Electronic display screen testing system and method

Abstract

The present application relates to the technical field of display screen testing, in particular to an electronic display screen testing system and method, the testing system comprising: a testing table for placing a screen to be tested, and making a male plug on a flexible circuit board of the screen to be tested in a first position; a female plug mounted to the testing table and electrically connected to a testing circuit, the female plug being provided with a slot, defining a depth direction of the female plug groove as Z direction, and defining an X-Y plane perpendicular to the Z direction. The present application discards the mode of plugging and unplugging the male and female plugs in the original testing scheme, and sets an electric connecting sheet between the male and female plugs, the electric connecting sheet having a plurality of conductive contacts in its thickness direction, when the male and female plugs are respectively pressed on both sides of the electric connecting sheet, the corresponding contacts are electrically connected, realizing the electrical connection of the male and female plugs, and through this mode, the plug damage caused by plugging and unplugging can be avoided, and the testing speed can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen testing, in particular to an electronic display screen testing system and method. BACKGROUND

[0002] A display screen module is mainly composed of a display screen body, an integrated circuit and a flexible circuit board, and is used for display of various intelligent terminals. Generally, the display screen module needs to be functionally tested before leaving the factory, such as lighting test, touch test, color gamut test, etc. The plug (male) on the flexible circuit board needs to be plugged into the test socket (female), and then the test socket is powered on to realize the electrical connection of the male and female plugs, and the display screen is tested.

[0003] At present, as shown in patent document 1 and patent document 2, the male and female plugs are inevitably plugged and unplugged, and the plugging and unplugging process is usually completed manually. When the male and female plugs are plugged and unplugged, the contacts of the male and female plugs are damaged, and the test speed is slow. In the environment where the use of electronic display screens is increasing, the current test method obviously cannot meet the demand for rapid testing.

[0004] Prior art documents:

[0005] Patent document 1: CN110070813A display screen testing jig

[0006] Patent document 2: CN108806565A display screen lighting test device and method SUMMARY

[0007] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures can be represented with a like numeral. For purposes of clarity, not every component can be called out in every drawing. There will now be described, by way of example, various aspects of the present application with reference to the accompanying drawings in which:

[0008] Figure 1 is a structural schematic diagram of the male and female plugs in the BTB connector in the prior art;

[0009] Figure 2 (a) in the prior art is a schematic diagram of the BTB connector in the unplugged state; Figure 2 (b) in the prior art is a schematic diagram of the BTB connector in the plugged state;

[0010] Figure 3 (a) in the prior art and Figure 3 (b) in the prior art is a schematic diagram of the connection process of the BTB connector; Figure 3 (c) is a structural schematic diagram of the connection state of the male and female plugs in the display screen testing structure shown in the present application;

[0011] Figure 4 is the structure diagram of the electronic display screen testing device when the display screen is tested according to the present application;

[0012] Figure 5 is the structure diagram of the electronic display screen testing device when the display screen is tested according to the present application;

[0013] Figure 6 is the sectional view of the electronic display screen testing device according to the present application;

[0014] Figure 7 is the structure diagram of the female plug positioning block in the electronic display screen testing device according to the present application;

[0015] Figure 8 is the structure diagram of the limiting groove according to the present application;

[0016] Figure 9 is the structure diagram of the male plug and the female plug in the limiting groove according to the present application;

[0017] Figure 10 is the diagram of the conductor distribution in the electrical connection component according to the present application;

[0018] Figure 11 is Figure 6 is the sectional view of the direction B-B' in

[0019] Figure 12 is Figure 6 is the sectional view of the direction A-A' in DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the present application, specific embodiments are described below with reference to the accompanying drawings.

[0021] As shown in the accompanying drawings, Figure 1 the male plug and the female plug are a kind of connector, specifically a kind of BTB connector, which is used to connect two PCBs of the connector to realize mechanical and electrical connection.

[0022] At present, the display screen and the mainboard of the electronic equipment such as mobile phone and tablet computer are connected by using the male plug and the female plug described above, the screen module includes a flexible circuit board with a male plug, and the mainboard is provided with a female plug, and the male plug and the female plug are connected and assembled to form a product.

