CN219266931U

CN219266931U - Flexible touch display screen

Info

Publication number: CN219266931U
Application number: CN202320558301.0U
Authority: CN
Inventors: 邹建华; 黄世盛; 洪锡秋; 邱泽银; 张涛涛
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-06-27
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a flexible touch display screen, comprising: the protective layer, the hard coating, the polyester film layer, the first bonding layer, the polyimide film layer, the flexible circuit board, the second bonding layer, the flexible display screen, the third bonding layer and the super elastomer layer are sequentially arranged from top to bottom; and a touch sensing functional layer is arranged on one side surface of the polyimide film layer, facing the flexible display screen, and the flexible circuit board is connected with the touch sensing functional layer. According to the flexible touch display screen, the flexible and bendable properties of the polyester film layer, the polyimide film layer, the flexible circuit board, the flexible display screen and the super-elastomer layer are utilized, so that the bending and curling performances of the touch display screen are realized, the stretching and recovering performances of the flexible touch display screen are further improved through the super-elastomer layer, and defects such as crease marks are avoided; by the protective layer, damage to the flexible touch display screen can be reduced or a user can be protected.

Description

Flexible touch display screen

Technical Field

The utility model relates to the technical field of touch display screens, in particular to a flexible touch display screen.

Background

Along with the development of technology, a folding display screen and a curved display screen which are richer in high-end technology sense start to be produced, the folding display screen and the curved display screen can be collectively called as a flexible display screen, along with the development of a flexible touch screen also driven by the application of the flexible display screen, the touch screen is a device capable of receiving input signals such as a contact, namely, the touch screen can be touched by hands or other sensing tools, so that the touch effect is achieved. The combination of the flexible touch screen and the flexible display screen forms the flexible touch display screen.

However, the existing flexible touch display screen has poor stretching recovery performance, for example, most of film touch screens of the touch screen in the flexible touch display screen have low stretching recovery performance, so that the performance requirement of the curled touch screen is difficult to meet, particularly, if the stretching recovery performance is low, crease is easy to appear in a folding area, and further, the quality of products and the experience of consumers are reduced.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a flexible touch display screen with good stretching recovery performance.

The aim of the utility model is realized by the following technical scheme:

a flexible touch display screen, comprising: the flexible display screen comprises a protective layer, a hard coating, a polyester film layer, a first bonding layer, a polyimide film layer, a flexible circuit board, a second bonding layer, a flexible display screen, a third bonding layer and a super-elastomer layer, wherein the protective layer, the hard coating, the polyester film layer, the first bonding layer, the polyimide film layer, the flexible circuit board, the second bonding layer, the flexible display screen, the third bonding layer and the super-elastomer layer are respectively arranged from top to bottom in sequence; and a touch sensing function layer is arranged on one side surface of the polyimide film layer facing the flexible display screen, and the flexible circuit board is connected with the touch sensing function layer.

In one embodiment, the protective layer includes an anti-glare coating and an anti-scratch coating, the anti-glare coating is disposed on a side of the hard coating away from the mylar layer, and the anti-scratch coating is disposed on a side of the anti-glare coating away from the mylar layer.

In one embodiment, a black ink frame is arranged on one side of the polyester film layer facing the polyimide film layer.

In one embodiment, the first adhesive layer is a colorless transparent OCA optical clear adhesive.

In one embodiment, the protective layer is an antibacterial anti-glare coating, and the antibacterial anti-glare coating is disposed on a side of the hard coating away from the mylar layer.

In one embodiment, a black ink frame is arranged on one side of the polyimide film layer facing the polyester film layer.

In one embodiment, the first adhesive layer is a semi-transparent black OCA optical cement.

In one embodiment, the touch sensing functional layer is any one of a metal grid touch sensing functional layer or a nano silver touch sensing functional layer.

In one embodiment, the second adhesive layer is a colorless transparent OCA optical clear adhesive.

In one embodiment, the super elastomer layer is any one of a polyurethane-based super elastomer or a rubber-based super elastomer.

