A multi-section folding-based telescopic display terminal
Patent Information
- Application Number
- CN202521702648.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-08-11
AI Technical Summary
[0003]为缓解上述矛盾，双折叠、三折叠等多折叠屏幕设备应运而生(如华为技术有限公司专利CN118677973A公开的三折叠电子设备，其通过两个折叠装置连接三个机体，实现多屏幕的折叠功能，但该现有技术折叠后三个机体呈层叠状态，整体厚度约为单机体厚度的三倍，便携性较差)；其核心设计逻辑在于通过折叠实现“大屏展开以满足办公、娱乐等场景的使用需求，小屏收纳以缩小携带体积”；但现有折叠屏存在一个关键缺陷：折叠后设备厚度会随着折叠次数增加而显著叠加(例如折叠一次后，厚度近似为单屏状态下的两倍)，而难以满足用户对便携性的核心诉求
Smart Images
Figure CN224803540U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of display device technology, and in particular to a foldable and retractable display terminal structure. Specifically, it is a mobile terminal structure that achieves a basically stable overall thickness through a multi-segment folding and retracting design, and is suitable for portable electronic devices such as mobile phones. [Background Technology]
[0002] With the development of smartphones and other smart devices, users' demand for screen size is increasing (for example, a large screen is needed for processing documents in office scenarios, and a large screen is needed to enhance the experience in entertainment scenarios such as games and videos), while the demand for portability has not decreased (for example, it needs to be compact for daily carrying).
[0003] To alleviate the aforementioned contradictions, multi-folding screen devices such as dual-folding and triple-folding have emerged (e.g., the triple-folding electronic device disclosed in Huawei Technologies Co., Ltd. patent CN118677973A, which connects three bodies through two folding devices to achieve the folding function of multiple screens; however, after folding, the three bodies are stacked, and the overall thickness is about three times the thickness of a single body, resulting in poor portability). The core design logic is to achieve "large screen unfolding to meet the usage needs of office, entertainment and other scenarios, and small screen storage to reduce carrying volume" through folding. However, existing folding screens have a key drawback: the thickness of the device increases significantly with the number of folds (for example, after one fold, the thickness is approximately twice that of the single-screen state), making it difficult to meet users' core demand for portability.
[0004] Furthermore, existing foldable screen designs tend to focus on "larger screens when unfolded to suit office scenarios," rather than "smaller screens when folded to improve portability." To address these issues, this invention aims to provide a new folding structure: building upon existing multi-folding technologies where "adjacent components are connected by folding components," this design optimizes the structural design of the folding components to ensure that the overall thickness of the device remains essentially unchanged before and after folding, thus effectively addressing the core issue of "smaller screens when folded to improve portability." [Utility Model Content]
[0005] This invention proposes a telescopic display terminal based on multi-segment folding, which can switch the display terminal from the unfolded state to the retracted state with at least one retraction operation, reducing the length of the display terminal, and the overall thickness remains basically stable before and after stretching and folding, thereby improving the portability of the display terminal.
[0006] This utility model proposes a telescopic display terminal based on multi-segment folding, which includes at least a first body, a second body, and a telescopic folding component; wherein, the telescopic folding component is connected between the first body and the second body and is used to drive the two bodies to extend and retract relative to each other.
[0007] The telescopic folding assembly includes at least a first folding device, a second folding device, and a third folding device, wherein the first folding device and the second folding device are connected by a first middle frame, and the second folding device and the third folding device are connected by a second middle frame.
[0008] In one possible implementation, a portion of the first folding device of the telescopic folding assembly is embedded in the first body, and a portion of the third folding device is embedded in the second body.
[0009] In the telescopic folding assembly, one end of the first folding device (the end not embedded in the first body) is rotatably connected to one end of the second folding device through the first middle frame; one end of the third folding device (the end not embedded in the second body) is rotatably connected to the other end of the second folding device through the second middle frame.
[0010] That is, the first body and the first folding device are foldably connected; the first folding device and the third folding device are driven to fold through the second folding device; the third folding device is foldably connected to the second body; the first folding device, the second folding device and the third folding device form a multi-segment structure that is linked in sequence, and together constitute the main body of the foldable telescopic folding component.