[0023] In the display screen function test before the product is produced, the power-on and power-off of the electronic display screen are usually realized by using artificial plug-in connection mode, for example, Figure 2 (a) of Figure 2 (b) of Figure 3 (a),Figure 3 As shown in (b), the male and female connectors of the flexible circuit board are PCB lines of the same specification, the female connector 7 has a recessed slot (the depth direction of the female connector recess is defined as Z direction, and the X-Y plane is perpendicular to the Z direction), which is the same as the slot on the mobile phone mainboard connected to the male connector of the display screen, and a plurality of contacts are arranged in the recessed part. Further, the male connector includes a protruding part, and optionally, a plurality of metal contacts corresponding to the contacts in the recessed part are arranged on both sides of the protruding part, which are usually copper pins, or the protruding part is directly composed of metal pins.

[0024] When the copper pins on the male and female connectors are electrically connected, the connection of the male and female connectors is achieved, that is, the communication between the display screen and the driving circuit is achieved to test or use the display screen.

[0025] During the test process, due to uncontrollable human behavior, there is a risk of damage caused by plugging and unplugging (the protruding part of the male connector is inserted into the recessed part of the female connector, which is easy to cause wear of the female and male connector contacts or structural deformation), and the test speed is slow (the plugging and unplugging process needs pressing and pulling out actions, which makes the test process include steps 1: placing the display screen, step 2: inserting the male connector, step 3: pulling out the male connector, and step 4: taking out the display screen), since mechanical connection is not required during the test process, therefore, the utility model aims to simplify the test process and test scheme, and uses the electrically conductive sheet to couple the male and female connectors, avoids the plugging and unplugging action during the test electrical connection, and electrically connects in a fitted manner, as shown in (c), to improve the test speed and reduce the damage to the structure of the male and female connectors. Figure 3

[0026]

Electronic display screen test system

[0027] As shown in (b), the male and female connectors of the flexible circuit board are PCB lines of the same specification, the female connector 7 has a recessed slot (the depth direction of the female connector recess is defined as Z direction, and the X-Y plane is perpendicular to the Z direction), which is the same as the slot on the mobile phone mainboard connected to the male connector of the display screen, and a plurality of contacts are arranged in the recessed part. Further, the male connector includes a protruding part, and optionally, a plurality of metal contacts corresponding to the contacts in the recessed part are arranged on both sides of the protruding part, which are usually copper pins, or the protruding part is directly composed of metal pins. Figures 3-4 As shown in (b), the male and female connectors of the flexible circuit board are PCB lines of the same specification, the female connector 7 has a recessed slot (the depth direction of the female connector recess is defined as Z direction, and the X-Y plane is perpendicular to the Z direction), which is the same as the slot on the mobile phone mainboard connected to the male connector of the display screen, and a plurality of contacts are arranged in the recessed part. Further, the male connector includes a protruding part, and optionally, a plurality of metal contacts corresponding to the contacts in the recessed part are arranged on both sides of the protruding part, which are usually copper pins, or the protruding part is directly composed of metal pins.

[0028] As shown in (b), the male and female connectors of the flexible circuit board are PCB lines of the same specification, the female connector 7 has a recessed slot (the depth direction of the female connector recess is defined as Z direction, and the X-Y plane is perpendicular to the Z direction), which is the same as the slot on the mobile phone mainboard connected to the male connector of the display screen, and a plurality of contacts are arranged in the recessed part. Further, the male connector includes a protruding part, and optionally, a plurality of metal contacts corresponding to the contacts in the recessed part are arranged on both sides of the protruding part, which are usually copper pins, or the protruding part is directly composed of metal pins. Figures 3-4 As shown in (b), the male and female connectors of the flexible circuit board are PCB lines of the same specification, the female connector 7 has a recessed slot (the depth direction of the female connector recess is defined as Z direction, and the X-Y plane is perpendicular to the Z direction), which is the same as the slot on the mobile phone mainboard connected to the male connector of the display screen, and a plurality of contacts are arranged in the recessed part. Further, the male connector includes a protruding part, and optionally, a plurality of metal contacts corresponding to the contacts in the recessed part are arranged on both sides of the protruding part, which are usually copper pins, or the protruding part is directly composed of metal pins.

