OLED device containing light extraction film adhesion promotion layer

A technology of adhesion promotion layer and light extraction film, which is applied in the field of OLED devices, can solve problems such as difficulty in finding a balance between hardness and adhesion, deterioration of light extraction film hardness, and influence of light extraction efficiency, etc., to achieve mass production, The effect of low cost and not easy to wear

Active Publication Date: 2018-05-29
江苏壹光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the heterogeneous system of astigmatism particles and polymers, the adhesion on glass will be poor if higher hardness is to be obtained; enhancing the adhesion will make the hardness of the light extraction film worse, and the film is easier to scratch , the light extraction efficiency will be affected, so it is difficult to find a balance between hardness and adhesion

Method used

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  • OLED device containing light extraction film adhesion promotion layer
  • OLED device containing light extraction film adhesion promotion layer
  • OLED device containing light extraction film adhesion promotion layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 Preparation of OLED device without adhesion promotion layer of light extraction film

[0038] The preparation method of the OLED device without the adhesion promotion layer of the light extraction film includes the following steps: (see figure 2 )

[0039] Step 1. The cleaning machine cleans the 370mmX470mm alkali-free glass substrate 100, removes the surface oil and particle impurities, and removes water, see figure 2 a;

[0040] Step 2. Prepare bottom-emitting OLED device 101 by evaporation method, and the emitted light is emitted from the surface of the substrate (light-emitting surface) without OLED device, see figure 2 b;

[0041] Step 3: Spin-coating a spin-coating solution containing zirconia, titanium oxide scattering particles and high molecular polymer on the light-emitting surface of the glass substrate 100, and spraying a spraying solution containing acrylate and epoxy resin after UV curing, and then UV curing again Obtain the light extraction film 102,...

Embodiment 2

[0043] Example 2 Preparation of OLED device containing light extraction film adhesion promotion layer

[0044] The OLED device of the present invention containing a light extraction film adhesion promoting layer, such as figure 1 As shown, contains:

[0045] a) Glass substrate (100);

[0046] b) An OLED device (101) made on a glass substrate, which is a bottom-emitting device, and the light emitted is injected into the air through the glass substrate;

[0047] c) The light extraction film (102) provided on the side of the glass substrate without the OLED device;

[0048] d) An adhesion promoting layer (103) provided between the light extraction film (102) and the glass substrate (100).

[0049] The preparation method of the OLED device of the present invention includes the following steps (see image 3 ):

[0050] Step 1. The cleaning machine cleans the 370mmX470mm alkali-free glass substrate 100, removes the surface oil and particle impurities, and removes water, see image 3 a;

[0051...

Embodiment 3

[0055] Example 3 Preparation of OLED device containing light extraction film adhesion promotion layer

[0056] The OLED device of the present invention containing a light extraction film adhesion promoting layer, such as figure 1 As shown, contains:

[0057] a) Glass substrate (100);

[0058] b) An OLED device (101) made on a glass substrate, which is a bottom-emitting device, and the light emitted is injected into the air through the glass substrate;

[0059] c) The light extraction film (102) provided on the side of the glass substrate without the OLED device;

[0060] d) An adhesion promoting layer (103) provided between the light extraction film (102) and the glass substrate (100).

[0061] The preparation method of the OLED device of the present invention includes the following steps (see image 3 ):

[0062] Step 1. The cleaning machine cleans the 370mmX470mm alkali-free glass substrate 100, removes the oil stains and particulate impurities on the surface, and removes water, see i...

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Abstract

The invention provides an OLED device containing a light extraction film adhesion promotion layer. The OLED device includes a glass substrate (100), an OLED unit (101) manufactured on the glass substrate; a light extraction film (102) arranged on one side of the glass substrate without the OLED unit; and an adhesion promotion layer arranged between the light extraction film (102) and the glass substrate (100), wherein the unit is a bottom light-emitting device; and the emitted light enters the air through the glass substrate. The invention has the following technical effects that the adhesionpromotion layer is transparent and thin, the light extraction efficiency of the OLED lighting device and the light extraction efficiency of the light extraction film are hardly influenced. The light extraction film of the OLED device prepared by the method has good adhesive force on the glass substrate, and is not easy to wear and scratch; meanwhile, the adhesion promotion layer is easy to prepare, short in time consumption and low in cost, and is particularly suitable for large-scale production.

Description

Technical field [0001] The invention relates to an OLED device, in particular to an OLED device containing a light extraction film and an adhesion promoting layer. Background technique [0002] Organic light-emitting diodes (OLEDs) are receiving more and more attention for their unique advantages such as high luminous efficiency, fast response, wide viewing angle, energy saving and environmental protection, and no blue light hazards. They are expected to replace energy-saving lamps and LEDs as the fourth-generation lighting and Special light source. [0003] The structure of an OLED device generally includes a glass substrate on which a bottom electrode is fabricated, a multilayer organic light-emitting material and a top electrode are fabricated on the glass substrate, and the device emits light after the two electrodes are energized; the bottom of the so-called bottom-emitting device The electrodes are transparent or semi-transparent. The light emitted by the device is transmitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/85H10K50/854H10K71/00
Inventor 田元生刘玉龙卢泓
Owner 江苏壹光科技有限公司
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