[0011] Furthermore, the first folding device and the third folding device are respectively connected to the circuits of the two bodies through the first middle frame and the second middle frame; the other side surface of the non-embedded part of the first folding device and the third folding device is provided with a screen and is linked with the second folding device: when stretched, it extends in the same direction along the plane where the screen is located, and when contracted, it folds in the vertical direction of the plane where the screen is located, ensuring that the display and operation are not affected throughout the process.
[0012] When retracted to its limit, the surface screens of the first folding device and the third folding device fold together and fit together, and are stored together with the second folding device between the first and second bodies.
[0013] When stretched to its limit, the three elements move in a straight line along the plane of the screen, and the surface screens are seamlessly connected to form a continuous display area.
[0014] Furthermore, the number of display terminal bodies can be expanded to three, with two of the telescopic folding components configured accordingly (defined as the first telescopic folding component and the second telescopic folding component, respectively).
[0015] In this assembly, a portion of the first folding device of the first telescopic folding component is embedded in the first body, and a portion of the third folding device is embedded in the second body; in the second telescopic folding component, a portion of the first folding device is embedded in the second body, and a portion of the third folding device is embedded in the third body.
[0016] The structure and folding or stretching logic of the two telescopic folding components are the same as described above: each folding device has a screen on its non-embedded surface and is connected to the corresponding body circuit through the middle frame; when stretched, the two telescopic folding components move in a straight line along the plane where the screen is located, the three bodies are arranged in sequence, and the surface screens are seamlessly connected to form a continuous display area; when retracted, the two telescopic folding components fold in the direction perpendicular to the screen, and the three bodies come closer together.
[0017] Similarly, when the display terminal includes N bodies (N≥2, and N is an integer), (N-1) of the aforementioned telescopic folding components are configured accordingly; each telescopic folding component is connected to two adjacent bodies in sequence in the manner described above, and its structure, embedding relationship and folding or stretching logic are consistent with the first and second cases, together forming a multi-segment folding telescopic display terminal that can be flexibly telescopically folded.
[0018] Furthermore, the dimensions of each of the aforementioned adjacent units can be set as needed (including but not limited to: equal, unequal, or matched according to a specific ratio); correspondingly, the position of the telescopic folding assembly connecting the two adjacent units at the junction of the two units can be flexibly adjusted according to actual needs (such as appearance design, convenience, etc.). It can be biased towards the smaller unit, located in the middle of the two units, or biased towards the larger unit, as long as it meets the requirement that "the telescopic folding assembly is connected to the corresponding edge of the two units (the corresponding edge must meet the directional adaptation, such as the lower edge of the first unit corresponding to the upper edge of the second unit), and can complete the stretching or retracting action with the two units". [Attached Image Description]
[0019] Figure 1 This is a horizontal cross-sectional schematic diagram of two fuselages in a partially telescopic and folded state. The partial structure of the telescopic and folding assembly is referenced from Huawei Technologies Co., Ltd. patent CN118677973A. Figure 7 The folding device design, optimized and expanded, demonstrates the layout of the two bodies and the connection relationship of the components in this state.
[0020] Figure 2 for Figure 1 The enlarged schematic diagram of the telescopic folding component shows the rotational coordination of each folding device, the tilting state of the middle frame, and the transition shape of the screen when the two bodies are in a partially telescopic folding state. It can also be used to understand the structure of the corresponding components in the three-body example.
[0021] Figure 3 This is a tilted side view of the two units in their fully deployed state. The telescopic folding assembly is retained. Figure 1 The design basis illustrates the overall structure and connection relationships in this state.
[0022] Figure 4 for Figure 3 The enlarged schematic diagram of the telescopic folding component shows the details of the straight linkage of the first, second, and third folding devices when the two bodies are in the fully unfolded state, as well as the fitting relationship between the middle frame and each device. It can also be used to understand the structure of the corresponding components in the three-body example.
[0023] Figure 5 This is a side view of the two bodies in their fully retracted state, showing the telescopic folding assembly. Figure 1 The design basis demonstrates the folding and storage structure and the fit of the body in this state.
[0024] Figure 6 for Figure 5 The enlarged schematic diagram of the telescopic folding component shows the fitting relationship of the folding device when the two bodies are in the fully retracted state, the storage position of the second folding device, and the arc transition details of the screen. It can also be used to understand the structure of the corresponding components in the three-body example.
