Organic light-emitting device

An electroluminescent device and electroluminescent technology, applied in the direction of organic semiconductor devices, electric solid devices, electrical components, etc., can solve the problems of short-circuit light emission and unevenness, avoid short-circuits, increase the screen aperture ratio and aesthetics, The effect of avoiding large area short circuit

Pending Publication Date: 2019-02-01
GUAN YEOLIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that organic light-emitting devices are prone to short circuit and uneven light emission in the prior art, so as to provide an organic electroluminescent device, which does not use reticular metal Or in the case of an opaque mesh electrode auxiliary circuit, the effective light-emitting area can be increased, and at the same time, it has the advantages of high stability, high uniformity and aesthetics, and maintains a good anti-short circuit function

Method used

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Embodiment 1

[0052] Such as Figure 1 to Figure 6 As shown, the present invention provides an organic electroluminescent device, including a substrate 8, on which a first electrode layer, an organic layer 5 and a second electrode layer 9 are stacked, and the first electrode layer includes The first conductive layer 7, the first insulating layer 6, and the second conductive layer are stacked, and the second conductive layer is patterned into several conductive units 4;

[0053] Such as Figure 6 As shown, the first insulating layer 6 is patterned with a hollow structure 3 penetrating through the first insulating layer 6, and the hollow structure 3 communicates with the patterned area between the conductive units 4, and the first The electrical connection between the conductive layer 7 and the conductive unit 4 is realized through an adjustable resistance conductive layer; the adjustable resistance conductive layer includes a first adjustable resistance conductive layer 21 filled in the hol...

Embodiment 2

[0084] The device structure of this embodiment is as Figure 8-1 and Figure 8-2 As shown, the first insulating layer 6 is patterned with a hollow structure 3 penetrating through the first insulating layer 6, and the hollow structure is filled with a first adjustable resistance conductive layer 21 so that the first conductive layer 7 It is electrically connected with the conductive unit 4; the patterned area of ​​the second conductive layer is filled with the second insulating layer 1, and the hollow structure 3 can be as Figure 8-1 and 8-2 The position may also be located below the graphics area. The hollow structure 3 can also run through the second conductive layer at the same time, as long as the electrical connection between the first conductive layer 7 and the conductive unit 4 can be realized, and other parts are the same as in the embodiment 1, and will not be repeated in this embodiment.

Embodiment 3

[0086] The device structure of this embodiment is as Figure 9 As shown, the patterned area between the hollow structure 3 and the conductive unit 4 is connected, and the electrical connection between the first conductive layer 7 and the conductive unit 4 is realized through an adjustable resistance conductive layer; The adjustable resistance conductive layer includes a first adjustable resistance conductive layer 21 filled in the hollow structure 3 and a first adjustable resistance conductive layer 21 filled in the patterned area and electrically connected to the first adjustable resistance conductive layer 21. Two adjustable resistance conductive layers 22; the second insulating layer 1 covers the patterned area and the second adjustable resistance conductive layer 22 (in order to show the shape of the second adjustable resistance conductive layer 22, the top of it The covered second insulating layer 1 is on the top (not shown in the figure), and the other parts are the same...

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Abstract

The invention provides an organic light-emitting device. The organic light-emitting device comprises a substrate; a first electrode layer, an organic layer and a second electrode layer are stacked onthe substrate; the first electrode layer comprises a first conductive layer, a first insulating layer and a second conductive layer arranged in a stacked mode; the second conductive layer is patternedto a plurality of conductive units; the first insulating layer is patterned to a hollow structure penetrating the first insulating layer; the hollow structure is filled with a first adjustable resistive conductive layer to enable the first conductive layer to be electrically connected with the conductive unit; the patterned area of the second conductive layer is filled with a second insulating layer; and electric connection is realized between the first insulating layer and the conductive unit through the first adjustable resistive conductive layer. The organic light-emitting device with theshort circuit protection function and the brightness uniformity is designed successfully by using the impedance matching between the large-area transparent / translucent conductive circuit layer and theadjustable resistive conductive layer; and no metal wire as an auxiliary electrode is needed in the design, and the opening rate and the aesthetics of a screen body can be effectively increased.

Description

technical field [0001] The invention relates to an organic electroluminescent device, in particular to an organic electroluminescent device capable of preventing short-circuit phenomenon and emitting uniform light. Background technique [0002] The organic light-emitting phenomenon refers to a phenomenon in which electrical energy is converted into light energy by using an organic substance. That is, when an appropriate organic layer is arranged between the anode and the cathode, when a voltage is applied between the two electrodes, holes are injected from the anode into the organic layer, and electrons are injected from the cathode into the organic layer. Excitons are formed when the injected holes and electrons meet, and light is generated when the excitons fall back to the ground state. [0003] Dust particles, burrs, pinholes, cracks and other defects inevitably exist in the manufacturing process of OLED screens, and the distance between the anode and cathode of OLED sc...

Claims

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Application Information

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IPC IPC(8): H01L51/52
CPCH10K50/805H10K2102/341
Inventor李育豪朱映光谢静胡永岚于倩倩
OwnerGUAN YEOLIGHT TECH CO LTD