Support structure, display panel and electronic equipment
By incorporating a support sheet with internal stress into the support structure, the problem of the flexible display module rebounding and unfolding after being rolled up is solved, achieving stable maintenance of the rolled-up and unfolded states and improving storage and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
- Filing Date
- 2022-09-09
- Publication Date
- 2026-05-26
AI Technical Summary
Flexible display modules cannot maintain their folded state after being rolled up; they tend to bounce back and unfold, affecting the storage effect.
Design a support structure comprising a support sheet having a first internal stress, wherein the support sheet is curled toward a first surface along a first extension direction in a curled state and remains curled; and in an unfolded state, the support sheet is curled toward a second surface along a second extension direction and remains unfolded.
It effectively maintains the curled or unfolded state of the flexible display module, preventing rebound and improving storage and portability.
Smart Images
Figure CN115410486B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and more specifically, to a support structure, a display panel, and an electronic device. Background Technology
[0002] With the rapid development of flexible display technology, the application of flexible display modules is becoming increasingly widespread. Among them, rollable screens are a technology that enables flexible display modules to be rolled up and stored, effectively reducing the volume of the flexible display module in its stored state and improving portability. However, flexible display modules themselves have certain stress and cannot roll up and tighten on their own without external force. Therefore, they are prone to rebounding and unfolding after being rolled up, affecting the storage effect. Summary of the Invention
[0003] To overcome the technical problems mentioned in the above background, this application provides a support structure for supporting a flexible display module. The support structure includes a support body, which includes a first surface and a second surface opposite to each other. The flexible display module is disposed on one side of the first surface or one side of the second surface and covers one surface of the support structure. The support body includes at least one support piece, which includes a first extending direction and a second extending direction that are perpendicular to each other.
[0004] The support structure includes a curled state, and the support sheet includes a first internal stress. When the support structure is in the curled state, the first internal stress drives the support sheet to curl toward the first surface along the first extension direction, so as to drive the support structure to maintain the curled state.
[0005] In one possible implementation, the support structure further includes an unfolded state, and the support sheet further includes a second internal stress. When the support structure is in the unfolded state, the second internal stress drives each of the support sheets to curl relatively independently toward the second surface along the second extension direction, so as to drive the support structure to maintain the unfolded state.
[0006] Preferably, when the support structure is in the unfolded state, the support sheet curls toward the second surface along the second extending direction;
[0007] Preferably, the length of the support sheet in the first extending direction is greater than its length in the second extending direction.
[0008] In one possible implementation, the support body includes a groove-shaped opening that extends through the support body;
[0009] The support piece is located in the groove opening; in the first extending direction, the support piece includes a first end and a second end, the first end and the second end being respectively connected to the inner wall of the groove opening; in the second extending direction, there is a first gap between the support piece and the inner wall of the groove opening.
[0010] In one possible implementation, an opening is provided at the middle position of the first end and / or the second end.
[0011] In one possible implementation, the first end and / or the second end are provided with openings on both sides of the support piece along the axis of symmetry of the first extension direction.
[0012] In one possible implementation, the thickness of the support sheet is less than the depth of the slotted opening support structure;
[0013] Preferably, after the support sheet is rolled toward the second surface, the support sheet does not extend beyond the groove opening.
[0014] In one possible implementation, the support body includes a plurality of support sheet rows, each of the support sheet rows including a plurality of support sheets arranged along the second extending direction, and the plurality of support sheet rows arranged along the first extending direction;
[0015] Preferably, there is a second gap between two adjacent support pieces in the same row of support pieces, and the width of the second gap is greater than the width of one of the support pieces in the second extending direction;
[0016] At least some of the support pieces in the support piece rows are located at least partially between two adjacent support pieces in another adjacent support piece row.
[0017] In one possible implementation, the support structure further includes an elastic support layer located on the first surface or the second surface of the support body; the elastic support layer is bonded to the support body via an adhesive layer.
[0018] Preferably, the flexible display module is located on the side of the elastic support layer opposite to the support sheet.
[0019] Another objective of this application is to provide a display panel, which includes the support structure provided in this application and a display module located on the support structure.
[0020] Another object of this application is to provide an electronic device, which includes the display panel provided in this application.
