Display device and display terminal

Abstract

The embodiment of the invention provides a display device and a display terminal. The display device comprises a barrel shaft, a module screen body and a flexible circuit board. The module screen body is wound outside the barrel shaft, and the winding starting end of the module screen body is connected to the barrel shaft; the flexible circuit board penetrates through the barrel wall of the barrel shaft, one end, located outside the barrel shaft, of the flexible circuit board is connected with the winding starting end of the module screen body, and the part, located in the barrel shaft, of the flexible circuit board is matched with the barrel shaft in an inserted mode. Therefore, in the process that the module screen body curls and slides, the winding starting end of the module screen body and the flexible circuit board are fixed relatively firmly relative to the barrel shaft, so that the relative movement between the winding starting end of the module screen body and the flexible circuit board can be reduced when the module screen body curls and slides; the possibility of occurrence of situations such as glue layer stacking or film layer falling caused by stress of the module screen body is effectively reduced, the service life of the module screen body is prolonged, and the reliability of the display device is also improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular, to a display device and a display terminal. Background Art

[0002] With the innovation and development of flexible display technology, flexible display devices are being used in more and more fields, such as mobile phones, televisions, and cars. Flexible display devices with sliding and curling forms will surely occupy a place in the future flexible display field due to their obvious advantages such as small space occupation and portability.

[0003] However, the display effect / reliability / service life (usually one of the three) of the current sliding and curling flexible display devices need to be improved. Summary of the invention

[0004] In view of this, embodiments of the present application provide a display panel and a display terminal to at least partially solve the above problems.

[0005] According to a first aspect of an embodiment of the present application, a display device is provided, comprising: a barrel shaft, a module screen body and a flexible circuit board; the module screen body is wound outside the barrel shaft, and the winding starting end of the module screen body is connected to the barrel shaft; the flexible circuit board passes through the barrel wall of the barrel shaft, and one end of the flexible circuit board located outside the barrel shaft is connected to the winding starting end of the module screen body, and the part of the flexible circuit board located inside the barrel shaft is plugged into and matched with the barrel shaft.

[0006] In a possible implementation, the cylindrical shaft includes a plurality of arc plates; the plurality of arc plates are circumferentially distributed to form the cylindrical shaft, adjacent arc plates are connected, and the flexible circuit board passes through the cylindrical wall of the cylindrical shaft between any two adjacent arc plates.

[0007] In a possible implementation, the multiple arc-shaped plates are two arc-shaped plates; a first connecting strip and a second connecting strip connected to each other are arranged inside the cylindrical shaft, the first connecting strip is connected to the first arc-shaped plate of the two arc-shaped plates, and the second connecting strip is connected to the second arc-shaped plate of the two arc-shaped plates; the first connecting strip is connected to a first plug-in block inserted in the second connecting strip, and / or the second connecting strip is connected to a second plug-in block inserted in the first connecting strip.

[0008] In a possible implementation, the first connecting bar and the second connecting bar are respectively located on both sides of the flexible circuit board; the first connecting bar and / or the part of the flexible circuit board located in the cylindrical shaft are connected with a fixed bar block, the fixed bar block connected to the first connecting bar is inserted into the part of the flexible circuit board located in the cylindrical shaft, and the fixed bar block connected to the part of the flexible circuit board located in the cylindrical shaft is inserted in the first connecting bar.

[0009] In a possible implementation, the first connecting bar and the second connecting bar are parallel to each other, a side of the first connecting bar close to the flexible circuit board abuts against the flexible circuit board, and a side of the second connecting bar close to the flexible circuit board abuts against the flexible circuit board.

[0010] In a possible implementation, the first connecting strip and the second connecting strip are respectively located on both sides of the flexible circuit board; the end surface of the first curved plate close to the flexible circuit board and the side surface of the first connecting strip close to the flexible circuit board are on the same plane, and the end surface of the second curved plate close to the flexible circuit board and the side surface of the second connecting strip close to the flexible circuit board are on the same plane.

