CN111766134B - Intelligent flexible display screen performance test system and test method - Google Patents
Intelligent flexible display screen performance test system and test method Download PDFInfo
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- CN111766134B CN111766134B CN202010796057.2A CN202010796057A CN111766134B CN 111766134 B CN111766134 B CN 111766134B CN 202010796057 A CN202010796057 A CN 202010796057A CN 111766134 B CN111766134 B CN 111766134B
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- 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
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- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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Abstract
The invention relates to an intelligent flexible display screen performance test system and a test method. The display screen fatigue testing device has the advantages that the plurality of groups of supporting devices and the plurality of groups of bending devices are arranged alternately, the display screen can be bent in a multi-point mode, the positions of the supporting devices and the positions of the bending devices can be adjusted, and the fatigue testing can be carried out on all directions of the display screen; the fatigue test device can perform fatigue test on a plurality of groups of display screens at one time, and the limiting devices arranged at the two ends of the display screens can prevent the display screens from deviating in the test process, so that the bending positions of the display screens from beginning to end are kept unchanged; secondly can also change the crooked degree of display screen through control elevating gear's lift height, and then can test the display screen can be crooked the highest number of times under the crooked degree of difference.
Description
Technical Field
The invention relates to the technical field of flexible display screen detection, in particular to an intelligent flexible display screen performance test system and a test method.
Background
The flexible display screen is also called a flexible display and is a deformable and bendable display device made of soft materials; the flexible display uses the PHOLED phosphorescent OLED technology, has low power consumption, is directly visible to the flexible panel, is made of a soft material, and is a flexible display device that can be deformed. The parachute catapulting device is mainly characterized in that the parachute catapulting device is designed for a cockpit of a future pilot, and safety during parachute catapulting cannot be affected due to the fact that non-glass materials are used.
The flexible display screen is subjected to fatigue detection before leaving a factory, and the detected variables mainly comprise: degree of bending, number of times of bending, position of bending, etc.; the existing test system may have the following problems during detection: firstly, a bending test can be carried out only for one position in one detection, the flexible display screen cannot be bent in a multi-point mode, and the bending position cannot be adjusted at will; and secondly, only one group of flexible display screens can be bent during fatigue test, so that the detection efficiency is low, and the two ends of the flexible display screens are easy to deviate when the flexible display screens are bent, so that the positions of the two bent front and back parts are staggered.
Therefore, the invention provides an intelligent flexible display screen performance test system and a test method.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: an intelligent flexible display screen performance test system comprises a bottom plate, a supporting device and a bending device, wherein the supporting device is arranged at the top of the bottom plate, the bending device is arranged at the top of the bottom plate, the supporting device and the bending device are respectively provided with two groups, the supporting device and the bending device are distributed alternately, a lifting device is further arranged above the bending device at the top of the bottom plate, the supporting device comprises first strip-shaped plates which are symmetrically arranged and a first rotating shaft which is erected between the two groups of first strip-shaped plates, the first rotating shaft is provided with a plurality of groups, the first rotating shaft is linearly distributed from top to bottom, and a first roller is sleeved outside the first rotating shaft;
the bending device comprises second strip-shaped plates which are symmetrically arranged, a plurality of groups of waist-shaped holes which are linearly distributed along the length direction of the second strip-shaped plates are formed in the side walls of the second strip-shaped plates, a second rotating shaft is erected between two groups of opposite waist-shaped holes, a second roller is sleeved outside the second rotating shaft, the bottoms of the waist-shaped holes are fixedly connected with first springs, the top ends of the first springs are fixedly connected with supporting blocks, and the plurality of groups of second rotating shafts are connected through a synchronous support;
