Display device and electronic equipment

CN118609477BActive Publication Date: 2026-09-25HEFEI VISIONOX TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410873375.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2026-09-25
Estimated Expiration
2044-06-28

AI Technical Summary

Technical Problem

[0003]但是,当前显示装置的性能有待提升

Benefits of technology

[0026]与现有技术相比,本申请提供的显示装置,通过在支撑背板与转轴之间设置磁性相同的第一磁性部和第二磁性部,使支撑背板与转轴之间相互排斥,可避免支撑背板与转轴的表面接触,这样在滑移测试中,转轴与支撑背板之间无摩擦,而且屏体绕转轴移动时阻力小、速度快,无需改变支撑背板的pattern形态,就能避免因支撑背板与转轴直接接触而在屏体上产生模印的问题,提升了显示装置的显示性能。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118609477B_ABST
    Figure CN118609477B_ABST
Patent Text Reader

Abstract

The application provides a display device and an electronic equipment. The display device comprises a screen body, a supporting back plate and a rotating shaft. The supporting back plate is arranged on one side of the screen body close to the rotating shaft. The supporting back plate comprises a first magnetic part. The rotating shaft comprises a second magnetic part. At least part of the screen body and the supporting back plate are arranged around the rotating shaft. The first magnetic part and the second magnetic part have the same magnetism. Through the above arrangement, the supporting back plate and the rotating shaft repel each other, avoiding the surface contact between the supporting back plate and the rotating shaft. In the sliding test, there is no friction between the rotating shaft and the supporting back plate. When the screen body moves around the rotating shaft, the resistance is small and the speed is fast. The pattern form of the supporting back plate does not need to be changed, avoiding the problem that the mold is printed on the screen body due to the direct contact between the supporting back plate and the rotating shaft, and improving the display performance of the display device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display device and electronic device. Background Technology

[0002] Organic light-emitting diode (OLED) and flat panel display devices based on light-emitting diode (LED) technologies are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

[0003] However, the performance of current display devices needs to be improved. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display device and electronic device that can avoid mold marks and improve display performance.

[0005] For the purposes described above, this application provides a display device, which includes: a screen;

[0006] A support back plate is disposed on one side of the screen body, and the support back plate includes a first magnetic part;

[0007] A pivot is disposed on the side of the support back plate away from the screen body, and the pivot includes a second magnetic part;

[0008] The screen body and the supporting back plate are wound around the rotating shaft, and the first magnetic part and the second magnetic part have the same magnetism.

[0009] In one embodiment, the display device further includes:

[0010] The third magnetic part is disposed on the side of the screen away from the rotating shaft, and the magnetic properties of the third magnetic part are opposite to those of the second magnetic part.

[0011] In one embodiment, the display device further includes:

[0012] The outer casing is disposed on the side of the screen body away from the supporting back plate and covers at least a portion of the screen body, and the third magnetic part is disposed in the outer casing.

[0013] In one embodiment, the display device further includes:

[0014] A buffer layer is located between the outer shell and the screen.

[0015] Preferably, the buffer layer comprises foam.

[0016] In one embodiment, the screen body includes a bending region surrounding the pivot, and the outer shell covers the bending region of the screen body.

[0017] In one embodiment, the support back plate includes a steel sheet, the steel sheet including the first magnetic portion;

[0018] Preferably, the supporting back plate further includes a flexible connector, and the steel sheet is connected to the flexible connector;

[0019] Preferably, the support back plate includes a plurality of steel sheets and a plurality of flexible connectors, with each pair of steel sheets connected by a flexible connector.

[0020] In one embodiment, the first magnetic part, the second magnetic part, and the third magnetic part are all capable of generating magnetism after being energized;

[0021] Preferably, when energized, the first magnetic part and the second magnetic part repel each other;

[0022] Preferably, when energized, the third magnetic part and the second magnetic part attract each other.

[0023] In one embodiment, the screen body includes a first end and a second end, and a portion of the screen body surrounding the rotating shaft is located between the first end and the second end. The screen body moves from the first end to the second end to perform a sliding test.

