Display screen automatic testing device

Abstract

The invention discloses an automatic display screen testing device which comprises a box body, a detection station used for placing a to-be-tested display screen is arranged on the box body, and the to-be-tested display screen is electrically connected with a testing mainboard through a flexible circuit board; a detection device capable of moving in the horizontal direction and the vertical direction is arranged above the detection station, and the detection device is electrically connected with the test mainboard; the detection equipment is used for measuring display parameters of the display screen to be tested, the test mainboard is internally provided with a standard parameter library, the display parameters are compared with standard parameters, and a judgment result about whether the display screen to be tested reaches the standard or not is output. Compared with the prior art, the display parameters of electronic products such as mobile phones, tablet computers, smart watches, LED displays and the like can be detected, and whether the display parameters meet standards or not is judged.

Description

Technical Field

[0001] The invention relates to the field of mobile intelligent devices, and in particular to an automatic testing device for a display screen. Background Art

[0002] At present, mobile smart devices such as mobile phones, tablets, and smart watches are used more and more frequently, but the current automatic display test device can only measure the LCD related parameters of the display screens of the above mobile smart devices, and cannot determine whether the above display screens meet the standards. In addition, the position, size, model, etc. of the display screens of different mobile smart devices are different. When measuring the LCD related parameters of the display screens, different types of mobile smart devices need to be matched with different automatic display test devices for measurement, resulting in high cost for measuring the LCD related parameters of the display screens.

[0003] Therefore, how to design an automatic display screen testing device that can adapt to different mobile smart devices for measurement is a technical problem that the industry urgently needs to solve. Summary of the invention

[0004] Aiming at the problem in the prior art that an automatic display screen test device for LCD-related parameters of a display screen cannot measure different mobile smart devices, the present invention proposes an automatic display screen test device.

[0005] The technical solution of the present invention is to propose an automatic display screen test device, comprising a box 11, on which a detection station for placing a display screen 3 to be tested is arranged, and the display screen 3 to be tested is electrically connected to a test mainboard 10 through a flexible circuit board 5;

[0006] A testing device 7 that can move in horizontal and vertical directions is arranged above the testing station, and the testing device 7 is electrically connected to the testing mainboard 10;

[0007] The detection device 7 is used to measure the display parameters of the display screen 3 to be tested. The test mainboard 10 has a built-in standard parameter library to compare the display parameters with the standard parameters and output a determination result of whether the display screen 3 to be tested meets the standards.

[0008] Furthermore, a beam 1 is arranged above the box 11, and a first track 101 formed by an opening is arranged on the beam 1. A device beam 8 is also arranged on the side of the beam 1 facing the display screen 3 to be tested, and a second track 802 formed by an opening is arranged on the device beam 8.

[0009] The first track 101 and the second track 802 are perpendicular to each other, and the detection device 7 can move along the setting direction of the first track 101 and the second track 802 .

[0010] Furthermore, a first hook 801 is provided at the lower part of the equipment beam 8, and the first hook 801 is connected to the equipment beam 8 through a first connecting column;

[0011] The first connecting column passes through the opening of the first track 101, and the first hook 801 and the equipment beam 8 are distributed on both sides of the crossbeam 1;

[0012] A second hanging buckle 701 is provided on the detection device 7, and the second hanging buckle 701 is connected to the detection device 7 via a second connecting column;

[0013] The second connecting column passes through the opening of the second track 802, and the second hook 701 and the detection device 7 are distributed on both sides of the device beam 8;

[0014] The device beam 8 can move along the setting direction of the first track 101 through the first connecting column and drive the detection device 7 to move together. The detection device 7 can move along the setting direction of the second track 802 through the second connecting column.

[0015] Furthermore, it also includes a first nut 6 and a second nut 9 arranged on the box body 11, and the first nut 6 and the second nut 9 are used to fix the two sides of the test mainboard 10 connected to the box body 11 to the box body 11.

[0016] Furthermore, it also includes a switch button 4 arranged on the box body 11 , and the switch button 4 is electrically connected to the test mainboard 10 .