[0011] In one possible implementation, the module screen body is wound around the outside of the cylindrical shaft for more than one circle, and the winding starting end of the module screen body is connected to the first end of the first curved plate. The first circle of the module screen body winding around the cylindrical shaft starts from the first end of the first curved plate, and is wound along the first curved plate to the second end of the first curved plate, and then wound to the second curved plate; the sum of the outer diameter of the first curved plate and the thickness of the module screen body is equal to the outer diameter of the second curved plate.

[0012] In a possible implementation, the winding start end of the module screen body is connected to a limiting bar block, and the limiting bar block is inserted into the barrel shaft.

[0013] In a possible implementation, a glue groove is provided on the barrel shaft near the starting end of the winding of the module screen body; at least a portion of the limiting strip is located in the glue groove, and a glue is provided in the glue groove to bond to the inner wall of the glue groove, the starting end of the winding of the module screen body and the limiting strip.

[0014] In a possible implementation, the module screen body includes a protective layer, a touch display screen and a supporting layer, the touch display screen is located between the protective layer and the supporting layer; the limiting bar is connected to the supporting layer; and the end of the flexible circuit board located outside the cylindrical shaft is electrically connected to the touch display screen at the starting end of the winding of the module screen body.

[0015] According to a second aspect of an embodiment of the present application, a display terminal is provided, comprising a terminal device body, and a display apparatus as described in the first aspect or any one of the above implementations, which is arranged on the terminal device body.

[0016] According to the display device provided by the embodiment of the present application, the display device includes a module screen body whose winding starting end is connected to the barrel shaft, an end of the flexible circuit board located outside the barrel shaft is connected to the winding starting end of the module screen body, and a portion of the flexible circuit board located inside the barrel shaft is plugged into and matched with the barrel shaft. Thus, in the process of unfolding the module screen body wound on the barrel shaft and winding the module screen body onto the barrel shaft (referred to as the process of curling and sliding of the module screen body), the plugging and matching of the flexible circuit board with the barrel shaft and the connection of the winding starting end with the barrel shaft make the winding starting end of the module screen body and the flexible circuit board fixed relatively firmly relative to the barrel shaft, thereby reducing the relative movement between the winding starting end of the module screen body and the flexible circuit board when the module screen body curls and slides, effectively reducing the possibility of glue layer stacking or film layer shedding caused by the force on the module screen body itself, improving the service life of the module screen body, and also improving the reliability of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of a display device according to an embodiment of the present application;

[0019] Figure 2 is a cross-sectional view of a display device according to an embodiment of the present application;

[0020] Figure 3 is a schematic structural diagram of a cylindrical shaft according to an embodiment of the present application;

[0021] Figure 4 is a partial cross-sectional view of another display device according to an embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of a module screen according to an embodiment of the present application;

[0023] Figure 6 is a schematic structural diagram of another display device according to an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 1. Cylindrical shaft; 11. First arc-shaped plate; 111. Limiting groove; 112. Glue groove; 12. Second arc-shaped plate; 2. Module screen; 21. Winding start end; 211. Limiting strip; 22. Protective layer; 23. Touch screen; 24. Support layer; 3. Flexible circuit board; 4. Colloid; 5. First connecting strip; 51. First plug-in block; 6. Second connecting strip; 61. Second plug-in block; 7. Fixed strip. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0027] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in the embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0028] It should be understood that in the description of the embodiments of the present application, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the schemes of the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0029] In addition, when an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, the element or layer may be directly on, directly connected to, or directly coupled to the other element or layer, or intervening elements or layers may be present. However, when an element or layer is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element or layer, there are no intervening elements or layers present.

[0030] The terms first, second, etc. are used to describe various elements, components, regions, layers and / or parts, but these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer and / or part from another element, component, region, layer and / or part.

[0031] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] The specific implementation of the embodiment of the present application is further explained below in conjunction with the accompanying drawings of the embodiment of the present application.

