CN109490117B - Flexible screen test fixture - Google Patents
Flexible screen test fixture Download PDFInfo
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- CN109490117B CN109490117B CN201811543359.8A CN201811543359A CN109490117B CN 109490117 B CN109490117 B CN 109490117B CN 201811543359 A CN201811543359 A CN 201811543359A CN 109490117 B CN109490117 B CN 109490117B
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- flexible screen
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- arm
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating 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
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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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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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
Abstract
The invention provides a flexible screen test fixture which comprises a fixture main body and a transfer arm. The jig main body comprises a first mounting part and a second mounting part which are rotatably connected, and the first mounting part and the second mounting part are respectively used for fixing the non-bending area of the flexible screen; two ends of the transfer arm are respectively rotatably connected with the first mounting part and the second mounting part; the jig main body is driven by the driving shaft so that the first mounting part and the second mounting part are close to or far away from each other; when the first installation part and the second installation part are close to each other, the first installation part, the second installation part and the switching arm jointly form an avoiding part to accommodate a bending area of the flexible screen. The switching arm both ends rotate with first installation department and second installation department respectively and are connected to make flexible screen bending region both sides non-bending region rotation axis not collinear, when guaranteeing the crooked radian of bending region, can also reduce the stress of flexible screen curvature, prevent the extra damage of flexible screen, guarantee the accuracy of flexible screen life-span test of buckling.
Description
Technical Field
The invention relates to the technical field of flexible screen testing, in particular to a flexible screen testing jig.
Background
The flexible screen is a flexible display screen and is mainly made of flexible materials. Flexible screens are widely used in portable devices due to their advantages of being light weight, not fragile, and deformable. Because the flexible screen bending performance directly affects the quality of the flexible display, the bending times, i.e. the bending life, of the flexible screen need to be tested in the research and development and production processes.
At present, the common flexible screen testing device is used for testing the bending service life of the flexible screen, so that the two sides of the flexible screen are turned over to achieve the bending state of the flexible screen, but the bending part of the flexible screen is easy to bear larger stress, the flexible screen is additionally damaged, and the accuracy of bending test is influenced.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, a bending test device of a flexible screen is easy to cause large stress on a bent part of the flexible screen, and the additional damage of the flexible screen is easy to cause, so that the bending test accuracy of the flexible screen is poor.
In order to solve the technical problems, the invention provides a flexible screen test fixture which comprises a fixture main body and a transfer arm, wherein the fixture main body comprises a first mounting part and a second mounting part which are rotatably connected, the first mounting part and the second mounting part are respectively used for fixing non-bending areas on two sides of a bending area of a flexible screen, and an avoiding part for avoiding the bending area is arranged between the first mounting part and the second mounting part; the two ends of the transfer arm are respectively rotatably connected with the first mounting part and the second mounting part, and the jig main body is driven by a driving shaft to enable the first mounting part and the second mounting part to relatively rotate, so that the first mounting part and the second mounting part are close to or far away from each other; first installation department with when the second installation department is close to each other, first installation department with the second installation department and the switching arm forms jointly dodges the portion, with the holding the bending zone of flexible screen.
According to the technical scheme, the beneficial effects of the invention are as follows:
in the flexible screen test fixture, the first mounting part and the second mounting part of the fixture main body are respectively used for fixing the non-bending areas on two sides of the flexible screen, and the first mounting part and the second mounting part are rotatably connected through the transfer arm. When first installation department and second installation department were close to each other, the bending zone of flexible screen can the holding in the dodge portion that first installation department and second installation department and switching arm formed jointly to only buckle in the bending zone when making flexible screen buckle, thereby avoid the buckling in non-bending zone. In addition, the both ends of switching arm respectively with first installation department and second installation department rotatable coupling to make the non-bending region axis of rotation of bending zone both sides not collinear, when guaranteeing the crooked radian of bending zone, can reduce the stress of flexible screen bend, prevent the extra damage of flexible screen, guarantee the accuracy of flexible screen life-span test of buckling.
Drawings
FIG. 1 is a schematic structural diagram of a flexible screen test fixture according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a fixture main body in the flexible screen test fixture shown in fig. 1;
FIG. 3 is a schematic structural view of the jig main body shown in FIG. 2 in a use state;
fig. 4 is a schematic structural diagram of the swing arm and the base of the flexible screen test fixture shown in fig. 1.
