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OLED display panel and preparation method thereof

A technology for display panels and display devices, applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as easy damage to the lower film layer, and achieve simple preparation methods, improved interface properties, and high stability Effect

Active Publication Date: 2019-06-14
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an OLED display panel to solve the technical problem that the fabricated lower film layer is easily damaged in the process of making the upper film layer

Method used

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  • OLED display panel and preparation method thereof
  • OLED display panel and preparation method thereof
  • OLED display panel and preparation method thereof

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Embodiment Construction

[0033] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [up], [down], [front], [rear], [left], [right], [inner], [outer], [side], etc., are only for reference Additional schema orientation. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0034] The present invention aims at the existing OLED display panel, in the process of making the upper film layer, it is easy to damage the produced lower film layer. The present invention can solve the above-mentioned problems.

[0035] A kind of OLED display panel, such as figure 1 As shown, it includes a display device panel 10 , a light emitting device layer 20 and an encapsu...

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PUM

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Abstract

The invention provides an OLED display panel. The OLED display panel comprises a display device plate, a luminescent device layer and a packaging layer, wherein the luminescent device layer comprisesa cathode, a luminescent layer, a hole transport layer and an anode; the luminescent device layer furthermore comprises an electron transport layer which is arranged between the cathode and the luminescent layer; and the materials of the electron transport layer comprise a crosslinking compound. The OLED display panel has the beneficial effects that the uniform and stable electron transport layeris prepared by utilizing an in-situ reaction method, so that the interface properties of the luminescent device layer formed by ink-jet printing can be effectively improved and then the performance ofthe OLED display panel is further enhanced; and meanwhile, the preparation method is simple, the process is easy to control and the stability is high.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel and a preparation method thereof. Background technique [0002] Solution process OLED light-emitting devices, especially inkjet printing OLED light-emitting devices, have received more and more attention due to the advantages of low cost, no need for metal masks and high material utilization in the process of large-area panel preparation. . [0003] The OLED device contains a multi-layer structure: light-emitting layer, electron transport layer and hole transport layer, etc. When making different film layers, the adjacent functional layers are prone to mutual dissolution, which leads to the process of making the upper film layer. Destroys the lower film layer that has been made. SUMMARY OF THE INVENTION [0004] The invention provides an OLED display panel to solve the technical problem that the produced lower film layer is easy to be damaged in the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/56
CPCH10K50/16
Inventor 史婷
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD