Plastic shaped body with an integrated optoelectronic luminous element
AssigneeSchonberg + Cerny GmbH
InventorChristian Czàk
Life of this patent
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Abstract
The invention relates to a plastic shaped body with an integrated optoelectronic luminous element and to a method for the production thereof. To this end, translucent and cold-stretchable plastic film is three-dimensionally formed at least in the area of the luminous elements and subsequently sprayed with thermoplastic synthetic material. The luminous elements are screen printed onto the unshaped film in the form of luminous fields before the plastic film is formed.
Claims38
A plastic form body having one or more integrated, opto-electronic active luminous fields comprising;
- at least one translucent, cold-stretchable, three-dimensionally deformed plastic foil;
- graphic printing;
- an electro-luminescent layer comprising at least one electro-luminous element at least partially embedded in said graphic printing;
- a first conducting surface positioned between the translucent plastic foil and the electro-luminescent layer;
- a second conducting surface positioned on the side of the electro-luminescent layer not in contact with the first conducting surface;
- and
- a thermoplastic film sprayed on the body to comprise a three-dimensional molding,
- wherein the luminous fields comprise distinct regions of the plastic form body capable of emitting radiation.
A process to produce a plastic form body having at least one electroluminescent device formed therein, comprising the following steps:
- preparing a transparent, cold-stretchable, thin plastic foil substrate;
- depositing a graphic design as an opaque covering and/or translucent screen print formation;
- depositing a substantially transparent, electric-conducting cover electrode layer;
- depositing an electro-luminescence layer;
- depositing an insulating, dielectric layer;
- depositing an electric-conducting base electrode layer;
- forming and stamping out at least one three-dimensional plastic foil substrate from the thin plastic foil substrate;
- positioning at least one of said three-dimensional plastic foil substrates in or on a three-dimensional support;
- and
- depositing a thermoplastic reinforcement onto said at least one supported three-dimensional plastic foil substrate.
A process to produce a plastic form body having at least one electroluminescent device formed therein, comprising the following steps:
- preparing a transparent, cold-stretchable, thin plastic foil substrate covered on an entire surface on an inner side with an indium-tin-oxide (ITO)-layer and/or reflective semi-transparent layers in sputter processes;
- depositing an opaque covering and/or a translucent screen printing formation in a selected graphic design;
- depositing an electro-luminescence layer;
- depositing an insulating, dielectric layer;
- depositing an electric-conducting base electrode layer by means of screen printing;
- forming and stamping out at least one three-dimensional plastic foil substrate from the thin plastic foil substrate;
- positioning at least one of said three-dimensional plastic foil substrates in or on a three-dimensional support;
- and
- depositing a thermoplastic reinforcement onto said at least one supported three-dimensional plastic foil substrate.
A plastic form body having one or more integrated, opto-electronic active luminous fields comprising;
- at least one translucent, cold-stretchable, three-dimensionally deformed plastic foil;
- graphic printing;
- an electro-luminescent layer comprising at least one electro-luminous element at least partially embedded in said graphic printing wherein the electro-luminous element comprises organic or inorganic substances comprising plastically deformable dielectric screen printing colors added as a fine powder or microencapsulated components;
- a first conducting surface positioned between the translucent plastic foil and the electro-luminescent layer;
- a second conducting surface positioned on the side of the electro-luminescent layer not in contact with the first conducting surface;
- and
- a thermoplastic layer applied to the body to comprise a three-dimensional molding,
- wherein the luminous fields comprise distinct regions of the plastic form body capable of emitting radiation.
Dependencies are inferred from the claim text.