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  • 专利标题:   Verifying product using multilayer security device, involves applying low-power radio frequency by capture device to security device which has organic light emitting iodide with coil, and graphene sheet to form contrasting pattern.
  • 专利号:   US2016325580-A1, US9568421-B2
  • 发明人:   FARMER D B, PFEIFFER D, SMITH J T
  • 专利权人:   INT BUSINESS MACHINES CORP
  • 国际专利分类:   B42D025/36, B42D025/465, G06K019/06, G06K019/077, G07D007/12, G07D007/20, H01L027/32, H01L051/52, G01J001/16, G01N021/00, G01N021/53
  • 专利详细信息:   US2016325580-A1 10 Nov 2016 B42D-025/36 201678 Pages: 22 English
  • 申请详细信息:   US2016325580-A1 US217064 22 Jul 2016
  • 优先权号:   US599637, US217064

▎ 摘　　要

NOVELTY - Verifying a product using multilayer security device, involves applying a low-power radio frequency (RF) by a capture device (322) to security device which has an organic LED substrate with RF coil to emit light and a graphene sheet made of monolayer of covalently bonded carbon atoms to from contrasting pattern which forms a captured pattern of emitted light and matches with expected pattern. USE - Verifying product using multilayer security device (claimed). DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a system for verifying the authenticity of the multilayered security device. Graphene layer (312) Substrate layer (314) Protecting coating layer (316) Verification stimulus (320) Capture device (322)