Display device and vehicle

Abstract

The application provides a display device and a vehicle, the display device comprising: a flexible display screen comprising a fixed end and a free end; a support structure; a driving mechanism arranged on the back of the flexible display screen and connected with the free end, used for driving the free end to move away from or close to the support structure. The driving mechanism drives the free end to move, avoids the flexible display screen from being wrinkled or stretched to be damaged, prevents the material fatigue, crack or display abnormality of the flexible display panel, so that the stress distribution is more uniform, the local stress concentration is reduced, and the service life of the flexible display screen is prolonged.

Description

Technical Field

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

[0002] Currently, organic light-emitting diode (OLED) display panels and display panels using light-emitting diode (LED) devices are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, 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 in 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 a vehicle to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, one embodiment of this application provides a display device, comprising: a flexible display screen, including a fixed end and a free end; a support structure; disposed on the back of the flexible display screen; and a driving mechanism connected to the free end for driving the free end to move away from or towards the support structure.

[0006] In some embodiments, the display device further includes: a first fixing member connected to the free end; the driving mechanism connected to the free end via the first fixing member; and a second fixing member connected to the fixed end.

[0007] In some embodiments, the flexible display screen includes: a display panel, including opposing display surfaces and non-display surfaces; a cover plate disposed on one side of the display surface; and a first fastener connected to the cover plate.

[0008] In some embodiments, the cover plate includes a first region and a second region surrounding the first region; the orthographic projection of the display panel on the cover plate overlaps with the first region; and the first fastener is connected to the second region.

[0009] In some embodiments, the drive mechanism includes: a power source for providing power; a constraint member and a linkage structure, the linkage structure being connected to the free end and the power source; the constraint member being connected to the linkage structure and restricting the movement of the free end through the linkage structure.

[0010] In some embodiments, the constraint member is provided with a groove, and a sliding part is slidably connected in the groove; the linkage structure includes a first linkage structure and a second linkage structure, one end of the first linkage structure is connected to the free end, and the other end of the first linkage structure is connected to the sliding part; one end of the second linkage structure is connected to the power source, and the other end of the second linkage structure is connected to the sliding part / the free end / the first linkage structure.

[0011] In some embodiments, the display device further includes a slider and a third fixing member; the slider is rotatably fixed to the third fixing member and sleeved on the first connecting rod structure; the first connecting rod structure and the slider are movable relative to each other.

[0012] In some embodiments, the first linkage structure includes two first linkages spaced apart; one end of the first linkage is connected to the free end, and the other end of the first linkage is connected to the sliding part; the second linkage structure includes a second linkage and a third linkage; the second linkage connects the two first linkages; one end of the third linkage is connected to the second linkage, and the other end of the third linkage is connected to the power source.

[0013] In some embodiments, the first linkage structure includes at least one first linkage, one end of which is connected to the free end, and the other end of which is connected to the sliding part; the second linkage structure includes a fourth linkage, one end of which is connected to the free end, and the other end of which is connected to the power source.

[0014] In some embodiments, the first linkage structure includes at least one first linkage, a first end of which is connected to the free end, and a second end of which is connected to the sliding part; the second linkage structure includes a fifth linkage, a sixth linkage, and a seventh linkage; one end of the fifth linkage is connected to the free end, the other end of the fifth linkage is connected to one end of the sixth linkage, and the other end of the sixth linkage is connected to the seventh linkage; one end of the seventh linkage is connected to the fifth linkage, and the other end of the seventh linkage is connected to the power source.

[0015] In some embodiments, the first linkage structure includes at least one first linkage, one end of which is connected to the free end, and the other end of which is connected to the sliding part; the second linkage structure includes an eighth linkage, one end of which is connected to the sliding part, and the other end of which is connected to the power source.

[0016] In one embodiment, during the bending process of the flexible display screen, the flexible display screen includes an attachment portion that is attached to the support structure and a separation portion that is separated from the support structure; in the bent state, the flexible display screen is completely attached to the support structure.

[0017] In some embodiments, the display device further includes a telescopic rod; the power source includes a motor or a cylinder; the power source is connected to the telescopic rod; and the telescopic rod is connected to the second linkage structure.

[0018] In some embodiments, the second linkage structure is connected to the telescopic rod at a position close to / away from the power source.

[0019] In some embodiments, the slider includes a first limiting structure; the first link structure includes a second limiting structure; the first limiting structure and the second limiting structure are disposed opposite to each other; the first limiting structure and the second limiting structure cooperate with each other to limit the relative range of motion between the slider and the first link structure during the movement of the first link structure relative to the slider.

[0020] In some embodiments, the support structure includes a support surface near the flexible display screen, the support surface matching the bending shape of the flexible display screen in the bent state; the support surface is a circular arc surface or an elliptical arc surface.

[0021] In some embodiments, the axis of the power source is set at an angle relative to the mounting reference plane of the display device, and the angle ranges from 3 degrees to 75 degrees.

[0022] In some embodiments, the flexible display screen includes: a display panel, including opposing display surfaces and non-display surfaces; and a graphic support structure disposed on one side of the non-display surface, including a graphic cutout area.

[0023] In some embodiments, the first linkage structure includes a plurality of first linkages connected end to end.

[0024] One embodiment of this application provides a vehicle including a display device as described in any of the above.

[0025] One embodiment of this application provides a display device that, compared with the prior art, has the following advantages: by setting a support structure on the back of the flexible display screen, connecting the drive mechanism to the free end of the flexible display screen, and driving the free end to move, the flexible display screen is prevented from wrinkling or being damaged by stretching, thus preventing material fatigue, cracks, or display abnormalities in the flexible display panel, thereby making the stress distribution more uniform, reducing local stress concentration, and extending the life of the flexible display screen. Attached Figure Description

[0026] 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.

[0027] Figure 1 A schematic diagram of the structure of a display device provided for one embodiment of this application; Figure 2 A schematic diagram of the structure of a flexible display screen is provided for one embodiment of this application; Figure 3 A schematic diagram of the structure of a display device provided for one embodiment of this application; Figure 4 A schematic diagram of the structure of a display device provided for one embodiment of this application; Figure 5 A schematic diagram of the structure of a display device provided for one embodiment of this application; Figure 6 A schematic diagram of the structure of a display device provided for one embodiment of this application; Figure 7 This is a schematic diagram of the structure of a display device provided for one embodiment of this application.

[0028] Marker explanation: 100. Display device; 110. Flexible display screen; 101. Adhesive part; 102. Separation part; 111. Display panel; 112. Cover plate; 113. First area; 114. Second area; 120. Support structure; 130. Drive mechanism; 140. Power source; 142. Telescopic rod; 150. Constraint; 151. Slide groove; 152. Sliding part; 160. Linkage structure; 161. First link structure; 162. Second link structure; 163. First link; 164. Second link; 165. Third link; 166. Fourth link; 167. Fifth link; 168. Sixth link; 169. Seventh link; 170. Eighth link; 181. First fixing member; 182. Second fixing member; 191. Slider. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] With the rapid development of display technology, flexible displays, due to their bendable and thin characteristics, have been increasingly widely used in consumer electronics, automotive displays, and other fields. In scenarios such as smart cockpits, flexible displays can switch between a flat and a bent state according to usage needs. For example, they can be unfolded when information needs to be displayed, and bent and stored when no display is needed or to save space, thereby improving space utilization and user experience.

[0032] In existing dynamic bending display devices, a drive mechanism is typically required to move one end of the flexible display screen, thereby enabling the flexible display screen to switch between a flat and bent state. However, how to ensure that the flexible display screen is subjected to reasonable force and moves smoothly during the bending process, and avoid damage to the flexible display screen due to improper force direction or stress concentration, is a technical problem that urgently needs to be solved.

[0033] Please see Figure 1 To address the aforementioned problems, one embodiment of this application provides a display device 100, comprising: a flexible display screen 110, including a fixed end and a free end; a support structure 120; disposed on the back of the flexible display screen 110; and a drive mechanism 130 connected to the free end for driving the free end to move away from or towards the support structure 120.

[0034] In this embodiment, the display device 100 may include a flexible display screen 110, a support structure 120, and a driving mechanism 130. The support structure 120 is disposed on the back of the flexible display screen 110, and the driving mechanism 130 is connected to the free end of the flexible display screen 110.

[0035] The flexible display screen 110 can be a display unit with bendable and foldable characteristics, capable of moving and deforming under external force, and switching between different forms. The flexible display screen 110 may include a flexible substrate and a display pixel array disposed on the flexible substrate. For example, the display pixel array can be implemented using organic light-emitting diode (OLED) display technology or liquid crystal display (LCD) technology. Due to its bendable characteristics, the flexible display screen 110 is suitable for scenarios requiring shape changes. For example, this flexible display screen 110 can be used in an in-vehicle display device 100.

[0036] The flexible display screen 110 may include a fixed end and a free end. The fixed end is the end of the flexible display screen 110 that is relatively fixed and maintains a substantially unchanged position during bending. Specifically, the fixed end can be mounted on the housing or other supporting structure of the display device 100 using a fastener, providing a stable mounting base for the flexible display screen 110. The free end is the end of the flexible display screen 110 that can be driven to move and whose position changes during bending. The free end is connected to the driving mechanism 130, and its movement is achieved through the driving mechanism 130, thereby changing the overall shape of the flexible display screen 110. For example, when the flexible display screen 110 is designed to bend downwards, the upper end can serve as the fixed end and the lower end as the free end; when the flexible display screen 110 is designed to bend upwards, the lower end can serve as the fixed end and the upper end as the free end; when the flexible display screen 110 is designed to bend laterally, one side can serve as the fixed end and the other side as the free end.

[0037] The support structure 120 can be a component used to provide support during the bending process of the flexible display screen 110. It is disposed on the back side of the flexible display screen 110, i.e., the side of the flexible display screen 110 opposite to the display direction. The support structure 120 can have a specific shape and size to provide appropriate support when the flexible display screen 110 is bent. For example, the support structure 120 can be a component with a curved surface, providing a support surface that matches the bending shape of the flexible display screen 110 in its bent state. The support structure 120 can be made of various materials. Specifically, the material can be at least one of metal, plastic, or composite materials. The support structure 120 needs to have sufficient strength and stiffness to withstand the forces that may be generated during the bending process of the flexible display screen 110.

[0038] The drive mechanism 130 is connected to the free end and can be used to drive the free end to move away from or towards the support structure 120, allowing the flexible display screen 110 to switch between a flat state and a bent state. The drive mechanism 130 can be a collection of components that provide power and control movement. It is connected to the free end of the flexible display screen 110 and changes the shape of the flexible display screen 110 by driving the movement of the free end. Specifically, the drive mechanism 130 may include a power source 140, a linkage structure 160, and a constraint member 150, etc., to achieve precise control of the movement of the free end.

[0039] The flat state refers to the flexible display screen 110 being in a basically flat state, in which the display surface of the flexible display screen 110 is unfolded and can be viewed normally by the user. The bent state refers to the flexible display screen 110 being bent to an allowable degree of bending, in which the flexible display screen 110 can achieve a predetermined bending angle or have the maximum contact area with the support structure 120. By driving the free end away from the support structure 120 through the driving mechanism 130, the flexible display screen 110 can be gradually bent from the flat state; by driving the free end towards the support structure 120, the flexible display screen 110 can gradually return from the bent state to the flat state.

