A flexible display panel crimping jig, testing equipment and method

Abstract

The present invention discloses a crimping jig, testing equipment and method for a flexible display panel, and belongs to the field of display panel testing. The crimping jig includes a base plate, a crimping piece and a plurality of adsorption components. The top surface of the base plate has a plurality of vacuum adsorption holes arranged at intervals, and the bottom surface of the base plate has a plurality of grooves arranged at intervals, at least one vacuum adsorption hole is connected to a groove, and the crimping piece is located on the top surface of the base plate to crimp and conduct the flexible display panel. Each adsorption component includes a cover plate, an elastic member and a baffle, the outer peripheral wall of the cover plate is slidably matched with the inner peripheral wall of the groove, the two ends of the elastic member are respectively connected to the bottom of the groove and the cover plate, and the baffle is located on the bottom surface of the base plate. A crimping jig for a flexible display panel provided in an embodiment of the present invention implements the fixation of the flexible display panel on the crimping jig by means of vacuum, thereby realizing the handling and testing process of the flexible display panel.

Description

Technical Field

[0001] The present invention belongs to the field of display panel testing, and more specifically, relates to a crimping jig, testing equipment and method for a flexible display panel. Background Art

[0002] In the field of display panels, flexible display panels (such as OLED) are the main core components of flexible foldable electronic devices and are a new industry direction in the future electronics field with great market prospects. At the same time, due to their flexible characteristics (no CG: hard glass), flexible display panels require additional protection during the production process.

[0003] Conventional crimping jigs are mainly used for hard display panels after CG bonding. The hard display panel is fixed horizontally mainly by the block on the crimping jig, and fixed vertically by the clamps on the left and right sides.

[0004] However, the flexible display panel does not have CG, and the above method cannot be used to fix the flexible display panel on the crimping fixture, which makes the flexible display panel difficult to handle during transportation (between different workstations) and testing. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a crimping jig, testing equipment and method for a flexible display panel, the purpose of which is to fix the flexible display panel on the crimping jig by means of vacuum, thereby realizing the handling and testing process of the flexible display panel.

[0006] In a first aspect, the present invention provides a crimping jig for a flexible display panel, the crimping jig comprising a bottom plate, a crimping piece, and a plurality of adsorption components;

[0007] The top surface of the bottom plate has a plurality of vacuum adsorption holes arranged at intervals, the bottom surface of the bottom plate has a plurality of grooves arranged at intervals, at least one of the vacuum adsorption holes is connected to one of the grooves, and the crimping piece is located on the top surface of the bottom plate to crimp and conduct the flexible display panel;

[0008] Each of the adsorption components includes a cover plate, an elastic member and a baffle. For any one of the adsorption components, the outer peripheral wall of the cover plate is slidably matched with the inner peripheral wall of the groove, and the cover plate seals the opening of the groove. The two ends of the elastic member are respectively connected to the bottom of the groove and the cover plate. The baffle is located on the bottom surface of the bottom plate, and one end of the baffle extends into the corresponding groove.

[0009] Optionally, the base plate includes a first plate body and a second plate body, the first plate body and the second plate body are stacked in parallel, a plurality of vacuum adsorption holes are arranged on the first plate body, and the second plate body has a plurality of through holes arranged at intervals, and a groove is formed between each through hole and the first plate body.

[0010] Optionally, a plurality of connecting bolts are inserted into the second plate body, and the plurality of connecting bolts are arranged at intervals to connect the first plate body.

[0011] Optionally, the outer edges of the first plate body and the second plate body each have a plurality of gaps arranged at intervals.

[0012] Optionally, a suction cup is inserted into the vacuum adsorption hole, and the suction cup and the vacuum adsorption hole are coaxially arranged.

[0013] Optionally, the bottom plate is a square structure, and the bottom plate has a length of 300-500 mm, a width of 300-500 mm, and a height of 50-100 mm.

[0014] In the second aspect, the present invention provides a testing device, which includes a crimping jig and a loading tool for a flexible display panel as described in the first aspect, wherein the loading tool includes a positioning plate and a plurality of bosses, wherein the plurality of bosses are arranged at intervals on the top surface of the positioning plate, and the plurality of bosses correspond to the plurality of grooves one by one, and each of the bosses can be slidably inserted in the corresponding groove.

