Abstract: Disclosed is a structural color display including: (a) a pattern forming member which forms a plurality of cells each lined up in two dimension; and (b) a light transmissive image display sheet comprising a color showing layer which shows a structural color, the light transmissive image display sheet being faced to the pattern forming member, wherein each cell is independently controlled to reflect a light from a light source corresponding to an image pattern to be displayed, provided that the reflected light is made to enter in the image display sheet from a side facing the pattern forming member by a predetermined incident angle corresponding to the cell. The pattern image forming member comprises the element having a plurality of microscopic mirrors arranged in a rectangular array and being individually rotated.

Abstract: Display particles for use in image display devices with display particles sealed in a powdery form in the space between two substrates, at least one of which is transparent, that display an image while the display particles are moved as electric field is generated between the substrates, characterized in that the display particles contain at least base particles containing at least a resin and a colorant and inorganic fine particles added to the base particle; externally and a separation amount A of the inorganic fine particles having a primary particle size of 5 to 60 nm separated from the display particles when the particles are provided with an ultrasonic energy of 60 ?A for 1 minute in aqueous polyoxyethylphenylether solution is 0.1 to 2.5 wt % with respect to the base particles, and an image display device installed with the display particles for image display devices.

Abstract: Disclosed are white particles for an image display device which includes: (i) a pair of substrates facing each other, provided that at least one of the substrates is transparent; and (ii) the white particles enclosed in a gap between the substrates, with which an image is displayed through migration of the white particles by generating an electric field between the substrates, wherein each of the white particles contains: (a) a core particles containing an inorganic oxide having a refractive index of 2.0 or more in an amount of 80 to 99 weight % based on the total weight of the core particle; and (b) a resin layer having a thickness of 10 to 1000 nm on a surface of the core particle.

Abstract: An image display device 10, having two substrates 11 and 12, at least one of which is transparent; and display particles 21 and 22 enclosed in the powder form between the substrates, the display particles being moved under an electric field generated between the substrates so that an image is displayed, wherein metal oxide fine particles 1 surface-treated with at least one processing agent selected from the group consisting of silane-coupling agents and silicone oils are adhered to at least one substrate surface 20a and/or 20b of the surfaces in contact with the display particles in a gap 18 between the substrates.

Abstract: A color particle is disclosed, comprising a color-exhibitive piece which comprises microparticles for structural color and a matrix and is dispersed in a binder resin, wherein the color particle meets the following requirement: 1.5?A/B?5.0 wherein A is a major axis diameter of the color particle and B is a minor axis diameter of the color particle; and an angle of a longitudinal direction of the color-exhibitive piece to a major axis direction of the color particle falls within a range of ±20 degrees.

Abstract: An image display device comprising: (i) a pair of substrates facing each other; and (ii) particles placed in a gap between the substrates, wherein at least one of the substrates is a resin substrate which is transparent and exhibits a light transmittance of 50% or more at a wavelength of 300 nm.

Abstract: Disclosed is a structural color display including: (a) a pattern forming member which forms a plurality of cells each lined up in two dimension; and (b) a light transmissive image display sheet comprising a color showing layer which shows a structural color, the light transmissive image display sheet being laminated on the pattern forming member, wherein each of the cells is independently controlled to switch to a light reflective state or to a light absorptive state corresponding to an image pattern to be displayed, provided that the light absorptive state is a state in which a light which enters in the cell through the image display sheet is absorbed; and the light reflective state is a state in which a light which enters in the cell through the image display sheet is reflected and the reflected light is made to enter in a region of the image display sheet corresponding to the cell.

Abstract: An image display apparatus comprising two substrates at least one of which is transparent, ribs for maintaining a distance between the substrates and display particles that are sealed between the substrates in a powder state, and displaying an image by generating an electric field between the substrates so that the display particles are moved, wherein of contact faces to the display particles in the gap between the substrates, at least the contact faces of ribs to the display particles have an arithmetic average roughness Ra in a range from 0.01 to 0.20 ?m and an average interval Sm of irregularities in a range from 0.5 to 2.5 ?m.

Abstract: Display particles that are used for an image display apparatus in which the display particles are sealed between two substrates at least one of which is transparent, and by generating an electric field between the substrates, the display particles are moved so that an image is displayed, wherein the display particles include positively chargeable display particles and negatively chargeable display particles, and the positively chargeable display particles and the negatively chargeable display particles are formed by allowing inorganic fine particles made of the same constituent materials to be adhered to the surfaces of base particles, and an image display apparatus provided with the display particles.