[0025] Figure 7 This is a side view of the three units in their fully deployed state, showing the telescopic and folding components. Figure 1 The design basis illustrates the overall structure and screen connection relationships in this state.
[0026] Figure 8 This is a horizontal cross-sectional diagram of the three bodies in a partially telescopic and folded state. The telescopic and folding components are reused. Figure 1 The design basis demonstrates the layout of the three bodies and the connection relationship of the components.
[0027] Figure 9 This is a side view of the three units in their fully retracted state, showing the telescopic and folding components. Figure 1 The design basis demonstrates the folding and storage structure and the fit of the body in this state.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10-First Machine
[0030] 11-First Unit Screen
[0031] 21-Second Unit
[0032] 22-Second Unit Screen
[0033] 32-Third Unit
[0034] 33-Third Unit Screen
[0035] 12-First folding device (embedded part) of the first folding assembly
[0036] 13-First folding device (non-embedded part) of the first folding assembly
[0037] 14 - First folding device (screen) of the first folding assembly
[0038] 15 - First middle frame of the first folding assembly
[0039] 16 - Second middle frame of the first folding assembly
[0040] 17-Second folding device of the first folding assembly
[0041] 18 - The third folding device (screen) of the first folding assembly.
[0042] 19 - The third folding device (non-embedded part) of the first folding assembly
[0043] 20 - The third folding device (embedded part) of the first folding assembly
[0044] 23- The first folding device (embedded part) of the second folding assembly
[0045] 24 - First folding device (non-embedded part) of the second folding assembly
[0046] 25 - First folding device (screen) of the second folding assembly
[0047] 26 - First middle frame of the second folding component
[0048] 27 - Second middle frame of the second folding assembly
[0049] 28 - Second folding assembly, second folding device
[0050] 29 - The third folding device (screen) of the second folding assembly.
[0051] 30 - The third folding device (non-embedded part) of the second folding assembly
[0052] 31-The third folding device (embedded part) of the second folding assembly
Detailed Implementation Methods
[0053] The following is in conjunction with the appendix Figure 1-6 This utility model will be described in further detail.
[0054] Among them, the “base direction for the arrangement of the aircraft” is defined as: with the plane where the aircraft screen is located as a reference, the straight line extending along when multiple aircraft are unfolded (this direction maintains the base attribute during the extension and folding process, that is, the extension and folding action is parallel to this direction, and the arrangement trend extends along this direction).
[0055] This utility model discloses a retractable display terminal based on multi-segment folding, comprising a body, a retractable folding assembly, and screens. The body includes a first body 10, a second body 21, and a third body 32, with corresponding screens being a first body screen 11, a second body screen 22, and a third body screen 33. The retractable folding assembly includes a first folding assembly (including components 12-20) and a second folding assembly (including components 23-31). The first folding assembly connects the first body 10 and the second body 21, and the second folding assembly connects the second body 21 and the third body 32. The partial structure of each component is referenced in Huawei Technologies Co., Ltd. patent CN118677973A. Figure 7 The folding device design has been optimized and expanded.
[0056] Based on the above structure, this display terminal can realize telescopic and folding actions in two typical scenarios: two-body and three-body configurations.
[0057] For a two-body scenario, its extension and folding process corresponds to Figure 1 (Partially expandable and foldable) Figure 3 (Fully expanded) Figure 5 (Fully retracted), details of the telescopic and folding components in each state can be found in the corresponding enlarged images. Figure 2 , 4 6).
[0058] Fully unfolded state correspondence Figure 3 At this time, the first body 10 and the second body 21 are arranged in a straight line through the first folding component, and the telescopic folding component is in its longest state; the position of the telescopic folding component can be flexibly adjusted according to the size of the two bodies (such as leaning towards the smaller body, centering or leaning towards the larger body), and in this example, it is located in the center at the connection between the two bodies, and is equidistant from the edges of the two bodies;
[0059] The first folding device (12-14) and the third folding device (18-20) of the first folding assembly are both in the unfolded state, forming a flat linkage structure together with the second folding device 17; the first middle frame 15 and the second middle frame 16 are attached to both sides of the second folding device 17, and remain flat with the assembly. Figure 4 The docking status of each folding device can be clearly observed. The middle frame fits the device without gaps. The screens (14, 18) are seamlessly connected with the first body screen 11 and the second body screen 22 to form a continuous display surface.
