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:
Jun. 23, 2015

Filed:

Sep. 12, 2011
Applicant:

Che-heung Kim, Yongin-si, KR;

Inventor:

Che-Heung Kim, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/02 (2006.01); G02B 1/116 (2015.01); G02B 5/00 (2006.01); G02B 26/08 (2006.01); G03B 9/08 (2006.01); H04N 5/225 (2006.01); G09G 3/34 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G02B 26/02 (2013.01); G02B 1/116 (2013.01); G02B 5/005 (2013.01); G02B 26/0841 (2013.01); G03B 9/08 (2013.01); H04N 5/2254 (2013.01); G09G 3/2018 (2013.01); G09G 3/3433 (2013.01); G09G 2300/0456 (2013.01);
Abstract

A light screening apparatus and an electronic device including the light screening apparatus are provided, where the electronic device could be an imaging device or a display device. The light screening apparatus includes a base plate, a rollup blade, and a driving unit. The base plate includes a lower electrode and a light transmitting portion through which light passes. The rollup blade includes an upper electrode and at least two layers having different optical properties. The driving portion is electrically connected to the base plate and the rollup blade, and it controls the amount of light passing through the light transmitting portion of the base plate. The outer circumferential surface of the rollup blade, when in a rolled-up position, may be an anti-reflection surface.


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