US 11,733,580 B2
Method for driving two layer variable transmission display
Stephen J. Telfer, Arlington, MA (US); Richard J. Paolini, Jr., Framingham, MA (US); Sunil Krishna Sainis, Melrose, MA (US); Randal M. Hill, The Woodlands, TX (US); Isaac W. Moran, Maynard, MA (US); Lee Yezek, Watertown, MA (US); Alain Bouchard, Boston, MA (US); William Vetterling, Lexington, MA (US); George G. Harris, Woburn, MA (US); Hywel Morgan, Chandlers Ford (GB); Luke Slominski, Sharon, MA (US); Jay William Anseth, Canton, MA (US); Jennifer M. Morrison, Wakefield, MA (US); and Craig A. Herb, Medford, MA (US)
Assigned to E Ink Corporation, Billerica, MA (US)
Filed by E Ink Corporation, Billerica, MA (US)
Filed on Apr. 28, 2021, as Appl. No. 17/243,089.
Application 17/243,089 is a division of application No. 16/662,533, filed on Oct. 24, 2019, granted, now 11,029,576.
Application 15/963,192 is a division of application No. 15/059,424, filed on Mar. 3, 2016, granted, now 9,989,829, issued on Jun. 5, 2018.
Application 14/071,491 is a division of application No. 13/113,567, filed on May 23, 2011, granted, now 8,576,476, issued on Nov. 5, 2013.
Application 16/662,533 is a continuation of application No. 15/963,192, filed on Apr. 26, 2018, abandoned.
Application 15/059,424 is a continuation of application No. 14/071,491, filed on Nov. 4, 2013, granted, now 9,341,916, issued on May 17, 2016.
Claims priority of provisional application 61/347,063, filed on May 21, 2010.
Prior Publication US 2021/0263385 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 26/00 (2006.01); G03G 17/04 (2006.01); G09G 3/34 (2006.01); G02F 1/133 (2006.01); G02F 1/16757 (2019.01); G02F 1/167 (2019.01); G02F 1/1681 (2019.01); G02F 1/1675 (2019.01); G02F 1/1347 (2006.01)
CPC G02F 1/16757 (2019.01) [G02F 1/167 (2013.01); G02F 1/1347 (2013.01); G02F 1/1681 (2019.01); G02F 2001/1678 (2013.01); G02F 2201/16 (2013.01); G02F 2203/30 (2013.01); G02F 2203/34 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A microcavity electrophoretic display comprising microcapsules, each microcapsule having walls defining microcavities, the microcavities containing a fluid and first, second and third types of particles dispersed in the fluid, each of the first, second and third types of particles having an unshuttered state, in which the particles occupy substantially the entire area of the microcavity, and a shuttered state, in which the particles occupy only a minor proportion of the areas of the microcavity, the first, second and third particles being of differing colors and differing in dielectrophoretic or electro-osmotic properties such that the first, second and third types of particles can be moved between their unshuttered and shuttered states independently of one another.