LCD liquid crystal display screen lightening test device

Abstract

The utility model provides an LCD liquid crystal display screen lightening test device comprising a bearing tool box, two opposite ends of the upper surface of the bearing tool box are provided with support plates, and an operation panel is rotatably connected between the support plates; wherein a POGO pressure joint mechanism is arranged below the operation panel, the POGO pressure joint mechanism is supported through a POGO supporting adjustable support, the supporting face, used for supporting the POGO pressure joint mechanism, of the POGO supporting adjustable support is an inclined face, and the included angle between the inclined face and the upper surface of the bearing jig box ranges from 40 degrees to 85 degrees. According to the LCD liquid crystal display screen lightening test device, through cooperation of all the structures, when the FPC of the liquid crystal display screen is detected, the FPC of the liquid crystal display screen can be kept at the optimal bending angle ranging from 45 degrees to 90 degrees, and therefore crease damage to the FPC of the liquid crystal display screen in the operation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD lighting test, in particular to a LCD liquid crystal display screen lighting test device. Background Art

[0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving and no radiation, and has been widely used in such fields as mobile phones, personal digital assistants, digital cameras, computer screens or laptop screens.

[0003] During the production process of LCD, a test fixture is used to connect the gold fingers or connectors of the LCD's flexible printed circuit (FPC) terminals with the probes of the test fixture, so as to use the test fixture to test the LCD lighting. At present, the industry generally adopts a manual method to manually complete the connection between the FPC terminals and the probes of the test fixture. However, the existing method has the following shortcomings:

[0004] First, the production efficiency is low. Since the gold fingers or connectors on the FPC terminals and the probes on the test fixture are relatively delicate components, if the accurate connection between the two is completed manually, it is necessary to slow down and carefully connect them, which is time-consuming and labor-intensive, resulting in low production efficiency. Secondly, the product yield is low. Since the operators manually touch the LCD, many human factors are added, which will inevitably cause contamination or damage to the LCD connector, resulting in a decrease in the product yield. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a lighting test device for an LCD liquid crystal display screen.

[0006] The utility model discloses an LCD liquid crystal display lighting test device, comprising a carrying jig box, wherein support plates are arranged at opposite ends of the upper surface of the carrying jig box, an operation panel is rotatably connected between the support plates, and a probe fixing mechanism is rotatably connected to the operation panel; wherein a POGO crimping joint mechanism is arranged below the operation panel, and the POGO crimping joint mechanism is supported by a POGO support adjustable bracket, and the support surface of the POGO support adjustable bracket for supporting the POGO crimping joint mechanism is an inclined surface, and the angle between the inclined surface and the upper surface of the carrying jig box is 40° to 85°.

[0007] In one embodiment, the jig box includes a jig box bottom plate and a jig box frame arranged on the jig box bottom plate, the jig box frame is used to support the support plate, the operation panel and the POGO support adjustable bracket, and a buffer fixing plate is provided at the end of one side of the jig box bottom plate, and at least two buffers are provided at both ends of the buffer fixing plate for buffering protection during the rotation process of the LCD screen.

[0008] In one embodiment, a jig box panel is fixedly connected to the top of the jig box frame, and the support plate is arranged on the jig box panel, wherein two triangular plates are arranged between the support plates, and an adsorption plate is arranged between the two triangular plates, and the adsorption plate is fixedly connected to the first surfaces of the two triangular plates, and the angle between the first surfaces of the two triangular plates and the jig box panel is 40° to 85°.

[0009] In one embodiment, the POGO support adjustable bracket includes two POGO pressure head support plates, the two POGO pressure head support plates are triangular structures, a POGO pressure head Y-axis adjustment plate is fixed between the two POGO pressure head support plates, the POGO pressure head Y-axis adjustment plate is fixed on the first surfaces of the two POGO pressure head support plates, and the angle between the first surfaces of the two POGO pressure head support plates and the fixture box panel is 40° to 85°; the first surfaces of the two triangular plates are arranged toward one end of the fixture box panel, and the first surfaces of the two POGO pressure head support plates are facing toward The jig box panel is arranged at one end opposite to the other end; wherein, a plurality of first limiting holes are opened on the first surfaces of the two POGO pressure head support plates, and first POGO pressure head fixing holes are symmetrically arranged at both ends of the POGO pressure head Y-axis adjustment plate, and the first POGO pressure head fixing holes respectively correspond to the first limiting holes on the first surfaces of the two POGO pressure head support plates; wherein, a POGO pressure head X-axis adjustment plate is also arranged on the POGO pressure head Y-axis adjustment plate, and a plurality of fixing holes for fixing the POGO pressure head mechanism are arranged on the POGO pressure head X-axis adjustment plate.

