Light emitting element, light emitting element manufacturing method and illuminating device

A technology for a light-emitting element and a manufacturing method, which is applied to lighting devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve problems such as hindering the miniaturization of devices, and achieve the effects of increasing the occupied space and simplifying the process.

Inactive Publication Date: 2010-06-30
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the installation of these additional various optical elements, it is necessary to have space for installing the various optical elements in various devices to which the light-emitting element is mounted, which becomes a bottleneck hindering the miniaturization of the device. its improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] (Method of manufacturing organic EL element)

[0141] The glass substrate formed by patterning ITO with a film thickness of about 150 nm formed by the sputtering method is cleaned with organic solvents, alkaline cleaning agents, and ultrapure water, and dried, and then ultraviolet-ozone ( UV-O 3 ) Device (manufactured by Technovision Co., Ltd., trade name "MODEL 312UV-O 3 Cleaning system'') UV-O on the dried substrate 3 Treatment (Liquefaction treatment).

[0142] The suspension of poly(3,4)ethylenedioxythiophene / polystyrenesulfonic acid (manufactured by HC Starck-V Tech, trade name "Bytron P TPAI 4083") was filtered with a filter with a diameter of 0.5 μm, and then Using spin coating, the suspension was formed into a film with a thickness of 70 nm on the ITO surface side of the substrate, and then dried on a hot plate at 200° C. for 10 minutes in the atmosphere.

[0143] Next, a solvent prepared by mixing xylene and anisole at a ratio of 1:1 was used to prepare a polymer org...

Embodiment 2

[0153] After the organic EL element was produced by the same method as in Example 1, the substrate was transferred from the vapor deposition chamber to the membrane sealing device (manufactured by VITEX, USA, trade name "Guardian 200") without being exposed to the atmosphere . Align the mask on the substrate. Next, the substrate is transferred to an inorganic film forming chamber, and a sputtering method is used to form a film of aluminum oxide as the first inorganic layer. Using an Al metal target with a purity of 5N, argon and oxygen were introduced to form a film of aluminum oxide on the substrate. Thus, a transparent and flat aluminum oxide film with a thickness of about 60 nm is obtained. Then, through the vacuum evaporation method, to about Coumarin 6 (manufactured by Aldrich, trade name "coumarin 6"), which is the color conversion material, is formed into a film with a vapor deposition speed of The color conversion layer.

[0154] After the color conversion layer is ...

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PUM

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Abstract

A light emitting element having light extracting side of a light emitting section sealed with a multilayer sealing film is characterized in including at least one color conversion layer in the laminate of the multilayer sealing film. A light emitting element manufacturing method is provided for manufacturing the light emitting element having the light extracting side of the light emitting section sealed with the multilayer sealing film, and is characterized in forming at least one color conversion layer in the laminate of the multilayer sealing film. The light emitting element incorporates a function of controlling color conversion of extracted light without increasing the space occupied by the element.

Description

Technical field [0001] The present invention relates to a light-emitting element represented by an organic electroluminescence element (hereinafter sometimes referred to as an organic EL element), a manufacturing method thereof, and a lighting device. In more detail, the present invention relates to a light-emitting element capable of performing color conversion of extracted light by providing a color conversion layer in a multilayer sealing film that seals the light-emitting layer, a manufacturing method thereof, and a lighting device using the light-emitting element Device. Background technique [0002] In light-emitting elements such as organic EL elements and light-emitting diode display elements, a light-emitting layer sandwiched between an anode and a cathode is laminated on a substrate, and a multilayer sealing film is laminated so as to cover the light-emitting layer. In the previous light-emitting elements, glass substrates were used as substrates. However, in order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/12H01L51/50H05B33/04H05B33/10
CPCH05B33/14H01L51/5036H01L51/007H01L51/5237H10K85/6565H10K50/125H10K50/8445Y02B20/30
Inventor 田中慎也森岛进一
Owner SUMITOMO CHEM CO LTD
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