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Display panel and manufacturing method thereof

A display panel and display area technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of poor stability and short service life of the display panel, and achieve the effect of improving stability and service life

Active Publication Date: 2019-12-17
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a display panel and a manufacturing method, which are used to solve the technical problems of poor stability and short service life of existing display panels

Method used

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  • Display panel and manufacturing method thereof
  • Display panel and manufacturing method thereof
  • Display panel and manufacturing method thereof

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Embodiment Construction

[0045] "First" and "second" in the description and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the term "comprise", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

[0046] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or...

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Abstract

The invention discloses a display panel and a manufacturing method thereof. The display panel comprises a substrate and a cover layer opposite to the substrate; and a composite cathode structure whichis arranged between the substrate and the cover layer. The composite cathode structure comprises a cathode layer, a first film layer attached to the side of the cathode layer close to the substrate,and a second film layer attached to the side of the cathode layer away from the substrate, wherein a plurality of columnar structures are arranged between the first film layer and the second film layer, and / or a plurality of groove structures are arranged on the side of the first film layer close to the cathode layer. The invention is used for solving the technical problems of poor stability and short service life of the existing display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel and a manufacturing method. Background technique [0002] At present, OLED (Organic Light-Emitting Diode, organic electro-laser display) generally adopts a microcavity structure to adjust light color and increase luminous efficiency. Among them, the cathode commonly used in the microcavity structure is made of silver metal, magnesium-silver alloy, aluminum-silver alloy, gold metal and other materials to form corresponding thin layers. [0003] However, because of the high surface energy of the cathode thin layer, it is easy to aggregate into clusters (that is, the cluster phenomenon). Among them, ideally, the surface of the cathode thin layer is smooth, flat, and free of holes and protrusions. For the determination of the smoothness and levelness of the surface of the film layer or the phenomenon of clusters, it can be clearly distinguished by observing the sur...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/88H10K59/00H10K50/822H10K50/826
Inventor 许林军牛晶华戴铭志
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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