[0010] In one embodiment, a plurality of second limiting holes are provided on the POGO press head Y-axis adjustment plate, and a second POGO press head fixing hole is provided on the POGO press head X-axis adjustment plate, and the second POGO press head fixing hole corresponds to the second limiting hole.

[0011] In one embodiment, the first POGO press head fixing hole and the second POGO press head fixing hole are both elongated holes.

[0012] In one embodiment, the POGO crimping head mechanism includes a POGO crimping head base, a lighting PCB board is arranged on the POGO crimping head base, a conductive cloth placement plate is fixedly connected to one side of the lighting PCB board, a conductive cloth is arranged on the conductive cloth placement plate, a POGO crimping head product placement limit plate is fixedly connected above the conductive cloth placement plate, the POGO crimping head product placement limit plate is spaced apart from the conductive cloth placement plate, a limit groove for placing the FPC of the liquid crystal display screen is arranged on the POGO crimping head product placement limit plate, and the limit groove is arranged corresponding to the conductive cloth, and an introduction groove is arranged at the bottom end of the limit groove.

[0013] In one embodiment, one end of the POGO press head base is rotatably connected to a POGO press head anti-static cover plate, the POGO press head anti-static cover plate is buckled with the other end of the POGO press head base, and the bottom surface of the POGO press head anti-static cover plate is fixedly connected to a POGO press head pressure spring block.

[0014] In one embodiment, a magnetic block is further disposed in the POGO press head base, and the magnetic block is disposed below the conductive cloth.

[0015] In one embodiment, the POGO pressure head product placement limit plate is also fixedly connected to a POGO pressure head precision limit plate, and one end of the POGO pressure head precision limit plate is fixedly connected to an elastic pressure block to limit the FPC inserted into the limit groove.

[0016] In one embodiment, two fixing blocks are disposed on the upper surface of one end of the operation panel close to the support plate, a rotating rod is connected between the two fixing blocks, and the probe fixing mechanism is fixedly connected to the rotating rod.

[0017] In one embodiment, the angle between the support surface of the POGO support adjustable bracket and the upper surface of the carrying fixture box is 45°.

[0018] In one embodiment, the angle between the first surface of the triangular plate and the jig box panel is 45°, and the angle between the first surface of the POGO pressure head support plate and the jig box panel is 45°.

[0019] In one embodiment, a signal generator is fixedly installed in the fixture box frame, and the signal generator is electrically connected to the lighting PCB board.

[0020] Compared with the prior art, the LCD display lighting test device of the present invention sets the angle between the support surface of the POGO support adjustable bracket and the upper surface of the load-bearing fixture box to 40°~85°. When testing the FPC of the LCD display, the FPC of the LCD display can be kept at the optimal bending angle of 45°~90°, thereby avoiding crease damage to the FPC of the LCD display during the operation process.

[0021] The above-mentioned technical features can be combined in various technically feasible ways to produce new implementation schemes, as long as the purpose of the present utility model can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in more detail below based on non-limiting embodiments and with reference to the accompanying drawings, wherein:

[0023] Figure 1 The structure diagram of the LCD display lighting test device of the utility model is shown;

[0024] Figure 2 Shows Figure 1 A schematic diagram of the structure of another state of the LCD display lighting test device;

[0025] Figure 3 It shows the schematic diagram of the structure of the fixture box of the LCD display lighting test device;

[0026] Figure 4 It shows the schematic diagram of the POGO support adjustable bracket structure of the LCD liquid crystal display lighting test device;

[0027] Figure 5 It shows the schematic diagram of the POGO crimping head mechanism structure of the LCD display lighting test device;

[0028] Figure 6 The exploded view of the local structure of the POGO crimping head mechanism of the LCD display lighting test device is shown;

[0029] Figure 7 The schematic diagram of the structure of the Auto Flicker probe fixing mechanism of the LCD display lighting test device is shown.

[0030] In the figures, the same components are indicated by the same reference numerals. The figures are not drawn to scale.

