CN107860561B - Flexible display screen bending characteristic measuring device - Google Patents
Flexible display screen bending characteristic measuring device Download PDFInfo
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- CN107860561B CN107860561B CN201711100666.4A CN201711100666A CN107860561B CN 107860561 B CN107860561 B CN 107860561B CN 201711100666 A CN201711100666 A CN 201711100666A CN 107860561 B CN107860561 B CN 107860561B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
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Abstract
The invention discloses a device for measuring the bending characteristic of a flexible display screen. The flexible display screen bending characteristic measuring device comprises a rack, a bending mechanism and an optical detection piece, wherein the bending mechanism comprises a controller, a motor, a fixing frame and a transmission mechanism, the fixing frame comprises a fixing part, a moving part, a clamping part and a pressing part, and the transmission mechanism comprises a crank, a rocker, a connecting rod, a sliding piece and a bending gear. According to the device for measuring the bending characteristic of the flexible display screen, provided by the invention, the motor rotates in a unidirectional mode all the time, so that repeated bending of the flexible display screen can be realized, and impact on the motor is effectively reduced.
Description
Technical Field
The invention relates to the technical field of measuring tools, in particular to a device for measuring the bending characteristic of a flexible display screen.
Background
A flexible display screen is a flexible display device which is made of soft materials and can be deformed and bent.
In the production process of the flexible display screen, a measuring machine is required to be used for detecting the flexible display screen so as to ensure the reliable performance of the flexible display screen, wherein the bending test of the flexible display screen is an important test.
Among the prior art, measuring device includes the frame usually, bending mechanism and optical detection spare, through bending mechanism to the flexible display screen repeated bending and through its optical property of optical detection spare real-time detection, in bending process, needs the corotation of control motor and upset to reach the crooked and recovery of flexible display screen usually, and is great to the damage of motor to the rotation angle of motor is difficult to control, thereby influences the crookedness of flexible display screen.
Disclosure of Invention
The invention aims to provide a device for measuring the bending characteristic of a flexible display screen, wherein a motor rotates unidirectionally all the time, so that repeated bending of the flexible display screen can be realized, and impact on the motor is effectively reduced.
In order to solve the technical problems, the invention provides the following technical scheme:
a flexible display screen bending characteristic measuring device comprises a rack, a bending mechanism and an optical detection piece, wherein the optical detection piece is installed on the rack, the bending mechanism comprises a controller, a motor, a fixing frame and a transmission mechanism, the controller and the motor are both located on the rack, the fixing frame comprises a fixing part, a movable part, a clamping part and a pressing part, the fixing part is fixedly arranged on the rack, and the movable part is rotatably arranged on the rack around a rotating shaft so as to change an included angle between the fixing part and the movable part; the number of the clamping parts is at least two, the clamping parts are used for clamping the flexible display screen, and the clamping parts are arranged on the fixed part and the movable part; the transmission mechanism comprises a crank, a rocker, a connecting rod, a sliding piece and a bending gear, one end of the crank is rotatably arranged on the rack, the crank is in transmission fit with the motor and the motor can drive the crank to rotate, one end of the rocker is rotatably arranged on the rack, one end of the connecting rod is hinged with one end of the crank, and the other end of the connecting rod is hinged with one end of the rocker; the crank, the rocker, the connecting rod and the rack form a crank-rocker mechanism together, and the crank can drive the rocker to swing through the connecting rod when rotating; the sliding part is arranged on the rack in a sliding manner, the sliding direction of the sliding part relative to the rack is perpendicular to the rotating shaft of the movable part, the sliding part comprises a first part and a second part, one end of the second part is connected to the middle part of the first part, the first part and the second part form a T shape, one side, far away from the second part, of the first part is provided with a rack, the rack extends along the sliding direction of the sliding part, and the rack is meshed with the bending gear so as to drive the bending gear to rotate when the rack does linear motion; the second part is provided with a slide way, the slide way extends along the direction vertical to the rack, one end of the rocker close to the connecting rod is provided with a slide block, the slide block is embedded in the slide way in a sliding way, and one end of the rocker is hinged with the slide block; when the motor drives the crank to rotate, the rocker swings and the sliding block slides along the slide way so as to push the sliding piece to move linearly along the rack and drive the bending gear to rotate; the bending gear and the rotating shaft of the movable part are coaxially arranged and can synchronously rotate, the crank and the rocker are both pneumatic telescopic rods, and the controller is used for controlling the rotating speed of the motor and the stretching of the pneumatic telescopic rods.
