Special LCD (Liquid Crystal Display) lattice screen test board device

Abstract

The utility model belongs to the technical field of liquid crystal screen testing, and particularly relates to a special LCD liquid crystal lattice screen testing board device which comprises a board body and further comprises an XY-axis motion platform fixedly connected to the upper end of the board body. The test groove is formed in the plate body and is used for accommodating a to-be-tested workpiece; the point contact testing mechanism is fixedly connected to the X-axis moving end of the X-axis and Y-axis moving platform and is used for carrying out point contact on the to-be-tested workpiece along with axial movement of the X-axis and Y-axis moving platform; the positioning mechanism is connected to the upper end of the plate body and is used for clamping and positioning the to-be-tested workpiece in the test groove; the signal interface is fixedly connected to the upper end of the plate body and used for connecting a to-be-tested workpiece signal line; according to the application, the point contact test mechanism is arranged, the point contact test mechanism can be driven by the XY-axis motion platform to move in the XY axial direction, when the point contact test mechanism is in contact with the liquid crystal lattice screen, the touch of a user can be simulated, and meanwhile, the point contact test mechanism slides in the XY axial direction on the liquid crystal lattice screen, so that the sensitivity and the accuracy of the touch point of the liquid crystal lattice screen are tested.

Description

Technical Field

[0001] The present application relates to the technical field of liquid crystal screen testing, and in particular to a special LCD dot matrix screen testing board device. Background Art

[0002] As the market demand for LCD screens increases, customers pay more attention to product quality. Various specifications and models of LCD screens emerge in the market, and factory testing becomes an indispensable link.

[0003] The existing LCD dot matrix screen device can only test the ordinary segment code screen, but cannot test the COG module type LCD dot matrix screen, and the testing limitation is large.

[0004] The existing patent (Announcement No.: CN217932332U) discloses a special LCD dot matrix screen test board device, including a bottom cover, an upper cover, a hinge, a lock, a square groove, a guide rod, a bearing, a power socket, a threading hole, a spring probe, a telescopic handle, a bakelite board and other structures. By placing the LCD screen in the square groove of the test frame blank, the spring probe is in contact with the pin of the screen. When the screen displays a pattern, check whether the pattern display is normal. Through this test tooling, products with abnormal functions can be screened out;

[0005] Although the existing patents can realize the test of image display of LCD dot matrix screen, image test is only one type of LCD dot matrix screen test. The LCD dot matrix screen also needs to be tested. The touch test can simulate user touch and verify the accuracy and sensitivity of the touch point. The existing patents cannot realize the touch test of the LCD dot matrix screen. Utility Model Content

[0006] The purpose of this application is to provide a special LCD dot matrix screen test board device to solve the technical problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a dedicated LCD dot matrix screen test board device, comprising a board body, and also comprising an XY axis motion platform fixedly connected to the upper end of the board body;

[0008] A test slot is provided inside the plate body to accommodate a workpiece to be tested;

[0009] A touch test mechanism is fixedly connected to the X-axis moving end of the XY-axis motion platform and is used to follow the axial movement of the XY-axis motion platform to touch the workpiece to be tested;

[0010] A positioning mechanism, connected to the upper end of the plate body, to clamp and position the workpiece to be tested in the test slot;

[0011] The signal interface is fixed on the upper end of the board and is used to connect the signal line of the workpiece to be tested.

[0012] In one embodiment, the point touch test mechanism includes a mounting plate fixedly connected to one side of the X-axis movable end, two fixed seats symmetrically fixed to one side of the mounting plate, a screw rotatably connected between the two fixed seats, a motor fixed to one side of the upper fixed seat and the output shaft fixed to one end of the screw, a slide screwed to the outside of the screw, a disk body rotatably connected to one side of the slide, a box body fixed to one side of the disk body, a point contact fixed to the lower end of the box body, a screw hole one opened in the disk body and the slide, and a bolt one screwed in the screw hole one.