[0060] Partial telescopic and folding states correspond to Figure 1 When an external force is applied to the first body 10 and the second body 21 (such as holding one body to move the other body, pulling them apart when stretched to the sides, and squeezing them together when pressed), the two bodies move relative to each other, causing the telescopic folding components between them to be passively deformed: the folding direction is always perpendicular to the plane of the screen and the relative position with the edges of the two bodies remains stable.
[0061] The first folding device (12-14) 12 and the third folding device (18-20) 18 move with the relative movement of the two bodies, driving 13, 14, 19, and 20 to rotate synchronously. The second folding device 17 coordinates the synchronous movement of each component, causing the first middle frame 15 and the second middle frame 16 to separate and tilt inward during the movement. Figure 2 The tilt angle of the middle frame and the movement trajectory of the folding device can be clearly observed in the middle, and the two bodies and their corresponding first body screen 11 and second body screen 22 form an adaptive angle in the relative movement;
[0062] When stretched to both sides, the telescopic folding assembly elongates along the reference direction of the body layout with deformation. The first body 10 and the second body 21 maintain a horizontal posture without angular change, and the first body screen 11 and the second body screen 22 are connected with the first folding device screen 14 and the third folding device screen 18. When squeezed in opposite directions, the dimension in this direction (reference direction of body layout) shortens with deformation. The first body 10 and the second body 21 only undergo relative horizontal movement (without angular change), and the first folding device screen 14 and the third folding device screen 18 naturally fold and bend with the deformation of the assembly. The first body screen 11 and the second body screen 22 are connected and cooperated with the screen 14 and the screen 18 respectively, and the movements of each structure are adapted without interference.
[0063] The state of complete contraction corresponds to Figure 5 When the first body 10 and the second body 21 are continuously subjected to opposing compressive forces, the two bodies move closer together, causing the telescopic folding assembly to passively retract to its limit; the second folding device 17 coordinates with the first folding device (12-14), the third folding device (18-20), the first middle frame 15, and the second middle frame 16 to fold symmetrically inward with it as the folding center (the axis of symmetry of the symmetrical folding is distributed along it), and the telescopic folding assembly reaches its shortest dimension along the body arrangement reference direction; during the retraction process, the telescopic folding assembly located in the center folds along the edge position of the initial connection and is finally stored in the middle area between the two bodies;
[0064] At this time, the first body 10 and the second body 21 are arranged in a stacked configuration from a side view, separated by a retracted telescopic folding assembly, forming a "body-assembly-body" structure; the screen shape changes synchronously with folding: the first body screen 11 and the second body screen 22 both extend along the body arrangement reference direction, wherein the first body screen 11 is connected to the first folding device screen 14, and the second body screen 22 is connected to the third folding device screen 18; during folding, the two folding device screens (14, 18) gradually bend as the assembly retracts, and their transition part takes an arc shape; when retracted to the limit, the arc shape is fixed ( Figure 6The inner sides of the screens of the two folding devices are clearly visible in the image (the storage position of the second folding device 17). The folded parts of the screens of the two folding devices (near the inner side of the components) are face to face and fit together to achieve the shrinkage limit. All components are stored in the space after the components are folded, and the overall volume is reduced by the shrinkage of the components.
[0065] For a three-body scenario, its extension and folding process corresponds to Figure 7 (Fully expanded) Figure 8 (Partially expandable and foldable) Figure 9 (Fully retracted), details of the telescopic and folding components in each state can be found in the corresponding enlarged images of the two mecha scenes. Figure 2 , 4 6).
[0066] Fully unfolded state correspondence Figure 7 At this time, the first body 10, the second body 21, and the third body 32 are arranged in a straight line through two sets of telescopic folding components. The two sets of components are in the same state and are consistent with the previous description—both are in their longest state. Among them, the first folding component is connected to the lower edge of the first body 10 and the upper edge of the second body 21, and is positioned biased towards the first body 10; the second folding component is connected to the lower edge of the second body 21 and the upper edge of the third body 32, and is positioned biased towards the third body 32.