[0015] Optionally, the top surface of the positioning plate is provided with a plurality of positioning pins, the bottom plate is provided with a plurality of positioning holes, the plurality of positioning pins and the plurality of positioning holes correspond one to one, and each positioning pin can be slidably inserted into the corresponding positioning hole.

[0016] Optionally, the top surface of the positioning plate has an elastic layer, and each of the bosses is arranged to protrude from the elastic layer.

[0017] In a third aspect, the present invention provides a method for using a test device, the method for using is based on the test device according to the second aspect, and the method for using comprises:

[0018] Placing the flexible display panel on the top surface of the bottom plate so that the flexible display panel is attached to the plurality of vacuum adsorption holes;

[0019] Pressing the flexible display panel by means of the press fitting;

[0020] Placing the bottom surface of the bottom plate on the loading tooling so that each of the bosses corresponds to the plurality of the grooves one by one, so as to press each of the cover plates to move toward the bottom of the corresponding groove;

[0021] The loading tool is removed, thereby adsorbing the flexible display panel onto the bottom plate.

[0022] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0023] For a crimping jig of a flexible display panel provided by an embodiment of the present invention, when fixing the flexible display panel, first, the flexible display panel is placed on the top surface of the bottom plate. At this time, the flexible display panel is attached to a plurality of vacuum adsorption holes. Then, the flexible display panel is crimped by a crimping piece, so that the flexible display panel can be lit up by providing an electrical signal to the crimping piece later. Then, each cover plate is driven by an external force to overcome the elastic force of the elastic member and move a certain distance toward the bottom of the groove. Finally, the external force is released, and the elastic force of the elastic member drives the cover plate to move toward the opening of the groove. According to the ideal state equation, since the flexible display panel is sealed to the top of the vacuum adsorption hole, the volume of the sealed space formed by the cover plate and the groove increases (the baffle can limit the cover plate to prevent the cover plate from being separated from the groove under the action of the elastic member after the external force is released), the pressure in the sealed space will drop and form a vacuum, so that under the action of the external atmospheric pressure, the vacuum will firmly adsorb the flexible display panel on the bottom plate, avoiding the use of a hard structure to fix the flexible panel, and then the handling and testing process of the flexible display panel can be realized.

[0024] That is to say, the crimping jig for a flexible display panel provided in the embodiment of the present invention fixes the flexible display panel on the crimping jig by means of vacuum, thereby realizing the handling and testing process of the flexible display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a first schematic diagram of a crimping jig for a flexible display panel provided by an embodiment of the present invention;

[0026] Figure 2 is a second schematic diagram of a crimping jig for a flexible display panel provided by an embodiment of the present invention;

[0027] Figure 3 is a cross-sectional view of a crimping jig provided by an embodiment of the present invention;

[0028] Figure 4 is a structural schematic diagram of another flexible display panel crimping jig provided by an embodiment of the present invention;

[0029] Figure 5 is a structural schematic diagram of a test device provided by an embodiment of the present invention;

[0030] Figure 6 is a side view of a loading tool provided by an embodiment of the present invention;

[0031] Figure 7 The present invention provides a flowchart of a method for using a testing device.

[0032] The symbols in the figure mean the following:

[0033] 1. Bottom plate; 11. Vacuum adsorption hole; 111. Suction cup; 12. Groove; 13. First plate body; 14. Second plate body; 15. Notch; 16. Positioning hole; 17. Bolt; 2. Crimping piece; 3. Adsorption assembly; 31. Cover plate; 32. Elastic piece; 33. Baffle; 4. Loading tooling; 41. Positioning plate; 411. Positioning pin; 42. Boss; 100. Flexible display panel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Figure 1 is a first schematic diagram of a crimping jig for a flexible display panel provided by an embodiment of the present invention, Figure 2 is a second schematic diagram of a crimping jig for a flexible display panel provided by an embodiment of the present invention, Figure 1 and Figure 2 As shown, the crimping fixture includes a base plate 1, a crimping piece 2 and a plurality of adsorption components 3.

