CN217718921U - Display module, display screen and electronic equipment - Google Patents

Abstract

The embodiment of the application provides a display module assembly, display screen and electronic equipment, this display module assembly is applied to flexible display screen, and this display module assembly includes: at least two material layers arranged in a stacked manner; further comprising: at least one first adhesive layer; the first bonding layer is positioned between two adjacent material layers; first adhesive linkage is provided with at least one first depressed part in one side of one of them in two adjacent material layers, and the projection area of at least one first depressed part on the material layer is located the bending zone of display module assembly, and like this, the display screen can avoid or alleviate the display module assembly and produce the crease when taking place to buckle to can promote the display effect of display screen, and then can promote the visual experience of consumer when using electronic equipment.

Description

Display module, display screen and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of touch control, in particular to a display module, a display screen and electronic equipment.

Background

At present, electronic equipment such as mobile phones and computers are inseparable from our lives, are visible everywhere in the lives, and greatly improve the living standard of people. With the rapid development of communication equipment technology, the related display screen industry is also continuously developed, so that the application range of the display screen is wider and wider.

The display screen generally includes a display module and a glass cover plate, wherein the glass cover plate is located above the display module. The display module generally comprises a module supporting layer, a module display layer and a module covering layer, wherein the module display layer is located between the module supporting layer and the module covering layer, and the module covering layer is located between the module display layer and the glass cover plate. In the related art, two adjacent layers are generally bonded by pressure sensitive adhesive to achieve the fixed connection between the layers.

However, among the above-mentioned scheme, the display screen is when taking place to buckle, and display module assembly produces the crease easily to can influence the display effect of display screen, and then can influence the visual experience of consumer when using electronic equipment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a display module assembly, display screen and electronic equipment, can avoid or alleviate the display module assembly and produce the crease when buckling to can promote the display effect of display screen, and then can promote the visual experience of consumer when using electronic equipment.

In a first aspect, an embodiment of the present application provides a display module, and this display module is applied to flexible display screen, and this display module includes: at least two material layers arranged in a stacked manner; further comprising: at least one first adhesive layer; the first bonding layer is positioned between two adjacent material layers; one surface of the first bonding layer facing one of the two adjacent material layers is provided with at least one first concave part, and the projection area of the at least one first concave part on the material layers is located in the bending area of the display module.

The embodiment of the application provides a display module assembly, this display module assembly is through being provided with first adhesive linkage between two adjacent material layers of range upon range of setting, be provided with at least one first depressed part in one side of one of two adjacent material layers of first adhesive linkage orientation, and, this at least one first depressed part projection area on the material layer is located the bending zone of display module assembly, because the region that corresponds the bending zone of display module assembly on the first adhesive linkage has at least one first depressed part, thus, the display screen is when taking place to buckle, exert pressure when laminating two adjacent material layers, can make two adjacent material layers follow the shape laminating of the first adhesive linkage that is located the bending zone of display module assembly together, thus, when the display screen resumes the flattening state once more from the state of buckling, the creep that two adjacent material layers that are located the bending zone of display module assembly produced can obtain the fast recovery, therefore, two adjacent material layers that can avoid or alleviate the bending zone that is located the display module assembly have redundancy to appear, can avoid or alleviate the display module assembly and produce the crease when buckling, the unevenness phenomenon appears, thereby can promote the experience of the display screen, and then the display screen can promote the visual effect of consumer's electronic equipment when using.

In one possible implementation, the at least two material layers include: the module comprises a module supporting layer, a module display layer and a module covering layer; the module display layer is located between the module supporting layer and the module covering layer.

In one possible implementation, the number of the first adhesive layers is one; the first bonding layer is positioned between the module supporting layer and the module display layer; and at least one first sunken part is arranged on one surface of the first bonding layer facing the module supporting layer or the module display layer.

Through being provided with first adhesive linkage between module supporting layer and module display layer, and first adhesive linkage is provided with at least one first depressed part towards module supporting layer or module display layer's one side, because the place area that corresponds the district of buckling of display module group on the first adhesive linkage has at least one first depressed part, thus, the display screen is when taking place to buckle, exert pressure when laminating module supporting layer and module display layer, can make module supporting layer and module display layer follow the shape laminating of the first adhesive linkage that is located the district of buckling of display module group together, thus, when the display screen resumes the flattening state again from the state of buckling, the creep that module supporting layer and module display layer produced can obtain quick recovery, therefore, can avoid or alleviate module supporting layer and module display layer have the redundancy to appear, can avoid or alleviate the display module group promptly and produce the crease when buckling, unevenness phenomenon appears.

In one possible implementation, the number of the first adhesive layers is one; the first bonding layer is positioned between the module display layer and the module covering layer; the first adhesive layer faces the module display layer or one face of the module covering layer is provided with at least one first concave portion.