Compared with the prior art, the utility model has at least the following advantages:

1. according to the flexible touch display screen, the flexible and bendable properties of the polyester film layer, the polyimide film layer, the flexible circuit board, the flexible display screen and the super-elastomer layer are utilized, so that the bending and curling performances of the touch display screen are realized, the stretching and recovering performances of the flexible touch display screen are further improved through the super-elastomer layer, and defects such as crease marks are avoided;

2. the flexible touch display screen is provided with the protective layer, so that damage to the flexible touch display screen can be reduced, or a user can be protected, for example, eyes of the user are protected through anti-glare coating, the problem that the eyes of the user are suddenly subjected to strong light irradiation to cause glare is avoided, and meanwhile, the scratch on the outer surface of the touch display screen is reduced through scratch-proof coating.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described.

FIG. 1 is a schematic diagram of a flexible touch display screen according to an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a flexible touch display screen according to another embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1 and 2, a flexible touch display screen 10 includes: the protective layer 100, the hard coat layer 210, the polyester film layer 200, the first adhesive layer 300, the polyimide film layer 400, the flexible circuit board 500, the second adhesive layer 600, the flexible display screen 700, the third adhesive layer 800 and the super elastomer layer 900 are respectively arranged in sequence from top to bottom, and the protective layer 100, the hard coat layer 210, the polyester film layer 200, the first adhesive layer 300, the film layer 400, the flexible circuit board 500, the second adhesive layer 600, the flexible display screen 700, the third adhesive layer 800 and the super elastomer layer 900 are respectively arranged in sequence from top to bottom; and a touch sensing function layer 410 is disposed on a side of the polyimide film layer 400 facing the flexible display screen 500, and the flexible circuit board 700 is connected with the touch sensing function layer 410.

It should be noted that, the polyester film layer 200, the polyimide film layer 400, the flexible circuit board 500, the flexible display screen 700 and the super elastomer layer 900 are all flexible and bendable materials, so that the bendable and curling performance of the flexible touch display screen 10 can be achieved, wherein in the embodiment, the super elastomer layer 900 is any one of polyurethane super elastomer or rubber super elastomer, and the super elastomer material has super tensile recovery performance, so that the curling performance requirement of the flexible touch display screen can be met compared with the conventional single film touch screen structure, for example, when the flexible touch display screen is applied to a folding screen, the defects of folds and the like of the flexible touch display screen after frequent folding can be reduced; further, the hard coating 210 is disposed on the upper surface of the mylar layer 200, that is, the upper surface of the mylar layer 200 is subjected to hardening (hard coating) treatment, so as to improve the mechanical properties of the mylar layer 200, that is, the upper surface of the mylar layer 200 meets certain scratch-resistant and hardness requirements; further, in the present embodiment, the flexible display screen 500 may employ a self-luminous AMOLED flexible display screen; further, the outermost layer of the flexible touch display screen facing the user is the protective layer 100, and the damage to the flexible touch display screen can be reduced and the user can be protected through the protective layer 100. Further, the polyimide film layer 400 is provided with a touch sensing function layer 410 on a side surface facing the flexible display screen 500, a metal pin is arranged at a binding position of the touch sensing function layer 410, and the flexible circuit board 500 is bound and conducted with the metal pin at the binding position, so that a touch sensing function is realized, and further, the touch sensing function layer 410 is any one of a metal grid touch sensing function layer or a nano silver touch sensing function layer, and the metal grid and the nano silver have soft and bendable properties, namely when the flexible touch display screen is bent or curled, the problem of breakage can be reduced, so that the production quality is improved.

Referring to fig. 1, in an embodiment, the protection layer 100 includes an anti-dazzle coating 110 and an anti-scratch coating 120, the anti-dazzle coating 110 is disposed on a side of the hard coating 210 away from the mylar layer 200, and the anti-scratch coating 110 is disposed on a side of the anti-dazzle coating 110 away from the mylar layer 200.

It should be noted that, for example, the anti-glare coating 110 may generally form a rough surface on the surface layer of the flexible touch display screen 10 by using a colloidal solution such as silica through a coating process, so as to prevent the glare problem caused by the sudden exposure of eyes of a user to strong light; the scratch-proof coating 120 is formed by coating a layer of diamond-like carbon on the surface layer, and the scratch-proof capability of the flexible touch display screen 10 is further improved through the high hardness of the diamond-like carbon, so that the service life of the flexible touch display screen can be further prolonged.

