Flexible display panel and preparation method thereof

A flexible display and flexible substrate technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of difficult to guarantee the shear force of the film layer, large difference in bending ability, and increased maximum strain, etc., to achieve Improve bendability and service life, avoid film layer separation, and increase adhesion
CN109411525BActive Publication Date: 2020-07-31GUANGZHOU GOVISIONOX TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU GOVISIONOX TECH CO LTD
Publication Date
2020-07-31

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Abstract

The present invention provides a flexible display panel and a preparation method thereof, wherein the flexible display panel includes a flexible substrate, a light-emitting device layer disposed on the flexible substrate, a touch layer located on the upper side of the light-emitting device layer, and a touch layer located on the flexible substrate. A polarizing layer on the touch layer, the touch layer and the polarizing layer have a side close to each other and a side away from each other, and the sides of the touch layer and / or the polarizing layer facing away from each other are attached An additional layer is provided, the Poisson's ratio of the additional layer is negative. The polarizing layer and / or the touch layer of the flexible display panel of the present invention are attached with an additional layer with a negative Poisson’s ratio on the side away from each other, thereby changing the stress distribution between the film layers, so that the polarizing layer and the touch layer The increased adhesion prevents the separation of film layers and improves the bendability and service life of the flexible display panel.
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Description

technical field

[0001] The invention relates to the technical field of display panel manufacturing, in particular to a flexible display panel and a preparation method thereof. Background technique

[0002] Organic electroluminescent (OLED) devices have the characteristics of low power consumption, light weight, high brightness, wide field of view and fast response. In addition, one of the most attractive features of OLED devices is the ability to realize flexible display functions, making them widely used in portable Electronic equipment, wearable electronic equipment, vehicle electronic equipment and many other fields.

[0003] Flexible OLED devices generally use a flexible polymer substrate as a carrier, and are composed of a transparent anode, a metal cathode, and more than two organic light-emitting layers sandwiched between them. The organic light-emitting layer generally includes a hole injection layer, a hole transport layer, a light-emitting layer, an electron trans...

Claims

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