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Manufacturing method of flexible display device and flexible display device manufactured by adopting same

A flexible display device, flexible polymer technology, used in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as poor reliability, improve lifespan, reduce costs, and reduce pinholes and grain boundaries. Effect

Inactive Publication Date: 2015-04-29
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, what the present invention intends to solve is the problem of poor reliability of the packaging method in the existing flexible display device manufacturing method, and provides a kind of reliable flexible display device manufacturing method, and the flexible display device prepared by the method

Method used

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  • Manufacturing method of flexible display device and flexible display device manufactured by adopting same
  • Manufacturing method of flexible display device and flexible display device manufactured by adopting same
  • Manufacturing method of flexible display device and flexible display device manufactured by adopting same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a method for preparing a flexible display device and the prepared flexible display device. The method for preparing the flexible display device includes the following steps:

[0040] Step 1: sequentially prepare at least one organic planarization layer and at least one inorganic barrier layer alternately arranged on the first flexible polymer substrate and the second flexible polymer substrate, and at least one layer alternately arranged Layer the organic planarization layer and at least one layer of the inorganic barrier layer to form a first water oxygen barrier layer and a second water oxygen barrier layer on the first flexible polymer substrate and the second flexible polymer substrate respectively. Barrier layer, the film-forming temperature of the inorganic barrier layer is 200-450°C;

[0041] Step 2: preparing an organic light-emitting diode on the side of the first flexible polymer substrate provided with the first water-oxygen barrier lay...

Embodiment 2

[0044] Such as Figures 1a-1d As shown, the present embodiment provides a method for preparing a flexible display device and the prepared flexible display device, and the method for preparing the flexible display device includes the following steps:

[0045] Step 1: Attach the first flexible polymer substrate 21 and the second flexible polymer substrate 22 to the first rigid carrier 11 and the second rigid carrier 12 respectively.

[0046] Step 2: If Figure 1a and Figure 1b As shown, on the first flexible polymer substrate 21 and the second flexible polymer substrate 22, at least one layer of organic planarization layer and at least one layer of inorganic barrier layer are sequentially prepared alternately, and the alternate At least one organic planarization layer and at least one inorganic barrier layer are provided to form a first water-oxygen barrier layer 31 and a second flexible polymer substrate 21 on the first flexible polymer substrate 21 and the second flexible po...

Embodiment 3

[0051] Such as Figure 2a-2d As shown, the present embodiment provides a method for preparing a flexible display device and the prepared flexible display device. The method for preparing the flexible display device specifically includes the following steps:

[0052] Step 1: Coating organic glue or inorganic glue on the first hard carrier 11 and the second hard carrier 12, and attaching the first flexible polymer substrate 21 and the second flexible polymer lining on the glue-coated surface respectively Bottom 22; the colloid is then cured by means of laser, ultraviolet light, etc., so that the first flexible polymer substrate 21 and the second flexible polymer substrate 22 are respectively attached to the first rigid carrier 11 and the second hard carrier 12. In this embodiment, organic glue is preferred, purchased from Nagase Corporation, Japan, model XNR5516Z, and cured by ultraviolet curing.

[0053] The first rigid carrier 11 and the second rigid carrier 12 are independe...

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Abstract

The invention provides a manufacturing method of a flexible display device. In the manufacturing method, a water and oxygen barrier layer is directly arranged on a flexible polymer substrate, and then arranged on an organic light-emitting diode in a bonding manner, so that the film-forming compactness of the inorganic barrier layer can be improved, and accordingly the water vapor and oxygen permeation preventing capability of the water and oxygen barrier layer is improved, degradation and deterioration of various materials in the organic light-emitting diode are prevented and the service life of the flexible display device is prolonged; the manufacturing process of the organic light-emitting diode and the manufacturing process of the water and oxygen barrier layer are not required to be sequentially carried out, the water and oxygen barrier layers on a first flexible polymer substrate and a second flexible polymer substrate can be manufactured synchronously or manufactured on the same flexible polymer substrate, and a cutting process is performed as required, so that a production process can be simplified and purposes of improving the production efficiency and reducing the cost are achieved. The invention further provides the flexible display device manufactured by the manufacturing method. The flexible display device is relatively long in service life.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for preparing a flexible display device and a flexible display device prepared by the method. Background technique [0002] Organic Light-Emitting Diode (English full name Organic Light-Emitting Diode, referred to as OLED) is an active light-emitting device with high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the next-generation mainstream flat-panel display technology. Moreover, the most attractive thing about organic light-emitting diodes is that they can be flexible. Specifically, organic light-emitting diodes are fabricated on flexible polymer substrates, such as polyethylene (PE), polypropylene (PP), polystyrene (PS) , polyavanether (PES), polyethylene terephthalate (PEN), polyimide (PI), etc. These polymer substrates can make organic light-emitting diodes bend and can be rolled into any shape. [0003] Howeve...

Claims

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Application Information

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IPC IPC(8): H01L51/56H01L27/32H01L51/52
Inventor 邓亮邱勇林立黄秀颀
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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