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Bearing film and manufacturing method thereof, display module and display device

A manufacturing method and display module technology, which are applied in the direction of identification devices, instruments, etc., can solve problems such as bad cracks, reduce stress, reduce the risk of bad cracks, and improve 3D bonding yield.

Pending Publication Date: 2021-07-09
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor cracking during the 3D lamination process of the flexible display panel and the cover plate, the embodiment of the present invention provides a carrier film and its manufacturing method, a display module, and a display device

Method used

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  • Bearing film and manufacturing method thereof, display module and display device
  • Bearing film and manufacturing method thereof, display module and display device
  • Bearing film and manufacturing method thereof, display module and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0044] This embodiment provides a carrier film for bonding a flexible display panel to a cover plate. The structure of the carrier film is as follows: Figure 3(a) to Figure 3(d) As shown, the carrier film includes a first region 101, a second region 102 with grooves and a third region 103; the second region 102 is located between the first region 101 and the third region 103; the first region 101, the second region 103 The third area 103 is used for direct lamination with the flexible display panel, and the second area 102 is used for lamination with the bending area of ​​the flexible display panel by the depth of the groove provided.

[0045] The carrier film in this embodiment is a special design of the carrier film structure. By digging the carrier film at the position corresponding to the bending area of ​​the flexible display panel, the carrier film is directly attached to the flexible display panel only in the non-bending area. The display panel is attached to the flexi...

Embodiment 2

[0048] This embodiment provides a method for making a carrier film, which can be used to make the carrier film in Embodiment 1. The layer structure of the carrier film is as follows: Figure 5 As shown, the production method includes:

[0049] Step S1 , providing a carrier film substrate 11 .

[0050] In practical application, in the step S1 of making the carrier film, the carrier film base material 11 , the viscous reducing adhesive 12 and the release film 13 are provided as raw materials for future use. In some embodiments, the carrier film substrate 11 is preferably a PET substrate or a PU substrate; the adhesive 12 is a UV adhesive, such as an acrylic adhesive added with a UV initiator; the release film 13 is a PET release film. Type film or PU release film.

[0051] Step S2 , coating the adhesive 12 on the carrier film substrate 11 and drying it.

[0052] In one implementation, the step S2 coating the adhesive on the carrier film substrate includes: discontinuously coati...

Embodiment 3

[0063] This embodiment provides a display module, including:

[0064] cover;

[0065] For the flexible display panel, use the carrier film of Embodiment 1 or the carrier film obtained by the method of Embodiment 2 to bond to the cover plate.

[0066] In practical applications, the above-mentioned cover plate is a glass cover plate (Cover Glass, CG for short), and the flexible display panel can be a flexible display panel whose bending angle in the bending area is greater than 90°, especially if the bending angle in the bending area is not For flexible display panels less than 160°, for example, flexible display panels with larger bending angles of 160° and 180°, by applying the above-mentioned carrier film to flexible display panels with bending angles greater than 90° in the bending area, Can effectively reduce Crack bad.

[0067] Figure 6 It shows a schematic diagram of laminating the carrier film and the flexible display panel provided by the embodiment of the present i...

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Abstract

The embodiment of the invention provides a bearing film and a manufacturing method thereof, a display module and a display device. The bearing film is used for attaching a flexible display panel to a cover plate, and the bearing film comprises a first area, a second area provided with a groove and a third area; the second region is located between the first area and the third area; the first area and the third area are used for being attached to the flexible display panel, and the second area is used for being attached to the bending area of the flexible display panel at the interval of the depth of a groove formed in the bending area. The bearing film provided by the embodiment is attached to the flexible display panel, so that the bearing film is directly attached to the flexible display panel in the non-bending area and is attached to the flexible display panel at a certain distance in the bending area, the stress borne by the flexible display panel in the bending area can be reduced, the risk of poor Crack is reduced, and the 3D laminating yield is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a carrying film and a manufacturing method thereof, a display module, and a display device. Background technique [0002] Such as Figure 1(a) to Figure 1(c) As shown, in the process of 3D laminating the flexible display panel (Panel) and the cover plate using the carrier film of the existing structure, due to the large shear force in the bending area, cracking defects are prone to occur, and the resulting Crack Most of the defects are poor penetration cracks. [0003] Therefore, there is an urgent need in the art to solve the problem of poor cracking during the 3D lamination process of the flexible display panel and the cover plate. Contents of the invention [0004] In order to solve the problem of poor cracking during the 3D lamination process of the flexible display panel and the cover plate, embodiments of the present invention provide a carrier film and a manufacturing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30
CPCG09F9/301
Inventor 范旭邓佳颜麟欢曾利高涌效朱曦李晨汤强
Owner BOE TECH GRP CO LTD
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