A kind of organic electroluminescent device and preparation method thereof

An electroluminescent device and luminescent technology, applied in the field of lighting, can solve the problems of affecting the aperture ratio of the device, high manufacturing cost, complex process of anti-short circuit structure, etc., and achieve the effect of simple structure, high product yield and small aperture ratio

Active Publication Date: 2019-03-29
GUAN YEOLIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, what the present invention is to solve is the problem that the existing anti-short circuit structure has complex process, high manufacturing cost, and affects the device aperture ratio.

Method used

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

Examples

Experimental program
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Embodiment 1

[0045] This embodiment provides an organic electroluminescent device, which includes a first electrode layer 2 , an organic layer and a second electrode layer stacked on a substrate 1 , and also includes a short-circuit prevention component directly arranged on the first electrode layer 2 .

[0046] Such as figure 1 As shown, the first electrode layer 2 includes several conductive units 3 and several current-carrying bars 4 for loading current to each conductive unit 3; flow bars 5, and the flow guide bars 5 are not directly connected.

[0047] It also includes a first auxiliary electrode layer 6 directly covering the upper surfaces of the current-carrying bars 4 and the current-guiding bars 5 , and an insulating layer 8 disposed on the first auxiliary electrode layer 6 .

[0048] As an embodiment of the present invention, in this embodiment, as image 3 As shown, the anti-short circuit assembly further includes: a second auxiliary electrode layer 7 directly disposed between...

Embodiment 2

[0065] This embodiment provides an organic electroluminescent device and its preparation scheme. The specific structure and process are the same as in Embodiment 1, the only difference is that, as Figure 4 , Figure 5 As shown, the current guide bar 5 is arranged between two adjacent columns of conductive units 3 at intervals, and both sides of the length direction of the current guide bar 5 are provided with a number of bending parts, which are used to connect four conductive units in two adjacent columns and two rows. Unit 3.

Embodiment 3

[0067] This embodiment provides an organic electroluminescent device and its preparation scheme. The specific structure and process are the same as in Embodiment 1, the only difference is that, as Figure 6 , Figure 7 As shown, the conductive pattern 5 is hexagonal, the current guide strip 6 is herringbone, and is arranged between two adjacent rows of conductive units 3, and several bending parts are provided on the same side of the length direction of the current guide strip 5 for connecting the same The direction is adjacent to two conductive units 3 .

[0068] As an alternative embodiment of the present invention, such as Figure 8 As shown, the current guide bar 6 is herringbone or x-shaped, and can be used to connect four adjacent conductive units.

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Abstract

The invention relates to the field of organic electroluminescence. The organic electroluminescence device includes a stacked first electrode layer, an organic layer and a second electrode layer, and also includes an anti-short circuit device directly arranged on the first electrode layer. Components; the first electrode layer, including a number of conductive units and a number of current-carrying bars that load current for each conductive unit; the anti-short circuit assembly includes: a number of current-guiding bars, arranged on the first electrode layer, and each current-carrying bar is used for series connection At least 2 conductive units to the current-carrying bar, and there is no direct conduction between the current-carrying bars; the first auxiliary electrode layer directly covers the upper surface of the current-carrying bar and the current-carrying bar, and the insulating layer wraps the first auxiliary electrode top and sides. The anti-short-circuit component is arranged on the conduction path of each pixel, which can not only increase the interval between electrodes, and effectively solve the short-circuit problem of the device; moreover, the current guide strip with multiple conductive units connected in series can effectively increase the aperture ratio of the device.

Description

technical field [0001] The invention relates to the lighting field, in particular to an organic electroluminescent device and a preparation method thereof. Background technique [0002] As a next-generation lighting technology, organic electroluminescent devices (English full name is Organic Light Emitting Device, referred to as OLED) have the advantages of surface emission, low heat dissipation, low energy consumption, lightness, and thinness. More importantly, my country's annual lighting electricity consumption is about 600 billion kWh, accounting for 12% of the country's annual electricity, and lighting emits 598 million tons of carbon dioxide every year. If OLED lighting is used to replace existing lighting, 400 billion kWh of electricity can be saved every year, and 399 million tons of carbon dioxide emissions can be reduced, which has important application value. [0003] A significant advantage of OLED lighting is that it can realize large-scale surface light source...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52
CPCH10K50/00H10K50/805H10K50/844
Inventor 李栋栋李曼谢静胡永岚朱映光
Owner GUAN YEOLIGHT TECH CO LTD
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