E Ink has patented a front light module for electrophoretic displays, featuring a light guide plate, light source, optical film with microstructures, and optical clear adhesive for improved illumination. The design enhances display visibility and efficiency. GlobalData’s report on E Ink gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on E Ink, E-transaction user interfaces was a key innovation area identified from patents. E Ink's grant share as of January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Front light module with light guide plate and optical film

Source: United States Patent and Trademark Office (USPTO). Credit: E Ink Holdings Inc

A recently granted patent (Publication Number: US11886091B2) discloses a front light module designed with specific components to enhance light emission efficiency. The module includes a light guide plate with a light input surface, a light source emitting a light beam to the plate, and an optical film with optical microstructures. These microstructures have a unique design with inclined surfaces to optimize light reflection and transmission. Additionally, the module features optical clear adhesives for bonding the components together, ensuring a secure and efficient assembly.

Moreover, the patent extends to an electrophoretic display incorporating the front light module described above. The display panel is equipped with the light guide plate, light source, and optical film with anti-glare properties. The inclusion of an anti-glare layer and additional optical clear adhesives further enhances the display's performance. The design also incorporates multiple scattering microstructures on the light guide plate surfaces to improve light distribution. With a focus on maximizing light output and display quality, the patented technology offers a comprehensive solution for efficient front light modules in electrophoretic displays.

To know more about GlobalData’s detailed insights on E Ink, buy the report here.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.