[0013] In one embodiment, a mounting groove is formed at one end of the box body away from the point contact, and an infrared thermometer is clamped in the mounting groove.

[0014] In one embodiment, the positioning mechanism includes two guide rails symmetrically fixed to the upper end of the plate body, two slide seats slidably connected to the two guide rails, two screw rods threaded in the two slide seats, two rubber pressure plates rotatably connected to one side of the two screw rods, a guide rod fixed to one side of the rubber pressure plate and movably inserted in the slide seat, two screw holes opened in the slide seat and the guide rails, and two bolts threaded in the two screw holes.

[0015] In one embodiment, a humidifier is fixedly connected to the upper end of the plate body, a connector is provided on one side of each of the two rubber pressure plates, and an output port connected to the connector is opened inside the two rubber pressure plates, the output end of the humidifier is connected to the connector through a pipe, and a fan is installed inside the output port.

[0016] In one embodiment, a heating plate is fixedly connected in the test slot.

[0017] In one embodiment, a switch and a control panel are further provided on one side of the board body, and the control panel is linearly connected to the signal interface, the electric heating plate, the humidifier, the XY axis motion platform, and the touch test mechanism.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] 1) The present application is provided with a touch test mechanism, which can drive the touch test mechanism to move in the XY axis through an XY axis motion platform. When the touch test mechanism contacts the liquid crystal dot matrix screen, it can simulate user touch and perform XY axis sliding on the liquid crystal dot matrix screen, thereby realizing the test of the sensitivity and accuracy of the touch points of the liquid crystal dot matrix screen.

[0020] 2) The present application is provided with an electric heating plate and a humidifier to provide the temperature and humidity required for the LCD dot matrix screen test, thereby simulating the working environment of the LCD dot matrix screen when in use. By performing touch tests on the LCD dot matrix screen under different temperatures and humidity conditions, the actual usage scenarios can be better simulated to ensure the performance and stability of the device in various environments. The tolerance of the touch screen in extreme or changing environments can be evaluated to ensure that it can work normally in various situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the touch test organization for this application;

[0023] Figure 3 This is a schematic diagram of the electric heating plate structure of this application.

[0024] In the figure: 1. plate; 2. XY axis motion platform; 3. touch test mechanism; 31. mounting plate; 32. fixing seat; 33. motor; 34. screw rod; 35. slide table; 36. disk body; 37. box body; 371. point contact; 372. infrared thermometer; 38. screw hole one; 39. bolt one; 4. positioning mechanism; 41. guide rail; 42. slide seat; 43. screw hole two; 44. bolt two; 45. screw rod; 46. guide rod; 47. rubber pressure plate; 5. test slot; 6. control board; 7. signal interface; 8. switch; 9. humidifier; 10. pipeline; 11. joint; 12. output port; 13. electric heating plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0027] Example:

[0028] See also Figure 1-3, the present application provides a technical solution: a dedicated LCD liquid crystal dot matrix screen test board device, including a board body 1, and also including an XY axis motion platform 2, which is fixedly connected to the upper end of the board body 1;

[0029] A test slot 5 is provided inside the plate body 1 to accommodate a workpiece to be tested;

[0030] The touch test mechanism 3 is fixedly connected to the X-axis moving end of the XY-axis motion platform 2 and is used to follow the axial movement of the XY-axis motion platform 2 to touch the workpiece to be tested;

[0031] The positioning mechanism 4 is connected to the upper end of the plate body 1 to clamp and position the workpiece to be tested in the test slot 5;

[0032] The signal interface 7 is fixedly connected to the upper end of the board body 1 and is used for connecting the signal line of the workpiece to be tested.