[0029] ​Therefore, the utility model discloses the electric connecting part 6 is arranged between female plug 7 and male plug to realize that male plug and female plug 7 do not need to be pulled and inserted, and the electric connection is completed in the mode of adhering contact corresponding contact point. Compared with the prior art, the testing mode is more time-saving, and steps 2 and 3 in the above are omitted, so that the problem of plug structure damage is avoided while saving time.

[0030] Further, on the basis that male plug and female plug do not need to be pulled and inserted to complete electric connection, the utility model hopes to make the testing process more simple and easy to operate, for example, after the display screen to be tested is placed on the testing table 1, the flexible circuit board hanging on the display screen is introduced into the female plug positioning block 3 from the male plug guide block 2 and is extruded by the linear driving part 5, so that the male plug and the female plug 7 are adhered to the two sides of the electric connecting sheet 6 (the first end face is defined as the electric connecting sheet 6 adhered to the female plug, and the opposite side is the second end face), electric connection is realized, and then the testing circuit is controlled to be turned on to test, and after testing, the tested display screen can be directly pulled out.

[0031] In order to realize the above-mentioned purpose, the testing connector of the utility model mainly includes the following parts:

[0032] The testing table 1 aims to provide support for the screen to be tested and accommodate other components.

[0033] In the optional embodiment, the testing table 1 is provided with a testing panel 11; a support platform for the screen to be tested is formed. And in order to facilitate the placement of the screen and the observation of the state of the screen, preferably, the included angle between the testing panel 11 and the support surface of the testing table 1 is 0-30 degrees.

[0034] Further, in order to prevent the screen from sliding off the testing panel 11, three clamps 12 are arranged on the testing panel 11, which limit the side edges and the bottom edge of the screen to be tested, and facilitate the placement of the screen to be tested.

[0035] Optionally, the clamp 12 is a rectangular block fixed to the testing panel 11 by a screw. It is easy to understand that a plurality of screw holes are arranged on the testing panel 11 along the width and length directions to change the installation position of the rectangular block and adapt to screens of different sizes.

[0036] In other embodiments, the clamp 12 can be other clamping components that limit the screen. Such as a clamp.

[0037] Therefore, the detection area 111 is formed on the inner side of the clamp 12 on the testing panel 11, that is, the placement and detection position of the screen to be tested.

[0038] Among them, the testing table 1 and the testing panel 11 are preferably engineering plastics. It has the advantages of easy processing and low cost.

[0039] For example,Figure 5 As shown, the test bench 1 further comprises a box-shaped structure arranged at the bottom of the test panel 11, which is formed by splicing five plate bodies through fasteners. In this way, it is convenient for disassembly, exposure of internal components, and maintenance and replacement.

[0040] The male plug guide block 2 is designed to guide the flexible circuit board 200 carried by the display screen 100 placed in place, so as to reduce the operation difficulty, and enable the male plug 300 on the flexible circuit board 200 to be directly moved to the connecting position corresponding to the female plug 7 after the display screen 100 is placed.

[0041] In combination Figure 6 As shown, the male plug guide block 2 is arranged at the central position of the test panel 11, and the male plug guide block 2 is provided with a guide channel 201 for the flexible circuit board 200 to pass through.

[0042] Further, the guide channel 201 is arranged to gradually narrow in width to be equal to the width of the flexible circuit board 200.

[0043] Optionally, according to different models of the flexible circuit board 200 carried by different display screens to be tested, the width and length of the guide channel 201 are also different, which can be determined according to the size of the flexible circuit board 200, but the guide channel 201 should meet the condition that the flexible circuit board 200 can be slid into the connecting position corresponding to the female plug 7, i.e. the first position, from the guide channel 201 without interference after the display screen to be tested is placed in the detection area 111.

