35results about How to "Suppresses color change" patented technology

An image forming apparatus is provided that forms an image using developers of different tone and the same hue. When forming images for measurement for density control, the apparatus performs density control by forming a greater number of density levels of an image for measurement developed using a light developer than the number of density levels of an image for measurement developed using a dark developer. Thus, even if the amount of applied light developer may fluctuate, the fluctuation can be compensated to prevent the occurrence of pseudo-contours that lower image quality.

A non-transitory computer-readable storage medium storing an image processing program causing a computer to execute an image processing on image data to be processed, the image processing program including an obtaining step obtaining the image data, a gradation conversion processing step performing gradation conversion processing on the image data at an intermediate part of gradation according to input/output characteristics having characteristics to which characteristics to reduce a contrast are added, and a correcting step making a correction to enhance a local contrast indicative of contrast at a local part of an image for the image data subjected to the gradation conversion processing by using a gain curve in which a degree of enhancement changes in accordance with luminance information of a pixel to be processed, and thus, bright and dark part gradations are improved while suppressing a change in a hue and color saturation as well as maintaining an apparent contrast.

A liquid crystal display device according to the present invention includes a liquid crystal panel, a backlight source provided on a rear surface of the liquid crystal panel, for irradiating the liquid crystal panel with white light, and an optical film provided between the liquid crystal panel and the backlight source, in which the optical film includes a base material which passes the white light irradiated from the backlight source, a colored layer partially provided on one surface of the base material at the side of the liquid crystal, panel, and a reflective layer provided on another surface of the base material at the side of the backlight source opposite to the colored layer, for reflecting the white light.

The present invention provides an N-vinyl lactam polymer that is less likely to be colored (yellowing) even at high temperatures to maintain its color tone. The present invention provides an N-vinyl lactam polymer comprising a structural unit derived from an N-vinyl lactam monomer, the N-vinyl lactam polymer including a structural unit that has at least one of a hypophosphorous group and a group of hypophosphorous acid metal salt at a main chain terminal.

The invention relates to a developer, a developer storage body, a developing device and an image forming apparatus. The developer including developer particles. Each developer particle includes a binder resin, a brilliant pigment whose principal component is aluminum, a yellow pigment, a magenta pigment, a reddish-orange fluorescent dye, and a yellow fluorescent dye. When an average particle diameter of the brilliant pigments included in the developer particles is expressed as D ([mu]m), a number proportion of the developer particles having particle diameters in a range from 4 [mu]m to 1.2*D [mu]m in the whole developer particles is less than or equal to 4%.

The present invention provides the following: a flexible printed substrate for mounting a light emitting component with which, even if the substrate is made thin to show flexibility, the transmission of light rays from the mounted light emitting component is suppressed and changes in the color of light due to the impact of light emitting components of different colors are suppressed; and a flexible printed substrate mounted with a light emitting element, in which a light emitting component is mounted on the flexible printed substrate for mounting a light emitting component. The present invention provides a flexible printed substrate for mounting a light emitting component, on which a metal foil is layered in a circuit pattern onto at least one side of an insulative base material with an adhesive resin interposed therebetween, and that is characterized in that the adhesive resin layer contains light-blocking particles and has a light transmission rate of 65% or less for wavelengths in the range 380-750 nm.

Provided is a stainless steel material which contains an antibacterial component Cu, has excellent antibacterial and antiviral properties, and has a stainless steel color tone. The present invention is a stainless steel material having antibacterial and antiviral properties, in which a surface (1) and a surface layer (2) directly below the surface of the stainless steel material include a Cu-concentrated region (3) that follows grain boundaries and has a Cu (copper) concentration higher than the average Cu concentration of a base material, and the Cu-concentrated region (3) has a concentration higher than the average Cu concentration by 5 mass% or more. The stainless steel material has Cu grain boundary layers (6) extending continuously from the surface (1) of the stainless steel material at a depth of 10 [mu] m to 200 [mu] m, and the average number of the Cu grain boundary layers (6) is 2.0 or more per 100 [mu] m distance parallel to the surface in a cross-section orthogonal to the surface of the stainless steel material. The chromaticity index a * of the surface in the CIE Lab color space is 0-3.0 (inclusive).