[0033] Figure 1 Schematic diagram of the structure of a display device according to an embodiment of the present application. Figure 1 As shown, the display device includes: a barrel shaft 1, a module screen body 2 and a flexible circuit board 3; the barrel shaft 1 is a barrel shaft body, for example, a cylindrical shaft body; the module screen body 2 is a rollable flexible screen body, the module screen body 2 is wound outside the barrel shaft 1, and the winding starting end 21 of the module screen body 2 is connected to the barrel shaft 1; the flexible circuit board 3 passes through the barrel wall of the barrel shaft 1 so that a part of the flexible circuit board 3 is located inside the barrel shaft 1 and the other part is located outside the barrel shaft 1, the end of the flexible circuit board 3 located outside the barrel shaft 1 is connected to the winding starting end 21 of the module screen body 2, and the end of the flexible circuit board 3 located outside the barrel shaft 1 is also electrically connected to the winding starting end 21 of the module screen body 2, and the part of the flexible circuit board 3 located inside the barrel shaft 1 is plugged into the barrel shaft 1.

[0034] In the embodiment of the present application, the winding start end 21 of the module screen body 2 is connected to the barrel shaft 1, the end of the flexible circuit board 3 located outside the barrel shaft 1 is connected to the winding start end 21 of the module screen body 2, and the part of the flexible circuit board 3 located inside the barrel shaft 1 is plugged and matched with the barrel shaft 1. Therefore, in the process of unfolding the module screen body 2 wound on the barrel shaft 1 and winding the module screen body 2 onto the barrel shaft 1 (referred to as the process of curling and sliding of the module screen body 2), the plugging and matching of the flexible circuit board 3 and the barrel shaft 1 and the connection of the winding start end 21 and the barrel shaft 1 make the winding start end 21 of the module screen body 2 and the flexible circuit board 3 relatively firmly fixed relative to the barrel shaft 1, thereby reducing the relative movement between the winding start end 21 of the module screen body 2 and the flexible circuit board 3 when the module screen body 2 curls and slides, effectively reducing the possibility of glue layer stacking or film layer shedding caused by the force on the module screen body 2 itself, improving the service life of the module screen body 2, and also improving the reliability of the display device.

[0035] In one possible implementation, Figure 2 and Figure 3 As shown, the winding starting end 21 of the module screen body 2 is fixedly connected to the limiting strip 211, and the limiting strip 211 is inserted into the cylindrical shaft 1. For example, a limiting groove 111 is provided on the outer surface of the cylindrical shaft 1, and the limiting strip 211 is inserted into the cylindrical shaft 1 through the limiting groove 111.

[0036] In the embodiment of the present application, the winding starting end 21 of the module screen body 2 is inserted into the cylindrical shaft 1 through the limiting strip 211 and is plugged into the cylindrical shaft 1, so that the connection between the winding starting end 21 of the module screen body 2 and the cylindrical shaft 1 can be more firm.

[0037] Alternatively, if Figure 2 As shown, the cross-sectional area of ​​the limiting strip 211 gradually increases along the direction from the outer surface of the cylinder shaft 1 to the inner surface of the cylinder shaft 1, and the shape of the limiting groove 111 matches the shape of the limiting strip 211. Therefore, the possibility of the limiting strip 211 escaping from the limiting groove 111 after being subjected to force can be reduced, so that the winding starting end 21 of the module screen body 2 is more firmly connected to the cylinder shaft 1.

[0038] Alternatively, if Figure 2 As shown, the cylinder shaft 1 and the winding starting end 21 of the module screen body 2 can also be bonded by means of a colloid 4, so that the connection between the winding starting end 21 of the module screen body 2 and the cylinder shaft 1 is more secure.

[0039] In one possible implementation, Figure 2 As shown, the colloid 4 is bonded to the side of the winding starting end 21 of the module screen body 2 close to the barrel shaft 1, the limiting strip 211 passes through the colloid 4, and the side of the colloid 4 away from the winding starting end 21 is bonded to the outer surface of the barrel shaft 1, thereby, the colloid 4 can further strengthen the connection between the winding starting end 21 of the module screen body 2 and the barrel shaft 1; optionally, a groove for accommodating the colloid 4 can also be opened on the side of the winding starting end 21 of the module screen body 2 close to the barrel shaft 1, so that the winding starting end 21 of the module screen body 2 and the barrel shaft 1 are more closely fitted, and the embodiment of the present application is not limited to this.

