Reel assembly and flexible display module

Abstract

The application belongs to the technical field of intelligent display, and discloses a reel assembly and a flexible display module. The reel assembly comprises a winding structure, an attaching unit of the winding structure is provided with an attaching plane and a transition arc surface, an outer peripheral surface of a winding unit of the winding structure is an arc surface, the attaching plane, the transition arc surface and the arc surface are smoothly connected in sequence, the attaching plane is used for gluing a flexible display panel, and the transition arc surface and the arc surface are both used for winding the flexible display panel. The attaching plane of the reel assembly is used for gluing the flexible display panel. Compared with the cylindrical reel in the prior art, the attaching unit with the attaching plane can facilitate alignment of the flexible display panel, reduce installation difficulty, improve installation efficiency and yield, and the bonding position of the attaching plane and the flexible display panel is a plane structure, which can reduce the possibility of warping of the flexible display panel, thereby improving the bonding stability of the flexible display panel and the reel, and improving the use performance of the reel assembly.

Description

Technical Field

[0001] This invention relates to the field of intelligent display technology, and more particularly to roll-up assemblies and flexible display modules. Background Technology

[0002] With the development of technology, engineers and designers have been exploring the form factors of display terminals, and display terminal products have been constantly updated and iterated. Flexible screen terminals are a new type of terminal, such as rollable screen terminals or sliding screen terminals. By using a roll, the flexible display panel can be retracted and extended, providing a larger display area while ensuring portability, thereby improving the user experience.

[0003] Existing flexible display terminals employ a roll-up design, where the display area is rolled up to shrink or expand, thereby changing the current display area of ​​the flexible display panel. However, in existing technologies, the flexible display panel is prone to delamination after being glued to the roll-up, posing a challenge to product reliability.

[0004] Therefore, a roll assembly and a flexible display module are needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a roll assembly and a flexible display module, which improves the bonding stability of the flexible display panel and thus enhances the reliability of the product by providing an attachment plane for bonding the flexible display panel.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A scroll assembly includes a winding structure, which comprises an attachment unit and a winding unit. One end of the attachment unit and one end of the winding unit are fixedly connected, and the other ends of the attachment unit and the winding unit are spaced apart. The attachment unit and the winding unit enclose and form a receiving cavity with a communicating groove. The attachment unit is provided with an attachment plane and a transition arc surface. The outer peripheral surface of the winding unit is an arc surface. The attachment plane, the transition arc surface, and the arc surface transition smoothly in sequence. The attachment plane is the end face of the attachment unit facing away from the winding unit. The attachment plane is used to adhere a flexible display panel. The transition arc surface and the arc surface are both used to wind the flexible display panel. The circuit board of the flexible display panel is installed in the receiving cavity after passing through the communicating groove.

[0008] As an optional technical solution, the attachment unit is further provided with an inner mounting surface, the winding unit is provided with an inner side surface, the inner side surface and the inner mounting surface are parallel, the inner mounting surface and the inner side surface are two opposite sides of the receiving cavity, and the circuit board is mounted on the inner mounting surface.

[0009] As an optional technical solution, the arc surface is a circular arc surface, and the attachment unit is located within the circular area formed by the diameter of the circular arc surface.

[0010] As an optional technical solution, the reel assembly further includes mounting units, and the two mounting units are detachably connected to both ends of the winding structure.

[0011] As an optional technical solution, the attaching unit is provided with a first mounting part at both ends along the length direction, and the winding unit is provided with a second mounting part at both ends along the length direction. The first mounting part and the second mounting part located on one side are used to connect one of the mounting units, and the first mounting part and the second mounting part located on the other side are used to connect the other mounting unit.

[0012] As an optional technical solution, the first mounting part is a first threaded hole opened in the attachment unit, and the second mounting part is a second threaded hole opened in the winding unit. The mounting unit has a first mounting hole and a second mounting hole. The first mounting hole and the first threaded hole are connected to each other, and the second mounting hole and the second threaded hole are connected to each other. The first bolt passes through the first mounting hole and is threadedly connected to the first threaded hole. The second bolt passes through the second mounting hole and is threadedly connected to the second threaded hole, so as to connect the mounting unit to the winding structure.

[0013] As an optional technical solution, the attaching unit has a first concave surface at both ends along its length, and the first threaded hole is opened on the first concave surface; the winding unit has a second concave surface at both ends along its length, and the second threaded hole is opened on the second concave surface; the mounting unit is provided with a boss, and both the first concave surface and the second concave surface can abut against the boss surface of the boss.

[0014] As an optional technical solution, the attachment plane is provided with reference lines, and two reference lines are provided at intervals along the length direction of the attachment unit. The two reference lines are used to indicate the attachment area of ​​the attachment plane.

[0015] As an optional technical solution, the reel assembly further includes a drive member for driving the winding structure to rotate.

[0016] The present invention also adopts the following technical solutions:

[0017] A flexible display module, comprising a flexible display panel and a roll assembly as described above, wherein one end of the flexible display panel is attached to the attachment plane of the attachment unit, and the other end of the flexible display panel is rolled along the transition arc surface and the arc surface.