[0044] The moving direction of the flexible circuit board 200 along the guide channel 201 is defined as the X direction.

[0045] The female plug positioning block 3 is designed to position the female plug 7, so that the female plug 7 is in a predetermined position, and the male plug 300 guided through the guide channel 201 is limited to the test position corresponding to the female plug 7, i.e. the first position.

[0046] Optionally, the female plug 7 is connected to a DB25 plug through the flexible circuit board, which is used to be plugged into a test circuit (not shown in the figure), and when the female plug 7 and the male plug 200 are electrically connected, the test circuit drives the display screen to perform function tests such as lighting and touch.

[0047] In combination Figures 6-8 As shown, the female plug positioning block 3 is fixed to the test panel 11, and the female plug positioning block 3 is provided with a limiting groove 301, wherein the limiting groove 301 is used to place the female plug 7, the electrically connecting piece 6 and the male plug 300.

[0048] A slot 302 is provided on the female plug positioning block 3 at the position corresponding to the limiting groove 301. The slot 302 is used to fix the female plug 7 to one side of the limiting groove 301. The shape of the slot 302 matches the shape of the female plug 7.

[0049] In a preferred embodiment, since the male plug 300 faces upward when the flexible circuit board 200 on the screen enters the guide channel 201 towards the top of the screen, the female plug 7 is positioned above the limiting groove 301 with the recess facing downward, and the electrical connection piece 6 is attached to the recess of the female plug 7.

[0050] In an optional embodiment, the limiting groove 301 also needs to position the flexible circuit board 200 that enters the limiting groove 301 to ensure that the positions of the male plug 300 and the female plug correspond.

[0051] Combination Figures 6-8 As shown, the limiting groove 301 has a second side in the X direction and a first side in the Z direction. The first side in the Z direction is used to position the female plug 7, and the second side in the X direction is used to position the flexible circuit board that enters the limiting groove 301, especially in the X direction.

[0052] Furthermore, the limiting groove 301 forms an open end on the first side in the X direction, so that after the flexible circuit board 200 enters the limiting groove 301 from the open end on the first side in the X direction, it is restricted by the second side in the X direction and has a clear positioning in the X direction.

[0053] Preferably, the limiting groove 301 is also provided with positioning surfaces on the first side and the second side in the Y direction to prevent the flexible circuit board 200 from swaying in the Y direction within the limiting groove 301.

[0054] Furthermore, in order to control the relative movement between the flexible circuit board 200 with the male plug 300 and the female plug 7, the limiting groove 301 forms an open end on the second side in the Z direction, so as to allow the transfer component to move the flexible circuit board 200 from a first position away from the female plug 7 to a second position that is in contact with the electrical connection piece 6.

[0055] Combination Figure 6 and Figure 9 As shown, the transfer component includes a linear drive component 5 and a movable block 4. The movable block 4 is disposed at the output end of the linear drive component 5 and can be driven to reciprocate along the Z direction, so that the male plug 300 is attached to / detached from the second end face of the electrical connection piece 6.

[0056] Optionally, the movable block 4 is connected to the open end formed on the second Z-direction side of the limiting groove 301.

[0057] Thus, the linear driving component 5 drives the movable block 4 to press the flexible circuit board 200, so that the male plug 300 approaches the female plug 7, and thus the male plug 300 and the female plug 7 are respectively attached to the two sides of the electric connecting sheet 6, and the electric connection is completed.

[0058] In optional embodiments, in combination with Figure 9 As shown, the movable block 4 and the limiting groove 301 form a test hole.

[0059] In order to ensure that the flexible circuit board 200 directly enters the test hole after sliding out of the guide channel 201, the outlet end of the guide channel 201 is open to the X-direction first side of the test hole. And the inlet end of the guide channel 201 is connected to the detection area 111.