[0040] In this embodiment, by providing a support structure 120 on the back of the flexible display screen 110 and connecting the drive mechanism 130 to the free end to enable the flexible display screen 110 to move away from or closer to the support structure 120, fatigue and cracks caused by stretching or compression of the flexible display screen 110 are avoided. At the same time, the stress distribution is made more uniform and local stress concentration is reduced, thereby ensuring the reliability and stability of the display device 100 in various states.

[0041] In some embodiments, the display device 100 further includes: a first fixing member 181 connected to the free end; a drive mechanism 130 connected to the free end via the first fixing member 181; and a second fixing member 182 connected to the fixed end.

[0042] In this embodiment, the display device 100 may further include a first fixing member 181 and a second fixing member 182. The first fixing member 181 may be connected to the free end, and the second fixing member 182 may be connected to the fixed end.

[0043] The first fixing member 181 can be a component connected to the free end of the flexible display screen, used to mechanically connect the drive mechanism 130 to the free end, so that the driving force output by the drive mechanism 130 can be effectively transmitted to the flexible display screen 110. The first fixing member 181 can serve as a connecting bridge between the drive mechanism 130 and the flexible display screen 110, and its structural form and connection method can be set according to specific needs. For example, the first fixing member 181 can be a connector with a flat plate structure, one side of which is fixedly connected to the free end of the flexible display screen 110, and the other side is connected to the output end of the drive mechanism 130. As another example, the first fixing member 181 can be a connector with a slot or clamping structure, which is connected to the free end of the flexible display screen 110 by clamping, facilitating assembly and disassembly. The material of the first fixing member 181 can be various. Specifically, the material can be metal, plastic, or composite material. The first fixing member 181 has sufficient strength and rigidity to withstand the force applied by the drive mechanism 130, while minimizing weight to reduce the burden on the drive mechanism 130.

[0044] The drive mechanism 130 can be connected to the free end via the first fixing member 181. Using the first fixing member 181 as an intermediate connecting element avoids potential localized stress concentration or damage that might result from the drive mechanism 130 directly acting on the flexible display screen 110. The first fixing member 181 can evenly distribute the force applied by the drive mechanism 130 over a larger area of ​​the free end, reducing the force per unit area and protecting the flexible display screen 110 from damage.

[0045] The second fastener 182 may be a component connected to the fixed end of the flexible display screen 110, used to stably mount the fixed end of the flexible display screen 110 onto the housing or other support structure 120 of the display device 100. The second fastener 182 serves as the mounting base for the flexible display screen 110, ensuring that the fixed end remains stable during operation and providing a reliable fulcrum for the bending movement of the flexible display screen 110.

[0046] The second fixing member 182 can take various forms. For example, the second fixing member 182 can be a fixing plate with mounting holes, fixed to the housing of the display device 100 by screws or bolts. Another example is a mounting base with a snap-fit ​​structure, connected to the housing by a snap-fit ​​mechanism, facilitating assembly and maintenance. The connection method between the second fixing member 182 and the fixing end of the flexible display screen 110 can be adhesive, snap-fit, screw, or other mechanical fixing methods to ensure that there is no relative displacement between the fixing end and the second fixing member 182 during movement.

[0047] The second fixing member 182 can be fixedly installed on the housing or other fixed structure of the display device 100, so that the fixed end of the flexible display screen 110 becomes a reference point or fixed end during the movement process. With the stable fixing of the second fixing member 182, it can be ensured that the flexible display screen 110 has a clear movement reference during the bending process, and the movement trajectory of the free end relative to the fixed end is more controllable, thereby improving the accuracy and repeatability of the bending movement.

[0048] The first fixing member 181 and the second fixing member 182 enable stable fixation and reliable connection at both ends of the flexible display screen 110, providing a clear point of action and support for the drive mechanism 130. The first fixing member 181, acting as a connecting bridge between the drive mechanism 130 and the free end, not only achieves effective force transmission but also disperses the driving force, preventing damage to the flexible display screen 110 caused by localized stress concentration. The second fixing member 182 provides a stable mounting base for the fixed end of the flexible display screen 110, ensuring the stability of the motion reference during bending and improving motion control accuracy.

[0049] With the cooperation of the first fixing member 181 and the second fixing member 182, the flexible display screen 110 is subjected to clear force and its movement is controllable during bending, which effectively avoids screen damage caused by improper connection or unstable fixation, and improves the structural reliability and service life of the display device 100.

[0050] Please see Figure 2 In some embodiments, the flexible display screen 110 includes: a display panel 111, including opposing display surfaces and non-display surfaces; a cover plate 112 disposed on one side of the display surface; and a first fastener 181 connected to the cover plate 112.

[0051] In this embodiment, the flexible display screen 110 may include a display panel 111 and a cover plate 112. The cover plate 112 is disposed on the display surface of the display panel 111, and the first fastener 181 is connected to the cover plate 112.

[0052] The display panel 111 may include opposing display surfaces and non-display surfaces. The display surface is the side of the display panel 111 used for displaying images, i.e., the side facing the user. This surface has a pixel array and light-emitting units, capable of emitting light of different colors and brightnesses according to electrical signals to form an image. The non-display surface is the opposite side of the display surface, i.e., the side facing away from the user. This surface does not participate in image display and can be provided with various support structures 120 or connection structures without affecting the display effect.

[0053] The display panel 111 can be a flexible organic light-emitting diode display panel 111, which uses flexible materials such as polyimide as a substrate, so that the entire display panel 111 can be bent or folded. The display panel 111 can also be a flexible liquid crystal display panel 111, a flexible electronic paper display panel 111, or other types of flexible display panels 111, as long as it has the characteristic of being bendable.

[0054] Cover plate 112 can be a protective layer covering the display surface of display panel 111, used to protect display panel 111 from external damage, dust contamination, and moisture corrosion, while providing a smooth surface to improve touch experience and visual effects. Cover plate 112 can be made of flexible transparent material. For example, ultra-thin glass, transparent polyimide, colorless polyimide, or other materials with high transparency and good flexibility. The thickness of cover plate 112 can be selected according to the requirements of flexibility and protective performance, ranging from tens of micrometers to hundreds of micrometers. Cover plate 112 can be bonded to the display surface of display panel 111 through an optically transparent adhesive layer to ensure good optical performance and connection strength.

[0055] The first fastener 181 is not directly connected to the display panel 111, but is indirectly connected to it via the cover plate 112. The display panel 111 itself is relatively fragile, and its display surface needs to be kept flat and clean to ensure display quality. Directly placing a connection structure on the display panel 111 may damage it or affect display quality. By connecting the first fastener 181 to the cover plate 112, direct contact and potential damage to the display panel 111 can be avoided. As an intermediate layer, the cover plate 112 can evenly distribute the force applied by the first fastener 181 over a larger area, reducing local stress concentration. Simultaneously, the second region 114 of the cover plate 112 does not participate in image display; therefore, a connection structure can be placed in this region without affecting the display effect.

[0056] Specifically, there are several ways to connect the first fastener 181 to the cover plate 112. For example, the first fastener 181 can be connected to the cover plate 112 by adhesive bonding, using optically transparent adhesive or structural adhesive to ensure connection strength and reliability. Alternatively, the first fastener 181 can be connected to the cover plate 112 mechanically, such as by snap-fit, screwing, or fitting, facilitating assembly and disassembly. Yet another example is that the first fastener 181 can be integrally molded with the cover plate 112, directly forming the connection structure during the injection molding or molding of the cover plate 112, reducing the number of parts and improving connection reliability.

[0057] By configuring the flexible display screen 110 as a stacked structure of a display panel 111 and a cover plate 112, the display function and the protection function are separated. The display panel 111 is responsible for image display, while the cover plate 112 is responsible for protection and connection. The first fastener 181 is connected to the cover plate 112 rather than directly to the display panel 111, avoiding direct contact and potential damage to the display panel 111, thus protecting the integrity and display quality of the display panel 111. As an intermediate connecting layer, the cover plate 112 can evenly distribute the force applied by the drive mechanism 130, reduce local stress concentration, and make the force more smoothly transmitted to the entire flexible display screen 110.

[0058] In some embodiments, the cover plate 112 includes a first region 113 and a second region 114 surrounding the first region 113; the orthographic projection of the display panel 111 on the cover plate 112 overlaps with the first region 113; and a first fastener 181 is connected to the second region 114.

[0059] In this embodiment, the cover plate 112 may include a first region 113 and a second region 114, and the first fastener 181 is connected to the second region 114.

[0060] The cover plate 112, serving as a protective layer covering the display surface of the display panel 111, can be divided into two functionally distinct areas. The first area 113 can be the central area on the cover plate 112 corresponding to the display area of ​​the display panel 111. This area needs to maintain good light transmittance and optical uniformity to ensure that the light emitted from the display panel 111 can pass through the cover plate 112 without loss and be presented to the user. The shape and size of the first area 113 are typically matched to the display area of ​​the display panel 111. For example, the shape of the first area 113 can be rectangular, circular, or other shapes.

[0061] The second region 114 can be the peripheral region of the cover plate 112 surrounding the first region 113, that is, a ring-shaped region extending from the edge of the first region 113 to the edge of the cover plate 112. The second region 114 is not directly located above the display area of ​​the display panel 111, so it does not participate in image display, but can be used to set various connection structures, decorative layers or functional elements.

[0062] The orthographic projection of the display panel 111 onto the cover plate 112 can overlap with the first region 113. The orthographic projection can be the projection area of ​​the display panel 111 onto the cover plate 112 along a direction perpendicular to the plane of the cover plate 112. When the display panel 111 and the cover plate 112 are stacked, the vertical projection of the display area of ​​the display panel 111 onto the cover plate 112 falls exactly within the first region 113, meaning the first region 113 and the display area of ​​the display panel 111 are completely corresponding in the vertical direction. This correspondence ensures that all light emitted from the display panel 111 can pass through the first region 113 without being blocked by any structure or coating that may be installed in the second region 114, thus guaranteeing the integrity of the display area and the uniformity of the display effect. The display panel 111 and the cover plate 112 can be bonded together using an optically transparent adhesive layer to ensure good optical coupling and mechanical connection.

[0063] The first fixing member 181 may not be connected to the first region 113 of the cover plate 112, but rather to the second region 114, i.e., the peripheral region of the cover plate 112. The first region 113 corresponds to the display area of ​​the display panel 111, which needs to maintain unobstructed light path and pure optical quality. If a connection structure is set in the first region 113, it may obstruct the display area, affect light transmittance, generate light spots, or cause uneven display. Connecting the first fixing member 181 to the second region 114 can completely avoid interference with the display area. The second region 114, as the peripheral non-display area of ​​the cover plate 112, does not participate in image display, so various connection structures can be freely set without affecting the display effect.

