Electroluminescent device having connections on the base

• US 3,153,166 A
• Filed: 08/05/1960
• Issued: 10/13/1964
• Est. Priority Date: 08/05/1960
• Status: Expired due to Term

• Current Assignee: Robert L. Fitzmaurice, William A. Thornton Jr
• Original Assignee: Robert L. Fitzmaurice, William A. Thornton Jr
• Inventors: Thornton, William A. Jr., Fitzmaurice, Robert L.
• Application Number:
  US04/047,793
• Time in Patent Office: 1,530 Days
• US Class Current: 313/506
• CPC Class Codes: H05B 33/145 Arrangements of the electroluminescent material
• CPC Class Codes: H05B 33/20 characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
• CPC Class Codes: H05B 33/26 characterised by the composition or arrangement of the conductive material used as an electrode

Claims

1. AN ELETROLUMINESCENT DEVICE ADAPTED TO EMIT IN DIFFERENT PREDETERMINED COLORS AND COMPRISING:

AND ELECTRICALLY INSULATING FOUNDATION;

A FIRST CONDUCTING LAYER CARRIED ON A SUBSTANTIAL PORTION OF SAID FOUNDATION;

A FIRST CONTACT AREA FORMED BY A PORTION OF SAID FIRST CONDUCTING LAYER PROXIMATE AN EDGE PORTION OF SAID FONDATION;

SECOND, THIRD AND FOURTH ELECTRICALLY CONDCTING CONTACT AREAS CARRIED ON PORTIONS OF SAID FONDATION WHICH ARE UNCOATED WITH SAID FIRST CONDUCTING LAYER AND EACH POSITIONED PROXIMATE EDGE PORTIONS OF SAID FONDATION;

SAID CONTACT AREAS EACH ELECTRICALLY INSULATED FROM ONE ANOTHER;

A FIRST ELECTRICALLY INSULATING LIGHT-TRANSMITTING LAYER COMPRISING POSPHOR WHICH ELECTROLUMINESCES WITH A FIRST PRESELECTED COLOR CARRIED ON A SUBSTANTIAL PORTION OF SAID FIRST CONDUCTING LAYER AND OVERLAPPING ONTO SAID CONTACT AREAS;

A SECOND ELECTRICALLY CONDUCTING LAYER WHICH IS LIGHT TRANSMITTING CARRIED ON A SUBSTANTIAL PORTION OF SAID FIRST INSULATING LAYER COMPRISING PHOSPHOR AND ALSO CONNECTING TO A PORTION OF SAID SECOND CONTACT AREA;

A SECOND ELECTRICALLY INSULATING LIGHT-TRANSMITTING LAYER COMPRISING PHOSPHOR WHICH ELECTROLUMINESCES WITH A SECOND PREDETERMINED COLOR CARRIED ON SAID SECOND CONDUCTING LAYER AND OVERLAPPING ONTO SAID CONTACT AREAS;

A THIRD ELECTRICALLY CONDUCTING LAYER WHICH IS LIGHT TRANSMITTING CARRIED ON A SUBSTANTIAL POSTION OF SAID SECOND INSULATING LAYER COMPRISING PHOSPHOR AND ALSO CONNECTING TO A PORTION OF SAID THIRD CONTACT AREA;

A THIRD INSULATING LIGHTTRANSMITTING LAYER COMPRISING PHOSPHOR WHICH ELECTROLUMINESCES WITH A THIRD PRESELECTED COLOR CARRIED ON SAID THIRD CONDUCTING LAYER AND OVERLAPPING ONTO SAID CONTACT AREAS;

A FOURTH ELECTRICALLY CONDUCTIN GLAYER CARRIED ON A SUBSTANTIAL PORTION OF SAID THIRD INSULATING LAYER COMPRISING PHOSPHOR AND ALSO CONNECTING TO A PORTION OF SAID FOURTH CONTACT AREA;

AT LEAST ONE OF SAID FIRST AND FOURTH ELECTRICALLY CONDUCTING LAYERS COMPRISING A VIEWING FACE FOR SAID DEVICE WITH ALL MATERIAL COMPRISING SUCH VIEWING FACE BEING LIGHT TRANSMITTING;

AND ENERGIZING POTENTIALS ADAPTED TO E ELECTRICALLY CONNECTED TO SAID FIRST, SECOND, THIRD AND FOURTH CONTACT AREAS.