Title:
FORGERY AND FALSIFICATION PREVENTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/077604
Kind Code:
A1
Abstract:
A forgery and falsification prevention device according to the present invention includes: a variable material containing unit that contains a variable material in which reflected light or transmitted light is changed in response to an application of a display stimulus; and an operation unit that performs a function of changing a display state of the variable material when an external stimulus is applied, by changing light reflection characteristics or light transmission characteristics of the variable material or changing the display stimulus which is applied to the variable material.
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Inventors:
JOO JAE HYUN (KR)
Application Number:
PCT/KR2013/010352
Publication Date:
May 22, 2014
Filing Date:
November 14, 2013
Export Citation:
Assignee:
NANOBRICK CO LTD (KR)
International Classes:
G02F1/01; G02F1/167; G02F1/1673; G06V30/224
Foreign References:
| KR20120082380A | 2012-07-23 | |||
| KR20110053929A | 2011-05-24 | |||
| KR20110050612A | 2011-05-16 | |||
| KR20110029222A | 2011-03-23 | |||
| KR101016922B1 | 2011-02-25 |
Other References:
See also references of EP 2921901A4
Attorney, Agent or Firm:
SU INTELLECTUAL PROPERTY (KR)
특허법인 수 (KR)
특허법인 수 (KR)
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