Inverted oleds on hard plastic substrate

• US 5,693,956 A
• Filed: 07/29/1996
• Issued: 12/02/1997
• Est. Priority Date: 07/29/1996
• Status: Expired due to Term

• Current Assignee: Universal Display Corporation
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Lee, Hsing-Chung, Shi, Song Q., Wei, Cheng-Ping
• Primary Examiner(s): MINTEL, WILLIAM A
• Application Number:
  US08/688,632
• Time in Patent Office: 491 Days
• Field of Search: 257/40, 257/103, 257/99, 257/88, 257/100, 257/91, 257/679, 257/680
• US Class Current: 257/40
• CPC Class Codes: G06K 19/07703 the interface being visual
• CPC Class Codes: H10K 2102/3026 Top emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/80 Constructional details
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00

Abstract

A hard plastic card display device including a hard plastic card having a major surface and a driver circuit. A display, including a plurality of inverted organic light emitting diodes, is formed on the major surface and coupled to the driver circuit.

Claims

1. An organic light emitting diode device comprising:

a plastic substrate having a major surface including a well; and

an inverted organic light emitting diode formed in the well on the major surface of the plastic substrate and inverted so as to emit light away from the plastic substrate, the inverted organic light emitting diode including a moisture and oxygen barrier layer formed in the well on the major surface, a plurality of interconnects formed on the barrier layer, a metal alloy formed on the plurality of interconnects, an organic electroluminence media layer formed on the metal alloy, and a transparent conductor formed on the organic electroluminence media layer.

2. An organic light emitting diode device as claimed in claim 1 where the plastic substrate includes a plastic card selected from one of a smart card, a credit card, and an identification card.

3. An organic light emitting diode device as claimed in claim 1 further including a transparent dielectric media encapsulating and sealing the organic light emitting diode in the well.

4. An organic light emitting diode device as claimed in claim 1 where the plastic substrate includes a driver circuit coupled to the plurality of interconnects.

5. A plastic card display device comprising:

a plastic card selected from one of a smart card, a credit card, and an identification card, including a major surface defining a well and a driver circuit;

a display formed on the major surface and coupled to the driver circuit, the display including a plurality of inverted organic light emitting diodes positioned in the well and encapsulated and sealed by a transparent dielectric media, the inverted organic light emitting diodes being inverted so as to emit light away from the plastic substrate, each inverted organic light emitting diode including a moisture and oxygen barrier layer formed on the major surface, a plurality of interconnects formed on the barrier layer and coupled to the driver circuit, a metal alloy formed on the plurality of interconnects, an organic electroluminence media layer formed on the metal alloy, and a transparent conductor formed on the organic electroluminence media layer.

6. A display device as claimed in claim 5 wherein the plurality of organic light emitting diodes are formed in an array having a plurality of pixels defined by rows and columns.