[0067] The first folding device (12-14, 23-25) and the third folding device (18-20, 29-31) are both in the unfolded state, each forming a straight linkage structure with the corresponding second folding device (17, 28). The first middle frame (15, 26) and the second middle frame (16, 27) are respectively attached to the sides of the corresponding second folding device, maintaining a straight shape with the components (the details are similar to...). Figure 4 Consistent);
[0068] The connection between the first body screen 11 and the second body screen 22 is the same as described above. The second body screen 22 is simultaneously connected to the first folding device screen 25 of the second group of components, and the third body screen 33 is connected to the third folding device screen 29. All screens are seamlessly connected, and each folding device screen remains flat as the components are straightened, forming a continuous display surface together, and the overall structure is stable.
[0069] Partial telescopic and folding states correspond to Figure 8 When an external force is applied to the first body 10, the second body 21, and the third body 32 (such as holding any body to drive the other body to move, pulling them apart when stretched to the sides, and squeezing them together when squeezed), the three bodies move relative to each other, causing the two sets of telescopic and folding components to deform synchronously and passively. The two sets of components are in the same state and are consistent with the deformation logic of the single set of components described above.
[0070] The first folding device (12-14, 23-25) 12, 23 and the third folding device (18-20, 29-31) 18, 29 move relative to each other with the corresponding body. The second folding device (17, 28) coordinates the synchronous movement of each component, causing the first middle frame (15, 26) and the second middle frame (16, 27) to separate within each group and tilt inward. Figure 2 The tilt angle of the middle frame and the movement trajectory of the folding device can be clearly observed.
[0071] The first folding assembly, with the second folding device 17 as the folding center (the axis of symmetry for symmetrical folding is distributed along it), causes the connecting portion between the lower edge of the first body 10 and the upper edge of the second body 21 to deform synchronously; the second folding assembly, with the second folding device 28 as the folding center (the axis of symmetry for symmetrical folding is distributed along it), causes the connecting portion between the lower edge of the second body 21 and the upper edge of the third body 32 to deform synchronously. The staggered distribution of the two sets of components ensures no interference when the three bodies form an adaptive angle; the three bodies form an adaptive angle during relative motion, wherein:
[0072] When stretched to both sides, the dimensions of the two sets of components along the reference direction of the body layout are stretched with deformation. The connection between the first body screen 11, the first telescopic folding component and the second body screen 22 is the same as before. The second body screen 22 is simultaneously connected to the first folding device screen 25 of the second telescopic folding component, and the third body screen 33 is connected to the third folding device screen 29. All screens remain connected.
[0073] When the components are pressed in opposite directions, the dimensions of the two sets of components along the reference direction of the body layout shorten with deformation. The first body screen 11, the second body screen 22, and the third body screen 33 move relative to each other along the reference direction of the body layout, and bend in coordination with the corresponding folding device screens (14, 18, 25, 29) (the folding device screens bend naturally with the deformation of the components). The movements of each structure are adapted without interference.
[0074] The state of complete contraction corresponds to Figure 9 When opposing compressive forces are applied to the first body 10 and the third body 32, these forces can be transmitted to the second body 21, causing the first body 10 and the second body 21, and the second body 21 and the third body 32, to move in opposite directions. This causes the two sets of telescopic folding components to passively retract to their limits simultaneously. The retraction logic of the two sets of components is the same as that of the single set of components described above.
[0075] In the first folding assembly, the second folding device 17 coordinates the first folding device (12-14), the third folding device (18-20), and the middle frame (15, 16) of the first folding assembly to fold symmetrically inward with it as the folding center (the axis of symmetry of the symmetrical folding is distributed along it); in the second folding assembly, the second folding device 28 coordinates the first folding device (23-25), the third folding device (29-31), and the middle frame (26, 27) of the second folding assembly to fold symmetrically inward with it as the folding center (the axis of symmetry of the symmetrical folding is distributed along it), and finally both sets of components form a compact shape, and the dimensions along the body layout reference direction are both minimized;
[0076] During the retraction process, the first folding component is stored along the lower edge of the first body 10 and the upper edge of the second body 21, and the second folding component is stored along the lower edge of the second body 21 and the upper edge of the third body 32. The two sets of components do not interfere with each other due to their staggered distribution and are stored in the upper and lower spaces between the corresponding bodies respectively.
[0077] At this time, the three mechs are arranged in a stacked manner from a side view: the first mech 10 and the second mech 21 are separated by the retracted first folding component, and the second mech 21 and the third mech 32 are separated by the retracted second folding component, forming a stacked structure of "mech-component-mech-component-mech".
