US 11,657,773 B2
Methods for driving electro-optic displays
Karl Raymond Amundson, Cambridge, MA (US); Matthew J. Aprea, Wellesley, MA (US); Kenneth R. Crounse, Somerville, MA (US); Demetrious Mark Harrington, Cambridge, MA (US); Jason Lin, Malden, MA (US); Theodore A. Sjodin, Lexington, MA (US); and Chia-Chen Su, San Francisco, CA (US)
Assigned to E Ink Corporation, Billerica, MA (US)
Filed by E INK CORPORATION, Billerica, MA (US)
Filed on Aug. 30, 2022, as Appl. No. 17/899,283.
Application 16/854,045 is a division of application No. 13/755,111, filed on Jan. 31, 2013, granted, now 10,672,350, issued on Jun. 2, 2020.
Application 17/899,283 is a continuation of application No. 17/389,886, filed on Jul. 30, 2021, granted, now 11,462,183.
Application 17/389,886 is a continuation of application No. 16/854,045, filed on Apr. 21, 2020, granted, now 11,145,261, issued on Oct. 12, 2021.
Claims priority of provisional application 61/593,361, filed on Feb. 1, 2012.
Prior Publication US 2022/0415268 A1, Dec. 29, 2022
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/344 (2013.01) [G09G 2310/06 (2013.01); G09G 2310/062 (2013.01); G09G 2310/063 (2013.01); G09G 2310/068 (2013.01); G09G 2320/0204 (2013.01); G09G 2320/0209 (2013.01); G09G 2320/0257 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A controller for an electrophoretic display configured to carry out a two-stage driving method for updating an image of the electrophoretic display:
the electrophoretic display having a plurality of first pixels in a first area of the display that are required to be driven from their original optical state to a new optical state during an image update, and a plurality of second pixels in a second area of the display that are not required to change their optical state during the image update, wherein the first and second areas are adjacent and contiguous along a line,
wherein, in the first stage, the plurality of second pixels in the second area are driven to the original optical state of the plurality of first pixels while the plurality of first pixels are not driven; and
in the second stage, both the plurality of first pixels and the plurality of second pixels are updated to the new optical state of the first area, thereby causing the second plurality of pixels to return to their original optical state.