Chip card comprising an imaged-receiving layer

Details Chip card comprising an imaged-receiving layer Chip card comprising an imaged-receiving layer

1999-06-14

2001-06-26

Lee, Michael G. (Department: 2876)

Registers

Records

C235S488000, C235S492000

Reexamination Certificate

active

06250554

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a chip card comprising an imaged layer.
More specifically the invention is related to a chip card comprising an imaged layer containing an identification mark of the bearer.
BACKGROUND OF THE INVENTION
Chip cards (or smart cards) are intended for use in various applications such as divers type of identification operations. Therefore it is necessary that said cards contains a photographic image of the bearer of said card. The earlier chip card were cards where the chip had an outside contact. However said contacts were susceptible to wear and their life span was only a few year. In order to improve the life span of chip cards conctactless cards were introduced, containing a chip and an antenna embedded in a polymeric binder between a supporting layer and a covering layer. Said supporting layer and said covering layer are normally polyvinyl chloride, ABS, non-oriented poly ethylene terephthalate. The life span of these contactless chip card is usually 4 to 5 years.
Said chip cards have, when used for identification purpose, besides a number of security marks, also a number of data and also usually bear a photograph of the owner. The most preferred way to provide the chip card with a photograph of the owner is by creating by diffusion transfer the image of the owner in the image receiving layer of an imaging element and laminating said imaged image-receiving element with the image receiving layer continuous to the chip card.
Said image receiving element is usually composed of a layer package consisting of a transparent support, preferably a subbed polyethylene terephthalate layer, covered on one side with a protective layer and on the other side with a prelayer, and an imaged image receiving layer. When said layer package, after being imaged, is laminated to the contactless chip card, there occurs a separation of layers between the transparent support, preferably a subbed polyethylene terephthalate layer and the prelayer. Thereby the protection of the photographic image and other data applied on the image receiving layer or prelayer is removed and said image and data become prone to wear and falsification. So this is a serious problem and a solution for said problem is urgently needed.
OBJECTS OF THE INVENTION
It is an object of the present invention to provide a material having on a contactless chip card a photograph of the owner.
It is a further object of the invention to provide a material having on a contactless chip card a photograph of the owner that is protected by a transparent support, preferably a subbed polyethylene terephthalate layer
It is a further object of the invention to provide a material with a long lifespan having on a contactless chip card a photograph of the owner.


REFERENCES:
patent: 4843225 (1989-06-01), Hoppe
patent: 5585618 (1996-12-01), Droz
patent: 196 31 283 (1998-02-01), None
patent: 411139055 (1999-05-01), None
patent: 411161762 (1999-06-01), None
patent: WO 96/08596 (1996-03-01), None

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