Adhesive film and preparation method thereof and flexible display module

A flexible display and module technology, used in adhesives, film/sheet adhesives, instruments, etc., can solve the difficulty of relative displacement between the film and the film, the adhesion of optical adhesives is small, and it is concentrated at the interface. The deformation also mainly occurs in the interface and other problems

Active Publication Date: 2017-09-29
BOE TECH GRP CO LTD
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  • Abstract
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Problems solved by technology

[0003] However, since the adjacent film layers are bonded by optical glue, and the flexible display module is in the process of bending, a certain relative displacement (strain) will occur between the film layers; in this case Under the circumstances, if the elastic modulus of the optical adhesive is too large, it is difficult for the relative displacement between the film layers to occur, and the stress required under the same bending strain is relatively large, that is, the overall bending of the flexible display module requires The force is too strong to be suitable for the flexible product structure and mechanical mechanism de...

Method used

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  • Adhesive film and preparation method thereof and flexible display module
  • Adhesive film and preparation method thereof and flexible display module
  • Adhesive film and preparation method thereof and flexible display module

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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Embodiments of the present invention provide a double-sided adhesive film, such as figure 1 As shown, along the thickness direction O-O' of the double-sided adhesive film 100, the elastic modulus K of the double-sided adhesive film 100 is small in the middle and large on both sides, wherein figure 1 The color depth of the double-sided adhesive film 100 represents the size of the elastic modulus K. Specifically, the darker positions indicate a larger ela...

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Abstract

The embodiment of the invention provides an adhesive film and a preparation method thereof and a flexible display module and relates to the technical field of adhesives. By providing the adhesive film with gradually varied elasticity modulus, when the adhesive film is applied to the flexible display module, the module has enough bending strain under a proper stress. The double-sided adhesive film is distributed in a manner that the elastic modulus of the double-sided adhesive film is small in the middle but great in two sides along the thickness direction of the double-sided adhesive film.

Description

technical field [0001] The invention relates to the field of adhesive technology, in particular to an adhesive film, a preparation method thereof, and a flexible display module. Background technique [0002] Bonding different structural layers through adhesive films has certain applications in various industries. Take Optically Clear Adhesive (OCA) in the field of display technology as an example. Specifically, it is generally required in flexible display modules. Optical glue is used to bond each film layer structure to realize the bonding assembly of the entire display module. [0003] However, since the adjacent film layers are bonded by optical glue, and the flexible display module is in the process of bending, a certain relative displacement (strain) will occur between the film layers; in this case Under the circumstances, if the elastic modulus of the optical adhesive is too large, it is difficult for the relative displacement between the film layers to occur, and the...

Claims

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Application Information

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IPC IPC(8): C09J7/00G09F9/30
CPCC09J7/00G09F9/301
Inventor 刘陆
Owner BOE TECH GRP CO LTD
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