[0060] In combination with Figures 11-12 As shown, preferably, the guide channel 201 includes a bottom surface, a top surface, and two side surfaces connecting the bottom surface and the top surface, and the top surface and the two side surfaces are arranged to gradually approach the bottom surface from the inlet end to the outlet end until the Y-Z cross section of the limiting groove 301.

[0061] The angle between the bottom surface of the guide channel 201 and the test panel 11 is 30-45 degrees. Because there is elasticity between the flexible circuit board 200 and the screen, the male plug 300 at the front end will cause the flexible circuit board 200 to bend at a certain angle, and this angle can better guide the flexible circuit board 200 into the guide channel 201.

[0062] Thus, after the screen to be tested is fixed to the detection area 111, the flexible circuit board 200 is guided by the inner wall of the guide channel 201 after passing through the guide channel 201 from the detection area 111 and enters the test hole to be positioned, the whole process is simple, the guidance is accurate, and the operation is easy.

[0063] When the display screen 100 to be tested is placed on the detection area 111 of the test panel 11, the flexible circuit board 200 carried by the display screen 100 naturally moves along the guide channel 201 to the limiting groove 301 due to natural sagging. And abuts against the Y-direction first side, the Y-direction second side, and the X-direction second side of the limiting groove 301, so that the positions of the male plug 300 and the female plug 7 on the flexible circuit board 200 correspond in the Z-direction. When the movable block 4 is driven by the linear driving component 5 to press the flexible circuit board 200, the male plug 300 is tightly attached to the electric connecting sheet 6, and the electric connection is performed through the conductive needle 61 and the female plug, and the test is performed.

[0064] Through the above, the male and female plugs do not need to be connected by plugging and unplugging, which can reduce the damage and deformation of the contact caused by plugging and unplugging, and the test speed is fast. At the same time, the above scheme is easy to operate, and even if it is operated by human, it is not easy to cause test failure due to misoperation.

[0065] The electric connecting sheet 6 is used to realize the non-plug electric connection between the male plug 300 and the female plug 7, and the electrically conductive pins 61 are arranged in a dense manner in the thickness direction and are insulated in the extending direction, so that the corresponding pins of the male plug 300 and the female plug 7 can be electrically connected through the electric connecting sheet 6.

[0066] In combination Figure 10 As shown in the optional embodiment, the electric connecting sheet 6 is arranged to include a plurality of electrically conductive pins 61 arranged in a matrix in the X-Y plane.

[0067] The electrically conductive pins 61 are arranged to be electrically conductive in the Z direction and are insulated in the X-Y plane direction. Thus, when the female plug 7 and the male plug 300 are attached to the upper and lower end surfaces of the electric connecting sheet 6 respectively, the electrically conductive pins 61 at the corresponding positions of the male and female plugs will complete the electric connection, so that the male and female plugs are electrically connected.

[0068] In the optional embodiment, the electric connecting sheet 6 includes an insulating portion 62, and the electrically conductive pins 61 are embedded in the insulating portion 62 and arranged in an array, so as to ensure that when the female plug 7 and the male plug 300 are in the corresponding positions, the corresponding pins are electrically connected through the electrically conductive pins 61.

[0069] The insulating portion 62 can be made of rubber, nylon or fiber, etc. The arrangement density of the electrically conductive pins 61 is determined by the type of the male and female plugs.

[0070] In the optional embodiment, the electric connecting sheet 6 includes an electrically conductive cloth.

[0071] In the optional embodiment, the movable block 4 is driven to move in the Z direction by the linear driving member 5, and the linear driving member 5 is fixedly connected to the test bench 1. Thus, the male plug 300 can be tightly attached to the electric connecting sheet 6 fixed on the female plug 7.

[0072] Preferably, the movable block 4 is driven to move in the Z direction and slightly deviates from the direction in which the flexible circuit board 200 enters by the linear driving member 5. Thus, when the movable block 4 presses the flexible circuit board 200, the flexible circuit board 200 can be promoted to reach the limit position at the same time. This can avoid the electric connection failure caused by the manual insertion not reaching the position or the elastic bending of the flexible circuit board 200.