[0040] In another possible implementation, Figure 4 As shown, a glue groove 112 is provided on the cylinder shaft 1 near the winding starting end 21 of the module screen body 2; at least part of the limiting strip 211 is located in the glue groove 112, and a colloid 4 bonded to the inner wall of the glue groove 112, the winding starting end 21 of the module screen body 2 and the limiting strip 211 is provided in the glue groove 112, and the thickness of the colloid 4 is equal to the depth of the glue groove 112, as shown in FIG. Figure 3 As mentioned above, the thickness of the colloid 4 and the depth of the colloid groove 112 are both h1.

[0041] In the embodiment of the present application, the colloid 4 is arranged in the glue groove 112 opened on the cylinder shaft 1, which can strengthen the connection between the winding starting end 21 of the module screen body 2 and the cylinder shaft 1 and make the winding starting end 21 of the module screen body 2 and the cylinder shaft 1 more closely fitted, while avoiding grooving on the module screen body 2, thereby improving the life of the module screen body 2 and making the module screen body 2 thinner.

[0042] In one possible implementation, Figure 5 As shown, the module screen body 2 includes a protective layer 22, a touch display screen 23 and a support layer 24, and the touch display screen 23 is located between the protective layer 22 and the support layer 24. Based on this: the limiting bar 211 is fixedly connected to the support layer 24; the end of the flexible circuit board 3 located outside the cylinder shaft 1 is electrically connected to the touch display screen 23 at the winding starting end 21 of the module screen body 2.

[0043] In the embodiment of the present application, the limiting bar 211 inserted on the cylindrical shaft 1 is connected to the supporting layer 24 of the module screen body 2. Therefore, in the process of curling and sliding of the module screen body 2, the supporting layer 24 is the part of the module screen body 2 that is subjected to the greatest force, which effectively reduces the possibility of glue layer stacking or film layer shedding caused by the force on the touch display screen 23 itself, thereby increasing the service life of the touch display screen 23 and further improving the reliability of the display device.

[0044] In one possible implementation, Figure 2 and Figure 3 As shown, the cylinder shaft 1 includes a plurality of arc plates; the plurality of arc plates are circumferentially distributed to form a cylindrical cylinder shaft 1, adjacent arc plates are connected, and the flexible circuit board 3 passes through the cylinder wall of the cylinder shaft 1 between any two adjacent arc plates, and the above-mentioned limit groove 111 can be opened on the outer surface of any arc plate.

[0045] In the embodiment of the present application, the barrel shaft 1 is formed by connecting a plurality of arc-shaped plates, and the flexible circuit board 3 passes through the barrel wall of the barrel shaft 1 from between any two adjacent arc-shaped plates. Therefore, compared with inserting the flexible circuit board 3 into the notch provided on the barrel wall of the integrated barrel shaft 1 and then plugging the part of the flexible circuit board 3 in the barrel shaft 1 with the barrel shaft 1, in the embodiment of the present application, the flexible circuit board 3 is directly assembled between two adjacent arc-shaped plates when assembling the display device, which is more convenient, and the barrel shaft 1 formed by a plurality of arc-shaped plates also facilitates the plugging between the part of the flexible circuit board 3 in the barrel shaft 1 and the barrel shaft 1, so that the display device can be more convenient to assemble and the assembly yield can also be improved.

[0046] In one possible implementation, Figure 3 and Figure 4As shown, the multiple arc plates are two arc plates, based on this: a first connecting strip 5 and a second connecting strip 6 which are connected to each other are arranged inside the cylindrical shaft 1, the first connecting strip 5 is connected to the first arc plate 11 of the two arc plates, and the connection can be a fixed connection or an integral connection, etc., the second connecting strip 6 is connected to the second arc plate 12 of the two arc plates, and the connection can be a fixed connection or an integral connection, etc.; the first connecting strip 5 is connected to a first plug block 51 inserted in the second connecting strip 6, and / or the second connecting strip 6 is connected to a second plug block 61 inserted in the first connecting strip 5, and the above-mentioned limit groove 111 can be opened on the outer surface of the first arc plate 11 or the second arc plate 12, for example, the limit groove 111 is opened at the end of the outer surface of the first arc plate 11.

