A bending test device for flexible screen module

Abstract

The present application provides a bending test device for a flexible screen module, which includes: a first support plate, including a first plate body and a plurality of first support blocks detachably mounted on the first plate body, the plurality of first support blocks together forming a first support surface; a second support plate, including a second plate body and a plurality of second support blocks detachably mounted on the second plate body, the plurality of second support blocks together forming a second support surface, the second support surface and the first support surface are used to fix the flexible screen module, and the second support surface and the first support surface are in the same plane in an unfolded state; and a rotating assembly, used to connect the first support plate and the second support plate, the first support plate and the second support plate can both rotate around the rotating assembly to switch between a flattened state and a folded state. The bending test device can solve the technical problem that when the sizes of the flexible display modules to be tested are different, there are many types of bending test fixtures and high management costs.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a bending test device for a flexible screen module used for performing a bending test on a display panel. Background Art

[0002] The flexible display module is a multi-layer membrane structure. During the bending process, relative displacement will occur between the layers of the flexible display module product. If there are problems in the bonding process of each membrane structure, various abnormal problems such as membrane tearing will occur during the bending process, resulting in abnormal screen display. Therefore, the bending life of flexible display module products is tested during the product development stage to ensure their functional reliability.

[0003] The bending test fixture is used to assist the flexible display module in completing the bending life test to ensure the functional reliability of the flexible display module product. Due to the different sizes of each flexible display module, the back wiring and the size of the auxiliary materials, each product needs to develop a corresponding set of fixtures for bending life testing. Different display modules cannot share bending test fixtures, resulting in a wide variety of bending test fixtures, high management costs, and only scrapping after the product life cycle ends, which has high development costs.

[0004] Therefore, there are defects in the prior art and they need to be solved urgently. Summary of the invention

[0005] The present application provides a bending test device for a flexible screen module, which can solve the technical problem that when the sizes of the flexible display modules to be tested are different, there are many types of bending test fixtures and high management costs.

[0006] To solve the above problems, the technical solutions provided by this application are as follows:

[0007] A bending test device for a flexible screen module, comprising:

[0008] A first support plate, comprising a first support surface;

[0009] A second support plate, comprising a second support surface, wherein the second support surface and the first support surface are used to fix the flexible screen module; the second support surface and the first support surface are in the same plane when not unfolded, wherein at least one of the first support plate and the second support plate comprises a plate body and a plurality of support blocks detachably mounted on the plate body; and

[0010] The rotating assembly is used to connect the first supporting plate and the second supporting plate. Both the first supporting plate and the second supporting plate can rotate around the rotating assembly to switch between a flattened state and a folded state.

[0011] In some embodiments of the present invention, the first support plate and the second support plate both include the plate body and a plurality of support blocks detachably mounted on the plate body, the support blocks are arranged in an array on the plate body, the plurality of support blocks included in the first support plate together form a first support surface, and the plurality of support blocks included in the second support plate together form a second support surface.

[0012] In some embodiments of the present invention, each of the support blocks has the same shape and size, and the support blocks are square, circular, elliptical or regular polygonal.

[0013] In some embodiments of the present invention, the support block and the plate body may be fixed by screw locking, magnetic fixation or card insertion.

[0014] In some embodiments of the present invention, the plate body includes a first surface and a second surface facing each other, the first surface is sunken toward the second surface to form a sinking platform, and the support block is located on the sinking platform.

[0015] In some embodiments of the present invention, the sinker of the first support plate is connected to the sinker of the second support plate, and a first bending shape control block is provided on the side of the sinker of the first support plate close to the sinker of the second support plate, and a second bending shape control block is provided on the side of the sinker of the second support plate close to the sinker of the first support plate, and the plane determined by the first bending shape control block and the second bending shape control block is flush with the first support surface or the second support surface.

[0016] In some embodiments of the present invention, the first bending shape control block is detachably connected to the plate body of the first support plate, and the second bending shape control block is detachably connected to the plate body of the second support plate.

