Sliding and rolling display device

Abstract

The embodiment of the utility model provides a sliding and rolling display device which comprises a sliding and rolling device and a flexible display module, the sliding and rolling device is used for assisting the flexible display module in sliding rolling and unfolding, the flexible display module comprises a flexible display panel and a flexible circuit board, and the flexible display panel comprises a first end and a second end; the sliding and rolling device comprises a housing used for supporting a non-rolling and non-sliding part of the flexible display panel; the sliding rail is arranged on the side, away from the flexible display module, of the machine shell, and the machine shell is in sliding connection with the sliding rail; the first supporting structure is in sliding connection with the sliding rail, is connected with the side, away from the first end of the flexible display panel, of the machine shell and is used for supporting the rolling and sliding part of the flexible display panel; the second supporting structure is connected to the side, close to the second end of the flexible display panel, of the first supporting structure, is slidably connected to the sliding rail and is used for supporting and fixing the flexible circuit board, and the risk that the flexible circuit board scrapes a rear shell of the display device due to warping in the moving process of the sliding and rolling device can be reduced.

Description

A sliding display device Technical Field

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

[0002] Flexible displays possess excellent folding and bending properties, enabling the design of new form factor display devices. By sliding the display to unfold and retract, users can freely adjust the screen ratio, meeting their needs for screen size and portability in different scenarios.

[0003] Roll-up is another innovative application area of ​​flexible display panels. This form allows consumers to freely switch the display area of ​​the flexible panel according to their own needs. This not only makes it convenient for users to carry around, but also provides users with a better user experience than foldable display panels. It is an important direction for the development of flexible display panels. By rolling up and unfolding, products can be freely converted between mobile phones and tablets, realizing the expansion and reduction of the display area, which can be applied to different usage scenarios of different consumer groups. Summary of the Invention

[0004] This disclosure provides a sliding display device that ensures the fixation and support of a flexible circuit board during the movement of the sliding device, thereby avoiding scratches caused by the flexible circuit board lifting.

[0005] To achieve the above objectives, this disclosure provides the following technical solution:

[0006] This disclosure provides a sliding display device, including a sliding device and a flexible display module. The sliding device is used to assist the flexible display module in sliding, rolling up and unfolding. The flexible display module includes a flexible display panel and a flexible circuit board connected to the flexible display panel. The flexible display panel includes a first end and a second end that are disposed opposite to each other along the unfolding direction. The second end is connected to the flexible circuit board.

[0007] The sliding device includes: a housing, the housing including a fixing structure, the fixing structure being used to connect at least one end of the flexible display panel, and the housing being used to support the non-sliding portion of the flexible display panel;

[0008] A sliding track is provided on the side of the housing opposite to the flexible display module. The shape of the sliding track is adapted to the rolling path of the flexible display module, and the housing is slidably connected to the sliding track.

[0009] The first support structure is slidably connected to the sliding track along the rolling path of the flexible display module, and is connected to the side of the housing away from the first end of the flexible display panel. The side of the first support structure away from the sliding track is used to support the rolling part of the flexible display panel.

[0010] The second support structure is connected to the side of the first support structure near the second end of the flexible display panel and is slidably connected to the sliding track, extending in the direction of extension of the flexible display module. The side of the second support structure opposite to the sliding track is used to support and fix the flexible circuit board.