The reference numerals are explained below: 100. a flexible screen test fixture; 10. a jig main body; 11. a first mounting portion; 111. a first support frame; 1111. a first side arm; 1112. a first connecting arm; 1114. a first connecting lug; 112. a first mounting plate; 113. a fastening part; 12. a second mounting portion; 121. a second support frame; 1211. a second side arm; 1212. a second connecting arm; 1214. a second engaging lug; 122. a second mounting plate; 123. mounting holes; 13. an avoidance part; 14. an operation section; 15. a transfer arm; 151. a first transfer member; 152. a second adaptor; 153. a transfer pin; 154. a first connecting pin; 155. a second connecting pin; 16. a first limiting part; 161. a first limiting surface; 17. a second limiting part; 171. a second limiting surface; 18. an accommodating groove; 191. positioning a groove; 192. a positioning part; 20. swinging arms; 21. a first swing link; 211. a rotating shaft; 22. a second swing link; 23. a connecting rod; 24. a via hole; 30. a drive shaft; 40. a base; 41. a fixing plate; 42. a base plate; 43. an installation table; 431. a fastening hole; 44. a containing groove; 45. and a butt joint block.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.
The embodiment of the application provides a flexible screen test fixture, mainly used for testing the number of times that flexible screen is able to bear or endure to buckle to confirm the fatigue life of flexible screen.
The flexible screen can be divided into an inward-folding screen and an outward-folding screen according to different bending directions. After the inward-folded screen is bent, the display surface of the flexible screen is arranged on the inner side; after the outer folding screen is bent, the display surface of the flexible screen is arranged on the outer side. When the flexible screen is subjected to bending life test, the area of the flexible screen, which forms the arc-shaped structure, is a bending area, and the areas on two sides of the bending area on the flexible screen are non-bending areas. The sideline that bending zone and non-bending zone border on is the transition sideline, and the axis that flexible screen was around when buckling is the axis of buckling, and the transition sideline is parallel with the axis of buckling.
Referring to fig. 1, the flexible screen test fixture 100 of the present embodiment includes a fixture body 10 and an adapter arm 15. Specifically, the jig main body 10 includes a first mounting portion 11 and a second mounting portion 12, the second mounting portion 12 is rotatably connected to the first mounting portion 11, and the first mounting portion 11 and the second mounting portion 12 are respectively used for fixing the non-bending regions on two sides of the bending region of the flexible screen. The two ends of the transfer arm 15 are rotatably connected to the first mounting portion 11 and the second mounting portion 12, respectively, and the jig main body 10 is driven by the driving shaft 30 to relatively rotate the first mounting portion 11 and the second mounting portion 12, so that the first mounting portion 11 and the second mounting portion 12 are close to or away from each other. When the first mounting portion 11 and the second mounting portion 12 are close to each other, the first mounting portion 11, the second mounting portion 12 and the transfer arm 15 together form an escape portion 13 to accommodate a bending region of the flexible screen.
When the flexible screen test fixture 100 is used for detecting the fatigue life of the flexible screen, the two non-bending areas of the flexible screen are fixed on the first installation part 11 and the second installation part 12 respectively, the bending areas correspond to the avoidance parts 13, the driving shaft 30 drives the fixture main body 10 to act, the first installation part 11 is close to or away from the second installation part 12, the bending areas are bent, the two non-bending areas are close to or away from each other, and the bending times of the flexible screen can be determined.
Further, in the present embodiment, the first mounting portion 11 includes a first support frame 111 and a first mounting plate 112, and the first mounting plate 112 is disposed inside the first support frame 111. The first supporting frame 111 is U-shaped, and includes a pair of parallel and oppositely disposed first side arms 1111 and a first connecting arm 1112 connecting ends of the two first side arms 1111. The first mounting plate 112 is disposed in a space enclosed by the first side arm 1111 and the first connection arm 1112, and a surface of the first mounting plate 112 is used to fix one of the non-bending regions of the flexible screen.
The second mounting portion 12 includes a second support frame 121 and a second mounting plate 122, and the second mounting plate 122 is disposed inside the second support frame 121. The second supporting frame 121 is U-shaped, and includes a pair of parallel and opposite second side arms 1211 and a second connecting arm 1212 connecting ends of the two second side arms 1211. The second mounting plate 122 is disposed in a space enclosed by the second side arm 1211 and the second connecting arm 1212, and a surface of the second mounting plate 122 is used to fix another non-bending region of the flexible screen.