[0017] In some embodiments of the present invention, the rotating assembly includes a first connecting member and a second connecting member connected to each other, the first connecting member is connected to an end of the first support plate, and the second connecting member is connected to an end of the second support plate body.

[0018] In some embodiments of the present invention, the first connecting member is connected to the second connecting member via a pivot connection or gear meshing connection.

[0019] In some embodiments of the present invention, the area occupied by the plurality of support blocks together is not less than 3 / 4 of the total area of ​​the plate.

[0020] The beneficial effects of the present application are as follows: the bending test equipment of the flexible screen module provided by the present application comprises a first support plate, a second support plate and a rotating assembly for connecting the first support plate and the second support plate; since the first support plate comprises a first plate body and a plurality of first support blocks detachably mounted on the first plate body, the plurality of first support blocks together form a first support surface; the second support plate comprises a second plate body and a plurality of second support blocks detachably mounted on the second plate body, the plurality of second support blocks together form a second support surface, the second support surface and the first support surface are used to fix the flexible screen module, and the second support surface and the first support surface are in the same plane in an unfolded state; when the flexible display module is arranged on the bending test equipment of the flexible screen module, for flexible display modules of different sizes and different back designs, by disassembling part of the first support blocks / second support blocks to achieve avoidance of the protruding position of the flexible display module, a set of jigs can be used for flexible display modules of different sizes and different back designs for bending life tests, thereby reducing the development cost of the bending jigs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0022] Figure 1 A schematic diagram of the structure of a bending test device for a flexible screen module provided in this application;

[0023] Figure 2 for Figure 1 The state diagram of the bending test equipment of the flexible screen module provided is flipped 180 degrees;

[0024] Figure 3 for Figure 1 An exploded view of the bending test equipment for the provided flexible screen module;

[0025] Figure 4 for Figure 3 The bending test equipment is flipped 180 degrees.

[0026] Figure 5 for Figure 1 A diagram showing the folding state of a bending test device for a flexible screen module provided;

[0027] Figure 6 for Figure 1 A cross-sectional view of a bending test device for a flexible screen module along the AA direction is provided.

[0028] Description of Reference Numerals

[0029] 100-flexible screen module bending test equipment; 110-nut; 112-screw hole;

[0030] 1-first support plate; 2-second support plate; 3-rotating assembly; 11-avoidance area;

[0031] 10-first plate; 12-first support block; 101-first support surface;

[0032] 20-second plate; 22-second support block; 201-second support surface;

[0033] 14-first surface; 16-second surface; 103-end;

[0034] 18-sinking platform; 4-first bending shape control block; 5-second bending shape control block;

[0035] 30 - mounting seat; 32 - first connecting member; 34 - second connecting member. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely 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, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0038] The present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not indicate the relationship between the various embodiments and / or settings discussed. The following is a detailed description of the bending test device of the flexible screen module of the present application in conjunction with specific embodiments.

[0039] See also Figures 1 to 4 , Figures 1 to 4A bending test device 100 for a flexible screen module provided in the present application is used to perform a bending life test on a flexible display module. The flexible display module may include an organic light-emitting flexible display module. The flexible display module may be a foldable display module. The flexible display module may include a flexible substrate, a drive array layer, an organic light-emitting layer, and a thin film encapsulation layer, etc., which are stacked in sequence. The bending test device 100 for the flexible screen module includes: a first support plate 1, a second support plate 2, a rotating assembly 3, a first bending shape control block 4, and a second bending shape control block 5.

[0040] At least one of the first support plate 1 and the second support plate 2 includes a plate body and a plurality of support blocks detachably mounted on the plate body, so that the bending test equipment 100 of the flexible screen module can avoid the protruding position of the flexible display module, thereby targeting flexible display modules of different sizes and different back designs. In this embodiment, the first support plate 1 and the second support plate 2 have the same structure, both including a plate body and a plurality of support blocks detachably mounted on the plate body, so that when in use, there is no need to consider the fixing direction of the flexible display panel. Specifically, the first support plate 1 includes a first plate body 10 and a plurality of first support blocks 12 detachably mounted on the first plate body 10, and the plurality of first support blocks 12 together form a first support surface 101.

