Nippon Sheet Glass has patented an antiglare film-attached substrate with specific surface characteristics. The substrate includes a principal surface partially covered by an antiglare film, with the film accounting for 10 to 90% of the surface area. The surface roughness parameters meet defined standards. GlobalData’s report on Nippon Sheet Glass gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Nippon Sheet Glass, Vacuum insulated glazing was a key innovation area identified from patents. Nippon Sheet Glass's grant share as of May 2024 was 35%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for antiglare film-attached substrate with specific roughness requirements
A recently granted patent (Publication Number: US11994650B2) discloses an antiglare film-attached substrate designed to reduce glare on electronic devices. The substrate includes a first principal surface with a portion exposed and another portion covered by an antiglare film. The second principal surface, formed by the first principal surface and the antiglare film surface, has specific roughness parameters as per Japanese Industrial Standards (JIS) B 0601-2001. The antiglare film accounts for 10 to 90% of the second principal surface area, with the film comprising particles with a primary diameter of 0.5 to 15 µm and a surrounding binder. The film's roughness profile elements must meet defined requirements for average roughness, maximum height, and average length.
Moreover, the patent details various aspects of the antiglare film-attached substrate, including the arrangement and composition of particles and binders within the film. The film's properties, such as specular glossiness and haze, are specified to ensure optimal performance in reducing glare. The substrate, which can be made of glass like soda-lime silicate or aluminosilicate glass, may also include a compressive stress layer or a coating for added durability. The patent further extends to applications of the antiglare film-attached substrate in image display apparatus and digital signage, where the substrate is strategically placed between the screen and the antiglare film to enhance visibility and reduce reflections for improved viewing experience.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