[0031] Wherein, the accompanying drawings are marked as follows:

[0032] 1. Loading fixture box; 11. Fixture box bottom plate; 12. Fixture box frame; 13. Fixture box panel; 14. Triangle plate; 15. Adsorption plate; 2. Buffer fixing plate; 3. Buffer; 4. POGO support adjustable bracket; 41. POGO pressure head support plate; 42. POGO pressure head Y-axis adjustment plate; 43. First POGO pressure head fixing hole; 44. Second limit hole; 45. POGO pressure head X-axis adjustment plate; 46. Fixing hole; 47. Second POGO pressure head fixing hole; 5. POGO Crimping head mechanism; 51. POGO crimping head base; 52. POGO crimping head anti-static cover; 53. Lighting PCB board; 54. Conductive cloth placement board; 55. Plug hole; 56. Conductive cloth; 57. POGO crimping head product placement limit plate; 571. Limiting groove; 572. Introduction groove; 58. POGO crimping head precision limit plate; 581. Elastic pressing block; 59. POGO crimping head pressure spring block; 6. Support plate; 7. Operation panel; 8. Fixed block; 9. Rotating rod; 10. Probe fixing mechanism. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, as long as there is no conflict, the various embodiments and features in the various embodiments of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0034] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0035] English meaning:

[0036] PS Mura: The phenomenon of uneven display brightness of LCD products due to external pressure;

[0037] POGO: Thin film probe indenter;

[0038] BTB: Connector, also known as board-to-board connector (Board To Board), is used to connect PCB and module, motherboard, and can also be used to connect PCB and FPC;

[0039] AutoFlicker: Automatically adjust the product screen flicker value.

[0040] like Figure 1-7 As shown, the utility model proposes an LCD liquid crystal display lighting test device, including a carrying fixture box 1, such as Figure 1 and Figure 2As shown, support plates 6 are provided at opposite ends of the upper surface of the carrying jig box 1, and an operation panel 7 is rotatably connected between the two support plates 6. When the LCD screen is lit up for testing, the LCD screen (not shown in the figure) is placed on the operation panel 7. A POGO crimping joint mechanism 5 is provided below the operation panel 7, and the POGO crimping joint mechanism 5 is supported by a POGO support adjustable bracket 4. Among them, the support surface of the POGO support adjustable bracket 4 for supporting the POGO crimping joint mechanism 5 is an inclined surface, and the angle between the inclined surface and the upper surface of the carrying jig box is 40° to 85°.

[0041] The LCD display lighting test device of the present invention sets the angle between the support surface of the POGO support adjustable bracket 4 and the upper surface of the supporting fixture box 1 to be 40°~85°. When testing the FPC of the LCD display, the FPC of the LCD display can be kept at an optimal bending angle of 45°~90°, thereby avoiding crease damage to the FPC of the LCD display during the operation process.

[0042] In an optional embodiment, the angle between the support surface of the POGO support adjustable bracket 4 and the upper surface of the support fixture box 1 is less than 90°. Optionally, the angle between the support surface of the POGO support adjustable bracket 4 and the upper surface of the support fixture box is 40°, 45°, 50°, 55°, 60°, 85°. Preferably, the angle between the support surface of the POGO support adjustable bracket 4 and the upper surface of the support fixture box 1 is 45°.

[0043] In an alternative embodiment, reference Figure 1-3 The jig box 1 includes a jig box bottom plate 11 and a jig box frame 12 arranged on the jig box bottom plate 11. A buffer fixing plate 2 is arranged at the end of one side of the jig box bottom plate 11. At least two buffers 3 are arranged at both ends of the buffer fixing plate 2. The buffer fixing plate 2 cooperates with the buffer 3 to provide buffer protection during the rotation process of the operation panel 7, thereby reducing the adverse effects caused by the vibration of the LCD screen, for example, reducing the phenomenon of uneven brightness of the LCD screen due to external force pressure (PS Mura). When personnel manipulate the rotation of the operation panel 7, there will be an extreme position card control. Compared with the hard limit, the setting of the buffer can reduce the interaction force between the LCD screen and the operation panel, that is, reduce the PS Mura caused by external force pressure.

[0044] In an optional embodiment, the operation panel 7 may be rotatably connected to the support plates 6 on both sides thereof through bearings or rotating rods.

[0045] like Figure 1-3As shown, a signal generator (not shown in the figure) is fixedly installed in the fixture box frame 12, and the signal generator is electrically connected to the lighting PCB board 53. When the LCD liquid crystal display screen is lit up for testing, the signal generator provides the LCD liquid crystal display screen with an ultra-high-definition standard signal source, a detection image, etc., and has functions such as voltage and current measurement.