the lifting device comprises L-shaped plates symmetrically arranged at the outer sides of the two groups of second strip-shaped plates and transverse plates erected at the tops of the two groups of L-shaped plates, an oil cylinder is fixedly arranged at the center of the top of the transverse plate, a telescopic rod of the oil cylinder penetrates through the transverse plates and is communicated downwards, a pressing plate perpendicular to the transverse plates is fixedly connected to the tail end of the oil cylinder, and the length of the pressing plate is greater than the distance between the two groups of bending devices;
the top of the bottom plate is symmetrically provided with limiting devices at two ends of the flexible display screen, each limiting device comprises a rectangular block and two groups of guide blocks symmetrically arranged at the bottom of the rectangular block, a guide groove extending along the length direction of the guide block is formed in the position, corresponding to the guide block, of the top of the bottom plate, the guide blocks are in butt joint in the guide grooves in a sliding mode, the side wall of each rectangular block is located above each group of first rollers and is provided with a sliding groove, a butt joint plate is arranged in each sliding groove, and the butt joint plate is connected with the inner wall of each sliding groove through;
the top of the bottom plate is provided with a distance adjusting device for driving the two groups of limiting devices to synchronously move, the distance adjusting device comprises a circular shaft which is rotatably arranged at the center of the top of the bottom plate, two ends of the circular shaft respectively extend to the upper side and the lower side of the bottom plate, a rotating plate is fixedly sleeved at the top of the circular shaft, a connecting plate is arranged between the rotating plate and the rectangular block, and two ends of the connecting plate are respectively hinged with the bottom of the rectangular block and the top of the rotating plate; the bottom of circle axle has been seted up the cross recess, and the bottom of bottom plate is located the periphery of circle axle and has been seted up the thread groove, the roll adjustment device is still including being used for driving circle axle pivoted retaining member, and the retaining member includes the screwed pipe of spiro union in the thread groove and the cross arch of slip butt joint in the cross recess, the bellied end of cross and the inner wall fixed connection of screwed pipe.
Preferably, the length of the second strip-shaped plate is greater than that of the first strip-shaped plate, the supporting block in the waist-shaped hole is a concave block with a circular arc-shaped top surface, and the supporting block is abutted to the outer wall of the second rotating shaft under the action of elastic force of the first spring.
Preferably, the synchronous support consists of a plurality of groups of circular rings and connecting rods arranged between the circular rings, and the circular rings are sleeved outside the second rotating shaft.
Preferably, the top of bottom plate is located the below of first strip shaped plate and sets up the rectangle recess that extends along its length direction, and the both ends of rectangle recess are the closed form, and the bottom of first strip shaped plate and second strip shaped plate all docks the block in the rectangle recess.
Preferably, the top of bottom plate is located the outside of two sets of rectangle recesses and has seted up the locating hole, and the locating hole is provided with the multiunit to be equidistant distribution along the length direction of rectangle recess, the lateral wall of first shaped plate and second strip is leaned on the lower extreme and all is provided with the L type pole of inversion, the horizontal end of L type pole and the outer wall fixed connection of first shaped plate and second strip, and the vertical section of L type pole inserts in the locating hole that corresponds.
Preferably, the sliding grooves are rectangular, the sliding grooves extend to two ends of the rectangular block, and the second springs are provided with multiple groups and are linearly distributed along the length direction of the sliding grooves.
Preferably, four tail ends of the cross-shaped groove are open, the height of the cross-shaped protrusion is smaller than that of the threaded pipe, and the bottom of the cross-shaped protrusion is lower than that of the threaded pipe.