[0041] The second support plate 2 includes a second plate body 20 and a plurality of second support blocks 22 detachably mounted on the second plate body 20, wherein the plurality of second support blocks 22 together form a second support surface 201, and the second support surface 201 and the first support surface 101 are used to fix the flexible screen module, and the second support surface 201 and the first support surface 101 are in the same plane when in an unfolded state.

[0042] Since the first support block 12 and the second support block 22 are respectively detachably arranged on the first plate body 10 and the second plate body 20, when the flexible display module is arranged on the bending test device 100 of the flexible screen module, for flexible display modules of different sizes and different back designs, the protruding position of the flexible display module can be avoided by partially disassembling the first support block 12 / the second support block 22. Therefore, for flexible display modules of different sizes and different back designs, a set of jigs can be used to perform bending life tests, thereby reducing the development cost of the bending jigs.

[0043] The shape and size of the first support block 12 are the same as those of the second support block 22, and the first support block 12 is a rectangle, a square, a circle, an ellipse or a regular polygon. If the first support block 12 is a rectangle or a square, the chamfer of the first support block 12 is preferably an arc to facilitate the disassembly of the first support block 12. Since the bending test device 100 of the flexible screen module is mainly used for the bending test of the flexible display module of the mobile terminal, the size of the first support block 12 can be selected to be in the range of 0.5 cm to 1.2 cm in length and width.

[0044] The first support block 12 and the first plate body 10 can be fixed by screwing, magnetic attraction or clamping. The second support block 22 and the second plate body 20 can also be fixed by screwing, magnetic attraction or clamping.

[0045] If the first support block 12 and the first plate 10 are fixed by magnetic attraction, a magnetic material can be selected to form the first plate 10 and the first support block 12. If the first support block 12 and the first plate 10 are fixed by inserting, the first support block 12 and the first plate 10 can form a convex-concave matching structure.

[0046] In this embodiment, the first support block 12 and the first plate body 10 are fixed by screwing. For example, in this embodiment, a plurality of screw holes 112 are provided on the first plate body 10, and each first support block 12 is provided with a fixing hole matched with the screw hole 112, so that the nut 110 can pass through the screw hole 112 and the fixing hole to fix each first support block 12 on the first plate body 10. The nut 110 does not protrude from the surface where the first plate body 10 is located.

[0047] In this embodiment, the first support plate 1 and the second support plate 2 can both be made of acrylic material, which can achieve light weight and low cost of the bending test equipment 100 for the flexible screen module.

[0048] In this embodiment, the first support blocks 12 are arranged in an array on the first plate 10, and the second support blocks 22 are arranged in an array on the second plate 20. The area occupied by the first support blocks 12 is not less than 3 / 4 of the total area of ​​the first support plate 1; the area occupied by the second support blocks 22 is not less than 3 / 4 of the total area of ​​the second support plate 2. By controlling the proportion of the total area occupied by the first support blocks 12 and the second support blocks 22 respectively, it means that more positions of the avoidance area 11 of the protruding back of the flexible display module can be used, so that the bending test device 100 of the flexible screen module can adapt to flexible display modules of more sizes.

[0049] In this embodiment, the first plate body 10 and the second plate body 20 both include a first surface 14 and a second surface 16 facing each other, the first surface 14 sinks toward the second surface 16 to form a sinking platform 18, the first support block 12 is located on the sinking platform 18 of the first plate body 10, and the second support block 22 is located on the sinking platform 18 of the second plate body 20. Such a configuration can reduce the overall thickness of the bending test device 100 of the flexible screen module. Preferably, the thickness of the first support block 12 and the sinking platform 18 is equal to the thickness between the first surface 14 and the second surface 16, so as to achieve the overall flatness of the bending test device 100 of the flexible screen module.