[0011] The flexible display panel is at least connected to its first end via a mounting structure within the housing, thus securing and supporting the non-sliding portion of the flexible display panel. A sliding track is positioned on the side of the housing away from the flexible display module, and the housing can be displaced relative to the sliding track. A first support structure is connected to the side of the housing away from the first end of the flexible display panel, and this first support structure is slidably connected to the sliding track along the sliding path of the flexible display module, supporting the sliding portion of the flexible display panel. This arrangement facilitates the non-sliding portion to drive the sliding portion during the winding and unfolding of the flexible display module. It is understood that the side of the housing facing the flexible display panel is on the same horizontal plane as the side of the first support structure facing the flexible display panel, ensuring the flatness of the entire flexible display panel after unfolding. The shape of the sliding track is adapted to the sliding path of the flexible display module, making the winding and unfolding process of the flexible display module smoother. A second support structure is connected to the side of the first support structure near the second end of the flexible display panel, and this second support structure is also slidably connected to the sliding track and extends in the direction of extension of the flexible display module, supporting and securing the flexible circuit board. This design facilitates the movement of the flexible circuit board by the sliding section during the winding and unfolding of the flexible display module. The sliding device disclosed herein, by adding a second support structure connected to the first support structure, fixes the flexible circuit board to the second support structure and provides support for the flexible circuit board. This not only achieves synchronous sliding between the flexible circuit board and the flexible display panel but also reduces the risk of the flexible circuit board scraping against the back cover of the display device due to warping when the flexible display module is applied.

[0012] Optionally, the sliding device further includes an antistatic layer, and the flexible circuit board includes a first flexible circuit board and a second flexible circuit board, wherein the first flexible circuit board is used to connect the flexible display panel and the second flexible circuit board;

[0013] The antistatic layer is disposed on the side of the flexible circuit board away from the second support structure, and the orthographic projection of the antistatic layer on the second support structure covers the orthographic projection of the second flexible circuit board on the second support structure.

[0014] Optionally, the second support structure includes a metal plate, with one end of the antistatic layer electrically connected to the second flexible circuit board and the other end electrically connected to the metal plate.

[0015] Optionally, the antistatic layer includes an insulating layer and a conductive adhesive layer, and the second flexible circuit board includes an exposed copper area;

[0016] The conductive adhesive layer is disposed on the side of the insulating layer facing the second flexible circuit board. The conductive adhesive layer includes a first bonding area and a second bonding area. The first bonding area is electrically connected to the edge of the second support structure. The position of the second bonding area is adapted to the exposed copper area for electrical connection with the exposed copper area.

[0017] Optionally, the antistatic layer further includes an insulating adhesive layer disposed on the side of the conductive adhesive layer facing the second flexible circuit board, and having a first cutout structure exposing the first bonding area and the second bonding area for connection with the non-exposed copper area of ​​the second flexible circuit board.

[0018] Optionally, the antistatic layer further includes a heat dissipation layer disposed between the insulating adhesive layer and the conductive adhesive layer, the heat dissipation layer having a second perforated structure that exposes the first bonding area and the second bonding area.

[0019] Optionally, the flexible circuit board is bonded to the second support structure.

[0020] Optionally, the first flexible circuit board includes a protrusion that protrudes in a direction toward the second support structure.

[0021] Optionally, the sliding device further includes a guide block, and the second support structure is provided with a groove corresponding to the position of the exposed copper area. One end of the guide block is connected to the exposed copper area, and the other end is slidably connected to the groove.

[0022] Optionally, the guide block is located at the upper limit of the slide groove in a first direction, which is perpendicular to the plane where the flexible display module is located.

[0023] Optionally, the sliding device includes a conductive block, the second support structure includes a metal plate, and the second support structure is provided with a groove corresponding to the exposed copper area of ​​the flexible circuit board. One end of the conductive block is electrically connected to the exposed copper area, and the other end is slidably connected to the groove.

[0024] Optionally, the roll-up display device further includes a rear cover that covers the roll-up portion of the flexible display module. Attached Figure Description

[0025] Figure 1 is a partial perspective view of a traditional sliding roll device and a flexible display module;

[0026] Figure 2 is a top view of the traditional sliding roll device and flexible display module;

[0027] Figure 3 is a structural schematic diagram of the winding state of a traditional sliding display device;

[0028] Figure 4 is a structural schematic diagram of the winding state of a sliding winding device and a flexible display module provided in an embodiment of this disclosure;

[0029] Figure 5 is a structural schematic diagram of the unfolded state of a sliding roll device and a flexible display module provided in an embodiment of this disclosure;

[0030] Figure 6 is a structural schematic diagram of the winding state of a sliding display device provided in an embodiment of this disclosure;