[0064] Specifically, there are several ways to connect the first fastener 181 to the second region 114. For example, the first fastener 181 can be connected to the second region 114 by adhesive bonding, using structural adhesive to ensure connection strength and reliability. Alternatively, the first fastener 181 can be connected to the second region 114 mechanically, such as by snap-fit, screw-fit, or fitting, facilitating assembly and disassembly. Yet another example is that the first fastener 181 can be integrally formed with the second region 114 of the cover plate 112, for instance, by directly forming the connection structure during the injection molding or molding of the cover plate 112, reducing the number of parts and improving connection reliability.

[0065] In this embodiment, by dividing the cover plate 112 into a first region 113 and a second region 114 corresponding to the display area, and making the orthographic projection of the display panel 111 overlap with the first region 113, the display area and the light-transmitting area are precisely corresponded, thus ensuring display integrity and optical quality.

[0066] Please see Figure 1In some embodiments, the drive mechanism 130 includes: a power source 140 for providing power; a constraint member 150 and a linkage structure 160, the linkage structure 160 being connected to the free end and the power source 140; the constraint member 150 being connected to the linkage structure 160, thereby restricting the movement of the free end through the linkage structure 160.

[0067] In this embodiment, the drive mechanism 130 may include a power source 140, a constraint member 150, and a linkage structure 160. The linkage structure 160 is connected to the free end and the power source 140, and the linkage structure 160 is connected to the constraint member 150.

[0068] The power source 140 can be a component that provides power. As the core of the drive mechanism 130, it converts electrical energy or other forms of energy into mechanical motion, providing power input to the entire drive mechanism 130. Specifically, the power source 140 can be an electric motor. For example, the power source 140 can be a DC motor, a stepper motor, or a servo motor, which can output rotary motion or linear motion through a matching mechanism. Alternatively, the power source 140 can also be a hydraulic cylinder, a pneumatic cylinder, an electromagnet, or a piezoelectric actuator, as long as it can provide controllable power output. The output end of the power source 140 is connected to the linkage structure 160 to transmit power to subsequent components.

[0069] The constraint member 150 can be a component used to limit motion, which restricts the movement path of the linkage structure 160 through mechanical constraints, thereby indirectly controlling the movement trajectory of the free end. The constraint member 150 can take various forms. For example, the constraint member 150 can be a plate-like component with a guide groove of a specific shape, the shape of which determines the movement path of a specific point on the linkage structure 160. Another example is that the constraint member 150 can be a block-like component with a guide surface, guiding the movement of the linkage structure 160 through surface contact. Yet another example is that the constraint member 150 can be a guide element such as a slide rail, guide rail, or guide rod. The constraint member 150 can typically be fixedly mounted on the housing, fastener, or other fixed structure of the display device 100, providing a stable constraint reference.

[0070] The linkage structure 160 can be a transmission element connecting the power source 140 and the free end, transmitting the motion output from the power source 140 to the free end and driving its movement. The linkage structure 160 may include one or more links, enabling different motion conversion functions as needed. For example, the linkage structure 160 can convert linear motion output from the power source 140 into oscillating motion, or rotary motion into a composite motion. The specific configuration, length ratio, and connection point positions of the linkage structure 160 can be set according to the required motion trajectory and mechanical characteristics.

[0071] The connection between the link structure 160 and the constraint member 150 can be direct contact or a connection through an intermediate element. For example, the link structure 160 may be provided with a sliding part 152, which slides within the guide groove of the constraint member 150, thereby restricting the movement path of that point on the link structure 160. Alternatively, the link structure 160 may contact the guide surface of the constraint member 150 through elements such as rollers or sliders 191 to achieve trajectory constraint. By constraining the movement trajectory of a specific point on the link structure 160, the motion pattern of the entire link structure 160 is determined, and consequently, the movement trajectory of the free end connected to the link structure 160 is also determined.

[0072] Specifically, the power source 140 generates driving force to drive the linkage structure 160 connected to it to move; during the movement, the linkage structure 160 is constrained by the constraint member 150, and a specific point on it is forced to move along a predetermined trajectory; since the overall movement of the linkage structure 160 is limited by the constraint member 150, the free end connected to the linkage structure 160 also moves along the predetermined trajectory; the free end drives the flexible display screen 110 to move, so that the flexible display screen 110 gradually bends or flattens according to a predetermined bending shape.

[0073] In this embodiment, through the coordinated operation of the power source 140, the constraint member 150 and the connecting rod structure 160, precise control of the movement of the free end is achieved, effectively solving the problem of uncontrollable movement and easy damage during the dynamic bending process of the flexible display screen 110, and improving the overall reliability and service life of the display device 100 to a certain extent.

[0074] Please see Figure 1 In some embodiments, the constraint member 150 is provided with a groove 151, and a sliding part 152 is slidably connected in the groove 151; the linkage structure 160 includes a first linkage structure 161 and a second linkage structure 162, one end of the first linkage structure 161 is connected to a free end, and the other end of the first linkage structure 161 is connected to the sliding part 152; one end of the second linkage structure 162 is connected to the power source 140, and the other end of the second linkage structure 162 is connected to the sliding part 152 / free end / first linkage structure 161.

[0075] In this embodiment, the constraint member 150 may be provided with a groove 151, within which a sliding portion 152 may be slidably connected. The connection structure may include a first link structure 161 and a second link structure 162. One end of the first link structure 161 may be connected to a free end, and the other end of the first link structure 161 may be connected to the sliding portion 152. One end of the second link structure 162 may be connected to a power source 140, and the other end of the second link structure 162 may be connected to one of the sliding portion 152, the free end, or the first link structure 161.

[0076] A groove 151 may be formed on the constraint member 150. The groove 151 can be a guide groove with a certain shape and length to guide the movement path of the sliding part 152. The shape of the groove 151 can be set according to the bending trajectory required by the flexible display screen 110. For example, the shape of the groove 151 can be a straight line, a circular arc, an elliptical arc, a parabola, or other complex curves. The cross-sectional shape of the groove 151 can match the shape of the sliding part 152. For example, the groove 151 can be a rectangular groove, a T-shaped groove, a dovetail groove, etc., to ensure that the sliding part 152 slides smoothly in the groove 151 without disengaging. The groove 151 can be set on the surface or inside the constraint member 150, and its length and curvature can be determined according to the movement stroke and trajectory of the free end.

[0077] The sliding part 152 can be a component that slides within the groove 151, connected to the connecting rod structure 160, and moves along a predetermined trajectory under the guidance of the groove 151. The specific form of the sliding part 152 can match the shape of the groove 151. For example, the shape of the sliding part 152 can be a slider 191, a roller, a pin, etc. The sliding part 152 and the groove 151 can adopt a sliding fit or a rolling fit to reduce friction and wear and improve the smoothness of movement. For example, the sliding part 152 can be a slider 191 with a contact surface with the groove 151, the surface of which can be provided with a lubricating layer or a self-lubricating material. The sliding part 152 can also be a roller, which reduces frictional resistance through rolling contact. The movement trajectory of the sliding part 152 within the groove 151 is completely determined by the shape of the groove 151. Therefore, by setting the shape of the groove 151, the movement path of the sliding part 152 can be precisely controlled.

[0078] The first link structure 161 and the second link structure 162 can be two components of the link structure 160. They cooperate with each other to achieve the transmission of power and the conversion of motion.

[0079] One end of the first connecting rod structure 161 is connected to the free end, and the other end is connected to the sliding part 152. Through this connection, the first connecting rod structure 161 acts as a bridge connecting the free end and the sliding part 152. When the sliding part 152 moves within the groove 151, the first connecting rod structure 161 moves accordingly and transmits the motion to the free end, driving the free end to move. The connection between the first connecting rod structure 161 and the free end can be a fixed connection or a hinged connection, i.e., a rotatable connection achieved through a pivot or pin to accommodate changes in angle during movement. The connection between the first connecting rod structure 161 and the sliding part 152 can be a fixed connection or a hinged connection, etc.

[0080] One end of the second link structure 162 is connected to the power source 140, and the other end of the second link structure 162 can be connected to the sliding part 152, the free end, or the first link structure 161. This connection method provides a variety of design options, which can be selected according to specific spatial layout and motion requirements.

[0081] In some embodiments, the other end of the second link structure 162 is connected to the sliding part 152. In this case, the power source 140 drives the second link structure 162 to move, and the second link structure 162 directly pushes the sliding part 152 to slide within the groove 151. The sliding part 152 then drives the first link structure 161 to move, thereby driving the free end to move. This connection method has the shortest transmission path and the highest efficiency.

[0082] In some embodiments, the other end of the second linkage structure 162 is connected to the free end. In this case, the power source 140 drives the second linkage structure 162 to move, and the second linkage structure 162 directly acts on the free end. Simultaneously, the sliding part 152 slides within the groove 151, constraining the movement of the first linkage structure 161, thereby jointly determining the motion trajectory of the free end. This connection method allows for more complex motion control.

[0083] In some embodiments, the other end of the second link structure 162 is connected to the first link structure 161. In this case, the power source 140 transmits force to a point on the first link structure 161 through the second link structure 162, driving the first link structure 161 to move. Simultaneously, the sliding part 152 slides within the groove 151, constraining the movement trajectory of the first link structure 161. This connection method can achieve a large lever arm or special motion characteristics within a limited space.

[0084] Specifically, the power source 140 generates driving force to drive the second linkage structure 162 to move; the second linkage structure 162 transmits power to the sliding part 152, the free end, or the first linkage structure 161; the sliding part 152 slides along a predetermined trajectory under the guidance of the slide groove 151; the first linkage structure 161 moves under the drive or constraint of the sliding part 152, transmitting its motion to the free end; the free end moves along a trajectory determined by the shape of the slide groove 151 and the linkage structure 160, driving the flexible display screen 110 to bend or flatten.

[0085] In this embodiment, the movement trajectory of the first linkage structure 161 can be precisely constrained by the cooperation of the groove 151 and the sliding part 152, thereby realizing the predetermined movement trajectory of the automatic end. The first linkage structure 161 is responsible for driving the free end and transmitting trajectory constraints, while the second linkage structure 162 is responsible for receiving power and transmitting it to the appropriate position. Various connection methods between the second linkage structure 162 and the sliding part 152, the free end, or the first linkage structure 161 can be optimized and selected according to spatial layout, motion requirements, and mechanical characteristics, increasing design flexibility.

[0086] Please see Figure 1 In some embodiments, the display device 100 further includes a slider 191 and a third fixing member; the slider 191 is rotatably fixed on the third fixing member and sleeved on the first connecting rod structure 161; the first connecting rod structure 161 and the slider 191 are movable relative to each other.

[0087] In this embodiment, the display device 100 may further include a slider 191 and a third fixing member. The slider 191 is rotatably fixed on the third fixing member and sleeved on the first connecting rod structure 161, and the first connecting rod structure 161 and the slider 191 can move relative to each other.

[0088] The slider 191 can be a block-shaped element sleeved on the first connecting rod structure 161, serving as an intermediate connector and providing a movable fulcrum for the first connecting rod structure 161. The specific shape and size of the slider 191 can be set according to the cross-sectional shape of the first connecting rod structure 161 and the motion requirements. For example, the slider 191 can be a rectangular block, a cylindrical sleeve, or other shapes. The slider 191 can be made of metal, plastic, or composite materials, and it has sufficient strength and wear resistance to withstand the forces and friction generated during movement.

