MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202617055698 A) filed by E Ink Corporation on May 01, 2026, for Driving Sequences For Multi-Particle Electrophoretic Displays Providing Improved Color States.
Inventors include Cheng, Ying-Chuan; and Chien, Lu-Ting.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: Method for driving an electrophoretic display layer to color states having improved a* and/or b* values. The display layer includes an electrophoretic medium with first, second, third, and fourth types of particles. The first and third particles have charges of opposite polarity than the second and fourth particles. The first particles have greater charge magnitude than the third particles. The second particles have greater charge magnitude than the fourth particles. The method includes (a) applying a pre-push voltage pulse of the first polarity and a given amplitude to the display layer for a first time period to promote separation of the first and third particles; and (b) applying push-pull voltage pulses to the display layer for a second time period to drive the display to a color state of the third particles. The push-pull voltage pulses alternate between the first and second polarity with amplitudes greater than the given amplitude.
Disclaimer: Curated by HT Syndication.