[0021] Compared with the prior art, this application has the following beneficial effects:
[0022] The support structure, display panel, and electronic device provided in this application, by incorporating a support sheet with a first internal stress in the support structure, allow the support sheet to curl toward the first surface along the first extension direction when the support structure is in a curled state, thereby maintaining the curled state of the support structure. Thus, the support structure can provide a supporting force to maintain the curled state of the flexible display module, thereby preventing the display module from rebounding and unfolding when in a curled state. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 A schematic diagram illustrating the curled state of the support structure provided in the embodiments of this application;
[0025] Figure 2 A schematic diagram showing the unfolded state of the support structure provided in the embodiments of this application;
[0026] Figure 3 One of the schematic diagrams of the support sheet provided in the embodiments of this application;
[0027] Figure 4 A second schematic diagram of the support sheet provided in an embodiment of this application;
[0028] Figure 5 One of the schematic diagrams of the support structure provided in the embodiments of this application;
[0029] Figure 6 A second schematic diagram of the support structure provided in the embodiments of this application;
[0030] Figure 7 The third schematic diagram of the support structure provided in the embodiments of this application;
[0031] Figure 8 Fourth schematic diagram of the support structure provided in the embodiments of this application;
[0032] Figure 9 Fifth schematic diagram of the support structure provided in the embodiments of this application;
[0033] Figure 10 Sixth schematic diagram of the support structure provided in the embodiments of this application;
[0034] Figure 11The seventh schematic diagram of the support structure provided in the embodiments of this application. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0038] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.
[0040] This embodiment provides a support structure for supporting a flexible display module. The support structure may include a support body. In this embodiment, in addition to the support body, the support structure may also include other functional layer structures stacked with the support body; specific limitations are not specified here. Please refer to... Figure 1 and Figure 2 In this embodiment, the support body 100 may include, for example, Figure 1 The curled state shown and as Figure 2As shown in the unfolded state, when the support body 100 is in the curled state, the support structure as a whole is also in the curled state; when the support body 100 is in the unfolded state, the support structure as a whole is also in the unfolded state.
[0041] The support structure includes a first surface 101 and a second surface 102 facing each other. A flexible display module can be disposed on one side of the first surface 101 or the second surface 102 of the support body 100, covering one surface of the support structure. When the support structure as a whole is in the curled state, the flexible display module disposed on the support structure can curl accordingly; when the support structure as a whole is in the unfolded state, the flexible display module disposed on the support structure can unfold accordingly.
[0042] Please refer to this again. Figure 1 and Figure 2 The support body 100 includes at least one support piece 110, which has a first extending direction and a second extending direction that are perpendicular to each other. In one possible implementation, the support body 100 includes a plurality of support pieces 110, all of which are elongated strips extending along the first extending direction. For example, the length of the support piece 110 in the first extending direction is greater than its length in the second extending direction.
[0043] In this embodiment, the support sheet 110 may have a first internal stress, please refer to... Figure 1 and Figure 3 When the support body 100 is in the curled state, the first internal stress drives the support piece 110 to curl toward the first surface 101 along the first extension direction, thereby driving the support body 100 to maintain the curled state. It should be noted that, in this embodiment, when the support body 100 is in the curled state, the first extension direction bends along with the support body 100 as a whole.
[0044] When the support body 100 has a plurality of support pieces 110, each support piece 110 has a first internal stress, such that each support piece 110 curls toward the first surface 101 along the first extension direction under the action of the first internal stress. Then, as a whole, all the support pieces 110 together drive the support body 100 to curl toward the first surface 101 along the first extension direction, thereby keeping the support body 100 in a curled state, so that the support structure is kept in a curled state.
[0045] In this embodiment, the support sheet 110 may also have a second internal stress, please refer to... Figure 2 and Figure 4When the support body 100 is in the unfolded state, the second internal stress drives each of the support pieces 110 to curl relative to each other along the second extension direction toward the second surface 102, so as to drive the support body 100 to maintain the unfolded state, that is, the support structure to maintain the unfolded state.
[0046] In other words, when the support body 100 is in the unfolded state, the support piece 110 curls toward the second surface along the second extending direction. In this state, the second internal stress of the support piece 110 can drive the support piece 110 to straighten and unfold in the first extending direction. When the support body 100 has multiple support pieces 110, then all the support pieces 110 together drive the support body 100 to straighten and unfold along the first extending direction.
[0047] Specifically, the support plate 110 has a first internal stress and a second internal stress, please refer to [reference again] Figure 3 When the support body 100 is in a curled state, the support piece 110 curls towards the first surface 101 along the first extending direction, thereby increasing the bending moment in the second extending direction to resist the second internal stress. This prevents the second internal stress from driving the support piece 110 to curl towards the second surface 102 along the second extending direction. Simultaneously, the first internal stress keeps the support piece 110 curled towards the first surface 101 along the first extending direction, thus keeping the support body 100 in a curled state. In this way, the support body 100, in its curled state, can provide support for the flexible display module to maintain its curled state, thereby preventing the flexible display module from rebounding and unfolding when curled.
