CN114034577B - Flexible screen bending test fixture and test equipment - Google Patents
Flexible screen bending test fixture and test equipment Download PDFInfo
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- CN114034577B CN114034577B CN202111318093.9A CN202111318093A CN114034577B CN 114034577 B CN114034577 B CN 114034577B CN 202111318093 A CN202111318093 A CN 202111318093A CN 114034577 B CN114034577 B CN 114034577B
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- 238000005452 bending Methods 0.000 title claims abstract description 161
- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 238000003825 pressing Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 4
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application provides a flexible screen bending test fixture and test equipment, relates to the technical field of flexible screen testing, and is used for solving the technical problem that the test result of the conventional bending test equipment is inaccurate; the first fixing plate and the second fixing plate are respectively used for being fixedly connected with non-bending areas on two sides of the bending area of the flexible screen, and the first fixing plate and the second fixing plate can move relatively to bend the flexible screen; the bendable structure is configured to be attached to a bending region of the flexible screen when the flexible screen is bent. The hinge in the actual product can be simulated to the bendable structure, and in the bending process, the bendable structure forms a support to the bending area of the flexible screen, so that the bending shape and the stress condition of the bending area in the testing process are closer to those of the bending area when the bending structure is applied to the actual product, and the accuracy of the testing result is improved.
Description
Technical Field
The application relates to the technical field of flexible screen testing, in particular to a flexible screen bending testing jig and testing equipment.
Background
With the development of display technology, flexible screens are widely used in portable devices because of their light weight, low liability to breakage, deformability, etc. In the development and production processes of the flexible screen, bending tests are required to be carried out on the flexible screen so as to evaluate the bending performance of the flexible screen.
When the bending test is performed on the flexible screen, bending test equipment is generally utilized to simulate the bending path of the flexible screen in the actual application scene, and repeated bending is performed on the flexible screen.
However, the bending test result obtained by the bending test device for the flexible screen is not accurate enough, and the bending performance of the flexible screen cannot be truly reflected.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a flexible screen bending test fixture and test equipment, which can improve accuracy of a flexible screen bending test result.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
The first aspect of the embodiment of the application provides a flexible screen bending test fixture, which comprises a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are connected through a bendable structure; the first fixing plate and the second fixing plate are respectively used for being fixedly connected with non-bending areas on two sides of a bending area of the flexible screen, and can be in an unfolding state to unfold the flexible screen and in a folding state to bend the flexible screen along the bending area; the bendable structure is configured to be attached to a bending region of the flexible screen when the flexible screen is bent.
The bending test fixture for the flexible screen provided by the embodiment of the application comprises the first fixing plate and the second fixing plate, wherein when a bending test is carried out, non-bending areas on two sides of a bending area of the flexible screen are respectively fixed on the first fixing plate and the second fixing plate, and the flexible screen is unfolded or bent through relative movement between the first fixing plate and the second fixing plate. The first fixing plate and the second fixing plate are connected through the bendable structure, the bendable structure can simulate a hinge in an actual product, in the bending process, the bendable structure is attached to the bending area of the flexible screen so as to form a support for the bending area of the flexible screen, and therefore the bending shape and the stress condition of the bending area in the testing process are closer to those of the actual product, and the accuracy of the testing result is improved.
In one possible implementation manner, the bendable structure includes at least one link group, each link group includes a plurality of links arranged along a first direction, adjacent links are rotationally connected, and the links at two ends are respectively connected with the first fixing plate and the second fixing plate.
In one possible implementation manner, in two adjacent links of the same link group, one link includes a first connection portion, the other link includes a second connection portion, the first connection portion and the second connection portion are arranged along a second direction perpendicular to the first direction, and the bendable structure further includes a first pin shaft penetrating through the first connection portion and the second connection portion.
In one possible implementation manner, the first fixing plate is provided with a third connecting portion, the chain connected with the first fixing plate is provided with a fourth connecting portion, the third connecting portion and the fourth connecting portion are arranged along a second direction perpendicular to the first direction, and the bendable structure further comprises a second pin shaft penetrating through the third connecting portion and the fourth connecting portion.
