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Organic electroluminescent device, fabrication process of organic electroluminescent device, display device, and fabrication process of display device

A technology of electroluminescent components and display devices, which is applied in the direction of electroluminescent light sources, electrical components, organic semiconductor devices, etc., can solve the problems of hindering injection into the light-emitting functional layer and increasing the driving voltage, so as to improve the service life characteristics and reduce the Driving voltage, effect of improving luminous efficiency

Inactive Publication Date: 2009-03-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This hinders the injection of holes from the anode into the light-emitting functional layer, which becomes the main reason for the significant increase in the driving voltage

Method used

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  • Organic electroluminescent device, fabrication process of organic electroluminescent device, display device, and fabrication process of display device
  • Organic electroluminescent device, fabrication process of organic electroluminescent device, display device, and fabrication process of display device
  • Organic electroluminescent device, fabrication process of organic electroluminescent device, display device, and fabrication process of display device

Examples

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Effect test

Embodiment

[0116] Refer below Figure 1A and Figure 1B , illustrating examples and comparative examples applying the method for manufacturing an organic electroluminescent element of the present invention, and then giving their evaluation results. In each of Examples and Comparative Examples, a surface-emitting organic electroluminescent element having a cavity structure was fabricated. The materials of the layers used in the respective Examples and Comparative Examples are shown in Table 8 below.

[0117] Table 8

[0118]

[0119] On the substrate 2 made of a glass plate of 30 mm x 30 mm, reflective material layers (anodes) 11 a with a thickness of 200 nm constituting the lower electrodes 11 were formed using the materials shown in Table 8, respectively. It should be noted that in Comparative Example 3 and Comparative Example 5, transparent electrodes made of ITO and corresponding to the reflective material layer (anode) 11a were formed, respectively.

[0120] Through a photolit...

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PUM

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Abstract

The invention relates to an organic electroluminescent device and a method of manufacturing the same and a display device and a method of manufacturing the same, wherein the organic electroluminescent device is provided with a substrate, and a lower electrode, a luminous functional layer including an organic luminous layer and an upper electrode laminated on the substrate, thereby emitting the light generated in the organic luminous layer from one side of the upper electrode. The lower electrode comprises a reflecting material layer made of metals, an oxide film arranged on the surface of thereflecting material layer and a metal film arranged on the oxide film. In the surface luminous organic electroluminescent device, luminous efficiency is increased and driving voltage is reduced. Therefore, service life performance of the organic electroluminescent device is improved.

Description

[0001] Cross References to Related Applications [0002] The present invention contains subject matter related to Japanese Patent Application JP 2007-236193 filed in the Japan Patent Office on Sep. 12, 2007, the entire content of which is hereby incorporated by reference. technical field [0003] The present invention relates to a surface-emitting organic electroluminescent element and a manufacturing method thereof, and also to a display device using a plurality of such organic electroluminescent elements and a manufacturing method thereof. Background technique [0004] As one type of flat panel displays, various display devices using organic electroluminescent elements have attracted attention. The organic electroluminescence element is a self-luminous type element utilizing the organic electroluminescence phenomenon, and a light-emitting functional layer including an organic light-emitting layer is provided between two electrodes. A display device using a plurality of su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56H01L27/32H01L21/82
CPCH01L2251/5315H01L51/0072H01L51/5265H01L51/5206H01L27/3246H01L51/5088H05B33/26H10K59/122H10K85/6572H10K50/17H10K2102/3026H10K59/8051H10K59/80518H10K59/876H10K85/631H10K50/818H10K50/852
Inventor 神户江美子吉永祯彦鬼岛靖典柏原充宏山田弘和
Owner SONY CORP
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