[0046] like Figure 1-3 As shown, the top of the jig box frame 12 is fixedly connected to the jig box panel 13, and the support plate 6 is arranged on the jig box panel 13, wherein two triangular plates 14 are arranged between the support plates 6, and an adsorption plate 15 is arranged between the two triangular plates 14, and the adsorption plate 15 is fixedly connected to the first surface of the two triangular plates 14, and the angle between the first surface and the jig box panel 13 is 40° to 85°. Optionally, the adsorption plate 15 is magnetically adsorbed. Figure 1 , 2 As shown, when the operation panel 7 is changed from Figure 2 The status shown is rotated counterclockwise to Figure 1 When the state is shown, the bottom end thereof will be adsorbed onto the adsorption plate 15 to realize the operation panel 7 as shown in FIG. Figure 1 The POGO support adjustable bracket 4 and the POGO crimping joint mechanism 5 are exposed, which is convenient for technicians to perform the FPC plugging operation of the LCD screen. Optionally, the cross-sectional structure of the triangle plate 14 is an acute triangle, a right triangle, or an obtuse triangle. When the cross-sectional structure of the triangle plate 14 is a right triangle, the first face of the triangle plate 14 is the face formed by the hypotenuse of the right triangle; when the cross-sectional structure of the triangle plate 14 is an obtuse triangle, the first face of the triangle plate 14 is the face formed by the longest side of the obtuse triangle.

[0047] In an optional embodiment, the angle between the first surface of the triangle plate 14 and the fixture box panel 13 is less than 90°. Optionally, the angle between the first surface of the triangle plate 14 and the fixture box panel 13 is 40°, 45°, 50°, 55°, 60°, or 85°. Preferably, the angle between the first surface of the triangle plate 14 and the fixture box panel 13 is 45°.

[0048] In an optional embodiment, the POGO support adjustable bracket 4 includes two POGO pressure head support plates 41, such as Figure 4As shown, the POGO pressure head support plate 41 is a triangular structure, and a POGO pressure head Y-axis adjustment plate 42 is fixed between the two POGO pressure head support plates 41. The POGO pressure head Y-axis adjustment plate 42 is fixed on the first surface of the two POGO pressure head support plates 41, and the angle between the first surface of the two POGO pressure head support plates 41 and the fixture box panel 13 is 40 to 85°. The first surfaces of the two triangular plates are arranged toward one end of the fixture box panel, and the first surfaces of the two POGO pressure head support plates are arranged toward the other end opposite to one end of the fixture box panel. Among them, a plurality of first limit holes (not shown in the figure) are provided on the first surface of the two POGO pressure head support plates 41. Among them, the length direction of the POGO pressure head Y-axis adjustment plate 42 is the X-axis direction, the width direction of the POGO pressure head Y-axis adjustment plate 42 is the Y-axis direction, the X-axis direction is perpendicular to the Y-axis direction, and the plane formed by the X-axis direction and the Y-axis direction is parallel to the plane where the POGO pressure head Y-axis adjustment plate 42 is located. The first POGO pressure head fixing holes 43 are symmetrically arranged at both ends of the POGO pressure head Y-axis adjustment plate 42, and the first POGO pressure head fixing holes 43 correspond to the first limiting holes on the first surface of the POGO pressure head support plate 41, respectively. The position of the POGO pressure head Y-axis adjustment plate 42 in the Y-axis direction is defined by the positions of the first POGO pressure head fixing holes 43 and the first limiting holes. Specifically, by passing a fixing member (such as a screw, a bolt, etc.) through the first POGO pressure head fixing hole 43 and then fixing and tightening it in the first limiting holes at different positions, the position of the POGO pressure head Y-axis adjustment plate 42 on the first surface of the POGO pressure head support plate 41 can be adjusted, that is, the position of the POGO pressure head Y-axis adjustment plate 42 in the Y-axis direction can be adjusted. Optionally, the cross-sectional structure of the POGO pressure head support plate 41 is an acute triangle, a right triangle, or an obtuse triangle. When the cross-sectional structure of the POGO pressure head support plate 41 is a right triangle, the first surface of the POGO pressure head support plate 41 is the surface formed by the hypotenuse of the right triangle; when the POGO pressure head support plate 41 is an obtuse triangle, the first surface of the POGO pressure head support plate 41 is the surface formed by the longest side of the obtuse triangle.

[0049] It should be noted that the triangle proposed in the embodiment of the present disclosure is not a triangle in the strict sense of geometry, but may have certain changes according to specific needs, processing difficulty, etc. These changes do not affect the protection scope of the present disclosure, for example, one or more corners of the triangle are rounded.

[0050] Furthermore, a POGO press head X-axis adjustment plate 45 is also provided on the POGO press head Y-axis adjustment plate 42, and a plurality of fixing holes 46 for fixing the POGO crimping head mechanism 5 are provided on the POGO press head X-axis adjustment plate 45, and the position of the POGO crimping head mechanism 5 on the POGO press head X-axis adjustment plate 45 is determined by the position of the fixing holes 46.

[0051] Specifically, the position of the POGO crimping head mechanism 5 on the POGO crimping head X-axis adjustment plate 45 can be adjusted by tightening the fixing parts (such as screws, bolts, etc.) in the fixing holes 46 at different positions. According to the different shapes and sizes of FPC and BTB, the position of the POGO crimping head mechanism 5 can be adjusted to ensure that the POGO crimping head mechanism 5 can smoothly complete the crimping, and avoid the phenomenon of creases and breaks in the FPC caused by the pulling of the FPC of the LCD screen during the crimping operation.

[0052] Optionally, the angle between the first surface of the POGO pressure head support plate 41 and the plane where the jig box panel 13 is located is 40°, 45°, 50°, 55°, 60°, 80°, 85°. Preferably, the angle between the first surface of the POGO pressure head support plate 41 and the plane where the jig box panel 13 is located is 45°.

[0053] Through the mutual cooperation of three 45° inclined surfaces (the support surface of the POGO support adjustable bracket 4, the first surface of the triangle plate 14 and the first surface of the POGO pressure head support plate 41), the bending angle of the FPC of the LCD screen can be kept at 45° when the FPC of the LCD screen is tested, thereby avoiding crease damage to the FPC of the LCD screen during the operation process.

[0054] Continue to refer Figure 4 ,like Figure 4 As shown, a plurality of second limiting holes 44 are also provided on the POGO pressure head Y-axis adjustment plate 42, and a second POGO pressure head fixing hole 47 is provided on the POGO pressure head X-axis adjustment plate 45, the second POGO pressure head fixing hole 47 corresponds to the second limiting hole 44, and the POGO pressure head X-axis adjustment plate 45 is defined by the second POGO pressure head fixing hole 47 and the second limiting holes 44 at different positions. Specifically, the position of the POGO pressure head X-axis adjustment plate 45 on the POGO pressure head Y-axis adjustment plate 42 can be adjusted by passing a fixing member (such as a screw, a bolt, etc.) through the second POGO pressure head fixing hole 47 and then fixing and tightening it in the second limiting holes 44 at different positions.

[0055] In an optional embodiment, the first POGO press head fixing hole 43 and the second POGO press head fixing hole 47 are both elongated holes.

[0056] In a specific embodiment, Figure 4As shown, a plurality of first limiting holes can be arranged along the Y-axis direction on the first surface of the POGO pressure head support plate 41, and correspondingly, the long hole of the first POGO pressure head fixing hole 43 extends along the Y-axis direction, that is, extends along the width direction of the POGO pressure head Y-axis adjustment plate 42. A plurality of second limiting holes 44 can be arranged along the X-axis direction, and correspondingly, the long hole of the second POGO pressure head fixing hole 47 extends along the X-axis direction, that is, extends along the length direction of the POGO pressure head Y-axis adjustment plate 42. More specifically, the size, quantity and arrangement of the first limiting hole, the second limiting hole 44, the first POGO pressure head fixing hole 43, the second POGO pressure head fixing hole 47 and the fixing hole 46 can be set according to actual needs.

[0057] The POGO crimping head mechanism 5 is further described below. Figure 5 and Figure 6 As shown, the POGO crimping head mechanism 5 includes a POGO crimping head base 51, on which a lighting PCB board 53 is arranged, one side of the lighting PCB board 53 is fixedly connected with a conductive cloth placing plate 54, on which a conductive cloth 56 is arranged, and above the conductive cloth placing plate 54 is fixedly connected a POGO crimping head product placing limit plate 57, and the POGO crimping head product placing limit plate 57 is spaced apart from the conductive cloth placing plate 54, and a limiting groove 571 for placing the FPC of the liquid crystal display is arranged on the POGO crimping head product placing limit plate 57, and the limiting groove 571 is arranged corresponding to the conductive cloth 56, that is, the limiting groove 571 is located directly above the conductive cloth 56, and an introduction groove 572 is arranged at the bottom end of the limiting groove 571.

[0058] Specifically, see Figure 5 and Figure 6 , the mark A in the figure represents the FPC of the liquid crystal display screen, and the end of the FPC of the liquid crystal display screen is introduced into the introduction groove 572 through the limiting groove 571 and then contacts the conductive cloth 56 placed at the lower end.

[0059] In the specific implementation process, by setting the POGO crimping head mechanism, the POGO crimping head product can be placed on the limit plate 57 in strict accordance with the appearance design of the FPC and BTB connector of the LCD screen, so that the limit groove 571 and the introduction groove 572 opened on the POGO crimping head product placement limit plate 57 can perfectly match the FPC of the LCD screen, thereby achieving precise one-time positioning.

