E Ink. has developed an innovative method for driving an electrophoretic display with a multi-colored medium. By applying specific voltage pulses and periods of zero voltage, a process black color can be displayed on the viewing surface. This technology enhances display capabilities for electronic devices. 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 January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Method for driving electrophoretic display with color mixing capability
The patent application (Publication Number: US20240019752A1) describes a method for driving an electrophoretic display, which includes a layer of electrophoretic medium with different types of particles dispersed in a fluid. These particles have specific charges and properties that allow for the display of different colors. The driving method involves a series of steps, including applying specific voltages, zero voltage periods, and repeating certain steps to achieve desired color displays on the viewing surface. By following this method, a process black color can be displayed on the electrophoretic display.
Furthermore, the patent application also includes a driving method variation where the electrophoretic medium is driven to display a white color initially, followed by applying specific driving voltages and periods to display the color red on the viewing surface. This method involves driving particles towards the viewing surface using different voltages and polarities, along with zero voltage periods. By repeating these steps, the color red can be effectively displayed on the electrophoretic display. The patent application emphasizes the repetition of certain steps to achieve the desired color displays, ensuring the effectiveness of the driving method for electrophoretic displays.
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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.