[0031] Figure 7 is a partial perspective view of a sliding device and a flexible display module provided in an embodiment of this disclosure;

[0032] Figure 8 is a side view of a sliding device and a flexible display module provided in an embodiment of this disclosure;

[0033] Figure 9 is another side view of a sliding device and flexible display module provided in an embodiment of this disclosure;

[0034] Figure 10 is a bottom view of an antistatic layer provided in an embodiment of this disclosure;

[0035] Figure 11 is a schematic diagram of an antistatic layer provided in an embodiment of this disclosure;

[0036] Figure 12 is a side view of another sliding device and flexible display module provided in an embodiment of this disclosure;

[0037] Figure 13 is a partial perspective view of another sliding device and flexible display module provided in an embodiment of this disclosure;

[0038] Figure 14 is a top view of the structure in Figure 13;

[0039] Figure 15 is a structural schematic diagram of a guide block or conductive block from different perspectives provided in an embodiment of this disclosure;

[0040] Figure 16 is a structural schematic diagram of Figure 13 from another angle;

[0041] Figure 17 is a partial perspective view of another sliding device and flexible display module provided in an embodiment of the present disclosure;

[0042] Reference numerals: 1. Flexible display module; 11. Flexible display panel; 111. First end; 112. Second end; 12. Flexible circuit board; 121. First flexible circuit board; 1211. Protrusion; 1212. Chip; 122. Second flexible circuit board; 1221. Electronic device; 2. Back cover; 3. Housing; 31. Fixing structure; 4. Sliding track; 41. Straight part; 42. Bending part; 5. First support structure; 6. Second support structure; 61. Metal plate; 62. Sliding hook; 63. Sliding groove; 7. Antistatic layer; 71. Insulating layer; 72. Conductive adhesive layer; 73. Insulating adhesive layer; 731. First hollow structure; 74. Heat dissipation layer; 741. Second hollow structure; A. Exposed copper area; 721. First bonding area; 722. Second bonding area; 8. Guide block; 9. Conductive block; B. Connection area; 10. Adhesive layer. Detailed Implementation

[0043] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure. In the description of the embodiments of this disclosure, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be construed as implying relative importance or implicitly indicating the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "multiple" means two or more.

[0045] In a typical rollable display device, the sliding side of the flexible display module 1 is divided into a non-bonded side and a bonded side. The bonded side mainly consists of a flexible circuit board 12 that slides along with the flexible display panel 11 (non-bonded side). As shown in Figures 1-3, in existing flexible display modules 1, the flexible circuit board 12 on the bonded side is not fixedly supported. During the sliding process of the flexible display module 1, the flexible circuit board 12 may lift up, causing scratches between it and the back cover 2 of the display device, resulting in scratches on the electronic components 1221 on the flexible circuit board 12. To prevent the flexible circuit board 12 from lifting up and scratching the back cover 2, and to achieve fixation and support for the flexible circuit board 12, thereby reducing the risk of scratches on the electronic components 1221 on the flexible circuit board 12, this disclosure proposes the following solutions, specifically including:

[0046] As shown in Figures 4-17, this embodiment of the present disclosure provides a sliding roll-up device for assisting a flexible display module 1 in sliding roll-up and unfolding. The flexible display module 1 includes a flexible display panel 11 and a flexible circuit board 12 connected to the flexible display panel 11. The flexible display panel 11 includes a first end 111 and a second end 112 disposed opposite to each other along the unfolding direction. The second end 112 is connected to the flexible circuit board 12.

[0047] The sliding device includes: a housing 3, the housing 3 including a fixing structure 31, the fixing structure 31 being used to connect at least the first end 111 of the flexible display panel 11, and the housing 3 being used to support the non-sliding portion of the flexible display panel 11.

[0048] The sliding track 4 is located on the side of the housing 3 away from the flexible display module 1. The shape of the sliding track 4 is adapted to the rolling path of the flexible display module 1, and the housing 3 is slidably connected to the sliding track 4.

