Abstract: A leather material suitable for being attached to a touch display panel such as a vehicle dashboard is provided. The leather material includes a foam layer and a fabric layer. The foam layer is foamed to provide a leather feel. The fabric layer is disposed on the foam layer, and the fabric layer is color-matched and embossed to present a leather pattern. Base materials of the foam layer and the fabric layer are both at least one material selected from the group consisting of polyvinyl chloride (PVC), polyurethane (PU), and polyolefin (PO). The leather material in entirety has a visible light transmittance of between 40% and 70% and has a resistivity of not less than 1010 ?cm. A vehicle dashboard composite structure is also provided.

Abstract: A water-based printing ink composition for gravure printing and a method for producing the same are provided. The water-based printing ink composition includes: 1 to 15 parts by weight of a pigment, 1 to 50 parts by weight of an aqueous resin mixture, 1 to 20 parts by weight of a quick-drying agent, and 30 to 80 parts by weight of water. The aqueous resin mixture includes a first aqueous resin and a second aqueous resin, a first glass transition temperature of the first aqueous resin is greater than a second glass transition temperature of the second aqueous resin, and an absolute value of the difference between the first glass transition temperature and the second glass transition temperature is not less than 40° C. The quick-drying agent is an alcohol or a ketone, and the quick-drying agent has a boiling point of not greater than 85° C.

Abstract: A leather material suitable for being attached to a touch display panel such as a vehicle dashboard is provided. The leather material includes a foam layer and a fabric layer. The foam layer is foamed to provide a leather feel. The fabric layer is disposed on the foam layer, and the fabric layer is color-matched and embossed to present a leather pattern. Base materials of the foam layer and the fabric layer are both at least one material selected from the group consisting of polyvinyl chloride (PVC), polyurethane (PU), and polyolefin (PO). The leather material in entirety has a visible light transmittance of between 40% and 70% and has a resistivity of not less than 1010 ?cm. A vehicle dashboard composite structure is also provided.

Abstract: An electronic device case and a decorative film thereof are provided. The decorative film includes a plurality of stacked optical layers. Each of the plurality of stacked optical layers includes a first optical layer, a second optical layer formed on the first optical layer, a third optical layer formed on the second optical layer, and a fourth optical layer formed on the third optical layer. The refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer vary according to a predetermined rule, and the refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer are all between 1.40 and 1.70. The first optical layer and the third optical layer have different refractive indices, and the second optical layer and the fourth optical layer have the same refractive index.

Abstract: A touch display leather and a leather structure thereof are provided. The leather structure includes a diffusion layer, a foam layer and a fabric layer. The diffusion layer includes optical powder dispersed therein. The foam layer is disposed on the diffusion layer, and the foam layer is foamed to provide a leather feel. The fabric layer is disposed on the foam layer, and the fabric layer is color-matched and embossed to present a leather pattern. Base materials of the diffusion layer, the foam layer, and the fabric layer are all at least one material selected from the group consisting of polyvinyl chloride (PVC), polyurethane (PU), and polyolefin (PO), and the leather structure has a light transmittance between 2% and 30%.

Abstract: A polymer film having a laminated structure is provided. The polymer film includes a plurality of first overlapping film units and a plurality of second overlapping film units disposed in an alternately-laminated manner with the first overlapping film units. Each of the first overlapping film units includes a first lower film and a first upper film, and each of the first overlapping film units is configured to reflect visible light in a first visible light wavelength range. Each of the second overlapping film units includes a second lower film and a second upper film, and each of the second overlapping film units is configured to reflect visible light in a second visible light wavelength range. The first visible light wavelength range is different from the second visible light wavelength range.

Abstract: A touch display leather and a leather structure thereof are provided. The leather structure includes a diffusion layer, a foam layer and a fabric layer. The diffusion layer includes optical powder dispersed therein. The foam layer is disposed on the diffusion layer, and the foam layer is foamed to provide a leather feel. The fabric layer is disposed on the foam layer, and the fabric layer is color-matched and embossed to present a leather pattern. Base materials of the diffusion layer, the foam layer, and the fabric layer are all at least one material selected from the group consisting of polyvinyl chloride (PVC), polyurethane (PU), and polyolefin (PO), and the leather structure has a light transmittance between 2% and 30%.

Abstract: A polyester film for dry films includes a polyester resin matrix and a plurality of spherical smoothing agents dispersed in the polyester resin matrix. The polyester resin matrix has a refractive index with a range from 1.5 to 1.7. Each of the spherical smoothing agents has a refractive index within a range from 1.3 to 1.9, a particle size within a range from 50 nm to 2 ?m, and a circularity not less than 0.7. A surface of each of the spherical smoothing agents is covered with a siloxane compound or modified with siloxy to be in contact with the polyester resin matrix. The polyester film for dry films is a biaxially-stretched polyester film, and the polyester film for dry films has a haze not greater than 1%, a transparency not less than 85%, and a circuit resolution not greater than 10 ?m.

Abstract: An electronic device case and a decorative film thereof are provided. The decorative film includes a plurality of stacked optical layers. Each of the plurality of stacked optical layers includes a first optical layer, a second optical layer formed on the first optical layer, a third optical layer formed on the second optical layer, and a fourth optical layer formed on the third optical layer. The refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer vary according to a predetermined rule, and the refractive indices of the first optical layer, the second optical layer, the third optical layer, and the fourth optical layer are all between 1.40 and 1.70. The first optical layer and the third optical layer have different refractive indices, and the second optical layer and the fourth optical layer have the same refractive index.

Abstract: A water-based printing ink composition for gravure printing and a method for producing the same are provided. The water-based printing ink composition includes: 1 to 15 parts by weight of a pigment, 1 to 50 parts by weight of an aqueous resin mixture, 1 to 20 parts by weight of a quick-drying agent, and 30 to 80 parts by weight of water. The aqueous resin mixture includes a first aqueous resin and a second aqueous resin, a first glass transition temperature of the first aqueous resin is greater than a second glass transition temperature of the second aqueous resin, and an absolute value of the difference between the first glass transition temperature and the second glass transition temperature is not less than 40° C. The quick-drying agent is an alcohol or a ketone, and the quick-drying agent has a boiling point of not greater than 85° C.