CN110095338B - Test fixture - Google Patents
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- CN110095338B CN110095338B CN201910393733.9A CN201910393733A CN110095338B CN 110095338 B CN110095338 B CN 110095338B CN 201910393733 A CN201910393733 A CN 201910393733A CN 110095338 B CN110095338 B CN 110095338B
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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
- 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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Abstract
The invention relates to a test fixture for testing the reliability of membrane materials with different curvatures, which comprises: a base; the two opposite sides of the flexible plastic plate are respectively and fixedly provided with a plurality of connecting parts; the first fixed supporting structure is provided with two first sliding grooves which are arranged in parallel, and the connecting parts can move in the first sliding grooves so that the flexible shaping plate is changed into a curved surface; the first adjusting structure is arranged between the connecting part and the sliding chute and is used for controlling the flexible plastic plate to rotate a preset angle in a plane vertical to the surface of the flexible plastic plate so as to adjust the curvature of the preset position of the flexible plastic plate; the second adjusting structure is arranged on the base and comprises a supporting portion which is supported on one surface of the flexible plastic plate facing the base, and the supporting portion can move along the direction which is vertical to the surface of the flexible plastic plate so as to adjust the vertical distance from a corresponding point on the curved surface to a chord corresponding to the curved surface when the flexible plastic plate is bent into the curved surface.
Description
Technical Field
The invention relates to the technical field of display product manufacturing, in particular to a test fixture.
Background
Flexible AMOLED (Active-matrix organic light-emitting diode) screens are becoming mainstream displays, and flexible and foldable screens will be used in the future. The flexible OLED screens with different curvature radii will gradually advance to the aspects of life and industry, and the premise of application is that they have high reliability. At present, a flexible bending test fixture is lacked for testing the reliability of flexible films such as touch screens, polaroids, PI (oriented film), flexible cover plates and OLED screens.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a testing fixture, which solves the problem that the fixture for testing the reliability of a display panel cannot be bent flexibly.
In order to achieve the purpose, the invention adopts the technical scheme that: a testing fixture for testing the reliability of film materials with different curvatures comprises:
a base;
the two opposite sides of the flexible plastic plate are respectively and fixedly provided with a plurality of connecting parts;
a first fixed supporting structure arranged on the base and provided with two first sliding chutes which are arranged in parallel, wherein a plurality of connecting parts can move in the first sliding chutes so that the flexible shaping plate is changed into a curved surface;
the first adjusting structure is arranged between the connecting part and the first sliding chute and used for controlling the flexible plastic plate to rotate within a plane vertical to the surface of the flexible plastic plate by a preset angle so as to adjust the curvature of the preset position of the flexible plastic plate;
the structure is adjusted to the second, set up in on the base, including support in flexible plastic plate towards the supporting part of the one side of base, the supporting part can along with flexible plastic plate's surface looks vertically direction go up move, with when the curved surface of flexible plastic plate bending, adjust the curved surface on corresponding point to the vertical distance of the chord that the curved surface corresponds.
Optionally, the first fixed supporting structure includes two first supporting rods arranged in parallel, one of the first supporting rods faces the other one of the supporting rods, and the first sliding groove is arranged along a length direction of the first supporting rod.
Optionally, one surface of the first support rod, which is opposite to the first sliding groove, is provided with a plurality of positioning portions in one-to-one correspondence with the plurality of connecting portions, and the first support rod is provided with scales along the length direction thereof.
Optionally, a second sliding groove arranged in parallel with the first sliding groove is arranged on one surface, opposite to the first sliding groove, of the first supporting rod, and the positioning portion is movably arranged in the second sliding groove.
Optionally, the first fixed supporting structure further includes a second supporting rod vertically disposed on the base, and the second supporting rod is connected to the first supporting rod to support the first supporting rod.
Optionally, the first adjusting structure includes:
the rotating ball body is fixedly connected to the end part of the connecting part and movably arranged in the first sliding groove;
the locking part enables the rotating sphere to have a first state and a second state, the rotating sphere can control the corresponding position of the flexible plastic plate to rotate through the connecting part in the first state, and the rotating sphere is locked in the second state.
Optionally, the locking portion includes locking holes disposed on two opposite side walls of the first sliding groove, and a bolt capable of passing through the locking holes to abut against the rotary sphere to lock the rotary sphere.