[0049] The first support structure 5 is slidably connected to the sliding track 4 along the rolling path of the flexible display module 1, and is connected to the side of the housing 3 away from the first end 111 of the flexible display panel 11. The side of the first support structure 5 away from the sliding track 4 is used to support the rolling part of the flexible display panel 11.

[0050] The second support structure 6 is connected to the side of the first support structure 5 near the second end 112 of the flexible display panel 11, and is slidably connected to the sliding rail 4 and extends in the extension direction of the flexible display module 1. The side of the second support structure 6 away from the sliding rail 4 is used to support and fix the flexible circuit board 12.

[0051] It should be noted that, as shown in Figures 4 and 5, the fixing structure 31 of the housing 3 connects at least the first end 111 of the flexible display panel 11 to achieve fixation and support of the non-sliding portion of the flexible display panel 11 by the housing 3. The sliding track 4 is located on the side of the housing 3 away from the flexible display module 1, and the housing 3 can be displaced relative to the sliding track 4. The first support structure 5 is connected to the side of the housing 3 away from the first end 111 of the flexible display panel 11, and the first support structure 5 is slidably connected to the sliding track 4 along the sliding path of the flexible display module 1 to support the sliding portion of the flexible display panel 11. This arrangement facilitates the non-sliding portion to drive the sliding portion to roll up and unroll during the winding and unfolding process of the flexible display module 1. It can be understood that the side of the housing 3 facing the flexible display panel 11 and the side of the first support structure 5 facing the flexible display panel 11 are on the same horizontal plane, which ensures the flatness of the entire flexible display panel 11 after unfolding. The shape of the sliding track 4 is adapted to the rolling path of the flexible display module 1, which facilitates a smoother rolling and unfolding process for the flexible display module 1. The second support structure 6 is connected to the side of the first support structure 5 near the second end 112 of the flexible display panel 11. The second support structure 6 is also slidably connected to the sliding track 4 and extends in the extending direction of the flexible display module 1 to support and fix the flexible circuit board 12. This arrangement facilitates the movement of the flexible circuit board 12 by the rolling part during the rolling and unfolding process of the flexible display module 1. As shown in Figure 6, the rolling device of this disclosure, by adding the second support structure 6 connected to the first support structure 5, fixes the flexible circuit board 12 on the second support structure 6 and provides support for the flexible circuit board 12. This not only achieves synchronous sliding of the flexible circuit board 12 and the flexible display panel 11, but also reduces the risk of the flexible circuit board 12 scraping against the back shell 2 of the display device due to warping when the flexible display module 1 is applied to the display device.

[0052] It should be noted that the first support structure 5 and the second support structure 6 in the embodiments of this disclosure can be an integral structure or a connected separate structure, and there is no specific limitation.

[0053] It should be noted that the shape of the sliding track 4 being adapted to the rolling path of the flexible display module 1 means that, taking Figures 4 and 5 as examples, from the viewer's perspective, the sliding track 4 is U-shaped, and the housing 3, the first support structure 5, and the second support structure 6 supporting the flexible display panel 11 and the flexible circuit board 12 are arranged along the U-shaped outer contour of the sliding track 4. Because the first support structure 5 and the second support structure 6 supporting the rolling portion of the flexible display module 1 are slidably connected to the sliding track 4, the sliding paths of the first support structure 5 and the second support structure 6 are also U-shaped. Therefore, the rolling path of the flexible display module 1, fixed to the first support structure 5 and the second support structure 6, is also U-shaped. In other words, the rolling portion of the flexible display module 1 rolls up and unfolds along the U-shaped outer contour of the sliding track 4.

[0054] Specifically, referring to Figure 4, in the rolled-up state, the entire flexible display module 1 and the sliding track 4 have the same shape, both being U-shaped. During the unfolding process, i.e., from Figure 4 to Figure 5, the flexible display module 1 is displaced along the U-shaped outer contour of the sliding track 4 until the rolled-up portion of the flexible display panel 11 is completely flattened, i.e., the unfolded state in Figure 5. At this time, the non-rolled-up portion of the flexible display panel 11 slides out of the sliding track 4, the rolled-up portion of the flexible display panel 11 has the same shape as the straight portion of the U-shaped sliding track 4, and the flexible circuit board 12 has the same shape as the curved portion of the U-shaped sliding track 4.

