CN113824819B

CN113824819B - Flexible screen assembly and terminal

Info

Publication number: CN113824819B
Application number: CN202010558000.9A
Authority: CN
Inventors: 陈博
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2022-11-22
Anticipated expiration: 2040-06-18
Also published as: WO2021253942A1; CN113824819A

Abstract

The application relates to the technical field of display screens, in particular to a flexible screen assembly and a terminal. The flexible screen assembly includes a flexible display screen; a folding housing assembly to which the flexible display screen is connected, wherein the folding housing assembly includes a folder; the sliding piece is connected to the end face, facing the folding shell component, of the flexible display screen, and the sliding piece is arranged on each of two sides of the folding piece; the sliding piece is in sliding fit with the folding shell component, and the sliding direction of the sliding piece is perpendicular to the axis of the folding piece. The utility model provides a flexible screen assembly and terminal's structural design is reasonable, can prevent that flexible display screen from coming unstuck, arching, has improved the result of use.

Description

Flexible screen assembly and terminal

Technical Field

The application relates to the technical field of display screens, in particular to a flexible screen assembly and a terminal.

Background

With the continuous development of display technology, terminal devices derived from flexible display screens gradually become a development trend of mobile electronic products. When the display terminal is in an unfolded state, a larger display area can be obtained, and the visual effect is improved; under the folding state, a smaller volume can be obtained, and the portable type multifunctional desk is convenient for a user to carry.

However, because the flexible display screen is arranged in a multilayer structure, when the display terminal is folded, the flexible display screen is easy to have the problems of arching, degumming and the like, and the use of the terminal equipment is influenced.

Disclosure of Invention

The application provides a flexible screen assembly and terminal, and the structural design at this flexible screen assembly and terminal is reasonable, can prevent that flexible display screen from coming unstuck, arching, has improved the result of use.

A first aspect of the present application provides a flexible screen assembly comprising:

a flexible display screen;

a folding housing assembly to which the flexible display screen is connected, wherein the folding housing assembly includes a folder;

the sliding piece is connected to the end face, facing the folding shell component, of the flexible display screen, and the sliding piece is arranged on each of two sides of the folding piece;

the sliding piece is in sliding fit with the folding shell component, and the sliding direction of the sliding piece is perpendicular to the axis of the folding piece.

Further, the folding housing assembly further comprises:

a first housing;

the first shell is connected with the second shell through the folding piece;

and the adhesive layers are arranged at intervals, and the first shell and the second shell are bonded with the flexible display screen through the adhesive layers.

Further, a first slide way is formed between every two adjacent adhesive layers;

the sliding parts are multiple, and each sliding part comprises a first sliding part;

the first sliding parts correspond to the first slide ways one by one and are in sliding fit with each other.

Furthermore, a plurality of second slide ways are arranged on the first shell and the second shell;

the sliding piece further comprises a second sliding part, and the first sliding part extends outwards away from the end face of the flexible display screen to form the second sliding part;

the second sliding parts correspond to the second slide ways one by one and are in sliding fit with each other.

Further, preset intervals are respectively arranged between the first sliding portion and the first slide way and between the second sliding portion and the second slide way.

Further, the folding housing assembly further comprises a bending support;

the bending support piece is located at the position, facing the end face of the flexible screen, of the folding piece, and the bending areas of the first shell, the second shell and the flexible display screen are connected with the bending support piece.

Further, the folder includes:

the first connecting part is connected with the first shell;

a second connecting portion to which the second housing is connected;

the first connecting portion is connected with the second connecting portion through the rotating shaft.

Further, the folding case assembly further comprises:

the first protection piece is connected to the outer edge of the first shell;

a second protector attached to an outer edge of the second housing;

the first protection member and the second protection member are both higher than or equal to the upper surface of the flexible display screen.

In this application, all be provided with the slider through the both sides at the folded piece, and the slip direction (Y axle) of slider is mutually perpendicular with the axis direction (X axle) of folded piece, it is concrete, when flexible screen assembly buckles, along the axis direction of perpendicular to folded piece, the both ends of flexible display screen can take place to slide with folding shell subassembly under the effect of slider respectively, thereby the holistic atress size between each rete of even reduction, and then satisfy the wrong layer amount that flexible display screen needs between each rete of bending in-process, avoid the flexible display screen inwards buckle or outwards buckle the degumming that appears in-process of operation, the phenomenon of arching takes place, the effect when having improved the reliability of this flexible screen assembly and having used.

Besides, connect the slider on the terminal surface of flexible display screen orientation folding shell subassembly, can also improve the holistic structural strength of flexible display screen, the better user demand who has satisfied flexible display screen, simultaneously, this kind of design, simple structure to low in manufacturing cost accords with the condition of mass production, has splendid market perspective.

A second aspect of the present application provides a terminal comprising the flexible screen assembly described above.

In the present application, the terminal has the same advantages as the flexible screen assembly described above, and the description thereof is omitted here for brevity.

Drawings

Fig. 1 is a schematic structural view of a flexible screen assembly in the prior art when bent;

FIG. 2 is a schematic structural diagram of a flexible screen assembly provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a flexible display, a slider and an adhesive layer according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a flexible screen assembly provided in the embodiment of the present application and a flexible screen assembly in the prior art when they are bent respectively;

FIG. 5 is an exploded view of a flexible screen assembly provided by an embodiment of the present application;

fig. 6 is a schematic structural diagram of a sliding piece, a first slideway, and a second slideway provided in an embodiment of the present application.

FIG. 7 is an enlarged view taken at A in FIG. 6;

fig. 8 is a schematic structural diagram of a flexible screen assembly provided in an embodiment of the present application in a bent state;

FIG. 9 is a schematic structural view of a flexible screen assembly provided in an embodiment of the present application in an unfolded state;

FIG. 10 is a schematic structural view of a folding housing assembly provided in accordance with an embodiment of the present application;

fig. 11 is an enlarged view at B in fig. 10.

Reference numerals are as follows:

1 a-a flexible display screen;

2 a-folding the housing assembly;

3 a-an adhesive layer;

1-a flexible display screen;

11-a first non-inflection zone;

12-a second non-inflection zone;

13-a bending zone;

2-folding the housing assembly;

21-a folding member;

211-a first connection;

212-a second connection;

213-a rotating shaft;

22-a first housing;

23-a second housing;

24-a first guard;

25-a second protection;

26-an adhesive layer;

27-a bending support;

3-a slide;

31-a first sliding part;

32-a second sliding part;

4-a first slideway;

5-a second slideway;

6-cover plate.

Detailed description of the preferred embodiments

The terminology used in the description of the embodiments section 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 present application.

Electronic terminals such as mobile phones, tablet computers, intelligent wearable devices and the like have become indispensable objects at present, so that the life is enriched, and the life quality is also improved. In the background of the era of rapid development of science and technology, people not only require that an electronic terminal has good performance, but also put forward higher requirements on the appearance of the electronic terminal.

Taking a mobile phone as an example, none of the mobile phones from a keyboard key mobile phone to a touch screen mobile phone to a large-size mobile phone and the most popular 'full screen' mobile phone at present does not consider the experience of the user. Further, for better satisfying the experience of the user, the flexible display screen 1a has a characteristic of being able to be bent or curved, and the derived foldable terminal device can obtain a larger display area in the unfolded state, and is convenient for the user to carry in the folded state, which has become the development trend of the current mobile terminal.

Specifically, the flexible display panel 1a is a multi-film structure, and the films are connected by a plating layer or an Adhesive layer 3a (for example, optical Clear Adhesive, OCA for short), wherein the plating layer or the Adhesive layer 3a used for connecting the films has elasticity, and when the flexible display panel 1a and the folding housing assembly 2a of the terminal are bent synchronously, as shown in fig. 1, a stress formed by a dislocation displacement (a dislocation phenomenon) between the films can be absorbed by the Adhesive layer 3a or the plating layer, thereby achieving the bending of the flexible display panel 1a and the length constancy after the flexible display panel is unfolded. However, because the elastic performance of the coating or the adhesive layer 3a is limited, as the folding times increase, when the adhesive layer 3a and the coating cannot meet the stress strain of the dislocation displacement between the film layers, the problems of separation, arching or degumming occur between the film layers, which causes the abnormal display of the flexible display screen 1 a.

In order to solve the above problem, in order to prevent the flexible display screen 1 from being debonded and arched during the inward bending or outward bending operation, as shown in fig. 2, a flexible screen assembly is provided in this embodiment, and the flexible screen assembly includes the flexible display screen 1, a foldable housing assembly 2, and a sliding member 3.

Specifically, the flexible display screen 1 is connected with the folding shell component 2, the sliding component 3 is connected to the lower end face of the flexible display screen 1 (the flexible display screen 1 faces the end face of the folding shell component 2), and the sliding component 3 is located between the flexible display screen 1 and the folding shell component 2, wherein the sliding component 3 is in sliding fit with the folding shell component 2, and the sliding direction (Y axis) of the sliding component 3 is parallel to the staggered layer direction of the flexible display screen 1, and the sliding component 3 parallel to the staggered layer direction is designed on the flexible display screen 1, so that the sliding fit between the flexible display screen 1 and the folding shell component 2 is realized, as shown in fig. 2 and fig. 3, when the flexible display screen assembly is bent, the flexible display screen 1 can generate relative displacement with the folding shell component 2 under the effect of the sliding component 3, the stress between the film layers of the flexible display screen 1 is reduced by the sliding of the flexible display screen 1 and the folding shell component 2, and further, the required staggered layer amount between the film layers of the flexible display screen 1 in the bending process is met, and the phenomenon that the flexible display screen 1 is bent inwards or outwards, and the degumming reliability is improved, and the degumming effect of the flexible display screen assembly is improved.

In addition, connect slider 3 on the terminal surface of flexible display screen 1 towards folding shell subassembly 2, can also improve the holistic structural strength of flexible display screen 1, better satisfied the user demand of flexible display screen 1, simultaneously, this kind of design, simple structure to low in manufacturing cost accords with the condition of mass production, has splendid market perspective.

In this embodiment, the flexible display panel 1 may be an organic light emitting diode display panel, an active matrix organic light emitting diode display panel, or an active matrix organic light emitting diode display panel. Further, the multi-layer structure of the flexible display panel 1 may include a cathode layer, an organic light emitting layer, and an anode layer, and may also include an electron transport layer, a polarizer layer, and so on, which will not be described in detail herein.

The sliding member 3 may be a cube, a cylinder, or the like, and the specific shape structure of the sliding member 3 may also be designed according to the structure of the flexible screen assembly, and other sliding structures may also be adopted, and in this embodiment, the structure of the sliding member 3 is not specifically limited. The sliding member 3 may be connected to the lower end surface of the flexible display panel 1 by bonding or plating.

As shown in fig. 5, in particular, the folding housing assembly 2 includes a first housing 22, a second housing 23 and a folding member 21, the first housing 22 is hinged to the second housing 23 via the folding member 21, so as to realize folding and unfolding of the flexible screen assembly, and the sliding member 3 can be separately designed on the same side of the folding member 21. In this embodiment, for the phenomenon that the flexible display screen 1 can better prevent degumming and arching when bending, both sides of the folding piece 21 are provided with the sliding parts 3, and the sliding direction (Y axis) of the sliding parts 3 is perpendicular to the axial direction (X axis) of the folding piece 21, by arranging the sliding parts 3 on both sides of the folding piece 21, concretely, the sliding parts 3 are respectively arranged on the first shell 22 and the second shell 23 along the axial direction (X axis) of the folding piece 21, when the flexible display screen assembly is bent, along the axial direction perpendicular to the folding piece 21, both ends of the flexible display screen 1 can slide with the corresponding first shell 22 and the second shell 23 under the effect of the sliding parts 3, respectively, thereby uniformly reducing the overall stress between the film layers.