[0050] In this embodiment, the sinker 18 of the first plate body 10 is connected with the sinker 18 of the second plate body 20, the first bending form control block 4 is arranged on the side of the sinker 18 of the first plate body 10 close to the sinker 18 of the second plate body 20, the second bending form control block 5 is arranged on the side of the sinker 18 of the second plate body 20 close to the sinker 18 of the first plate body 10, and the plane determined by the first bending form control block 4 and the second bending form control block 5 is flush with the first support surface 101 or the second support surface 201.

[0051] In this embodiment, the first bending shape control block 4 is detachably connected to the first plate body 10, and the second bending shape control block 5 is detachably connected to the second plate body 20. At present, the bending modes of foldable mobile phones are divided into inward folding and outward folding. The bending test device 100 of the flexible screen module provided in this application is used for the inward folding of the flexible display module, and the inward folding bending shape is divided into U-shaped, water drop-shaped and wedge-shaped. Therefore, to achieve different inward folding states of the flexible display module, it is only necessary to replace the first bending shape control block 4 and the second bending shape control block 5 of different shapes.

[0052] The rotating assembly 3 is used to connect the first supporting plate 1 and the second supporting plate 2. The first supporting plate 1 and the second supporting plate 2 can both rotate around the rotating assembly 3 to switch between a flattened state and a folded state.

[0053] In this embodiment, the rotating assembly 3 includes a first connecting member 32 and a second connecting member 34 connected to each other. The first connecting member 32 is connected to the end of the first plate body 10 , and the second connecting member 34 is connected to the end of the second plate body 20 .

[0054] The first connecting member 32 and the second connecting member 34 are connected by a pivot or gear meshing. In this embodiment, the first connecting member 32 and the second connecting member 34 are connected by gear meshing. More specifically, in this embodiment, the rotating assembly 3 includes a mounting seat 30, a first connecting member 32 and a second connecting member 34, one end of the first connecting member 32 is connected to the end 103 of the first plate body 10, one end of the second connecting member 34 is connected to the end of the second plate body 20, and the ends of the first connecting member 32 and the second connecting member 34 close to each other are gears, and the axial ends of the gears are connected to the mounting seat 30.

[0055] Please also read Figure 5 and Figure 6 , Figure 5 A structural diagram of a bending test device 100 for a flexible screen module in a folded state when in use; Figure 6 It is a cross-sectional view along the AA direction when the bending test device 100 of the flexible screen module is in a folded state. Since the non-display area of ​​the flexible display module other than the display area is provided with a flexible circuit board and a control chip, etc., this part of the area will be uneven. Therefore, when the bending test device 100 of the flexible screen module is in use, the first support block 12 / the second support block 22 is detachably arranged, so that the first support block 12 / the second support block 22 corresponding to the uneven area can be removed, and then the flexible display module is fixed on the bending test device 100 of the flexible screen module. The uneven area will be located in the avoidance area 11 formed by the removed first support block 12 / the second support block 22, and then the flexible display module is subjected to subsequent bending life tests. It can be understood that for flexible display modules of different sizes, the first support blocks 12 / the second support blocks 22 at different positions and in different numbers can be removed to keep them flat on the bending test device 100 of the flexible screen module. In this embodiment, the flexible display module and the bending test device 100 of the flexible screen module can be fixed by an easy-pull adhesive. After the test, the flexible display panel is returned to the flat position, the easy-pull adhesive is removed, and the flexible display panel is taken out from the bending test device 100 of the flexible screen module. That is, for flexible display modules of different sizes and different back designs, a set of jigs can be used to perform bending life tests, which reduces the development cost of the bending jigs.