[0018] The beneficial effects of this invention are:

[0019] This invention discloses a scroll assembly, which includes a winding structure comprising an attachment unit and a winding unit. One end of the attachment unit is fixedly connected to one end of the winding unit, and the other end of the attachment unit and the other end of the winding unit are spaced apart. The attachment unit and the winding unit are arranged together to form a receiving cavity with a communicating groove. The attachment unit is provided with an attachment plane and a transition arc surface, and the outer peripheral surface of the winding unit is an arc surface. The attachment plane, the transition arc surface, and the arc surface transition smoothly in sequence, and the attachment plane is the end face of the attachment unit facing away from the winding unit. The attachment plane is used to adhesively bond a flexible display panel, and the transition arc surface and the arc surface are both used to wind the flexible display panel. The circuit board of the flexible display panel is installed in the receiving cavity after passing through the communicating groove. The attachment unit of this roll assembly features an attachment plane for bonding the flexible display panel. Compared to existing cylindrical rolls, this attachment unit with an attachment plane facilitates alignment of the flexible display panel, reduces installation difficulty, and improves installation efficiency and yield. Furthermore, the planar bonding surface between the attachment plane and the flexible display panel reduces the possibility of warping, thus improving the bonding stability between the flexible display panel and the roll, thereby enhancing the performance of the roll assembly and ensuring product quality. The attachment unit and the winding unit are arranged together to form a receiving cavity with connecting grooves. After the flexible display panel is attached to the attachment plane, circuit boards and other structures connected to the flexible display panel can be installed into the receiving cavity through the connecting grooves. This enhances the flexibility and convenience of the roll assembly, improves product performance, and ultimately increases product competitiveness.

[0020] This invention also discloses a flexible display module, which includes a flexible display panel and the aforementioned scroll assembly. One end of the flexible display panel is attached to the attachment plane of the attachment unit, and the other end of the flexible display panel is rolled up along the transition arc surface and the arc-shaped surface. By installing the aforementioned scroll assembly, this flexible display module can improve the attachment effect, reduce defects such as panel warping, thereby extending the service life of the flexible display module and enhancing product competitiveness. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the winding structure according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A magnified view of part A in the image;

[0023] Figure 3 This is a schematic diagram of the winding structure from another perspective of an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation unit according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the reel assembly according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the flexible display module in the extended state according to Embodiment 2 of the present invention;

[0027] Figure 7 This is a schematic diagram of the flexible display module in the retracted state according to Embodiment 2 of the present invention;

[0028] Figure 8 This is a schematic diagram of the flexible display module in the extended state according to Embodiment 3 of the present invention;

[0029] Figure 9 This is a schematic diagram of the flexible display module in the contracted state according to Embodiment 3 of the present invention.

[0030] In the picture:

[0031] 2. Flexible display panel;

[0032] 10. Winding structure; 11. Attachment unit; 111. Attachment plane; 112. Transition arc surface; 113. Inner mounting surface; 114. First threaded hole; 115. First pin hole; 116. First concave surface; 117. First protrusion; 12. Winding unit; 121. Arc-shaped surface; 122. Inner surface; 123. Second threaded hole; 124. Second pin hole; 125. Second concave surface; 126. Second protrusion; 13. Connecting groove; 14. Receiving cavity;

[0033] 20. Mounting unit; 21. First mounting hole; 22. Second mounting hole; 23. Mounting component; 24. Boss; 25. Second pin hole; 26. Fourth pin hole;

[0034] 30. Fixed structure; 31. Fixed plate; 32. Pressure plate. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0039] As mentioned in the background section, existing flexible display modules typically employ a single-roller design, with the roll usually being cylindrical. While the cylindrical structure improves the winding performance of the flexible display panel, the panel's inherent resilience means that when bonded to the cylindrical roll, it will bend. Due to its inherent resilience, the panel tends to move away from the roll, posing a challenge to the bonding between the panel and the roll. As the adhesive deteriorates, the panel may lift or even detach from the roll, affecting the performance and lifespan of the roll-up display terminal.

[0040] In response to the above problems, such as Figures 1 to 5As shown, this embodiment of the invention provides a roll assembly. By providing an attachment plane 111, the bonding joint between the winding structure 10 and the flexible display panel 2 is a planar structure, thereby improving the connection stability between the flexible display panel 2 and the winding structure 10. This improves the bonding effect and service life compared to the cylindrical rolls in the prior art.

[0041] like Figures 1 to 3 As shown, the scroll assembly includes a winding structure 10, which includes an attachment unit 11 and a winding unit 12. One end of the attachment unit 11 is fixedly connected to one end of the winding unit 12, and the other end of the attachment unit 11 and the other end of the winding unit 12 are spaced apart. The attachment unit 11 and the winding unit 12 surround each other to form a receiving cavity 14 with a connecting groove 13. The attachment unit 11 is provided with an attachment plane 111 and a transition arc surface 112. The outer peripheral surface of the winding unit 12 is an arc surface 121. The attachment plane 111, the transition arc surface 112 and the arc surface 121 are smoothly transitioned in sequence. The attachment plane 111 is the end face of the attachment unit 11 facing away from the winding unit 12. The attachment plane 111 is used to adhesively bond the flexible display panel 2. The transition arc surface 112 and the arc surface 121 are both used to wind the flexible display panel 2. The circuit board of the flexible display panel 2 is installed in the receiving cavity 14 after passing through the connecting groove 13.