[0024] In one embodiment, the screen body includes a support layer, a substrate, a polarizing layer, and a cover plate that are sequentially stacked along a direction away from the support back plate.

[0025] Based on the same inventive concept, this application also discloses an electronic device that includes the aforementioned display device.

[0026] Compared with the prior art, the display device provided in this application, by providing a first magnetic part and a second magnetic part with the same magnetism between the support back plate and the rotating shaft, makes the support back plate and the rotating shaft repel each other, thus avoiding surface contact between the support back plate and the rotating shaft. In this way, there is no friction between the rotating shaft and the support back plate during the sliding test, and the resistance is small and the speed is fast when the screen moves around the rotating shaft. Without changing the pattern shape of the support back plate, the problem of mold marks on the screen caused by direct contact between the support back plate and the rotating shaft can be avoided, thus improving the display performance of the display device. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a related display device;

[0029] Figure 2 This is a schematic diagram of a supporting backplate in a related display device;

[0030] Figure 3 This is a cross-sectional schematic diagram of a display device provided in some embodiments of this application;

[0031] Figure 4 This is a cross-sectional schematic diagram of a display device provided in other embodiments of this application;

[0032] Figure 5 This is a cross-sectional schematic diagram of a display device provided in other embodiments of this application;

[0033] Figure 6 A cross-sectional schematic diagram of a support backplate provided for other embodiments of this application;

[0034] Figure 7 This is a schematic diagram of the layer structure of the screen provided in some other embodiments of this application.

[0035] Marker explanation:

[0036] 10. Screen body; 11. First end; 12. Second end; 101. Support layer; 102. Substrate; 103. Polarizing layer; 104. Cover plate; 20. Support back plate; 201. Steel sheet; 202. Flexible connector; 30. Rotating shaft; 40. Outer shell; 50. Buffer layer. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0038] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] Flexible display panels have advantages such as small size, portability, and the ability to be bent and folded, making them the mainstream development trend in display panels. Furthermore, with advancements in flexible display technology, sliding flexible display panels will become an important direction for the future development of display devices. For example, flexible display panels are widely used in automotive displays, mobile phones, laptops, tablets, and other display devices due to their bendable, rollable, and sliding characteristics.

[0040] Taking a sliding phone as an example, a sliding phone includes a flexible display panel, which includes a screen body. During the sliding process, the bending area of ​​the screen body will continuously change, and about 50% of the screen area will participate in the sliding movement. When it is folded up, the screen is similar in size to a commonly used candybar phone screen; while when it is slid open, the screen is similar to a large-sized folding phone.

[0041] Reference Figure 1 , Figure 2 As shown, in related technologies, the display device includes a screen body 10, a supporting back plate 20, and a pivot 30. The supporting back plate 20 is disposed on the side of the screen body 10 near the pivot 30, and the supporting back plate 20 and the screen body 10 are arranged around the pivot 30. The screen body 10 is a flexible screen structure, and before leaving the factory, it needs to undergo repeated folding or sliding to verify whether the screen body 10 can meet the user's requirements. The sliding test mainly verifies the reliability of the sliding of the screen body 10 under specific test conditions. In the sliding test, the screen body 10 and the supporting back plate 20 move together around the pivot 30.

[0042] Reference Figure 2As shown, the support backplate 20 includes patterned steel sheets with elongated patterned designs. The pattern typically refers to a specific graphic or image pattern of pixel arrangement or display. Through long-term research, the inventors discovered that during the sliding test, the portion of the support backplate 20 that wraps around the pivot 30 directly contacts the surface of the pivot 30, generating friction. After multiple sliding tests, imprints corresponding to the pattern appear on the display area of ​​the screen 10. Especially after removing the support backplate 20, multiple elongated imprints appear on the screen 10, and these imprints are quite noticeable, reaching the polarizer (POL) layer of the screen 10 and affecting its display effect.

[0043] Based on this, this application provides a display device to solve the above-mentioned technical problems, as detailed in the following embodiments.

