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Organic electroluminescent device and method of manufacturing the same

A luminescent and organic technology, applied in the field of organic electroluminescent devices and its manufacturing, can solve the problems of increasing process costs and not being suitable for mass production

Active Publication Date: 2009-05-27
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this stacking method increases the process cost and is not suitable for mass production

Method used

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  • Organic electroluminescent device and method of manufacturing the same
  • Organic electroluminescent device and method of manufacturing the same
  • Organic electroluminescent device and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 26.00 g TEOS28 was added to 52.32 g ethanol and stirred for 15 minutes. Then 9.3 g of glycidoxypropyltrimethoxysilane (GPTS) was added thereto and stirred for 1 hour. Next, a catalyst solvent mixed with 11.23 g of pure water (PW) and 0.61 g of 60% nitric acid was gradually added to the resulting mixture, and stirred at room temperature to prepare an organic-inorganic composite membrane composition.

[0048] The composition of the organic-inorganic composite film is spin-coated on the upper surface of the cathode of the organic light-emitting unit at a speed of 300-800rpm, and then cured in an oven for 1 hour, and the temperature has been adjusted to 70°C in advance to form an organic- Inorganic composite membrane. Thus, the fabrication of the organic electroluminescence device was completed.

Embodiment 2-4

[0050] The manufacturing method of the organic electroluminescent device is the same as that of Example 1, except that the contents of TEOS28, GPTS, PW and nitric acid are as shown in Table 1 below.

[0051] project TEOS28

Embodiment 5

[0053] 24.92g TEOS28 was added to 49.65g ethanol and stirred for 15 minutes. Then 9.91 g of methacryloxypropyltrimethoxysilane (MPTMS) and 0.87 g of methacrylic acid were added thereto and stirred for 1 hour. Next, a catalyst solvent mixed with 10.77 g of PW and 0.58 g of 60% nitric acid was gradually added to the resulting mixture, and stirred at room temperature for 24 hours to prepare an organic-inorganic composite membrane composition.

[0054] The composition of the organic-inorganic composite film is spin-coated on the upper surface of the cathode of the organic light-emitting unit at a speed of 300-800rpm, and then 80mW / cm 2 A high-power low-pressure mercury lamp is used for UV curing for 60 seconds to form an organic-inorganic composite film. Thus, the fabrication of the organic electroluminescence device was completed.

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Abstract

An organic electroluminescent device which has a low moisture permeability and an oxygen permeability. The organic electroluminescent device includes a substrate, an organic light-emitting unit having a sequentially stacked structure of a first electrode, an organic film, and a second electrode formed on a surface of the substrate, and an organic-inorganic composite film made of a dehydrated polycondensate of a hydrolyzed product of trialkoxy metal formed on an upper surface of the second electrode of the organic light-emitting unit. The organic-inorganic composite film simplifies a manufacture process and has high visible light transmittance. Therefore, the organic-inorganic composite film can be used as an intermediate layer of a front emission type organic electroluminescent device. Also, the organic-inorganic composite film has excellent prevention function of the entry of moisture and / or oxygen. Therefore, the encapsulation of the device is ensured even when a sealing substrate is not separately used, thereby decreasing the total thickness of the device and increasing the life span of the device.

Description

[0001] priority claim [0002] This application claims priority to Korean Patent Application 2003-31906 filed at the Korean Intellectual Property Office on May 20, 2003, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to an organic electroluminescence device and a manufacturing method thereof. In particular, the present invention relates to organic electroluminescent devices with long lifetimes and methods for their manufacture. Background technique [0004] Organic electroluminescent devices (organic EL devices) are self-emissive displays in which electrons and holes are recombined ( recombination) emits light. The organic EL device has advantages such as light weight, simple constituent elements, easy manufacturing process, excellent image quality and wide viewing angle. In addition, the organic EL device has electronic characteristics suitable for portable electronic equipment, such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/54H01L51/56H05B33/04H05B33/10C09K11/04H01L51/52H05B33/14H05B33/26
CPCH01L2251/5315Y10S428/917H05B33/04H01L51/5237Y10T428/26Y10T428/31663H10K50/844H10K2102/3026C09K11/04H10K50/841
Inventor 李钟赫赵尹衡李海承金元钟
Owner SAMSUNG DISPLAY CO LTD
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