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OLED light-emitting device and preparation method thereof

A technology for light-emitting devices and light-emitting layers, which is applied in the manufacturing of semiconductor/solid-state devices, semiconductor devices, and electric solid-state devices, etc., can solve the problems affecting the lifespan and quenching of OLED light-emitting devices, and achieve the effect of improving light-emitting performance and lifespan.

Pending Publication Date: 2020-04-17
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the metal ions formed in the anode and cathode may migrate to the luminescent layer, resulting in luminescence quenching, which affects the lifetime of OLED light-emitting devices.

Method used

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  • OLED light-emitting device and preparation method thereof
  • OLED light-emitting device and preparation method thereof
  • OLED light-emitting device and preparation method thereof

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Embodiment Construction

[0045] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these feature...

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Abstract

The invention provides an OLED light-emitting device and a preparation method thereof, and belongs to the technical field of display. The OLED light-emitting device comprises a substrate, and an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer and a cathode which are stacked on the substrate; a first ion adsorbent is doped between the anode and the light-emitting layer and is used for adsorbing metal ions dissociating between the anode and the light-emitting layer; a second ion adsorbent is doped between thecathode and the light-emitting layer and is used for adsorbing metal ions dissociating between the cathode and the light-emitting layer. According to the OLED light-emitting device and the preparation method thereof, the metal ions can be prevented from entering the light-emitting layer, and the light-emitting quenching phenomenon can be avoided so that the service life of the OLED light-emittingdevice is prolonged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED light-emitting device and a preparation method. Background technique [0002] Organic Light-Emitting Diode (OLED) has become a popular flat-panel display technology due to its advantages such as self-illumination, high contrast, wide viewing angle, fast response speed, and flexible panels such as bending. [0003] In the existing organic light emitting diode, it comprises anode and cathode, and the hole injection layer, hole transport layer, light-emitting layer, electron transport layer, electron injection layer that are arranged between anode and cathode successively; The injection efficiency of holes is usually doped with active metal materials at the anode and cathode. [0004] However, the metal ions formed in the anode and cathode may migrate to the luminescent layer, resulting in luminescence quenching, thereby affecting the lifetime of OLED light-emitting device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/56
CPCH10K50/155H10K50/165H10K50/17H10K50/171H10K71/00
Inventor 曹方义朱修剑
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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