[0042] Specifically, in this embodiment, as Figure 2As shown, one end of the attaching unit 11 is fixedly connected to one end of the winding unit 12, and the other end of the attaching unit 11 and the other end of the winding unit 12 are spaced apart, so that the attaching unit 11 and the winding unit 12 enclose a receiving cavity 14 with a connecting groove 13. This arrangement allows the outer periphery of the winding structure 10 to be used to fix and wind the flexible display panel 2, while the circuit board and other attached components of the flexible display panel 2 can enter the receiving cavity 14 through the connecting groove 13 and be fixed. This ensures that the flexible display panel 2 and its attached structures can be stably fixed, thereby improving the stability of the flexible display panel 2 installed on the winding structure 10 during use; it is beneficial to improve its service life and space utilization. The end face of the attaching unit 11 away from the winding unit 12 is the attaching plane 111, and the winding unit 12 is provided with an arc surface 121. The transition arc surface 112 provided on the attaching unit 11 will attach the plane. The smooth transition between surface 111 and curved surface 121 ensures the smoothness of the winding of the flexible display panel 2, improves the winding effect of the flexible display panel 2, avoids bending of the flexible display panel 2, and thus ensures the display effect of the flexible display panel 2. The attachment plane 111 of the attachment unit 11 is used to attach the flexible display panel 2. This setting makes the adhesive area of ​​the attachment unit 11 and the flexible display panel 2 planar, which can ensure that the flexible display panel 2 in the adhesive area is always in a planar state. Compared with the cylindrical roller in the prior art, the roller assembly in this embodiment can significantly reduce the problem of the flexible display panel 2 in the adhesive area being prone to lifting or even detachment due to its own elasticity. This results in better adhesion performance between the attachment unit 11 and the flexible display panel 2, improves the adhesion stability of the flexible display panel 2, and improves the quality of the product.

[0043] Specifically, in this embodiment, the attaching unit 11 and the winding unit 12 are integrally formed structures. The bar stock is processed by machining to obtain the above structure, which can ensure its dimensional accuracy and thus ensure the performance.

[0044] Specifically, in this embodiment, the winding structure 10 is made of steel, and both the transition arc surface 112 and the arc surface 121 are polished to give the transition surface and the arc surface 121 a smaller roughness, improve their smoothness, and thus avoid wear on the flexible display panel 2, ensuring the performance of the flexible display panel 2.

[0045] In another embodiment, the attachment unit 11 and the winding structure 10 can also be machined separately. After the attachment unit 11 and the winding unit 12 are machined separately, they can be connected by welding or threaded connection, etc. No specific restrictions are made here.

[0046] Furthermore, such as Figure 3 As shown, the attaching unit 11 is further provided with an inner mounting surface 113, and the winding unit 12 is provided with an inner side surface 122. The inner side surface 122 is parallel to the inner mounting surface 113. The inner mounting surface 113 and the inner side surface 122 are two opposite sides of the receiving cavity 14, and the circuit board is mounted on the inner mounting surface 113. Specifically, in this embodiment, the inner mounting surface 113 of the attaching unit 11 is parallel to the attaching plane 111, and the inner side surface 122 of the winding unit 12 is parallel to the inner mounting surface 113. This arrangement makes the structure of the receiving cavity 14 more regular, which facilitates the installation of circuit boards, etc. This arrangement can reduce the processing difficulty, improve the processing efficiency, thereby reducing the processing cost, and effectively improve the space utilization of the roll assembly, thus enhancing the competitiveness of the product.

[0047] Specifically, in another embodiment, there is an angle between the inner mounting surface 113 and the attachment plane 111, and the angle between the inner mounting surface 113 and the attachment plane 111 can be specifically set according to actual use, without limitation.

[0048] Specifically, in this embodiment, the inner mounting surface 113 and the attachment plane 111 are connected by a connecting surface. Both the inner mounting surface 113 and the attachment plane 111 are perpendicular to the connecting surface. A first chamfer is provided between the inner mounting surface 113 and the connecting surface, and a second chamfer is provided between the attachment plane 111 and the connecting surface. The first and second chamfers can reduce wear and tear, thereby improving service life. Simultaneously, when the end of the flexible display panel 2 is wrapped around the attachment unit 11, the second chamfer between the attachment plane 111 and the connecting surface can reduce the rigid support on the flexible display panel 2, thereby reducing damage to the flexible display panel 2 and further improving its service life and display effect.

[0049] Specifically, in this embodiment, the circuit board and other attached structures of the flexible display panel 2 can also be mounted to the inner mounting surface 113 by adhesive. In other embodiments, the inner mounting surface 113 is provided with a mounting part for mounting the circuit board and other attached structures of the flexible display panel 2, which is not limited here. Specifically, the mounting part can be a clip or stud provided on the inner mounting surface 113. The above-mentioned settings are common settings in the prior art and will not be described in detail here.

[0050] Furthermore, the arc surface 121 is a circular arc surface, and the attachment unit 11 is located within the circular area formed by the diameter of the circular arc surface. Specifically, in this embodiment, the arc surface 121 is a circular arc surface, and the angle around which the arc surface 121 of the winding unit 12 passes is at least 180°. The transition arc surface 112 of the attachment unit 11 can also smoothly transition the flexible display panel 2 between the attachment plane 111 and the arc surface 121, which can improve the winding effect of the winding structure 10 on the flexible display panel 2, reduce bending damage to the flexible display panel 2, and improve its performance. The attachment unit 11 is located within the circular area formed by the diameter of the circular arc surface, which allows the flexible display panel 2 to be wound within the circular area where the diameter of the circular arc surface is located, minimizing the lifting or squeezing of the flexible display panel 2 by the protruding part of the attachment unit 11, thereby improving the winding effect of the flexible display panel 2, avoiding deformation and other defects of the flexible display panel 2, and thus improving the flexible display effect. At the same time, it can also reduce space occupation and improve its performance.