[0089] The third fixing component can be a member used to install and fix the slider 191, providing a stable mounting base for the slider 191. The third fixing component can be fixedly installed on the housing, fixing member, or other fixing structure of the display device 100 to ensure its positional stability during operation. The specific form of the third fixing component can be set according to the installation space and fixing requirements. For example, the third fixing component can be a fixing bracket, mounting plate, base, or other structures. The third fixing component can be made of metal, plastic, or composite materials, possessing sufficient strength and rigidity to withstand the forces and torques generated during movement.

[0090] The slider 191 is rotatably fixed to the third fixed member. This rotatability can be achieved by connecting the slider 191 and the third fixed member in a relatively rotatable manner, allowing the slider 191 to rotate around the connection point. This connection method can be implemented through various structures. For example, the slider 191 can be connected to the third fixed member via a hinge or pivot shaft. The slider 191 has a shaft hole, and the third fixed member has a pivot shaft. The pivot shaft is inserted into the shaft hole, allowing the slider 191 to rotate freely around the pivot shaft axis. Another example is that the slider 191 can be connected to the third fixed member via a ball joint, enabling multi-directional rotation. Yet another example is that the slider 191 can be connected to the third fixed member via a bearing, reducing rotational friction. Through this rotatable connection method, the slider 191 can adjust its angle as needed during the movement of the first link structure 161, maintaining a good fit with the first link structure 161 at all times.

[0091] The slider 191 can be sleeved on the first connecting rod structure 161. This sleeved arrangement can be achieved by the slider 191 being arranged around the first connecting rod structure 161, with the first connecting rod structure 161 passing through the slider 191 or partially housed within it. The first connecting rod structure 161 and the slider 191 can move relative to each other; specifically, they can slide relative to each other. For example, the slider 191 can have a through hole through which the first connecting rod structure 161 passes, with a sliding fit allowing the first connecting rod structure 161 to slide axially relative to the slider 191. Alternatively, the slider 191 can have a guide groove, with the first connecting rod structure 161 partially housed within it and able to slide along the groove. The relative movement between the first connecting rod structure 161 and the slider 191 should be smooth, and friction can be reduced by using a lubricating layer, employing self-lubricating materials, or adding rolling elements.

[0092] Through the aforementioned connections, slider 191, the third fixing member, and the first connecting rod structure 161 together form a movable fulcrum system. Slider 191 is rotatably fixed to the third fixing member, while simultaneously being fitted onto the first connecting rod structure 161 and able to slide relative to it. This allows the first connecting rod structure 161 to both slide relative to slider 191 and rotate around the third fixing member via slider 191, achieving a composite motion.

[0093] Specifically, when the power source 140 drives the linkage structure 160 to move, the first linkage structure 161 slides relative to the slider 191 during the movement. At the same time, since the slider 191 is rotatably fixed to the third fixed member, the first linkage structure 161 will drive the slider 191 to rotate around the fixed point on the third fixed member during the sliding process. This combined sliding and rotating motion allows the first linkage structure 161 to flexibly adapt to the movement path defined by the constraint member 150, while ensuring the smoothness of the movement.

[0094] In this embodiment, the slider 191 and the third fixing member provide a movable fulcrum for the first link structure 161, enabling the first link structure 161 to perform a composite motion of sliding and rotation, thereby better adapting to the preset motion trajectory. The slider 191 is rotatably fixed to the third fixing member, providing a rotatable fulcrum for the first link structure 161, allowing the first link structure 161 to change its angle as needed during movement, avoiding jamming or stress concentration caused by angle mismatch. The slider 191 is fitted onto the first link structure 161 and can slide relative to it, allowing the first link structure 161 to adjust its position along its own axis to adapt to length changes during movement. This composite motion capability of sliding and rotation allows the first link structure 161 to smoothly follow the complex trajectory defined by the constraint member 150, reducing frictional resistance and energy loss during movement, and improving motion efficiency and stability.

[0095] Please see Figure 1 In some embodiments, the first linkage structure 161 includes two first linkages 163 spaced apart; one end of the first linkage 163 is connected to a free end, and the other end of the first linkage 163 is connected to a sliding part 152; the second linkage structure 162 includes a second linkage 164 and a third linkage 165; the second linkage 164 connects the two first linkages 163; one end of the third linkage 165 is connected to the second linkage 164, and the other end of the third linkage 165 is connected to a power source 140.

[0096] In this embodiment, the first link structure 161 may include two first links 163 spaced apart. The second link structure 162 may include a second link 164 and a third link 165.

[0097] The first link structure 161 can be composed of two first links 163, which are spatially spaced apart. This spacing can be achieved by maintaining a certain distance between the two first links 163, arranging them parallel to each other or at a certain angle, forming a parallel structure. One end of each of the two first links 163 is connected to a free end, and the other end is connected to a sliding part 152, forming a dual-point drive structure. The specific shape, length, and cross-sectional dimensions of the two first links 163 can be set according to the force requirements and spatial layout. For example, the first link 163 can be a straight rod, a bent rod, or a rod with a specific shape. The two first links 163 can use the same material and dimensions, or they can be arranged differently according to the force distribution.

[0098] One end of the first link 163 can be connected to the free end, and the other end of the first link 163 can be connected to the sliding part 152. Through this connection, the two first links 163 together connect the free end and the sliding part 152. The connection between the first link 163 and the free end can be a fixed connection or a hinged connection, that is, a connection that allows relative rotation via a pivot or pin to accommodate changes in angle during movement. The connection between the first link 163 and the sliding part 152 can also be a fixed connection or a hinged connection, allowing the first link 163 to rotate relative to the sliding part 152. The parallel arrangement of the two first links 163 ensures that the free end maintains a stable posture during movement, preventing deflection or tilting.

[0099] The second link 164 can be a transverse member connecting two first links 163, linking the two spaced-apart first links 163 together to form an integral frame structure. The specific form of the second link 164 can be set according to the connection requirements. For example, the second link 164 can be a straight rod, a bent rod, or a plate-like member. The connection method between the second link 164 and the two first links 163 can be a fixed connection. For example, the second link 164 and the two first links 163 can be welded, screwed, or integrally formed, so that the two first links 163 and the second link 164 form a rigid whole, or it can be a hinged connection, allowing a certain degree of relative rotation. The position of the second link 164 can be set according to force analysis and kinematic requirements. For example, the second link 164 can be set in the middle of the first link 163, near the free end, or near the sliding part 152.

[0100] The third link 165 can be a transmission component connecting the second link 164 and the power source 140. It transmits the power output from the power source 140 to the second link 164, thereby driving the entire first link structure 161 to move. One end of the third link 165 is connected to the second link 164, and the other end is connected to the power source 140. Specifically, the connection between the third link 165 and the second link 164 can be a fixed connection or a hinged connection, that is, a relatively rotatable connection is achieved through a pivot or pin to accommodate changes in angle during movement. The connection method between the third link 165 and the power source 140 can be set according to the output form of the power source 140. For example, when the power source 140 is an electric actuator, the third link 165 can be directly connected to the telescopic rod 142 of the electric actuator or connected through an intermediate connector.

[0101] Specifically, the power source 140 generates driving force to drive the third link 165 to move; the third link 165 drives the second link 164 connected to it to move; the second link 164 transmits power to the two first links 163 connected to it; the two first links 163 move under the power drive, while the sliding part 152 connected to its other end slides in the groove 151 of the constraint member 150; the two first links 163 jointly drive the free end to move, so that the flexible display screen 110 bends or flattens according to a predetermined trajectory.

[0102] During the aforementioned movement, the two spaced-apart first links 163 play a crucial role. They form a dual-point drive structure, applying driving force simultaneously at two points in the width direction of the free end, ensuring that the free end maintains a stable posture during movement and avoiding deflection or tilting that might occur due to single-point drive.

[0103] By setting two spaced first links 163, dual-point synchronous driving of the free end is achieved, making the force on the flexible display screen 110 more uniform during bending. This effectively avoids screen distortion, deflection, or stress concentration caused by single-point driving, making it particularly suitable for flexible display screens 110 with larger widths. The two first links 163 are connected by a second link 164, ensuring their motion synchronization and making the movement of each point along the width direction of the free end consistent, improving the uniformity and controllability of the bending shape. The third link 165, as an intermediate link in power transmission, transmits the power from the power source 140 to the second link 164, thereby driving the entire first link structure 161, realizing centralized input and distributed output of power. This parallel drive structure can disperse the driving force, reduce the load borne by a single first link 163, and help extend the service life of the drive mechanism 130 and the flexible display screen 110. At the same time, the setting of the second link 164 enhances the overall rigidity of the first link structure 161 and improves motion stability.

[0104] Please see Figure 3 In some embodiments, the first linkage structure 161 includes at least one first linkage 163, one end of which is connected to a free end and the other end of which is connected to a sliding part 152; the second linkage structure 162 includes a fourth linkage 166, one end of which is connected to a free end and the other end of which is connected to a power source 140.

[0105] In this embodiment, the first linkage structure 161 may include at least one first linkage 163, one end of which is connected to a free end, and the other end of which is connected to a sliding part 152. The second linkage structure 162 may include a fourth linkage 166, one end of which may be connected to a free end, and the other end of which may be connected to a power source 140.

[0106] The first linkage structure 161 can be composed of at least one first linkage 163. When the first linkage structure 161 includes one first linkage 163, a single-point drive structure is formed; when the first linkage structure 161 includes multiple first linkages 163, a multi-point drive structure is formed. The specific number of first linkages 163 can be set according to the size of the flexible display screen 110, the force requirements, and the motion characteristics.

[0107] One end of the first connecting rod 163 can be connected to the free end, and the other end can be connected to the sliding part 152, thereby mechanically connecting the free end and the sliding part 152. The connection between the first connecting rod 163 and the free end can be fixed, or it can be hinged, i.e., a rotatable connection achieved through a pivot or pin to accommodate changes in angle during movement. The connection between the first connecting rod 163 and the sliding part 152 can also be fixed, or it can be hinged, allowing the first connecting rod 163 to rotate relative to the sliding part 152. Through this connection, the movement of the sliding part 152 within the groove 151 is transmitted to the free end via the first connecting rod 163, driving the free end to move.

[0108] The second link structure 162 can be simplified, consisting of only a fourth link 166. The fourth link 166 can be a transmission component that directly connects the free end to the power source 140, transmitting the power output from the power source 140 directly to the free end. One end of the fourth link 166 is connected to the free end, and the other end is connected to the power source 140. The connection between the fourth link 166 and the free end can be fixed or hinged, i.e., a rotatable connection achieved through a pivot or pin to accommodate changes in angle during movement.

[0109] Specifically, the power source 140 generates driving force, directly driving the fourth link 166 to move; the fourth link 166 directly transmits its movement to the free end connected to it; at the same time, the first link structure 161 moves under the drive of the free end, and the sliding part 152 connected to one end slides in the groove 151 of the constraint member 150; the movement trajectory of the sliding part 152 in the groove 151 is constrained by the shape of the groove 151, and then the first link structure 161 provides feedback to constrain the movement trajectory of the free end; under the drive of the fourth link 166 and the joint constraint of the first link structure 161, the free end moves according to a predetermined trajectory, driving the flexible display screen 110 to bend or flatten.