[0048] Please refer to this again. Figure 4 When the support body 100 switches to the unfolded state under the action of external force, the support piece 110 straightens in the first extension direction, the bending moment in the second extension direction decreases, and under the action of the second internal stress, the support piece 110 bends towards the second surface 102 along the second extension direction. At the same time, the bending moment of the support piece 110 in the first extension direction increases, keeping the support piece 110 straight along the first extension direction, thereby keeping the support body 100 in the unfolded state. In this way, the support body 100 can provide support for the flexible display module to maintain the unfolded state in the unfolded state, thereby preventing the flexible display module from curling up in the unfolded state and making it convenient for users to use.
[0049] In some possible implementations, the support body 100 can be made of metal, for example, a steel sheet. Thus, a support piece 110, bent toward the second surface 102 along the second extension direction, can be formed on the support body 100 by means of stamping or etching, thereby naturally giving the support piece 110 a second internal stress that bends toward the second surface 102 along the second extension direction. That is, the support piece 110, bent toward the second surface 102 along the second extension direction, can be formed on the support body 100 when the support body 100 is in the unfolded state by means of stamping or etching.
[0050] Then, by applying an external force, the support body 100 can be made to curl and shape the support piece 110 along the first extension direction, thereby giving the support piece 110 a first internal stress that curls toward the first surface 101 along the first extension direction.
[0051] In one possible implementation, when the support body 100 is in the curled state, each support piece 110 curls toward the first surface 101 along the first extension direction under the action of the first internal stress. As a whole, all the support pieces 110 together drive the support body 100 to curl toward the first surface 101 along the first extension direction, thereby keeping the support body 100 in the curled state. When the support body 100 is in the unfolded state, the second internal stress drives each support piece 110 to curl toward the second surface 102 relatively independently along the second extension direction, thereby preventing the support body 100 from curling toward the second surface 102 as a whole along the second extension direction.
[0052] For example, please refer to Figure 5 The support body 100 may include a groove-shaped opening that penetrates the support body 100. The support piece 110 is located in the groove-shaped opening. In the first extending direction, the support piece 110 includes a first end 111 and a second end 112, which are respectively connected to the inner wall of the groove-shaped opening; in the second extending direction, a first gap 113 exists between the support piece 110 and the inner wall of the groove-shaped opening.
[0053] Specifically, in one example, please refer to Figure 5 The first end 111 and / or the second end 112 are provided with openings on both sides of the support piece 110 along the axis of symmetry of the first extending direction.
[0054] Therefore, please refer to Figure 6When the support body 100 is in a curled state, since both ends of each support piece 110 are connected to the support body 100 in the first extending direction, each support piece 110 can drive the support body 100 to curl toward the first surface 101 along the first extending direction, thereby keeping the entire support body 100 curled along the first extending direction. This allows the flexible display module disposed on the support body 100 to remain curled along with the support body 100, preventing the flexible display module from unfolding.
[0055] Please refer to Figure 7 When the support body 100 is in the unfolded state, since there is a first gap 113 between both sides of each support piece 110 and the inner wall of the slot opening in the second extension direction, both sides of each support piece 110 can be rolled relatively independently toward the second surface 102 along the second extension direction, and will not cause the support body 100 to bend along the second extension direction. That is, in the unfolded state, the support body 100 does not bend in any direction, so that the flexible display module disposed on the support body 100 can be kept flat, which is convenient for users to use.
[0056] In one example, please refer to Figure 8 and Figure 9 An opening is provided at the middle position of the first end 111 and / or the second end 112. Similarly, when the support body 100 is in the unfolded state, the position where the support piece 110 is connected to the support body 100 can be twisted to a certain extent, so that each support piece 110 can be relatively independently curled toward the second surface 102 along the second extending direction.
[0057] In one possible implementation, the thickness of the support piece 110 is less than the depth of the slot opening. Preferably, after the support piece 110 is rolled toward the second surface 102, the support piece 110 does not extend beyond the slot opening.
[0058] Specifically, please refer to Figure 9 , Figure 9 for Figure 7 In the cross-sectional view along the AA direction, the thickness D1 of the support piece 110 is less than the depth D2 of the slot opening, and after the support piece 110 is rolled towards the second surface 102, the distance between the two ends of the support piece 110 is no greater than D2. This ensures that the surface of the support body 100 remains flat in the unfolded state, avoiding any impact on the display effect of the flexible display module disposed on the support body 100.
[0059] In some possible implementations, the support body 100 includes a plurality of support sheet rows, each of the support sheet rows including a plurality of support sheets 110 arranged along the second extending direction, and the plurality of support sheet rows arranged along the first extending direction. Thus, please refer to... Figure 10 The bending midpoints of multiple support sheets 110 located in the same row of support sheets are all along the same direction in the curled state. Figure 10 As shown by the dashed line, this prevents the support body 100 from twisting.
