A light-diffusion member (7) includes: a substrate (39) having light-transmitting properties; a light-diffusion portion (40) on a face of the substrate (39) facing a display medium (6); and a light-blocking layer (41) on a part of the face of the substrate (39) facing the display medium (6) other than where the light-diffusion portion (40) is provided. The light-diffusion portion (40) includes: a light-emitting end face (40a) in contact with the substrate (39); and a light-incident end face (40b) facing, and being larger in area than, the light-emitting end face (40a). The adhesive layer (42) adheres to light-incident end face (40a) and partly (42a) encroaches into a space (43) between the light-diffusion portion (40) and light-blocking layer (41).

Provided are a multilayered-coating system and a method of manufacturing the same. The multi-layered coating system includes: a layer 1 including a plurality of spherical voids with a radius a.sub.1 that are randomly distributed and separated from one another and a filler material with a refractive index n.sub.1 that is disposed in a space between the spherical voids; and subsequent layers expressed as the following word-equation, “a layer i located above a layer i−1 and including a plurality of spherical voids with a radius a.sub.i that are randomly distributed and separated from one another, and a filler material with a refractive index n.sub.i, the filler material disposed in a space between the spherical voids where i is an integer greater than 1”.

The present invention relates to a light extraction substrate for an organic light-emitting element, a method for manufacturing the same and an organic light-emitting element including the same, which can shed its dependence on light extraction in a specific wavelength range appearing in a light determining pattern of a cyclical form and induce light extraction in a broader wavelength range. To this end, the present invention relates to a light extraction substrate for an organic light-emitting element, a method for manufacturing the same and an organic light-emitting element including the same. The light extraction substrate is disposed on one surface through which light emitted from the organic light-emitting element is outwardly released and comprises: a base substrate; a light determining pattern formed on the base substrate; and a leveling layer formed on the light determining pattern and having a surface contacting the organic light-emitting element, wherein a plurality of air voids having a random shape and size are irregularly distributed on an interface between the light determining pattern and the leveling layer.

Provided are an optical diffusion film composed of a single layer, for which the optical diffusion incident angle region can be effectively expanded, and even when the incident angle of incident light is varied within the optical diffusion incident angle region, changes in the optical diffusion characteristics can be effectively suppressed; and a method for manufacturing the optical diffusion film.

Disclosed is an optical diffusion film having, inside the film, a single optical diffusion layer having a first internal structure and a second internal structure, each of which include a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index, sequentially from the lower part along the film thickness direction, and the regions having a relatively high refractive index in the first internal structure have a bent section at an intermediate point along the film thickness direction.

A light diffusion plate is configured to be assembled with a blue light source module having blue Mini LEDs to form a white light backlight module. The light diffusion plate is added with organic dyes with light-emission wavelength of 490-650 nm in order to convert the blue light into white light. The light diffusion plate is made by a foaming extrusion process and contains a plurality of micro-bubbles with a size of 60-400 μm and a weight-reduction ratio of 15-25% for improving the uniformity of white light and resolving the MURA problem. The size of micro-bubbles is controlled by reducing the temperature of at the exit end of the T-die head, such that the wavelength of the white light emitted from the light diffusion plate can be narrower to achieve the effect of wider color gamut display.

Disclosed is a method for manufacturing a visibility improvement sheet that comprises light absorbing portions having a substantially rectangular cross-section and can realize a high contrast while maintaining a view angle. The visibility improvement sheet is manufactured by forming light transparent portions juxtaposed to each other at predetermined intervals to form grooves having a substantially rectangular cross section juxtaposed to each other between the light transparent portions, filling the grooves with an ink composition comprising a transparent ionizing radiation curable resin composition and colored fine particles, and curing the ink composition in such a state that fine air bubbles are randomly dispersed in the filled ink composition.

A system and method are provided for forming energy filter layers or shutter components, including energy scattering layers that are actively electrically switchable. The energy filters or shutter components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers. Refractive indices of transparent particles, and the transparent matrices in which the particles are fixed, are tunable according to the applied electric fields. The energy scattering layers may conceal a sensor such as a camera or photovoltaic cell.

The present invention is directed to an optical member including: a first layer that includes a first region having a refractive index n.sub.1 and a second region having a refractive index n.sub.3; and a second layer disposed on a first main surface of the first layer so as to be in contact with the first region and the second region, the second layer having a refractive index n.sub.2. The first layer includes a plurality of said second regions adjoining the first region along a planar direction of the first layer; the plurality of second regions constitute a geometric pattern; and n.sub.1 to n.sub.3 satisfy the relationship n1<n3<n2. When an optical member according to the present invention is integrated with a lightguide in use, excellent light extraction function is exhibited and leakage of light due to light scattering is suppressed, while attaining good mechanical strength at the same time.

An optical film having a first surface and a second surface is provided. The second surface is adjacent to the first surface and has a first area connected to the first surface, a second area connected to the first area, and a third area connected to the second area. The optical film includes a first micro-structure disposed on the first surface and a second micro-structure disposed in the first area and the second area. The first micro-structure includes a plurality of bubble structures. The second micro-structure includes a plurality of protrusions and recesses.

A system and method are provided for forming body structures including energy filters/shutter components, including energy/light directing/scattering layers that are actively electrically switchable. The filters or components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers, including electric fields generated between a pair of transparent electrodes sandwiching an energy scattering layer. Refractive indices of transparent particles, and the transparent matrices in which the particles are fixed, are tunable according to the applied electric fields.