[0078] The screen shape changes synchronously with folding: the first body screen 11 is connected to the first folding device screen 14 (first group); the second body screen 22 is connected to the third folding device screen 18 (first group) and the first folding device screen 25 (second group); the third body screen 33 is connected to the third folding device screen 29 (second group). During folding, the transition parts of each folding device screen (14, 18, 25, 29) gradually bend and take on an arc shape as the components shrink; when folded to the limit, the arc shape is fixed. Figure 6 The inner sides of the screens of the two folding devices are clearly visible, as well as the storage position of the second folding device (17, 28). The main bodies of the folding device screens (14, 18) of the first folding assembly and the folding device screens (25, 29) of the second folding assembly are attached face to face. All folding devices, the middle frame, and other components are stored in the space after the corresponding components are stored. The overall volume is reduced by shrinking the two sets of components.
[0079] The technical solution of this utility model is not only applicable to two-unit and three-unit scenarios, but can also be extended to display terminals containing N units (N≥2, and N is an integer) according to actual usage needs. Its core structure and action logic remain consistent, as detailed below:
[0080] For a display terminal containing N bodies, (N-1) telescopic folding components are configured accordingly. The structure of each component (including the first folding device, the second folding device, the third folding device, the first middle frame, and the second middle frame) is exactly the same as that of the components in the two-body and three-body configurations, forming an extended structure only through connection relationships:
[0081] The first telescopic folding assembly connects the first and second mechs.
[0082] The second telescopic folding assembly connects the second and third mechs.
[0083] Similarly, the (N-1)th telescopic folding component connects the (N-1)th body to the Nth body, forming a series arrangement of "body 1 - component 1 - body 2 - component 2 - ... - body N";
[0084] The operating logic of the above-mentioned extended structure is the same as that of the two-body and three-body structures: when fully extended, all components are arranged in a straight line along the base direction of the body arrangement, and N bodies are linked in sequence, with the screen seamlessly connected as a continuous display area; when partially extended, any adjacent body can be subjected to force to cause the corresponding component to deform, or the force can be transmitted to multiple components through the middle body to achieve local or overall extension and contraction; when fully retracted, opposing forces are applied to any two ends of the body, and the force is transmitted to the middle body in sequence, causing all components to fold synchronously in the vertical direction of the screen, and finally the N bodies are arranged in a stacked arrangement, separated by the (N-1) components after retraction, to achieve overall volume reduction.
[0085] In scenarios with any number of units as described above, the connection positions of the telescopic and folding components can be flexibly set according to actual needs. The specific adjustment method must meet the following conditions:
[0086] The connection points of each telescopic and folding component must correspond and be linked with the edges of the adjacent two bodies, as follows:
[0087] The first telescopic folding assembly connects one side edge of the first body to the corresponding edge of the second body (e.g., the lower edge of the first body corresponds to the upper edge of the second body), and the second telescopic folding assembly connects the other side edge of the second body to the corresponding edge of the third body (e.g., the lower edge of the second body corresponds to the upper edge of the third body).
[0088] Similarly, the (N-1)th telescopic folding component connects the corresponding edge of the (N-1)th body to the fitting edge of the nth body, and the connecting edges of adjacent components on the middle body are distributed on opposite sides;
[0089] Among them, the "corresponding edges" of two adjacent units must meet the orientation compatibility (such as the correspondence between the "upper edge and the lower edge" mentioned above) to ensure that the components can drive the two units to move in a straight line or fold symmetrically.
[0090] When there is a difference in size between two adjacent units, the component position can be biased towards the side of the smaller unit (such as in the three-unit scenario above, where the first folding component is biased towards the lower edge of the smaller first unit and the second folding component is biased towards the upper edge of the smaller third unit), or located in the middle of the corresponding edges of the two units (such as in the two-unit scenario above, where the telescopic folding components are connected in the middle), or the component position can be biased towards the side of the larger unit to adapt to different size combinations;
[0091] In scenarios with three or more mechs, adjacent components connected to the middle mech must be located on different side edges (e.g., the upper edge of the second mech connects to the first telescopic folding component, and the lower edge connects to the second telescopic folding component). This offset distribution on opposite sides prevents the components from interfering with each other during telescopic folding.