[0051] Specifically, in this embodiment, the first end of the flexible display panel 2 can be connected to the attachment plane 111 by adhesive, and the second end of the flexible display panel 2 extends along the transition arc surface 112 and the arc surface 121. The end of the second end of the flexible display panel 2 is flush with the end of the arc surface 121 away from the attachment unit 11, thereby ensuring the use effect of the roll assembly.

[0052] In some other embodiments, the angle around which the arc surface 121 passes can be set according to the length of the flexible display panel 2 installed on the winding structure 10. When the length of the flexible display panel 2 installed on the winding structure 10 does not exceed the preset length, the flexible display panel 2 is kept within the range of the arc surface 121 as much as possible to avoid bending and other problems of the flexible display panel 2, thereby improving the performance of the flexible display panel 2.

[0053] In other embodiments, when the angle at which the flexible display panel 2 wraps around the winding structure 10 exceeds a preset length, the interval between the attachment unit 11 and the winding unit 12 needs to be set to the minimum. This ensures the winding effect of the flexible display panel 2 without affecting the installation of the circuit board and other attached components of the flexible display panel 2, thus improving the versatility of the winding structure 10.

[0054] Specifically, in this embodiment, the preset length of the flexible display panel 2 is the minimum interval between the attachment unit 11 and the winding unit 12, and the length of the flexible display panel 2 extending along the transition arc surface 112 and the arc surface 121 to the end of the arc surface 121 away from the transition arc surface 112. In this case, the attachment plane 111 can be set as an exposed surface, so that the part of the flexible display panel 2 attached to the attachment plane 111 is a normal display screen. When the flexible display panel 2 is in a retracted state, it can display commonly used parameters, and when the flexible display panel 2 is in an extended state, it can display the entire screen, meeting the user's usage needs in different usage states. This setting can ensure that necessary parameters can be displayed.

[0055] Specifically, in this case, the minimum spacing between the attachment unit 11 and the winding unit 12 is the minimum spacing between the attachment unit 11 and the winding unit 12 that does not affect the installation of the attached structures such as the circuit board of the flexible display panel 2 into the receiving cavity 14.

[0056] Furthermore, such as Figure 4 and Figure 5 As shown, the roll assembly also includes mounting units 20, with two mounting units 20 respectively mounted at both ends of the winding structure 10. Specifically, in this embodiment, the two mounting units 20 are detachably connected to both ends of the winding structure 10, which ensures both ease of mounting the circuit board and other attached structures of the flexible display panel 2 into the receiving cavity 14 and provides sufficient protection for the circuit board and other attached structures of the flexible display panel 2 mounted in the receiving cavity 14, thereby improving safety during use.

[0057] Furthermore, the attaching unit 11 has a first mounting portion at both ends along its length, and the winding unit 12 has a second mounting portion at both ends along its length. The first and second mounting portions on one side are used to connect to one of the mounting units 20, and the first and second mounting portions on the other side are used to connect to the other mounting unit 20. Specifically, in this embodiment, two first mounting portions are respectively disposed at both ends of the attaching unit 11 along its length, and two second mounting portions are respectively disposed at both ends of the winding unit 12 along its length. The first and second mounting portions on the same side are used to connect to one of the mounting units 20 simultaneously, and the first and second mounting portions on the other side are used to connect to the other mounting unit 20 simultaneously. This arrangement allows one end of the attaching unit 11 and one end of the winding unit 12 to be connected to the same mounting unit 20 simultaneously, and allows the other end of the attaching unit 11 and the other end of the winding unit 12 to be connected to the same other mounting unit 20 simultaneously. This improves the installation stability of the mounting units 20, thereby enhancing the overall integrity of the roll assembly and ensuring its performance.

[0058] Further, please refer to Figure 2 and Figure 4 The first mounting portion is a first threaded hole 114 formed in the attachment unit 11, and the second mounting portion is a second threaded hole 123 formed in the winding unit 12. The mounting unit 20 has a first mounting hole 21 and a second mounting hole 22, which are connected to each other. The first mounting hole 21 and the first threaded hole 114 are connected to each other, and the second mounting hole 22 and the second threaded hole 123 are connected to each other. A first bolt passes through the first mounting hole 21 and is threaded into the first threaded hole 114, and a second bolt passes through the second mounting hole 22 and is threaded into the second threaded hole 123, so as to connect the mounting unit 20 to the winding structure 10. Specifically, in this embodiment, both the attachment unit 11 and the winding unit 12 are connected to the mounting unit 20 by bolt threads, which can ensure good connection stability and facilitate disassembly and assembly, thus improving ease of use.

[0059] Specifically, in this embodiment, please refer to Figure 2 and Figure 4 The attaching unit 11 has two first threaded holes 114, the axis of which is parallel to the length of the attaching unit 11. The two first threaded holes 114 are spaced apart along a first direction, which is parallel to the width of the attaching plane 111. The winding unit 12 has two second threaded holes 123, the axis of which is also parallel to the length of the attaching unit 11. The two second threaded holes 123 are spaced apart along the first direction. The mounting unit 20 has a first mounting... There are two first mounting holes 21 and two second mounting holes 22. The two first mounting holes 21 are connected to the two first threaded holes 114 one by one, and the two second mounting holes 22 are connected to the two second threaded holes 123 one by one. The two first bolts pass through the two first mounting holes 21 one by one and are threaded into the two first threaded holes 114 one by one. The two second bolts pass through the two second mounting holes 22 one by one and are threaded into the two second threaded holes 123 one by one, so as to connect the mounting unit 20 to the winding structure 10. This arrangement can not only ensure the reliability of the connection between the attachment unit 11, the winding unit 12 and the mounting unit 20, but also facilitate disassembly and assembly, improving the ease of use.

