Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device

An electroluminescent device and electroluminescent technology, applied in the field of electronics, can solve problems such as large light loss, and achieve the effect of increasing light output and improving luminous efficiency

Active Publication Date: 2017-07-28
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, for OLED light-emitting devices, especially bottom-emitting device

Method used

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  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device
  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device
  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device

Examples

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Example Embodiment

[0057] Based on the above analysis of the inventor of this application, this application proposes a method such as image 3 The preparation method of the organic electroluminescent device shown, such as image 3 Shown, including:

[0058] Step 300: Adjust the grating period of the periodic grating structure so that the wavelength of the light wave coupled and emitted by the SP is within the preset range of the luminescence peak of the organic electroluminescent device.

[0059] Organic electroluminescent devices can be divided into two structures according to the direction of light exiting the device: one is a bottom-emitting device, and the other is a top-emitting device.

[0060] In this step, the grating period can be adjusted through the process. Taking the top-emitting device as an example, the grating period can be adjusted by changing the grating pattern period corresponding to the mask of the metal reflective anode. For example, the luminescence peak value of the organic ele...

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Abstract

The invention discloses a preparation method and a preparation device of an organic electroluminescence device and the organic electroluminescence device. The preparation method comprises steps of adjusting the optical grating period of a periodical optical grating structure so as to allow the wavelength of light waves coupled and emitted by an SP to be in a light emitting peak preset range of the organic electroluminescence device; and according to the obtained optical grating period, arranging the periodical optical grating structure in the organic electroluminescence device. By arranging the periodical optical grating structure in the organic electroluminescence device, the light waves are coupled to the SP, so it is achieved that photon energy lost at a metal electrode interface is taken back again through the regulation of the SPP, the light output of the organic electroluminescence device like an OLED is increased and the light emitting efficiency of the organic electroluminescence device like an OLED is improved.

Description

technical field [0001] The invention relates to but not limited to electronic technology, especially to a method and device for preparing an organic electroluminescent device and an organic electroluminescent device. Background technique [0002] The light-emitting process of an organic electroluminescent device is a process of energy transfer, which converts electrical energy into light energy. In this conversion process, an organic electroluminescent device can be regarded as an injection-type light-emitting diode. If a voltage is applied across both ends of the organic electroluminescent device, the electric field generated by this voltage causes electrons to be injected from the cathode of the device into the electron transport layer, while holes are injected from the cathode to the electron transport layer. The anode (anode) of the device is injected into the hole transport layer, and the two types of carriers migrate into the light-emitting layer and combine to form ex...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/85H10K71/00H10K50/813H10K50/822H10K50/858H10K50/16H10K50/818H10K59/10
Inventor 汪军赵策王东方周斌
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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