[0110] During the aforementioned motion, the fourth link 166 and the first link structure 161 cooperate with each other: the fourth link 166 is mainly responsible for transmitting the driving force, while the first link structure 161 is mainly responsible for transmitting the trajectory constraint. This division of labor allows the power transmission path and the trajectory constraint path to be separated to a certain extent, and each can be configured according to its function.

[0111] The direct connection between the free end and the power source 140 via the fourth link 166 simplifies the power transmission path, reduces intermediate links, lowers energy loss, and improves transmission efficiency and motion accuracy. The motion output from the power source 140 acts directly on the free end, resulting in faster response and more direct control. Simultaneously, the cooperation between the first link structure 161 and the sliding part 152 retains precise trajectory constraint, ensuring the free end moves along a predetermined trajectory. This achieves functional separation of power transmission and trajectory constraint: the fourth link 166 focuses on efficient power transmission, while the first link structure 161 focuses on precise trajectory constraint; the two do not interfere with each other, making the drive mechanism 130 structure simpler, easier to manufacture and maintain, while ensuring high-precision trajectory control. In terms of spatial layout, the direct drive method of the fourth link 166 reduces the space occupied by transmission components, making the drive mechanism 130 more compact and suitable for space-constrained scenarios.

[0112] Please see Figure 4 In some embodiments, the first linkage structure 161 includes at least one first linkage 163, with a first end of the first linkage 163 connected to a free end and a second end of the first linkage 163 connected to a sliding part 152; the second linkage structure 162 includes a fifth linkage 167, a sixth linkage 168, and a seventh linkage 169; one end of the fifth linkage 167 is connected to the free end, the other end of the fifth linkage 167 is connected to one end of the sixth linkage 168, the other end of the sixth linkage 168 is connected to the seventh linkage 169; one end of the seventh linkage 169 is connected to the fifth linkage 167, and the other end of the seventh linkage 169 is connected to a power source 140.

[0113] In this embodiment, the first linkage structure 161 may include at least one first linkage 163, with the first end of the first linkage 163 connected to a free end and the second end of the first linkage 163 connected to a sliding part 152. The second linkage structure 162 may include a fifth linkage 167, a sixth linkage 168, and a seventh linkage 169, which are interconnected to form a compound linkage mechanism.

[0114] The first link structure 161 consists of at least one first link 163. The first link 163 has a first end and a second end; the first end is connected to the free end, and the second end is connected to the sliding part 152. The specific number of first links 163 can be selected according to the size of the flexible display screen 110, the force requirements, and the motion characteristics. When multiple first links 163 are used, they can be spaced apart to form a multi-point drive structure. The connection between the first link 163 and the free end and the sliding part 152 can be at least one of a fixed connection or a hinge. The hinge can achieve a relatively rotatable connection through a pivot or pin to accommodate changes in angle during movement. Through this connection, the movement of the sliding part 152 within the groove 151 is transmitted to the free end through the first link 163, driving the free end to move. Simultaneously, the first link 163 also serves to transmit trajectory constraints to the free end.

[0115] The fifth link 167 can be an intermediate component connecting the free end and the sixth link 168. One end of the fifth link 167 is connected to the free end, and the other end is connected to one end of the sixth link 168. The connection between the fifth link 167 and the free end can be hinged to accommodate angle changes during movement. Alternatively, the connection between the fifth link 167 and the free end can be fixed. The connection between the fifth link 167 and the sixth link 168 can also be hinged, allowing relative rotation between them.

[0116] The sixth link 168 can be an intermediate component connecting the fifth link 167 and the seventh link 169. One end of the sixth link 168 is connected to the fifth link 167, and the other end is connected to the seventh link 169. The connection between the sixth link 168 and both the fifth and seventh links 167 can be hinged, forming a connection that allows relative rotation. The length, shape, and connection point position of the sixth link 168 can be set according to kinematic and mechanical requirements.

[0117] The seventh link 169 can be a transmission component connecting the sixth link 168 and the power source 140. One end of the seventh link 169 is connected to the fifth link 167, and the other end is connected to the power source 140. The connection between the seventh link 169 and the fifth link 167 can be hinged, forming a relatively rotatable connection. The connection method between the seventh link 169 and the power source 140 can be set according to the output form of the power source 140. For example, when the power source 140 is an electric actuator, the seventh link 169 can be directly connected to the telescopic rod 142 of the electric actuator or connected through an intermediate connector.

[0118] Through the above connection relationships, the fifth link 167, the sixth link 168, and the seventh link 169 together constitute a compound linkage mechanism. This mechanism has multiple hinge points and multiple degrees of freedom, and can realize complex motion transformations.

[0119] Specifically, the power source 140 generates driving force to drive the seventh link 169 to move; the seventh link 169 drives the fifth link 167 and the sixth link 168 connected to it to move; the fifth link 167 transmits the motion to the free end connected to it; at the same time, the first link structure 161 moves under the drive of the free end, and the sliding part 152 connected to one end slides in the groove 151 of the constraint member 150; the movement trajectory of the sliding part 152 in the groove 151 is constrained by the shape of the groove 151, and then the first link structure 161 provides feedback to constrain the movement trajectory of the free end; under the drive of the fifth link 167 and the joint constraint of the first link structure 161, the free end moves according to a predetermined trajectory, driving the flexible display screen 110 to bend or flatten.

[0120] During the aforementioned motion, the composite linkage mechanism consisting of the fifth link 167, the sixth link 168, and the seventh link 169 plays multiple roles. First, they transmit the power output from the power source 140 to the free end; second, they can adjust the motion characteristics by setting the link lengths and connection point positions. For example, they can change the direction of motion, increase the stroke, or adjust the speed ratio; they can also provide additional degrees of freedom, making the motion of the free end more flexible and smooth.

[0121] The complex linkage mechanism composed of the fifth link 167, the sixth link 168, and the seventh link 169 achieves complex motion conversion and force transmission functions. This multi-link structure 160 can adjust its motion characteristics according to design requirements, such as amplifying the small-stroke motion of the power source 140 into a large-stroke motion at the free end, or converting linear motion into curvilinear motion, enhancing design flexibility and adaptability. Multiple hinge points provide more degrees of freedom, allowing the free end to follow the predetermined trajectory more smoothly, reducing jamming and stress concentration. By setting the length ratio of each link and the position of the connection points, the kinematic and dynamic characteristics of the drive mechanism 130 can be improved, achieving ideal force amplification and motion trajectory to meet different bending requirements. This structure is suitable for complex trajectories or special mechanical performance scenarios, such as the uniform or non-uniform curvature bending of a large-size flexible display screen 110. The modular design facilitates adjustment and optimization according to different needs, improving applicability and design flexibility.

[0122] Please see Figure 5 In some embodiments, the first linkage structure 161 includes at least one first linkage 163, one end of which is connected to a free end, and the other end of which is connected to a sliding portion 152; the second linkage structure 162 includes an eighth linkage 170, one end of which is connected to the sliding portion 152, and the other end of which is connected to a power source 140.

[0123] In this embodiment, the first link structure 161 may include at least one first link 163, and the second link structure 162 may include an eighth link 170.

[0124] The first linkage structure 161 is composed of at least one first link 163. When the first linkage structure 161 includes one first link 163, a single-point drive structure is formed.

[0125] The first linkage structure 161 may also include multiple first linkages 163, which can be connected at their beginning and end points. When the first linkage structure 161 includes multiple first linkages 163 connected in series at their beginning and end points, the overall lever arm can be extended, allowing a smaller driving force to generate a larger driving torque and improving driving efficiency. Using multiple shorter linkages instead of a single long linkage reduces manufacturing difficulty and cost, and improves assembly convenience. When adjacent linkages are hinged, they can rotate relative to each other, enhancing structural flexibility, making the movement smoother, and reducing jamming and stress concentration. The series structure allows for graded transmission of driving force. By setting the length and cross-sectional dimensions of each linkage, the stress state can be improved, enhancing overall strength and durability. Adjusting the length ratio of each linkage can change the motion amplification factor and motion characteristics, meeting different speed and bending angle requirements, improving applicability and design flexibility. Modular design facilitates rapid assembly of the required length, shortening the development cycle and reducing costs. In addition, the series structure can flexibly adapt to complex spatial layouts and obstacle avoidance requirements by adjusting the extension direction and angle of each linkage.

[0126] One end of the first connecting rod 163 is connected to the free end, and the other end is connected to the sliding part 152, thereby mechanically connecting the free end and the sliding part 152. The connection between the first connecting rod 163 and the free end can be hinged, that is, a rotatable connection is achieved through a pivot or pin to accommodate changes in angle during movement. The connection between the first connecting rod 163 and the sliding part 152 can also be hinged, allowing the first connecting rod 163 to rotate relative to the sliding part 152. Through this connection, the movement of the sliding part 152 within the groove 151 is transmitted to the free end through the first connecting rod 163, driving the free end to move.

[0127] The second link structure 162 may also include an eighth link 170, one end of which is connected to the sliding part 152, and the other end of which is connected to the power source 140.

[0128] The second linkage structure 162 adopts a simplified configuration, including only an eighth linkage 170. The eighth linkage 170 can be a transmission component that directly connects the sliding part 152 and the power source 140, directly transmitting the power output from the power source 140 to the sliding part 152. One end of the eighth linkage 170 is connected to the sliding part 152, and the other end is connected to the power source 140. The connection between the eighth linkage 170 and the sliding part 152 can be hinged, i.e., a rotatable connection is achieved through a pivot or pin to accommodate changes in angle during movement. The connection method between the eighth linkage 170 and the power source 140 can be designed according to the output form of the power source 140. For example, when the power source 140 is an electric actuator, the eighth linkage 170 can be directly connected to the telescopic rod 142 of the electric actuator or connected through an intermediate connector.

[0129] Specifically, the power source 140 generates driving force, which directly drives the eighth link 170 to move. The eighth link 170 directly transmits its movement to the sliding part 152 connected to it. Under the drive of the eighth link 170, the sliding part 152 slides along the groove 151 of the constraint member 150. The movement of the sliding part 152 is transmitted to the free end through the first link 163. The free end moves according to the trajectory determined by the shape of the groove 151 and the first link structure 161, driving the flexible display screen 110 to bend or flatten.

[0130] During the aforementioned motion, the eighth link 170 can directly act on the sliding part 152, rather than on the free end or the first link structure 161. This design allows the power source 140 to apply driving force directly to the sliding part 152 through the eighth link 170, with the sliding part 152 serving as the starting point for the drive, and then transmitting the motion to the free end through the first link 163.