[0060] Furthermore, please refer to again Figure 10 A second gap exists between two adjacent support pieces 110 in the same row of support pieces, the width of which is greater than the width of one support piece 110 in the second extending direction. At least some support pieces 110 in at least a portion of the rows of support pieces are located between two adjacent support pieces 110 in another adjacent row of support pieces. This allows for a more balanced distribution of bending points across the multiple rows of support pieces, resulting in a more uniform curvature when the support body 100 is in a bent state.
[0061] In one possible implementation, please refer to Figure 11 The support structure further includes an elastic support layer 200 located on the first surface 101 or the second surface 102 of the support body 100, the elastic support layer 200 being bonded to the support body 100 via an adhesive layer 300. For example, the elastic support layer 200 may include a resilient steel sheet, and the thickness of the elastic support layer 200 may be approximately 0.03 mm. Preferably, the flexible display module is located on the side of the elastic support layer 200 opposite to the support sheet 110.
[0062] Based on the same inventive concept, this embodiment also provides a display panel, which includes the support structure provided in this embodiment and a flexible display module located on the support structure.
[0063] In addition, this embodiment also provides an electronic device, which includes the display panel provided in this embodiment. The electronic device may include devices such as mobile phones, tablets, televisions, computers, and vehicle terminals with rollable screens.
[0064] In summary, the support structure, display panel, and electronic device provided in this application, by incorporating a support sheet with a first internal stress in the support structure, allow the support sheet to curl toward the first surface along the first extension direction when the support structure is in a curled state, thereby maintaining the curled state of the support structure. Thus, the support structure can provide a supporting force to maintain the curled state of the flexible display module, thereby preventing the display module from rebounding and unfolding when in a curled state.
[0065] In addition, the support sheet may also have a second internal stress, which can drive the support sheet to curl toward the second surface along the second extension direction when the support structure is in a curled state, thereby maintaining the position of the support structure in an unfolded state. Thus, the support structure can provide support for the flexible display module in the unfolded state, thereby preventing the flexible display module from curling up in the unfolded state and facilitating user operation.
[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0067] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.
Claims
1. A support structure, characterized in that, The support structure is used to support the flexible display module; the support structure includes a support body, the support body includes a first surface and a second surface opposite to each other, the flexible display module is disposed on one side of the first surface or one side of the second surface, and covers one surface of the support structure; the support body includes at least one support piece, the support piece includes a first extension direction and a second extension direction that are perpendicular to each other; The support structure includes a curled state, and the support sheet includes a first internal stress. When the support body is in the curled state, the first internal stress drives the support sheet to curl toward the first surface along the first extension direction, so as to drive the support structure to maintain the curled state. The support structure also includes an unfolded state, and the support sheet also includes a second internal stress. When the support structure is in the unfolded state, the second internal stress drives each of the support sheets to curl toward the second surface relatively independently along the second extension direction, so as to drive the support structure to maintain the unfolded state. The support body includes a groove-shaped opening that penetrates the support body; The support piece is located in the groove-shaped opening; In the first extending direction, the support piece includes a first end and a second end, the first end and the second end being respectively connected to the inner wall of the slotted opening; in the second extending direction, a first gap exists between the support piece and the inner wall of the slotted opening; An opening is provided at the middle position of the first end and / or the second end, or the first end and / or the second end are provided on both sides of the support piece along the axis of symmetry of the first extending direction; The support sheet is formed by stamping or etching the support body in its unfolded state; The support body includes multiple rows of support pieces, each row of support pieces includes multiple support pieces arranged along the second extending direction, and the multiple rows of support pieces are arranged along the first extending direction; A second gap exists between two adjacent support pieces in the same row of support pieces, the width of which is greater than the width of the support piece in the second extending direction; At least some of the support pieces in the support piece rows are located at least partially between two adjacent support pieces in another adjacent support piece row.
2. The support structure according to claim 1, characterized in that, When the support structure is in the unfolded state, the support sheet curls toward the second surface along the second extension direction.
3. The support structure according to claim 2, characterized in that, The length of the support piece in the first extension direction is greater than its length in the second extension direction.
4. The support structure according to claim 1, characterized in that, The thickness of the support piece is less than the depth of the groove opening.
5. The support structure according to claim 4, characterized in that, After the support piece is rolled toward the second surface, the support piece does not extend beyond the groove opening.
6. The support structure according to claim 1, characterized in that, The support structure further includes an elastic support layer located on the first surface or the second surface of the support body; the elastic support layer is bonded to the support body by an adhesive layer.
7. The support structure according to claim 6, characterized in that, The flexible display module is located on the side of the elastic support layer opposite to the support sheet.
8. A display panel, characterized in that, The display panel includes the support structure as described in any one of claims 1-7 and a flexible display module located on the support structure.
9. An electronic device, characterized in that, The electronic device includes the display panel as described in claim 8.