[0044] Reference Figure 3 As shown, some embodiments of the present application provide a display device including a screen body 10, a support back plate 20 and a rotating shaft 30. The support back plate 20 is disposed on one side of the screen body 10, and the rotating shaft 30 is disposed on the side of the support back plate 20 away from the screen body 10. The support back plate 20 includes a first magnetic part, and the rotating shaft 30 includes a second magnetic part. The screen body 10 and the support back plate 20 are wound around the rotating shaft 30, and the first magnetic part and the second magnetic part have the same magnetism.

[0045] The display device provided in this application provides a first magnetic part and a second magnetic part with the same magnetism between the support back plate 20 and the rotating shaft 30. This generates a force between the support back plate 20 and the rotating shaft 30 that causes them to move away from each other, and the support back plate 20 is detached from the surface of the rotating shaft 30. In this way, during the sliding test, the rotating shaft 30 and the support back plate 20 do not contact each other and there is no friction. Moreover, the resistance to the movement of the screen body 10 around the rotating shaft 30 is small and the speed is fast. Therefore, it is not necessary to change the pattern shape of the support back plate 20, thus avoiding the problem of mold marks on the screen body due to direct contact between the support back plate 20 and the rotating shaft 30.

[0046] Specifically, the screen body 10 is a flexible screen body, comprising a light-emitting surface and a backlight surface arranged opposite to each other. The side containing the light-emitting surface of the screen body 10 is defined as the front side, and the side containing the backlight surface of the screen body 10 is defined as the back side. A supporting back plate 20 is attached to the back side of the screen body 10 by optical adhesive. The middle portion of the screen body 10 and the supporting back plate 20 located between the two ends is wound around a rotating shaft 30. Since the first magnetic part in the supporting back plate 20 and the second magnetic part in the rotating shaft 30 have the same magnetic poles, a repulsive force is generated between the rotating shaft 30 and the portion of the supporting back plate 20 wound around it. The direction of this repulsive force is perpendicular to the axial direction of the rotating shaft 30, resulting in a gap between the back side of the curved portion of the supporting back plate 20 and the surface of the rotating shaft 30. Providing a supporting back plate 20 on the back side of the screen body 10 can provide a certain degree of support for the screen body 10 and prevent damage to the screen body 10 due to excessive curling stress. In the sliding test, the screen 10 and the supporting back plate 20 move synchronously around the pivot 30. During the movement, the supporting back plate 20 and the pivot 30 do not come into contact.

[0047] In some embodiments, the display device further includes a third magnetic part disposed on the side of the screen 10 away from the pivot axis, and the magnetic properties of the third magnetic part are opposite to those of the second magnetic part.

[0048] The screen 10 is located between the rotating shaft 30 and the third magnetic part. The attraction between the third magnetic part and the second magnetic part makes the third magnetic part approach the screen 10, thereby providing better protection for the screen 10.

[0049] For example, the magnetic poles on opposite sides of the first and second magnetic parts are both N poles, and the magnetic pole on the side of the third magnetic part closest to the first magnetic part is an S pole. Of course, the magnetism of each magnetic part can also be configured such that the magnetic poles on opposite sides of the first and second magnetic parts are S poles, and the magnetic pole on the side of the third magnetic part closest to the first magnetic part is an N pole. Wherein, at the location of the third magnetic part, the magnetic field strength of the second magnetic part in the rotating shaft 30 is greater than the magnetic field strength of the first magnetic part in the supporting back plate 20. The direction of attraction between the second and third magnetic parts is perpendicular to the axial direction of the rotating shaft 30; that is, the rotating shaft 30 attracts the third magnetic part in a direction perpendicular to the axial direction through the second magnetic part.

[0050] Reference Figure 4 As shown, in some embodiments, the display device further includes a housing 40 disposed on the side of the screen 10 away from the support back plate 20, the housing 40 covering at least a portion of the screen 10, and a third magnetic part disposed in the housing 40.

[0051] The shell 40 is attracted to the screen 10 by the attraction between the third magnetic part in the shell 40 and the second magnetic part in the rotating shaft 30. The shell 40 provides protection for the screen 10 located between the shell 40 and the rotating shaft 30. The rotating shaft 30 attracts the shell 40 by magnetic force, which achieves a better waterproof and dustproof effect.