[0073] Further, the thickness of the limiting groove 301 of the female plug positioning block 3 and the stroke of the linear driving member 5 are related to the pressing force of the male plug 300 attached to the electric connecting sheet 6. In the optional embodiment, the pressing force of the male plug 300 is controlled in a suitable pressure range by modifying the thickness of the limiting groove 301 and the stroke of the driving member. This can maintain stable electric connection and improve the service life of the electric connecting sheet 6.

[0074] In an alternative embodiment, the linear drive component 5 is fixed into the cavity 101 of the test bench 1 by a fine adjustment component, wherein the stroke of the linear drive component 5, i.e. the contact pressure between the male plug 300 and the electrical connection piece 6, can be controlled by adjusting the fine adjustment component to the optimal test result.

[0075] In an alternative embodiment, the linear drive component 5 comprises a pneumatic cylinder, the output end of which, i.e. the push rod 51, is connected to the movable block 4. A first control button 52 (not shown in the figure) for controlling the state of the pneumatic cylinder is provided on the test bench 1, so that the pneumatic cylinder is controlled to press or retract the movable block 4.

[0076] By manual control, the timing of pressing the male plug 300 can be easily controlled.

[0077] In an alternative embodiment, the process of placing the screen to be tested into the detection area 111 and the flexible circuit board 200 into the test hole from the guide channel 201 can be replaced by an automatic device, and compared with the prior art, since the insertion and removal directions are relatively simple and do not require accurate male-female plug connection, the control difficulty and cost of the automatic device can be reduced.

[0078] In an alternative embodiment, the linear drive component 5 can also be an electric telescopic rod or other driver capable of controlling the movable block 4 to approach or move away from the female plug 7.

[0079] Further, in the above-mentioned electronic display screen test process, step 1: the contact of the male plug and the electrical connection piece 6 is required, and then step 2: the electrical connection of the female plug and the test circuit is required. When step 1 is completed, the electronic display screen and the test circuit are electrically connected. Since the software needs to load test content, there is a delay time, therefore, the test content cannot be tested at this time, and the display screen itself may be considered to be faulty.

[0080] Therefore, the test circuit is connected to the female plug 7, and the test circuit is controlled to execute the test content by the second control button 71; the female plug 7 is in a relatively fixed position, waiting for the male plug of the flexible circuit board to be transferred to the corresponding position of the female plug 7. And the electrical connection of the male plug and the female plug 7 is realized through the electrical connection piece 6.

[0081] Further, the prompting element is arranged to be triggered to send a prompt signal after the predetermined time when the transfer component drives the male plug to the corresponding position. Optionally, the prompting element comprises an LED lamp or a buzzer, which is installed on the test bench 1.

[0082] In a specific embodiment, the transfer component comprises an electrically controlled driver and the movable block 4, and the movable block 4 is driven by the electrically controlled driver to transfer the male plug to the corresponding position of the female plug 7.

[0083] The electric control driver includes a cylinder, which is combined with Figure 13 As shown in the figure, the cylinder is controlled by a first control button 52, which is a valve for changing the air pressure at both ends of the cylinder to make the push rod 51 of the cylinder move up or down, and a prompt element is arranged in the driving circuit of the electric control driver and is set to send a prompt signal after the first control button 52 is pressed for a preset time, at which time the second control button is pressed to control the test circuit to execute the test content and perform the power-on test on the display screen.

[0084] In a specific embodiment, when the first control button 52 is pressed, the LED light is turned on after the electric control driver drives the movable block 4 to move the male plug to the corresponding position for one second, at which time the second control button is pressed to control the test circuit to execute the test content and perform the power-on test on the display screen.

[0085] In this way, through reasonable waiting time, false detection or repeated operation caused by too fast operation and unable to obtain test results is avoided, and the smoothness and test speed of the test are improved.

[0086]

Electronic display screen test method

[0087] The third aspect of the present application provides a technical solution, an electronic display screen test method, including the following steps:

[0088] Step 1, place the screen to be tested on the test table, and move the male plug 300 on the flexible circuit board 200 on the screen to be tested to the first position;

[0089] Combined with Figure 3 As shown in the figure, when the screen to be tested is placed, the screen is upward, the flexible circuit board 200 naturally droops forward, and the male plug 300 is upward, so in the preferred embodiment, the position of the female plug 7 is above the test hole, the slot is downward, the flexible circuit board 200 is guided into the gradually narrowed channel in the guide channel 201, and is guided into the test hole, and is positioned in the X-Y plane by the test hole, and reaches the first position.

[0090] Step 2, control the transfer component to move the male plug 300 on the flexible circuit board 200 to the second position, and the male plug 300 is attached to the second end surface of the electrically connecting sheet, so that the male plug 300 and the female plug are electrically connected;

[0091] The movable block 4 is driven by the linear driving component 5 to move along the Z direction, so that the male plug 300 is attached to the second end surface of the electrically connecting sheet 6, and reaches the second position, at which time the conductive needle 61 at the corresponding position of the male and female plugs will complete the electrical connection, so that the male and female plugs are electrically connected.

[0092] In the process of pressing, generally, the driving direction of the linear driving part 5 is Z direction, so as to press the male plug 300 to one side of the electric connecting sheet 6, preferably, in order to avoid that the male plug 300 is not in place or is not accurately in place, the driving direction of the linear driving part 5 is Z direction which is deviated from the entering direction of the flexible circuit board 100, when the first pressing is not in place, the second pressing can be in place.

[0093] In actual use, the first success rate is 97%, and the second success rate is 100%.

[0094] Further, the linear driving part 5 moves a predetermined stroke, so as to keep the pressure between the male plug 300 and the electric connecting sheet 6 in a preset range. For example, the distance between the movable block 4 and the electric connecting sheet 6 is 10 mm, the stroke of the movable block 4 is 8.5 mm, and the thickness of the male plug 300 is 1.5 mm, so as to ensure that the male plug 300 is not deformed by the electric connecting sheet 6 each time.

[0095] Step 3, turn on the test circuit, and perform a function test on the screen to be tested connected with the flexible circuit board;

[0096] Optionally, the test table 1 is provided with a second control button (not shown in the figure) for controlling the on-off of the test circuit. The second control button is used to control when the test is performed. Since the on-off of the circuit is related to the software, in order to improve the test speed, the second control button is allowed to be pressed after the first control button is pressed for a predetermined time, so that the software is in place, and then the test circuit is turned on.

[0097] Step 4, when the function test program ends, the control transfer part moves the male plug 300 to the first position, and the screen on the test table is removed, and the test is completed.

[0098] After the function test program ends, the linear driving part 5 is reset, and the screen on the test table is removed, and the flexible circuit board 200 directly slides out of the guide channel 201.

[0099] In combination with the above embodiment, the present application discards the original test scheme using the male and female plug plug-in mode, and sets the electric connecting sheet between the male plug and the female plug. The electric connecting sheet has a plurality of conductive contacts in the thickness direction, and is insulated in the expansion direction. When the male plug and the female plug are pressed on both sides of the electric connecting sheet, the corresponding contacts are electrically connected, the electric connection of the male and female plugs is realized, and the plug damage caused by the plug-in plug can be avoided, and the test speed can be effectively improved.

[0100] The application sets the female plug positioning block, which can position the female plug and the male plug. When the flexible circuit board is put along the guide channel, the male plug on the flexible circuit board reaches the predetermined position, and the accurate positioning is automatically performed, so that the electrical connection precision is achieved. Compared with the traditional plug-in and plug-out mode, the requirement for precision is lower, the operation difficulty is lower, and the automation is more beneficial to be realized, so as to meet the rapid development of the current electronic display screen test application.

