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Display device

A technology for display devices and encapsulation cover plates, which is applied in the manufacture of electrical components, electric solid-state devices, semiconductor/solid-state devices, etc., can solve the problems of affecting the service life of OLED devices, cannot be completely prevented, and water vapor cannot be eliminated.

Pending Publication Date: 2021-05-18
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many research results show that the existence of water vapor inside the OLED device is the main factor affecting the life of the OLED.
[0004] Although the current OLED packaging technology can play a role in blocking external water vapor, it cannot completely prevent external water vapor from penetrating into the device during use, and the water vapor inside the device itself or the water vapor generated by the packaging process during the packaging process Still cannot be eliminated, affecting the service life of OLED devices, so that the life of OLED devices is still lower than that of traditional liquid crystal panels

Method used

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Embodiment Construction

[0037] In order to make the purpose, technical solutions 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 of the embodiments of the present invention, rather than all of them. 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.

[0038] An embodiment of the present invention provides a display device, which may be a display device such as an OLED display, an OLED panel, or an OLED TV, or may be a mobile terminal such as a mobile phone, a tablet computer, or a smart photo album. figure 1 One of the cross-sectional schematic diagrams of the display device provided by the embodiment of the present invention, such as figure 1 As shown, the display device provided by...

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Abstract

The invention discloses a display device which comprises a substrate, an organic light-emitting diode device located on the substrate, a packaging cover plate located on the side, away from the substrate, of the organic light-emitting diode device, and a first sealing layer located in an edge area between the substrate and the packaging cover plate. The blocking layer is positioned on one side, facing the organic light-emitting diode device, of the first sealing layer. According to the display device, the first sealing layer is adopted as the box dam glue and used for blocking permeation of water vapor, and the blocking layer is additionally arranged in the first sealing layer on the basis and used for absorbing the water vapor permeating into the closed cavity, so that the water vapor blocking effect of the packaging technology is greatly improved, and the service life of an OLED device is prolonged.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device. Background technique [0002] Organic Light Emitting Diode (OLED for short) display panels have the characteristics of fast response and thinness, and have been applied to fields such as mobile display devices and television devices. [0003] The service life of OLED devices is an important factor restricting the development of OLED industry. There are many factors that affect the service life of OLED devices, including physical factors, such as device structure, circuit driving mode, etc.; there are also chemical factors, such as oxidation of metal cathodes, crystallization and aging of organic materials, etc. However, many research results show that the existence of water vapor inside the OLED device is the main factor affecting the life of the OLED. [0004] Although the current OLED packaging technology can play a role in blocking external water v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52
CPCH10K50/84
Inventor 孙明晓金南德
Owner HISENSE VISUAL TECH CO LTD