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Inverted type transparent organic electroluminescent device and preparation method thereof

A luminescent and inverted technology, applied in the field of electric light sources, can solve the problems of limiting the application range of OLEDs, low luminous intensity, and concentration of unfavorable light, so as to improve lifespan and luminous stability, broaden the application range, and improve luminous performance effect

Active Publication Date: 2015-03-11
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the current OLED has the above-mentioned advantages, there are also shortcomings, such as OLEDs emit light from both sides when they are powered on, and the luminous intensity is not high.
Among them, the double-sided OLED is not conducive to the concentration of light, which limits the application range of the OLED, such as the use in the field of lighting sources

Method used

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  • Inverted type transparent organic electroluminescent device and preparation method thereof
  • Inverted type transparent organic electroluminescent device and preparation method thereof
  • Inverted type transparent organic electroluminescent device and preparation method thereof

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preparation example Construction

[0041] The embodiment of the present invention also provides a method for preparing the above-mentioned inverted transparent organic electroluminescent device, the process flow chart of the method is as follows Figure 4 shown, see also figure 1 or figure 2 or image 3 , the method includes the following steps:

[0042] S1. Provide a transparent substrate with an opposite first surface and a second surface, and form an array-distributed concave lens 11-type concave portion on the first surface of the transparent substrate to prepare a transparent substrate 1; wherein, the first surface of the transparent substrate Constituting the first surface of the light-transmitting substrate 1, the second surface of the transparent substrate is the second surface of the light-transmitting substrate 1;

[0043] S2. Plating a transparent cathode 2 on the second surface of the transparent substrate 1;

[0044] S3. Coating an organic electroluminescent structure 3 on the surface of the t...

Embodiment 1

[0055] The structure of the inverted transparent organic electroluminescence device of this embodiment is as follows figure 1 As shown, the inverted transparent organic electroluminescent device includes a transparent substrate 1 , a conductive layer 21 , an Al layer 23 , an electron transport layer 32 , a light emitting layer 33 , a hole transport layer 34 and a transparent anode 4 sequentially combined. Wherein, the transparent substrate 1 has opposite first surface and second surface, the first surface has a concave portion of concave lens type 11, the concave portion has a concave surface 12, the second surface is combined with the transparent anode 2, the second surface is a plane, concave lens 11 are distributed in an array on the first surface, the diameter of the concave lens 11 is 20 μm, and the focal length is 30 μm; the conductive layer 21 and the Al layer 23 constitute the transparent cathode 2; the electron transport layer 32, the light-emitting layer 33 and the ho...

Embodiment 2

[0063] The structure of the inverted transparent organic electroluminescence device of this embodiment is as follows figure 2 As shown, the inverted transparent organic electroluminescent device includes a transparent substrate 1, a conductive layer 21, an Ag layer 22, an Al layer 23, an electron injection layer 31, a red light emitting layer 331, a blue light emitting layer 333, and a hole injection layer 35 , transparent anode 4 and anti-reflection film layer 5 . Wherein, the transparent substrate 1 has opposite first surface and second surface, the first surface has a concave portion of concave lens type 11, the concave portion has a concave surface 12, the second surface is combined with the transparent anode 2, the second surface is a plane, concave lens 11 are distributed in an array on the first surface, the diameter of the concave lens 11 is 10 μm, and the focal length is 20 μm; the conductive layer 21, the Ag layer 22, and the Al layer 23 constitute the transparent c...

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Abstract

The invention discloses an inverted type transparent organic electroluminescent device and a preparation method thereof the inverted transparent organic electroluminescent device. The inverted type transparent organic electroluminescent device comprises a transparent substrate, a transparent cathode, an organic electroluminescent structure and a transparent anode, wherein the transparent substrate is provided with a first surface and a second surface which are opposite to each other; concave lens type concave parts are distributed in an array form on the first surface; the transparent cathode is combined with the second surface of the transparent substrate; the organic electroluminescent structure is combined with the surface of the transparent cathode opposite to the transparent substrate; the organic electroluminescent structure comprises at least one luminescent layer; and the transparent anode is combined with the surface of the organic electroluminescent structure opposite to the transparent cathode. The inverted type transparent organic electroluminescent device provided by the invention is transparent under power-off state and emits light from a single surface under power-on state; the emitted light is ejected from the transparent cathode; the luminance is high; and the luminescence property is stable.

Description

technical field [0001] The invention belongs to the technical field of electric light sources, and in particular relates to an inverted transparent organic electroluminescent device and a preparation method thereof. Background technique [0002] The electric light source industry has always been a hotspot of research by countries all over the world, and occupies a very important position in the world economy. At present, the widely used light source is gas discharge light source. The principle of this light source is to fill the inside of the lamp with a mixed gas containing mercury after vacuuming, and use gas discharge to emit light or ultraviolet light generated by gas discharge to excite phosphors to emit light. However, the pulsed flashes of gas discharge light sources can easily cause visual fatigue, and mercury pollutes the environment. With the advancement of society and technology, research and development of energy-saving and environmentally friendly green light so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/56
Inventor 周明杰王平钟铁涛陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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