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Red and green phosphorescent OLED device and manufacturing method thereof

A technology of red and green phosphorescence and a manufacturing method, which is applied in the manufacture of semiconductor/solid-state devices, electric solid-state devices, semiconductor devices, etc., can solve problems such as quenching of light-emitting excitons, achieve high luminous efficiency and brightness, improve lifespan, and improve lifespan. Effect

Active Publication Date: 2013-07-31
陕西诺菲尔光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tandem OLED driving voltage will increase exponentially with the number of series components; for the P-I-N type, the problem is that the light-emitting excitons are easily absorbed by the electrical dopants of the P-type or N-type doped layer (such as Li + 、Cs + , F 4 -TCNQ) Quenched by

Method used

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  • Red and green phosphorescent OLED device and manufacturing method thereof
  • Red and green phosphorescent OLED device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Device A:

[0034] ITO / MoO 3 (40nm) / NPB (40nm) / TCTA (10nm) / CBP:2%R-4b (2.5nm) / CBP:14%GIr1 (25nm) / CBP:2%R-4b (2.5nm) / BCP (10nm ) / Alq 3 (40nm) / LiF (1nm) / Al (100nm)

Embodiment 2

[0036] Device B:

[0037] ITO / MoO 3 (40nm) / NPB (40nm) / TCTA (10nm) / CBP:14%GIr1 (25nm) / CBP:2%R-4b (5nm) / BCP (10nm) / Alq 3 (40nm) / LiF (1nm) / Al (100nm)

Embodiment 3

[0039] Device C:

[0040] ITO / MoO 3 (40nm) / NPB (40nm) / TCTA (10nm) / CBP:2%R-4b (5nm) / CBP:14%GIr1 (25nm) / BCP (10nm) / Alq 3 (40nm) / LiF (1nm) / Al (100nm)

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Abstract

The invention provides a red and green phosphorescent OLED (organic light emitting diode) device and a manufacturing method thereof. The red and green phosphorescent OLED device comprises a glass substrate, and an ITO (indium tin oxide) anode, a hole injection layer, a hole transport layer, an electronic barrier layer, a luminous layer, a hole barrier layer, an electronic transport layer, an electronic injection layer and an aluminum cathode which are arranged on the glass substrate sequentially, wherein a wire is led out of each of the ITO anode and the aluminum cathode, and connected with an external direct-current power supply. According to the red and green phosphorescent OLED device and the manufacturing method, excitons and carriers are adjusted to be in different areas of the luminous layer, so that the luminous efficiency and the luminance of the device are improved, and the service life of the device is prolonged indirectly.

Description

technical field [0001] The invention relates to the technical field of OLED manufacturing, in particular to a red-green phosphorescent OLED device and a manufacturing method thereof. Background technique [0002] OLED (Organic Light-emitting Diodes) has attracted the attention of more and more manufacturers and scientific research teams due to its advantages such as high light efficiency, wide viewing angle, self-illumination and flexible substrate design, as well as its potential application value in lighting and display. Now it has been applied to industrialized OLED products, mainly small OLED devices, such as MP3, mobile phone panels, car displays, household appliances and so on. Due to the practical value of OLEDs, various scientific research teams have conducted in-depth research on OLEDs to further improve their light efficiency and lifespan. For white lighting OLEDs, the main purpose is to improve their CRI and light efficiency. The usual improvement methods are to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/54H01L51/56
Inventor 张方辉张微黄晋张思璐李怀坤程君
Owner 陕西诺菲尔光电科技有限公司
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