Through be provided with first adhesive linkage between module display layer and module overburden, and first adhesive linkage is provided with at least one first depressed part towards in the one side of module display layer or module overburden, because the region in the district of buckling that corresponds display module assembly on the first adhesive linkage has at least one first depressed part, therefore, the display screen is when taking place to buckle, exert pressure when laminating to module display layer and module overburden, can make module display layer and module overburden follow the shape laminating that is located the first adhesive linkage in the district of buckling of display module assembly together, thus, when the display screen resumes the exhibition flat attitude once more from the state of buckling, the produced creep of module display layer and module overburden can obtain the snap-back, therefore, can avoid or alleviate module display layer and module overburden have the redundancy to appear, can avoid or alleviate the display module assembly promptly and produce the crease when buckling, the unevenness phenomenon appears.

In one possible implementation, the number of the first adhesive layers is two; one of the two first bonding layers is positioned between the module supporting layer and the module display layer, and one surface, facing the module supporting layer or the module display layer, of one of the two first bonding layers is provided with at least one first concave part; the other of the two first bonding layers is located between the module display layer and the module covering layer, and the other of the two first bonding layers faces the module display layer or one face of the module covering layer and is provided with at least one first sunken part.

In a possible implementation manner, a second bonding layer is arranged in the first concave part; and the creep recovery rate of the material adopted by the second bonding layer is greater than that of the material adopted by the first bonding layer.

Through being provided with the second adhesive linkage in the first depressed part on first adhesive linkage, and the creep recovery rate of the material that the second adhesive linkage adopted is greater than the creep recovery rate of the material that first adhesive linkage adopted, thus, can further increase the creep recovery rate when two adjacent material layers take place to buckle at the display screen, that is to say, when the display screen resumes the flattening state again from the state of buckling, the produced creep of two adjacent material layers in the district of buckling that is located display module assembly can obtain more quick recovery, therefore, can further avoid or alleviate two adjacent material layers in the district of buckling that is located display module assembly and have the redundancy appearance, can further avoid or alleviate display module assembly promptly and produce the crease when buckling, the unevenness phenomenon appears.

In one possible implementation, the first recess is an arc-shaped recess; alternatively, the first recess is a rectangular recess.

In one possible implementation, the first adhesive layer includes: a first portion and second portions positioned at both sides of the first portion; the material adopted by the second part is the same as that adopted by the first part; the projection area of the first part on the material layer is located in the bending area of the display module, and the projection area of the second part on the material layer is located in the non-bending area of the display module.

In one possible implementation, the first adhesive layer includes: a first portion and second portions positioned at both sides of the first portion; the hardness of the material adopted by the second part is greater than that of the material adopted by the first part; the projection area of the first part on the material layer is located in the bending area of the display module, and the projection area of the second part on the material layer is located in the non-bending area of the display module.

The first bonding layer is divided into the first part located in the bending area of the display module and the second part located in the non-bending area of the display module, the hardness of the material adopted by the second part is larger than that of the material adopted by the first part, therefore, the second part is located on two sides of the first part, the second part with the larger hardness can serve as a retaining wall of the first part with the smaller hardness, and when the display screen is bent, the second part with the larger hardness can limit the deformation of the first part with the smaller hardness, so that the effect of reducing the crease generated in the bending area of the display module is achieved. In addition, the hardness of the material adopted by the second part is higher, so that the impact resistance of the display module is better.

In one possible implementation manner, the method further includes: a third adhesive layer; each of the material layers includes: at least one sub-material layer; the third bonding layer is positioned between two adjacent sub-material layers; one surface of the third bonding layer facing one of the two adjacent sub-material layers is provided with at least one second concave part, and the projection area of the at least one second concave part on the material layer is located in the bending area of the display module.

Because the region of the third adhesive linkage that corresponds the district of buckling of display module assembly has at least one second depressed part, thus, the display screen is when taking place to buckle, exert pressure when laminating two adjacent sub-material layers, can make two adjacent sub-material layers follow the shape laminating of the third adhesive linkage that is located the district of buckling of display module assembly together, thus, when the display screen resumes the flattening state again from the state of buckling, the produced creep of two adjacent sub-material layers that are located the district of buckling of display module assembly can obtain quick recovery, therefore, can avoid or alleviate two adjacent material layers that are located the district of buckling of display module assembly and have the redundancy appearance, can avoid or alleviate the display module assembly promptly and produce the crease when buckling, the unevenness phenomenon appears.

In a possible implementation manner, a fourth bonding layer is arranged in the second concave part; and the creep recovery rate of the material adopted by the fourth bonding layer is greater than that of the material adopted by the third bonding layer.

Through being provided with the fourth adhesive linkage in the second depressed part on the third adhesive linkage, and the creep recovery rate of the material that the fourth adhesive linkage adopted is greater than the creep recovery rate of the material that the third adhesive linkage adopted, thus, can further increase the creep recovery rate when two adjacent sub-material layers take place to buckle at the display screen, that is to say, when the display screen resumes the flattening state again from the state of buckling, the produced creep of two adjacent sub-material layers that are located the bending zone of display module assembly can obtain more quick recovery, therefore, can further avoid or alleviate two adjacent sub-material layers that are located the bending zone of display module assembly and have the redundancy appearance, can further avoid or alleviate the display module assembly and produce the crease when buckling promptly, unevenness appears.