[0052] In some other embodiments, the third magnetic part can also be a magnetic structure independent of the outer shell 40. The third magnetic part can be fixed to the inner or outer surface of the outer shell 40. Through the attraction between the third magnetic part and the second magnetic part, the outer shell 40 can be attracted to the screen 10 to play a protective role.

[0053] Reference Figure 5 As shown, in some embodiments, the display device further includes a buffer layer 50 located between the housing 40 and the screen 10. Preferably, the buffer layer 50 includes foam, the back of which can abut against the light-emitting surface of the screen 10.

[0054] The hinge 30 and the outer casing 40 of the whole machine are attracted by opposite forces, and the buffer layer 50 is sandwiched between the outer casing 40 and the screen 10, close to the light-emitting surface of the screen 10, which provides better protection for the screen 10. Specifically, the buffer layer is made of foam, which makes the buffer layer elastic and prevents the screen 10 from being scratched.

[0055] Reference Figure 4 , Figure 5 As shown, in some embodiments, the screen 10 includes a bending region disposed around the pivot 30, and the outer shell 40 covers the bending region of the screen 10. The bending region of the screen 10 refers to a dynamic bending area formed during the movement of the screen 10 around the pivot 30; that is, the specific position of the bending region on the screen 10 changes as the screen 10 moves. Exemplarily, the bending region is a screen area with a semi-arc cross-section concentrically disposed with the pivot 30.

[0056] The outer shell 40 protects the bending area of ​​the screen 10 from external impacts, scratches or pressure, and prevents damage to the screen 10 when bending or folding.

[0057] Reference Figure 6As shown, in some embodiments, the support backplate 20 includes a steel sheet 201, which includes a first magnetic portion. Exemplarily, the steel sheet 201 comprises a magnetically conductive material, enabling the support backplate 20 to generate magnetism while also possessing good structural strength. The steel sheet 201 has a certain degree of rigidity. By providing the support backplate 20 on the back side of the screen 10, it can provide good support for the screen 10, keeping the non-bending area of ​​the screen 10 flat. Simultaneously, the steel sheet 201 is treated to have a certain degree of flexibility, so that the flexible screen 10 maintains the deformation state of the bending area during bending or folding, allowing it to follow the changes in the screen and preventing breakage or deformation.

[0058] Preferably, the support back plate 20 further includes a flexible connector 202, and the steel sheet 201 is connected to the flexible connector 202.

[0059] Preferably, the support back plate 20 includes a plurality of steel sheets 201 and a plurality of flexible connectors 202. Each pair of steel sheets 201 are connected by a flexible connector 202. The plurality of steel sheets 201 are connected by the plurality of flexible connectors 202 to form a chain-like structure, that is, the plurality of steel sheets 201 in the support back plate 20 are arranged in a chain-like manner.

[0060] Alternatively, the multiple steel plates 201 in the support back plate 20 can also be arranged in a fishbone pattern.

[0061] For example, the thickness of the support backplate 20 is greater than or equal to 100 micrometers and less than or equal to 200 micrometers, such as 150 micrometers.

[0062] In some embodiments, the first magnetic part, the second magnetic part, and the third magnetic part can all generate magnetism when energized.

[0063] Preferably, when energized, the first magnetic part and the second magnetic part repel each other.

[0064] Preferably, when energized, the third magnetic part and the second magnetic part attract each other.

[0065] Specifically, the first magnetic part, the second magnetic part, and the third magnetic part all include electromagnetic materials, which generate magnetic force when energized and disappear when de-energized.

