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Organic electroluminescent device and preparation method thereof

An electroluminescence device and luminescence technology, applied in the direction of circuits, electrical components, electric solid devices, etc., can solve the problems of high raw material cost and low brightness, achieve low manufacturing cost, reduce light reflectance, and improve viewing comfort Effect

Active Publication Date: 2015-04-01
北京维信诺光电技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For this reason, the present invention aims to solve the problems of low brightness and high cost of raw materials in existing methods for reducing the reflectance of organic electroluminescent devices, and provides an organic electroluminescent device with high brightness and low cost that can effectively prevent the reflection of ambient light at the same time. Device and its preparation method

Method used

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  • Organic electroluminescent device and preparation method thereof
  • Organic electroluminescent device and preparation method thereof

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Embodiment

[0033] This embodiment provides an organic electroluminescent device, such as figure 1 and 2 As shown, an organic light emitting diode layer formed on a substrate 10 is included, and the organic light emitting diode layer includes at least one organic light emitting diode. In this embodiment, there are multiple organic light emitting diodes (for clarity, figure 1 and figure 2 Only a partial view of the organic electroluminescent device is shown), which are arranged in an array separated by pixel defining layers 4 on the substrate 10 .

[0034] The organic light emitting diode includes a first electrode layer 1, a light emitting layer 2 and a second electrode layer 3 stacked in sequence, the first electrode layer 1 and / or the second electrode layer 3 are light-transmitting electrodes; the first electrode layer 1 and / or the second electrode layer 3 are light-transmitting electrodes; A matrix layer 5 is also arranged between the electrode layer 1 and the second electrode laye...

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Abstract

The invention belongs to the field of organic electroluminescence and relates to an organic electroluminescent device. Organic light emitting diodes are internally provided with black matrix layers; each matrix layer occupies a certain area proportion in each organic light emitting diode, so that light reflection area can be effectively reduced; a reflection rate of the organic electroluminescent device is reduced on the premise of not sacrificing brightness and power consumption of the organic electroluminescent device; and furthermore, the organic electroluminescent device is simple in structure and suitable for large-scale industrial production application. At the same time, the invention relates to a preparation method of the organic electroluminescent device. The purpose of reducing the reflection rate of the organic electroluminescent device on the premise of not sacrificing the brightness and the power consumption of the organic electroluminescent device can be achieved by arranging the matrix layers in the organic light emitting diodes only by a photoetching technology, the technology is simple, and the preparation cost is low.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to an organic electroluminescence device capable of effectively reducing the reflection of ambient light and a preparation method thereof. Background technique [0002] Organic electroluminescent device (English full name Organic Light-Emitting Display, referred to as OLED) is an active light-emitting device, which has the advantages of high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the next generation of mainstream flat-panel display technology. It is one of the most concerned technologies in flat panel display technology. [0003] An organic electroluminescent device usually includes at least one organic light-emitting diode (English full name Organic Light-Emitting Diode, referred to as OLED), and the organic light-emitting diode at least includes a transparent anode with a low work function, a cathode with a high ...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52H01L51/56
Inventor 于海莲徐粤
Owner 北京维信诺光电技术有限公司
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