Abstract: Disclosed is a method for forming color image, in which one of the yellow, magenta, cyan and black toners is a high water content toner, and one of the yellow, magenta, cyan and black toners is a toner low water content toner, water content of the high water content toner is 1.2 to 2.5% by weight based on the high water content toner, and water content of the low water content toner is 0.1 to 1.2% by weight based on the low water content toner.

Abstract: A method of producing a particle array is disclosed, comprising allowing monodisperse particles to be arrayed in an aqueous medium containing a monomer to form a colloidal crystal exhibiting a structural color and then polymerizing the monomer to form a polymer.

Abstract: Disclosed is an image display device comprising: (i) a pair of substrates facing each other, provided that one of the substrates is transparent; and (ii) charged particles placed in a gap between the substrates, wherein each of the substrates has a layer containing a compound having a silicone structure in the molecule on a surface of the substrates faced with another electrode.

Abstract: An object of the present invention is to provide a color image forming method capable of forming full color images desired for a precise reproduction to the color tone of high resolution and a halftone in high-end apparatuses. Disclosed is a color image forming method employing 6 kinds of chromatic color toners and a black toner, each toner containing particles having a median particle diameter (D50) of 3-7 ?m in terms of volume, a decline starting temperature of a storage elastic modulus of 10-40° C., a temperature of 70-130° C. in the storage elastic modulus range of 103-104 Pa, and a primary diameter of 40-800 nm.

Abstract: Provided is a toner for an electrostatic charge image development having toner particles which contain: a binder resin; a colorant; and a compound represented by Formula (1) in an amount of 0.1 to 65 ppm based on the total weight of the toner particles: wherein R1 and R2 each respectively represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an aryl group.

Abstract: An image display device 10, having two substrates 11 and 12, at least one of which is transparent; and display particles 21 and 22 enclosed in the powder form between the substrates, the display particles being moved under an electric field generated between the substrates so that an image is displayed, wherein metal oxide fine particles 1 surface-treated with at least one processing agent selected from the group consisting of silane-coupling agents and silicone oils are adhered to at least one substrate surface 20a and/or 20b of the surfaces in contact with the display particles in a gap 18 between the substrates.

Abstract: Display particles, which are used for an image display apparatus having a structure in which the display particles in a powdered state are sealed between two substrates at least one of which is transparent, and by generating an electric field between the substrates, the display particles are moved so that an image is displayed, comprising: base particles A containing at least a resin and a colorant, and having a volume-average particle size D1 of 1 to 50 ?m; resin fine particles B being externally added to the base particles, and having an average primary particle size D2 of 30 to 250 nm; and inorganic fine particles C being externally added to the base particles, and having an average primary particle size D3 of 5 to 30 nm, wherein the display particles for an image display apparatus are designed so that D1, D2 and D3 satisfy 10?D1/D2?1000 and 2?D2/D3?50, and an image display apparatus provided with such particles for an image display apparatus.

Abstract: Provided is a display member containing: an display layer which exhibits a structural color and contains spherical bodies and a matrix; and a reflective interface which reflects a light transmitting through the display layer, wherein the reflective interface is made between the display layer and a reflective interface forming layer which is provided in contact with the display layer; and a refractive index of the spherical bodies na, a refractive index of the matrix nb and a refractive index of the reflective interface forming layer nc satisfy the following Formulas (1) and (2): 0.35<nc/na<1.00 ??Formula (1) 0.35<nc/nb<1.00.

Abstract: An image display medium is disclosed, which medium includes a pair of substrates each having an electrode and colored particles between the pair of substrates, and the colored particles have an absolute electric charge of 0.5 to 4.0 ?C/g.

Abstract: An image display device comprising: (i) a pair of substrates facing each other; and (ii) particles placed in a gap between the substrates, wherein at least one of the substrates is a resin substrate which is transparent and exhibits a light transmittance of 50% or more at a wavelength of 300 nm.

Abstract: Disclosed is a structural color display including: (a) a pattern forming member which forms a plurality of cells each lined up in two dimension; and (b) a light transmissive image display sheet comprising a color showing layer which shows a structural color, the light transmissive image display sheet being laminated on the pattern forming member, wherein each of the cells is independently controlled to switch to a light reflective state or to a light absorptive state corresponding to an image pattern to be displayed, provided that the light absorptive state is a state in which a light which enters in the cell through the image display sheet is absorbed; and the light reflective state is a state in which a light which enters in the cell through the image display sheet is reflected and the reflected light is made to enter in a region of the image display sheet corresponding to the cell.