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.

Date of Patent:
Jul. 01, 2014

Filed:

Apr. 19, 2012
Applicants:

Seog-woo Hong, Suwon-si, KR;

Che-heung Kim, Yongin-si, KR;

Inventors:

Seog-Woo Hong, Suwon-si, KR;

Che-Heung Kim, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light screening apparatus and a method of fabricating the same are provided. The light screening apparatus includes: a base plate including a first electrode; at least one material layer on the base plate; a rollup blade including a second electrode and configured to be disposed corresponding to a light transmitting portion of the base plate; a driving unit configured to be electrically connected to the first electrode and the second electrode; and a sticking prevention structure which prevents sticking between the rollup blade and the material layer. The sticking prevention structure may refer to a surface structure of at least one of the rollup blade and the material layer or a sticking prevention layer or a sticking prevention pattern which is additionally formed on at least one of an outer circumference surface of the rollup blade and a surface of the material layer.


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