[0055] It should be noted that the non-rollable part of the flexible display panel 11 can also be bonded and fixed to the housing 3, and the specific connection and fixing method is not specifically limited.

[0056] As shown in Figures 7-9, the sliding device also includes an antistatic layer 7. The flexible circuit board 12 includes a first flexible circuit board 121 and a second flexible circuit board 122. The first flexible circuit board 121 is used to connect the flexible display panel 11 and the second flexible circuit board 122. The connection portion between the first flexible circuit board 121 and the flexible display panel 11 and the second flexible circuit board 122 is the connection area B. The antistatic layer 7 is disposed on the side of the flexible circuit board 12 facing away from the second support structure 6. The orthographic projection of the antistatic layer 7 on the second support structure 6 covers the orthographic projection of the second flexible circuit board 122 on the second support structure 6. That is, the orthographic projection of the antistatic layer 7 on the second support structure 6 is greater than or equal to the orthographic projection of the second flexible circuit board 122 on the second support structure 6, thereby achieving electrostatic shielding for the second flexible circuit board 122.

[0057] It should be noted that the first flexible circuit board 121 can be a chip on flex (or chip on film, abbreviated as COF), and the second flexible circuit board 122 can be a flexible printed circuit (FPC).

[0058] Referring again to Figures 7-9, the second support structure 6 includes a metal plate 61. One end of the antistatic layer 7 is electrically connected to the second flexible circuit board 122, and the other end is electrically connected to the metal plate 61. The antistatic layer 7 is electrically connected to the second flexible circuit board 122 and the metal plate 61, which enables the second flexible circuit board 122 to be electrically grounded and prevents electrostatic breakdown.

[0059] Specifically, as shown in Figure 8, a chip 1212 is disposed on the side of the first flexible circuit board 121 facing away from the second support structure 6, and an electronic device 1221 is disposed on the side of the second flexible circuit board 122 facing away from the second support structure 6. One end of the antistatic layer 7 is electrically connected to the side of the first flexible circuit board 121 facing away from the second support structure 6, and the other end is electrically connected to the side of the metal plate 61 facing the second flexible circuit board 122. The electronic device 1221 of the second flexible circuit board 122 is also electrically connected to the antistatic layer 7. The antistatic layer 7 covers a portion of the first flexible circuit board 121 and the entire second flexible circuit board 122, thereby achieving electrostatic shielding of the flexible circuit board 12 and grounding of the second flexible circuit board 122.

[0060] As shown in Figures 10 and 11, and in conjunction with Figures 8 and 9, the antistatic layer 7 includes an insulating layer 71 and a conductive adhesive layer 72. The second flexible circuit board 122 includes an exposed copper area A. The conductive adhesive layer 72 is disposed on the side of the insulating layer 71 facing the second flexible circuit board 122. The conductive adhesive layer 72 includes a first adhesive area 721 and a second adhesive area 722. The first adhesive area 721 is electrically connected to the edge of the second support structure 6. The position of the second adhesive area 722 is adapted to the exposed copper area A and is used for electrical connection with the exposed copper area A.

[0061] Specifically, as shown in Figure 8, the first bonding area 721 can be partially electrically connected to the edge of the first flexible circuit board 121 and partially electrically connected to the edge of the metal plate 61 of the second support structure 6. The second bonding area 722 is electrically connected to the exposed copper area A. The first bonding area 721 and the second bonding area 722 are interconnected. The second support structure 6 also includes a sliding hook 62 slidably connected to the sliding rail 4. Through the cooperation of the metal plate 61, the sliding hook 62 and the sliding rail 4, the sliding function of the flexible display module 1 and the support and limiting of the flexible display module 1 can be realized. In this case, the insulating layer 71 can prevent external static electricity from adversely affecting the second flexible circuit board 122 and can realize the grounding of the second flexible circuit board 122. The grounding sequence of the second flexible circuit board 122 is: exposed copper area A—second bonding area 722—first bonding area 721—metal plate 61—sliding hook 62—sliding rail 4. It should be noted that the conductive adhesive layer 72 can be conductive cloth or copper foil conductive material, etc.

