Identification document characterized by an electroluminescence effect and the procedure for its realizing

• US 5,690,366 A
• Filed: 06/02/1995
• Issued: 11/25/1997
• Est. Priority Date: 04/20/1993
• Status: Expired due to Fees

• Current Assignee: Abbatemaggio Luciano
• Original Assignee: Abbatemaggio Luciano
• Inventors: Luciano, Abbatemaggio
• Primary Examiner(s): HAN, FRANCES CHIN
• Application Number:
  US08/460,118
• Time in Patent Office: 907 Days
• Field of Search: 283/83, 283/85, 283/91, 283/92, 283/94, 283/98, 283/107-111, 283/901, 283/904, D19/9-12, 428/690, 428/916, 428/917, 428/901, 235/380, 235/491, 235/454, 40/544
• US Class Current: 283/83
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/30 Identification or security features, e.g. for preventing forgery
• CPC Class Codes: G06K 19/06046 Constructional details
• CPC Class Codes: Y10S 283/904 Credit card
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

Identification document characterized by an electroluminescence effect, the peculiarity of which consists of including a plurality of superimposed layers according to the following sequence:

one transparent support, one codification layer, said codification layer being fit for having a pre-established identification code, one first electric circuit, one first insulating layer, one electroluminescence layer, a second insulating layer, a second electrical circuit, one additional insulating layer, said first and second circuits being fit for lightening said electroluminescence layer by making use of alternating current through said circuits.

Claims

1. Procedure for realizing an identification document characterized by an electroluminescence effect and consisting of:

preparing the transparent support

placing a codification layer on said transparent support

placing a first electric circuit on said codification layer

placing a first insulating layer on said first electric circuit

placing one electroluminescence layer on said first insulating layer

placing a second insulating layer on said electroluminescence layer

placing a second electric circuit on said second insulating layer

placing one additional insulating layer.

2. Procedure, according to claim 1, characterized by placing a first personalization layer on said transparent support and by placing said codification layer on said first personalization layer.

3. Procedure, according to claim 1, characterized by placing a second personalization layer on said additional insulating layer.

4. Procedure, according to claim 1, characterized by the fact that said layers are printed according to the silk-screen method.

5. Procedure, according to claim 1, characterized by the fact that said support is made out of synthetic material.

6. Procedure, according to claim 1, characterized by the fact that said deposition of the first and second personalization layer consists of carrying out a series of silk-screen printings obtained through diaphanie method with at least one color.

7. Procedure, according to claim 1, characterized by the fact that said deposition on said codification layer consists of printing, according to the silk-screen method, a lay-out formed by a series of holes in negative form through an opaque resin.

8. Procedure, according to claim 1, characterized by the fact that said deposition of the first and second electric circuit consists of printing said electric circuit through silk-screen silver based pastes.

9. Procedure, according to claim 1, characterized by the fact that said deposition of the first and second insulating layer consists of printing, according to the silk-screen method, a two-compounded transparent epoxy resin.

10. Procedure, according to claim 1, characterized by the fact that said deposition of said second layer, consists in placing a white resin fit for reflecting light.

11. Procedure, according to claim 1, characterized by the fact that said deposition of said electroluminescence layer consists of printing according to the silk-screen method, some zinc sulphides and a base of acrylic resin.

12. Procedure, according to claim 1, characterized by the fact that said first electric circuit is placed being grid-shaped and covers a part of said transparent holes on said codification layer.

13. Procedure, according to claim 1, characterized by the fact that said deposition of the second electric circuit consists of placing said second electric circuit assuming a configuration which entirely treads said first electric circuit.

14. Procedure, according to claim 1, characterized by thermically treating said document further to said deposition of said electric circuits in order to reticulate said electric circuits and said resins in contact with said electric circuits.

15. Procedure, according to claim 1, characterized by thermically treating said document further to said deposition of said first insulating layer of said layer of electroluminescence and of said additional insulating layer to reticulate said resins constituing said first insulating layer, said electroluminescence layer and said additional insulating layers.

16. Procedure, according to claim 14, characterized by the fact that said thermic treatment consists in exposing said document up to the temperature of 100°

-120°

C. for a span of time of at least 60 minutes.