Preferably, the method for performing the bending test on the flexible display screen by using the test system comprises the following steps:
s1 flexible display screen stacking: when the flexible display screen is in an initial state, the two groups of limiting devices are opened, the second roller is manually shifted upwards to be higher than the first roller, the rest second rollers are driven by the synchronous support to synchronously move upwards, the flexible display screen penetrates through the space between the first roller and the second roller, the external force is removed, the second roller moves downwards under the action of self weight, and finally the second roller is contacted with the upper surface of the flexible display screen;
s2, closing the limiting devices: the cross-shaped convex part is butted in the cross-shaped groove, the threaded pipe is rotated, the cross-shaped protrusion serves as a handle of the threaded pipe, the threaded pipe is gradually screwed in the threaded groove in the rotating process, meanwhile, the round shaft is also driven by the cross-shaped protrusion to rotate, the rotating plate is driven by the round shaft to synchronously rotate, two groups of rectangular blocks are synchronously close to each other under the pulling action of the connecting plate, the guide block moves along the guide groove, the guide groove plays a role in guiding and limiting the rectangular blocks, two groups of limiting devices are gradually close to two ends of the flexible display screen, the locking member is continuously rotated until the two ends of the flexible display screen stretch into the sliding groove, the abutting plate is in contact with the two ends of the flexible display screen under the elastic force action of the second spring, at the moment, the threaded pipe is locked and fixed with the threaded groove, the round shaft is prevented from being rotated by external force, and;
s3 bending of the flexible display screen: the oil cylinder is started to drive the telescopic rod to extend, the pressing plate is driven by the oil cylinder to press downwards, the second roller barrel moves along the waist-shaped hole under pressure, the rest second roller barrels move synchronously under the drive of the synchronous support, the first spring contracts under pressure, the flexible display screen is bent into a wavy shape after being pressed by the second roller barrels, two ends of the flexible display screen are drawn out of the sliding groove for a certain distance, the pressure on the second spring is gradually reduced at the moment, and the abutting plate moves towards the opening direction of the sliding groove under the action of the elastic force of the second spring; starting the oil cylinder to drive the telescopic rod to shorten, enabling the second rotating shaft to move upwards along the waist-shaped hole under the action of elastic force of the first spring, enabling the second roller to move upwards under the driving of the second rotating shaft, enabling the rest of second rollers to move upwards synchronously under the driving of the synchronous support, enabling the flexible display screen to be no longer stressed and to recover to be in a flat plate shape, enabling the two ends of the flexible display screen to exert pressure on the abutting plate again, and enabling the second spring to be contracted under the stress;
s4 bending times statistics: and repeating the step S3, counting the bending times of the flexible display screen and the bending degree of the flexible display screen in unit time, counting the bending times of the flexible display screen when the flexible display screen is completely broken, and controlling the extension length of the telescopic rod of the oil cylinder to change the bending degree of the flexible display screen, so that the highest degree of bending of the flexible display screen under different bending degrees can be tested.
Advantageous effects
1. The multiple groups of supporting devices and the multiple groups of bending devices are arranged alternately, the flexible display screen can be bent in multiple points, the positions of the supporting devices and the positions of the bending devices can be adjusted, and fatigue tests can be performed on all directions of the flexible display screen;
2. the fatigue test device can perform fatigue test on a plurality of groups of flexible display screens at one time, and the limiting devices arranged at the two ends of the flexible display screens can prevent the flexible display screens from deviating in the test process, so that the bending positions of the flexible display screens from beginning to end are kept unchanged; the degree that flexible display screen is crooked can also be changed through control elevating gear's lift height to its this experiment of inferior, and then can test the flexible display screen can be crooked under the crooked degree of difference the highest number of times.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of another aspect of the present invention;
FIG. 3 is a partial cutaway view of the present invention;
FIG. 4 is a partial cutaway view of another aspect of the present invention;
FIG. 5 is an enlarged schematic view of area A of FIG. 4 in accordance with the present invention;
fig. 6 is a flow chart of the present invention.