[0033] The LCD dot matrix screen to be tested is placed in the test slot 5, and the signal line of the LCD dot matrix screen is inserted into the signal interface 7, so that the LCD dot matrix screen is powered on and receives the test signal at the same time, and the LCD screen displays the test pattern. The pattern display of the LCD dot matrix screen is observed by naked eyes to see whether it is normal and whether there are bad pixels. At the same time, the LCD dot matrix screen is fixed in the test slot 5 by the positioning mechanism 4, and then the XY axis motion platform 2 is controlled to move, and the touch test mechanism 3 is moved to the top of the LCD dot matrix screen. The touch test mechanism 3 works and contacts with the LCD dot matrix screen. At the same time, the XY axis motion platform 2 drives the touch test mechanism 3 to move in the XY axis direction, which can simulate user touch and slide in the XY axis direction on the LCD dot matrix screen, thereby realizing the test of the sensitivity and accuracy of the touch points of the LCD dot matrix screen.

[0034] See also Figure 2 In this embodiment, the touch test mechanism 3 includes a mounting plate 31 fixed to one side of the X-axis moving end, two fixed seats 32 symmetrically fixed to one side of the mounting plate 31, a screw 34 rotatably connected between the two fixed seats 32, a motor 33 fixed to one side of the upper fixed seat 32 and having an output shaft fixed to one end of the screw 34, a slide 35 screwed to the outside of the screw 34, a disk 36 rotatably connected to one side of the slide 35, a box 37 fixed to one side of the disk 36, a point contact 371 fixed to the lower end of the box 37, a screw hole 38 provided in the disk 36 and the slide 35, and a bolt 39 screwed into the screw hole 38. The box 37 is provided with a mounting groove at one end away from the point contact 371, and an infrared thermometer 372 is clamped in the mounting groove.

[0035] By adopting the above scheme, the motor 33 can drive the screw rod 34 to rotate when working, and the rotation of the screw rod 34 can drive the slide 35 to move, thereby controlling the lifting and lowering of the disk 36 and the box body 37. When the box body 37 descends, the point contact 371 at the bottom of the box body 37 can contact the liquid crystal dot matrix screen in the test slot 5 to simulate user touch. When it is necessary to detect the working temperature of the liquid crystal dot matrix screen, the bolt 39 is unscrewed from the screw hole 38, and then the disk 36 is rotated 180°, so that the position of the infrared thermometer 372 and the point contact 371 are swapped, and the non-contact detection of the working temperature of the liquid crystal dot matrix screen is realized through the infrared thermometer 372.

[0036] See also Figure 1 In this embodiment, the positioning mechanism 4 includes two guide rails 41 symmetrically fixed to the upper end of the plate body 1, two slide seats 42 slidably connected to the two guide rails 41, two screw rods 45 screwed in the two slide seats 42, two rubber pressure plates 47 rotatably connected to one side of the two screw rods 45, a guide rod 46 fixed to one side of the rubber pressure plate 47 and movably inserted in the slide seat 42, two screw holes 43 opened in the slide seat 42 and the guide rails 41, and two bolts 44 screwed in the two screw holes 43.

[0037] By adopting the above solution, the slide 42 can slide on the guide rail 41, and the distance between the two slides 42 can be flexibly adjusted according to the size of the LCD screen. By rotating the screw 45, the rubber pressure plate 47 can be raised or lowered, and the pressure can be adjusted more accurately to avoid crushing the LCD screen. At the same time, the rubber pressure plate 47 can also reduce the impact of static electricity on the screen.

[0038] See also Figure 1 and Figure 3 In this embodiment, a humidifier 9 is fixedly connected to the upper end of the plate body 1, a connector 11 is provided on one side of the two rubber pressing plates 47, and an output port 12 connected to the connector 11 is provided inside the two rubber pressing plates 47, the output end of the humidifier 9 is connected to the connector 11 through a pipe 10, and a fan is installed inside the output port 12. An electric heating plate 13 is fixedly connected to the test slot 5.