[0060] Specifically, in this embodiment, please refer to Figure 2 and Figure 4A first pin hole 115 is provided between the two first threaded holes 114, and a second pin hole 25 is provided between the two first mounting holes 21. The first pin hole 115 and the second pin hole 25 are connected, and the first pin shaft passes through the first pin hole 115 and the second pin hole 25. A third pin hole is provided between the two second threaded holes 123, and a fourth pin hole 26 is provided between the two second mounting holes 22. The third pin hole and the fourth pin hole 26 are connected, and the second pin shaft passes through the third pin hole and the fourth pin hole 26. This arrangement can provide better positioning performance and improve installation accuracy when the mounting unit 20 is installed on the winding structure 10.

[0061] Specifically, in this embodiment, the number and position of the first threaded hole 114, the first mounting hole 21, and the first bolt can be specifically set according to actual use, and the number and position of the second threaded hole 123, the second mounting hole 22, and the second bolt can also be specifically set according to actual use, without limitation. When multiple first threaded holes 114, first mounting holes 21, and first bolts are provided, and multiple second threaded holes 123, second mounting holes 22, and second bolts are also provided, as long as it is ensured that multiple first mounting holes 21 and multiple first threaded holes 114 can be connected one-to-one, multiple first bolts pass through multiple first mounting holes 21 and are threadedly connected to multiple first threaded holes 114 one-to-one, and at the same time, it is ensured that multiple second mounting holes 22 and multiple second threaded holes 123 can be connected one-to-one, and multiple second bolts pass through multiple second mounting holes 22 and are threadedly connected to multiple second threaded holes 123 one-to-one, thereby ensuring that the mounting unit 20 has good installation performance when connected to the winding structure 10.

[0062] In another embodiment, the first mounting part is a first through hole opened in the attachment unit 11, and the second mounting part is a second through hole opened in the winding unit 12. The mounting unit 20 is provided with a first locking block and a second locking block. The first locking block can be locked into the first through hole, and the second locking block can be locked into the second through hole, thereby connecting the mounting unit 20 to the winding structure 10. This arrangement can achieve the same technical effect, and will not be described in detail here.

[0063] Specifically, the number and position of the first through hole and the first locking block can be set according to actual use, and the number and position of the second locking block of the second through hole can be set according to actual use, without limitation. When there are multiple first through holes and multiple first locking blocks, as long as multiple second through holes and multiple second locking blocks are provided, as long as it is ensured that the multiple first through holes and multiple first locking blocks can be locked in one-to-one correspondence, and that the multiple second through holes and multiple second locking blocks can be locked in one-to-one correspondence, the installation unit 20 connected to the winding structure 10 can have good installation stability, improve service life, and facilitate disassembly and assembly, thus improving the flexibility during use.

[0064] Further, please refer to Figure 2 and Figure 4 The attaching unit 11 has a first concave surface 116 at both ends along its length, and a first threaded hole 114 is formed on the first concave surface 116. The winding unit 12 has a second concave surface 125 at both ends along its length, and a second threaded hole 123 is formed on the second concave surface 125. The mounting unit 20 has a boss 24, and the first concave surface 116 and the second concave surface 125 abut against the boss 24 surface.

[0065] Specifically, in this embodiment, please refer to Figure 2 and Figure 4 The attaching unit 11 has at least a first protrusion 117 on its outer periphery, a first concave surface 116 located inside the first protrusion 117, and a first threaded hole 114 formed in the first concave surface 116. The winding unit 12 has a second protrusion 126 on its outer periphery, a second concave surface 125 located inside the second protrusion 126, and a second threaded hole 123 formed in the second concave surface 125. The mounting unit 20 includes a mounting member 23 and a boss 24, the boss 24 protruding from the mounting member 23. The mounting unit 20 has a first mounting hole 21 and a second mounting hole 22, both of which pass through the mounting member 23. 3 and boss 24, when the mounting unit 20 and the winding structure 10 are connected, the first bolt passes through the first mounting hole 21 and is threaded into the first threaded hole 114, the second bolt passes through the second mounting hole 22 and is threaded into the second threaded hole 123, the first concave surface 116 and the second concave surface 125 both abut against the boss 24 surface of the boss 24, and / or, the first protrusion 117 and the second protrusion 126 both abut against the mounting part 23. In the installation process, the protrusions can have a certain positioning effect on the installation of the mounting unit 20, thereby ensuring that the installation of the mounting unit 20 has good positional accuracy and improving the convenience of installation.

[0066] Furthermore, reference lines are provided on the attachment plane 111. Two reference lines are spaced apart along the length direction of the attachment unit 11, and the two reference lines are used to indicate the attachment area of ​​the attachment plane 111. Specifically, in this embodiment, the two reference lines are spaced apart along the length direction of the attachment unit 11, and the distance between the two reference lines is specifically set according to the width of the flexible display panel 2. Preferably, the distance between the two reference lines is slightly larger than the width of the flexible display panel 2, so that after the flexible display panel 2 is attached to the attachment plane 111, the two reference lines can still be exposed in the operator's field of vision, thereby improving the convenience of the operator attaching the flexible display panel 2 and improving the positional accuracy of the flexible display panel 2, thus ensuring its performance.