[0131] In this embodiment, the sliding part 152 is directly connected to the power source 140 via the eighth link 170, realizing direct drive of the sliding part 152. This simplifies the power transmission path, reduces intermediate links, lowers energy loss, and improves transmission efficiency. The motion output from the power source 140 directly acts on the sliding part 152, making the sliding part 152 the motion input point, resulting in more direct and precise control. The movement of the sliding part 152 within the groove 151 is driven by the eighth link 170 and precisely constrained by the groove 151, achieving a unified drive and constraint, ensuring that trajectory control accuracy is not interfered with by other mechanisms. The first link structure 161, as a driven member, is only responsible for transmitting the motion of the sliding part 152 to the free end and does not participate in power input, thus separating the power input point (sliding part 152) from the motion output point (free end). This separation design allows for more flexible spatial layout, enabling the power source 140 to be placed away from the free end, adapting to different installation space constraints. Simultaneously, direct drive of the sliding part 152 makes the force more clearly defined, reducing energy loss and motion errors in multi-stage transmission. For applications requiring precise control and with limited space, this simple structure enables a compact design and efficient transmission while ensuring trajectory accuracy.

[0132] In some implementation methods, during the bending process of the flexible display screen 110, the flexible display screen 110 includes an attachment portion 101 that is attached to the support structure 120 and a separation portion 102 that is separated from the support structure 120; in the bent state, the flexible display screen 110 is completely attached to the support structure 120.

[0133] In this embodiment, the flexible display screen 110 may include an adhering portion 101 and a separating portion 102. The adhering portion 101 may be the part of the flexible display screen 110 that adheres to the support structure 120, and the separating portion 102 may be the part of the flexible display screen 110 that is separated from the support structure 120. The adhering portion 101 may be the part of the flexible display screen 110 that contacts and adheres to the support structure 120 during bending. As the degree of bending increases, the area of ​​the adhering portion 101 gradually increases, gradually expanding from near the fixed end towards the free end. The separating portion 102 may be the part of the flexible display screen 110 that is separated from the support structure 120 and does not contact it during bending. As the degree of bending increases, the area of ​​the separating portion 102 gradually decreases until it may completely disappear in the bent state.

[0134] The force applied to the free end by the drive mechanism 130 can always be perpendicular to the surface of the separation section 102. The direction of the force applied by the drive mechanism 130 remains perpendicular to the surface of the separation section 102. When the force is perpendicular to the surface of the separation section 102, the force mainly causes the flexible display screen 110 to undergo bending deformation, rather than stretching or compressing deformation.

[0135] Specifically, during the bending process, the surface of the separation portion 102 has different tangential directions at different positions. The drive mechanism 130 precisely controls the direction of force application, ensuring that the force applied to the free end is always consistent with the normal direction of the surface of the separation portion 102 at the current position. In this way, the force is mainly used to overcome the bending stiffness of the flexible display screen 110, rather than generating additional tensile or compressive stress on the screen material.

[0136] For example, when the surface of the separation part 102 is at a certain angle to the horizontal plane, the force applied by the drive mechanism 130 is also adjusted to be perpendicular to that angle; as the bending proceeds, the angle of the surface of the separation part 102 changes continuously, and the direction of the force applied by the drive mechanism 130 is also adjusted accordingly, always maintaining a perpendicular relationship.

[0137] In its bent state, the flexible display screen 110 can be fully fitted with the support structure 120. Full fit means that the entire back surface of the flexible display screen 110 is in complete contact with the corresponding surface of the support structure 120, with no gaps or separation areas between them. This fully fitted state indicates that the flexible display screen 110 has been bent to its design limit, with its back surface completely supported by the support structure 120, achieving maximum support area and dimensional stability. The surface shape of the support structure 120 can be set to match the bending shape of the flexible display screen 110 in its bent state. For example, the surface shape of the support structure 120 can be a circular arc surface, an elliptical arc surface, or other complex curved surfaces to ensure uniform contact between the two during full fit, without any localized suspension or excessive compression.

[0138] Specifically, when the driving mechanism 130 drives the free end to move closer to the support structure 120, the flexible display screen 110 gradually transitions from a flat state to a bent state, and the contact area between its back and the support structure 120 gradually increases; when the free end moves to its limit position, the flexible display screen 110 reaches a bent state, at which point its back is completely attached to the support structure 120, and the entire screen rests on the support structure 120; when the driving mechanism 130 drives the free end to move away from the support structure 120, the flexible display screen 110 gradually returns from the bent state to a flat state, and its back gradually separates from the support structure 120.

[0139] In this embodiment, by achieving complete adhesion between the flexible display screen 110 and the support structure 120 in a bent state, comprehensive mechanical support is provided for the flexible display screen 110, effectively maintaining the stability of the bent shape and preventing deformation caused by gravity, vibration, or external forces. The complete adhesion makes the screen more evenly stressed, and the support structure 120 can share the screen's own weight and external loads, reducing the stress on the screen material in the bent state and extending the service life of the flexible display screen 110. In application environments with vibration, such as vehicle movement, the complete adhesion support can significantly reduce screen vibration and sway, improving display stability and viewing experience. The comprehensive support of the support structure 120 can also act as a limiting device, preventing the flexible display screen 110 from being excessively bent beyond the set range, providing additional safety protection. For scenarios requiring long-term maintenance of a bent state, such as a display screen in a folded state, the complete adhesion design ensures the screen's shape remains stable during prolonged bending, avoiding permanent deformation caused by material creep.

[0140] In some embodiments, the display device 100 further includes a telescopic rod 142; the power source 140 includes a motor or cylinder; the power source 140 is connected to the telescopic rod 142; the telescopic rod 142 is connected to the second linkage structure 162.

[0141] In this embodiment, the display device 100 may further include a telescopic rod 142, and the power source 140 may include a motor or a cylinder. The power source 140 is connected to the telescopic rod 142, and the telescopic rod 142 is connected to the second linkage structure 162. The power source 140 drives the telescopic rod 142 to move.

[0142] The power source 140 can be an electric motor or a cylinder. The electric motor is the core component of the power source 140, used to convert electrical energy into mechanical energy and output rotational motion. The specific type of motor can be selected based on control accuracy, response speed, and cost requirements. For example, the motor can be a DC motor, which is simple in structure and low in cost, suitable for applications with general control accuracy requirements. Another example is a stepper motor, which can achieve open-loop precise position control, suitable for scenarios requiring accurate positioning. Yet another example is a servo motor, which features fast response, high precision, and closed-loop control, suitable for high-end applications with stringent motion control requirements.

[0143] The power source 140 can be a cylinder. A cylinder is a power element that uses compressed air as its working medium to convert pressure energy into mechanical motion. Specifically, a cylinder can include a cylinder body, a piston, and a piston rod. After compressed air enters the cylinder body, it drives the piston to reciprocate. The piston rod moves synchronously with the piston, outputting linear driving force. There can be various types of cylinders. For example, a cylinder can be a single-acting cylinder, where compressed air enters from only one side, driving the piston to move in one direction, and resetting relies on spring force or external force; it can also be a double-acting cylinder, where compressed air enters alternately from both sides, achieving bidirectional reciprocating motion of the piston. Another example is a rodless cylinder, where the piston drives an external slider through magnetic force or mechanical coupling, suitable for scenarios with limited installation space. The output end of the cylinder is connected to the telescopic rod 142, transmitting linear motion to subsequent components to drive the flexible display screen to bend or flatten.

[0144] The display device 100 may also include a telescopic rod 142. The telescopic rod 142 can be a linear motion output component that cooperates with the power source 140, converting the rotational motion of the power source 140 into linear reciprocating motion. The specific structure of the telescopic rod 142 can be varied. For example, the telescopic rod 142 can be a screw-nut mechanism, where the power source 140 drives the screw to rotate, and the screw drives the nut to move linearly along the axial direction, with the nut serving as the output end of the telescopic rod 142. Another example is that the telescopic rod 142 can be an electric push rod, where a motor drives the push rod to extend or retract via a gear reduction mechanism, with the push rod serving as the output end of the telescopic rod 142. Yet another example is that the telescopic rod 142 can be a synchronous belt drive mechanism or a rack and pinion mechanism, as long as it can achieve the conversion from rotation to linear motion. The output end of the telescopic rod 142 performs linear reciprocating motion, with a defined stroke range and speed.

[0145] The telescopic rod 142 is connected to the second link structure 162, transmitting the linear motion generated by the power source 140 to the second link structure 162. There are several ways to connect the telescopic rod 142 and the second link structure 162. For example, the end of the telescopic rod 142 can be connected to the end of the second link structure 162 via a hinge, i.e., a rotatable connection via a pivot or pin to accommodate changes in angle during movement. Alternatively, the end of the telescopic rod 142 can be connected to the end of the second link structure 162 via a fixed connection, such as a threaded connection, welding, or integral molding, suitable for scenarios where relative rotation is not required. Furthermore, the telescopic rod 142 and the second link structure 162 can be connected via an intermediate connector, such as a coupling or universal joint, to adapt to different spatial layouts and motion requirements.

[0146] Specifically, the power source 140 receives a control signal and outputs rotational motion. The rotational motion is transmitted to the telescopic rod 142, which is converted into linear reciprocating motion through an internal motion conversion mechanism. The linear motion of the telescopic rod 142 is transmitted to the second linkage structure 162 through its connection point with the second linkage structure 162. The second linkage structure 162 further transmits the motion to subsequent components, ultimately driving the free end to move, thereby realizing the bending or flattening of the flexible display screen 110.

[0147] The telescopic rod 142 is driven by the power source 140 to output linear motion, providing a stable and controllable power input to the drive mechanism 130. It features a compact structure, high control precision, and fast response speed. The telescopic rod 142 is directly connected to the second linkage structure 162, which simplifies the power transmission path, reduces energy loss in intermediate links, and improves transmission efficiency.

[0148] Please see Figure 6 and Figure 7 In some embodiments, the second linkage structure 162 is connected to the telescopic rod 142 at a position close to / away from the power source 140.

[0149] In this embodiment, the connection point between the second linkage structure 162 and the telescopic rod 142 can be located near the power source 140 or away from the power source 140.

[0150] The connection point between the second linkage structure 162 and the telescopic rod 142 can be selected, depending on the requirements, at a position on the telescopic rod 142 closer to or further away from the power source 140. The telescopic rod 142 has one end closer to the power source 140 and one end further away from the power source 140. The end closer to the power source 140 is connected to the drive mechanism 130 of the power source 140 and is the root of the telescopic rod 142. The end further away from the motor is the free end or end of the telescopic rod 142. Different connection positions will result in different motion characteristics and mechanical effects.

[0151] The second link structure 162 can be connected to the telescopic rod 142 at a position away from the power source 140. That is, the second link structure 162 is connected to the free end or end position of the telescopic rod 142. The end of the telescopic rod 142 away from the power source 140 has the largest stroke range, and the movement at this end directly reflects the overall extension and retraction of the telescopic rod 142. Connecting the second link structure 162 to this position allows the second link structure 162 to obtain the same stroke and speed as the end position of the telescopic rod 142.

[0152] By connecting the second linkage structure 162 to a position on the telescopic rod 142 away from the power source 140, the maximum driving stroke can be obtained, enabling the second linkage structure 162 to achieve a wider range of movement, thereby driving the flexible display screen 110 to bend at a larger angle. The movement at the end of the telescopic rod 142 is directly transmitted to the second linkage structure 162 without the need for an intermediate conversion mechanism, resulting in the shortest transmission path, minimal energy loss, and highest transmission efficiency. The connection point is located at the end of the telescopic rod 142, facilitating assembly and maintenance and providing a larger operating space. This connection method ensures that the movement of the second linkage structure 162 is completely synchronized with the telescopic rod 142, which is beneficial for precisely controlling the bending angle and speed of the flexible display screen 110. For applications requiring greater driving force, the end of the telescopic rod 142 can provide the maximum lever arm, which helps to improve the driving effect.

