Electroluminescent device, method of making the same, and display device
A technology for electroluminescent devices and display devices, which is applied in the fields of electro-solid devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve problems such as defects in functional stability such as water and oxygen insulation and heat dissipation, and achieve improved functional stability. performance, improve sealing and specific surface area, and improve product performance
Active Publication Date: 2021-12-24
BOE TECH GRP CO LTD +1
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Problems solved by technology
OLED display devices and QLED display devices generally adopt electroluminescent devices in the form of multilayer planar structures, that is, electrode layers, luminescent material layers and functional layers in electroluminescent devices are stacked layer by layer along the thickness direction of the display device in a corresponding order. , the formed electroluminescent device can have a very small thickness, but there are defects in functional stability such as water and oxygen insulation and heat dissipation
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[0034] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or similar words mean ...
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Abstract
The disclosure provides an electroluminescence device, a manufacturing method thereof, and a display device. The electroluminescent device comprises: a first electrode layer; a conductive column standing on the first electrode layer; a first carrier injection layer surrounding the conductive column with the conductive column as an axis; Surrounding the luminescent material layer outside the first carrier injection layer with the conductive column as the axis; surrounding the second carrier injection layer outside the luminescent material layer with the conductive column as the axis layer, the first carrier injection layer and the second carrier injection layer are respectively one of the electron injection layer and the hole injection layer; and, connected to the first surface of the second carrier injection layer The second electrode layer, the first surface is the surface of the second carrier injection layer away from the conductive pillar. The present disclosure can help improve the functional stability of electroluminescent devices.
Description
technical field [0001] The present disclosure relates to the display field, in particular to an electroluminescence device, a manufacturing method thereof, and a display device. Background technique [0002] An electroluminescent device is a self-luminous semiconductor device that can be used in sub-pixels of a display device to form a self-luminous display. In the related art, electroluminescent devices used for display mainly include organic light emitting diodes (Organic Light Emitting Diode, OLED) and quantum dot light emitting diodes (Quantum Dot Light Emitting Diodes). OLED display devices and QLED display devices generally adopt electroluminescent devices in the form of multilayer planar structures, that is, electrode layers, luminescent material layers and functional layers in electroluminescent devices are stacked layer by layer along the thickness direction of the display device in a corresponding order. , the formed electroluminescent device can have a very small...
Claims
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IPC IPC(8): H01L51/50H01L51/52H01L51/56H01L27/32
CPCH10K59/00H10K50/115H10K50/171H10K50/17H10K50/805H10K71/00
Inventor 张爱迪
Owner BOE TECH GRP CO LTD