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A kind of flexible display device and preparation method thereof

A flexible display device and display film technology, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as cracks at the edge film interface, reduce package accessibility, and water and oxygen intrusion, etc. Improve water and oxygen barrier ability, improve edge reliability, and ensure the effect of display effect

Active Publication Date: 2017-07-04
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of flexible substrates, which can be bent, cracks or other defects are most likely to appear at the interface of the edge film layer, resulting in the intrusion of water and oxygen, which reduces the accessibility of the package, resulting in the deterioration of the display effect.

Method used

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  • A kind of flexible display device and preparation method thereof
  • A kind of flexible display device and preparation method thereof
  • A kind of flexible display device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Please refer to figure 1 with figure 2 , figure 1 It is a schematic top view structure diagram of a flexible display device provided in Embodiment 1 of the present invention, figure 2 yes figure 1 Schematic diagram of the cross-sectional structure along the AA' section in the middle. A flexible display device provided in this embodiment includes: a flexible substrate 100 including a display area PA and a packaging area PB; a packaging substrate 110 located in the packaging area PB of the flexible substrate 100; a display film layer comprising at least one The first display film layer 102 on the packaging substrate 110, the first display film layer 102 has a first via hole 1021 on the packaging substrate 110 to expose at least part of the packaging substrate 110; the thin film packaging layer 108 covers the display The film layer extends from the display area PA to the packaging area PB, and the edge of the thin film packaging layer 108 is closer to the display are...

Embodiment 2

[0041] Please refer to image 3 with Figure 4 , image 3 It is a schematic top view structure diagram of a flexible display device provided in Embodiment 2 of the present invention, Figure 4 yes image 3 Schematic diagram of the cross-sectional structure along the BB' section in the middle. A flexible display device provided in this embodiment includes: a flexible substrate 100 including a display area PA and a packaging area PB; a packaging substrate 110 located in the packaging area PB of the flexible substrate 100; a display film layer comprising at least one The first display film layer 102 on the packaging substrate 110, the first display film layer 102 has a first via hole 1021 on the packaging substrate 110 to expose at least part of the packaging substrate 110; the thin film packaging layer 108 covers the display The film layer extends from the display area PA to the packaging area PB, and the edge of the thin film packaging layer 108 is closer to the display are...

Embodiment 3

[0047] Please refer to Figure 5 as well as Figures 6A-6G , Figure 5 is a schematic flow chart of a method for preparing a flexible display device provided in Embodiment 3 of the present invention, Figures 6A-6G It is a schematic cross-sectional structure diagram of a method for manufacturing a flexible display device provided in Embodiment 3 of the present invention. In this embodiment, with figure 2 The flexible display device shown in is taken as an example to illustrate the preparation method of the flexible display device. A method for manufacturing a flexible display device provided in this embodiment includes: preparing a flexible substrate 100, the flexible substrate 100 including a display area PA and a packaging area PB; forming a packaging substrate 110 in the packaging area PB of the flexible substrate 100; A first display film layer 102 is formed on the package substrate 110, and the first display film layer 102 covers the package substrate 110; a first vi...

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Abstract

The present invention describes a flexible display device and a manufacturing method thereof. The flexible display device comprises: a flexible substrate including a display area and a packaging area; a packaging substrate located in the packaging area of ​​the flexible substrate; at least one layer located on the packaging substrate The first display film layer has a first via hole on the packaging substrate to expose at least part of the packaging substrate; the thin film packaging layer covers the first display film layer and extends from the display area to the packaging area , the edge of the thin film encapsulation layer is closer to the display area than the packaging substrate; the edge encapsulation structure is arranged along the edge of the thin film encapsulation layer, covers the edge area of ​​the thin film encapsulation layer and the first via hole, and communicates with the package through the first via hole substrate contact. The flexible display device provided by the invention improves the edge reliability of the film package, further improves the water and oxygen barrier capability, and ensures the display effect of the display device.

Description

technical field [0001] The invention relates to the display field, in particular to a flexible display device and a preparation method of the flexible display device. Background technique [0002] Compared with many displays, OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) displays have many advantages such as active light emission, high contrast, and no viewing angle limitation, especially flexible OLED displays, which have more obvious advantages. Flexible OLED displays are not only lighter and thinner in size, but also lower in power consumption than the original devices, which helps to improve the battery life of the device. At the same time, based on its bendable and flexible characteristics, its durability is also much higher than that of previous screens. , reduce the probability of accidental equipment damage. Therefore, flexible OLED displays are now widely used in the field of display technology. [0003] The flexible OLED display panel is packa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K71/80H10K77/111H10K50/84H10K50/844H10K71/00
Inventor 翟应腾
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD