CN112233558A

CN112233558A - Display device

Info

Publication number: CN112233558A
Application number: CN202011181724.2A
Authority: CN
Inventors: 李锡伟; 陈永亮; 尹斌; 汤小强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-01-15

Abstract

An embodiment of the present application provides a display device, which includes: a first moving body; a second moving body, the second moving assembly and the first moving assembly being movable in directions to approach or separate from each other; one end of the flexible screen assembly is arranged on the first moving body, and the other end of the flexible screen assembly is arranged on the second moving body; and a protective film disposed on an inner surface of the first moving body, the protective film having a hardness less than that of the inner surface of the first moving body, the protective film being for spacing apart at least a portion of the flexible screen assembly located within the first moving body from the first moving body. The embodiment of the application can protect the flexible screen assembly.

Description

Display device

Technical Field

The application relates to the technical field of display, in particular to a display device.

Background

With the development of electronic technology, the degree of intelligence of display devices such as smart phones is increasing. The display device can display a picture through a display screen thereof.

Among them, the flexible display screen is receiving attention because it has a characteristic of being foldable and bendable, and the overall size of the display device can be reduced by folding or bending the flexible display screen. However, the flexible display screen is easily contacted with the outer shell structure in the moving process, and the flexible display screen is easily scratched due to the contact with the shell structure after long-time movement.

Disclosure of Invention

The embodiment of the application provides a display device, which can protect a flexible screen assembly.

An embodiment of the present application provides a display device, including:

a first moving body;

a second moving body, the second moving assembly and the first moving assembly being movable in directions to approach or separate from each other;

one end of the flexible screen assembly is arranged on the first moving body, and the other end of the flexible screen assembly is arranged on the second moving body; and

a protective film disposed on an inner surface of the first moving body, the protective film having a hardness less than that of the inner surface of the first moving body, the protective film being for spacing apart at least a portion of the flexible screen assembly located within the first moving body from the first moving body.

An embodiment of the present application provides a display device, including:

the first moving body comprises a bottom shell and an end cover, wherein one end of the end cover is fixedly connected with one end of the bottom shell, and the end cover is positioned at one end part of the display device;

the dustproof film is arranged on the inner surface of the end cover, when the flexible screen assembly moves along with the first moving body and the second moving body in the mutually approaching direction, one part of the dustproof film is attached to the surface of the flexible screen assembly, and therefore outside dust is prevented from entering the interior of the display device.

The protection film of the embodiment of the application can prevent the direct surface contact with the flexible screen subassembly of the internal surface of first motion with the interval of flexible screen subassembly and first motion, and then prevent that the internal surface of first motion and the surface of flexible screen subassembly from because of long-time contact, friction fish tail flexible screen subassembly's surface. Therefore, the flexible screen assembly is protected.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic view of a first structure of a display device according to an embodiment of the present disclosure.

Fig. 2 is a second structural schematic diagram of a display device according to an embodiment of the present application.

FIG. 3 is a first cross-sectional view of the display device shown in FIG. 1 taken along the line P1-P1.

Fig. 4 is an enlarged view of a portion a shown in fig. 3.

FIG. 5 is a second cross-sectional view of the display device of FIG. 1 taken along the line P1-P1.

Fig. 6 is an enlarged view of a portion B shown in fig. 5.

Fig. 7 is a partially enlarged view of a dust-proof film in the display device shown in fig. 6.

FIG. 8 is a third cross-sectional view of the display device of FIG. 1 taken along the line P1-P1.

Fig. 9 is an enlarged view of the portion C shown in fig. 8.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Referring to fig. 1 and fig. 2, fig. 1 is a first structural schematic diagram of a display device according to an embodiment of the present disclosure, and fig. 2 is a second structural schematic diagram of the display device according to the embodiment of the present disclosure. The display device 20 may include a first moving body 100, a second moving body 200, and a flexible screen assembly 300. The first and second moving

bodies

100 and 200 are slidably connected such that the first and second moving

bodies

100 and 200 are relatively moved in directions approaching or departing from each other, whereby switching between the expanded state and the collapsed state can be achieved. In this regard, the closed state may refer to fig. 1, that is, a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction to approach each other to be finally formed. In this case, the unfolded state may refer to fig. 2, which is a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction away from each other.

It should be noted that the unfolded state of the first moving body 100 and the second moving body 200 may be various, such as that the maximum moving distance of the first moving body 100 and the second moving body 200 in the direction away from each other is H, and the first moving body 100 and the second moving body 200 may move away from each other in the folded state, so as to achieve the unfolded state in which the distance is different by the same distance as one quarter H, one half H, and three quarters H. The state of the distance gradually becoming farther may be defined as a first developed state, a second developed state, a third developed state, and the like in this order.

It should be noted that, when the first moving body 100 and the second moving body 200 are in the first deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the first deployed state is a quarter H, the first moving body 100 and the second moving body 200 can still perform the distancing movement with respect to each other to reach the second deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the second deployed state is a half H.

It is to be understood that the one or more development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application are merely illustrative and do not constitute a limitation on the development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application.

One end of the flexible screen assembly 300 may be fixedly connected to the first moving body 100, and the other end of the flexible screen assembly 300 may be fixedly connected to the second moving body 200. The first and second moving

bodies

100 and 200 may support the flexible screen assembly 300. The first moving body 100 and the second moving body 200 may drive the flexible screen assembly 300 to move together or drive the flexible screen assembly 300 to move during the mutual movement, so that the length of the flexible screen assembly 300 may be adjusted, and the size of the display area of the display device may be changed.

When the first and second moving

bodies

100 and 200 are relatively moved in a direction to approach each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to be received inside the display device 20, such as inside the first moving body 100 of the display device 20. When the first and second moving

bodies

100 and 200 are relatively moved in a direction away from each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to protrude from the inside of the display device 20.

It is understood that when the first and second moving

bodies

100 and 200 are in the collapsed state, a portion of the display area of the flexible screen assembly 300 located on the outer surface of the display device 20 may display a picture, and another portion of the display area of the flexible screen assembly 300 located on the inner portion of the display device 20 may not display a picture. When the first moving body 100 and the second moving body 200 are in the unfolded state, the display areas of the flexible screen assembly 300 are located on the outer surface of the display device 20, and may together display a picture.

It should be noted that the flexible screen assembly is susceptible to coming into contact with the inner surface of the housing structure during movement of the flexible screen assembly. The flexible screen assembly is worn due to contact with the inner surface of the first moving body in the long-term movement process, and the outer surface of the flexible screen assembly is scratched. For example, the flexible screen assembly can form slight scratches and scratches after being stretched for about 500 times, the flexible screen assembly can form more serious scratches and scratches after being stretched for about 2500 times, and the flexible screen assembly can form more serious scratches and scratches after being stretched for about 1 ten thousand times, which even causes the problem that the displayed picture of the flexible screen assembly is unclear and seriously affects the user experience.

Based on this, the embodiment of the present application may limit the interval between the flexible screen assembly 300 and the inner surface of the first moving body 100, so as to maintain the non-contact state between the inner surface of the first moving body 100 and the flexible screen assembly 300, thereby reducing the friction of the flexible screen assembly 300, and reducing the possibility of scraping and scratching the flexible screen assembly 300 during the movement process. Thereby providing some protection to the flexible screen assembly 300.

Referring to fig. 3 and 4, fig. 3 is a first cross-sectional view of the display device shown in fig. 1 taken along a direction P1-P1, and fig. 4 is an enlarged view of a portion a shown in fig. 3. In some embodiments, the display device 20 may further include a protective film such as the protective film 600, and the protective film 600 may be disposed on an inner surface of the first moving body 100. The protective film 600 may space at least a portion of the flexible screen assembly 300 located inside the first moving body 100 from the first moving body 100. So that at least a portion of the flexible screen assembly 300 located inside the first moving body 100 is not in direct contact with the inner surface of the first moving body 100 but is blocked by the protective film 600.

The hardness that this application embodiment can set for protection film 600 is less than the hardness of the internal surface of first moving body 100 to flexible screen assembly 300 of this application embodiment is at the motion in-process, and at least a part can contact with protection film 600, and flexible screen assembly 300 is compared with the contact of protection film 600 and is reduced the frictional force with the internal surface direct contact of first moving body 100 in the motion, and then reduces the possibility of flexible screen assembly 300 surface scratch and mar.

It should be noted that some housing configurations have a relatively high durometer, such as some housings having a shore hardness greater than or equal to 85 HD. If the flexible screen assembly 300 contacts a shell structure with shore hardness greater than or equal to 85HD during movement, the flexible screen assembly 300 is subjected to large friction, and is easily scratched and scratched. The shore hardness of the protective film 600 may be limited to below 85HD according to the embodiment of the present application, such as the shore hardness of the protective film 600 is 65HD, 60HD, 58HD, and the like. Compared with a shell structure with Shore hardness of greater than or equal to 85HD, the hardness of the protective film 600 provided by the embodiment of the application is greatly reduced.

To further protect the flexible screen assembly 300 from frictional forces encountered during movement. The embodiment of the present application may further define that the roughness of the protective film 600 is less than the roughness of the inner surface of the first moving body 100. That is, the surface of the protective film 600 may be smoother than the surface of the first moving body 100, and the friction acting force on the flexible screen assembly 300 during the movement process may be further reduced.

Experiments prove that the flexible screen assembly 300 does not scratch or scrape for about 2500 times of stretching, and the performance of the flexible screen assembly 300 cannot be affected. According to the flexible screen assembly 300, obvious scraping and scratching do not occur after the flexible screen assembly 300 is stretched for about 1.1 ten thousand times, and 1-2 scratches are formed after the flexible screen assembly 300 is stretched for about 1.3 ten thousand times. Compare among the relevant art flexible screen subassembly direct and shell structure contact and will form many mar at the tensile 2500 times of flexible screen subassembly, flexible screen subassembly 300 of this application embodiment just can appear 1-2 mar about tensile 1.3 ten thousand times. Extending the useful life of the flexible screen assembly 300 by several times.

The protective film 600 may be applied to a part of the inner surface of the first moving body 100, or may be applied to the entire inner surface of the first moving body 100.

The first moving body 100 may include a bottom case 110 and an end cap 120, and one end of the end cap 120 and one end of the bottom case 110 are fixedly connected, such as integrally formed, and may be formed by injection molding or machining. Wherein the end cap 120 may be located at an end of the display device 20. Wherein the bottom chassis 110 may be located at the bottom of the display device 20. The protective film 600 may be disposed on the inner surface of the bottom cover 110 instead of the inner surface of the end cap 120 in the embodiments of the present application, the protective film 600 may be disposed on the inner surface of the end cap 120 instead of the inner surface of the bottom cover 110 in the embodiments of the present application, and the protective film 600 may be disposed on the inner surfaces of the end cap 120 and the bottom cover 110 in the embodiments of the present application.

It should be noted that when the protective film 600 is laid on the inner surface of the bottom cover 110 but not on the inner surface of the end cap 120, the end cap 600 and the flexible screen assembly 300 have the first gap 130 therebetween.

The protective film 600 may be made of a PET material, and the thickness of the protective film 600 may be equal to or less than 0.25 mm, such as the thickness of the protective film 600 is slightly less than 0.25 mm, such as 0.23 mm, 0.24 mm, and the like.

Here, the display device 20 may further include a rotation shaft 500, and the rotation shaft 500 may be disposed at one end of the first moving body 100, such as at an inner side of the end cap 120. The shaft 500 is movable within the first moving body 100. A portion of the flexible screen assembly 300 may be attached to an outer surface of the rotating shaft 500 and may move along with the rotation of the rotating shaft 500. The movement of the first and second moving

bodies

100 and 200 according to the embodiment of the present application may be synchronized with the movement of the rotation shaft 500 to achieve the synchronous driving of the flexible screen assembly 300.

It should be noted that the first moving body 100 needs to be provided with a stretching space or a slit structure in order to adapt to the movement of the flexible screen assembly 300. So that when the flexible screen assembly 300 moves from the outside toward the inside of the first moving body 100, foreign objects such as dust from the outside are easily carried into the inside of the first moving body 100. In consideration of the space problem of the display device 20, the flexible screen assembly 300 and the first moving body 100 are not excessively spaced from each other, which not only easily causes external dust to enter the inside of the first moving body 100, but also easily scratches the flexible screen assembly 300 due to large dust particles or dust accumulation.

On the basis of this, in some other embodiments, the display device 20 may further dispose a dustproof film at a position where the first moving body 100 defines the stretch of the flexible screen assembly 300, so as to prevent external dust from entering the inside of the display device 20 such as the first moving body 100.

Referring to fig. 5 and 6, fig. 5 is a second cross-sectional view of the display device shown in fig. 1 taken along the direction P1-P1, and fig. 6 is an enlarged view of the portion B shown in fig. 5. In other embodiments of the present application, the display device 20 may further include a dust-proof film such as the dust-proof film 700, and the dust-proof film 700 is disposed on the inner surface of the end cap 120. When the flexible screen assembly 300 moves following the movement of the first and second moving

bodies

100 and 200 in the direction of approaching each other, a portion of the dustproof film 700 may be attached to the surface of the flexible screen assembly 300 to prevent external dust from entering the inside of the first moving body 100 of the display device 20. Therefore, the flexible screen assembly 300 can not only play a dustproof role, but also prevent the flexible screen assembly 300 from being damaged by particles such as dust, and can further play a role in protecting the flexible screen assembly 300.

