A kind of organic electroluminescent device and preparation method thereof

An electroluminescent device and organic light-emitting layer technology, which is applied to organic light-emitting devices, organic light-emitting device structures, circuits, etc., can solve the problems of high square resistance of the cathode layer and cannot be used normally, so as to reduce reflected light and improve electrical conductivity. , reduce the effect of IR pressure drop

Active Publication Date: 2017-09-29
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology

[0005] For this reason, what the present invention aims to solve is the problem that the cathode layer of the existing top-emission organic electroluminescent display device has high square resistance and cannot be used normally under a strong light environment, thereby providing a kind of cathode layer with low square resistance and less reflected light. Organic electroluminescence display device and preparation method thereof

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  • A kind of organic electroluminescent device and preparation method thereof
  • A kind of organic electroluminescent device and preparation method thereof

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention in conjunction with the accompanying drawings.

[0029] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or present middle element. In contrast, when an element is referred to as bei...

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Abstract

The invention belongs to the field of organic electroluminescence. The organic electroluminescence device includes a first substrate, a second substrate, and a plurality of light-emitting units, corresponding to the non-light-emitting areas of each light-emitting unit, and stacked with a light-absorbing layer and a conductive layer. . The conductive layer is in contact with the second conductive layer in the light-emitting unit, which can improve the conductivity of the second electrode layer and reduce the IR voltage drop; the light-absorbing layer is arranged in the non-light-emitting area to effectively reduce the reflected light of the first electrode layer, thereby effectively reducing The influence of ambient light on the display effect. In the preparation method of the organic electroluminescent device, the light absorbing layer, the conductive layer and the light-emitting unit are firstly formed on the second substrate, and then the first substrate is fastened on the light-emitting unit for packaging. The second electrode layer of the light-emitting unit is directly prepared on the conductive layer, which can be effectively attached to the second electrode layer, reduces the risk of disconnection, and improves the reliability of connection. At the same time, the preparation of the double plate process effectively reduces the working hours and improves the production efficiency.

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 square resistance of a cathode 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, thinner volume, etc., and is expected to become the mainstream flat panel display technology of the next generation. It is one of the most concerned technologies in display technology. [0003] According to the light emitting direction of the organic light emitting diode in the organic electroluminescent device, the organic electroluminescent device can be divided into a bottom emission device and a top emission device. Since the light of the bottom emission device passes through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/56H01L27/32
CPCH10K59/88H10K50/11H10K50/85H10K59/10H10K2102/302H10K71/00
Inventor 刘巍
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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