In the figure: 10. a base plate; 11. a guide groove; 12. a rectangular groove; 13. positioning holes; 20. a support device; 21. a first strip-shaped plate; 22. a first rotating shaft; 23. a first roller; 24. an L-shaped rod; 30. a bending device; 31. a second strip; 32. a kidney-shaped hole; 33. a second rotating shaft; 34. a second roller; 35. a first spring; 36. a synchronous support; 40. a limiting device; 41. a rectangular block; 42. a chute; 43. a butt joint plate; 44. a second spring; 45. a guide block; 50. a distance adjusting device; 51. a circular shaft; 511. a cross-shaped groove; 52. rotating the plate; 53. connecting plates; 54. a locking member; 541. a threaded pipe; 542. a cross-shaped bulge; 55. a thread groove; 60. a lifting device; 61. an L-shaped plate; 62. a transverse plate; 63. an oil cylinder; 64. and (7) pressing a plate.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 5, an intelligent flexible display performance test system includes a base plate 10, two sets of support devices 20 disposed on the top of the base plate 10, and two sets of bending devices 30 disposed on the top of the base plate 10, wherein the support devices 20 and the bending devices 30 are respectively disposed in two sets, the support devices 20 and the bending devices 30 are distributed at intervals, and the bottom of the base plate 10 is provided with support legs at four corners; the supporting device 20 comprises first strip plates 21 which are symmetrically arranged and first rotating shafts 22 which are erected between the two groups of first strip plates 21, the first rotating shafts 22 are provided with a plurality of groups, the first rotating shafts 22 are linearly distributed from top to bottom, and first rollers 23 are sleeved outside the first rotating shafts 22; the bending device 30 comprises second strip plates 31 which are symmetrically arranged, the length of each second strip plate 31 is greater than that of each first strip plate 21, a plurality of groups of waist-shaped holes 32 which are linearly distributed along the length direction of each second strip plate 31 are formed in the side wall of each second strip plate 31, a second rotating shaft 33 is erected between every two groups of opposite waist-shaped holes 32, a second roller 34 is sleeved outside each second rotating shaft 33, the bottom of each waist-shaped hole 32 is fixedly connected with a first spring 35, the top end of each first spring 35 is fixedly connected with a supporting block, each supporting block is a concave block with an arc-shaped top surface, and the supporting blocks are abutted to the outer wall of each second rotating shaft 33 under the action of elastic force of the first springs 35;
the multiple groups of second rotating shafts 33 are connected through a synchronous support 36, the synchronous support 36 consists of multiple groups of circular rings and connecting rods arranged between the circular rings, the circular rings are sleeved outside the second rotating shafts 33, when the uppermost second rotating shaft 33 moves along the kidney-shaped hole 32, the rest second rotating shafts 33 also move synchronously along the kidney-shaped hole 32 under the driving of the synchronous support 36, the flexible display screen penetrates between the first roller 23 and the second roller 34, the upper surface of the flexible display screen is in contact with the outer wall of the second roller 34, and the lower surface of the flexible display screen is in contact with the outer wall of the first roller 23;
the top of the bottom plate 10 is arranged below the first strip-shaped plate 21 and is provided with a rectangular groove 12 extending along the length direction, two ends of the rectangular groove 12 are closed, the bottoms of the first strip-shaped plate 21 and the second strip-shaped plate 31 are butted in the rectangular grooves 12, the top of the bottom plate 10 is positioned at the outer sides of the two groups of rectangular grooves 12 and is provided with a plurality of positioning holes 13, the positioning holes 13 are provided with a plurality of groups, and are distributed at equal intervals along the length direction of the rectangular groove 12, inverted L-shaped rods 24 are respectively arranged at the lower ends of the outer side walls of the first strip-shaped plate 21 and the second strip-shaped plate 31, the horizontal ends of the L-shaped rods 24 are fixedly connected with the outer walls of the first strip-shaped plate 21 and the second strip-shaped plate 31, the vertical sections of the L-shaped rods 24 are inserted into the corresponding positioning holes 13, when the supporting device 20 and the bending device 30 are installed, the positions of the supporting device 20 and the bending device 30 can be changed arbitrarily, so that the bending position of the flexible display screen is changed;
