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:
Sep. 11, 2018
Filed:
Mar. 31, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Petrus Maria de Greef, Waalre, NL;
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
Systems and methods for driving an electrowetting display device including a plurality of sub-pixels are presented. A reflectance level of a first sub-pixel in the plurality of sub-pixels is set to a minimum reflectance level or a threshold reflectance level. A reflectance quantization error is determined and a second reflectance level of a second sub-pixel in the plurality of sub-pixels is set to a second target reflectance level of the second sub-pixel plus a first fraction of the reflectance quantization error. A third reflectance level of a third sub-pixel in the plurality of sub-pixels is set to a third target reflectance level of the third sub-pixel plus a second fraction of the reflectance quantization error, and a fourth reflectance level of a fourth sub-pixel in the plurality of sub-pixels is set to a fourth target reflectance level of the fourth sub-pixel plus a third fraction of the reflectance quantization error.