[0062] Referring again to Figure 11 and in conjunction with Figure 8, the antistatic layer 7 further includes an insulating adhesive layer 73. The insulating adhesive layer 73 is disposed on the side of the conductive adhesive layer 72 facing the second flexible circuit board 122 and has a first perforated structure 731 exposing the first bonding area 721 and the second bonding area 722 for connection with the non-exposed copper area of ​​the second flexible circuit board 122. The first perforated structure 731 of the insulating adhesive layer 73 exposes the first bonding area 721 and the second bonding area 722, facilitating the electrical connection between the metal plate 61 and the exposed copper area A with the first bonding area 721 and the second bonding area 722, respectively, thereby achieving electrical connection between the exposed copper area A and the metal plate 61, and ultimately grounding the second flexible circuit board 122. The remaining portion of the insulating adhesive layer 73 is connected to the non-exposed copper area of ​​the second flexible circuit board 122, so that the antistatic layer 7 is adhered to the second flexible circuit board 122, increasing structural stability.

[0063] Referring again to Figure 11 and in conjunction with Figure 8, the antistatic layer 7 further includes a heat dissipation layer 74. The heat dissipation layer 74 is disposed between the insulating adhesive layer 73 and the conductive adhesive layer 72. The heat dissipation layer 74 has a second perforated structure 741 that exposes the first bonding area 721 and the second bonding area 722. Similarly, the second perforated structure 741 of the heat dissipation layer 74 exposes the first bonding area 721 and the second bonding area 722, facilitating the electrical connection between the metal plate 61 and the exposed copper area A with the first bonding area 721 and the second bonding area 722, respectively, thereby achieving the electrical connection between the exposed copper area A and the metal plate 61, and ultimately grounding the second flexible circuit board 122. The remaining portion of the heat dissipation layer 74 is located between the insulating adhesive layer 73 and the conductive adhesive layer 72, and is used to dissipate heat from the flexible circuit board 12.

[0064] It should be noted that, in addition to the heat dissipation layer 74, other functional layers can be added to achieve other required additional functions.

[0065] In some embodiments, as shown in Figures 8 and 9, the flexible circuit board 12 and the second support structure 6 can be bonded together using an adhesive layer 10, specifically, the second flexible circuit board 122 is bonded to the metal plate 61. Fixing the second flexible circuit board 122 to the metal plate 61 avoids the problems of the first flexible circuit board 121 and the second flexible circuit board 122 being unable to be fixed and warping. In this case, referring to Figure 6, since the flexible circuit board 12 and the second support structure 6 are distributed on different layers, when the flexible display module 1 is rolled up, interlayer misalignment will occur between the flexible circuit board 12 and the second support structure 6, resulting in a displacement difference at the tail end of the flexible display module 1. Therefore, using adhesive to fix the flexible circuit board 12 to the second support structure 6 will cause slight pulling on the bonding area during the sliding process of the flexible display module 1, which may easily cause the bonding area to fail, posing a risk of display abnormalities.

[0066] Based on the above problems, in one possible implementation, as shown in FIG12, the first flexible circuit board 121 of this embodiment includes a protrusion 1211, which protrudes in the direction toward the second support structure 6. By reserving a certain amount of variable space when the first flexible circuit board 121 is fixed, when the flexible display module 1 is rolled up, the protrusion 1211 will change from a protruding state to a flattened state to compensate for the misalignment difference between layers and reduce the pulling on the flexible circuit board 12 in the bonding area.