[0067] Preferably, in this embodiment, the reference scribe line extends along the width direction of the attachment plane 111, and the length of the reference scribe line is the width of the attachment plane 111. This setting can ensure that the part of the flexible display panel 2 attached to the attachment plane 111 has good positional accuracy, thereby ensuring that the rolled flexible display panel 2 will not have problems such as positional displacement, thereby improving its performance.

[0068] In other embodiments, the length of the reference scribe line can be specifically set according to actual use. For example, in another embodiment, the reference scribe line extends along the width direction of the attachment plane 111 to the transition arc surface 112. Although the processing difficulty of the reference scribe line increases, its guiding effect on the flexible display panel 2 is better, which further improves the accuracy of the setting position of the flexible display panel 2 and thus ensures its performance.

[0069] Specifically, in this embodiment, the reference lines can be processed using a laser etching machine. In other embodiments, chemical etching, sandblasting, or electron beam etching can also be used to process the reference lines on the attachment plane 111. The above-mentioned etching methods are all prior art and will not be described in detail here.

[0070] Furthermore, the scroll assembly also includes a drive component for driving the winding structure 10 to rotate. Specifically, in this embodiment, the drive component is a drive motor, and the output end of the drive motor is connected to one of the mounting units 20 of the scroll assembly. The rotation of the drive motor can drive the mounting unit 20 to rotate, thereby driving the winding structure 10 to rotate, thus enabling the flexible display panel 2 to shrink or expand, thereby achieving the goal of changing the area of ​​the real-world region.

[0071] In another embodiment, two drive motors are provided, and the output ends of the two drive motors are respectively connected to the two mounting units 20 of the scroll assembly. The two drive motors always maintain synchronous operation, which can also realize the shrinking or stretching of the flexible display panel 2, thereby achieving the goal of changing the area of ​​the real area, and also improving the force balance of the scroll assembly, thus ensuring its use effect.

[0072] Specifically, the roll assembly in this embodiment is also suitable for testing the number of times the flexible display panel 2 can be wound up in the workshop, and related winding number tests have been conducted in actual production. Compared with the cylindrical roll assembly in the prior art, the roll assembly in this embodiment can significantly increase the number of times the flexible display panel 2 attached to it can be wound up, thus indicating that the roll assembly in this embodiment can significantly increase the service life of the flexible display module with the roll assembly, thereby improving the performance and competitiveness of the product.

[0073] The process of installing the flexible display panel 2 onto the roll assembly in this embodiment is described in detail below. First, adhesive is applied to the bonding area of ​​the attachment unit 11 and / or the flexible display panel 2, and the attached components such as the circuit board of the flexible display panel 2 are placed in the receiving cavity 14. Then, the bonding area of ​​the flexible display panel 2 is aligned with the attachment plane 111, and the two reference lines are observed to ensure that the width direction of the flexible display panel 2 is between the two reference lines, ensuring that the flexible display panel 2 does not shift. The flexible display panel 2 is then attached to the attachment plane 111, and a certain pressure is applied to the part of the flexible plane attached to the attachment plane 111 by the pressure-applying structure to ensure the reliability of the attachment between the flexible display panel 2 and the attachment plane 111. Then, the attached components such as the circuit board of the flexible display panel 2 are installed onto the inner mounting surface 113 of the receiving groove to ensure its installation stability and functionality. Next, the two mounting units 20 are respectively installed to the two ends of the winding structure 10 using the first bolt and the second bolt to complete the installation.

[0074] Specifically, the winding structure 10 and the two mounting units 20 of the roll assembly are usually connected when they arrive. Before installing the flexible display panel 2, the two mounting units 20 need to be removed from both ends of the winding structure 10 so that the circuit board and other attached components of the flexible display panel 2 can be installed into the receiving cavity 14. If the winding structure 10 and the two mounting units 20 of the roll assembly arrive separately, it is not necessary to disassemble the winding structure 10 and the mounting units 20, and the installation process can be carried out directly.

[0075] like Figures 6 to 7 As shown, this embodiment provides a flexible display module, which includes a flexible display panel 2 and the scroll assembly from Embodiment 1. One end of the flexible display panel 2 is attached to the attachment plane 111 of the attachment unit 11, and the other end of the flexible display panel 2 is rolled up along the transition arc surface 112 and the arc surface 121. This flexible display module, by installing the aforementioned scroll assembly, can improve the attachment effect, reduce defects such as warping of the flexible display panel 2, thereby extending the service life of the flexible display module and enhancing product competitiveness.

[0076] Furthermore, in this embodiment, the flexible display module includes a first mounting base and a second mounting base. The first mounting base and the second mounting base can move closer to each other or further away from each other under the drive of the first driving mechanism. The flexible display module is provided with two of the above-mentioned scroll assemblies. One scroll assembly is rotatably disposed on the first mounting base, and the other scroll assembly is rotatably disposed on the second mounting base. The two ends of the flexible display panel 2 are respectively attached to the attachment plane 111 of the winding unit 12 of the two winding structures 10 of the two scroll assemblies. When the first mounting base and the second mounting base move closer to each other or further away from each other, the two scroll assemblies rotate synchronously under the drive of the corresponding driving member, so that the flexible display panel 2 can always be supported between the two scroll assemblies and can always maintain a taut state, meeting the user's needs for display areas of different sizes, while ensuring its display effect.

