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Electroluminescence device and its manufacturing method, display panel and display device

A technology of electroluminescent devices and electroluminescent layers, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of high difficulty in making display panels, and achieve the effect of low manufacturing difficulty and easy formation

Active Publication Date: 2020-11-27
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application provides an electroluminescence device and its preparation method, a display panel and a display device, which can solve the problem that the production of the display panel in the related art is relatively difficult, and the technical solution is as follows:

Method used

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  • Electroluminescence device and its manufacturing method, display panel and display device
  • Electroluminescence device and its manufacturing method, display panel and display device
  • Electroluminescence device and its manufacturing method, display panel and display device

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] The display panel is widely used. The display panel usually includes a base substrate and a plurality of pixels arranged on the base substrate, and each pixel includes an electroluminescent device for emitting light. The electroluminescent device usually consists of multiple film layers superimposed. When the solution process method is used to prepare the target film layer among the multiple film layers, and when the target film lay...

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Abstract

The invention provides an electroluminescence device, a preparation method thereof, a display panel and a display device, and belongs to the field of display technology. The electroluminescence device comprises: a hole injection layer, the hole transport layer, the electron transport layer and an electron injection layer; a hole injection layer, the hole transport layer, the electron transport layer and an electron injection layer At least one film layer in the layers is a target film layer, and the target film layer includes: a small molecule layer and a macromolecule layer superimposed. The invention solves the problem of high difficulty in manufacturing the display panel. The invention is used for preparing electroluminescent devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electroluminescence device and a preparation method thereof, a display panel and a display device. Background technique [0002] With the development of science and technology, display panels are widely used in people's production and life due to their better display effects. [0003] A display panel usually includes a base substrate and a plurality of pixels arranged on the base substrate, and each pixel includes an electroluminescent device for emitting light. The electroluminescent device is usually formed by stacking multiple film layers, and usually adopts The plurality of film layers are prepared by a solution process method. [0004] When the solution process method is used to prepare the target film layer among the multiple film layers, and when the target film layer includes macromolecules, the viscosity of the solution used to prepare the target film layer will inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/56H01L27/32
CPCH10K50/156H10K50/166H10K50/17H10K50/171H10K71/441H10K50/11H10K50/15H10K50/16H10K2101/40H10K2101/30
Inventor 侯文军
Owner BOE TECH GRP CO LTD
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