Light emitting device

• US 20070114542A1
• Filed: 01/12/2007
• Published: 05/24/2007
• Est. Priority Date: 05/15/2002
• Status: Active Grant

• Current Assignee: Shunpei Yamazaki, Yasuyuki Arai
• Original Assignee: Shunpei Yamazaki, Yasuyuki Arai
• Inventors: Arai, Yasuyuki, Yamazaki, Shunpei
• Granted Patent: US 7,675,074 B2
• Time in Patent Office: Days
• US Class Current: 257/79
• CPC Class Codes: B82Y 10/00 Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
• CPC Class Codes: H10K 10/464 Lateral top-gate IGFETs comprising only a single gate
• CPC Class Codes: H10K 10/466 Lateral bottom-gate IGFETs comprising only a single gate
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/80 Constructional details
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 50/85 Arrangements for extracting light from the devices
• CPC Class Codes: H10K 50/856 comprising reflective means
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/125 including organic TFTs [OTFT]
• CPC Class Codes: H10K 59/17 Passive-matrix OLED displays
• CPC Class Codes: H10K 59/179 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 85/113 Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene

Abstract

A light emitting device having a plastic substrate is capable of preventing the substrate from deterioration with the transmission of oxygen or moisture content can be obtained. The light emitting device has light emitting elements formed between a lamination layer and an inorganic compound layer that transmits visual light, where the lamination layer is constructed of one unit or two or more units, and each unit is a laminated structure of a metal layer and an organic compound layer. Alternatively, the light emitting device has light emitting elements formed between a lamination layer and an inorganic compound layer that transmits visual light, where the lamination layer is constructed of one unit or two or more units, and each unit is a laminated structure of a metal layer and an organic compound layer, wherein the inorganic compound layer is formed so as to cover the end face of the lamination layer. In the present invention, the lamination layer is formed on the primary surface of the plastic substrate, so that a flexible substrate structure can be obtained while preventing the substrate from deterioration with the transmission of oxygen or moisture content.

Claims

1. A light emitting device comprising:

a lamination layer, the lamination layer comprising a metal layer and an organic compound layer;

an inorganic compound layer that transmits visual light; and

a light emitting element formed between the lamination layer and the inorganic compound layer.