[0047] In a specific embodiment, Figure 3 and Figure 4 As shown, the first connecting strip 5 and the second connecting strip 6 can both be straight strips, and one or more first connecting strips 5 and the second connecting strip 6 can be provided. For example, one first connecting strip 5 and one second connecting strip 6 are respectively provided, and the first connecting strip 5 and the second connecting strip 6 are both provided in the barrel shaft 1 at the same end of the barrel shaft 1. For another example, two first connecting strips 5 and two second connecting strips 6 are respectively provided, and one first connecting strip 5 and one second connecting strip 6 are both provided in the barrel shaft 1 at one end of the barrel shaft 1, and another first connecting strip 5 and another second connecting strip 6 are both provided in the barrel shaft 1 at the other end of the barrel shaft 1. That is, the two first connecting strips 5 are symmetrically arranged at both ends of the barrel shaft 1, and the two second connecting strips 6 are symmetrically arranged at both ends of the barrel shaft 1. The first connecting strip 5 and the second connecting strip 6 are symmetrically arranged at both ends of the cylindrical shaft 1, and the first connecting strip 5 and the second connecting strip 6 in the same end of the cylindrical shaft 1 are connected to each other. The embodiment of the present application does not limit the specific number of the first connecting strip 5 and the second connecting strip 6; the length directions of the first connecting strip 5 and the second connecting strip 6 are parallel to the end face of the cylindrical shaft 1, and the length direction of the first connecting strip 5 and the length direction of the second connecting strip 6 are parallel; one end of the first connecting strip 5 is fixedly connected to the inner wall of the first arc plate 11, and one end of the second connecting strip 6 is fixedly connected to the inner wall of the second arc plate 12; the first plug block 51 is fixedly connected to the side of the first connecting strip 5 close to the second connecting strip 6, and the second plug block 61 is fixedly connected to the side of the second connecting strip 6 close to the first connecting strip 5.

[0048] In the embodiment of the present application, the connection between the two arc-shaped plates forming the cylindrical shaft 1 is achieved by plugging the first plug block 51 on the first connecting bar 5 into the second connecting bar 6, and plugging the second plug block 61 on the second connecting bar 6 into the first connecting bar 5. As a result, the possibility of relative movement between the first connecting bar 5 and the second connecting bar 6 is relatively small, which can make the connection between the two arc-shaped plates more secure. Therefore, the structure of the cylindrical shaft 1 is more stable and reliable.

[0049] In one possible implementation, Figure 1 and Figure 4 As shown, the first connecting bar 5 and the second connecting bar 6 are respectively located on both sides of the flexible circuit board 3; the first connecting bar 5 and / or the part of the flexible circuit board 3 located in the barrel shaft 1 are fixedly connected with a fixed bar block 7, and the fixed bar block 7 connected to the first connecting bar 5 is inserted in the part of the flexible circuit board 3 located in the barrel shaft 1, and the fixed bar block 7 connected to the part of the flexible circuit board 3 located in the barrel shaft 1 is inserted in the first connecting bar 5.

[0050] In the embodiment of the present application, the fixed bar block 7 connected to the first connecting bar 5 is inserted into the flexible circuit board 3, or the fixed bar block 7 connected to the flexible circuit board 3 is inserted into the first connecting bar 5, thereby, the fixed bar block 7 can connect the connection between the first connecting bar 5 and the flexible circuit board 3, and then the fixed bar block 7 can strengthen the connection between the flexible circuit board 3 and the barrel shaft 1, reducing the possibility of electrical connection failure caused by relative movement between the flexible circuit board 3 and the barrel shaft 1 during the curling and sliding of the module screen body 2.

[0051] In one possible implementation, Figure 1 As shown, the first connecting bar 5 and the second connecting bar 6 are parallel to each other, the first connecting bar 5 is in contact with the flexible circuit board 3 at one side thereof, and the second connecting bar 6 is in contact with the flexible circuit board 3 at one side thereof.

[0052] In the embodiment of the present application, the first connecting bar 5 and the second connecting bar 6 are both in contact with the flexible circuit board 3, thereby reducing the possibility of repeated collisions between the first connecting bar 5 and the second connecting bar 6 and the flexible circuit board 3 during the curling and sliding of the module screen 2, thereby reducing the possibility of damage to the flexible circuit board 3 and improving the life of the display device.