the top of the bottom plate 10 is symmetrically provided with limiting devices 40 at two ends of the flexible display screen, each limiting device 40 comprises a rectangular block 41 and two groups of guide blocks 45 symmetrically installed at the bottom of the rectangular block 41, a guide groove 11 extending along the length direction of the guide block is formed in the position, corresponding to the guide block 45, of the top of the bottom plate 10, two ends of the guide groove 11 are in an opening shape, the guide block 45 is in sliding butt joint in the guide groove 11, a sliding groove 42 is formed in the position, corresponding to the flexible display screen, of the side wall of the rectangular block 41, the sliding groove 42 is rectangular, the sliding groove 42 extends to two ends of the rectangular block 41, a butt joint plate 43 is arranged in the sliding groove 42, the butt joint plate 43 is connected with the inner wall of the sliding groove 42 through a second spring 44, the second springs 44 are;
the top of the bottom plate 10 is provided with a distance adjusting device 50 for driving the two groups of limiting devices 40 to synchronously move, the center of the top of the bottom plate 10 is provided with a round hole, the distance adjusting device 50 comprises a round shaft 51 which is rotatably arranged in the round hole through a bearing, two ends of the round shaft 51 respectively extend to the upper side and the lower side of the bottom plate 10, the top of the round shaft 51 is fixedly sleeved with a rotating plate 52, the distances from two ends of the rotating plate 52 to the center of the round shaft 51 are equal, a connecting plate 53 is arranged between the rotating plate 52 and the rectangular block 41, and two ends of the connecting plate 53 are respectively hinged with the bottom of the rectangular block 41 and the top of the; the bottom of the circular shaft 51 is provided with a cross groove 511, four tail ends of the cross groove 511 are open, the bottom of the bottom plate 10 is positioned at the periphery of the circular shaft 51 and is provided with a thread groove 55, the distance adjusting device 50 further comprises a locking piece 54 for driving the circular shaft 51 to rotate, the locking piece 54 comprises a thread pipe 541 screwed in the thread groove 55 and a cross projection 542 in sliding butt joint with the cross groove 511, the tail end of the cross projection 542 is fixedly connected with the inner wall of the thread pipe 541, the height of the cross projection 542 is smaller than that of the thread pipe 541, and the bottom of the cross projection 542 is lower than that of the thread pipe 541;
when the flexible display screen is in work, the cross-shaped bulge 542 is partially butted in the cross-shaped groove 511, the threaded pipe 541 is rotated, the cross-shaped bulge 542 serves as a handle of the threaded pipe 541, the threaded pipe 541 is gradually screwed in the threaded groove 55 in the rotating process, meanwhile, the round shaft 51 is driven by the cross-shaped bulge 542 to rotate, the rotating plate 52 is driven by the round shaft 51 to synchronously rotate, the two groups of rectangular blocks 41 are synchronously close under the pulling action of the connecting plate 53, the guide block 45 moves along the guide groove 11, the guide groove 11 plays a role in guiding and limiting the rectangular blocks 41, the two groups of limiting devices 40 are gradually close to the two ends of the flexible display screen, and the locking members 54 are continuously rotated until the two ends of the flexible display screen extend into the sliding grooves 42 and are contacted with the side walls of the butting plate 43;
the top of the bottom plate 10 is also provided with a lifting device 60 above the bending device 30, the lifting device 60 comprises L-shaped plates 61 symmetrically arranged on the outer sides of the two groups of second strip-shaped plates 31, the horizontal sections of the L-shaped plates 61 are fixedly connected with the outer edge of the bottom plate 10, transverse plates 62 are erected at the tops of the two groups of L-shaped plates 61, an oil cylinder 63 is fixedly arranged at the center of the top of the transverse plates 62, a telescopic rod of the oil cylinder 63 penetrates through the transverse plates 62 to pass downwards, the tail end of the oil cylinder 63 is fixedly connected with a pressing plate 64 perpendicular to the transverse plates 62, and the length of the pressing plate 64 is greater than;
as shown in fig. 6, the method for performing the bending test on the flexible display screen by using the test system includes the following steps:
s1 flexible display screen stacking: in an initial state, the two groups of limiting devices 40 are opened, the second roller 34 is manually shifted upwards to enable the second roller 34 to be higher than the first roller 23, the other second rollers 34 are driven by the synchronous support 36 to synchronously move upwards, the flexible display screen penetrates through the space between the first roller 23 and the second roller 34, external force is removed, the second roller 34 moves downwards under the action of self weight, and finally the second roller 34 is contacted with the upper surface of the flexible display screen;
s2, closing the limiting devices: the cross projection 542 is partially butted in the cross groove 511, and the screw tube 541 is screwed, the cross projection 542 serves as a handle of the screw tube 541, the screw tube 541 is gradually screwed in the screw groove 55 during the rotation, meanwhile, the circular shaft 51 is driven by the cross-shaped protrusion 542 to rotate, the rotating plate 52 is driven by the circular shaft 51 to synchronously rotate, the two groups of rectangular blocks 41 synchronously approach under the pulling action of the connecting plate 53, the guide block 45 moves along the guide groove 11, the guide groove 11 plays a role in guiding and limiting the rectangular blocks 41, the two groups of limiting devices 40 gradually approach to two ends of the flexible display screen, the locking members 54 continue to rotate until the two ends of the flexible display screen extend into the sliding grooves 42, the abutting plate 43 contacts with the two ends of the flexible display screen under the action of the elastic force of the second spring 44, and at the moment, the threaded pipe 541 is locked and fixed with the threaded groove 55, so that the circular shaft 51 is prevented from rotating by external force to cause the change of the distance between the two groups of limiting devices 40;
s3 bending of the flexible display screen: the oil cylinder 63 is started to drive the telescopic rod to extend, the pressing plate 64 is driven by the oil cylinder 63 to press downwards, the second roller 34 is pressed to move along the waist-shaped hole 32, the rest of the second rollers 34 are driven by the synchronous bracket 36 to move synchronously, the first spring 35 is pressed to contract, the flexible display screen is bent into a wavy shape after being pressed by the second roller 34, two ends of the flexible display screen are drawn out of the chute 42 for a certain distance, the pressure applied to the second spring 44 is gradually reduced at the moment, and the abutting plate 43 moves towards the opening direction of the chute 42 under the action of the elastic force of the second spring 44; starting the oil cylinder 63 to enable the oil cylinder to drive the telescopic rod to be shortened, enabling the second rotating shaft 33 to move upwards along the kidney-shaped hole 32 under the action of elastic force of the first spring 35, enabling the second roller 34 to move upwards under the driving of the second rotating shaft 33, enabling the rest second rollers 34 to move upwards synchronously under the driving of the synchronous support 36, enabling the flexible display screen to be no longer stressed and to be restored to be in a flat plate shape, enabling the two ends of the flexible display screen to apply pressure to the abutting plate 43 again, and enabling the second spring 44 to be compressed;
s4 bending times statistics: and repeating the step S3, counting the bending times of the flexible display screen and the bending degree of the flexible display screen in unit time, counting the bending times of the flexible display screen when the flexible display screen is completely broken, and controlling the extending length of the telescopic rod of the oil cylinder 63 to change the bending degree of the flexible display screen, so that the highest bending times of the flexible display screen under different bending degrees can be tested.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a flexible display screen performance test system of intelligence, includes bottom plate (10), support device (20) and the device of buckling (30) of setting at bottom plate (10) top, support device (20) respectively are provided with two sets ofly with the device of buckling (30), and support device (20) and buckle device (30) and be alternate distribution, and the top of bottom plate (10) is located the top of buckling device (30) and still is provided with elevating gear (60), its characterized in that: the supporting device (20) comprises first strip-shaped plates (21) which are symmetrically arranged and first rotating shafts (22) which are erected between the two groups of first strip-shaped plates (21), the first rotating shafts (22) are provided with a plurality of groups, the first rotating shafts (22) are linearly distributed from top to bottom, and first rollers (23) are sleeved outside the first rotating shafts (22);
the bending device (30) comprises second strip-shaped plates (31) which are symmetrically arranged, a plurality of groups of waist-shaped holes (32) which are linearly distributed along the length direction of the second strip-shaped plates are formed in the side walls of the second strip-shaped plates (31), a second rotating shaft (33) is erected between two opposite groups of waist-shaped holes (32), a second roller (34) is sleeved outside the second rotating shaft (33), the bottoms of the waist-shaped holes (32) are fixedly connected with first springs (35), the top ends of the first springs (35) are fixedly connected with supporting blocks, and the plurality of groups of second rotating shafts (33) are connected through synchronous supports (36);
the lifting device (60) comprises L-shaped plates (61) symmetrically arranged on the outer sides of the two groups of second strip-shaped plates (31) and a transverse plate (62) erected at the top of the two groups of L-shaped plates (61), an oil cylinder (63) is fixedly installed at the center of the top of the transverse plate (62), a telescopic rod of the oil cylinder (63) penetrates through the transverse plate (62) and is communicated downwards, a pressing plate (64) perpendicular to the transverse plate (62) is fixedly connected to the tail end of the oil cylinder (63), and the length of the pressing plate (64) is larger than the distance between the two groups of bending devices (30);
the top of the bottom plate (10) is symmetrically provided with limiting devices (40) at two ends of the flexible display screen, each limiting device (40) comprises a rectangular block (41) and two groups of guide blocks (45) symmetrically installed at the bottom of the rectangular block (41), a guide groove (11) extending along the length direction of the guide block is formed in the position, corresponding to the guide blocks (45), of the top of the bottom plate (10), the guide blocks (45) are in butt joint in the guide groove (11) in a sliding mode, the side wall of each rectangular block (41) is located above each group of first rollers (23) and provided with a sliding groove (42), a butt joint plate (43) is arranged in the sliding groove (42), and the butt joint plate (43) is connected with the inner wall of the sliding groove (42) through a second spring (;
the top of the bottom plate (10) is provided with a distance adjusting device (50) for driving two groups of limiting devices (40) to synchronously move, the distance adjusting device (50) comprises a circular shaft (51) rotatably arranged at the center of the top of the bottom plate (10), two ends of the circular shaft (51) respectively extend to the upper side and the lower side of the bottom plate (10), a rotating plate (52) is fixedly sleeved at the top of the circular shaft (51), a connecting plate (53) is arranged between the rotating plate (52) and the rectangular block (41), and two ends of the connecting plate (53) are respectively hinged with the bottom of the rectangular block (41) and the top of the rotating plate (52); cross recess (511) have been seted up to the bottom of circle axle (51), and thread groove (55) have been seted up to the periphery that the bottom of bottom plate (10) is located circle axle (51), roll adjustment device (50) still including being used for driving circle axle (51) pivoted retaining member (54), and retaining member (54) are including screwed connection screwed pipe (541) in thread groove (55) and the cross arch (542) of slip butt joint in cross recess (511), the terminal inner wall fixed connection of cross arch (542) and screwed pipe (541).
2. The intelligent flexible display screen performance test system of claim 1, wherein: the length of the second strip-shaped plate (31) is greater than that of the first strip-shaped plate (21), the supporting block in the waist-shaped hole (32) is a concave block with a circular arc-shaped top surface, and the supporting block is abutted to the outer wall of the second rotating shaft (33) under the action of elastic force of the first spring (35).
3. The intelligent flexible display screen performance test system of claim 1, wherein: the synchronous support (36) is composed of a plurality of groups of circular rings and connecting rods arranged among the circular rings, and the circular rings are sleeved outside the second rotating shaft (33).
4. The intelligent flexible display screen performance test system of claim 1, wherein: the rectangle recess (12) that extend along its length direction are seted up to the below that the top of bottom plate (10) is located first strip board (21), and the both ends of rectangle recess (12) are the closed form, and the bottom of first strip board (21) and second strip board (31) all docks the block in rectangle recess (12).
5. The intelligent flexible display screen performance test system of claim 4, wherein: locating hole (13) have been seted up in the outside that the top of bottom plate (10) is located two sets of rectangle recess (12), and locating hole (13) are provided with the multiunit to be equidistant distribution along the length direction of rectangle recess (12), the lateral wall of first bar (21) and second bar (31) leans on the lower extreme to all be provided with L type pole (24) of inversion, and the outer wall fixed connection of the horizontal end of L type pole (24) and first bar (21) and second bar (31), and the vertical section of L type pole (24) inserts in corresponding locating hole (13).