In one possible implementation, the second recess is an arc-shaped recess; or, the second recess is a rectangular recess.

In one possible implementation, the third adhesive layer includes: a third portion and fourth portions located on both sides of the third portion; the material adopted by the fourth part is the same as that adopted by the third part; the projection area of the third part on the material layer is located in the bending area of the display module, and the projection area of the fourth part on the material layer is located in the non-bending area of the display module.

In one possible implementation, the third adhesive layer includes: a third portion and fourth portions located on both sides of the third portion; the hardness of the material adopted by the fourth part is greater than that of the material adopted by the third part; and the projection area of the third part on the material layer is positioned in the bending area of the display module, and the projection area of the fourth part on the material layer is positioned in the non-bending area of the display module.

The third bonding layer is divided into the third part located in the bending area of the display module and the fourth part located in the non-bending area of the display module, the hardness of materials used by the fourth part is larger than that of materials used by the third part, therefore, the fourth part is located on two sides of the third part, the fourth part with the larger hardness can serve as a retaining wall of the third part with the smaller hardness, and when the display screen is bent, the fourth part with the larger hardness can limit deformation of the third part with the smaller hardness, so that the effect of reducing creases generated in the bending area of the display module is achieved. In addition, the hardness of the material adopted by the fourth part is higher, so that the impact resistance of the display module is better.

In a second aspect, an embodiment of the present application provides a display screen, where the display screen at least includes: the glass cover plate and any one of the display modules; the glass cover plate covers the display module.

The embodiment of the application provides a display screen, this display screen includes display module assembly and the glass apron of lid on display module assembly at least, this display module assembly is through being provided with first adhesive linkage between two adjacent material layers of range upon range of setting, be provided with at least one first depressed part on the one side of one of two adjacent material layers of first adhesive linkage orientation, and, this at least one first depressed part projection area on the material layer is located display module assembly's bending zone, because the regional at least one first depressed part that has of the bending zone that corresponds display module assembly on the first adhesive linkage, thus, the display screen is when taking place to buckle, exert pressure when laminating two adjacent material layers, can make two adjacent material layers follow the shape laminating of the first adhesive linkage that is located display module assembly's bending zone together, thus, when the display screen resumes the flattening state from the bending state again, the creep that two adjacent material layers that are located display module assembly's bending zone produced can obtain quick recovery, therefore, two adjacent material layers that can avoid or alleviate the bending zone that is located display module assembly have redundant appearance, and then can avoid or alleviate the folding line of the display module assembly, thereby the promotion effect that the unevenness appears when can promote the display screen.

In a third aspect, an embodiment of the present application provides an electronic device, which at least includes: the display screen is described above.

The embodiment of the application provides an electronic equipment, this electronic equipment includes the display screen at least, this display screen includes display module assembly and glass apron at least, this display module assembly is through being provided with first adhesive linkage between two adjacent material layers of range upon range of setting, be provided with at least one first depressed part on the one side of one of two adjacent material layers of first adhesive linkage orientation, and, this at least one first depressed part projection area on the material layer is located the bending zone of display module assembly, because the area that corresponds the bending zone of display module assembly on the first adhesive linkage has at least one first depressed part, thus, the display screen is when taking place to buckle, exert pressure when laminating two adjacent material layers, can make two adjacent material layers follow the shape laminating together of the first adhesive linkage that is located the bending zone of display module assembly, like this, when the display screen resumes the flattening state from the bending state again, the produced creep that two adjacent material layers that are located the bending zone of display module assembly can obtain quick recovery, therefore, can avoid or be located the bending zone of display module assembly's adjacent two material layers has the redundant material layer to appear, and then can avoid or alleviate the phenomenon when the unevenness appears, thereby the display screen can promote the use effect that the display screen appears.

Drawings

Fig. 1 is a schematic perspective view of a folding-screen mobile phone provided in an embodiment of the present application when the mobile phone is in a folded state;

fig. 2 is a schematic perspective view of a mobile phone with a foldable screen in a half-folded state according to an embodiment of the present application;

fig. 3 is a schematic perspective view of a mobile phone with a foldable screen in an unfolded state according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a display screen in an electronic device according to an embodiment of the present application;

fig. 5 is a schematic cross-sectional view illustrating a display module and a middle frame of an electronic device according to an embodiment of the disclosure;

fig. 6 is a schematic cross-sectional structure view of a display module in an electronic device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a display module in an electronic device according to an embodiment of the present disclosure;

fig. 8 is a schematic structural view illustrating a module supporting layer and a module display layer of a display module according to an embodiment of the present disclosure when the module supporting layer and the module display layer are connected by a first adhesive layer;

fig. 9 is a schematic structural view illustrating a module supporting layer and a module display layer of a display module according to an embodiment of the present disclosure when the module supporting layer and the module display layer are connected by a first adhesive layer;

fig. 10 is a schematic structural view illustrating a module supporting layer and a module display layer in a display module according to an embodiment of the present disclosure, which are connected by a first adhesive layer;

fig. 11 is a schematic structural view illustrating a module supporting layer and a module display layer of a display module according to an embodiment of the present disclosure when the module supporting layer and the module display layer are connected by a first adhesive layer;

