioning member.

A backlight unit which includes a light guiding layer having an incident surface on which light is incident and an exit surface from which light is emitted, a light source disposed on the incident surface of the light guiding layer and configured to generate the light, a low refraction layer disposed on the exit surface of the light guiding layer, a color control layer disposed on the low refraction layer, and a protection layer disposed on the color control layer. The protection layer includes a resin composition including a first repeating unit represented by Formula 1: ##STR00001##

The present invention relates to a prism layer (10) superimposed on the front surface of a display (20), in which: a plurality of prism parts (11) are vertically arranged; the prism parts (11) each have an upper slope surface (12) and a lower slope surface (13), and have a corner part (14) which has a forward protruding triangular shape in a cross-sectional view; the angle θ1 of the upper slope surface (12) with respect to a rear surface (15) is set to 60° to 120°, and the angle θ2 of the lower slope surface (13) with respect to the rear surface (15) is set to 5° to 45°; and the pitch Pp of a groove part (16) between the prism parts (11) is made smaller than the vertical pitch Pd of a pixel (21) of the display (20).