Uneven surface film and light diffusive sheet
OwnerKoji Nakahata, Shingo Ohsakuinventors
Life of this patent
Estimating the term…
Abstract
An uneven surface film and a light-diffusing sheet are provided, which can prevent generation of scratches on surfaces thereof even when a plurality of the films or sheets are piled up or the film or sheet is superimposed on another member. The uneven surface film of the present invention has an uneven profile on a surface of the film, wherein the uneven profile shows a maximum peak height (Rp) of 6.0 μm or higher and a number of peaks (RHSC) of 600 peaks/0.5 mm2 or less in a roughness curve determined by three-dimensional surface profilometry. This uneven surface film can be suitably used as a component member of a backlight, a light-diffusing sheet, or the like, and exhibits anti-scratch function as well as favorable light-diffusing property.
Claims13
An uneven surface film having an uneven profile on a surface of the film, wherein the uneven profile shows a maximum peak height (Rp) of 6.0 μm or higher and a number of peaks (RHSC) of 600 peaks/0.5 mm2 or less in a roughness curve determined by three-dimensional surface profilometry.
A light-diffusing sheet comprising a light-diffusing layer having an uneven profile on a surface of the layer, wherein the uneven profile shows a maximum peak height (Rp) of 6.0 μm or higher and a number of peaks (RHSC) of 600 peaks/0.5 mm2 or less in a roughness curve determined by three-dimensional surface profilometry.
Dependencies are inferred from the claim text.