Display device

A technology for display devices and substrates, which is applied in the manufacture of electrical components, electrical solid-state devices, semiconductor/solid-state devices, etc. The effect of ensuring the ejection efficiency and prolonging the service life

Pending Publication Date: 2021-06-25
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
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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, the water absorption capacity is still limited, and the poor flexibility of the OLED device leads to edge peeling, resulting in accelerated penetration of water vapor, and internal water vapor affects the service life of the device, thus improving OLED. Water absorption performance is the top priority for improving OLED devices

Method used

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all described by taking the accompanying drawings as an example, but changes can also be made according to needs, and all changes are included in the protection scope of the present invention. The drawings of the present inv...

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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 first barrier layer covering the organic light-emitting diode device, a water absorption layer located on the periphery of the first barrier layer, a flat layer covering the first barrier layer and the water absorption layer, and a second barrier layer covering the surface and the periphery of the flat layer. According to the invention, the water and oxygen blocking performance of the display device can be improved in the mode that the blocking layers and the flat layers are alternately arranged while the device can be flattened, so that internal stress generated when the display device is bent and curled is relieved, and the display device is protected against damage; the water absorption layer is arranged around the first barrier layer, so that the water absorption performance of the device can be enhanced, water in the device is absorbed, and the service life of the display device is prolonged; and the water absorption layer is only arranged on the periphery of the OLED device and avoids the top of the OLED device, so that the water absorption layer can be prevented from shielding light emission of the OLED device, and the emission efficiency of the OLED device is ensured.

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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IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/00H10K50/846H10K50/844H10K50/84
Inventor 孙明晓金南德乔明胜
Owner HISENSE VISUAL TECH CO LTD
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