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.:

US 8619353 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 31, 2013

Filed:

Nov. 10, 2011
Applicants:

Hwan-soo Lee, Seoul, KR;

Hye Yeon Cha, Gyeonggi-do, KR;

Yongsoo OH, Gyeonggi-do, KR;

Inventors:

Hwan-Soo Lee, Seoul, KR;

Hye Yeon Cha, Gyeonggi-do, KR;

Yongsoo Oh, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides an electronic paper display apparatus, which comprises: plural pairs of rotating balls each pair having a first rotating ball and a second rotating ball of a size smaller than that of the first rotating ball; a partition wall member having a plurality of cavities each in which a respective rotating ball is positioned and configured to transversely separate the plurality of rotating balls from each other; an electrode structure formed on the partition wall member and configured to provide a drive voltage to each of the plurality of rotating balls; and a plurality of distance adjusting members disposed inside the plurality of cavities, with being faced the plurality of rotating balls.


Find Patent Forward Citations

Lee, Hwan-Soo. (2013). Electronic paper display apparatus and method thereof (U.S. Patent No. 8619353). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8619353

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