Furthermore, the pressing portion comprises a pressing rod and a sleeve, the sleeve is rotatably sleeved on the outer side of the pressing rod, the bending mechanism further comprises an adjusting assembly, the adjusting assembly comprises a fixed disc, a sun wheel, a gear ring and three planet wheels, the sun wheel is rotatably arranged on the fixed disc, the gear ring is fixed on the fixed disc, the axes of the sun wheel and the gear ring are overlapped, the three planet wheels are uniformly distributed along the circumferential direction of the gear ring, and the sun wheel and the gear ring are in transmission through the planet wheels; the angle of the gear ring rotating around the axis of the gear ring is a first angle, the angle of the planet gear rotating around the axis of the gear ring is a second angle, and the number of teeth of the gear ring is twice of the number of teeth of the sun gear, so that the first angle is twice of the second angle; the sun gear and the bending gear are coaxially arranged and can synchronously rotate, one of the planet gears is coaxially and fixedly connected with the pressing rod, the fixed disc is detachable from the rack, the sun gear is detachable from the bending gear, and the planet gears are detachable from the pressing rod, so that the adjusting assembly can be replaced and the distance between the pressing rod and the movable part or the fixed part can be changed.
Further, clamping part includes fixed block and two clamp tight pieces, two clamp tight piece set up in just can be close to each other or keep away from on the fixed block to form the centre gripping space that is used for the flexible display screen of centre gripping, two the relative one side of clamp tight piece all is provided with the rubber pad, the fixed block is rotatable set up in the fixed part or the movable part, the fixed part with the movable part is the rectangle frame structure, clamping part with between the fixed part or clamping part with slidable cooperation and locking through threaded fastener between the movable part, so that clamping part on the fixed part with distance between the clamping part on the movable part is adjustable.
Further, the bending mechanism further comprises at least two manual adjusting pieces, the at least two manual adjusting pieces are located on the same side of the first part, each manual adjusting piece comprises a top block and a return spring, the top blocks are slidably arranged on the rack, and the sliding direction of the top blocks is perpendicular to that of the first part, so that the top blocks can approach or depart from the first part; the top of kicking block is provided with the ball, the ball with the first part contact just the ball can be followed the first part rolls, the slider can be followed the sliding direction motion of kicking block, so that the rack with crooked gear engagement or break away from, reset spring's one end supports the frame, reset spring's the other end supports the kicking block keep away from one side of first part, reset spring will the kicking block compress tightly in first part and make the rack with crooked gear engagement.
Further, the outer surface of sleeve is provided with the silica gel layer.
Further, the bending mechanism further comprises an angle measuring instrument, the angle measuring instrument is fixed on the rack and is adjacent to the bending gear, and the angle measuring instrument is used for detecting an initial angle and a tail end angle of the bending gear.
Furthermore, the optical detection piece is arranged on the rack, and the distance between the optical detection piece and the fixing part is adjustable.
Further, the frame is a frame structure.
The invention has the following beneficial effects:
the invention discloses a flexible display screen bending characteristic measuring device which comprises a rack, a bending mechanism and an optical detection piece, wherein the bending mechanism comprises a controller, a motor, a fixing frame and a transmission mechanism, the fixing frame comprises a fixing part, a movable part, a clamping part and a pressing part, the transmission mechanism comprises a crank, a rocker, a connecting rod, a sliding piece and a bending gear, the crank, the rocker, the connecting rod and the rack form a crank-rocker mechanism together, the sliding piece is arranged on the rack in a sliding mode, a rack on the sliding piece is meshed with the bending gear, and the crank and the rocker are both pneumatic telescopic rods.
According to the device for measuring the bending characteristic of the flexible display screen, provided by the invention, the motor rotates in a unidirectional mode all the time, so that repeated bending of the flexible display screen can be realized, and impact on the motor is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display screen bending characteristic measurement apparatus provided in embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of the clamping portion;
FIG. 3 is a schematic view of the transmission mechanism and adjustment assembly;
FIG. 4 is a schematic view of the fitting relationship between the fixing frame and the transmission mechanism;
FIG. 5 is a schematic structural diagram of an adjustment assembly;
fig. 6 is a partially enlarged schematic view of fig. 3.
