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. 14, 2006
Filed:
Dec. 28, 2001
Young Jae Jeon, Seoul, KR;
Young Jae Jeon, Seoul, KR;
Si Han Kim, Kyunggi-Do, KR;
Abstract
Provided is an advertisement apparatus using a light switching device which transmits or shields light according as a power source or heat is supplied or not. The advertisement apparatus includes a light switching device transmitting light when a power source or heat is supplied thereto and shielding light of less than predetermined brightness when a power source or heat is not supplied thereto, or operating in a reverse manner, and an illuminator for illuminating an image onto the light switching device with light whose brightness is greater than the predetermined brightness. The light switching device can be used as the window of a building, and can present images of an advertisement using the illuminator for irradiating light from a projector, for example, to the light switching device. Therefore, the advertisement apparatus using a light switching device can be used for both indoor and outdoor advertising displays.