[0066] Specifically, during the sliding test of the screen 10, the steel sheet 201 in the support back plate 20, the rotating shaft 30, and the outer shell 40 are energized. The first magnetic part in the support back plate 20, the second magnetic part in the rotating shaft 30, and the third magnetic part in the outer shell 40 generate magnetism upon energization. Since the magnetic poles on opposite sides of the rotating shaft 30 and the support back plate 20 are the same, they repel each other, creating a gap between the support back plate 20 and the rotating shaft 30 to prevent friction. Simultaneously, the second magnetic part in the rotating shaft 30 has a stronger magnetic force, and the magnetic poles on the back side of the outer shell 40 are opposite to those on the surface of the rotating shaft 30. This causes the rotating shaft 30 to attract the third magnetic part in the outer shell 40 towards the light-emitting surface of the screen 10, providing better protection for the screen 10. After the sliding test, the power can be turned off to eliminate the magnetic force between the magnetic parts. Furthermore, the magnitude of the magnetic force can be controlled by adjusting the current flowing through the electromagnetic material, thereby adjusting the repulsive force of the second magnetic part on the first magnetic part and the attractive force of the third magnetic part on the first magnetic part to meet different needs in practical applications.

[0067] In other embodiments, the first magnetic part and the second magnetic part include permanent magnets having the same magnetism; the third magnetic part includes a ferromagnetic material that can be attracted by the first magnetic part and the second magnetic part.

[0068] In other embodiments, the first, second, and third magnetic parts all include permanent magnets, capable of generating magnetism regardless of whether they are energized. It is understood that, under any circumstances, the second magnetic part will repel the first magnetic part and attract the third magnetic part, but this does not affect the normal operation of the display device. Optionally, the materials of the first, second, and third magnetic parts can be neodymium iron boron magnets, ferrite magnets, AlNiCo magnets, etc. Furthermore, if each magnetic part is made of permanent magnets, it can be embedded and fixed in the support backplate 20, the rotating shaft 30, and the outer casing 40, respectively.

[0069] In other embodiments, the first magnetic part, the second magnetic part, and the third magnetic part can be magnetic coatings. These can be applied to the surfaces of the supporting back plate 20, the rotating shaft 30, and the outer casing 40 to form a full-surface magnetic structure, or a magnetic structure including multiple patterns. Using magnetic coatings for each magnetic part facilitates processing and improves flexibility, among other advantages.

[0070] Reference Figure 5As shown, in some embodiments, the screen 10 includes a first end 11 and a second end 12. The portion of the screen 10 surrounding the rotating shaft 30 is located between the first end 11 and the second end 12, that is, the bending area of ​​the screen 10 is located between the first end 11 and the second end 12. The screen 10 moves from the location of the first end 11 to the location of the second end 12 to perform a sliding test. Specifically, the screen 10 is wrapped around the outer periphery of the rotating shaft 30, with the first end 11 and the second end 12 distributed on both sides of the center line of the rotating shaft 30. The second end 12 is pulled by a drive mechanism, causing the first end 11 to move towards the second end 12, thereby causing the screen 10 to repeatedly bend and slide back and forth relative to the rotating shaft 30 to verify the reliability of the screen 10.

[0071] When the screen 10 is subjected to a sliding test, the bending area in the middle of the screen 10 is arranged around the outer periphery of the rotating shaft 30. During the test, the rotating shaft 30 itself does not move, but rotates with the screen 10 around its own axis. This can reduce the sliding friction resistance and facilitate the sliding of the screen 10 and the supporting back plate 20 relative to the rotating shaft 30.

[0072] When the display device is specifically a sliding display device, the sliding display device includes a main frame and a border. The border is configured to be away from or close to the main frame. The first end 11 or the second end 12 of the screen body 10 is connected to the main frame. The rotating shaft 30 is connected to the border in a manner that allows it to rotate around its own axis. By moving the border away from or close to the main frame, the rotating shaft 30 can be moved between a first position and a second position. When the rotating shaft 30 is in the first position, the screen body 10 is in a rolled-up state. When the rotating shaft 30 is in the second position, the screen body 10 is in an unfolded state. When the rotating shaft 30 moves, it causes the screen body 10 to switch between the rolled-up state and the unfolded state.

[0073] Reference Figure 7 As shown, in some embodiments, the screen 10 includes a support layer 101, a substrate 102, a polarizing layer 103, and a cover plate 104 stacked sequentially along a direction away from the support back plate 20. Specifically, the support layer 101 is disposed on the side of the support back plate 20 away from the pivot 30, the substrate 102 is disposed on the side of the support layer 101 away from the support back plate 20, the polarizing layer 103 is disposed on the side of the substrate 102 away from the support back plate 20, and the cover plate 104 is disposed on the side of the polarizing layer 103 away from the support back plate 20.