In one possible implementation manner, the second fixing plate is provided with a fifth connection portion, the chain connected with the second fixing plate is provided with a sixth connection portion, the fifth connection portion and the sixth connection portion are arranged along a second direction perpendicular to the first direction, and the bendable structure further includes a third pin shaft penetrating through the fifth connection portion and the sixth connection portion.
In one possible implementation, the bendable structure includes a plurality of the link groups, and the plurality of link groups are arranged along a second direction perpendicular to the first direction.
In one possible implementation manner, an adhesive layer for adhering to the flexible screen is arranged on the first fixing plate and/or the second fixing plate; or the first fixing plate and/or the second fixing plate is/are provided with a pressing plate used for pressing the flexible screen.
In one possible implementation, the first fixing plate and/or the second fixing plate are/is provided with a positioning structure for positioning the flexible screen.
In one possible implementation, the positioning structure includes a positioning slot.
The second aspect of the embodiment of the application provides flexible screen bending test equipment, which comprises a driving device and the flexible screen bending test jig, wherein the driving device is used for driving the first fixing plate and the second fixing plate to be in an unfolding state or a folding state.
Since the flexible screen bending test apparatus includes the flexible screen bending test jig of the first aspect described above, the flexible screen bending test apparatus also has the same advantages as described above, and reference is made to the above for specific description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a bending test apparatus for flattening a flexible screen according to the related art;
FIG. 2 is a schematic diagram of a bending test apparatus for bending a flexible screen according to the related art;
FIG. 3 is a front view of the flexible bending test fixture according to the embodiment of the present application in a flattened state;
FIG. 4 is a front view of a flexible bending test fixture according to an embodiment of the present application in a folded state;
FIG. 5 is a top view of a flexible bending test fixture according to an embodiment of the present application in a flattened state;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a partial enlarged view at D in FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 5 at E;
Fig. 9 is a schematic structural diagram of bending test equipment according to an embodiment of the application.
Reference numerals illustrate:
100-flexible screen; 101-a kink zone;
102-non-inflection region; 200-a first platform;
300-a second platform; 10-a first fixing plate;
11-a third connection; 20-a second fixing plate;
21-a fifth connection; 30-a bendable structure;
31-linkage group; 311-linking;
3111-a first connection; 3112-a second connection;
3113-fourth connections; 3114-sixth connections;
32-a first pin; 33-a second pin;
34-a third pin; 40-first connecting arm.
Detailed Description
As described in the background art, in the related art, the bending test device performs the bending test on the flexible screen to obtain a test result that is not accurate enough to truly reflect the bending performance of the flexible screen, and the inventor of the present application has found that, as shown in fig. 1 and 2, the bending test device of the related art includes a first platform 200 and a second platform 300, and a space region is provided between the first platform 200 and the second platform 300. When the bending test is performed on the flexible screen 100, the non-bending areas 102 on two sides of the bending area 101 of the flexible screen 100 are respectively fixed on the first platform 200 and the second platform 300, and the first platform 200 and the second platform 300 relatively move, so that the flexible screen 100 fixed on the first platform 200 and the second platform is in different states, for example, fig. 1 shows a schematic view of the flexible screen in a flattened state, and fig. 2 shows a schematic view of the flexible screen in a bent state.
When the bending test device is used to bend the flexible screen 100, the bending region 101 of the flexible screen 100 is located in the interval region between the first platform 200 and the second platform 300, so that the bending region 101 of the flexible screen 100 is only subjected to external forces at two end positions (point a and point B in fig. 1) during bending, and other regions are not subjected to external forces, and after bending, the bending region 101 forms a water-drop-shaped structure as shown in fig. 2.
When the flexible screen 100 is actually applied to a mobile phone or other equipment, the bending area 101 of the flexible screen 100 is correspondingly provided with a hinge, and the hinge is attached to the bending area 101 in the process of bending the flexible screen 100, so that a certain supporting effect is formed on the bending area 101, and after the flexible screen 100 is bent, the bending area 101 forms a specific shape under the action of the hinge.
According to the analysis, when the bending test equipment in the related art is used for testing the flexible screen 100, the bending shape of the bending region 101 of the flexible screen 100 and the stress condition in the bending process are inconsistent with the actual product, so that the test result is inaccurate, and the bending performance of the flexible screen 100 cannot be truly reflected.
According to the flexible bending test fixture, the bendable structure is arranged between the first fixing plate and the second fixing plate, which are used for fixing the non-bending area of the flexible screen, and can simulate a hinge in an actual product when the flexible screen is subjected to bending test, and support is provided for the bending area of the flexible screen, so that the bending shape and stress condition of the bending area in the test process are closer to those of the bending area when the flexible screen is applied to the actual product, and the accuracy of the test result is improved.
In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The flexible screen bending test equipment provided by the embodiment of the application comprises a flexible screen bending test jig and a driving device, wherein the flexible screen bending test jig is used for fixing a flexible screen, and the driving device is used for driving the flexible screen bending test jig to act so as to carry out bending test on the flexible screen fixed on the flexible screen bending test jig.
As shown in fig. 3 and 4, the bending test fixture for the flexible screen comprises a first fixing plate 10 and a second fixing plate 20, and the first fixing plate 10 and the second fixing plate 20 are connected through a bendable structure 30. The first fixing plate 10 and the second fixing plate 20 are respectively used for being fixedly connected with non-bending areas 102 on two sides of a bending area 101 of the flexible screen 100, the driving device can drive the first fixing plate 10 and the second fixing plate 20 to be in an unfolding state or a folding state, the first fixing plate 10 and the second fixing plate 20 unfold the flexible screen 100 in the unfolding state, and the first fixing plate 10 and the second fixing plate 20 bend the flexible screen 100 along the bending area 101 of the flexible screen 100 in the folding state, so that bending test of the flexible screen 100 is achieved.
Fig. 3 is a schematic diagram of the flexible screen bending test fixture when the flexible screen is unfolded, and in this state (hereinafter referred to as the unfolded state), the fixing surface on the first fixing plate 10 for fixing the flexible screen 100 is in the same plane as the fixing surface on the second fixing plate 20 for fixing the flexible screen 100. Fig. 4 is a schematic diagram of the bending test fixture for the flexible screen when bending the flexible screen, in this state (hereinafter referred to as a folded state), the fixing surface on the first fixing plate 10 for fixing the flexible screen 100 and the fixing surface on the second fixing plate 20 for fixing the flexible screen 100 are parallel to each other, and the bendable structure 30 is driven by the first fixing plate 10 and the second fixing plate 20 to bend and attach to the bending region 101 of the flexible screen 100 so as to support the bending region 101 of the flexible screen 100.
It can be understood that the first fixing plate 10 and the second fixing plate 20 can perform relative movement, that is, the first fixing plate 10 is kept still, the second fixing plate 20 is turned towards the direction close to the first fixing plate 10 to bend the flexible screen 100, or the first fixing plate 10 and the second fixing plate 20 are turned towards the direction close to each other to bend the flexible screen 100.
In the flexible screen bending test fixture provided in the above embodiment, the first fixing plate 10 and the second fixing plate 20 are connected through the bendable structure 30, the bendable structure 30 can simulate a hinge in an actual product, in the bending process, the bendable structure 30 is attached to the bending area 101 of the flexible screen 100, so as to support the bending area 101 of the flexible screen 100, and therefore the bending shape and stress condition of the bending area 101 in the test process are closer to those of the bending area 101 when applied to the actual product, and the accuracy of the test result is improved.
The materials of the first and second fixing plates 10 and 20 are not limited, for example, the first and second fixing plates 10 and 20 may be steel plates, thereby facilitating the processing of the first and second fixing plates 10 and 20. For another example, the first fixing plate 10 and the second fixing plate 20 are made of an aluminum-magnesium alloy material, and the aluminum-magnesium alloy material has good rigidity and is not easy to deform after long-term use, so as to ensure the accuracy of bending test on the flexible screen 100.
The bendable structure 30 refers to a structure that is bent under the driving of the first and second fixing plates 10 and 20 when the first and second fixing plates 10 and 20 bend the flexible screen 100, and is unfolded under the driving of the first and second fixing plates 10 and 20 when the first and second fixing plates 10 and 20 flatten the flexible screen 100. When the flexible screen is bent, the bendable structure 30 is attached to the bending area 101 of the flexible screen 100, and may be partially attached to the bending area 101 or completely attached to the flexible screen.
In an alternative embodiment, the bendable structure 30 is configured to be identical to a hinge in an actual product, so that the bending shape and stress condition of the bending region 101 during the test are closer to those of the actual product, and the accuracy of the test result is further improved.
In another alternative embodiment, as shown in fig. 5, the bendable structure 30 includes at least one link group 31, each link group 31 includes a plurality of links 311 arranged along a first direction, the links 311 are rotatably connected to each other, and the links 311 at both ends are respectively connected to the first fixing plate 10 and the second fixing plate 20. The first direction refers to a direction (left-right direction in fig. 5) in which the first fixing plate 10 and the second fixing plate 20 are opposite in the flattened state, and the plurality of links 311 are sequentially arranged along the direction of the first fixing plate 10 toward the second fixing plate 20.
In the above embodiment, the link group 31 is disposed between the first fixing plate 10 and the second fixing plate 20, and when the first fixing plate 10 and the second fixing plate 20 move relatively, the first fixing plate 10 and the second fixing plate 20 drive the link group 31 to bend, and the link group 31 simulates the hinge in the actual product to support the bending region 101 of the flexible screen 100, so that the deformation and stress of the bending region 101 of the flexible screen 100 in the testing process are closer to those of the actual product.
The link group 31 is adopted as the bendable structure 30 to support the bending area 101, so that the structure is simple and the cost is low. In addition, the shape of the bent link group 31 can be changed by adjusting the number of links 311 in the link group 31 and the dimension of each link 311 in the first direction, so as to adapt to the shape of the bending region 101 of different flexible panels 100.
In the same link group 31, the adjacent links 311 may form a rotational connection through any connection structure, for example, in an alternative embodiment, a shaft sleeve is disposed on one link 311 of the adjacent two links 311, and a rotating shaft is disposed on the other link 311 and rotatably disposed in the shaft sleeve, so as to implement the relative rotation of the two links 311. In another embodiment, as shown in fig. 6, there is an overlapping area between two adjacent links 311 of the same link group 31, and the overlapping area is provided with a first pin 32 penetrating through the two links 311, specifically, in the two adjacent links 311 of the same link group 31, one link 311 includes a first connection part 3111 located at the overlapping area, and the other link 311 includes a second connection part 3112 located at the overlapping area, the first connection part 3111 and the second connection part 3112 are arranged along a second direction (up-down direction in fig. 5) perpendicular to the first direction, and the first pin 32 penetrates through the first connection part 3111 and the second connection part 3112.
The first connection portion 3111 and the second connection portion 3112 are preferably columnar, and shaft holes are provided in the first connection portion 3111 and the second connection portion 3112, axes of the shaft holes in the first connection portion 3111 and the shaft holes in the second connection portion 3112 coincide, and the first pin shaft 32 is inserted into the shaft holes in the first connection portion 3111 and the second connection portion 3112, so that the first connection portion 3111 and the second connection portion 3112 can both rotate relative to the first pin shaft 32.
By the above design, the assembly and disassembly of the links 311 are more convenient, so that the assembly efficiency of the flexible screen bending test fixture is improved, the number of the links 311 in the link group 31 can be conveniently adjusted, and the links 311 in the link group 31 can be conveniently replaced, so as to meet the test requirements of different flexible screens 100.
For example, when the bending test fixture for the flexible screen 100 with the bending area width W1 performs the bending test, the number of links in one link group 31 is N1. When the flexible screen 100 to be tested becomes a flexible screen 100 having a bending area width W2 and W2 is greater than W1, the number of links in the link group 31 may be increased to N2. When the flexible screen 100 to be tested becomes a flexible screen 100 having a bending area width W3 and W3 is smaller than W1, the number of links in the link group 31 can be reduced to N3.
For another example, when the bending test fixture of the flexible screen 100 with the bending area width W1 performs the bending test, the dimensions of each link 311 in one link group 31 in the first direction are the same and D1. When the flexible screen 100 to be tested is changed into a flexible screen 100 with a bending area width W2 and W2 is larger than W1, part of the links 311 in the link group 31 may be replaced with links 311 with a dimension D2 in the first direction and D2 is larger than D1. When the flexible screen 100 to be tested is changed into a flexible screen 100 with a bending area width W3 and W3 is smaller than W1, part of the links 311 in the link group 31 may be replaced with the links 311 with a dimension D3 in the first direction and D3 is smaller than D1.
The specific structure of the link 311 is not limited, and for example, it may be provided as a plate-like structure extending in the second direction, thereby simplifying the bendable structure. As another example, as shown in FIG. 5, the link 311 has an elongated structure extending in a first direction. Further preferably, a plurality of link groups 31 are disposed in the second direction, so that the bending movement of the bendable structure 30 is more flexible, the problem of jamming is avoided, and the links 311 have smaller dimensions in the second direction, so as to facilitate the connection between the first pin shaft 31 and each link 311.
In the above embodiment, the number of the link groups 31 may be increased or decreased to adapt to the shape of the bending region 101 of the flexible screen 100. For example, when the bending test fixture for the flexible screen 100 with the bending area length L1 performs the bending test, the number of the linking groups 31 is M1. When the flexible screen 100 to be tested becomes the flexible screen 100 having the bending area length L2 and L2 is greater than L1, the number of the link groups 31 may be increased to M2. When the flexible screen 100 to be tested becomes the flexible screen 100 having the bending area length L3 and L3 is smaller than L1, the number of link groups 31 can be reduced to M3.
In the embodiment shown in fig. 5, the first pins 32 may be provided for connection to the first connection portions 3111 and the second connection portions 3112 located in the same column, or the first pins 32 may be shared by the first connection portions 3111 and the second connection portions 3112 in the same column, so that the structure is further simplified and the assembly efficiency is improved.
Further, as shown in fig. 7, the first fixing plate 10 is provided with a third connecting portion 11, the chain 311 connected to the first fixing plate 10 is provided with a fourth connecting portion 3113, the third connecting portion 11 and the fourth connecting portion 3113 are arranged along a second direction (up-down direction in the drawing) perpendicular to the first direction, and the bendable structure 30 further includes a second pin 33 penetrating the third connecting portion 11 and the fourth connecting portion 3113.
The third connection portion 11 and the fourth connection portion 3113 are preferably columnar, and shaft holes are provided in the third connection portion 11 and the fourth connection portion 3113, axes of the shaft holes in the third connection portion 11 and the shaft holes in the fourth connection portion 3113 coincide, and the second pin 33 is inserted into the shaft holes in the third connection portion 11 and the fourth connection portion 3113 so that the third connection portion 11 and the fourth connection portion 3113 can both rotate relative to the second pin 33.
Further, as shown in fig. 7, the edge of the first fixing plate 10 near the link group 31 is convexly provided with a plurality of first connecting arms 40, the plurality of first connecting arms 40 are arranged at intervals along the second direction, one end of the first connecting arm 40 is connected with the first fixing plate 10, and the other end is provided with a third connecting part 11. Thus, a certain interval is provided between the link assembly 31 and the first fixing plate 10, so as to avoid the link 311 of the link assembly 31 interfering with the first fixing plate 10 when rotating.
Similarly, as shown in fig. 8, the second fixing plate 20 is provided with a fifth connection part 21, the chain 311 connected to the second fixing plate 20 is provided with a sixth connection part 3114, the fifth connection part 21 and the sixth connection part 3114 are arranged along a second direction perpendicular to the first direction, and the bendable structure 30 further includes a third pin 34 penetrating the fifth connection part 21 and the sixth connection part 3114. The connection structure between the second fixing plate 20 and the link 311 is similar to the connection structure between the first fixing plate 10 and the link 311, and will not be described herein, but reference may be made to various embodiments of the connection structure between the first fixing plate 10 and the link 311.
When the flexible screen 100 is subjected to bending test, the first fixing plate 10 and the second fixing plate 20 are respectively fixed with the non-bending areas 102 on two sides of the flexible screen 100, so that the first fixing plate 10 and the second fixing plate 20 can drive the flexible screen 100 to be folded in half. The specific fixing manner of the flexible screen 100 and the first fixing plate 10 and the second fixing plate 20 is not limited, and in one embodiment, an adhesive layer for adhering to the flexible screen 100 is disposed on the first fixing plate 10 and the second fixing plate 20, and the adhesive layer may be, for example, easy-to-draw adhesive.
In another embodiment, the first fixing plate 10 and the second fixing plate 20 are provided with pressing plates for pressing the flexible screen 100. For example, the pressing plate is an elastic plate, one end of which is fixed to the first fixing plate 10 or the second fixing plate 20, and the other end of which is a free end, and the flexible screen 100 can be pressed between the pressing plate and the first fixing plate 10 or the second fixing plate 20 under the elastic force of the pressing plate.
Of course, it is understood that the fixing structures on the first fixing plate 10 and the second fixing plate 20 may be different, for example, an adhesive layer may be disposed on the first fixing plate 10, a pressing plate may be disposed on the second fixing plate 20, or a pressing plate may be disposed on the first fixing plate 10, and an adhesive layer may be disposed on the second fixing plate 20.
Further, a positioning structure for positioning the flexible screen 100 is provided on the first fixing plate 10 and/or the second fixing plate 20. The positioning structure is arranged to facilitate the positioning of the flexible screen 100 on the first fixing plate 10 and the second fixing plate 20, and ensure that the flexible screen 100 is bent according to a preset bending track, so that the influence of the deflection of the position of the flexible screen 100 in the bending process on the test result is avoided.
The positioning structure may be, for example, a positioning groove matched with the flexible screen 100, and the positioning groove may be disposed on the first fixing plate 10, or may be disposed on the second fixing plate 20, or the positioning grooves are disposed on both the first fixing plate 10 and the second fixing plate 20.
It can be understood that the driving device can directly drive the first fixing plate 10 and the second fixing plate 20 to move relatively, or can be indirectly connected with the first fixing plate 10 and the second fixing plate 20 through other structures so as to drive the first fixing plate 10 and the second fixing plate 20 to move relatively through other structures. For example, in the embodiment shown in fig. 9, the flexible screen bending test apparatus includes a first stage 200 and a second stage 300 disposed at intervals, the first fixing plate 10 is fixed to the first stage 200, and the second fixing plate 20 is fixed to the second stage 300. The driving device is used for driving the first platform 200 and the second platform 300 to be in an unfolding state or a folding state, so that the first platform 200 is used for driving the first fixing plate 10 to move, and the second platform 300 is used for driving the second fixing plate 20 to move, so that the flexible screen 100 is unfolded or folded.
In the above embodiment, since the flexible screen bending test fixture is not directly connected with the driving device, the flexible screen bending test fixture is convenient to disassemble, assemble and replace, so as to perform bending test on flexible screens 100 with different sizes. In addition, by adopting the design, the first fixing plate 10 and the second fixing plate 20 of the flexible screen bending test fixture can be thinner, so that the bendable structure 30, such as the link group 31, is convenient to connect with the first fixing plate 10 and the second fixing plate 20.