In the figure: 10-a measuring device; 11-an optical detection member; 12-a bending mechanism; 120-a fixed mount; 121-a transmission mechanism; 122-a fixed part; 123-a movable part; 124-a clamping portion; 125-a pressing part; 127-fixed block; 128-a clamping block; 130-crank; 131-a rocker; 132-a connecting rod; 133-a slide; 134-curved gear; 135-rack; 136-a slide; 137-a slider; 138-pressing rod; 139-a sleeve; 141-an adjustment assembly; 142-a fixed tray; 143-sun gear; 144-a ring gear; 145-planet wheel; 147-a manual adjustment; 148-top block; 149-a return spring; 150-ball bearing.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a device 10 for measuring a bending characteristic of a flexible display panel, where the device 10 includes a frame, a bending mechanism 12, and an optical detection unit 11.
The frame may be a frame structure, the optical detection element 11 is mounted on the frame, and the optical detection element 11 may adopt the prior art, which is not described herein again. The optical detection element 11 is disposed on the frame and has an adjustable distance from the fixing portion 122.
The bending mechanism 12 includes a controller, a motor, a fixing frame 120, and a transmission mechanism 121.
Wherein, the controller and the motor are both located on the frame, and the fixing frame 120 includes a fixing portion 122, a movable portion 123, a clamping portion 124, and a pressing portion 125 (the pressing portion 125 is not shown in fig. 1, and refer to fig. 4).
The fixed portion 122 is fixedly disposed on the frame, and the movable portion 123 is rotatably disposed on the frame around the rotating shaft to change an included angle between the fixed portion 122 and the movable portion 123.
The number of the clamping portions 124 is at least two and is used for clamping the flexible display screen, and the clamping portions 124 are arranged on the fixed portion 122 and the movable portion 123.
Referring to fig. 2, the clamping member may be selected from, but not limited to, the following scheme, the clamping portion 124 includes a fixed block 127 and two clamping blocks 128, the two clamping blocks 128 are disposed on the fixed block 127 and can be close to or far away from each other to form a clamping space for clamping the flexible display screen, and rubber pads are disposed on opposite sides of the two clamping blocks 128.
The fixing block 127 is rotatably disposed on the fixing portion 122 or the movable portion 123, both the fixing portion 122 and the movable portion 123 are rectangular frame structures, and the clamping portion 124 and the fixing portion 122 or the clamping portion 124 and the movable portion 123 are slidably engaged and locked by a threaded fastener, so that a distance between the clamping portion 124 on the fixing portion 122 and the clamping portion 124 on the movable portion 123 is adjustable.
Referring to fig. 3 and 4, the transmission mechanism 121 includes a crank 130, a rocker 131, a connecting rod 132, a slider 133, and a bending gear 134.
One end of the crank 130 is rotatably arranged on the frame, the crank 130 is in transmission fit with the motor, the motor can drive the crank 130 to rotate, one end of the rocker 131 is rotatably arranged on the frame, one end of the connecting rod 132 is hinged to one end of the crank 130, and the other end of the connecting rod 132 is hinged to one end of the rocker 131.
Crank 130, rocker 131, connecting rod 132 and frame form crank rocker mechanism jointly, and crank 130 can drive rocker 131 to swing through connecting rod 132 when rotating.
The sliding member 133 is slidably disposed on the frame, a sliding direction of the sliding member 133 relative to the frame is perpendicular to a rotation axis of the movable portion 123, and the sliding member 133 includes a first portion and a second portion, one end of the second portion is connected to a middle portion of the first portion, and the first portion and the second portion form a T shape.
A rack 135 is arranged on one side of the first portion, which is far away from the second portion, the rack 135 extends along the sliding direction of the sliding piece 133, and the rack 135 is meshed with the bending gear 134, so that the rack 135 can drive the bending gear 134 to rotate when doing linear motion.
