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Organic light-emitting device and fabrication method and application thereof

An electroluminescent device and electroluminescent technology, which are applied in the manufacturing of organic semiconductor devices, electric solid-state devices, and semiconductor/solid-state devices, etc., can solve problems such as the inability to produce light-emitting areas, and the increase of production and maintenance costs for fine masks.

Active Publication Date: 2018-04-27
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the auxiliary electrode is usually opaque, it cannot be fabricated on the light-emitting area
At present, the auxiliary electrode is generally produced in the process of making the array array, and has a similar opening to the light-emitting area of ​​the pixel area. In order to ensure a good electrical connection with the top electrode, a fine mask is required when evaporating organic or inorganic functional layers. To prevent the auxiliary electrode from being covered with a semiconducting functional layer, and unable to form a direct connection with the top electrode, the use of a fine mask increases the cost of manufacturing and maintenance

Method used

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  • Organic light-emitting device and fabrication method and application thereof
  • Organic light-emitting device and fabrication method and application thereof
  • Organic light-emitting device and fabrication method and application thereof

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Embodiment Construction

[0048] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0050] refer to figure 1 , the present embodiment is an organic electroluminescent de...

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Abstract

The invention relates to an organic light-emitting device and a fabrication method and application thereof. The organic light-emitting device comprises a substrate and a pixel defining layer, whereinthe substrate comprises a pixel electrode region and an auxiliary electrode region, the pixel defining layer is formed between the pixel electrode region and the auxiliary electrode region, the pixelelectrode region comprises a pixel electrode, an organic function layer and a top electrode, the auxiliary electrode region comprises an auxiliary electrode, a conductive layer and a spacing layer, and the top electrode is connected with the conductive layer. In the organic light-emitting device, the conductive layer and the inverted trapezoid spacing layer are additionally arranged on the auxiliary electrode, thus, favorable electrical connection between the top electrode and the auxiliary electrode can be formed by the conductive layer, the problem that effective connection between the auxiliary electrode and the top electrode cannot be formed due to coverage of the organic function layer and application of an opening mask is solved, and the fabrication cost is reduced.

Description

technical field [0001] The invention relates to the technical field of light-emitting devices, in particular to an organic electroluminescence device and its preparation method and application. Background technique [0002] In the contemporary information society, the importance of display devices as a visual information transmission medium is further strengthened. In order to occupy a dominant position in the future, display devices are moving towards lighter, thinner, lower energy consumption, lower cost and better Trends in image quality. [0003] Organic light-emitting diodes (OLEDs) are currently the main direction of display device research because of their advantages such as self-luminescence, fast response, wide viewing angle, high brightness, and thinness. Among them, the top-emitting device has become a research hotspot this year because it can obtain a larger aperture ratio. However, due to the need to increase the light transmittance of the top-emitting device,...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/805H10K71/00H10K2102/3026
Inventor 陈亚文
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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