The bending test equipment provided by the embodiment of the application is provided with the bendable structure 30, and the hinge in an actual product is simulated by utilizing the bendable structure 30, so that the bending shape and stress condition of the bending area 101 of the flexible screen 100 in the test process are more similar to those of the bending area applied to the actual product, and the accuracy of the test result is improved.
In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense so that "on … …" means not only "directly on something" but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. The bending test fixture for the flexible screen is used for testing the bending property of a bending area of the flexible screen and is characterized by comprising a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are connected through a bendable structure;
The first fixing plate and the second fixing plate are respectively used for being fixedly connected with non-bending areas on two sides of a bending area of the flexible screen, and can be in an unfolding state to unfold the flexible screen and in a folding state to bend the flexible screen along the bending area;
The bendable structure is configured to be attached to a bending region of the flexible screen when the flexible screen is bent;
The bendable structure comprises at least one link group, each link group comprises a plurality of links arranged along a first direction, every two adjacent links are rotationally connected, and the links at two ends are respectively connected with the first fixing plate and the second fixing plate.
2. The jig of claim 1, wherein two adjacent links of the same link set have an overlapping region, and the overlapping region is provided with a first pin penetrating through the two links.
3. The jig for testing bending of a flexible screen according to claim 1, wherein a third connecting portion is provided on the first fixing plate, a fourth connecting portion is provided on the chain connected to the first fixing plate, the third connecting portion and the fourth connecting portion are arranged along a second direction perpendicular to the first direction, and the bendable structure further comprises a second pin shaft penetrating through the third connecting portion and the fourth connecting portion.
4. The jig for testing bending of a flexible screen according to claim 1, wherein a fifth connecting portion is provided on the second fixing plate, a sixth connecting portion is provided on the chain connected to the second fixing plate, the fifth connecting portion and the sixth connecting portion are arranged along a second direction perpendicular to the first direction, and the bendable structure further comprises a third pin shaft penetrating through the fifth connecting portion and the sixth connecting portion.
5. A flexible screen bending test fixture according to any one of claims 1 to 3, wherein the bendable structure comprises a plurality of the link groups, the plurality of link groups being arranged along a second direction perpendicular to the first direction.
6. A flexible screen bending test jig according to any one of claims 1 to 3, wherein an adhesive layer for adhering to the flexible screen is provided on the first fixing plate and/or the second fixing plate; or alternatively
And a pressing plate used for pressing the flexible screen is arranged on the first fixing plate and/or the second fixing plate.
7. A flexible screen bending test jig according to any one of claims 1 to 3, wherein the first and/or second fixing plates are provided with a positioning structure for positioning the flexible screen.
8. The flexible screen bending test fixture of claim 7, the positioning structure comprising a positioning slot that mates with the flexible screen.
9. A flexible screen bending test device, comprising a driving device and the flexible screen bending test jig according to any one of claims 1 to 8, wherein the driving device is used for driving the first fixing plate and the second fixing plate to be in an unfolded state or a folded state.
10. The flexible screen bending test equipment according to claim 9, wherein the flexible screen bending test equipment comprises a first platform and a second platform which are arranged at intervals, the first fixing plate is fixed on the first platform, the second fixing plate is fixed on the second platform, and the driving device is used for driving the first platform and the second platform to be in an unfolded state or a folded state.
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| CN202111318093.9A CN114034577B (en) | 2021-11-09 | 2021-11-09 | Flexible screen bending test fixture and test equipment |
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| CN202111318093.9A CN114034577B (en) | 2021-11-09 | 2021-11-09 | Flexible screen bending test fixture and test equipment |
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| CN114509243A (en) * | 2022-02-23 | 2022-05-17 | 武汉华星光电半导体显示技术有限公司 | Bending test equipment for flexible screen module |
| CN114577450B (en) * | 2022-02-23 | 2024-04-12 | 武汉华星光电半导体显示技术有限公司 | Panel laminating counterpoint tool |
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| CN114034577A (en) | 2022-02-11 |
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