[0036] The top surface of the base plate 1 has a plurality of vacuum adsorption holes 11 arranged at intervals, and the bottom surface of the base plate 1 has a plurality of grooves 12 arranged at intervals. At least one vacuum adsorption hole 11 is connected to a groove 12. The crimping piece 2 is located on the top surface of the base plate 1 to crimp and connect the flexible display panel 100.

[0037] Each adsorption component 3 includes a cover plate 31, an elastic member 32 and a baffle 33. For any adsorption component 3, the outer peripheral wall of the cover plate 31 is slidably matched with the inner peripheral wall of the groove 12, and the cover plate 31 seals the opening of the groove 12. The two ends of the elastic member 32 are respectively connected to the bottom of the groove 12 and the cover plate 31. The baffle 33 is located on the bottom surface of the base plate 1, and one end of the baffle 33 extends into the corresponding groove 12.

[0038] For a flexible display panel crimping jig provided in an embodiment of the present invention, when fixing the flexible display panel 100, first, the flexible display panel 100 is placed on the top surface of the bottom plate 1. At this time, the flexible display panel 100 is attached to the multiple vacuum adsorption holes 11. Then, the flexible display panel 100 is crimped by the crimping piece 2, so that the flexible display panel 100 can be lit up by providing an electrical signal to the crimping piece 2. Then, each cover plate 31 is driven by an external force to overcome the elastic force of the elastic member 32 and move toward the bottom of the groove 12 by a certain distance (see Figure 3 ). Finally, the external force is released, and the elastic force of the elastic member 32 drives the cover plate 31 to move in the direction of the opening of the groove 12. According to the ideal state equation, since the flexible display panel 100 is sealed to the top of the vacuum adsorption hole 11, the volume of the sealed space formed by the cover plate 31 and the groove 12 increases (the baffle 33 can limit the cover plate 31 to prevent the cover plate 31 from being separated from the groove 12 under the action of the elastic member 32 after the external force is released), the pressure in the sealed space will drop and form a vacuum, so that under the action of the external atmospheric pressure, the vacuum will firmly adsorb the flexible display panel 100 on the base plate 1, avoiding the use of a hard structure to fix the flexible panel, and then the handling and testing process of the flexible display panel 100 can be realized.

[0039] That is, the crimping jig for a flexible display panel provided in the embodiment of the present invention fixes the flexible display panel 100 on the crimping jig by means of vacuum, thereby realizing the handling and testing process of the flexible display panel 100 .

[0040] Exemplarily, each adsorption assembly 3 may include four elastic members 32 . The elastic members 32 may be springs, and the springs are arranged perpendicular to the cover plate 31 .

[0041] In this embodiment, the base plate 1 includes a first plate body 13 and a second plate body 14, which are stacked in parallel. A plurality of vacuum adsorption holes 11 are arranged on the first plate body 13, and a plurality of through holes are arranged at intervals on the second plate body 14, and a groove 12 is formed between each through hole and the first plate body 13.

[0042] In the above embodiment, the base plate 1 can be easily prepared by assembling the first plate body 13 and the second plate body 14 , thereby reducing the difficulty of processing the base plate 1 .

[0043] Exemplarily, a plurality of connecting bolts are inserted into the second plate body 14 , and the plurality of connecting bolts are arranged at intervals to connect to the first plate body 13 , so that the first plate body 13 and the second plate body 14 are firmly connected by the connecting bolts.

[0044] In addition, the outer edges of the first plate body 13 and the second plate body 14 are each provided with a plurality of gaps 15 arranged at intervals, so as to facilitate the transportation by manpower or robot gripping through the gaps 15 .

[0045] For example, the number of the grooves 12 may be 4-10. The number of vacuum adsorption holes 11 connected to each groove 12 may be 20-30. The bottom plate 1 is a square structure, the length of the bottom plate 1 may be 300-500 mm, the width may be 300-500 mm, and the height may be 50-100 mm, and it may be applicable to a 10-20 inch flexible display panel 100.

[0046] Figure 4 is a schematic diagram of the structure of another flexible display panel crimping fixture provided by an embodiment of the present invention, such as Figure 4 As shown, a suction cup 111 is inserted into the vacuum adsorption hole 11, and the suction cup 111 and the vacuum adsorption hole 11 are arranged coaxially, so that the flexible display panel can be adsorbed by inserting the suction cup 111 into the large-sized vacuum adsorption hole 11, thereby reducing the processing accuracy of the vacuum adsorption hole 11.

