Samsung SDI has been granted a patent for a polarizing plate designed for optical displays. The invention features a polarizing film, a first base layer, and a pattern layer with distinct optical patterns, enhancing light management through specific refractive indices and layer arrangements. GlobalData’s report on Samsung SDI 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 Samsung SDI, Hydrogen storage alloys was a key innovation area identified from patents. Samsung SDI's grant share as of July 2024 was 62%. Grant share is based on the ratio of number of grants to total number of patents.
Polarizing plate for optical displays with layered structure
The granted patent US12072571B2 describes a polarizing plate designed for optical applications, comprising a polarizing film, a first base layer, and a pattern layer. The pattern layer consists of two sequentially arranged layers, where the first layer has a higher index of refraction than the second layer. This configuration is positioned on the side of the polarizing film that corresponds to the light exit surface. The first layer features a patterned portion with at least two optical patterns separated by flat sections, and the overall wall thickness of the pattern layer is specified to be between 0 µm and 30 µm. Additionally, the patent outlines specific refractive index requirements for the base layers and the optical patterns, which may include various designs such as lenticular lens patterns and polygonal cross-sections.
Further claims detail the characteristics of the optical patterns, including their aspect ratios and the relationship between their height and distance from the uppermost surface of the pattern layer. The second layer may include filling patterns that interface with the first layer, and the patent specifies a range for the cross-sectional area ratios of these filling patterns. The second base layer can be made from various resin materials, and the polarizing plate may also incorporate a functional layer on its light exit surface, which can serve multiple purposes such as anti-reflective or fingerprint-resistant properties. The patent concludes by indicating that the polarizing plate can be utilized in optical displays, highlighting its potential applications in enhancing visual performance.
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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.