It should be further noted that the application of the dust-proof film 700 on the inner surface of the end cap 120 in the embodiment can clean the outer surface of the flexible screen assembly 300, and prevent particles such as external dust, especially larger particles, from entering the interior of the first moving body 100. The protective film 600 is disposed on the inner surface of the bottom case 110 according to the embodiment of the present application, so that it is ensured that the flexible screen assembly 300 is not scratched by the particles such as external dust inside the first moving body 100 and the dust generated by the friction between the inner surface of the first moving body 100 and the flexible screen assembly 300. The life of flexible screen assembly 300 may be further increased. Further experiments verify that the embodiment of the present application only has the possibility of forming a fine grinding mark when the flexible screen assembly 300 is stretched by about 1.3, and no obvious scratch mark is generated. The life of flexible screen assembly 300 may be even further enhanced.

Referring to fig. 7, fig. 7 is a partially enlarged view of a dust-proof film in the display device shown in fig. 6. The dustproof film 700 can be made of a soft material, such as the dustproof film 700 can include a plurality of piles 710, a substrate layer 720 and a glue layer 730, wherein the piles 710 are disposed on one side of the substrate layer 720, the glue layer 730 is bonded on the other side of the substrate layer 720, and the glue layer 730 is further bonded on the inner surface of the end cap 120. The dustproof film 700 may be made of flannelette.

Referring to fig. 8 and 9, fig. 8 is a third cross-sectional view of the display device shown in fig. 1 taken along the direction P1-P1, and fig. 9 is an enlarged view of the portion C shown in fig. 8. Compared to the display device structure shown in fig. 5 and 6, the display device structure shown in fig. 8 and 9 further includes a dustproof film 700 without providing the protective film 600 defined by the display device structure shown in fig. 5 and 6.

As shown in fig. 8 and 9, the dustproof film 700 is disposed on the inner surface of the end cap 120, and the inner surface of the bottom chassis 110 and the flexible screen assembly 300 are spaced apart from each other, such as having the second gap 140. Wherein the second gap 140 may be greater than or equal to 0.25 millimeters. The dust-proof film 700 can refer to the above contents, and is not described herein again. Therefore, the embodiment of the present application can prevent particles such as external dust from entering and entering the first moving body 100 along with the flexible screen assembly 300, and protect the flexible screen assembly 300.

With continued reference to fig. 1 and 2, the display device 20 may further include a connection structure 400 for connecting a plug of a charging plug, an earphone plug, or other external devices.

It should be noted that the display device 20 in each of the above embodiments may further include other devices, such as a battery, a camera, and the like, and details are not repeated here.

The display device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display device, comprising:

a first moving body;

2. The display device according to claim 1, wherein the protective film has a shore hardness of less than 85 HD.

3. The display device according to claim 2, wherein the protective film has a shore hardness of less than or equal to 60 HD.

4. The display device according to claim 2, wherein a thickness of the protective film is less than or equal to 0.25 mm.

5. The display device according to any one of claims 1 to 4, wherein the first moving body includes a bottom case and an end cap, one end of the end cap is fixedly connected to one end of the bottom case, the end cap is located at one end of the display device, the protective film is disposed on an inner surface of the bottom case, and the end cap is spaced from the flexible screen assembly.

6. The display device according to claim 5, wherein an inner surface of the end cap is provided with a dustproof film, and when the flexible screen assembly moves in a direction in which the first moving body and the second moving body approach each other, a portion of the dustproof film is attached to a surface of the flexible screen assembly to prevent external dust from entering an inside of the display device.

7. The display device according to claim 6, wherein the dust-proof film comprises a base material and a plurality of piles provided on the base material, and the base material is fixed to an inner surface of the end cap.

8. The display device according to claim 5, wherein the protective film is further provided to an inner surface of the end cap.

9. The display device according to any one of claims 1 to 4, wherein a roughness of the protective film is smaller than a roughness of an inner surface of the first moving body.

10. A display device, comprising:

11. The display device according to claim 10, wherein the dust-proof film comprises a base material and a plurality of piles provided on the base material, and the base material is fixed to an inner surface of the end cap.