Other electronic components, such as a camera, an earphone, a headphone, a button, a battery, and the like, may also be disposed on the first housing 22 and the second housing 23, and the electronic components disposed on the first housing 22 and the second housing 23 are not limited in this embodiment of the application.

In this embodiment, the first housing 22, the second housing 23, and the flexible display screen 1 may be connected to each other through an adhesive material, specifically, a plurality of adhesive layers 26 are disposed between the first housing 22 and the flexible display screen 1 and between the second housing 23 and the flexible display screen 1, the first housing 22 and the second housing 23 are adhered to the flexible display screen 1 through the adhesive layers 26, specifically, a part of the flexible display screen 1 is fixed to the first housing 22 through the adhesive layer 26, a part of the flexible display screen is fixed to the second housing 23 through the adhesive layer 26, and the rest of the flexible display screen is located between the first housing 22 and the second housing 23.

As shown in fig. 2, fig. 3 and fig. 6, wherein, a plurality of adhesive layers 26 are arranged at intervals, and this structural design reduces the amount of adhesive between the flexible display screen 1 and both the first housing 22 and the second housing 23, thereby reducing the fixing stress between the flexible display screen 1 and the folding housing assembly 2, improving the smoothness of the flexible display screen 1 when sliding between the first housing 22 and the second housing 23, better meeting the required staggered layer amount when the flexible display screen 1 is bent, and avoiding the degumming and arching of the flexible display screen 1.

In the present embodiment, the adhesive layer 26 may be double-sided adhesive, OCA, acrylic, rubber, silicon, or a combination thereof, and is not particularly limited as long as the casing and the flexible display 1 can be firmly connected to each other.

As shown in fig. 6 and 7, in this embodiment, in order to improve the stability of the sliding member 3 during the movement, specifically, a first sliding channel 4 is formed between two adjacent adhesive layers 26, where the sliding member 3 is multiple, and each sliding member 3 includes a first sliding portion 31, the first sliding portions 31 correspond to the first sliding channels 4 one by one and are in sliding fit with each other, and by the design of the first sliding channels 4, the stability of the movement of the sliding member 3 can be ensured, and the movement track of the sliding member 3 is ensured to be constantly kept along the staggered direction of the flexible display screen 1, so that the sliding fit between the flexible display screen 1 and the folding housing assembly 2 is utilized to reduce the stress between the film layers of the flexible display screen 1, and further, the required staggered displacement between the film layers of the flexible display screen 1 during the bending process is met.

In the present embodiment, the sliding member 3 may be made of metal, silicone, resin, or other materials, but is not limited to the above materials, and specifically, the sliding member 3 may have a rectangular parallelepiped or cylindrical structure.

As shown in fig. 6 and 7, further, in order to better improve the motion stability of the sliding member 3, in this embodiment, the first housing 22 and the second housing 23 may also be respectively provided with a plurality of second sliding rails 5, specifically, the sliding member 3 further includes a second sliding portion 32, wherein the first sliding portion 31 extends outwards away from the end surface of the flexible display screen 1 to form the second sliding portion 32, the second sliding portions 32 correspond to the second sliding rails 5 one by one and are in sliding fit with each other, and by additionally providing the second sliding rails 5, the motion stability of the sliding member 3 can be better ensured, and further, the reliability of the flexible screen assembly is better improved.

The end surfaces of the first housing 22 and the second housing 23 facing the flexible display screen 1 are recessed to form the second sliding channel 5, and also, in a design manner similar to the first sliding channel 4, the adhesive layers 26 are disposed on the end surfaces of the first housing 22 and the second housing 23 facing the flexible display screen 1, and are spaced from each other by the adhesive layers 26 to form the second sliding channel 5, in this embodiment, the design manner of the second sliding channel 5 is not specifically limited.