[0053] In one possible implementation, Figure 1 As shown, the first curved plate 11 is close to the end surface of the flexible circuit board 3 ( Figure 1 a) and the side of the first connecting strip 5 close to the flexible circuit board 3 ( Figure 1 b) in the same plane, the second curved plate 12 is close to the end surface of the flexible circuit board 3 ( Figure 1 c) and the side of the second connecting strip 6 close to the flexible circuit board 3 ( Figure 1 d) in the same plane.

[0054] In the embodiment of the present application, since the first connecting strip 5 and the second connecting strip 6 are respectively located on both sides of the flexible circuit board 3, the end surface of the first curved plate 11 close to the flexible circuit board 3 and the end surface of the second curved plate 12 close to the flexible circuit board 3 are respectively located on both sides of the flexible circuit board 3, and the end surface of the first curved plate 11 close to the flexible circuit board 3 and the side surface of the first connecting strip 5 close to the flexible circuit board 3 are on the same plane, and the end surface of the second curved plate 12 close to the flexible circuit board 3 and the side surface of the second connecting strip 6 close to the flexible circuit board 3 are on the same plane, so that the structure on both sides of the flexible circuit board 3 can be made smoother, and the possibility of damaging the flexible circuit board 3 by the structure on both sides of the flexible circuit board 3 during the curling and sliding of the module screen body 2 can be reduced. It can also be avoided as much as possible that the relative movement of the flexible circuit board 3 and the barrel shaft 1 caused by the structure on both sides of the flexible circuit board 3 during the curling and sliding of the module screen body 2 is large, thereby causing the electrical connection of the flexible circuit board 3 to fail.

[0055] Optionally, the module screen body 2 may be wound around the cylindrical shaft 1 for less than one cycle, equal to one cycle, or greater than one cycle, which is not limited in the embodiment of the present application.

[0056] In one possible implementation, Figure 6 As shown, the module screen body 2 is wound around the cylindrical shaft 1 for more than one circle ( Figure 6 Only a part of the module screen body 2 is shown in the figure. Based on this, the winding starting end 21 of the module screen body 2 is connected to the first end of the first arc-shaped plate 11, that is, the limiting strip 211 is inserted at the first end of the first arc-shaped plate 11. The first circle of the module screen body 2 wound outside the cylinder shaft 1 starts from the first end of the first arc-shaped plate 11, and is wound along the first arc-shaped plate 11 to the second end of the first arc-shaped plate 11, and then is wound to the second arc-shaped plate 12, wherein the first end and the second end of the first arc-shaped plate 11 are respectively the two ends of the first arc-shaped plate 11 along the circumferential direction of the cylinder shaft 1; the sum of the outer diameter of the first arc-shaped plate 11 and the thickness of the module screen body 2 is equal to the outer diameter of the second arc-shaped plate 12, as shown in FIG. Figure 6 As shown, d1 is the outer diameter of the first arc plate 11, h2 is the thickness of the module screen body 2, d2 is the outer diameter of the second arc plate 12, and d1+h2=d2.

[0057] In the embodiment of the present application, the sum of the outer diameter of the first curved plate 11 and the thickness of the module screen body 2 is equal to the outer diameter of the second curved plate 12. Therefore, when the module screen body 2 is wound around the cylindrical shaft 1 for the second circle, the junction between the winding starting end 21 of the module screen body 2 on the cylindrical shaft 1 and the second curved plate 12 is relatively smooth, with almost no protrusions or depressions, thereby minimizing the possibility that the module screen body 2 of the second circle is pushed up by the first circle of the screen body, causing display touch abnormalities of the module screen body 2, thereby improving the flatness of the module screen body 2, reducing the generation of creases, and optimizing the display effect of the display device.

[0058] An embodiment of the present application further provides a display terminal, which includes a terminal device body and a display device arranged on the terminal device body, and the display device may be the display device as described above.

[0059] An exemplary display terminal includes a terminal device body and a display device. The display device is disposed on the terminal device body and is electrically connected to the terminal device body. The display device is the display device described in the above embodiment, and is used to display static images or dynamic images.

[0060] Exemplarily, the above-mentioned display terminal can be implemented in the form of various electronic devices such as mobile phones, tablet computers, handheld computers, PADs, etc.