[0060] In order to achieve further accurate positioning, a magnetic block (not shown in the figure) is also provided in the POGO pressure head base 51, and the magnetic block is provided just below the conductive cloth 56. Since the magnetic block embedded in the POGO pressure head base 51 is just below the conductive cloth 56 (limiting groove 571), it can guide the FPC of the LCD screen to be tested when it is placed in the limiting groove 571, and the FPC of the LCD screen to be tested can be easily placed in place.

[0061] In a specific embodiment, two plug holes 55 can be symmetrically arranged on the conductive cloth placement plate 54, and the two ends of the conductive cloth 56 are plugged into the two plug holes 55, and the conductive cloth 56 can be taken out from the two plug holes 55 for replacement. Among them, the conductive cloth 56 is used to enhance the circuit conduction effect, protect the lighting PCB board 53, and increase its life. By using the conductive cloth as the lighting medium, according to the characteristics of the conductive cloth, compared with the current conventional probe, the conductive cloth has a low damage rate and high precision, does not affect the quality of the liquid crystal display, and makes the liquid crystal display screen have a high lighting rate. The distribution density of the conduction points in the conductive cloth is high, and each conduction point can touch multiple metal wires, so the conduction effect is better, and the stability is stronger, the maintenance time is short, the damage of the BTB connector is reduced, and the production efficiency is improved.

[0062] In an optional embodiment, in order to achieve the best conduction effect between the FPC of the LCD screen and the conductive cloth 56, one end of the POGO press head base 51 is rotatably connected to the POGO press head anti-static cover 52, the other end of the POGO press head anti-static cover 52 is buckled with the other end of the POGO press head base 51, and the bottom surface of the POGO press head anti-static cover 52 is fixedly connected to the POGO press head pressure spring block 59.

[0063] Specifically, the POGO press head anti-static cover plate 52 can be rotatably connected to the POGO press head base 51 by means of a rotating shaft.

[0064] By providing a POGO pressure head base 51 and a magnetic block embedded in the POGO pressure head base 51, the FPC of the LCD screen can be magnetically adsorbed, so that the magnetic block has a guiding effect on the FPC when the FPC of the LCD screen is placed in the limiting groove 571, and the FPC of the LCD screen can be easily placed in place; after the end of the FPC of the LCD screen is extended into the introduction groove 572 and contacts the conductive cloth, the FPC of the LCD screen is pressed by the POGO pressure head pressure spring block 59, so that the FPC of the LCD screen is in uniform and sufficient contact with the conductive cloth 56, thereby achieving the best conduction effect.

[0065] Furthermore, a POGO pressure head precision limit plate 58 is fixedly connected to the POGO pressure head product placement limit plate 57, and an elastic pressure block 581 is fixedly connected to one end of the POGO pressure head precision limit plate 58. When the FPC end of the LCD screen is introduced into the introduction groove 572, the FPC of the LCD screen is pressed by the elastic pressure block 581, so as to prevent the FPC of the LCD screen from warping up and being placed out of place, thereby realizing reliable, stable and accurate positioning of the FPC of the LCD screen.

[0066] The elastic pressing block 581 provided on the POGO pressure head precision limit plate 58 can further press the FPC of the LCD screen to prevent the FPC of the LCD screen from warping or shifting, thereby achieving further reliable, stable and accurate positioning of the FPC of the LCD screen.

[0067] In an optional embodiment, if Figure 2 and Figure 7 As shown, two fixing blocks 8 are arranged on the upper surface of one end of the operation panel 7 close to the support plate 6, a rotating rod 9 is connected between the two fixing blocks 8, and a probe fixing mechanism 10 is fixedly connected to the rotating rod 9. The operation panel 7 is used to place the LCD screen to be tested, and a hole (not shown in the figure) is provided on the operation panel 7, and the FPC of the LCD screen can extend from the hole to the bottom of the operation panel 7 for testing, and the probe fixing mechanism 10 is used to fix the LCD screen to be tested, and the LCD screen is fixed or released by rotating the probe fixing mechanism 10 to move it in a direction close to or away from the operation panel 7. It should be further explained that the probe fixing mechanism 10 can select the AutoFlicker probe fixing mechanism.