In the present embodiment, in order to improve the smoothness of the sliding member 3 during movement, preset distances (not shown) are respectively provided between the first sliding portion 31 and the first slideway 4 and between the second sliding portion 32 and the second slideway 5, and by setting the preset distances, the contact between the first sliding portion 31 and the first slideway 4 and the contact between the second sliding portion 32 and the second slideway 5 can be avoided, so as to reduce the friction resistance, and improve the movement smoothness of the sliding member 3 while preventing the movement track of the sliding member 3 from deviating.

Further, for the design of the first slide way 4, the size of the first slide way 4 can be changed by adjusting the parameters of the volume, the spacing size and the like of the adhesive layer 26, and for the design of the second slide way 5, the size of the second slide way 5 can be changed by changing the parameters of the depth, the width and the like of the recess of the first casing 22 and the second casing 23, wherein the size design of the first slide way 4 and the second slide way 5 is not limited to the above-mentioned manner.

In order to improve the smoothness of the slider 3 during movement, a lubricant may be applied to the first and

second slideways

4 and 5, and the frictional resistance between the first sliding portion 31 and the first slideway 4 and between the second sliding portion 32 and the second slideway 5 may be further reduced by the lubricating effect of the lubricant.

In order to enable the first housing 22 and the second housing 23 to be stacked on each other, the folding member 21 may be made of a material with good elasticity, and the folding member 21 is deformed to enable the first housing 22 and the second housing 23 to rotate along the axis of the folding member 21, as shown in fig. 8, when the included angle α between the first housing 22 and the second housing 23 is less than 180 °, the flexible screen assembly is in a folded state; as shown in fig. 9, when the included angle α between the first housing 22 and the second housing 23 increases to 180 °, the flexible screen assembly is in the unfolded state. The folding member 21 may be specifically developed according to the design structure of the flexible screen assembly, and may also adopt other folding structures.

As shown in fig. 10, in the present embodiment, a possible design structure of the folding member 21 is provided, specifically, the folding member 21 includes a first connecting portion 211, a second connecting portion 212, and a rotating shaft 213, the first housing 22 is connected to the first connecting portion 211, and the second housing 23 is connected to the second connecting portion 212, wherein the first connecting portion 211 is connected to the second connecting portion 212 through the rotating shaft 213, and the rotating shaft 213 is used to realize the relative rotation between the first housing 22 and the second housing 23.

Specifically, based on the structural design of the flexible screen assembly, when the first casing 22 and the second casing 23 do not have a bending characteristic, the region of the flexible display screen 1 connected to the first casing 22 cannot be bent, and the partial region is the first non-bending region 11 as shown in fig. 10; similarly, the region of the flexible display panel 1 connected to the second casing 23 cannot be bent under the load of the second casing 23, and this partial region is the second non-bending region 12 shown in fig. 10; wherein the portion between the first non-bending region 11 and the second non-bending region 12 can be bent, and the portion is a bending region 13 as shown in fig. 10.

Referring to fig. 10, in the embodiment, in order to support the bending region 13 of the flexible display screen 1, the folding housing assembly 2 may further include a bending support 27, the bending support 27 is located on an end surface of the folding member 21 facing the flexible screen, and the first housing 22, the second housing 23, and the bending region 13 of the flexible screen are all connected to the bending support 27, and the bending support 27 supports the bending region 13, so that the bending region 13 of the flexible display screen 1 has good impact resistance in the bending process of the flexible display screen assembly, the probability of damage to the bending region 13 of the flexible display screen 1 is reduced, and the rigidity and the impact resistance of the bending region 13 are further improved.