Further, a black ink frame 220 is provided on a side of the mylar layer 200 facing the polyimide film layer 400. The black ink frame can play a role in shading and decorating.

Further, the first adhesive layer 300 is a colorless transparent OCA (Optically Clear Adhesive) optical adhesive, and the OCA optical adhesive is a special optical adhesive, and correspondingly, in this embodiment, the second adhesive layer 600 and the third adhesive layer 800 are colorless transparent OCA optical adhesives, and the OCA optical adhesives have good adhesion capability and high light transmittance, so that the display effect of the flexible touch display screen can be ensured.

Referring to fig. 2, in another embodiment, the protective layer 100 is an anti-bacterial anti-dazzle coating 130, and the anti-bacterial anti-dazzle coating 130 is disposed on a side of the hard coating 210 away from the mylar layer 200.

The antibacterial antiglare film 130 includes an antiglare agent and an antibacterial agent, for example, an agent containing silica and an antibacterial agent containing silver ions. The antiglare effect is achieved by the antiglare agent, and bacteria adhering to the surface of the flexible touch panel 10 can be reduced by the antibacterial agent.

Further, a black ink frame 220 is provided on a side of the polyimide film layer 400 facing the mylar layer 200.

It should be noted that, the black ink frame 220 plays a role in shading and decorating, and further, the first adhesive layer 300 is semi-transparent black OCA optical adhesive, so that an integral black effect of the flexible touch display screen can be further improved, that is, the flexible touch display screen can show a full screen black effect in a screen-off state, thereby improving high-end technological sense of products. In this embodiment, the second adhesive layer 600 is a colorless transparent OCA optical adhesive, and the third adhesive layer 800 is also a colorless transparent OCA optical adhesive, which is a special optical adhesive, has good adhesion capability, has high light transmittance, and can ensure the display effect of the flexible touch display screen.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A flexible touch display screen, comprising:

the flexible display screen comprises a protective layer, a hard coating, a polyester film layer, a first bonding layer, a polyimide film layer, a flexible circuit board, a second bonding layer, a flexible display screen, a third bonding layer and a super-elastomer layer, wherein the protective layer, the hard coating, the polyester film layer, the first bonding layer, the polyimide film layer, the flexible circuit board, the second bonding layer, the flexible display screen, the third bonding layer and the super-elastomer layer are respectively arranged from top to bottom in sequence; and a touch sensing function layer is arranged on one side surface of the polyimide film layer facing the flexible display screen, and the flexible circuit board is connected with the touch sensing function layer.

2. The flexible touch display screen of claim 1, wherein the protective layer comprises an anti-glare coating and an anti-scratch coating, the anti-glare coating being disposed on a side of the hard coating away from the mylar layer, the anti-scratch coating being disposed on a side of the anti-glare coating away from the mylar layer.

3. The flexible touch display screen of claim 2, wherein a black ink border is provided on a side of the mylar layer facing the polyimide film layer.

4. A flexible touch display according to claim 3, wherein the first adhesive layer is a colorless transparent OCA optical adhesive.

5. The flexible touch display screen of claim 1, wherein the protective layer is an antimicrobial antiglare coating disposed on a side of the hard coating remote from the mylar layer.

6. The flexible touch display screen of claim 5, wherein a black ink border is provided on a side of the polyimide film layer facing the mylar layer.

7. The flexible touch display of claim 6, wherein the first adhesive layer is a semi-opaque OCA optical adhesive.

8. The flexible touch display of any of claims 1-7, wherein the touch sensing functional layer is any one of a metal mesh touch sensing functional layer or a nano-silver touch sensing functional layer.

9. The flexible touch display of any of claims 1-7, wherein the second adhesive layer is a colorless transparent OCA optical adhesive.

10. The flexible touch display of any of claims 1-7, wherein the super-elastomer layer is any of a polyurethane-based super-elastomer or a rubber-based super-elastomer.