E Ink. has been granted a patent for a touch display device featuring a multi-layer structure. This includes a driving substrate, display medium, common and touch electrode layers, and protective elements, designed to enhance touch functionality and display performance. GlobalData’s report on E Ink 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 E Ink, E-transaction user interfaces was a key innovation area identified from patents. E Ink's grant share as of July 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Touch display device with layered electrode structure
The granted patent US12073038B2 outlines several claims related to a touch display device, emphasizing its structural components and configurations. The device includes a driving substrate, a display medium layer, and a common electrode layer that is in direct contact with the display medium. This common electrode layer consists of multiple common electrodes, which are spaced apart from one another. Additionally, the device features a touch electrode layer that, along with the common electrode layer, forms a touch structure layer. Protective and barrier layers are incorporated, along with substrates and optical adhesive layers, to enhance the device's functionality and durability. Notably, some claims specify the use of ultra-thin glass layers, with thicknesses less than 150 µm and low water permeability, to optimize the device's performance.
Further claims detail additional components such as optical adhesive layers and light guide plates, which are positioned strategically within the device's architecture. The spacing between adjacent common electrodes is specified to be less than or equal to 50 µm, which may contribute to the sensitivity and accuracy of touch detection. The patent also includes variations in the materials used, such as insulating layers and different types of glass, while maintaining the core structure of the touch display device. Overall, the claims present a comprehensive framework for a touch display device that integrates advanced materials and design elements to improve user interaction and display quality.
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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.