6. The intelligent flexible display screen performance test system of claim 1, wherein: the sliding grooves (42) are rectangular, the sliding grooves (42) extend to two ends of the rectangular block (41), and the second springs (44) are provided with multiple groups and are linearly distributed along the length direction of the sliding grooves (42).
7. The intelligent flexible display screen performance test system of claim 1, wherein: four tail ends of the cross groove (511) are open, the height of the cross bulge (542) is smaller than that of the threaded pipe (541), and the bottom of the cross bulge (542) is lower than that of the threaded pipe (541).
8. The intelligent flexible display screen performance test system of claim 1, wherein: the method for performing the bending test on the flexible display screen by using the test system comprises the following steps:
s1 flexible display screen stacking: in an initial state, the two groups of limiting devices (40) are opened, the second roller (34) is manually shifted upwards to enable the second roller (34) to be higher than the first roller (23), the rest of second rollers (34) are driven by the synchronous support (36) to synchronously move upwards, the flexible display screen penetrates through the space between the first roller (23) and the second roller (34), external force is removed, the second roller (34) moves downwards under the action of self weight, and finally the second roller (34) is contacted with the upper surface of the flexible display screen;
s2, closing the limiting devices: the cross bulge (542) is partially butted in the cross groove (511), the threaded pipe (541) is rotated, the cross bulge (542) serves as a handle of the threaded pipe (541), the threaded pipe (541) is gradually screwed in the threaded groove (55) in the rotating process, meanwhile, the round shaft (51) is driven by the cross bulge (542) to rotate, the rotating plate (52) is driven by the round shaft (51) to synchronously rotate, the two groups of rectangular blocks (41) are synchronously close to each other under the pulling action of the connecting plate (53), the guide block (45) moves along the guide groove (11), the guide groove (11) plays a role in guiding and limiting the rectangular blocks (41), the two groups of limiting devices (40) are gradually close to the two ends of the flexible display screen, the locking members (54) are continuously rotated until the two ends of the flexible display screen extend into the sliding grooves (42), and the abutting plates (43) are contacted with the two ends of the flexible display screen under the elastic force action of the second spring (44), at the moment, the threaded pipe (541) and the threaded groove (55) are locked and fixed, so that the phenomenon that the distance between the two groups of limiting devices (40) is changed due to the fact that the round shaft (51) rotates under the action of external force is avoided;
s3 bending of the flexible display screen: starting an oil cylinder (63) to enable the oil cylinder to drive the telescopic rod to extend, pressing plates (64) are driven by the oil cylinder (63) to press downwards, the second rollers (34) are pressed to move along the kidney-shaped holes (32), the rest second rollers (34) are driven by a synchronous bracket (36) to move synchronously, the first spring (35) is pressed to contract, the flexible display screen is bent into a wave shape after being pressed by the second rollers (34), two ends of the flexible display screen are drawn out for a certain distance from the sliding groove (42), the pressure applied to the second spring (44) is gradually reduced at the moment, and the abutting plate (43) moves towards the opening direction of the sliding groove (42) under the action of the elastic force of the second spring (44); starting the oil cylinder (63), enabling the oil cylinder to drive the telescopic rod to shorten, enabling the second rotating shaft (33) to move upwards along the waist-shaped hole (32) under the action of elastic force of the first spring (35), enabling the second roller (34) to move upwards under the driving of the second rotating shaft (33), enabling the rest of second rollers (34) to move upwards synchronously under the driving of the synchronous support (36), enabling the flexible display screen to be not stressed any more at the moment and to recover to be in a flat plate shape, enabling the two ends of the flexible display screen to apply pressure to the abutting plate (43) again, and enabling the second spring (44) to be compressed and contracted;
s4 bending times statistics: and repeating the step S3, counting the bending times of the flexible display screen and the bending degree of the flexible display screen in unit time, counting the bending times of the flexible display screen when the flexible display screen is completely broken, and controlling the extending length of the telescopic rod of the oil cylinder (63) to change the bending degree of the flexible display screen, so that the highest bending times of the flexible display screen under different bending degrees can be tested.
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