Optionally, the first adjusting structure is used for adjusting the curvature of the corresponding position of the flexible plastic plate, and the rotating ball is locked in the first sliding groove.
Optionally, the second adjusting structure includes a second fixed supporting structure disposed on the base, a third sliding groove disposed in parallel with the first sliding groove is disposed on the second fixed supporting structure, and the supporting portion is movably disposed on the third sliding groove.
Optionally, the second adjusting structure includes a telescopic rod, and the supporting portion is located at one end of the telescopic rod.
Optionally, one side of the flexible shaping plate facing the base is provided with a joint connection structure for connecting with the support part.
The invention has the beneficial effects that: the curvature radius of the flexible plastic plate can be automatically adjusted according to needs, so that the structure and property changes of the thin film material under different curvatures can be conveniently tested, and the testing cost is saved.
Drawings
FIG. 1 is a first schematic view of a test fixture according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second exemplary embodiment of a test fixture;
FIG. 3 is a schematic view of a first support bar according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the positioning portion according to the embodiment of the present invention;
FIG. 5 is a schematic view of a connection structure of the flexible plastic plate, the connection part and the rotary sphere according to the embodiment of the present invention;
FIG. 6 is a schematic view of a flexible shaping plate bent into an S-shape according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the principle of arc length and angle adjustment in an embodiment of the present invention;
fig. 8 is a schematic view showing the principle of sag adjustment in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In order to realize that the curvature of the attaching jig is adjustable, the attaching jig with the adjustable curvature is designed in the prior art, the upper and lower push-pull mechanisms are adopted to realize that the curvature is adjustable, and the function that the same jig is applied to multiple curvature attaching requirements is realized. However, the difficulty of forming the whole curved surface into the required arc is high only through the push-pull mechanism, uneven stress on the shaping plate is easily caused, and the obtained curved surface may not be a perfect arc.
As shown in fig. 1-6, in order to solve the above problem, the present embodiment provides a testing fixture for testing reliability of films with different curvatures, including:
the base 4 is provided with a bearing surface;
the flexible plastic plate 1 is arranged on the bearing surface, and a plurality of connecting parts are respectively fixedly arranged on two opposite sides;
the first fixed supporting structure is arranged on the bearing surface and is provided with two first sliding grooves which are arranged in parallel, and the connecting parts can move in the first sliding grooves so that the flexible plastic plate 1 is deformed into a curved surface;
the first adjusting structure is arranged between the connecting part and the first sliding chute and is used for controlling the flexible plastic plate 1 to rotate within a plane vertical to the surface of the flexible plastic plate 1 by a preset angle so as to adjust the curvature of the preset position of the flexible plastic plate 1;
the structure is adjusted to the second, set up in on the base 4, including support in flexible plastic plate 1 towards the supporting part 7 of the one side of base 4, supporting part 7 can along with flexible plastic plate 1's surface looks vertically direction go up move, with when flexible plastic plate 1 bends into the curved surface, adjust the curved surface on corresponding point to the vertical distance of the chord that the curved surface corresponds.
The testing jig in the embodiment can adjust the curvature of the preset position of the flexible plastic plate 1 through the first adjusting structure, and can adjust the vertical distance from the corresponding point on the curved surface to the chord corresponding to the curved surface through the setting of the second adjusting structure, so that the reliability of various film materials or multi-layer film material combined structures under different curvatures (including S-shaped and arched) can be accurately tested, the curvature radius can be automatically adjusted according to the needs, the structural and property changes of the film materials under different curvatures can be conveniently tested, and the testing cost is saved.
The specific structure form of the first fixed supporting structure can be various, in this embodiment, the first fixed supporting structure includes two first supporting rods 2 arranged in parallel, one side of one first supporting rod 2 facing the other supporting rod is provided with the first sliding groove, and the first sliding groove is arranged along the length direction of the first supporting rod 2.
Two first bracing piece 2 is located respectively the relative both sides of flexible plastic plate 1, connecting portion are in slide in the first spout, right flexible plastic plate 1 exerts force, makes flexible plastic plate 1 deformation becomes the curved surface structure.
The number of the connecting parts can be set according to actual needs, and generally, the positions of the connecting parts correspond to the wave crests and/or wave troughs of the curved surface formed by the flexible plastic plate 1, but not limited thereto.