In this embodiment, a space is provided between the first mounting plate 112 and the second mounting plate 122, and the space is an avoiding portion 13 to avoid a bending area of the flexible screen, so as to prevent the flexible screen from causing excessive damage in a bending process, and ensure the accuracy of the test. In addition, the avoiding portion 13 may also be an avoiding groove disposed between the first mounting plate 112 and the second mounting plate 122, and the avoiding groove corresponds to a bending region of the flexible screen and is used for accommodating the bending region of the flexible screen in a bending state.
The flexible screen is attached to the first mounting plate 112 and the second mounting plate 122 by adhesive prior to bending life testing. In the second mounting portion 12 of the present embodiment, a notch is provided between the second mounting plate 122 and the side opposite to the second connecting arm 1212, and the notch constitutes the operating portion 14. The tester can easily take and place the flexible screen in the jig main body 10 through the operation part 14. In other embodiments, the handle portion 14 may be a groove with a groove bottom lower than the second mounting plate 122. Further, the operating portion 14 may also be provided in the first mounting portion 11.
Further, referring to fig. 2, the first mounting portion 11 and the second mounting portion 12 are respectively provided with receiving grooves 18 for receiving the flexible panels. The receiving groove 18 of the first mounting portion 11 is formed between the inner wall of the first support frame 111 and the first mounting plate 112, and the receiving groove 18 of the second mounting portion 12 is formed between the inner wall of the second support frame 121 and the second mounting plate 122.
In this embodiment, the depth of the receiving groove 18 is greater than the thickness of the flexible screen. When the flexible screen is attached to the first mounting plate 112 and the second mounting plate 122 and received in the receiving groove 18, the display surface of the flexible screen is lower than the surfaces of the first support frame 111 and the second support frame 121. The flexible screen testing device can avoid the display surface of the flexible screen from touching in the flexible screen testing process, reduce the extra damage of the flexible screen and ensure the accuracy of test data.
As shown in fig. 2 and 3, the open end of the first support frame 111 is opposite to the open end of the second support frame 121, and the end of the first side arm 1111 away from the first connection arm 1112 is rotatably connected to the end of the second side arm 1211 away from the second connection arm 1212.
In the present embodiment, the transfer arms 15 are provided in two sets, the ends of the first side arm 1111 and the second side arm 1211 are rotatably connected by one set of transfer arms 15, and the two sets of transfer arms 15 are respectively disposed at two sides of the space between the first mounting plate 112 and the second mounting plate 122.
Specifically, one end of the adapter arm 15 is rotatably connected to the end of the first side arm 1111, and the other end of the adapter arm 15 is rotatably connected to the end of the second side arm 1211, so that the first mounting portion 11 can rotate relative to the second mounting portion 12. Through setting up switching arm 15, can make the upset between first installation department 11 and the second installation department 12 more smooth and easy, can make the flexible screen be bending of gradual change formula simultaneously, avoid the radian of bending in flexible screen bending zone to produce the sudden change.
In the present embodiment, the adaptor arm 15 includes a first adaptor 151 and a second adaptor 152 rotatably connected. The first adaptor 151 is H-shaped, two ends of the first adaptor 151 form U-shaped adaptor slots, and ends of the second adaptor 152 are disposed in the adaptor slots and rotatably connected by the adaptor pins 153.
In this embodiment, the end of the first side arm 1111 is rotatably connected to the second adaptor 152, and the end of the second side arm 1211 is rotatably connected to the first adaptor 151. The end of the first side arm 1111 protrudes outward to form a pair of first coupling lugs 1114, a coupling groove is formed between the two first coupling lugs 1114, and the end of the second adaptor 152 is disposed in the coupling groove and rotatably coupled by the first coupling pin 154. The end of the second side arm 1211 is convexly provided with a second coupling lug 1214, and the second coupling lug 1214 is disposed in the other adapting groove of the first adapting member 151 and is rotatably coupled by the second coupling pin 155.
In the present embodiment, when the flexible screen is fixed on the jig main body 10, the bending axis of the flexible screen is collinear with the axis of the adapting pin 153, and the axis of the first connecting pin 154 and the axis of the second connecting pin 155 are respectively collinear with the two transition lines of the flexible screen. The flexible screen can be closer to the use state during testing by the arrangement, so that the bending of the non-bending area and the excessive bending of the bending area are prevented, the problem of overlarge stress at the bending part of the flexible screen is avoided, and the accuracy of test data is ensured. Meanwhile, the joint of the first installation part 11 and the second installation part 12 is located on the outer side of the avoidance part 13, so that the influence of the switching arm 15 on the flexible screen when the flexible screen is bent can be avoided, and the flexible screen is prevented from being damaged additionally.
It is understood that in the above embodiment, the first adaptor 151 may also be rotatably connected to the first side arm 1111, the second adaptor 152 may be rotatably connected to the second side arm 1211, and the connection manner between the components is the same as that in the above embodiment, and will not be described again. Meanwhile, the first side arm 1111 and the second side arm 1211 can be rotatably connected by other means, such as hinge connection or connection through a rotating shaft. In addition, the adaptor of this embodiment can also be three, four etc. as long as can guarantee that the bending zone of flexible screen takes place to bend in the scope of buckling, its radian of bending can not produce the sudden change can.
Further, a first position-limiting portion 16 is disposed at an end of the first side arm 1111 away from the first connecting arm 1112, a second position-limiting portion 17 is disposed at an end of the second side arm 1211 away from the second connecting arm 1212, and the second position-limiting portion 17 is adapted to the first position-limiting portion 16. When the first mounting portion 11 is rotated away from the second mounting portion 12 until the first limiting portion 16 abuts against the second limiting portion 17, the first mounting portion 11 stops rotating, and the first mounting plate 112 and the second mounting plate 122 are located on the same plane.
Specifically, the first stopper portion 16 and the second stopper portion 17 are each L-shaped. One end of the first position-limiting portion 16 is fixed on the surface of the first side arm 1111, and the other end of the first position-limiting portion 16 extends outward beyond the end of the first side arm 1111, and the outer end surface of the first position-limiting portion 16 is a first position-limiting surface 161. The second position-limiting portion 17 is disposed corresponding to the first position-limiting portion 16, one end of the second position-limiting portion 17 is fixed on the surface of the second side arm 1211, the other end of the second position-limiting portion 17 extends beyond the end of the second side arm 1211, and the outer end surface of the second position-limiting portion 17 is the second position-limiting surface 171. In this embodiment, the first stopper surface 161 and the second stopper surface 171 are both inclined surfaces.
When the first installation part 11 is far away from the second installation part 12 and rotates, and when the first limiting surface 161 is attached to the second limiting surface 171, the first installation part 11 stops rotating, and at the moment, the first limiting part 16 and the second limiting part 17 are in cooperation effect, so that the flexible screen is prevented from rotating outside the bending range of the flexible screen, excessive bending of the flexible screen is avoided, and unnecessary damage to the flexible screen is reduced.
When the first limiting part 16 abuts against the second limiting part 17, the surfaces of the first mounting plate 112 and the second mounting plate 122, which are used for fixing the non-bending area of the flexible screen, are located on the same plane, so that on one hand, the flexible screen is convenient to attach to the first mounting plate 112 and the second mounting plate 122, and on the other hand, the integrity of the flexible screen in a non-bending state can be ensured.
It should be noted that the first limiting portion 16 and the second limiting portion 17 of the present embodiment are not limited to L-shaped structures, as long as when the first limiting portion 16 and the second limiting portion 17 cooperate with each other, the first mounting portion 11 can be ensured to rotate within the bending range of the flexible screen relative to the second mounting portion 12, and the flexible screen is prevented from being bent reversely.
In addition, in the first and second support frames 111 and 121 of the present embodiment, the positioning groove 191 is provided on the surface of the first connecting arm 1112, and the positioning portion 192 is provided on the surface of the second connecting arm 1212 in an outward protruding manner. When the first installation part 11 rotates towards the second installation part 12 and the positioning part 192 is clamped in the positioning groove 191, the first installation part 11 stops rotating, so that the flexible screen is ensured to be completely bent, and unnecessary damage of a bending area caused by excessive bending of the flexible screen can be avoided. It is understood that the positioning groove 191 of the present embodiment can also be disposed on the second connecting arm 1212, and the positioning portion 192 is correspondingly disposed on the first connecting arm 1112.
Further, the first mounting portion 11 may include only the first mounting plate 112, and the second mounting portion 12 may include only the second mounting plate 122. The transfer arm 15 is disposed outside the first mounting plate 112 and the second mounting plate 122 so that the first mounting plate 112 and the second mounting plate 122 are rotatably coupled and the escape portion 13 is formed therebetween.
Before the flexible screen is tested, the flexible screen needs to be installed on the jig main body 10. Specifically, the relative positions of the first mounting portion 11 and the second mounting portion 12 are adjusted so that the first stopper portion 16 and the second stopper portion 17 abut against each other. The first mounting plate 112 and the second mounting plate 122 are used to fix the flexible screen with the surfaces facing upward, the flexible screen is placed in the receiving groove 18, and is adhered to the first mounting plate 112 and the second mounting plate 122 by the adhesive, thereby completing the mounting of the flexible screen on the jig main body 10.
Further, referring to fig. 1 and 4, the flexible screen testing fixture 100 of the present embodiment further includes a base 40 and a swing arm 20 rotatably mounted on the base 40. The swing arm 20 is detachably connected with the first mounting part 11, the second mounting part 12 is fixedly connected on the base 40, and the driving shaft 30 is arranged at the position of the swing arm 20 corresponding to the avoiding part 13.
In the present embodiment, the swing arm 20 includes a pair of first swing link 21 and second swing link 22 disposed in opposite and parallel. The ends of the first swing link 21 and the second swing link 22 are connected through a connecting rod 23, so that the stability of the whole structure of the swing arm 20 is enhanced, and the consistency of the swing arm 20 in rotation can be ensured. In addition, the swing arm 20 may only include the first swing link 21 and the second swing link 22, or the swing arm 20 may only be a single independent swing link.
In this embodiment, the end of the first swing link 21 is provided with a rotating shaft 211 protruding outwards, and one end of the base 40 is provided with a fixing plate 41. The first swing link 21 is rotatably connected to the fixed plate 41 through a rotating shaft 211, so as to rotatably connect the swing arm 20 with the base 40. The end of the second swing link 22 is connected to a driving shaft 30, and the driving shaft 30 may be a power shaft of a motor or a shaft connected to the power shaft of the motor.
In the present embodiment, the axis of the rotating shaft 211 is collinear with the axis of the drive shaft 30, and both are collinear with the axis of the adaptor pin 153. When the motor acts on the driving shaft 30 to rotate, the rotating axis of the driving shaft 30 is consistent with the axis of the switching pin 153, so that the flexible screen can be bent along the bending axis, and the test state of the flexible screen is ensured to be in accordance with the bending state when the flexible screen is used.
In addition, the first swing link 21 and the second swing link 22 of the present embodiment are both provided with through holes 24, the corresponding positions on both sides of the first mounting portion 11 are provided with engaging portions 113 protruding outward, and the engaging portions 113 are disposed on the outer sides of the two first side arms 1111. The engaging portion 113 is inserted into the through hole 24, and the first mounting portion 11 can be detachably mounted on the swing arm 20. The aperture of the through hole 24 of the present embodiment is larger than the outer diameter of the engaging portion 113 to provide a moving stroke for the engaging portion 113 when the first mounting portion 11 rotates. In addition, in the above embodiment, a clamping groove may be further disposed on the swing arm 20, and the first mounting portion 11 and the swing arm 20 are detachably connected through the matching of the clamping groove and the engaging portion 113.
Further, in the present embodiment, the base 40 includes a bottom plate 42 and a mount table 43. A mounting table 43 is provided near one side of the base plate 42, and the surface of the mounting table 43 is higher than the surface of the base plate 42, and the mounting table 43 is used for fixing the second mounting portion 12.
In the second mounting portion 12 of the present embodiment, the two second side arms 1211 are provided with mounting holes 123, and the mounting holes 123 are waist holes. The mounting base 43 is provided with a fastening hole 431 at a position corresponding to the mounting hole 123, and a fastening member (not shown) is inserted through the mounting hole 123 and the fastening hole 431 to fix the second mounting portion 12 to the base 40.
In this embodiment, a receiving groove 44 is formed between the mounting platform 43 and the bottom plate 42 to receive the first limiting portion 16 and the second limiting portion 17, and to receive a bending region of the flexible screen in a bending state. In addition, one side of the bottom plate 42 far away from the mounting platform 43 is provided with a pair of abutting blocks 45, the abutting blocks 45 are used for abutting against the two first side arms 1111 of the first mounting part 11 so as to carry out limiting support below the first mounting part 11, and the upper surface of the abutting blocks 45 is flush with the upper surface of the mounting platform 43. The flexible screen test fixture 100 not only can test the bending life of the folded screen, but also can test the bending life of the folded screen.
For the test of the bending life of the external folding screen, as shown in fig. 1, in the tool main body 10 for testing the external folding screen, if the surfaces of the first mounting plate 112 and the second mounting plate 122 for attaching the flexible screen are used as the upper surfaces, the first limiting portion 16 and the second limiting portion 17 are both provided with the upper surfaces of the first supporting frame 111 and the second supporting frame 121, and the positioning groove 191 and the positioning portion 192 are provided on the lower surfaces of the first connecting arm 1112 and the second connecting arm 1212.
After the external folding screen is fixedly installed in the jig main body 10, the jig main body 10 is turned upside down to make the display surface of the external folding screen face downward, and then the jig main body 10 after turning upside down is installed on the base 40. Specifically, the first mounting portion 11 is detachably connected to the swing arm 20 by the engagement of the engaging portion 113 and the through hole 24, and the second mounting portion 12 is fixed to the mounting table 43 by a fastener. The driving shaft 30 is actuated to rotate the swing arm 20, so that the first mounting part 11 rotates relative to the second mounting part 12, and the bending life of the external folding screen is tested.
For the test of the bending life of the inward-folding screen, the test fixture is substantially the same as the test fixture of the outward-folding screen of the embodiment, and the difference is mainly that, in the test fixture main body 10 of the inward-folding screen, if the surfaces of the first mounting plate 112 and the second mounting plate 122 for attaching the flexible screen are used as the upper surfaces, the first limiting portion 16 and the second limiting portion 17 are both provided with the lower surfaces of the first support frame 111 and the second support frame 121, and the positioning groove 191 and the positioning portion 192 are provided on the upper surfaces of the first connecting arm 1112 and the second connecting arm 1212.
After the inward-folding screen is fixedly installed in the jig main body 10, the jig main body 10 is installed on the base 40, and the display surface of the inward-folding screen faces upwards. Specifically, the first mounting portion 11 is detachably connected to the swing arm 20 by the engagement of the engaging portion 113 and the through hole 24, and the second mounting portion 12 is fixed to the mounting table 43 by a fastener. The driving shaft 30 is actuated to rotate the swing arm 20, so that the first mounting part 11 rotates relative to the second mounting part 12, and the bending life of the inner folding screen is tested.
To the flexible screen test fixture of this application, the first installation department and the second installation department of tool main part are used for the non-bending zone of fixed flexible screen both sides respectively, and first installation department can be dismantled with the swing arm and be connected, and drive shaft drive tool main part can make first installation department be close to or keep away from the second installation department to the bending zone that makes the flexible screen takes place to bend, with the number of times of buckling of confirming the flexible screen. This test fixture overall structure is simple, through the drive shaft alright realize the rotation of the relative second installation department of first installation department, it is more convenient to operate. Simultaneously, rotatable coupling is realized through the switching arm to first installation department and second installation department, and when first installation department and second installation department were close to each other, the bending zone of flexible screen can the holding in the common portion of dodging that forms of first installation department and second installation department and switching arm to only buckle in the bending zone when making flexible screen buckle, thereby avoid the buckling of non-bending zone. In addition, the both ends of switching arm respectively with first installation department and second installation department rotatable coupling to make the non-bending region axis of rotation of bending zone both sides not collinear, when guaranteeing the crooked radian of bending zone, can reduce the stress of flexible screen bend, prevent the extra damage of flexible screen, guarantee the accuracy of flexible screen life-span test of buckling.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. The utility model provides a flexible screen test fixture which characterized in that includes:
the fixture comprises a fixture main body, a flexible screen bending area and a flexible screen bending area, wherein the fixture main body comprises a first mounting part and a second mounting part which are rotatably connected, and the first mounting part and the second mounting part are respectively used for fixing non-bending areas on two sides of the flexible screen bending area; and
the two ends of the transfer arm are respectively and rotatably connected with the first mounting part and the second mounting part; the switching arm comprises a plurality of switching pieces, two adjacent switching pieces are rotatably connected, and the rotating axis of each switching piece is collinear with the bending axis of the flexible screen; the jig main body is driven by a driving shaft to enable the first mounting part and the second mounting part to rotate relatively, so that the first mounting part and the second mounting part are close to or far away from each other; first installation department with when the second installation department is close to each other, first installation department with the second installation department and the switching arm forms jointly dodges the portion, with the holding the bending zone of flexible screen.