fig. 12 is a schematic structural view illustrating a module supporting layer and a module display layer of a display module according to an embodiment of the present disclosure when the module supporting layer and the module display layer are connected by a first adhesive layer;

fig. 13 is a schematic structural view illustrating two adjacent sub-material layers of a module supporting layer connected by a third adhesive layer according to an embodiment of the present disclosure;

fig. 14 is a schematic structural view illustrating two adjacent sub-material layers of a module supporting layer connected by a third adhesive layer according to an embodiment of the present disclosure;

fig. 15 is a schematic structural view illustrating two adjacent sub-material layers of a module supporting layer connected by a third adhesive layer according to an embodiment of the disclosure;

fig. 16 is a schematic structural view illustrating two adjacent sub-material layers of a module supporting layer connected by a third adhesive layer according to an embodiment of the disclosure;

fig. 17 is a schematic structural diagram illustrating a structure of two adjacent sub-material layers in a module supporting layer connected by a third adhesive layer according to an embodiment of the present disclosure.

Description of reference numerals:

100-a display module; 100 a-bending zone; 100 b-a non-inflection zone;

110-a module support layer; 111-sub-material layer; 120-a modular display layer;

130-a module cover layer; 140-a first adhesive layer; 141-a first recess;

142-a first portion; 143-a second part; 150-a second adhesive layer;

160-a third adhesive layer; 161-a second recess; 162-a third portion;

163-fourth; 170-a fourth adhesive layer; 180-a fifth adhesive layer;

200-folding screen mobile phone; 210-a display screen; 211-glass cover plate;

220-a first structural member; 230-a second structural member; 240-a spindle assembly;

250-a rear cover; 260-housing.

Detailed Description

The terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application, as the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The embodiment of the present application provides an electronic device, which may include, but is not limited to, a mobile or fixed terminal having a display screen, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a touch television, an intercom, a netbook, a Point of sale (POS) machine, a Personal Digital Assistant (PDA), a wearable device, a virtual reality device, a wireless usb disk, a bluetooth sound/earphone/glasses, a vehicle front-end device, a car recorder, and a security device.

In the embodiment of the present application, a mobile phone is taken as an example to describe the electronic device, the mobile phone provided in the embodiment of the present application may be a curved-screen mobile phone or a flat-screen mobile phone, and may be a bar-type mobile phone or a folding-screen mobile phone (for example, see a water-drop-shaped folding-screen mobile phone shown in fig. 7).

Referring to fig. 1 to 3, taking the electronic device as a folding screen mobile phone 200 as an example, the folding screen mobile phone 200 may include: a first structural member 220 and a second structural member 230, wherein a bending region is arranged between the first structural member 220 and the second structural member 230. In this embodiment, for example, a rotating shaft assembly 240 may be disposed in the bending region, the rotating shaft assembly 240 is located between the first structural member 220 and the second structural member 230, and the first structural member 220 and the second structural member 230 are rotatably connected through the rotating shaft assembly 240, so as to fold and unfold the first structural member 220 and the second structural member 230.

In this embodiment, as shown in fig. 2 or fig. 3, the folding screen mobile phone 200 may further include: the display screen 210, wherein the display screen 210 may be a flexible screen, and the flexible screen may cover one surface of the first structural member 220, the rotating shaft assembly 240, and the second structural member 230, so that the flexible screen may correspondingly present a folded or unfolded state along with the rotation of the first structural member 220 and the second structural member 230. Illustratively, when the first structural member 220 and the second structural member 230 are rotated toward each other to a folded state (see fig. 1), the flexible screen of the folding screen cell phone 200 is also positioned between the first structural member 220 and the second structural member 230 in the folded state. When the first structural member 220 and the second structural member 230 are rotated away from each other to the unfolded state (see fig. 3), the flexible screen of the folding screen mobile phone 200 is unfolded until the first structural member 220 and the second structural member 230 are located on the same horizontal plane.

In the embodiment of the present application, since the display screen 210 needs to be folded, the display screen 210 may be a flexible display screen, for example, the flexible display screen may be an Organic Light-Emitting Diode (OLED) display screen.

It should be noted that the number of the structural members in the folding mobile phone 200 may be two (see fig. 1 to fig. 3) or more, and when the number of the structural members is more than two, each adjacent structural member may rotate around the rotating shaft assembly 240 parallel to each other, so as to form a multi-layer structural member, or obtain a larger display area after being unfolded. In the embodiment of the present application, the foldable mobile phone 200 is mainly described as an example in which two structural members (i.e., the first structural member 220 and the second structural member 230) are provided.

Further, the folding screen mobile phone 200 may further include: the rear cover 250, as shown in fig. 1 or fig. 2, is located on a surface of the first structural member 220, the rotating shaft assembly 240, and the second structural member 230 facing away from the display screen 210, for example, the first structural member 220, the rotating shaft assembly 240, and the second structural member 230 are located between the display screen 210 and the rear cover 250.

