Organic electroluminescent device

An electroluminescent device and luminescence technology, which is applied in the direction of organic semiconductor devices, electric solid devices, organic semiconductor device materials, etc., can solve the problems of short service life and achieve long service life and reduce the effect of water and oxygen penetration

Inactive Publication Date: 2014-09-24
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an organic electroluminescent device with a long service life in view of the short service life of existing organic electroluminescent devices

Method used

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  • Organic electroluminescent device
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  • Organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] After the glass substrate is cleaned and dried, an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode are sequentially formed on the glass substrate by vacuum evaporation, and an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode The organic light-emitting unit stacked on the glass substrate is sequentially stacked, and the organic light-emitting unit is arranged in the middle of the glass substrate and covers part of the surface of the glass substrate; wherein, the anode is formed of indium tin oxide, and the thickness of the anode is 100 nanometers; the hole The transport layer is formed of N,N'-diphenyl-N,N'-di(1-naphthyl)-1,1'-biphenyl-4,4'-diamine, and the thickness of the hole transport layer is 50 nanometer; the light-emitting layer is formed by (8-hydroxyquinoline)-aluminum, and the thickness of the light-emitting layer is 30 nanometers; the electron injection layer is for...

Embodiment 2

[0074] After the glass substrate is cleaned and dried, an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode are sequentially formed on the glass substrate by vacuum evaporation, and an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode The organic light-emitting unit stacked on the glass substrate is sequentially stacked, and the organic light-emitting unit is arranged in the middle of the glass substrate and covers part of the surface of the glass substrate; wherein, the anode is formed of indium tin oxide, and the thickness of the anode is 100 nanometers; the hole The transport layer is formed of N,N'-diphenyl-N,N'-di(1-naphthyl)-1,1'-biphenyl-4,4'-diamine, and the thickness of the hole transport layer is 50 nanometer; the light-emitting layer is formed by (8-hydroxyquinoline)-aluminum, and the thickness of the light-emitting layer is 30 nanometers; the electron injection layer is for...

Embodiment 3

[0082] After the glass substrate is cleaned and dried, an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode are sequentially formed on the glass substrate by vacuum evaporation, and an anode, a hole transport layer, a light-emitting layer, an electron injection layer and a cathode The organic light-emitting unit stacked on the glass substrate is sequentially stacked, and the organic light-emitting unit is arranged in the middle of the glass substrate and covers part of the surface of the glass substrate; wherein, the anode is formed of indium tin oxide, and the thickness of the anode is 100 nanometers; the hole The transport layer is formed of N,N'-diphenyl-N,N'-di(1-naphthyl)-1,1'-biphenyl-4,4'-diamine, and the thickness of the hole transport layer is 50 nanometer; the light-emitting layer is formed by (8-hydroxyquinoline)-aluminum, and the thickness of the light-emitting layer is 30 nanometers; the electron injection layer is for...

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Abstract

The invention relates to an organic electroluminescent device. The organic electroluminescent device comprises a substrate, an organic luminescence unit, a packaging cover plate, and a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring which are arranged on the substrate. The packaging cover plate and the substrate are arranged at an interval, the organic luminescence unit is arranged on the substrate and is disposed between the substrate and the packaging cover, and the first sealing ring sleeves the organic luminescence unit; the second sealing ring sleeves the first sealing ring; the third sealing ring sleeves the second sealing ring; the fourth sealing ring sleeves the third sealing ring; the respective two opposite side surfaces of first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are respectively fixedly connected with the substrate and the packaging cover plate; and the first sealing ring is composed of a first light-cured adhesive and a first water absorbing agent, the second sealing ring is composed of a second light-cured adhesive, the third sealing ring is composed of a third light-cured adhesive and a second water absorbing agent, and the fourth sealing ring is composed of a fourth light-cured adhesive. The service life of the device is quite long.

Description

technical field [0001] The invention relates to the technical field of electroluminescence, in particular to an organic electroluminescence device. Background technique [0002] With the development trend of green energy, mobile communication and information display, the current organic electroluminescent (OLED) display lighting technology is developing more and more rapidly, with the expansion of application fields. [0003] Stable light emission is the first choice for OLED light-emitting devices to be solved for commercial application. Since most of the organic substances in the OLED light-emitting layer are very sensitive to water and oxygen molecules in the atmosphere, it is easy to hydrolyze or oxidize the compounds in the organic layer, thereby degrading the organic molecules and losing their corresponding functions in the OLED, resulting in OLED devices invalidated. Therefore, it is necessary to ensure the hermeticity inside the OLED device through encapsulation, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/54
CPCH10K50/846H10K50/8426H10K2102/00H10K50/844
Inventor 周明杰冯小明钟铁涛王平
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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