31results about How to "Moiré suppression" patented technology

A light condensing filter has plural prisms formed on a surface of a flat substrate and on the opposite surface to the surface, and light from a light source is condensed by the plural prisms, wherein the plural prisms formed on the surface are designed in a linear shape extending in a specific direction on the surface and arranged in a direction perpendicular to the specific direction, the plural prisms formed on the opposite surface are designed in a linear shape extending in the direction perpendicular to the specific direction on the opposite surface and arranged in the specific direction, and the plural prisms formed on the surface and the plural prisms formed on the opposite surface are irregularly arranged.

The present invention provides a liquid crystal display device in which the generation of moiré, which occurs when a voltage is applied, is suppressed in a liquid crystal mode in which a vertical alignment type liquid crystal is driven using at least one pair of comb-shaped electrodes. The liquid crystal display device of the present invention includes: a liquid crystal display panel having a liquid crystal layer and a pair of substrates sandwiching the liquid crystal layer; and a backlight unit disposed on the back side of the liquid crystal display panel, wherein one of the pair of substrates is The substrate has a pair of comb-shaped electrodes whose comb teeth are alternately meshed with each other. The above-mentioned liquid crystal layer contains liquid crystal molecules with positive dielectric constant anisotropy. Orientate in a direction perpendicular to the surface of one of the substrates, the above-mentioned backlight unit has an optical sheet with a plurality of fold lines parallel to each other on the surface, and the pitch width of the pair of comb-shaped electrodes is the same as the pitch width of the fold lines of the above-mentioned optical sheet is a non-integer multiple relationship.

The invention seeks to provide a transmissive screen that can be manufactured at a low cost and show uniform diffusion and moire-free images over the entire screen, and to provide a rear projector provided with such a superior transmissive screen. A transmissive screen includes a Fresnel lens portion having Fresnel-lens components on its light-exiting face and a lens array facing the light-exiting face of the Fresnel lens portion and having many lenses on its light-incident face. The transmissive screen further includes separating means for separating the Fresnel lens portion from the lens array portion at least in the periphery of the screen. A rear projector includes such a superior transmissive screen.

A lens array sheet includes a lens layer having a lens surface on which a plurality of lenses are formed in an array, a light reflection layer arranged at an opposite side to the lens surface of the lens layer and having an opening within a light focusing region in the lenses to transmit light, for reflecting light at a site other than the opening, and a light diffusion layer arranged between the lens layer and the light reflection layer, for diffusing light, which passes through the opening and is directed toward the lens layer.

An illuminating device includes a light source, an optical waveguide that emits light from the light source through an emission surface thereof, and a prism sheet that is provided on the emission surface side of the optical waveguide. In the illuminating device, the following relationship is established between a refractive index x of the prism sheet and an apex angle y of a prism: y=107.86x−140.43+M (−4≦M≦4).

A liquid crystal display device includes a light source, at least one optical member having a periodic structure of 75 μm or more, pixels disposed in a matrix state, and at least one optical member with light scattering properties.

The problem addressed by the present invention lies in providing a touch panel capable of suppressing the occurrence of moire without causing graining to occur, and a display device onto which the touch panel has been stacked. In order to solve this problem, a touch panel is provided with a first electrically conductive layer including a plurality of conductor wires, and a second electrically conductive layer including a plurality of conductor wires, wherein: in a plan view in a state in which the first electrically conductive layer and the second electrically conductive layer are stacked on one another, a pattern of continuously arranged virtual quadrilaterals VS, which are virtual quadrilaterals having the same shape, formed by the first conductor wires and the second conductor wires, isdefined as a reference pattern; in the first electrically conductive layer and the second electrically conductive layer respectively, parts where the conductor wires intersect constitute less than 10% of virtual vertices VP, which are the parts corresponding to all virtual vertices of the virtual quadrilaterals VS; and in a plan view, each actual vertex CP, which is a vertex formed by the two conductor wires, is disposed in a position displaced by an amount of displacement at least equal to 1% and less than 50% of the length of a pitch WP, which is the length of one side of the virtual quadrilateral VS, from the virtual vertex VP.

The present invention provides an image processing device capable of suppressing occurrence of moiré fringes or false colors when performing color display by sub-pixels of four colors. The image processing device has a filter processing unit. The filter processing unit limits the frequency bands of the X-direction and Y-direction frequencies of the signals R, G, B, and W based on the positional relationship between the sub-pixels corresponding to the respective colors and other sub-pixels. Furthermore, the filter processing unit adjusts the frequency response of the image signal of each color according to the amplitude of the high-frequency component of the image signal corresponding to each other color.

Provided is a prism sheet which has high effects of suppressing Moiré fringes, high front luminance and reduced number of components when it is used as a prism sheet for a backlight unit for a liquid crystal display device. The prism sheet has a prism row having ridges formed in parallel to each other at equivalent intervals on one surface and a light diffusion layer containing porous particles on the other surface. The prism sheet preferably has the prism row on one surface and the light diffusion layer on the other surface by having a light-transmissive substrate in between.