The second part is provided with a slide way 136, the slide way 136 extends along the direction vertical to the rack 135, one end of the rocker 131 close to the connecting rod 132 is provided with a slide block 137, the slide block 137 is embedded in the slide way 136 in a sliding way, and one end of the rocker 131 is hinged with the slide block 137.
When the motor drives the crank 130 to rotate, the rocker 131 swings and the slider 137 slides along the slide rail 136, so as to push the slider 133 to move linearly along the rack and drive the bending gear 134 to rotate.
The bending gear 134 and the rotating shaft of the movable portion 123 are coaxially arranged and can synchronously rotate, the crank 130 and the rocker 131 are both pneumatic telescopic rods, and the controller is used for controlling the rotating speed of the motor and the stretching of the pneumatic telescopic rods.
In addition, in order to make the pressing part 125 always press the same part of the flexible display screen, the present embodiment provides the following solutions: referring to fig. 4, the pressing portion 125 includes a pressing rod 138 and a sleeve 139, the sleeve 139 is rotatably sleeved outside the pressing rod 138, and a silicone layer may be disposed on an outer surface of the sleeve 139.
Referring to fig. 5, the bending mechanism 12 further includes an adjusting assembly 141, and the adjusting assembly 141 includes a fixed disk 142, a sun gear 143, a ring gear 144, and three planet gears 145.
The sun gear 143 is rotatably disposed on the fixed plate 142, the ring gear 144 is fixed on the fixed plate 142, the sun gear 143 coincides with the ring gear 144 in axis, the three planet gears 145 are uniformly distributed along the circumference of the ring gear 144, and the sun gear 143 and the ring gear 144 are driven by the planet gears 145.
The angle of rotation of the ring gear 144 about its axis is a first angle, the angle of rotation of the planet gear 145 about the axis of the ring gear 144 is a second angle, and the number of teeth of the ring gear 144 is twice the number of teeth of the sun gear 143, so that the first angle is twice the second angle.
The sun gear 143 and the bending gear 134 are coaxially arranged and can synchronously rotate, one planetary gear 145 is coaxially and fixedly connected with the pressing rod 138, the fixed disc 142 is detachable from the rack, the sun gear 143 and the bending gear 134 are detachable, and the planetary gear 145 and the pressing rod 138 are detachable, so that the adjusting assembly 141 can replace and change the distance between the pressing rod 138 and the movable part 123 or the fixed part 122.
In addition, in order to be able to manually adjust the bending starting point of the flexible display screen, the following solutions are provided: the bending mechanism 12 further comprises at least two manual adjustments 147.
Referring to fig. 6, at least two manual adjusting members 147 are located on the same side of the first portion, the manual adjusting members 147 include a top block 148 and a return spring 149, the top block 148 is slidably disposed on the frame, and a sliding direction of the top block 148 is perpendicular to a sliding direction of the first portion, so that the top block 148 can move toward or away from the first portion.
The top of the top block 148 is provided with a ball 150, the ball 150 is in contact with the first portion and the ball 150 can roll along the first portion, and the slider 133 can move in the sliding direction of the top block 148 to engage or disengage the rack 135 with or from the bent gear 134.
One end of a return spring 149 abuts against the frame, the other end of the return spring 149 abuts against a side of the top block 148 remote from the first portion, and the return spring 149 presses the top block 148 against the first portion and engages the rack 135 with the curved gear 134.
Further, the bending mechanism 12 further includes an angle measuring device fixed to the frame and adjacent to the bending gear 134, and the angle measuring device is used for detecting an initial angle and a terminal angle of the bending gear 134.
The flexible display screen bending characteristic measuring device 10 comprises a rack, a bending mechanism 12 and an optical detection piece 11, wherein the bending mechanism 12 comprises a controller, a motor, a fixed frame 120 and a transmission mechanism 121, the fixed frame 120 comprises a fixed part 122, a movable part 123, a clamping part 124 and a pressing part 125, the transmission mechanism 121 comprises a crank 130, a rocker 131, a connecting rod 132, a sliding piece 133 and a bending gear 134, the crank 130, the rocker 131, the connecting rod 132 and the rack form a crank-rocker mechanism together, the sliding piece 133 is arranged on the rack in a sliding manner, a rack 135 on the sliding piece 133 is meshed with the bending gear 134, and the crank 130 and the rocker 131 are both pneumatic telescopic rods.