[0067] In other embodiments, to further improve the problem of tensile failure in the bonding area, the fixing method between the second flexible circuit board 122 and the second support structure 6 can be changed. Specifically, as shown in Figures 13 and 14, the sliding device further includes a guide block 8, and the second support structure 6 is provided with a groove 63 at the position corresponding to the exposed copper area A. One end of the guide block 8 is connected to the exposed copper area A, and the other end is slidably connected to the groove 63. In this embodiment, the second flexible circuit board 122 and the metal plate 61 are not bonded together, but are connected through the guide block 8.

[0068] Specifically, as shown in Figures 13-16, one end of the guide block 8 can be rectangular, and the other end can be circular, connected by a middle connecting part. The rectangular end is fixedly connected to the exposed copper area A, for example, by adhesive bonding, while the circular end is slidably disposed in the groove 63 of the metal plate 61. In this embodiment, when the flexible display module 1 is rolled up, the guide block 8 can slide relative to the groove 63, and the metal plate 61 and the second flexible circuit board 122 can undergo relative displacement, thereby compensating for the interlayer misalignment displacement difference and reducing the pulling on the bonding area of ​​the flexible circuit board 12.

[0069] As shown in Figure 13, the guide block 8 is positioned at the upper limit of the slide groove 63 in the first direction, which is perpendicular to the plane of the flexible display module 1. By limiting the guide block 8 in the direction perpendicular to the plane of the flexible display module 1, that is, the guide block 8 can only move along the rolling direction of the flexible display module 1, the position of the second flexible circuit board 122 can be limited, preventing the second flexible circuit board 122 from shaking and increasing structural stability.

[0070] In some embodiments, referring to FIG17, the sliding device includes a conductive block 9, and the second support structure 6 includes a metal plate 61. The second support structure 6 is provided with a groove 63 corresponding to the exposed copper area A of the flexible circuit board 12. One end of the conductive block 9 can be electrically connected to the exposed copper area A through conductive adhesive or other conductive means, and the other end is slidably connected to the groove 63. In this way, the flexible circuit board 12 can also be grounded. Specifically, one end of the conductive block 9 is electrically connected to the exposed copper area A of the second flexible circuit board 122, and the other end is slidably disposed in the groove 63 of the metal plate 61. The grounding sequence of the second flexible circuit board 122 is: exposed copper area A—conductive block 9—metal plate 61—sliding hook 62—sliding track 4. This arrangement can not only achieve the grounding of the flexible circuit board 12, but also compensate for the misalignment difference between layers and reduce the pulling on the bonding area of ​​the flexible circuit board 12.

[0071] Referring again to Figure 17, based on the aforementioned conductive block 9, an antistatic layer 7 can be added to provide electrostatic shielding for the flexible circuit board 12. It should be noted that the specific structure of the antistatic layer 7 can be the same as the aforementioned scheme, but its connection position needs to be adjusted. Specifically, as shown in Figure 1, the antistatic layer 7 can be connected to the first flexible circuit board 121 and the second flexible circuit board 122, but the conductive adhesive layer 72 in the antistatic layer 7 cannot be connected to the metal plate 61, that is, it cannot extend beyond the edge of the second flexible circuit board 122, to prevent multiple grounding paths from affecting the function of the flexible circuit board 12.

[0072] As shown in Figure 6, the sliding display device also includes a rear shell 2. The flexible display module 1 is at least partially disposed in the first support structure 5 and the second support structure 6 in the sliding device. The sliding device can assist the flexible display module 1 in sliding, winding and unfolding. The rear shell 2 covers the winding portion of the flexible display module 1.

[0073] The flexible display module 1 includes a flexible display panel 11 and a flexible circuit board 12 connected to the flexible display panel 11. A first support structure 5 supports and fixes the sliding portion of the flexible display panel 11, a second support structure 6 supports and fixes the flexible circuit board 12, and a rear shell 2 covers the sliding portion of the flexible display module 1. During the winding and unfolding process of the flexible display module 1, the flexible circuit board 12 slides synchronously with the flexible display panel 11, and the flexible circuit board 12 will not scrape against the rear shell 2 of the display device due to warping.