Flexible plastic plate 1 is including relative first side and the second side that sets up, sets up a plurality ofly on first side and the second side respectively connecting portion, just on the first side connecting portion with connecting portion one-to-one and symmetry setting on the second side, promptly on the first side the quantity of connecting portion with on the second side the quantity of connecting portion is the same, on the first side the position of connecting portion with on the second side the line of the position of connecting portion with the length direction of first spout is mutually perpendicular, avoids because on the first side the position of connecting portion with the position of connecting portion on the second side is different, causes first side with the stress position on the second side is different, the curved surface distortion after flexible plastic plate 1 deformation is inconsistent with the rete of the examination of awaiting measuring.
Under general conditions, the position of connecting portion corresponds to crest or trough department behind flexible plastic plate 1 formation curved surface, the position that sets up of connecting portion is different, then finally shape, the camber of flexible plastic plate 1 can be different, in this embodiment, connecting portion with be detachable connection between the flexible plastic plate 1, be convenient for make flexible plastic plate 1 forms the curved surface of different shapes (including at least one arch, S-shaped etc.) to the test of adaptation different membrane materials.
In this embodiment, one surface of the first support rod 2, which is opposite to the first sliding groove, is provided with a plurality of positioning portions 9 corresponding to the plurality of connecting portions one to one, and the first support rod 2 is provided with scales along the length direction thereof.
The positioning portions 9 are fixed, the positioning portions 9 correspond to the connecting portions one to one, that is, the positions of the positioning portions 9 are equivalent to the original positions of the corresponding connecting portions, after the connecting portions move to deform the flexible plastic plate 1, the corresponding moving distances of the connecting portions can be obtained through the relative distances between the corresponding positioning portions 9, and the distances between the adjacent connecting portions can also be directly obtained through the scales on the first supporting rods 2, so that the chord lengths corresponding to the arc lengths of the arc-shaped cross sections after the flexible plastic plate 1 forms the curved surface can be accurately obtained.
In this embodiment, a second sliding groove parallel to the first sliding groove is disposed on a surface of the first supporting rod 2 opposite to the first sliding groove, and the positioning portion 9 is movably disposed in the second sliding groove.
The positioning portion 9 is movably arranged in the second sliding groove, so that the position of the positioning portion 9 and the corresponding connecting portion (the position of the connecting portion before the flexible plastic plate 1 is not deformed) are conveniently adjusted to be located at the same scale.
The structure of the first support rod 2, the connecting portion and the positioning portion 9 can refer to fig. 3 to 5.
In order to enhance the supporting strength of the first supporting rod 2, in this embodiment, the first fixed supporting structure further includes a second supporting rod 5 vertically disposed on the base 4, and the second supporting rod 5 is connected with the first supporting rod 2 to support the first supporting rod 2.
The specific structural form of the first adjusting structure may be various, and in this embodiment, the first adjusting structure includes:
the rotating ball body 3 is fixedly connected to the end part of the connecting part, and the rotating ball body 3 is movably arranged in the first sliding chute;
a locking portion (not shown) for allowing the rotary sphere 3 to have a first state in which the rotary sphere 3 can control the corresponding position of the flexible plastic plate 1 to rotate through the connecting portion and a second state in which the rotary sphere 3 is locked.
Fig. 2 shows that the flexible plastic plate 1 is bent into a single arch shape which is bent inward, the arc length of the single arch shape is set, the positions of the connection portions are adjusted so that the distance between two adjacent connection portions is the same as the arc length, and the rotary sphere 3 is rotated to give an initial downward force to the flexible plastic plate 1; along first spout removes connecting portion make the 1 crooked deformation of flexible plastic plate forms bellied initial curved surface downwards, removes and is located 1 one end of flexible plastic plate connecting portion to preset position, through rotatory spheroid 3 is adjusted the contained angle (contained angle theta in figure 7) at 1 both ends of flexible plastic plate are to predetermineeing the angle, rectify the cambered surface.
Fig. 7 illustrates that the flexible plastic plate 1 is bent into an outward single arch shape, the arc length of the single arch shape is s, and the chord length corresponding to the arc length is m,; the parameters to be corrected are the included angle theta between the tangent and the horizontal plane and the radius r of the circular arc.
From the geometric relationship:
obtaining:
in general, the selected material of the flexible plastic plate 1 has a high elastic modulus, and the arc length S is controlled to be
And the chord length m can control the curvature radius of the required cambered surface to be r.