[0061] The above implementation methods are only used to illustrate the embodiments of the present application, and are not limitations on the embodiments of the present application. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present application. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present application. The scope of patent protection of the embodiments of the present application should be limited by the claims.

Claims

1. A display device, characterized in that: include: Cylinder shaft, module screen and flexible circuit board; The module screen body is wound outside the cylindrical shaft, and the winding start end of the module screen body is connected to the cylindrical shaft; The flexible circuit board passes through the wall of the cylinder shaft, one end of the flexible circuit board outside the cylinder shaft is connected to the winding starting end of the module screen body, and the part of the flexible circuit board inside the cylinder shaft is plug-fitted with the cylinder shaft.

2. The device according to claim 1, characterized in that The cylindrical shaft includes a plurality of arc-shaped plates; The plurality of arc-shaped plates are circumferentially distributed to form the cylindrical shaft, the adjacent arc-shaped plates are connected, and the flexible circuit board passes through the cylindrical wall of the cylindrical shaft between any two adjacent arc-shaped plates.

3. The device according to claim 2, characterized in that The plurality of arc-shaped plates are two arc-shaped plates; A first connecting strip and a second connecting strip connected to each other are arranged inside the cylindrical shaft, wherein the first connecting strip is connected to the first curved plate of the two curved plates, and the second connecting strip is connected to the second curved plate of the two curved plates; The first connecting bar is connected to a first plug-in block inserted in the second connecting bar, and / or the second connecting bar is connected to a second plug-in block inserted in the first connecting bar.

4. The device according to claim 3, characterized in that The first connecting bar and the second connecting bar are respectively located on two sides of the flexible circuit board; The first connecting strip and / or the part of the flexible circuit board located in the cylindrical shaft are connected with a fixed strip block, and the fixed strip block connected to the first connecting strip is inserted into the part of the flexible circuit board located in the cylindrical shaft, and the fixed strip block connected to the part of the flexible circuit board located in the cylindrical shaft is inserted in the first connecting strip.

5. The device according to claim 4, characterized in that The first connecting bar and the second connecting bar are parallel to each other. A side of the first connecting bar close to the flexible circuit board abuts against the flexible circuit board, and a side of the second connecting bar close to the flexible circuit board abuts against the flexible circuit board.

6. The device according to any one of claims 3 to 5, characterized in that: The first connecting bar and the second connecting bar are respectively located on two sides of the flexible circuit board; The end surface of the first curved plate close to the flexible circuit board and the side surface of the first connecting bar close to the flexible circuit board are on the same plane, and the end surface of the second curved plate close to the flexible circuit board and the side surface of the second connecting bar close to the flexible circuit board are on the same plane.

7. The device according to claim 3, characterized in that The module screen body is wound around the cylindrical shaft for more than one circle, and the winding starting end of the module screen body is connected to the first end of the first arc-shaped plate. The first circle of the module screen body being wound around the cylindrical shaft starts from the first end of the first arc-shaped plate, and is wound along the first arc-shaped plate to the second end of the first arc-shaped plate, and then is wound to the second arc-shaped plate. The sum of the outer diameter of the first arc-shaped plate and the thickness of the module screen body is equal to the outer diameter of the second arc-shaped plate.

8. The device according to claim 1, characterized in that The winding start end of the module screen body is connected to a limiting strip block, and the limiting strip block is inserted into the barrel shaft.

9. The device according to claim 8, characterized in that A glue groove is provided on the cylinder shaft near the winding start end of the module screen body; At least a part of the limiting strip is located in the glue groove, and a glue is provided in the glue groove to be bonded to the inner wall of the glue groove, the winding start end of the module screen body and the limiting strip.

10. The device according to claim 8 or 9, characterized in that The module screen body comprises a protective layer, a touch screen and a support layer, and the touch screen is located between the protective layer and the support layer; The limiting strip is connected to the supporting layer; One end of the flexible circuit board located outside the cylindrical shaft is electrically connected to the touch display screen at the winding starting end of the module screen body.

11. A display terminal, characterized in that: The display terminal comprises a terminal device body, and a display apparatus as claimed in any one of claims 1 to 10 arranged on the terminal device body.

Images