It is to be understood that the illustrated structure of the embodiments of the present application does not constitute a specific limitation to electronic devices. In other of the present embodiments, the electronic device may include more or fewer components than illustrated, or some components may be combined, some components may be split, or a different arrangement of components. For example, the folding screen mobile phone 200 may further include a camera module, a flash, and other devices. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

In addition, referring to fig. 4, the display screen 210 at least includes the display module 100 and a glass cover 211, wherein the glass cover 211 may be located above the display module 100, specifically, the glass cover 211 may cover the display module 100, and a size of the glass cover 211 may be greater than or equal to a size of the display module 100.

In this application embodiment, the display module 100 and the glass cover plate 211 can be connected to each other through an Adhesive layer, and specifically, the display module 100 and the glass cover plate 211 can be bonded to each other through an Optical Clear Adhesive (OCA), and certainly, in some other examples, the display module 100 and the glass cover plate 211 can be attached to each other through other methods, for example, the display module 100 and the glass cover plate 211 can be hot-pressed to form the display screen 210.

The display module 100 generally includes a multi-layer structure, and each layer may further include a multi-layer sub-structure. In the related art, for the display module 100, the adjacent two layers of structures and the adjacent two layers of sub-structures in each layer of structure are generally adhered by pressure sensitive adhesive to achieve the fixed connection between the above layers. However, when the display panel 210 is bent, the adhesive (i.e., the pressure sensitive adhesive) located in the bending region of the display module 100 may be pressed and deformed toward the non-bending regions on both sides, so that each layer structure is easily subject to creep and stretching. And when display screen 210 recovered to the flattening state again from the state of buckling, display module assembly 100's material creep can't recover fast completely, leads to easily having the redundancy to appear in the district of buckling, and this redundancy will lead to the unevenness phenomenon to appear in the district of buckling, and display module assembly 100 produces the crease easily promptly to can influence display screen 210's display effect, and then can influence the visual experience of consumer when using electronic equipment.

Accordingly, the present embodiment provides a new display module 100, and the display module 100 can be applied to an electronic device (e.g., a mobile phone or a computer) having a display screen for solving the above technical problems.

The detailed structure of the display module 100 will be described in detail below with reference to the accompanying drawings, which illustrate various embodiments.

Referring to fig. 5 to 8, an embodiment of the present application provides a display module 100, where the display module 100 may be applied to a display screen 210 (e.g., a flexible display screen), and the display module 100 may include: at least two material layers (e.g., the module support layer 110, the module display layer 120, and the module cover layer 130 in fig. 5 or 6) are stacked.

In addition, the display module 100 may further include: at least one first adhesive layer 140, the first adhesive layer 140 is located between two adjacent material layers, a surface of the first adhesive layer 140 facing one of the two adjacent material layers is provided with at least one first recess 141, and a projection area of the at least one first recess 141 on the material layer is located in the bending area 100a of the display module 100 (see fig. 7).

Because the area corresponding to the bending area 100a of the display module 100 on the first adhesive layer 140 has at least one first recess 141, that is, the pattern design is performed on the first adhesive layer 140 located at the bending area 100a of the display module 100 in the embodiment of the present application, in this way, when the display screen 210 is bent, pressure is applied when two adjacent material layers are attached, so that the two adjacent material layers are attached together along with the shape of the first adhesive layer 140 located at the bending area 100a of the display module 100, the first adhesive layer 140 located at the bending area 100a of the display module 100 can reduce the material deformation amount caused by the bending stress, and further can play a role of reducing the crease.

When the display screen 210 resumes the flattening state again from the state of buckling, the produced creep of two adjacent material layers that are located the bending zone 100a of display module assembly 100 can obtain recovering fast, therefore, two adjacent material layers that can avoid or alleviate the bending zone 100a that is located display module assembly 100 have the redundancy to appear, can avoid or alleviate display module assembly 100 and produce the crease when buckling promptly, unevenness appears, thereby can promote display screen 210's display effect, and then can promote the visual experience of consumer when using electronic equipment.

Specifically, as shown in fig. 5 or fig. 6, in the present embodiment, the at least two material layers may include: module supporting layer 110, module display layer 120 and module overburden 130, module display layer 120 is located between module supporting layer 110 and module overburden 130.

The module supporting layer 110, the module display layer 120, and the module covering layer 130 may be made of flexible materials, and have better bending resistance.

It is understood that the specific number and location of the first adhesive layer 140 include, but are not limited to, the following possible implementations:

one possible implementation is: the number of the first adhesive layers 140 is one, the first adhesive layers 140 are located between the module supporting layer 110 and the module display layer 120, and at least one first recess 141 is disposed on a surface of the first adhesive layers 140 facing the module supporting layer 110 or the module display layer 120.

Because the area of the first adhesive layer 140 corresponding to the bending area 100a of the display module 100 has at least one first recess 141, in this way, when the display screen 210 is bent, pressure is applied when the module supporting layer 110 and the module display layer 120 are attached, so that the module supporting layer 110 and the module display layer 120 can be attached together along with the shape of the first adhesive layer 140 located in the bending area 100a of the display module 100, in this way, when the display screen 210 is restored from the bent state to the flattened state again, creep deformation generated by the module supporting layer 110 and the module display layer 120 can be quickly restored, and therefore, redundancy of the module supporting layer 110 and the module display layer 120 can be avoided or alleviated, that is, crease and unevenness generated when the display module 100 is bent can be avoided or alleviated.