2. The flexible screen test fixture of claim 1, wherein the first mounting portion comprises a first mounting plate for fixing one of the non-bending regions of the flexible screen, and the second mounting portion comprises a second mounting plate for fixing the other non-bending region of the flexible screen; and a space is arranged between the first mounting plate and the second mounting plate, and the space is the avoiding part.
3. The flexible screen test fixture of claim 2, wherein there are two sets of the adapter arms, and the two sets of the adapter arms are respectively disposed on two sides of the gap.
4. The flexible screen test fixture according to claim 2, wherein the first mounting portion is provided with a first limiting portion, and the second mounting portion is provided with a second limiting portion matched with the first limiting portion; the first installation part is far away from the second installation part rotates, and arrives first spacing portion with during spacing portion looks butt of second, first installation part stall, so that first mounting panel with the second mounting panel is located the coplanar.
5. The flexible screen test fixture according to claim 1, wherein the first mounting portion and the second mounting portion are provided with accommodating grooves for accommodating the flexible screen, and the depth of each accommodating groove is greater than the thickness of the flexible screen.
6. The flexible screen testing jig according to claim 1, wherein a positioning groove is formed in one side, away from the avoiding portion, of the first mounting portion, and a positioning portion matched with the positioning groove is convexly formed in one side, away from the avoiding portion, of the second mounting portion; the first installation part is close to the second installation part rotates, and extremely the joint of the positioning part is in the positioning groove, the first installation part stops rotating.
7. The flexible screen test fixture according to claim 1, further comprising a base and a swing arm rotatably connected to the base, wherein the swing arm is detachably connected to the first mounting portion, the second mounting portion is fixedly connected to the base, and the driving shaft is disposed at a position of the swing arm corresponding to the avoiding portion.
8. The flexible screen test fixture of claim 7, wherein the swing arm comprises two swing rods arranged in parallel and opposite to each other, and the first mounting portion is detachably connected between the two swing rods; one of the swing rods is provided with a rotating shaft protruding outwards so as to be rotatably connected with the base, and the other swing rod is connected with the driving shaft.
9. The flexible screen test fixture according to claim 7, wherein the second mounting portion is provided with a mounting hole, and the base is provided with a fastening hole; the fastener passes through the mounting hole and the fastening hole so that the second mounting part is fixed on the base.
10. The flexible screen testing jig of claim 7, wherein a clamping portion is convexly provided at an outer side of the first mounting portion, and a via hole through which the clamping portion passes is provided on the swing arm.
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| CN201811543359.8A CN109490117B (en) | 2018-12-17 | 2018-12-17 | Flexible screen test fixture |
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| CN201811543359.8A CN109490117B (en) | 2018-12-17 | 2018-12-17 | Flexible screen test fixture |
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| CN109490117B true CN109490117B (en) | 2021-07-16 |
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| CN110010005A (en) * | 2019-04-18 | 2019-07-12 | 珠海格力电器股份有限公司 | A kind of flexible folding display screen and display device |
| CN112082853B (en) * | 2019-06-12 | 2023-12-08 | 三赢科技（深圳）有限公司 | Bending device |
| KR102354947B1 (en) * | 2019-11-14 | 2022-01-25 | 주식회사 코보텍 | Jig device for bending reliability test apparatus |
| CN111638044A (en) * | 2020-05-09 | 2020-09-08 | 苏州市计量测试院 | Flexible screen bending test device |
| CN111650201B (en) * | 2020-07-15 | 2023-06-06 | Oppo（重庆）智能科技有限公司 | Detection device and detection method |
| CN113188451B (en) * | 2021-04-28 | 2023-04-18 | 京东方科技集团股份有限公司 | Jig for testing bending error amount of flexible display module and testing method thereof |
| CN113390707A (en) * | 2021-06-22 | 2021-09-14 | 昆山国显光电有限公司 | Bending test fixture, bending radius test method and bending angle test method |
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