The connecting parts on the two sides of the flexible plastic plate 1 can drive the flexible plastic plate 1 to freely move on the first supporting rods 2 so as to adjust the range of the deformation area of the flexible plastic plate 1, thereby controlling the arc length and the chord length of the cambered surface formed by the deformation of the flexible plastic plate 1. In order to ensure the perfection of the cambered surface, the rotary spheres 3 positioned at the two ends of the flexible plastic plate 1 are adjusted to control the included angle theta between the tangent lines at the two ends of the cambered surface and the chordThe size of (2). The included angle theta between the tangent lines at the two ends of the cambered surface and the horizontal line is
And correcting the cambered surface to ensure that the cambered surface is an arc with the curvature radius r.
Fig. 6 is a schematic view of the flexible plastic plate 1 being bent into an S-shape, which can be seen as a concatenation of an inward curved arc and an outward curved arc. The curvature adjustment of the S-shape adopts a mode of adjusting the curvature of each circular arc one by one, and the adjustment of the curvature of each circular arc can obtain a required included angle theta between a tangent line and a horizontal plane and a circular arc radius r according to the single-arch adjustment principle shown in the above fig. 7, which is not described herein again. It should be noted that, by adjusting the rotating sphere 3 at the joint of the inward curved arc and the outward curved arc, the tangents of the inward curved arc and the outward curved arc at the joint must coincide, so as to prevent the bending phenomenon.
In this embodiment, the rotary sphere 3 and the corresponding connecting portion rotate synchronously, in order to facilitate the control of the adjustment of the angle of the corresponding position of the flexible plastic plate 1, an angle mark is provided on the outer surface of the rotary sphere 3 or the connecting portion, and the deflection angles at the two ends of the arc surface can be controlled by rotating the rotary sphere 3.
The specific structural form of the locking portion may be various, and in this embodiment, the locking portion includes locking holes disposed on two opposite side walls of the first sliding groove, and a bolt capable of passing through the locking holes to abut against the rotary sphere 3 to lock the rotary sphere 3.
When the rotary sphere 3 needs to be rotated, the bolt is loosened, when the position of the rotary sphere 3 needs to be fixed after the adjustment is finished, the bolt is tightened, and the rotary sphere 3 is locked by abutting against the rotary sphere 3 through the bolt to prevent the rotary sphere 3 from rotating.
In this embodiment, the testing fixture further includes a clamping portion 10, configured to provide clamping force to two opposite sidewalls of the first sliding groove, so as to lock the rotating sphere 3 in the first sliding groove after the first adjusting structure adjusts the curvature of the corresponding position of the flexible plastic plate 1.
In order to strengthen the design through the curved surface that forms after the first regulation structure is adjusted, this embodiment has set up clamping part 10, through right first spout is exerted force, with effectual fastening rotatory spheroid 3, the effectual prevention rotatory spheroid 3 is rotatory and the influence by the curvature of the curved surface that flexible plastic plate 1 deformation formed.
In an embodiment of this embodiment, the clamping portion 10 is after the second adjusting structure is right the flexible plastic plate 1 is adjusted, it is right the flexible plastic plate 1 is strengthened and finalized, whether the use of the clamping portion 10 is after the first adjusting structure adjusting step or after the second adjusting structure adjusting step can be set according to specific needs.
The concrete structural style of clamping part 10 can have the multiple, as long as flexible plastic plate 1 deformation play when becoming predetermined curved surface reinforce the effect of stereotyping can, in the embodiment of this embodiment, clamping part 10 can be a simple structure's clip, can also be one can overlap and establish the outside sleeve of first bracing piece 2.
On one hand, the material of the test fixture may be aged to a certain degree, and the elastic modulus is reduced, so that the cambered surface of the test fixture is deformed; on the other hand, after the testing jig is attached to the film or the flexible screen to be tested, the arc surface may have slight deformation, so that the arc is locally deformed, and the curvature radius is changed. In order to cope with such a possible drawback, the second adjusting structure is used in this embodiment to adjust the corresponding sag.
As shown in fig. 8. Taking any point on the chord AB, controlling the vertical distance from the point to the cambered surface, and if the point AB is the midpoint C, then the vertical distance
The procedure for adjusting the corresponding sag for correction is as follows.
And randomly taking a point E on the chord AB, setting EB (equal to n), setting a point corresponding to the point E on the cambered surface in the vertical direction as F, and adjusting the ideal vertical distance h from the point F to the chord.
As can be seen from the basic geometrical relationships,
|OT|-|CE|＝m/2-n，
|OT|2＝|OF|2+|TF|2，
namely, it is
The sag h from point F to the chord is thus:
and controlling the distance (horizontal distance n value) between the supporting part 7 and the corresponding end part of the flexible plastic plate 1 and the distance h from the point of the cambered surface corresponding to the position of the supporting part 7 to the chord, so that the curved surface formed by the deformation of the flexible plastic plate 1 is positioned at the theoretical position. This process is only required by sliding the position of the support portion 7 on the first support bar 2 and by adjusting the position of the support portion 7 in the vertical direction (the direction of the vertical distance of the chord from the point on the arc in fig. 8).
The specific structural form of the second adjusting structure may be various, in this embodiment, the second adjusting structure includes a second fixed supporting structure disposed on the base 4, a third sliding slot disposed in parallel with the first sliding slot is disposed on the second fixed supporting structure, and the supporting portion 7 is movably disposed on the third sliding slot.
The supporting part 7 can move in the third sliding groove, so that the supporting part 7 can move according to the required preset position, and the vertical distance from the corresponding point on the curved surface to the chord corresponding to the curved surface after the curved surface is formed by the flexible plastic plate 1 can be flexibly adjusted.
It should be noted that the number of the supporting portions 7 may be determined according to actual conditions.
The third sliding groove may be directly provided on the base 4, or may be provided on a support rod (third support rod 6) fixed to the base 4.
In an embodiment of this embodiment, the second adjusting structure includes a telescopic rod, and the supporting portion 7 is located at one end of the telescopic rod.
The specific structural style of telescopic link has the multiple, and the accessible is manual or automatic the position of supporting part 7 is adjusted to the mode, for example, the telescopic link is established interior pole and outer pole including the cover together, supporting part 7 is located interior pole expose in the tip of the one end of outer pole, be provided with a plurality of archs along its length direction on the outer wall of interior pole, be provided with a plurality of confessions on the lateral wall of outer pole a plurality of through-holes that the arch passed, it is a plurality of the through-hole with a plurality of protruding one-to-one, adjust through the protruding on the interior pole with the corresponding position relation of through-hole on the outer pole the interior pole the pole expose in the length of the part of outer pole, thereby adjust the position of supporting part 7.
In this embodiment, the side of the flexible plastic plate 1 facing the base 4 is provided with an articulation structure 8 for connecting with the support portion 7.
The joint connection structure is arranged to facilitate the connection of the supporting part 7 and the flexible plastic plate 1, and the joint connection structure is also arranged to facilitate the flexible adjustment of the force application direction of the supporting part 7.
In an embodiment of this embodiment, the joint connection structure includes two connecting rods connected through a rotating shaft, one connecting rod is connected to the flexible plastic plate, and the other connecting rod is used for connecting with the supporting portion.
In this embodiment, the testing jig is made of metal, plastic or other materials with better elastic modulus, and the flexible plastic plate 1 can meet the testing requirements of the film or the flexible screen on different curvature radii. The test fixture can be attached to a sample to be tested in a diversified manner, and the film material and the flexible plastic plate 1 can be attached in a traditional manner, namely, the film material and the flexible plastic plate are extruded and attached by rollers; meanwhile, the flexible plastic plate 1 has the characteristic of being bendable, so that a test fixture can be adopted to be firstly attached to a film material to be tested or a flexible screen plane, and then the flexible plastic plate 1 is bent to a specified shape.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A test fixture for testing the reliability of film materials with different curvatures is characterized by comprising:
a base;
the two opposite sides of the flexible plastic plate are respectively and fixedly provided with a plurality of connecting parts;
a first fixed supporting structure arranged on the base and provided with two first sliding chutes which are arranged in parallel, wherein a plurality of connecting parts can move in the first sliding chutes so that the flexible shaping plate is changed into a curved surface;
the first adjusting structure is arranged between the connecting part and the first sliding chute and used for controlling the flexible plastic plate to rotate within a plane vertical to the surface of the flexible plastic plate by a preset angle so as to adjust the curvature of the preset position of the flexible plastic plate;
the second adjusting structure is arranged on the base and comprises a supporting part supported on one surface of the flexible plastic plate facing the base, and the supporting part can move along the direction vertical to the surface of the flexible plastic plate so as to adjust the vertical distance from a corresponding point on the curved surface to a chord corresponding to the curved surface when the flexible plastic plate is bent into the curved surface;
the first adjustment structure includes:
the rotating ball body is fixedly connected to the end part of the connecting part and movably arranged in the first sliding groove;
the locking part enables the rotating sphere to have a first state and a second state, the rotating sphere can control the corresponding position of the flexible plastic plate to rotate through the connecting part in the first state, and the rotating sphere is locked in the second state.