[0047] In this embodiment, a plurality of bolts 17 are inserted into the base plate 1, and each bolt 17 extends into a corresponding groove 12 and extends toward the cover plate 31, and a spring is coaxially sleeved on the bolt 17, so that the spring is guided by the bolt 17 to prevent the spring from twisting and dislocating during the compression process.

[0048] Exemplarily, there are four bolts 17 in each groove 12, so as to ensure smooth movement of the cover plate 31 by guiding the multiple springs.

[0049] Figure 5 is a structural schematic diagram of a test device provided by an embodiment of the present invention, Figure 6 is a side view of a loading tool provided by an embodiment of the present invention, combined with Figure 5 and Figure 6 As shown, the testing equipment includes a crimping jig and a loading tool 4 for a flexible display panel as described above. The loading tool 4 includes a positioning plate 41 and a plurality of bosses 42. The plurality of bosses 42 are arranged at intervals on the top surface of the positioning plate 41, and the plurality of bosses 42 correspond to the plurality of grooves 12 one by one. Each boss 42 can be slidably inserted in the corresponding groove 12.

[0050] In the above embodiment, by placing the bottom plate 1 on the loading fixture 4, that is, the bottom surface of the bottom plate 1 is attached to the top surface of the positioning plate 41, the boss 42 will automatically squeeze each cover plate 31 to move toward the bottom of the groove 12, avoiding the use of external force to drive each cover plate 31 to move toward the bottom of the groove 12. In addition, after the cover plate 31 is lifted and moved by the boss 42, the force acting on the cover plate 31 can be released by withdrawing the loading fixture 4, so that the elastic force of the elastic member 32 drives the cover plate 31 to move toward the opening of the groove 12, thereby forming a vacuum in the sealed space.

[0051] That is to say, by taking and placing the crimping jig on the loading tooling 4, the cover plate 31 can be automatically controlled, thereby saving manpower.

[0052] Continue to see Figure 5 There are multiple positioning pins 411 on the top surface of the positioning plate 41, and there are multiple positioning holes 16 on the bottom plate 1. The multiple positioning pins 411 correspond to the multiple positioning holes 16 one by one. Each positioning pin 411 can be slidably inserted in the corresponding positioning hole 16, so that the boss 42 is ensured to be opposite to the groove 12 through the positioning cooperation between the positioning hole 16 and the positioning pin 411.

[0053] In this embodiment, the top surface of the positioning plate 41 has an elastic layer, and each boss 42 is arranged to protrude from the elastic layer.

[0054] In the above embodiment, the elastic layer plays a buffering role on the crimping jig, thereby preventing the bottom plate 1 from being damaged by impact when the bottom plate 1 moves downward and fits with the positioning plate 41 .

[0055] Figure 7 is a flow chart of a method for using a test device provided by an embodiment of the present invention, such as Figure 7 As shown, the method of use is based on the above-mentioned test equipment, and the method of use includes:

[0056] S701 , placing the flexible display panel 100 on the top surface of the bottom plate 1 , so that the flexible display panel 100 is attached to the plurality of vacuum adsorption holes 11 .

[0057] S702 , crimping the flexible display panel 100 using the crimping member 2 .

[0058] It should be noted that the flexible display panel 100 can be turned on by crimping the flexible display panel 100 with the crimping piece 2 , and the flexible display panel 100 can be lit up by only providing an electrical signal to the crimping piece 2 at different workstations.

[0059] S703 , placing the bottom surface of the bottom plate 1 on the loading fixture 4 , so that each boss 42 corresponds to a plurality of grooves 12 one by one, so as to squeeze each cover plate 31 to move toward the bottom of the corresponding groove 12 .

[0060] S704 , removing the loading tool 4 , thereby adsorbing the flexible display panel 100 onto the bottom plate 1 .

[0061] Through the above steps, the flexible display panel can be adsorbed on the bottom plate 1, and the flexible display panel can be always fixed when the crimping jig is transported to other stations or the flexible display panel is tested by the crimping jig. When the next flexible display panel needs to be tested, the flexible display panel that has been tested is removed and the above steps are repeated for the next flexible display panel.