[0074] It should be noted that the display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Other essential components of the display device are those that should be understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0075] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A sliding display device, wherein, The device includes a sliding roll-up device and a flexible display module. The sliding roll-up device is used to assist the flexible display module in sliding roll-up and unfolding. The flexible display module includes a flexible display panel and a flexible circuit board connected to the flexible display panel. The flexible display panel includes a first end and a second end that are disposed opposite to each other along the unfolding direction. The second end is connected to the flexible circuit board. The sliding device includes: a housing, the housing including a fixing structure, the fixing structure being at least used to connect to a first end of the flexible display panel, the housing being used to support the non-sliding portion of the flexible display panel; a sliding track, disposed on the side of the housing away from the flexible display module, the shape of the sliding track being adapted to the sliding path of the flexible display module, and the housing being slidably connected to the sliding track; a first support structure, slidably connected to the sliding track along the sliding path of the flexible display module, and connected to the side of the housing away from the first end of the flexible display panel, the side of the first support structure away from the sliding track being used to support the sliding portion of the flexible display panel; and a second support structure, connected to the side of the first support structure near the second end of the flexible display panel, and slidably connected to the sliding track, extending in the extending direction of the flexible display module, the side of the second support structure away from the sliding track being used to support and fix the flexible circuit board.

2. The sliding display device according to claim 1, wherein, The sliding device further includes an antistatic layer. The flexible circuit board includes a first flexible circuit board and a second flexible circuit board. The first flexible circuit board is used to connect the flexible display panel and the second flexible circuit board. The antistatic layer is disposed on the side of the flexible circuit board away from the second support structure. The orthographic projection of the antistatic layer on the second support structure covers the orthographic projection of the second flexible circuit board on the second support structure.

3. The sliding display device according to claim 2, wherein, The second support structure includes a metal plate, with one end of the antistatic layer electrically connected to the second flexible circuit board and the other end electrically connected to the metal plate.

4. The sliding display device according to claim 3, wherein, The antistatic layer includes an insulating layer and a conductive adhesive layer, and the second flexible circuit board includes an exposed copper area; the conductive adhesive layer is disposed on the side of the insulating layer facing the second flexible circuit board, and the conductive adhesive layer includes a first adhesive area and a second adhesive area, the first adhesive area being electrically connected to the edge of the second support structure; the position of the second adhesive area is adapted to the exposed copper area for electrical connection with the exposed copper area.

5. The sliding display device according to claim 4, wherein, The antistatic layer further includes an insulating adhesive layer, which is disposed on the side of the conductive adhesive layer facing the second flexible circuit board and has a first hollow structure that exposes the first bonding area and the second bonding area for connection with the non-exposed copper area of ​​the second flexible circuit board.

6. The sliding display device according to claim 5, wherein, The antistatic layer further includes a heat dissipation layer, which is disposed between the insulating adhesive layer and the conductive adhesive layer. The heat dissipation layer has a second perforated structure that exposes the first bonding area and the second bonding area.

7. The sliding display device according to any one of claims 1-6, wherein, The flexible circuit board is bonded to the second support structure.

8. The sliding display device according to claim 7, wherein, The flexible circuit board includes a first flexible circuit board; the first flexible circuit board includes a protrusion that protrudes in a direction toward the second support structure.

9. The sliding display device according to any one of claims 4-6, wherein, The sliding device further includes a guide block, and the second support structure is provided with a sliding groove corresponding to the position of the exposed copper area. One end of the guide block is connected to the exposed copper area, and the other end is slidably connected to the sliding groove.

10. The sliding display device according to claim 9, wherein, The guide block is located at the upper limit of the slide groove in a first direction, which is perpendicular to the plane where the flexible display module is located.

11. The sliding display device according to claim 1, wherein, The sliding device includes a conductive block, the second support structure includes a metal plate, and the second support structure is provided with a groove corresponding to the exposed copper area of ​​the flexible circuit board. One end of the conductive block is electrically connected to the exposed copper area, and the other end is slidably connected to the groove.

12. The sliding display device according to claim 1, wherein, The sliding display device also includes a rear shell, which covers the sliding portion of the flexible display module.

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