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Flexible display device and manufacturing method thereof

A flexible display and device technology, used in semiconductor/solid-state device manufacturing, semiconductor devices, electric solid-state devices, etc., can solve the problem of inability to block the side penetration of water vapor

Active Publication Date: 2021-01-26
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, the purpose of the present invention is to provide a flexible display device, which solves the problem that traditional packaging cannot block the side penetration of water vapor

Method used

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  • Flexible display device and manufacturing method thereof
  • Flexible display device and manufacturing method thereof
  • Flexible display device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0058] The above-mentioned preparation method of a flexible display device comprises the following steps:

[0059] A first carrier substrate is provided, a polyimide solution is coated on the surface of the first carrier substrate, and cured to form the flexible film substrate; the surface of the flexible film substrate includes a device area and a first packaging area, and the surface of the first carrier substrate An encapsulation area forms a first annular groove, and the first annular groove is filled with nano glass paste;

[0060] forming an electroluminescent component in the device region;

[0061] A second carrier substrate is provided, a polyimide solution is coated on the surface of the second carrier substrate, and cured to form the flexible packaging substrate; the surface of the flexible packaging substrate is provided with a first groove corresponding to the first annular groove. Two annular grooves, the second annular groove is filled with nano glass paste; pe...

Embodiment

[0069] A flexible display device in this embodiment includes:

[0070] A flexible film substrate (it can be understood that the material is preferably polyimide), the surface of the flexible film substrate includes a device area and a first packaging area, and the first packaging area is provided with a first annular groove;

[0071] A flexible packaging substrate, the surface of the flexible packaging substrate is provided with a second annular groove corresponding to the first annular groove;

[0072] An electroluminescent component (understandably, it may be an OLED), stacked on the device region;

[0073] Both the first annular groove and the second annular groove are filled with nano glass paste, and the nano glass paste in the first annular groove and the second annular groove is melted to form a nano glass paste melting part, The flexible film substrate and the flexible packaging substrate are integrated, and the electroluminescence component is packaged between the fl...

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Abstract

The invention relates to a flexible display device and a preparation method thereof. The flexible display device includes a flexible film substrate, and the surface of the flexible film substrate includes a device area and a first encapsulation area, and the first encapsulation area is provided with a first annular Groove; flexible packaging substrate, the surface of the flexible packaging substrate is provided with a second annular groove corresponding to the first annular groove; electroluminescent components, stacked in the device area; the first annular groove and the second annular groove are filled with nano glass paste, the nano glass paste in the first annular groove and the second annular groove is melted to form a nano glass paste melting part, so that the flexible film substrate and the The flexible packaging substrate is integrally formed, and the electroluminescent component is packaged between the flexible film substrate and the flexible packaging substrate. The above-mentioned flexible display device adopts the above-mentioned encapsulation method, which greatly improves the barrier effect of ordinary film encapsulation on water and oxygen, and can realize the preparation of high-resolution transparent flexible AMOLED displays.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a flexible display device and a preparation method thereof. Background technique [0002] In recent years, the flexible display technology has developed very rapidly. It is a research hotspot in universities and research institutions at home and abroad, and it is also the focus of major manufacturers competing for layout. The continuous progress of various advanced manufacturing processes and technologies has not only increased the screen size of flexible displays, but also continuously improved the display quality. Major manufacturers such as Samsung and LG have launched flexible AMOLED display prototypes. Flexible displays use flexible substrate materials as device-carrying substrates, and require electrode layers, TFT matrices, display devices, and packaging layers to have a certain bending radius to achieve flexibility, including electronic paper, flexible liquid crys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/12H10K50/80H10K71/00
Inventor 高卓
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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