[0062] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crimping jig for a flexible display panel, It is characterized in that The crimping jig comprises a base plate (1), a crimping piece (2) and a plurality of adsorption components (3); The top surface of the bottom plate (1) has a plurality of vacuum adsorption holes (11) arranged at intervals, the bottom surface of the bottom plate (1) has a plurality of grooves (12) arranged at intervals, at least one of the vacuum adsorption holes (11) is connected to one of the grooves (12), and the crimping piece (2) is located on the top surface of the bottom plate (1) to crimp and connect the flexible display panel; Each of the adsorption components (3) comprises a cover plate (31), an elastic member (32) and a baffle (33); for any one of the adsorption components (3), the outer peripheral wall of the cover plate (31) is slidably matched with the inner peripheral wall of the groove (12), and the cover plate (31) seals the opening of the groove (12); the two ends of the elastic member (32) are respectively connected to the bottom of the groove (12) and the cover plate (31); the baffle (33) is located on the bottom surface of the bottom plate (1), and one end of the baffle (33) extends into the corresponding groove (12).

2. A crimping jig for a flexible display panel according to claim 1, It is characterized in that The base plate (1) comprises a first plate body (13) and a second plate body (14); the first plate body (13) and the second plate body (14) are stacked together in parallel; a plurality of vacuum adsorption holes (11) are arranged on the first plate body (13); the second plate body (14) has a plurality of through holes arranged at intervals; a groove (12) is formed between each through hole and the first plate body (13).

3. A crimping jig for a flexible display panel according to claim 2, It is characterized in that A plurality of connecting bolts are inserted into the second plate body (14), and the plurality of connecting bolts are arranged at intervals to connect the first plate body (13).

4. The crimping jig for a flexible display panel according to claim 2, It is characterized in that The outer edges of the first plate body (13) and the second plate body (14) are each provided with a plurality of notches (15) arranged at intervals.

5. A crimping jig for a flexible display panel according to any one of claims 1 to 4, It is characterized in that A suction cup (111) is inserted into the vacuum adsorption hole (11), and the suction cup (111) and the vacuum adsorption hole (11) are coaxially arranged.

6. A crimping jig for a flexible display panel according to any one of claims 1 to 4, It is characterized in that The bottom plate (1) is a square structure, and the bottom plate (1) is 300-500 mm long, 300-500 mm wide, and 50-100 mm high.

7. A test device, It is characterized in that The testing equipment comprises a crimping jig and a loading tool (4) for a flexible display panel as described in any one of claims 1 to 6, wherein the loading tool (4) comprises a positioning plate (41) and a plurality of bosses (42), wherein the plurality of bosses (42) are arranged at intervals on the top surface of the positioning plate (41), and the plurality of bosses (42) correspond one to one to the plurality of grooves (12), and each of the bosses (42) can be slidably inserted into the corresponding groove (12).

8. A testing device according to claim 7, It is characterized in that The top surface of the positioning plate (41) is provided with a plurality of positioning pins (411), and the bottom plate (1) is provided with a plurality of positioning holes (16). The plurality of positioning pins (411) and the plurality of positioning holes (16) correspond one to one, and each positioning pin (411) can be slidably inserted into the corresponding positioning hole (16).

9. A testing device according to claim 7, It is characterized in that The top surface of the positioning plate (41) has an elastic layer, and each of the bosses (42) is arranged to protrude from the elastic layer.

10. A method of using a test device, It is characterized in that The method of use is based on the test device according to any one of claims 7 to 9, and the method of use comprises: Placing the flexible display panel (100) on the top surface of the base plate (1) so that the flexible display panel (100) is attached to the plurality of vacuum adsorption holes (11); The flexible display panel (100) is crimped by the crimping member (2); Placing the bottom surface of the bottom plate (1) on the loading tool (4) so ​​that each of the bosses (42) corresponds to the plurality of grooves (12) one by one, thereby forcing each of the cover plates (31) to move toward the bottom of the corresponding groove (12); The loading tool (4) is removed, thereby adsorbing the flexible display panel (100) onto the base plate (1).

Images