US 12,462,725 B2
Electro-optic displays and methods for driving the same
Demetrious Mark Harrington, Cambridge, MA (US); Kenneth R. Crounse, Somerville, MA (US); Karl Raymond Amundson, Cambridge, MA (US); Teck Ping Sim, Acton, MA (US); and Matthew J. Aprea, Wellesley, MA (US)
Assigned to E Ink Corporation, Billerica, MA (US)
Filed by E INK CORPORATION, Billerica, MA (US)
Filed on Jan. 17, 2025, as Appl. No. 19/029,235.
Application 15/632,730 is a division of application No. 14/190,135, filed on Feb. 26, 2014, granted, now 9,721,495, issued on Aug. 1, 2017.
Application 19/029,235 is a continuation of application No. 18/510,185, filed on Nov. 15, 2023.
Application 18/510,185 is a continuation of application No. 18/050,769, filed on Oct. 28, 2022, granted, now 11,854,456.
Application 18/050,769 is a continuation of application No. 17/386,982, filed on Jul. 28, 2021, granted, now 11,545,065, issued on Jan. 3, 2023.
Application 17/386,982 is a continuation of application No. 15/632,730, filed on Jun. 26, 2017, granted, now 11,145,235, issued on Oct. 12, 2021.
Claims priority of provisional application 61/769,802, filed on Feb. 27, 2013.
Prior Publication US 2025/0201163 A1, Jun. 19, 2025
Int. Cl. G09G 3/20 (2006.01); G09G 3/34 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 3/344 (2013.01); G09G 2230/00 (2013.01); G09G 2340/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of driving an electro-optic display having a plurality of pixels, the method comprising:
driving the electro-optic display from a first image to a second image using at least one gray level transition of a first drive scheme, and
thereafter driving the electro-optic display from the second image to a third image using at least one gray level transition of a second drive scheme different from the first drive scheme,
the second drive scheme having at least one impulse differential gray level having an impulse potential difference with respect to a corresponding gray level in the first drive scheme, and wherein
each one of the plurality of pixels that will be in the at least one impulse differential gray level in the second image is driven from the first image to the second image using a modified version of the first drive scheme such that
the modified version of the first drive scheme reduces the impulse potential difference introduced in each one of the plurality of pixels that will be in the at least one impulse differential gray level in the second image by switching from the first drive scheme to the second drive scheme, and wherein,
for each one of the plurality of pixels that will be in the at least one impulse differential gray level in the second image,
at least a last two gray level transitions prior to the second image are conducted using the modified version of the first drive scheme.