A low reflectance film with a second reflectance (50% or lower) lower than a first reflectance is formed between an optical directional coupler and a first-layer wiring with the first reflectance. Thus, even when the first-layer wiring is formed above the optical directional coupler, the influence of the light reflected by the first-layer wiring on the optical signal propagating through the first optical waveguide and the second optical waveguide of the optical directional coupler can be reduced. Accordingly, the first-layer wiring can be arranged above the optical directional coupler, and the restriction on the layout of the first-layer wiring is relaxed.

A display device according to one aspect of the present invention includes a liquid crystal panel having light-absorbing properties on at least one portion of an outer peripheral surface, an illumination device illuminating the liquid crystal panel with light, a first frame supporting the liquid crystal panel and illumination device and having light-absorbing properties, a liquid crystal panel, and a second friend housing the illumination device and first frame and having light-absorbing properties on at least a portion of a surface facing the first frame.

A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.

In the display device according to an embodiment, optical functional elements such as a prism sheet and a light diffusion layer are combined, and an optical composite sheet to which a light absorbing layer that selectively absorbs light of a specific wavelength band is inserted is used, so that the color gamut can be enhanced as compared with the prior art.

According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

An array substrate, a manufacturing method thereof and a display device are disclosed. The array substrate includes: a substrate; a plurality of pixel units provided on the substrate, each of the pixel units including a plurality of functional layers; and a light shielding assembly arranged between adjacent pixel units. The light shielding assembly including: a light shielding layer; a light absorption layer overlaid on the light shielding layer; and an antireflection layer overlaid on the light absorption layer. By means of providing an antireflection layer the light shielding assembly, it can decrease the reflection of the external ambient light on the light shielding assembly, thereby improving the display contrast and the image display quality.

A display apparatus includes a blue light blocking layer to block a blue light which is not converted by a color conversion layer, and a reflection preventing layer over the blue light blocking layer to prevent reflection of external light incident thereon.

A liquid crystal panel and a liquid crystal display are disclosed. Stray backlights which are irradiated into areas of gate electrode circuits are absorbed by adding an anisotropic absorbing material into a mixture for forming a color filter layer and then controlling orientation of the anisotropic absorbing material to reduce the stray backlights entering into the gate electrode circuits, so that a better shading effect for the gate electrode circuits is provided.

A wide viewing angle liquid crystal display includes color filters having a quantum dot and scattering particles and liquid crystal layer disposed in a microcavity, a distance between the color filter and the liquid crystal layer being sized to minimize display deterioration due to parallax.

Liquid crystal modulator optical devices and more specifically shutters and smart windows are presented. The liquid crystal modulator devices are characterized by a reduced polymer content which is eliminated from the material composition of the liquid crystal layer and characterized by non-uniform electrode structures in the liquid crystal structure configured to generate spatially non-uniform electric fields and therefore non-uniform molecular reorientation of liquid crystal molecules. This arrangement advantageously makes light scattering electrically controllable.