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Organic light emitting device and preparation method thereof

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

Active Publication Date: 2017-05-24
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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  • Organic light emitting device and preparation method thereof
  • Organic light emitting device and preparation method thereof
  • Organic light emitting device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

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 bus-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 the...

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 light emitting, and discloses an organic light emitting device. The organic light emitting device comprises a first electrode layer, an organic layer and a second electrode layer which are arranged in a stacked manner. The organic light emitting device is characterized by further comprising a short circuit prevention assembly which is directly arranged on the first electrode layer. The first electrode layer comprises a plurality of conductive units and a plurality of current-carrying bars used for loading current for each conductive unit. The short circuit prevention assembly comprises a plurality of flow guiding bars, a first auxiliary electrode layer and an insulating layer, wherein the flow guiding bars are arranged on the first electrode layer, each flow guiding bar is used for connecting at least two conductive units to the corresponding current-carrying bar in series, and the flow guiding bars are not directly conducted; the first auxiliary electrode layer directly covers the upper surfaces of the current-carrying bars and the flow guiding bars; and the insulating layer wraps the upper surface and the side surfaces of the first auxiliary electrode layer. The short circuit prevention assembly is arranged on a current conduction path of each pixel, thereby not only being capable of increasing the interval between electrodes, and effectively solving a short-circuit problem of the device. In addition, the flow guiding bars which connect a plurality of conductive units in series can effectively improve the aperture opening 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 Applications(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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