[0068] The following is an example of an embodiment to illustrate the working process of the LCD display lighting test device of the present application:

[0069] When it is necessary to perform a lighting test on the LCD screen, firstly, the lighting test device needs to be connected to an external power supply so that the signal generator and the AutoFlicker probe fixing mechanism 10 in the lighting test device are in a working state, and then the AutoFlicker probe fixing mechanism 10 is adjusted under the rotational connection relationship between the rotating rod 9 and the two fixing blocks 8 to rotate, such as Figure 2 As shown, the AutoFlicker probe fixing mechanism 10 is rotated to be away from the operation panel 7, and then the LCD screen is placed on the upper surface of the operation panel 7, and the AutoFlicker probe fixing mechanism 10 is rotated to be as shown in FIG. Figure 2 The state shown in the figure fixes the LCD screen; then rotate the operation panel 7 by 45° to the position shown in the figure. Figure 1In the state shown, the lower surface of the operation panel 7 is attracted to the adsorption plate 15, and the POGO support adjustable bracket 4 and the POGO crimping head mechanism 5 below the operation panel 7 are exposed. According to the specific situation on site, the specific position of the POGO crimping head mechanism 5 on the POGO support adjustable bracket 4 can be adjusted to adapt to the LCD screen that needs to be detected.

[0070] Specifically, by passing a screw or bolt through the first POGO press head fixing hole 43 and then fixing and tightening it in the first limiting hole at different positions, the position of the POGO press head Y-axis adjustment plate 42 on the first surface of the POGO press head support plate 41 can be adjusted. By passing a screw or bolt through the second POGO press head fixing hole 47 and then fixing and tightening it in the second limiting hole 44 at different positions, the position of the POGO press head X-axis adjustment plate 45 on the POGO press head Y-axis adjustment plate 42 can be adjusted. By tightening the POGO press head mechanism 5 in different fixing holes 46 with screws or bolts, the position of the POGO press head mechanism 5 on the POGO press head X-axis adjustment plate 45 can be adjusted.

[0071] After adjusting the POGO crimping head mechanism 5, open the POGO crimping head anti-static cover plate 52 that is buckled with the POGO crimping head base 51, and place the end of the FPC of the LCD screen in the limiting groove 571 on the POGO crimping head product placement limiting plate 57. Since the magnetic block embedded in the POGO crimping head base 51 is just below the limiting groove 571, the magnetic block guides the FPC of the LCD screen when placing it into the limiting groove 571, so that the FPC of the LCD screen can be easily placed in place, and the end of the FPC of the LCD screen is extended into the introduction groove 572, so that the end of the FPC of the LCD screen contacts the conductive cloth 56 below the introduction groove 572; then use the elastic pressing block 581 on the POGO crimping head precision limiting plate 58 to press the FPC of the LCD screen to prevent the product from tilting up, so as to avoid it being placed in place. Then, the POGO pressure head anti-static cover 52 is fastened. At this time, the POGO pressure head pressure spring block 59 on the bottom of the POGO pressure head anti-static cover 52 presses on the FPC of the LCD screen. The pressure of the POGO pressure head pressure spring block 59 can make the FPC of the LCD screen and the conductive cloth 56 evenly and fully contact to achieve the best conduction effect. Then, the operation panel 7 is rotated to make the lower surface of the operation panel 7 contact with the upper surface of the POGO pressure head anti-static cover 52, and then the LCD screen is lit up for testing through the cooperation of the signal generator.

[0072] Compared with the existing LCD liquid crystal display lighting test device, the utility model can avoid the crease damage to the FPC of the LCD screen during the operation process, can stably and accurately position the FPC of the LCD screen, and replace the existing probe by setting a lighting medium (i.e., conductive cloth), so the lighting rate is high, the conduction effect is better, the stability is strong, the maintenance time is short, the damage of the BTB connector is reduced, and the production efficiency is improved.

[0073] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The terms "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect, fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium, or internal connections between two elements. In the description of the present invention, the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly, and therefore cannot be understood as a limitation on the present invention.

[0074] At this point, those skilled in the art should recognize that, although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An LCD display lighting test device, comprising a carrying fixture box, characterized in that: Support plates are provided at opposite ends of the upper surface of the carrying jig box, an operation panel is rotatably connected between the support plates, and a probe fixing mechanism is rotatably connected to the operation panel; wherein a POGO crimping joint mechanism is provided below the operation panel, and the POGO crimping joint mechanism is supported by a POGO support adjustable bracket, and the support surface of the POGO support adjustable bracket for supporting the POGO crimping joint mechanism is an inclined surface, and the angle between the inclined surface and the upper surface of the carrying jig box is 40° to 85°.

2. The LCD display lighting test device according to claim 1, characterized in that: The jig box includes a jig box bottom plate and a jig box frame arranged on the jig box bottom plate, the jig box frame is used to support the support plate, the operation panel and the POGO support adjustable bracket, and a buffer fixing plate is provided at the end of one side of the jig box bottom plate, and at least two buffers are provided at both ends of the buffer fixing plate for buffering protection during the rotation process of the LCD screen.