[0056] In summary, the bending test device 100 of the flexible screen module provided in the present application includes a first support plate 1, a second support plate 2 and a rotating assembly 3 for connecting the first support plate 1 and the second support plate 2. Since the first support plate 1 includes a first plate body 10 and a plurality of first support blocks 12 detachably mounted on the first plate body 10, the plurality of first support blocks 12 together form a first support surface 101; the second support plate 2 includes a second plate body 20 and a plurality of second support blocks 22 detachably mounted on the second plate body 20, the plurality of second support blocks 22 together form a second support surface 201, and the second support surface 201 and the first support surface 101 are used to fix the flexible screen module group, and the second support surface 201 and the first support surface 101 are in the same plane in the unfolded state; when the flexible display module is arranged on the bending test device 100 of the flexible screen module, for flexible display modules of different sizes and different back designs, the protruding position of the flexible display module is avoided by disassembling part of the first support block 12 / the second support block 22 to ensure the flatness of the flexible display module on the bending test device 100 of the flexible screen module, so that for flexible display modules of different sizes and different back designs, a set of jigs can be used to perform bending life tests, thereby improving the application scope of the bending test device 100 of the flexible screen module and reducing the development cost of the bending jigs.

[0057] In summary, although the present application has been disclosed as above with preferred embodiments, the above preferred embodiments are not intended to limit the present application. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined in the claims.

Claims

1. A bending test device for a flexible screen module, characterized in that: include: A first support plate, comprising a first support surface; A second supporting plate, comprising a second supporting surface, wherein the second supporting surface and the first supporting surface are used to fix the flexible screen module; The second support surface and the first support surface are in the same plane in an unfolded state, wherein at least one of the first support plate and the second support plate comprises a plate body and a plurality of support blocks detachably mounted on the plate body; and A rotating assembly, used to connect the first support plate and the second support plate, wherein the first support plate and the second support plate can rotate around the rotating assembly to switch between a flattened state and a folded state; The first support plate and the second support plate both include the plate body and a plurality of support blocks detachably mounted on the plate body, the support blocks are arranged in an array on the plate body, and two adjacent support blocks are arranged adjacent to each other, the plurality of support blocks included in the first support plate jointly form a first support surface, and the first support surface is arranged in an entire surface, the plurality of support blocks included in the second support plate jointly form a second support surface, and the second support surface is arranged in an entire surface, the first support surface and the second support surface are both used to fix the flexible display screen module, and the plurality of support blocks included in the first support plate are partially detachable and / or the plurality of support blocks included in the second support plate are partially detachable, so as to avoid the protruding position of the flexible display screen module; Among them, the shape and size of each support block are the same, and the support block is square, round, elliptical or regular polygonal; the area occupied by multiple support blocks together is not less than 3 / 4 of the total area of ​​the plate.

2. The bending test device for the flexible screen module according to claim 1, characterized in that: The support block and the plate body are fixed by screw locking, magnetic fixation or embedded clamping.

3. The bending test device for the flexible screen module according to claim 1, characterized in that: The plate body includes a first surface and a second surface facing each other. The first surface sinks toward the second surface to form a sinking platform. The support block is located on the sinking platform.

4. The bending test device for the flexible screen module according to claim 3, characterized in that: The sinker of the first support plate is connected with the sinker of the second support plate, and a first bending shape control block is provided on the side of the sinker of the first support plate close to the sinker of the second support plate, and a second bending shape control block is provided on the side of the sinker of the second support plate close to the sinker of the first support plate, and the plane determined by the first bending shape control block and the second bending shape control block is flush with the first support surface or the second support surface.

5. The bending test device for the flexible screen module according to claim 4, characterized in that: The first bending shape control block is detachably connected to the plate body of the first support plate, and the second bending shape control block is detachably connected to the plate body of the second support plate.

6. The bending test device for the flexible screen module according to claim 1, characterized in that: The rotating assembly includes a first connecting member and a second connecting member connected to each other, the first connecting member is connected to the end of the first supporting plate, and the second connecting member is connected to the end of the second supporting plate body.

7. The bending test device for the flexible screen module according to claim 6, characterized in that: The first connecting member is connected to the second connecting member via a pivot connection or gear meshing connection.

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