Stanley Electric has been granted a patent for a light guide plate designed to minimize luminance unevenness. The plate features a base with a light incident surface and multiple convex lenses, strategically arranged to enhance light distribution, particularly in regions close to the light source. GlobalData’s report on Stanley Electric 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 Stanley Electric, Under-screen biometric identification was a key innovation area identified from patents. Stanley Electric's grant share as of June 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Light guide plate with reduced luminance unevenness
The patent US12038594B2 describes a light guide plate designed to enhance light distribution in various applications, including lighting and display systems. The light guide plate features a base portion with a light incident surface at one end and a series of convex lenses aligned orthogonally to the light incident surface. The design includes two distinct regions: a first region near the light incident surface, equipped with multiple inclined bottom portions between the convex lenses, and a second region further away, which also contains bottom portions that are inclined but designed differently. The inclination of these bottom portions is critical, as it affects the height and width of the lenses, optimizing light transmission and distribution.
Additionally, the patent outlines a lighting apparatus that incorporates the light guide plate, a reflective sheet, a condensing sheet, and multiple light sources directed at the light incident surface. Furthermore, a display apparatus is described, which integrates the lighting apparatus with a liquid crystal panel, ensuring that the light guide plate is positioned to enhance the display's image formation. The claims also specify various configurations for the bottom portions, including tilt angles and area ratios relative to the convex lenses, which are intended to improve the overall efficiency and effectiveness of the light guide plate in practical applications.
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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.