3. The LCD display lighting test device according to claim 2, characterized in that: A jig box panel is fixedly connected to the top of the jig box frame, and the support plate is arranged on the jig box panel, wherein two triangular plates are arranged between the support plates, and an adsorption plate is arranged between the two triangular plates, and the adsorption plate is fixedly connected to the first surfaces of the two triangular plates, and the angle between the first surfaces of the two triangular plates and the jig box panel is 40° to 85°.

4. The LCD display lighting test device according to claim 3, characterized in that: The POGO support adjustable bracket includes two POGO pressure head support plates, the two POGO pressure head support plates are triangular structures, a POGO pressure head Y-axis adjustment plate is fixed between the two POGO pressure head support plates, the POGO pressure head Y-axis adjustment plate is fixed on the first surfaces of the two POGO pressure head support plates, and the angle between the first surfaces of the two POGO pressure head support plates and the fixture box panel is 40° to 85°; the first surfaces of the two triangular plates are arranged toward one end of the fixture box panel, and the first surfaces of the two POGO pressure head support plates are arranged toward the first surface of the fixture box panel. One end of the jig box panel is arranged opposite to the other end; wherein, a plurality of first limit holes are opened on the first surfaces of the two POGO pressure head support plates, and first POGO pressure head fixing holes are respectively arranged at both ends of the POGO pressure head Y-axis adjustment plate, and the first POGO pressure head fixing holes correspond to the first limit holes on the first surfaces of the two POGO pressure head support plates; wherein, a POGO pressure head X-axis adjustment plate is also arranged on the POGO pressure head Y-axis adjustment plate, and a plurality of fixing holes for fixing the POGO pressure head mechanism are arranged on the POGO pressure head X-axis adjustment plate.

5. The LCD display lighting test device according to claim 4, characterized in that: The POGO press head Y-axis adjustment plate is provided with a plurality of second limiting holes, and the POGO press head X-axis adjustment plate is provided with a second POGO press head fixing hole, and the second POGO press head fixing hole corresponds to the second limiting hole.

6. The LCD display lighting test device according to claim 5, characterized in that: The first POGO press head fixing hole and the second POGO press head fixing hole are both elongated holes.

7. The LCD display lighting test device according to claim 4, characterized in that: The POGO crimping head mechanism includes a POGO crimping head base, a lighting PCB board is arranged on the POGO crimping head base, a conductive cloth placement plate is fixedly connected to one side of the lighting PCB board, a conductive cloth is arranged on the conductive cloth placement plate, a POGO crimping head product placement limit plate is fixedly connected above the conductive cloth placement plate, the POGO crimping head product placement limit plate is spaced apart from the conductive cloth placement plate, a limit groove for placing the FPC of the liquid crystal display screen is arranged on the POGO crimping head product placement limit plate, and the limit groove is arranged corresponding to the conductive cloth, and an introduction groove is arranged at the bottom end of the limit groove.

8. The LCD display lighting test device according to claim 7, characterized in that: One end of the POGO press head base is rotatably connected to a POGO press head anti-static cover plate, the POGO press head anti-static cover plate is buckled with the other end of the POGO press head base, and the bottom surface of the POGO press head anti-static cover plate is fixedly connected to a POGO press head pressure spring block.

9. The LCD display lighting test device according to claim 7, characterized in that: A magnetic block is also provided in the POGO pressure head base, and the magnetic block is provided below the conductive cloth.

10. The LCD display lighting test device according to any one of claims 7 to 9, characterized in that: The POGO pressure head product placement limit plate is also fixedly connected to a POGO pressure head precision limit plate, and one end of the POGO pressure head precision limit plate is fixedly connected to an elastic pressure block to limit the FPC inserted into the limit groove.

11. The LCD display lighting test device according to claim 1, characterized in that: Two fixing blocks are arranged on the upper surface of one end of the operation panel close to the support plate, a rotating rod is connected between the two fixing blocks, and the probe fixing mechanism is fixedly connected to the rotating rod.

12. The LCD display lighting test device according to claim 3, characterized in that: The angle between the support surface of the POGO support adjustable bracket and the upper surface of the bearing fixture box is 45°.

13. The LCD display lighting test device according to claim 4, characterized in that: The angle between the first surface of the triangular plate and the panel of the jig box is 45°, and the angle between the first surface of the POGO pressure head support plate and the panel of the jig box is 45°.

14. The LCD display lighting test device according to claim 7, characterized in that: A signal generator is fixedly installed in the fixture box frame, and the signal generator is electrically connected to the lighting PCB board.

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