[0153] The second link structure 162 can be connected to the telescopic rod 142 near the power source 140. Specifically, the second link structure 162 is connected to the root of the telescopic rod 142, near the end closest to the power source 140. Although the stroke of the end of the telescopic rod 142 near the power source 140 is smaller, the bending moment at this location is smaller, resulting in higher motion stability.

[0154] By connecting the second linkage structure 162 to the telescopic rod 142 near the power source 140, a more stable power output can be obtained, reducing vibration and sway caused by the overhang length of the telescopic rod 142 and improving motion accuracy. The root of the telescopic rod 142 has greater motion stiffness and can withstand greater lateral forces, making it suitable for applications with high stability requirements. The connection point is close to the power source 140, shortening the lever arm length, which helps to increase the natural frequency of the system and avoid resonance. This connection method makes the overall structure of the drive mechanism 130 more compact, reduces the length of the exposed part of the telescopic rod 142, and helps to save installation space, making it suitable for internal layouts of space-constrained display devices 100. For applications requiring precise control and with small load changes, the connection position close to the power source 140 can provide smoother power transmission, ensuring the smoothness and controllability of the bending process of the flexible display screen 110.

[0155] In this embodiment, the connection position between the second linkage structure 162 and the telescopic rod 142 can be flexibly selected according to specific application requirements and space constraints. When a large stroke and large-angle bending are required, a connection position away from the motor can be selected; when space is limited or high motion stability is required, a connection position closer to the motor can be selected. This design flexibility allows the drive mechanism 130 to adapt to different application scenarios, improving the applicability and flexibility of the display device 100.

[0156] In some embodiments, slider 191 includes a first limiting structure; first link structure 161 includes a second limiting structure; the first limiting structure and the second limiting structure are disposed opposite to each other; the first limiting structure and the second limiting structure cooperate with each other to limit the relative range of motion between slider 191 and first link structure 161 during the movement of first link structure 161 relative to slider 191.

[0157] In this embodiment, the slider 191 may include a first limiting structure, and the first connecting structure may include a second limiting structure. The first limiting structure and the second limiting structure cooperate with each other and can limit the relative movement range between the first connecting rod structure 161 and the slider 191 to a certain extent.

[0158] The first and second limiting structures can be physical structures used to limit the relative range of motion. Together, they constitute a limiting mechanism to prevent the moving parts from exceeding the designed range of motion. Specifically, the first and second limiting structures can take various forms. For example, the first limiting structure can be a protrusion, stop, limiting post, or limiting surface on the slider 191; the second limiting structure can be a protrusion, stop, limiting post, or limiting surface on the first connecting rod structure 161. Another example is that the first limiting structure can be a limiting groove, and the second limiting structure can be a limiting protrusion accommodated within the groove, limiting the range of motion through the contact between the end wall of the groove and the protrusion. Yet another example is that the first limiting structure can be an annular flange, and the second limiting structure can be a mating annular step, limiting the relative sliding range through the contact between the flange and the step. The materials for the first and second limiting structures can be metal, plastic, or rubber, etc.

[0159] The relative arrangement can be such that the first limiting structure and the second limiting structure correspond to each other in spatial position, so that when the relative movement between the slider 191 and the first connecting rod structure 161 reaches its limit position, they can contact or interfere with each other. For example, when the first limiting structure is a stop block set at both ends of the slider 191, the second limiting structure can be set at the corresponding position of the first connecting rod structure 161, so that when the first connecting rod structure 161 slides to one end limit relative to the slider 191, the second limiting structure contacts the first limiting structure.

[0160] Specifically, when the drive mechanism 130 drives the first link structure 161 to move, the first link structure 161 slides relative to the slider 191; when the relative sliding between the first link structure 161 and the slider 191 reaches a preset limit position, the first limiting structure and the second limiting structure come into contact or abut against each other; this contact or abutment prevents further relative movement between the first link structure 161 and the slider 191, thereby limiting the relative movement within a safe range.

[0161] The cooperation of the first and second limiting structures can provide limiting in multiple directions. For example, it can limit the maximum axial displacement of the first connecting rod structure 161 relative to the slider 191, preventing the first connecting rod structure 161 from disengaging from the slider 191; it can also limit the rotation angle of the first connecting rod structure 161 relative to the slider 191, preventing excessive rotation from causing the mechanism to jam or be damaged. Multiple first limiting structures and multiple second limiting structures can be provided to provide limiting protection in different directions. For example, first limiting structures can be provided at both ends of the slider 191, and second limiting structures can be provided at corresponding positions on the first connecting rod structure 161 to achieve bidirectional sliding limiting; multiple second limiting structures can also be provided circumferentially on the first connecting rod structure 161, cooperating with the first limiting structures on the slider 191 to achieve rotation angle limiting.

[0162] By setting a first limiting structure and a second limiting structure that cooperate with each other on the slider 191 and the first connecting rod structure 161, mechanical limitation is achieved on the relative range of motion of the two, preventing the first connecting rod structure from exceeding the preset range of motion and avoiding damage to components or loss of control due to excessive movement. The first limiting structure and the second limiting structure provide physical blocking at extreme positions, serving as supplementary protection for electrical control. Even if the control system fails, the mechanical limiting can still ensure the safety of the mechanism, improving the reliability and safety of the display device 100.

[0163] In some embodiments, the support structure 120 includes a support surface on the side close to the flexible display screen 110, the support surface matching the bending shape of the flexible display screen 110 in a bent state; the support surface is a circular arc surface or an elliptical arc surface.

[0164] In this embodiment, the support structure 120 may include a support curved surface located on the side of the support structure 120 closest to the flexible display screen 110, opposite to the back surface of the flexible display screen 110. The support curved surface may be a curved portion of the support structure 120 for engaging or mating with the back surface structure of the flexible display screen 110. The support structure 120 may have a specific geometry. By providing the support curved surface, precise morphological support can be provided to the flexible display screen 110 when it is bent.

[0165] Matching can mean that the shape of the supporting curved surface corresponds to the bending shape of the flexible display screen 110 in a bent state, so that when the flexible display screen 110 is in a bent state, its back surface can fit against the supporting curved surface or maintain the same curvature. For example, when the flexible display screen 110 is bent into an arc shape, the supporting curved surface can be set as an arc surface with the same radius, so that the back surface of the flexible display screen 110 fits against the arc surface. When the flexible display screen 110 is bent into an elliptical arc shape, the supporting curved surface can be set as an elliptical arc surface with the same parameters.

[0166] When the flexible display screen 110 is bent into an arc shape, the supporting surface can be set as an arc surface with the same radius, so that the back of the flexible display screen 110 fits against the arc surface. For example, when the flexible display screen 110 is bent into an elliptical arc shape, the supporting surface can be set as an elliptical arc surface with the same parameters.

[0167] The supporting surface can be either a circular arc surface or an elliptical arc surface. A circular arc surface can be a surface with a constant radius of curvature, and its cross-section is a circular arc shape. An elliptical arc surface can be a surface with a radius of curvature varying along the arc length, and its cross-section is an elliptical arc shape. The specific type of supporting surface can also be matched according to the bending shape of the flexible display screen 110. For example, a circular arc surface is chosen when the flexible display screen 110 needs to be bent into a uniform arc shape. An elliptical arc surface is used when the flexible display screen 110 needs to be bent into an arc shape with a different degree of curvature in the middle than at both ends.

[0168] In this embodiment, by providing a support surface on the support structure 120 that matches the bending shape of the flexible display screen 110, precise shape support is provided for the flexible display screen 110 in the bending state. The support surface is a circular arc surface or an elliptical arc surface, so that the support surface can precisely correspond to the bending shape of the flexible display screen 110, ensuring that the back of the flexible display screen 110 is in uniform contact with the support surface during the bending process, avoiding local suspension or excessive compression.

[0169] In some embodiments, the axis of the power source 140 is set at an angle relative to the mounting reference plane of the display device 100, with the angle ranging from 3 degrees to 75 degrees.

[0170] In this embodiment, the output shaft of the power source 140 has a defined axial direction, which forms an angle of 3 to 75 degrees with the mounting reference plane of the actual device.

[0171] The axis of the power source 140 can be the center line direction of the output shaft of the power source 140. For a rotary power source, the axis is the rotation axis of the output circle. For a linear power source, the axis is the axial direction of the piston rod of the output shaft.

[0172] The mounting reference surface of the display device 100 can be a reference plane used for positioning and fixing the display device 100 when it is installed on a target carrier (such as a measuring instrument panel, center console, etc.). Specifically, the mounting reference surface can be the bottom surface, back surface, or other plane in contact with the target carrier of the display device 100 housing. For example, when the display device 100 is installed on a vehicle instrument panel, the mounting reference surface can be the bottom surface of the display device 100 housing, which is in contact with the mounting plane of the instrument panel. The mounting reference surface can be a planar structure with a defined normal direction, which facilitates angle measurement and positioning.

[0173] The axis of the power source 140 can be set at an angle relative to the mounting reference plane of the display device 100. This angled setting means that the axis of the power source 140 is neither parallel nor perpendicular to the mounting reference plane, but rather forms a certain tilt angle. This tilted arrangement allows for more flexible spatial layout of the power source 140 within the display device 100, allowing it to be configured according to the shape and size of the installation space. Specifically, the power source 140 can be tilted in a certain direction relative to the mounting reference plane, reducing the overall projected size of the power source 140 in the height or width direction, thereby adapting to different installation space constraints.

[0174] The included angle can range from 3 degrees to 75 degrees. The included angle can be the minimum angle formed between the axis of the power source 140 and the mounting reference plane, with a numerical range of 3 degrees to 75 degrees. Within this numerical range, a good balance can be achieved between space utilization and force transmission efficiency.

[0175] Specifically, the included angle can be 3 degrees, 5 degrees, 8 degrees, 10 degrees, 12 degrees, 15 degrees, 18 degrees, 20 degrees, 24 degrees, 25 degrees, 28 degrees, 30 degrees, 33 degrees, 35 degrees, 39 degrees, 40 degrees, 41 degrees, 45 degrees, 48 ​​degrees, 50 degrees, 55 degrees, 59 degrees, 60 degrees, 64 degrees, 65 degrees, 68 degrees, 70 degrees, 73 degrees, or 75 degrees, etc.

[0176] When the included angle is less than 3 degrees, the power source 140 is arranged close to parallel to the mounting reference plane. Although this can reduce the height of the display device 100, it may cause the power source 140 to interfere with other components or cause the force transmission direction to deviate significantly from the motion direction, thus affecting the transmission efficiency.

[0177] When the included angle is greater than 75 degrees, the power source 140 is arranged almost perpendicular to the mounting reference plane. Although the force transmission efficiency is high, it will increase the overall height of the display device 100, which is not conducive to its application in space-constrained scenarios.