According to the device 10 for measuring the bending characteristic of the flexible display screen, provided by the invention, the motor rotates in a unidirectional mode all the time, so that repeated bending of the flexible display screen can be realized, and impact on the motor is effectively reduced.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (6)
1. The utility model provides a flexible display screen bending property measuring device which characterized in that: the measuring device comprises a rack, a bending mechanism (12) and an optical detection piece (11), wherein the optical detection piece (11) is installed on the rack, the bending mechanism (12) comprises a controller, a motor, a fixed frame (120) and a transmission mechanism (121), the controller and the motor are both positioned on the rack, the fixed frame (120) comprises a fixed part (122), a movable part (123), a clamping part (124) and a pressing part (125), the fixed part (122) is fixedly arranged on the rack, and the movable part (123) is rotatably arranged on the rack around a rotating shaft so as to change an included angle between the fixed part (122) and the movable part (123); the number of the clamping parts (124) is at least two, the clamping parts are used for clamping the flexible display screen, and the clamping parts (124) are arranged on the fixed part (122) and the movable part (123); the transmission mechanism (121) comprises a crank (130), a rocker (131), a connecting rod (132), a sliding piece (133) and a bending gear (134), one end of the crank (130) is rotatably arranged on the rack, the crank (130) is in transmission fit with the motor, the motor can drive the crank (130) to rotate, one end of the rocker (131) is rotatably arranged on the rack, one end of the connecting rod (132) is hinged with one end of the crank (130), and the other end of the connecting rod (132) is hinged with one end of the rocker (131); the crank (130), the rocker (131), the connecting rod (132) and the rack form a crank-rocker mechanism together, and the crank (130) can drive the rocker (131) to swing through the connecting rod (132) when rotating; the sliding part (133) is slidably arranged on the rack, the sliding direction of the sliding part (133) relative to the rack is perpendicular to the rotating shaft of the movable part (123), the sliding part (133) comprises a first part and a second part, one end of the second part is connected to the middle part of the first part, the first part and the second part form a T shape, one side of the first part, which is far away from the second part, is provided with a rack (135), the rack (135) extends along the sliding direction of the sliding part (133), and the rack (135) is meshed with the bending gear (134) so that the rack (135) can drive the bending gear (134) to rotate when moving linearly; the second part is provided with a slide way (136), the slide way (136) extends along the direction vertical to the rack (135), one end of the rocker (131) close to the connecting rod (132) is provided with a sliding block (137), the sliding block (137) is embedded in the slide way (136) in a sliding way, and one end of the rocker (131) is hinged to the sliding block (137); when the motor drives the crank (130) to rotate, the rocker (131) swings and the sliding block (137) slides along the slide way (136) so as to push the sliding piece (133) to move linearly along the rack and drive the bending gear (134) to rotate; the bending gear (134) and a rotating shaft of the movable part (123) are coaxially arranged and can synchronously rotate, the crank (130) and the rocker (131) are both pneumatic telescopic rods, and the controller is used for controlling the rotating speed of the motor and the expansion and contraction of the pneumatic telescopic rods;
the bending mechanism (12) further comprises an adjusting assembly (141), the adjusting assembly (141) comprises a fixed disc (142), a sun wheel (143), a gear ring (144) and three planet wheels (145), the sun wheel (143) is rotatably arranged on the fixed disc (142), the gear ring (144) is fixed on the fixed disc (142), the sun wheel (143) is overlapped with the gear ring (144), the three planet wheels (145) are uniformly distributed along the circumferential direction of the gear ring (144), and the sun wheel (143) and the gear ring (144) are transmitted through the planet wheels (145); the angle of rotation of the gear ring (144) around the axis thereof is a first angle, the angle of rotation of the planet wheel (145) around the axis of the gear ring (144) is a second angle, and the number of teeth of the gear ring (144) is twice that of the sun wheel (143), so that the first angle is twice that of the second angle; the sun wheel (143) and the bending gear (134) are coaxially arranged and can synchronously rotate, one of the planet wheels (145) is coaxially and fixedly connected with the pressing rod (138), the fixed disc (142) is detachable from the rack, the sun wheel (143) is detachable from the bending gear (134), and the planet wheel (145) is detachable from the pressing rod (138), so that the adjusting assembly (141) can be replaced and the distance between the pressing rod (138) and the movable part (123) or the fixed part (122) can be changed;
the bending mechanism (12) further comprises at least two manual adjusting pieces (147), the at least two manual adjusting pieces (147) are positioned on the same side of the first part, the manual adjusting pieces (147) comprise top blocks (148) and return springs (149), the top blocks (148) are slidably arranged on the machine frame, the sliding direction of the top blocks (148) is perpendicular to the sliding direction of the first part, so that the top blocks (148) can approach or depart from the first part; the top of the top block (148) is provided with a ball (150), the ball (150) is in contact with the first part, the ball (150) can roll along the first part, the sliding piece (133) can move along the sliding direction of the top block (148) to enable a rack (135) to be meshed with or separated from the bent gear (134), one end of the return spring (149) abuts against the rack, the other end of the return spring (149) abuts against one side, far away from the first part, of the top block (148), and the return spring (149) presses the top block (148) to the first part and enables the rack (135) to be meshed with the bent gear (134).
2. The flexible display screen bending characteristic measuring device according to claim 1, wherein: the clamping part (124) comprises a fixed block (127) and two clamping blocks (128), the two clamping blocks (128) are arranged on the fixed block (127) and can be close to or far away from each other, so as to form a clamping space for clamping the flexible display screen, a rubber pad is arranged on one side of each of the two clamping blocks (128), the fixed block (127) is rotatably arranged on the fixed part (122) or the movable part (123), the fixed part (122) and the movable part (123) are both rectangular frame structures, a slidable engagement between the clamping portion (124) and the fixed portion (122) or between the clamping portion (124) and the movable portion (123) and locking by a threaded fastener, so that the distance between the clamping part (124) on the fixed part (122) and the clamping part (124) on the movable part (123) is adjustable.
3. The flexible display screen bending characteristic measuring device according to claim 1, wherein: the outer surface of the sleeve (139) is provided with a silica gel layer.
4. The flexible display screen bending characteristic measuring device according to claim 1, wherein: the bending mechanism (12) further comprises an angle measuring instrument, the angle measuring instrument is fixed on the rack and is adjacent to the bending gear (134), and the angle measuring instrument is used for detecting an initial angle and a tail end angle of the bending gear (134).
5. The flexible display screen bending characteristic measuring device according to claim 1, wherein: the optical detection piece (11) is arranged on the rack, and the distance between the optical detection piece and the fixing part (122) is adjustable.
6. The flexible display screen bending characteristic measuring device according to claim 1, characterized in that: the frame is of a frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100666.4A CN107860561B (en) | 2017-11-09 | 2017-11-09 | Flexible display screen bending characteristic measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100666.4A CN107860561B (en) | 2017-11-09 | 2017-11-09 | Flexible display screen bending characteristic measuring device |
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| CN107860561A CN107860561A (en) | 2018-03-30 |
| CN107860561B true CN107860561B (en) | 2022-07-12 |
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| CN108680343B (en) * | 2018-05-22 | 2020-11-20 | 歌尔股份有限公司 | Flexible screen detection method and detection device |
| CN108982075B (en) * | 2018-06-08 | 2021-01-22 | 云谷（固安）科技有限公司 | Method for quantifying bending stress of flexible screen body |
| CN109142112A (en) * | 2018-08-31 | 2019-01-04 | 北京玛尔斯精密设备有限公司 | A kind of flexible material bending test apparatus |
| CN209671940U (en) * | 2019-03-21 | 2019-11-22 | 云谷（固安）科技有限公司 | A kind of screen body supporting device and folding flexible display apparatus |
| CN111122132B (en) | 2020-01-10 | 2022-04-15 | 昆山国显光电有限公司 | Flexible screen testing device |
| CN111122131B (en) | 2020-01-10 | 2022-08-09 | 昆山国显光电有限公司 | Testing arrangement of flexible screen |
| CN115782015B (en) * | 2022-12-31 | 2023-07-07 | 浙江斯玛特信息科技有限公司 | Flexible transparent LED display film based on graphene, preparation process and device |
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