[0077] Further, in this embodiment, the first driving mechanism includes a first driving motor, a screw, and a nut. The first driving motor is mounted on the first mounting base, and the screw is connected to the output shaft of the first driving motor. The direction of the screw is consistent with the direction in which the second mounting base translates relative to the first mounting base. The nut is threadedly connected to the screw and fixedly connected to the second mounting base. The first driving motor drives the screw to rotate, and the screw and nut convert the rotational motion into translational motion, thereby driving the second mounting base to translate relative to the first mounting base. In other embodiments, the second mounting base can also be driven to translate relative to the first mounting base using gears, connecting rods, or other mechanisms, which will not be elaborated here.

[0078] Specifically, in this embodiment, when the first drive motor starts, the drive motor on the scroll assembly starts synchronously, and the first drive motor and the drive motor on the scroll assembly are configured to cooperate to ensure that the distance between the first mounting base and the second mounting base is equal to the length of the flexible display panel being wound or unwound on the scroll assembly, thereby ensuring that the flexible display panel can always be in a relatively suitable tension state and ensuring its display effect.

[0079] Furthermore, in this embodiment, the first mounting base is provided with a groove whose extension direction is consistent with the translation direction of the second mounting base, and the second mounting base is provided with a slider whose extension direction is consistent with the translation direction of the second mounting base. The protrusion is slidably disposed in the groove, so that the second mounting base can translate relative to the first mounting base through the groove and the slider. The groove and the slider play a guiding and restricting role on the movement of the second mounting base, thereby preventing the first mounting base and the second mounting base from loosening or shifting when moving relative to each other, and making the translation movement of the second mounting base smoother.

[0080] Preferably, the slider in this embodiment has a strip-shaped structure. When the first mounting base and the second mounting base are close to or far from each other, the slider is always located in the groove, which can ensure that the first mounting base and the second mounting base have a certain support capacity for the flexible display panel 2, thereby improving the stability during use and improving the performance.

[0081] Preferably, in this embodiment, a limiting block is provided between the slider and the slide groove. The limiting block can limit the position between the first mounting base and the second mounting base, thereby avoiding excessive stretching of the flexible display panel 2, thus improving the use effect, reducing the risk of damage to the flexible display panel 2, and extending its service life.

[0082] like Figures 8 to 9 As shown, this embodiment provides a flexible display module, which includes a flexible display panel 2 and a scroll assembly as in embodiment 1. One end of the flexible display panel 2 is attached to the attachment plane 111 of the attachment unit 11, and the other end of the flexible display panel 2 is rolled along the transition arc surface 112 and the arc surface 121. It also includes a fixing structure 30, which is used to fix the end of the flexible display panel 2 away from the attachment plane 111, so that the size of the screen display area of ​​the flexible display module can only be adjusted by the side with the scroll assembly.

[0083] The flexible display module can be a sliding screen or a rollable screen.

[0084] Furthermore, in this embodiment, the flexible display module also includes a fixed base and a second driving mechanism. The fixed base has an installation groove, the fixed structure 30 is fixedly disposed at one end of the installation groove, the scroll assembly is slidably disposed at the other end of the installation groove, and the second driving mechanism is disposed between the fixed base and the scroll assembly to drive the scroll assembly to move along the direction close to or away from the fixed structure 30, thereby adjusting the size of the display area of ​​the flexible display panel 2 by adjusting the position of the scroll assembly.

[0085] Furthermore, in this embodiment, the fixed base is provided with guide grooves, and two guide grooves are respectively provided at both ends of the mounting groove perpendicular to the moving direction of the scroll assembly. Guide rods are provided on both mounting units 20 of the scroll assembly, and the two guide rods are slidably disposed in the two guide grooves in a one-to-one correspondence. The setting of guide grooves and guide rods can improve the stability of the scroll assembly moving along the fixed base, thereby ensuring that the adjustment of the display area of ​​the flexible display panel 2 has good stability.

[0086] Furthermore, in this embodiment, the second driving mechanism includes a second driving motor, a gear, and a rack. The second rack extends along the moving direction of the scroll assembly. The second driving motor is fixedly mounted on the mounting unit 20 of the scroll assembly. The gear is fixedly mounted on the output shaft of the second driving motor, and the gear and rack mesh. When the second driving motor rotates, it drives the gear to rotate, thereby causing the gear to move along the extending direction of the rack, which in turn drives the scroll assembly to move along the extending direction of the rack. This allows the scroll assembly to move closer to or further away from the fixed structure 30, thereby adjusting the size of the display area of ​​the flexible display panel 2.

[0087] Specifically, in this embodiment, when the second drive motor starts, the drive motor on the scroll assembly starts synchronously, and the second drive motor and the drive motor on the scroll assembly are configured to ensure that the distance of the scroll assembly from the fixed structure 30 is equal to the length of the flexible display panel being wound or unwound on the scroll assembly, thereby ensuring that the flexible display panel can always be in a relatively suitable tension state and ensuring its display effect.