[0178] By tilting the axis of the power source 140 relative to the mounting reference plane of the display device 100, a reasonable layout of the power source 140 and the linkage structure 160 can be achieved within a limited space. The tilted arrangement can effectively avoid interference between the power source 140 and other components, while optimizing the force transmission angle, so that the driving force output by the power source can be more effectively transmitted to the subsequent transmission components, reducing energy loss and improving transmission efficiency.

[0179] In some embodiments, the flexible display screen 110 includes: a display panel 111, including opposing display surfaces and non-display surfaces; and a graphic support structure disposed on one side of the non-display surface, including a graphic cutout area.

[0180] In this embodiment, the flexible display screen 110 may include a display panel 111 and a graphic support structure. The graphic support structure may include a graphic cutout area disposed on the non-display side for supporting the display panel 111.

[0181] The graphic support structure can be a support member with a specific pattern or structure, which is disposed on the non-display surface of the display panel, i.e., the back of the display panel 111. The graphic support structure can be attached to the non-display surface of the display panel 111 and fixedly connected by adhesive, pressing or other means. The function of the graphic support structure is to provide support force during the bending or flattening of the flexible display screen 110, and to prevent damage to the display panel 111 due to uneven stress.

[0182] Graphical support structures can include graphic hollow areas. Graphical hollow areas refer to through-holes, holes, or grooves created in the graphic support structure, whether penetrating or non-penetrating, arranged according to a predetermined pattern or design. The specific forms of graphic hollow areas can be varied. For example, a graphic hollow area can be a honeycomb-like hollow, where multiple hexagonal holes are arranged in an array to form a honeycomb-like structure, which maintains high strength while having low weight. Another example is a grid-like hollow, where crisscrossing ribs form a grid structure, and the grid shape can be rectangular, rhomboid, or circular. Yet another example is a strip-shaped hollow, where long strip-shaped holes are arranged along the bending direction, which enhances flexibility in the bending direction while maintaining rigidity perpendicular to the bending direction. Still another example is an irregularly shaped hollow, designed according to stress distribution, using smaller, higher-density hollows in areas of stress concentration and larger, lower-density hollows in areas of lower stress.

[0183] The materials used for graphic support structures can be varied. Specifically, graphic support structures can be made of metallic materials, such as stainless steel, spring steel, aluminum alloys, or titanium alloys, which possess high strength and good elastic recovery. Graphic support structures can also be made of plastic materials, such as polyimide, polycarbonate, or polypropylene. Furthermore, graphic support structures can be made of composite materials, such as carbon fiber reinforced composites or glass fiber reinforced composites, achieving lightweight while maintaining strength.

[0184] By setting a graphic support structure on the non-display side of the display panel 111, a reliable mechanical support is provided for the flexible display screen 110, effectively preventing damage to the display panel 111 caused by uneven force during bending.

[0185] In some embodiments, the first linkage structure 161 includes a plurality of first links 163 connected end to end.

[0186] In this embodiment, the first link structure 161 may include a plurality of first links 163, which may be connected head-to-head.

[0187] Multiple links can be two or more, and the specific number can be selected according to the size of the flexible display screen 110, the force requirements, and the spatial layout. For example, when it is necessary to extend the power transmission path or adjust the lever arm length, two first links 163 can be set; when a longer lever arm is required or it is necessary to bypass obstacles, three or more first links 163 can be set.

[0188] Multiple first links 163 are connected end-to-end, where the end-to-end connection can be achieved by connecting multiple first links 163 sequentially to form a series structure. Specifically, each first link 163 has a beginning and a end, with the end of one first link 163 connected to the beginning of the next first link 163, and so on, forming a one-dimensional chain structure. There are various ways to implement the end-to-end connection.

[0189] Specifically, multiple first links 163 can be connected by hinges, that is, two adjacent first links 163 can be connected by a pivot or pin to rotate relative to each other, which can provide good flexibility and enable the entire first link structure 161 to smoothly follow the predetermined trajectory, reducing jamming and stress concentration during the movement.

[0190] Multiple first links 163 can also be connected by a fixed connection method. For example, welding, screwing, or integral molding can be used to maintain a fixed included angle between adjacent first links 163. This connection method can be used in scenarios that require maintaining a specific angle and transmitting a large torque, thereby improving the rigidity and stability of the overall structure.

[0191] Multiple first links 163 can also be connected by an elastic connection, such as by a spring or an elastic hinge, so that adjacent first links 163 can maintain a certain connection strength while allowing a certain elastic deformation, which is suitable for scenarios that need to absorb impact or vibration.

[0192] Through a series connection structure, multiple first links 163 together form a relatively long force transmission path. The first end of the first link 163 is connected to the free end, the last end of the first link 163 is connected to the sliding part 152, and the middle first link 163 serves as a force transmission medium, transmitting power from the sliding part 152 to the free end, or from the free end to the sliding part 152.

[0193] By connecting multiple first links 163 end to end to form a series structure, the overall lever arm length can be extended, enabling a smaller driving force to generate a larger driving torque and improving driving efficiency. This is particularly suitable for applications requiring a larger bending moment.

[0194] One embodiment of this application provides a vehicle including a display device 100 as described above.

[0195] In this embodiment, the vehicle may include any of the aforementioned display devices 100. The vehicle can be of various types, such as passenger cars, commercial vehicles, and rail vehicles. The display device 100 can be installed on the dashboard, center console, seat back, etc., to meet the information display and entertainment interaction needs in different scenarios. The display device 100 has a flexible display screen 110 that can switch between a flat and a bent state. Specifically, it can be unfolded to provide navigation and vehicle information while driving, and folded away when parked or not in use, freeing up interior space and improving the riding experience. The display device 100 can be stably connected to the vehicle structure via fasteners, the power source 140 is powered by the vehicle's power supply, and the control system can work in conjunction with the vehicle's central control system. This display device 100 can adapt to various usage scenarios, save space, improve interior aesthetics and integration, remain stable and reliable under vehicle vibration conditions, and reduce the risk of screen damage.

[0196] It should be noted that some embodiments of this application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown to achieve the desired result.

[0197] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the above embodiments of this application, which are not provided in detail for the sake of brevity.

[0198] 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: Flexible display screen, including fixed end and free end; Support structure; It is disposed on the back of the flexible display screen; A drive mechanism, connected to the free end, is used to drive the free end to move in a direction away from or towards the support structure.

2. The display device according to claim 1, characterized in that, Also includes: A first fixing member is connected to the free end; the driving mechanism is connected to the free end through the first fixing member. The second fastener is connected to the fixed end.

3. The display device according to claim 2, characterized in that, The flexible display screen includes: a display panel, comprising opposing display surfaces and non-display surfaces; A cover plate is disposed on one side of the display surface; the first fixing member is connected to the cover plate.

4. The display device according to claim 3, characterized in that, The cover plate includes a first region and a second region surrounding the first region; the orthographic projection of the display panel on the cover plate overlaps with the first region; the first fastener is connected to the second region.

5. The display device according to claim 1, characterized in that, The drive mechanism includes: A power source, used to provide power; A constraint member and a linkage structure, wherein the linkage structure is connected to the free end and the power source; the constraint member is connected to the linkage structure, and the movement of the free end is restricted by the linkage structure.

6. The display device according to claim 5, characterized in that, The constraint member is provided with a sliding groove, and a sliding part is slidably connected in the sliding groove; The linkage structure includes a first linkage structure and a second linkage structure. One end of the first linkage structure is connected to the free end, and the other end of the first linkage structure is connected to the sliding part. One end of the second link structure is connected to the power source, and the other end of the second link structure is connected to the sliding part / the free end / the first link structure.

7. The display device according to claim 6, characterized in that, The display device further includes a slider and a third fixing member; the slider is rotatably fixed to the third fixing member and sleeved on the first connecting rod structure; the first connecting rod structure and the slider can move relative to each other.

8. The display device according to claim 6, characterized in that, The first linkage structure includes two first linkages spaced apart; one end of the first linkage is connected to the free end, and the other end of the first linkage is connected to the sliding part; The second linkage structure includes a second linkage and a third linkage; the second linkage connects two of the first linkages; one end of the third linkage is connected to the second linkage, and the other end of the third linkage is connected to the power source.

9. The display device according to claim 6, characterized in that, The first linkage structure includes at least one first linkage, one end of the first linkage is connected to the free end, and the other end of the first linkage is connected to the sliding part; The second linkage structure includes a fourth linkage; one end of the fourth linkage is connected to the free end, and the other end of the fourth linkage is connected to the power source.

10. The display device according to claim 6, characterized in that, The first linkage structure includes at least one first linkage, with a first end of the first linkage connected to the free end and a second end of the first linkage connected to the sliding part; The second linkage structure includes a fifth linkage, a sixth linkage, and a seventh linkage; one end of the fifth linkage is connected to the free end, the other end of the fifth linkage is connected to one end of the sixth linkage, and the other end of the sixth linkage is connected to the seventh linkage; one end of the seventh linkage is connected to the fifth linkage, and the other end of the seventh linkage is connected to the power source.

11. The display device according to claim 6, characterized in that, The first linkage structure includes at least one first linkage, one end of the first linkage is connected to the free end, and the other end of the first linkage is connected to the sliding part; The second linkage structure includes an eighth linkage; one end of the eighth linkage is connected to the sliding part; the other end of the eighth linkage is connected to the power source.

12. The display device according to claim 1, characterized in that, During the bending process of the flexible display screen, the flexible display screen includes an attachment part that fits with the support structure and a separation part that separates from the support structure; in the bent state, the flexible display screen is completely fitted with the support structure.

13. The display device according to claim 6, characterized in that, The display device further includes a telescopic rod; the power source includes a motor or a cylinder; the power source is connected to the telescopic rod; the telescopic rod is connected to the second connecting rod structure.

14. The display device according to claim 13, characterized in that, The second linkage structure is connected to the telescopic rod at a position close to / away from the power source.

15. The display device according to claim 7, characterized in that, The slider includes a first limiting structure; the first connecting rod structure includes a second limiting structure; the first limiting structure and the second limiting structure are arranged opposite to each other; the first limiting structure and the second limiting structure cooperate with each other to limit the relative range of motion between the slider and the first connecting rod structure during the movement of the first connecting rod structure relative to the slider.

16. The display device according to claim 1, characterized in that, The support structure includes a support curved surface on one side close to the flexible display screen, and the support curved surface matches the bending shape of the flexible display screen in the bent state; the support curved surface is a circular arc surface or an elliptical arc surface.

17. The display device according to claim 5, characterized in that, The axis of the power source is set at an angle relative to the mounting reference plane of the display device, and the angle ranges from 3 degrees to 75 degrees.

18. The display device according to claim 1, characterized in that, The flexible display screen includes: Display panel, including opposing display surfaces and non-display surfaces; A graphical support structure is disposed on one side of the non-display surface, including a graphical cutout area.

19. The display device according to claim 6, characterized in that, The first linkage structure includes multiple first linkages, which are connected end to end.

20. A vehicle, characterized in that, Includes the display device as described in any one of claims 1 to 19 above.

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