For example, as shown in fig. 8, one first recess 141 is disposed on a surface of the first adhesive layer 140 facing the module display layer 120, or, as shown in fig. 9, four first recesses 141 are disposed on a surface of the first adhesive layer 140 facing the module display layer 120.

Another possible implementation is: the number of the first adhesive layer 140 is one, the first adhesive layer 140 is located between the module display layer 120 and the module cover layer 130, and at least one first recess 141 is disposed on one surface of the first adhesive layer 140 facing the module display layer 120 or the module cover layer 130.

Because the area of the first adhesive layer 140 corresponding to the bending area 100a of the display module 100 has at least one first recess 141, in this way, when the display screen 210 is bent, pressure is applied when the module display layer 120 and the module cover layer 130 are attached, so that the module display layer 120 and the module cover layer 130 can be attached together along with the shape of the first adhesive layer 140 located in the bending area 100a of the display module 100, in this way, when the display screen 210 is restored from the bent state to the flattened state again, creep deformation generated by the module display layer 120 and the module cover layer 130 can be quickly restored, and therefore, redundancy of the module display layer 120 and the module cover layer 130 can be avoided or reduced, that is, creases generated when the display module 100 is bent can be avoided or reduced, and unevenness can be generated.

Yet another possible implementation is: the number of the first adhesive layers 140 is two, one of the two first adhesive layers 140 is located between the module supporting layer 110 and the module display layer 120, one of the two first adhesive layers 140 is provided with at least one first recess 141 on a surface facing the module supporting layer 110 or the module display layer 120, the other of the two first adhesive layers 140 is located between the module display layer 120 and the module covering layer 130, and one of the two first adhesive layers 140 is provided with at least one first recess 141 on a surface facing the module display layer 120 or the module covering layer 130.

In addition, referring to fig. 10 and 11, in some embodiments, the second adhesive layer 150 may be disposed in the first recess 141, and a creep recovery rate of a material used for the second adhesive layer 150 may be greater than a creep recovery rate of a material used for the first adhesive layer 140.

Like this, can further increase the creep recovery rate of two adjacent material layers when display screen 210 takes place to buckle, that is to say, when display screen 210 resumes the flattening state again from the state of buckling, the produced creep of two adjacent material layers that are located the bending zone 100a of display module assembly 100 can obtain more quick recovery, therefore, two adjacent material layers that can further avoid or alleviate the bending zone 100a that is located display module assembly 100 have the redundancy to appear, can further avoid or alleviate display module assembly 100 and produce the crease when buckling promptly, the unevenness appears.

In a possible implementation manner, the creep recovery rate of the material used for the second adhesive layer 150 may be greater than 90%, and for example, the creep recovery rate of the material used for the second adhesive layer 150 may be 90%,91%,92%,93%,94%,95%,96%,97%,98%, or 99%, and the like, which is not limited in this embodiment of the application.

In the embodiment of the present application, the first recess 141 may be an arc-shaped recess (see fig. 8 or fig. 10), that is, in fig. 8 and fig. 10, the first adhesive layer 140 located at the bending region 100a of the display module 100 is patterned to have a fan shape. Alternatively, the first recess 141 may be a rectangular recess (see fig. 9 or fig. 11), that is, in fig. 9 and fig. 11, the first adhesive layer 140 located at the bending region 100a of the display module 100 is patterned, and the number of the first recess 141 is multiple, so that a great wall shape may be formed.

As shown in fig. 12, in the embodiment of the present application, the first adhesive layer 140 may include: the display module comprises a first part 142 and second parts 143 located on two sides of the first part 142, wherein the materials used for the second parts 143 are the same as the materials used for the first part 142, the projection area of the first part 142 on the material layer is located in the bending area 100a of the display module 100, and the projection area of the second parts 143 on the material layer is located in the non-bending area 100b of the display module 100.

Alternatively, in other embodiments, the material used for the second portion 143 is different from the material used for the first portion 142, and the hardness of the material used for the second portion 143 may be greater than the hardness of the material used for the first portion 142.

The first adhesive layer 140 is divided into the first portion 142 located in the bending region 100a of the display module 100 and the second portion 143 located in the non-bending region 100b of the display module 100, and the hardness of the material used for the second portion 143 is greater than that of the material used for the first portion 142, so that the second portion 143 is located on both sides of the first portion 142, and the second portion 143 with higher hardness can serve as a retaining wall for the first portion 142 with lower hardness, and when the display screen 210 is bent, the second portion 143 with higher hardness can limit the deformation of the first portion 142 with lower hardness, so as to achieve the effect of reducing the crease generated in the bending region 100a of the display module 100.