[0039] By adopting the above scheme, the water mist generated by the humidifier 9 enters the pipe 10, and enters the output port 12 from the connector 11 through the pipe 10. The fan in the output port 12 blows the water mist into the test slot 5, simulating the use of the LCD dot matrix screen in a humid environment. At the same time, the electric heating plate 13 can generate heat, and can adjust the working environment temperature of the LCD dot matrix screen, simulating the LCD screen to work at different temperatures. By performing a touch test on the LCD dot matrix screen under different temperatures and different humidities, the actual use scenario can be better simulated to ensure the performance and stability of the device in various environments. The tolerance of the touch screen in extreme or changing environments can be evaluated to ensure that it can work normally under various conditions.

[0040] A switch 8 and a control board 6 are also provided on one side of the board body 1, and the control board 6 is linearly connected to the signal interface 7, the electric heating plate 13, the humidifier 9, the XY axis motion platform 2, and the touch test mechanism 3. The control board 6 is a circuit board with an integrated processor. Commonly used control methods are not repeated here.

[0041] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0042] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dedicated LCD dot matrix screen test board device, comprising a board body (1), characterized in that: It also includes an XY-axis motion platform (2) fixedly connected to the upper end of the plate body (1); A test slot (5) is provided inside the plate body (1) to accommodate a workpiece to be tested; A touch test mechanism (3) is fixedly connected to the X-axis moving end of the XY-axis motion platform (2) and is used to follow the axial movement of the XY-axis motion platform (2) to touch the workpiece to be tested; A positioning mechanism (4) connected to the upper end of the plate body (1) for clamping and positioning the workpiece to be tested in the test slot (5); A signal interface (7) fixedly connected to the upper end of the plate body (1) and used for connecting a signal line of a workpiece to be tested; The point contact test mechanism (3) comprises a mounting plate (31) fixedly connected to one side of the X-axis moving end, two fixed seats (32) symmetrically fixedly connected to one side of the mounting plate (31), a screw (34) rotatably connected between the two fixed seats (32), a motor (33) fixedly connected to one side of the upper fixed seat (32) and having an output shaft fixedly connected to one end of the screw (34), a slide (35) screwed to the outside of the screw (34), a disk (36) rotatably connected to one side of the slide (35), a box (37) fixedly connected to one side of the disk (36), a point contact (371) fixedly connected to the lower end of the box (37), a screw hole (38) provided in the disk (36) and the slide (35), and a bolt (39) screwed into the screw hole (38).

2. The dedicated LCD dot matrix screen test board device according to claim 1, characterized in that: An installation groove is provided at one end of the box body (37) away from the point contact (371), and an infrared thermometer (372) is clamped in the installation groove.

3. A dedicated LCD dot matrix screen test board device according to any one of claims 1 or 2, characterized in that: The positioning mechanism (4) comprises two guide rails (41) symmetrically fixed to the upper end of the plate body (1), two slide seats (42) slidably connected to the two guide rails (41), two screw rods (45) screwed into the two slide seats (42), two rubber pressure plates (47) rotatably connected to one side of the two screw rods (45), a guide rod (46) fixed to one side of the rubber pressure plate (47) and movably inserted into the slide seat (42), two screw holes (43) provided in the slide seat (42) and the guide rails (41), and two bolts (44) screwed into the two screw holes (43).

4. The dedicated LCD dot matrix screen test board device according to claim 3, characterized in that: A humidifier (9) is also fixedly connected to the upper end of the plate body (1); a connector (11) is provided on one side of each of the two rubber pressure plates (47); and an output port (12) connected to the connector (11) is provided inside the two rubber pressure plates (47); the output end of the humidifier (9) is connected to the connector (11) via a pipe (10); and a fan is installed inside the output port (12).

5. The dedicated LCD dot matrix screen test board device according to claim 4, characterized in that: An electric heating plate (13) is fixedly connected in the test slot (5).

6. The dedicated LCD dot matrix screen test board device according to claim 5, characterized in that: A switch (8) and a control panel (6) are also provided on one side of the plate body (1), and the control panel (6) is linearly connected to the signal interface (7), the electric heating plate (13), the humidifier (9), the XY axis motion platform (2), and the touch test mechanism (3).

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