Meanwhile, after the bending support member 27 is connected with the folding member 21, the bending support member 27 can respectively and fixedly connect the flexible display screen 1 on the upper surface thereof with the folding member 21 on the lower surface thereof, so that the bending area 13 of the flexible display screen 1 can be firmly connected to the folding housing assembly 2, thereby better avoiding the phenomena of degumming and arching of the flexible display screen 1 in the bending process.

Further, while preventing the flexible display screen 1 from degumming and arching during the bending process, the structural strength of the flexible display screen 1 can be ensured, as shown in fig. 11, in this embodiment, the folding housing assembly 2 further includes a first protection member 24 and a second protection member 25, the first protection member 24 is connected to the outer edge of the first housing 22, and the second protection member 25 is connected to the outer edge of the second housing 23, wherein both the first protection member 24 and the second protection member 25 are higher than or equal to the upper surface of the flexible display screen 1, and by using the first protection member 24 and the second protection member 25, when the flexible screen assembly falls or collides, the first protection member 24 and the second protection member 25 can contact with the collision point before the flexible display screen 1, so that the protection of the flexible display screen 1 is enhanced, and the structural strength of the flexible screen assembly is further improved.

The first protection member 24 may be connected to the edge of the first housing 22 by bonding, clamping, etc., and the second protection member 25 may also be connected to the edge of the second housing 23 by bonding, clamping, etc.; alternatively, the first protector 24 is integrally formed with the first housing 22, and the second protector 25 is integrally formed with the second housing 23.

As shown in fig. 8 and 9, further, to better protect the flexible display screen 1, the flexible screen assembly may further include a cover plate 6 attached to an upper end surface of the flexible display screen 1. The cover plate 6 may be made of a transparent substrate, such as thin glass, resin, and other materials with flexibility and rigidity. When the first casing 22, the second casing 23 and the flexible display screen 1 are fixedly connected, the cover plate 6 can be respectively bonded with the first casing 22 and the second casing 23, specifically, the edge of the cover plate 6 can be bonded with the side walls of the first casing 22 and the second casing 23, and the flexible display screen 1 is located between the two casings and the cover plate 6 so as to protect the flexible display screen 1 through the casings and the cover plate 6.

This embodiment provides a terminal comprising the flexible screen assembly of any of the above embodiments. Wherein, this terminal can be smart mobile phone, panel computer, wearing equipment etc..

In this embodiment, a terminal includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection, and/or via a Wireless interface to a cellular Network, a Wireless Local Area Network (WLAN), a Digital television Network of a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter, and/or another terminal.

Among them, a terminal provided to pass through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a personal communication system terminal that can combine a cellular radiotelephone with data processing, facsimile and data communication capabilities; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flexible screen assembly, comprising:

a flexible display screen;

the sliding piece is in sliding fit with the folding shell component, and the sliding direction of the sliding piece is perpendicular to the axis of the folding piece;

the folding case assembly further comprises:

a first housing;

the first shell is connected with the second shell through the folding piece;

the first shell and the second shell are bonded with the flexible display screen through the adhesive layers;

a first slide way is formed between every two adjacent adhesive layers;

2. The flexible screen assembly of claim 1, wherein a plurality of second runners are disposed on each of the first housing and the second housing;

3. The flexible screen assembly of claim 2, wherein there is a predetermined spacing between the first sliding portion and the first slide and between the second sliding portion and the second slide, respectively.

4. The flexible screen assembly of claim 1, wherein the folding housing assembly further comprises a bend support;

5. The flexible screen assembly of claim 1, wherein the folding member comprises:

the first shell is connected with the first connecting part;

a second connecting portion to which the second housing is connected;

6. The flexible screen assembly of claim 1, wherein the folding housing assembly further comprises:

the first protection piece is connected to the outer edge of the first shell;

a second protector attached to an outer edge of the second housing;

the first protection piece and the second protection piece are both higher than or equal to the upper surface of the flexible display screen.

7. A terminal, characterized in that it comprises a flexible screen assembly according to any one of claims 1 to 6.