In addition, the hardness of the material used for the second portion 143 is relatively high, so that the impact resistance of the display module 100 is better. Moreover, the material used for the second portion 143 does not need to meet the requirement of bending performance, so that the colloid with good adhesive property and excellent impact resistance can be selected. Thus, the range and space of choice of the material used for the first adhesive layer 140 are increased to some extent.

Referring to fig. 13 or 14, the display module 100 may further include: a third adhesive layer 160, each of which may include: at least one sub-material layer 111, the third adhesive layer 160 is located between two adjacent sub-material layers 111, one surface of the third adhesive layer 160 facing one of the two adjacent sub-material layers 111 is provided with at least one second concave portion 161, and a projection area of the at least one second concave portion 161 on the material layer is located in the bending area 100a of the display module 100.

Because the third adhesive layer 160 has at least one second concave portion 161 corresponding to the area of the bending region 100a of the display module 100, when the display screen 210 is bent, pressure is applied when the two adjacent sub-material layers 111 are attached, so that the two adjacent sub-material layers 111 can be attached together along with the shape of the third adhesive layer 160 located in the bending region 100a of the display module 100, and thus, when the display screen 210 is restored from the bent state to the flattened state again, creep generated by the two adjacent sub-material layers 111 located in the bending region 100a of the display module 100 can be restored quickly, and therefore, redundancy of the two adjacent material layers located in the bending region 100a of the display module 100 can be avoided or reduced, that is, creases and unevenness of the display module 100 can be avoided or reduced when the display module 100 is bent.

Referring to fig. 15 and 16, in the embodiment of the present application, a fourth adhesive layer 170 may be further disposed in the second recess 161, and a creep recovery rate of a material used for the fourth adhesive layer 170 may be greater than a creep recovery rate of a material used for the third adhesive layer 160.

Like this, can further increase the creep recovery rate of two adjacent sub material layers 111 when the display screen 210 takes place to buckle, that is to say, when the display screen 210 resumes the flattening state again from the state of buckling, the creep that two adjacent sub material layers 111 that are located the bending zone 100a of display module assembly 100 produced can obtain more quick recovery, therefore, two adjacent sub material layers 111 that can further avoid or alleviate the bending zone 100a that is located display module assembly 100 have the redundancy to appear, can further avoid or alleviate display module assembly 100 and produce the crease when buckling, the unevenness appears.

In a possible implementation manner, the creep recovery rate of the material used for the fourth adhesive layer 170 may be greater than 90%, and for example, the creep recovery rate of the material used for the fourth adhesive layer 170 may be 90%,91%,92%,93%,94%,95%,96%,97%,98%, or 99%, and the like, which is not limited in this application.

It should be noted that the numerical values and numerical ranges related to the embodiments of the present application are approximate values, and there may be a range of errors due to the manufacturing process, and such errors may be considered as negligible by those skilled in the art.

In the embodiment of the present application, the second recess 161 may be an arc-shaped recess (see fig. 13 or 15), or the second recess 161 may be a rectangular recess (see fig. 14 or 16). In fig. 14 and 16, the number of the first recesses 141 is plural, and a great wall shape can be formed.

In addition, as shown in fig. 17, in the embodiment of the present application, the third adhesive layer 160 may include: the third portion 162 and the fourth portions 163 located at two sides of the third portion 162, the material used for the fourth portions 163 is the same as the material used for the third portion 162, wherein the projection area of the third portion 162 on the material layer is located in the bending region 100a of the display module 100, and the projection area of the fourth portions 163 on the material layer is located in the non-bending region 100b of the display module 100.

Alternatively, in some other embodiments, the material used for the fourth portion 163 is different from the material used for the third portion 162, and the hardness of the material used for the fourth portion 163 may be greater than the hardness of the material used for the third portion 162.

The third adhesive layer 160 is divided into the third portion 162 located in the bending region 100a of the display module 100 and the fourth portion 163 located in the non-bending region 100b of the display module 100, and the hardness of the material used for the fourth portion 163 is greater than that of the material used for the third portion 162, so that the fourth portion 163 located on both sides of the third portion 162 and having a greater hardness can serve as a retaining wall for the third portion 162 having a lesser hardness, and when the display screen 210 is bent, the fourth portion 163 having a greater hardness can limit the deformation of the third portion 162 having a lesser hardness, thereby reducing the crease generated in the bending region 100a of the display module 100.

In addition, the fourth portion 163 is made of a material with high hardness, so that the display module 100 has better impact resistance. Moreover, the material used for the fourth portion 163 does not need to meet the requirement of bending performance, so that a colloid with good adhesive property and excellent impact resistance is selected, and thus, the selection range and space of the material used for the third adhesive layer 160 are increased to a certain extent.

In addition, it is easily understood that, in the embodiment of the present application, referring to fig. 5, a side of the display module 100 facing the middle frame 220 may be connected to the middle frame 220 through the fifth adhesive layer 180, and a housing 260 is further connected to both ends of the middle frame 220, and the middle frame 220 and the housing 260 together define the display module 100 in an accommodating space formed by the middle frame 220 and the housing 260.