[0092] All component connections must not avoid the functional structure of the device (such as buttons, interfaces, etc.) and must not change the core action logic of "stretching along the screen plane and folding vertically to the screen when contracting", ensuring that position adjustments only adapt to the layout and do not affect the linkage function.
[0093] Although embodiments of the present invention have been described above, they are merely illustrative and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can adjust the embodiments without departing from the core idea of the present invention (i.e., "achieving basic thickness stability through multi-segment folding and telescopic extension"), including but not limited to: increasing or decreasing the number of components, adjusting the connection positions of the telescopic folding components, and optimizing the shape of the folding device. Any adjustments that do not change the core features of "adjustable length, basically stable thickness, and symmetrical folding of components" fall within the scope of protection of the present invention.
[0094] In the description of this utility model, the terms "connection," "linkage," and "embedded" should be interpreted broadly: "connection" includes direct fixing or indirect cooperation through intermediate components; "linkage" refers to the cooperative relationship between components that change synchronously with each movement; and "embedded" refers to an assembly state in which part of the structure is inside another component. Those skilled in the art can understand the specific meaning of the above terms in conjunction with specific implementation scenarios. The terms "first," "second," and "third" are only used to distinguish different folding devices or bodies and do not indicate order or importance.
[0095] Finally, it should be noted that the above embodiments are only used to illustrate the concept of this utility model, and not to limit it; any adjustments to the specific form of the embodiments of this utility model or equivalent substitutions of some features, without deviating from the core design of the "multi-segment folding and telescopic display terminal", still fall within the protection scope of this utility model.
Claims
1. A retractable display terminal based on multi-segment folding, characterized in that, The device includes multiple bodies and telescopic folding components connecting adjacent bodies. These components can switch between two states: when unfolded, the components are arranged in a straight line along the body's layout reference direction, causing the bodies to be arranged sequentially in a straight line, maximizing the overall length of the display terminal; when retracted, the components fold in a direction perpendicular to the body screen, causing the bodies to move closer together, minimizing the overall length of the display terminal. During the switching process, the overall thickness of the display terminal remains relatively stable and does not increase with the number of folds. When the number of bodies is N (N≥2, and N is an integer), the number of telescopic folding components is (N-1). The larger the value of N, the greater the length difference between the unfolded and retracted states of the display terminal. The unfolding direction of the telescopic folding components is parallel to the body screen, and the retracting direction is perpendicular to the body screen, and the switching process does not affect the display.
2. The retractable display terminal based on multi-segment folding according to claim 1, characterized in that, The telescopic folding assembly includes a first folding device, a second folding device, and a third folding device connected in sequence. Part of the first folding device is embedded in one side of the body, and part of the third folding device is embedded in the other side of the body. The first folding device is connected to the second folding device through a first middle frame, and the third folding device is connected to the second folding device through a second middle frame. The first middle frame is built into the first folding device, and the second middle frame is built into the third folding device. The first folding device and the third folding device are symmetrically distributed about the straight line where the second folding device is located as the axis of symmetry. When retracting, they fold synchronously along the axis of symmetry in the vertical direction of the screen. The second folding device moves synchronously with both of them. Finally, the first folding device, the second folding device, and the third folding device are stored together between the two bodies.
3. The retractable display terminal based on multi-segment folding according to claim 2, characterized in that, The non-embedded portions of the first and third folding devices are provided with display areas and are connected to the display areas of the corresponding bodies. When unfolded, the display areas are seamlessly connected with the display areas of the bodies to form a continuous display area. When retracted, the display areas of the first and third folding devices are folded together with the components and stored between the two bodies together with the second folding device, without affecting the display function.
4. The retractable display terminal based on multi-segment folding according to claim 1, characterized in that, The dimensions of adjacent units can be set as needed, and the position of the telescopic and folding components at the junction of the two units can be flexibly adjusted. Even after adjustment, the action switching of "expanding along the reference direction / retracting in the vertical direction of the screen" can still be achieved.
5. The retractable display terminal based on multi-segment folding according to claim 1, characterized in that, When the number of units N≥3 (N is an integer), each telescopic and folding component connecting the intermediate unit is set to a different side edge of the intermediate unit. Spatial misalignment is achieved through the opposite side distribution, thereby avoiding mutual interference of components when switching states.