[0074] The support layer 101 can be a support film, also known as a BPF (Barrier Projection Film), used to provide support and protection for the other film layers of the screen 10. The polarizer layer 103 is also known as a POL (Polarizer) layer, mainly used to eliminate reflected light from the external environment and ensure display contrast. The cover plate 104 is also known as a CWF layer, which can be a transparent cover plate that provides protection and is a flexible cover plate. Of course, the structure of the screen 10 in the display device provided in this application embodiment is not limited to the above structure; certain film layer structures can be added or removed based on the above-mentioned layer structure.

[0075] Other embodiments of this application provide an electronic device that includes the display device described in the above embodiments. This electronic device can be a smart device with a display device, such as a mobile phone, VR device, computer, television, in-vehicle display, etc.

[0076] The electronic device provided in this application provides a display device that uses a first magnetic part and a second magnetic part that repel each other between the support back plate 20 and the rotating shaft 30. This creates a force between the support back plate 20 and the rotating shaft 30 that causes them to move away from each other, and the support back plate 20 is detached from the surface of the rotating shaft 30. In this way, during the sliding test, the rotating shaft 30 and the support back plate 20 do not contact each other and there is no friction. Moreover, the resistance to the movement of the screen 10 around the rotating shaft 30 is small and the speed is fast. Therefore, it is not necessary to change the pattern shape of the support back plate 20, thus avoiding the problem of mold marks on the screen due to direct contact between the support back plate 20 and the rotating shaft 30.

[0077] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0078] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0079] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A display device, characterized in that, include: Screen body; A support back plate is disposed on one side of the screen body, and the support back plate includes a first magnetic part; A pivot is disposed on the side of the support back plate away from the screen body. The pivot includes a second magnetic part. The screen body and the support back plate are wound around the pivot. The first magnetic part and the second magnetic part have the same magnetism. The first magnetic part and the second magnetic part are configured to cause mutual repulsion between the support back plate and the pivot during a sliding test. The screen body includes a first end and a second end. The portion of the screen body wound around the pivot is located between the first end and the second end. The screen body moves from the first end to the second end to perform a sliding test. The third magnetic part is disposed on the side of the screen away from the rotating axis. The magnetic properties of the third magnetic part are opposite to those of the second magnetic part, and the third magnetic part and the second magnetic part attract each other.

2. The display device according to claim 1, characterized in that, The display device further includes: The outer casing is disposed on the side of the screen body away from the supporting back plate and covers at least a portion of the screen body, and the third magnetic part is disposed in the outer casing.

3. The display device according to claim 2, characterized in that, The display device further includes: A buffer layer is located between the outer shell and the screen.

4. The display device according to claim 3, characterized in that, The buffer layer includes foam.

5. The display device according to claim 2, characterized in that, The screen body includes a bending area surrounding the pivot, and the outer shell covers the bending area.

6. The display device according to claim 1, characterized in that, The supporting back plate includes a steel sheet, and the steel sheet includes the first magnetic part.

7. The display device according to claim 6, characterized in that, The supporting back plate also includes a flexible connector, and the steel sheet is connected to the flexible connector.

8. The display device according to claim 7, characterized in that, The supporting back plate includes a plurality of steel sheets and a plurality of flexible connectors, with each pair of steel sheets connected by a flexible connector.

9. The display device according to claim 1, characterized in that, The first magnetic part, the second magnetic part, and the third magnetic part can all generate magnetism after being energized; in the energized state, the first magnetic part and the second magnetic part repel each other.

10. The display device according to claim 9, characterized in that, When energized, the third magnetic part and the second magnetic part attract each other.

11. The display device according to claim 1, characterized in that, The screen body includes a support layer, a substrate, a polarizing layer and a cover plate stacked sequentially along the direction away from the support back plate.

12. An electronic device, characterized in that, Includes the display device as described in any one of claims 1-11.

Citation Information

Patent Citations

  • Flexible display module and flexible display device

    CN114038327A

  • Flexible display module and flexible display device

    CN116312236A