It should be noted that the material used for the fifth Adhesive layer 180 may be a Pressure Sensitive Adhesive (PSA), wherein the Pressure Sensitive Adhesive is a Pressure Sensitive Adhesive film material, and can be formed by applying Pressure by hand (or by using a roller or other devices), and has a durable Adhesive force, cohesive force, and viscoelastic property without auxiliary curing such as heating, catalyst, or UV ultraviolet irradiation.

Alternatively, in some other embodiments, the material used for the fifth adhesive layer 180 may be a heat-sensitive adhesive or a photosensitive adhesive formed by an acrylic semi-polymer.

Alternatively, the material used for the fifth Adhesive layer 180 may also be Optical Clear Adhesive (OCA). The optical cement is made of transparent materials and has a good optical effect.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an indirect connection through an intermediate medium, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to apparatus or components, in embodiments or to components thereof, may be understood as not necessarily referring to the particular orientation, construction or operation as such. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "may include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and not for limiting the same, and although the embodiments of the present application are described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (16)

1. The utility model provides a display module assembly, is applied to in the flexible display screen, its characterized in that includes:

at least two material layers arranged in a stacked manner;

further comprising: at least one first adhesive layer; the first bonding layer is positioned between two adjacent material layers;

one surface of the first bonding layer facing one of the two adjacent material layers is provided with at least one first concave part, and the projection area of the at least one first concave part on the material layers is located in the bending area of the display module.

2. The display module of claim 1, wherein the at least two material layers comprise: the module comprises a module supporting layer, a module display layer and a module covering layer;

the module display layer is located between the module supporting layer and the module covering layer.

3. The display module according to claim 2, wherein the number of the first adhesive layers is one; the first bonding layer is positioned between the module supporting layer and the module display layer;

and at least one first sunken part is arranged on one surface of the first bonding layer facing the module supporting layer or the module display layer.

4. The display module according to claim 2, wherein the number of the first adhesive layers is one; the first bonding layer is positioned between the module display layer and the module covering layer;

the first adhesive layer faces the module display layer or one face of the module covering layer is provided with at least one first concave portion.

5. The display module according to claim 2, wherein the number of the first adhesive layers is two; one of the two first bonding layers is positioned between the module supporting layer and the module display layer, and one surface, facing the module supporting layer or the module display layer, of one of the two first bonding layers is provided with at least one first concave part;

the other of the two first bonding layers is located between the module display layer and the module covering layer, and the other of the two first bonding layers faces the module display layer or one surface of the module covering layer and is provided with at least one first concave part.

6. The display module assembly according to any one of claims 1-5, wherein a second adhesive layer is disposed in the first recess;

and the creep recovery rate of the material adopted by the second bonding layer is greater than that of the material adopted by the first bonding layer.

7. The display module assembly according to any one of claims 1-5, wherein the first concave portion is an arc-shaped concave portion; alternatively, the first recess is a rectangular recess.

8. The display module according to any one of claims 1-5, wherein the first adhesive layer comprises: a first portion and second portions positioned at both sides of the first portion;

the material adopted by the second part is the same as that adopted by the first part;

the projection area of the first part on the material layer is located in the bending area of the display module, and the projection area of the second part on the material layer is located in the non-bending area of the display module.

9. The display module according to any one of claims 1-5, wherein the first adhesive layer comprises: a first portion and second portions located on both sides of the first portion;

the hardness of the material adopted by the second part is greater than that of the material adopted by the first part;

the projection area of the first part on the material layer is located in the bending area of the display module, and the projection area of the second part on the material layer is located in the non-bending area of the display module.

10. The display module according to any one of claims 1-5, further comprising: a third adhesive layer; each of the material layers includes: at least one sub-material layer;

the third bonding layer is positioned between two adjacent sub-material layers;

one surface of the third bonding layer facing one of the two adjacent sub-material layers is provided with at least one second concave part, and the projection area of the at least one second concave part on the material layer is located in the bending area of the display module.

11. The display module assembly according to claim 10, wherein a fourth adhesive layer is disposed in the second recess;

and the creep recovery rate of the material adopted by the fourth bonding layer is greater than that of the material adopted by the third bonding layer.

12. The display module of claim 10, wherein the second recessed portion is an arc-shaped recessed portion; or the second depressed part is a rectangular depressed part.

13. The display module according to claim 11 or 12, wherein the third adhesive layer comprises: a third portion and fourth portions positioned on both sides of the third portion;

the material adopted by the fourth part is the same as that adopted by the third part;

the projection area of the third part on the material layer is located in the bending area of the display module, and the projection area of the fourth part on the material layer is located in the non-bending area of the display module.

14. The display module according to claim 11 or 12, wherein the third adhesive layer comprises: a third portion and fourth portions located on both sides of the third portion;

the hardness of the material adopted by the fourth part is greater than that of the material adopted by the third part;

and the projection area of the third part on the material layer is positioned in the bending area of the display module, and the projection area of the fourth part on the material layer is positioned in the non-bending area of the display module.

15. A display screen, comprising at least: a glass cover plate and the display module according to any one of the claims 1 to 14;

the glass cover plate covers the display module.

16. An electronic device, characterized in that it comprises at least: a display screen according to claim 15.

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