A pseudo random dot pattern that is created easily by a geometric approach. The pseudo random dot pattern includes a first oblique lattice region and a second oblique lattice region repeatedly disposed at predetermined intervals in a y direction on an xy plane, a plurality of dot arrangement axes a1 on which dots are disposed at a predetermined pitch in an x direction being arranged in a b direction obliquely crossing the x direction at an angle α in the first oblique lattice region, a plurality of dot arrangement axes a2 on which dots are disposed at a predetermined pitch in the x direction being arranged in a c direction reverse to the b direction with respect to the x direction in the second oblique lattice region.

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 apparatus includes an image generator including a spatial light modulator that is configured to perform phase modulation on to-be-modulated image light to generate modulated first image light and modulated second image light, and an image display module that is disposed on a light emitting side of the image generator. The image display module includes a first diffusing screen and a second diffusing screen. The first image light is projected on the first diffusing screen and the second image light is projected on the second diffusing screen. A spatial position of the first diffusing screen is different from a spatial position of the second diffusing screen.

A light emitting diode display panel may comprise a substrate, a plurality of light emitting diodes located over the substrate, and an optical assembly located over the plurality of light emitting diodes. The optical assembly may include a lens array and a diffuser. An inner surface of the lens array may define a plurality of inner curves.

A laminate used under an environment irradiated with external light includes a light diffusion control film having an internal structure in the film. The internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The laminate further includes an ultraviolet absorbing layer located further on the external light incident side than the light diffusion control film. The light diffusion control film contains a hindered amine-based compound.

A mirror assembly can include a housing, a mirror, and a light source. In some embodiments, the mirror comprises one or more adjustable sections. In certain embodiments, the mirror includes a light column configured to emit a substantially constant amount of light along a periphery of a mirror section. In some embodiments, the light column can produce various color temperatures. In some embodiments, the mirror assembly comprises a capacitive touch sensor that allows control of one or more features of the light emitted from the light source. In some embodiments, the mirror assembly includes a sensor assembly. The sensor assembly can be configured control on/off settings and other features of the emitted light.

A viewing angle diffusion film and a display panel are disclosed. The viewing angle diffusion film includes a substrate and a refractive protrusion disposed on a surface of the substrate. The refractive protrusion includes a first side surface away from a center of the substrate, and the first side surface includes a first curved surface.

Provided are a decorative film including a reflective layer which consists of a dielectric multi-layer film and develops a color due to an optical interference or a structural color, in which the dielectric multi-layer film has a plurality of regions having different reflection performances in an in-plane direction, at least one of the plurality of regions is a region having a specular reflectivity, and at least another one of the plurality of regions is a region having a diffuse reflectivity; and a molded product and an electronic device using the decorative film.

There is described herein a diffuser assembly comprising a leaf spring, diffuser and at least one actuator. The leaf spring is arranged as a rectangular frame having a width, x, and height, y. The diffuser is suspended by the frame such as within the frame. The at least one actuator arranged to move, such as translate, the diffuser. The assembly is arranged such that the leaf spring provides in-plane (x-y plane) stiffness, k.sub.x and k.sub.y, less than the out-of-plane (z-direction) stiffness, k.sub.z.

An apparatus and method is provided including: modulating or modifying light output by one or more light sources, wherein the light output is for use in rendering content in a first direction using a display, wherein the display has at least one curved portion, wherein the modulating or modifying of the light output by the one or more light sources modulates or modifies said light within said at least one curved portion such that said content is rendered in the first direction.