El light emitting device

• US 20050152125A1
• Filed: 05/15/2003
• Published: 07/14/2005
• Est. Priority Date: 05/17/2002
• Status: Active Grant

• Current Assignee: Print LABO Company Limited
• Original Assignee: Print LABO Company Limited
• Inventors: Fukuda, Shinsaku
• Granted Patent: US 7,105,998 B2
• Time in Patent Office: Days
• US Class Current: 362/84
• CPC Class Codes: H05B 33/04 Sealing arrangements , e.g. against humidity
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations

Abstract

An EL light emitting device has: an EL light emitting layer having an EL light emitting material element; and an electrode section having a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern, wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and a waterproof layer of a synthetic resin is arranged between the first electrode and the second electrode, and the EL light emitting layer.

Claims

1. An EL light emitting device comprising:

an EL light emitting layer comprising an EL light emitting material element; and

an electrode section comprising a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern,

wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and a waterproof layer of a synthetic-resin is arranged between the first electrode and the second electrode, and the EL light emitting layer.

2. An EL light emitting device comprising:

an EL light emitting layer comprising an EL light emitting material element; and

an electrode section comprising a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern,

wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and a waterproof layer of a synthetic resin is arranged between one of the first electrode and the second electrode, and the EL light emitting layer.

3. An EL light emitting device comprising:

an EL light emitting layer comprising an EL light emitting material element;

an electrode section comprising a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern; and

a reflecting layer arranged in one surface side of the EL light emitting layer,

wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and the reflecting layer has a penetration prevention function and is arranged between at least one of the first electrode and the second electrode, and the EL light emitting layer.

4. An EL light emitting device comprising:

an EL light emitting layer comprising an EL light emitting material element;

an electrode section comprising a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern; and

a substrate sheet arranged in one surface side of the EL light emitting layer,

wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and the substrate sheet has a penetration prevention function and is arranged between at least one of the first electrode and the second electrode, and the EL light emitting layer.

5. An EL light emitting device comprising:

an EL light emitting layer comprising an EL light emitting material element; and

an electrode section comprising a first electrode and a second electrode which are arranged in one surface side of the EL light emitting layer to be close to each other, and to be electrically separated from each other with a spacing region, to have a predetermined pattern,

wherein an alternating current electric field forming element to form an alternating current electric field in the EL light emitting layer by an alternating current power supply voltage applied between the first electrode and the second electrode enables to adhere to the other surface side of the EL light emitting layer, and the EL light emitting layer has a penetration prevention function.