[0088] Preferably, in this embodiment, there are two second drive motors, gears, and racks. The two second drive motors are fixedly mounted on the two mounting units 20, the two gears are fixedly mounted on the output ends of the two second drive motors, and the two racks are respectively mounted on both sides of the mounting groove in the direction perpendicular to the moving direction of the roller assembly, thereby ensuring the stability of the movement and avoiding positional deviation.

[0089] In other embodiments, the second drive mechanism may also be other mechanisms capable of linear movement, such as a motor and worm gear pair mechanism, or a linear cylinder, etc., without limitation.

[0090] Furthermore, in this embodiment, the fixing structure 30 includes a fixing plate 31, a pressure plate 32, and a fixing member. The fixing plate 31 is provided with a fixing threaded hole, the flexible display panel 2 is provided with a positioning through hole, and the pressure plate 32 is provided with a fixing through hole. The fixing bolt passes through the fixing through hole and the positioning through hole in sequence and is threadedly connected to the fixing threaded hole to fix the flexible display panel 2 on the fixing plate 31. The fixing plate 31 is fixedly set on the fixing seat, thereby ensuring that the end of the flexible display panel 2 away from the scroll assembly has better stability.

[0091] Alternatively, in another embodiment, the fixing structure includes a fixing plate 31 and a pressure plate 32. The flexible display panel 2 is connected to the fixing plate 31 and the pressure plate 32 by adhesive. Since both the fixing plate 31 and the pressure plate 32 are plate-shaped structures, the connection stability between the fixing plate 31 and the pressure plate 32 and the flexible display panel 2 can also be guaranteed.

[0092] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A reel assembly, characterized in that, The reel assembly includes a winding structure (10), which includes an attachment unit (11) and a winding unit (12). One end of the attachment unit (11) and one end of the winding unit (12) are fixedly connected. The other end of the attachment unit (11) and the other end of the winding unit (12) are spaced apart. The attachment unit (11) and the winding unit (12) enclose each other to form a receiving cavity (14) with a communicating groove (13). The attachment unit (11) is provided with an attachment plane (111) and a transition arc surface (112). The winding unit (111) is provided with an attachment plane (111) and a transition arc surface (112). 2) The outer peripheral surface is an arc surface (121). The attachment plane (111), the transition arc surface (112) and the arc surface (121) are smoothly transitioned in sequence. The attachment plane (111) is the end face of the attachment unit (11) away from the winding unit (12). The attachment plane (111) is used to glue the flexible display panel (2). The transition arc surface (112) and the arc surface (121) are both used to wind the flexible display panel (2). The circuit board of the flexible display panel (2) is installed in the receiving cavity (14) after passing through the connecting groove (13).

2. The reel assembly according to claim 1, characterized in that, The attaching unit (11) is also provided with an inner mounting surface (113), and the winding unit (12) is provided with an inner side surface (122). The inner side surface (122) and the inner mounting surface (113) are parallel. The inner mounting surface (113) and the inner side surface (122) are two opposite sides of the receiving cavity (14). The circuit board is mounted on the inner mounting surface (113).

3. The reel assembly according to claim 1, characterized in that, The arc surface (121) is a circular arc surface, and the attachment unit (11) is located within the circular area formed by the diameter of the circular arc surface.

4. The reel assembly according to claim 1, characterized in that, The reel assembly also includes mounting units (20), two of which are detachably connected to the two ends of the winding structure (10).

5. The reel assembly according to claim 4, characterized in that, The attaching unit (11) has a first mounting portion at both ends along its length, and the winding unit (12) has a second mounting portion at both ends along its length. The first mounting portion and the second mounting portion on one side are used to connect one of the mounting units (20), and the first mounting portion and the second mounting portion on the other side are used to connect the other mounting unit (20).

6. The reel assembly according to claim 5, characterized in that, The first mounting part is a first threaded hole (114) opened in the attachment unit (11), and the second mounting part is a second threaded hole (123) opened in the winding unit (12). The mounting unit (20) is provided with a first mounting hole (21) and a second mounting hole (22). The first mounting hole (21) and the first threaded hole (114) are connected to each other, and the second mounting hole (22) and the second threaded hole (123) are connected to each other. The first bolt passes through the first mounting hole (21) and is threadedly connected to the first threaded hole (114). The second bolt passes through the second mounting hole (22) and is threadedly connected to the second threaded hole (123) to connect the mounting unit (20) to the winding structure (10).

7. The reel assembly according to claim 6, characterized in that, The attaching unit (11) has a first concave surface (116) at both ends along its length, and the first threaded hole (114) is opened on the first concave surface (116). The winding unit (12) has a second concave surface (125) at both ends along its length, and the second threaded hole (123) is opened on the second concave surface (125). The mounting unit (20) has a boss (24), and both the first concave surface (116) and the second concave surface (125) can abut against the boss (24) surface of the boss (24).

8. The reel assembly according to any one of claims 1-7, characterized in that, The attachment plane (111) is provided with reference lines, and two reference lines are provided at intervals along the length direction of the attachment unit (11). The two reference lines are used to indicate the attachment area of ​​the attachment plane (111).

9. The reel assembly according to claim 8, characterized in that, The reel assembly also includes a drive element for driving the winding structure (10) to rotate.

10. A flexible display module, the flexible display module comprising a flexible display panel (2), characterized in that, The flexible display module further includes a roll assembly as described in any one of claims 1-9, wherein one end of the flexible display panel (2) is attached to the attachment plane (111) of the attachment unit (11), and the other end of the flexible display panel (2) is rolled up along the transition arc surface (112) and the arc surface (121).

Images