2. The testing fixture of claim 1, wherein the first fixed supporting structure comprises two first supporting rods arranged in parallel, one side of one of the first supporting rods facing the other supporting rod is provided with the first sliding groove, and the first sliding groove is arranged along the length direction of the first supporting rod.
3. The testing fixture according to claim 2, wherein a plurality of positioning portions corresponding to the plurality of connecting portions are disposed on a surface of the first supporting rod opposite to the first sliding groove, and the first supporting rod is provided with scales along a length direction thereof.
4. The testing fixture according to claim 3, wherein a second sliding groove is disposed on a surface of the first supporting rod opposite to the first sliding groove, the second sliding groove being parallel to the first sliding groove, and the positioning portion is movably disposed in the second sliding groove.
5. The testing fixture of claim 2, wherein the first fixed supporting structure further comprises a second supporting rod vertically disposed on the base, and the second supporting rod is connected to the first supporting rod to support the first supporting rod.
6. The testing fixture according to claim 1, wherein the locking portion includes locking holes disposed on two opposite side walls of the first sliding groove, and a bolt capable of passing through the locking holes to abut against the rotary sphere to lock the rotary sphere.
7. The test fixture of claim 1, further comprising a clamping portion for providing a clamping force to two opposing sidewalls of the first sliding groove to lock the rotary sphere in the first sliding groove after the first adjustment structure adjusts the curvature of the corresponding position of the flexible plastic plate.
8. The testing fixture of claim 1, wherein the second adjusting structure includes a second fixed supporting structure disposed on the base, a third sliding slot disposed on the second fixed supporting structure in parallel with the first sliding slot, and the supporting portion is movably disposed on the third sliding slot.
9. The testing fixture of claim 1, wherein the second adjusting structure comprises a retractable rod, and the supporting portion is located at one end of the retractable rod.
10. The test fixture of claim 1, wherein a joint connection structure for connecting with the support portion is disposed on a side of the flexible plastic plate facing the base.
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| CN112394551B (en) * | 2020-11-12 | 2023-10-31 | 惠州市华星光电技术有限公司 | Pressure maintaining jig |
| CN112903432B (en) * | 2021-01-18 | 2022-07-26 | 吉林大学 | Dentistry diaphragm elastic recovery testing arrangement |
| CN112903253B (en) * | 2021-01-21 | 2024-01-30 | 昆山国显光电有限公司 | Testing jig and testing method for flexible display panel |
| CN113009324B (en) * | 2021-05-24 | 2021-08-03 | 中国电子科技集团公司第二十九研究所 | Curved surface multi-probe test fixture |
| CN113552738B (en) * | 2021-07-06 | 2022-06-10 | 惠州华星光电显示有限公司 | Curved surface screen verification jig |
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| CN204189829U (en) * | 2014-11-19 | 2015-03-04 | 昆山国显光电有限公司 | Flexible screen bending joint tool |
| KR20160144694A (en) * | 2015-06-09 | 2016-12-19 | 한밭대학교 산학협력단 | Bending Test Apparatus for Flexible Display Device |
| WO2016208857A1 (en) * | 2015-06-23 | 2016-12-29 | Samsung Electronics Co., Ltd. | Foldable electronic apparatus having display panel with variable curvature |
| CN105225614A (en) * | 2015-10-26 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of camber display screen curvature regulating device and using method, curved-surface display device |
| CN205121102U (en) * | 2015-10-26 | 2016-03-30 | 合肥惠科金扬科技有限公司 | Camber adjustable display |
| CN205991869U (en) * | 2016-09-05 | 2017-03-01 | 京东方科技集团股份有限公司 | Panel test jig |
| CN108692923A (en) * | 2018-05-14 | 2018-10-23 | 武汉华星光电半导体显示技术有限公司 | A kind of dynamic bending jig for testing the flexible bending degree of flexible display panels |
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