The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Aug. 12, 2019
Applicant:
E Ink Corporation, Billerica, MA (US);
Inventor:
Demetrious Mark Harrington, Cambridge, MA (US);
Assignee:
E Ink Corporation, Billerica, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G02B 26/00 (2006.01); G09G 3/34 (2006.01); G09G 3/38 (2006.01); G02F 1/163 (2006.01); G02F 1/1681 (2019.01);
U.S. Cl.
CPC ...
G09G 3/2007 (2013.01); G02F 1/163 (2013.01); G09G 3/344 (2013.01); G09G 3/38 (2013.01); G02B 26/005 (2013.01); G02F 1/1681 (2019.01); G09G 3/2044 (2013.01); G09G 3/2048 (2013.01); G09G 3/2051 (2013.01); G09G 2230/00 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/04 (2013.01); G09G 2310/062 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/0693 (2013.01); G09G 2330/021 (2013.01); G09G 2340/16 (2013.01);
Abstract
Methods for driving electro-optic displays, especially bistable displays, include (a) using two-part waveforms, the first part of which is dependent only upon the initial state of the relevant pixel; (b) measuring the response of each individual pixel and storing for each pixel data indicating which of a set of standard drive schemes are to be used for that pixel; (c) for at least one transition in a drive scheme, applying multiple different waveforms to pixels on a random basis; and (d) when updating a limited area of the display, driving 'extra' pixels in an edge elimination region to avoid edge effects.