[0101] Although the present application has been disclosed in the above preferred embodiments, it is not intended to limit the present application. Those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. An electronic display screen testing system, characterized by, The application relates to an electronic display screen testing system, which comprises the following: a testing table for placing a display screen to be tested and making a male plug on a flexible circuit board of the display screen to be tested in a first position; a female plug installed on the testing table and electrically connected to a testing circuit, the female plug being provided with a slot, the depth direction of the slot defining a Z direction, and an X-Y plane being perpendicular to the Z direction; an electrically connecting piece connected to the surface of the side of the slot of the female plug and kept in a plane state, the first end surface of the electrically connecting piece being defined as the surface abutting the female plug, and the second end surface being defined as the opposite surface; a shifting component installed on the testing table and used for shifting the flexible circuit board; wherein the shifting component is arranged to drive the male plug to move from the first position to a second position abutting the second end surface of the electrically connecting piece, so that the female plug and the male plug are respectively in the corresponding positions of the first end surface and the second end surface of the electrically connecting piece, and the electric connection between the female plug and the male plug is realized; the testing table is provided with a female plug positioning block for fixing the female plug, the female plug positioning block is provided with a limiting slot, the female plug is fixed in the limiting slot, and the limiting slot is provided with a limiting surface perpendicular to the X direction, so that the flexible circuit board stops at the first position after passing through a guide channel; the shifting component comprises a linear driving component and a movable block, the movable block is arranged at the output end of the linear driving component and can be driven to reciprocally move along the Z direction, so that the male plug abuts / leaves the second end surface of the electrically connecting piece.

2. The electronic display screen testing system of claim 1, wherein, the testing table is provided with a testing panel, the testing panel is provided with a clamp for positioning the display screen to be tested, and a detection area is formed on the inner side of the clamp, so that the display screen to be tested is in the detection area.

3. The electronic display screen testing system of claim 2, wherein, the testing panel is provided with a guide channel, when the display screen to be tested is placed in the detection area of the testing panel, the flexible circuit board can move along the guide channel to the first position, and the moving direction of the flexible circuit board along the guide channel is defined as an X direction.

4. The electronic display screen testing system of claim 3, wherein, the guide channel is arranged to gradually narrow the width from the insertion direction of the flexible circuit board to the width of the flexible circuit board.

5. The electronic display screen testing system of claim 1, wherein, when the flexible circuit board is in the first position, the male plug is in the direction of the slot of the female plug.

6. The electronic display screen testing system of claim 1, wherein, when the flexible circuit board is in the first position, the positions of the male plug and the female plug correspond in the X-Y plane.

7. The electronic display screen testing system of claim 6, wherein, the shifting component is arranged to move along the Z direction, so that the male plug moves from the first position to the second position along the Z direction.

8. The electronic display screen testing system of any of claims 1-7, wherein, the electrically connecting piece is arranged to comprise a plurality of conductive pins distributed in a matrix in the X-Y plane, so that when the female plug and the male plug are respectively in the corresponding positions of the first end surface and the second end surface of the electrically connecting piece, the corresponding contacts of the female plug and the male plug are electrically connected.

9. A method of testing an electronic display screen, characterized by, The electronic display screen testing system of claim 1 comprises the following steps: step 1, placing the display screen to be tested on the testing table, so that the male plug on the flexible circuit board of the display screen to be tested moves to the first position; step 2, operating the shifting component, so that the male plug on the flexible circuit board moves to the second position, the male plug abuts the second end surface of the electrically connecting piece, and the electric connection between the male plug and the female plug is realized; step 3, turning on the testing circuit, and testing the display screen to be tested connected with the flexible circuit board. Step 4, after the function test program is finished, the control transfer component moves the male plug to the first position, removes the screen on the test table, and completes the test.

10. The method of claim 9, wherein, In step 1, the screen to be tested is placed on the test table detection area of the test panel, and the flexible circuit board is guided to move to the first position by the guide channel on the test panel.

11. The method of claim 9, wherein, In step 2, the transfer component moves a predetermined stroke to keep the pressure between the male plug and the electrical connecting piece within a predetermined range.

12. The method of claim 9, wherein, In step 3, after the transfer component is operated to move the male plug to the second position for a set time, the test circuit allows to be connected to the female plug.

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