Abstract: An unevenness correction data generation device suppressing the appearance of color unevenness when turning on R, G and B together includes a pattern generation unit causing red, green and blue images, in which display panel subpixels are turned on at the same gray level, to be displayed, a monochrome camera, a control unit generating first red, green and blue luminance correction data based on shooting data of the monochrome camera, a pattern generation unit causing the display panel to display a white image by causing red, green and blue images corrected with the respective luminance correction data to be displayed simultaneously, a color camera shooting the white image in color, and a control unit generating color correction data for correcting color unevenness based on shooting data of the color camera and generates unevenness correction data based on the red, green and blue luminance correction data and the color correction data.

Abstract: The object of the invention is to secure straight travelability for a fastener during the driving of the latter, simplify the connecting fastener production process, simplify the cleaning of the work site, and prevent work-attending damage to the flooring. In a connecting fastener, kraft paper (5) in a combination band (2, 3) for holding a number of nails (2) is pasted to opposite surfaces of the nails (2), the kraft paper (5) having a plastic layer (6) that is formed with a plurality of grooves (7A, 7B) with a pitch smaller than the arrangement pitch of the nails (2), facilitating the separation of the nails (2).

Abstract: The object of the invention is to secure straight travelability for a fastener during the driving of the latter, simplify the connecting fastener production process, simplify the cleaning of the work site, and prevent work-attending damage to the flooring. In a connecting fastener, kraft paper (5) in a combination band (2, 3) for holding a number of nails (2) is pasted to opposite surfaces of the nails (2), the kraft paper(5) having a plastic layer (6) that is formed with a plurality of grooves (7A, 7B) with a pitch smaller than the arrangement pitch of the nails (2), facilitating the separation of the nails (2).