[0017] Furthermore, the display parameters include: color coordinates, brightness uniformity, brightness value, CT value, and Flick value.

[0018] Furthermore, the detection device 7 adopts Minolta CA-310 detection equipment.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] The present invention is provided with a detection device and a test mainboard, and the display parameters are measured by the detection device, and the display parameters measured are compared with the standard parameters by the test mainboard, so as to judge whether the tested display screen meets the standard. In addition, due to the setting of the first track and the second track, the detection device in the present invention can move in both horizontal and vertical directions, so that the detection device can adapt to different display screen models for measurement, thereby improving the versatility of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a structural schematic diagram of the automatic display screen testing device of the present invention at a first viewing angle;

[0023] Figure 2 It is a structural schematic diagram of the automatic display screen testing device of the present invention at a second viewing angle;

[0024] Figure 3 This is a working flow chart of the automatic display screen testing device of the present invention;

[0025] Among them, 1 is the beam, 101 is the first track;

[0026] 2 is a base crossbar;

[0027] 3 is the display screen to be tested;

[0028] 4 is the switch button;

[0029] 5 is a flexible circuit board;

[0030] 6 is a first nut;

[0031] 7 is a detection device, 701 is a second hook;

[0032] 8 is the equipment beam, 801 is the first hook, and 802 is the second track;

[0033] 9 is a second nut;

[0034] 10 is a test motherboard;

[0035] 11 is a box body. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0039] The existing automatic display screen test device can only measure the LCD related parameters of the display screen, but cannot determine whether the display screen meets the standards. At the same time, the current automatic display screen test device can only measure one type of display screen, and its versatility is poor. Based on the above problems, the design idea of ​​the present invention is that, first, the display parameters measured by the detection device are compared with the marked parameters stored in the test mainboard to determine whether the display screen to be tested is large or small, and secondly, through the design of the crossbeam, the equipment beam, the first track, and the second track, the detection device can move in both horizontal and vertical directions, so as to adapt to the display screens of different mobile smart devices.

[0040] Based on the above design ideas, the present invention proposes an automatic display screen testing device, see Figure 1 and Figure 2 , which comprises a box body 11, on which a detection station for placing a display screen 3 to be tested is arranged, and the display screen 3 to be tested is electrically connected to a test mainboard 10;

[0041] A movable testing device 7 is provided above the testing station, and the testing device 7 is electrically connected to the testing mainboard 10;

[0042] In the above design, the detection station is used to place the display screen 3 to be tested, and the display screen 3 to be tested is electrically connected to the test mainboard 10. On the one hand, it is used to power the display screen 3 to be tested to ensure that it can be started normally for the measurement of display parameters. On the other hand, it is used for the test mainboard 10 to obtain the model of the display screen 11 to be tested to determine its standard parameters.

[0043] Specifically, for different mobile smart devices, the size and model of the display screen are different, and the related LCD parameters are also different (the display parameters referred to above are also LCD parameters). Therefore, the detection device 7 is configured to be movable in the present invention to adapt to display screens of different models.

[0044] In addition, the electrical connection between the above-mentioned detection device 7 and the test mainboard 10 is used to transmit the display parameters detected by the detection device 7 to the test mainboard 10. The test mainboard 10 is used to compare the measured display parameters with the marked parameters to determine whether the display screen to be measured meets the standards.

[0045] Based on the above design, the present invention can achieve the beneficial effects as described above:

[0046] The present invention is provided with a detection device 7 and a test mainboard 10. The display parameters are measured by the detection device 7, and the measured display parameters are compared with standard parameters by the test mainboard 10, so as to determine whether the display screen 3 to be tested meets the standards.

[0047] In the present invention, in order to realize the movement of the above-mentioned detection device 7, a first track 101 and a second track 802 are correspondingly provided, see Figure 1 and Figure 2 The specific designs of the first track 101 and the second track 802 are as follows:

[0048] A beam 1 is arranged above the box 11, and a first track 101 formed by an opening is arranged on the beam 1. A device beam 8 is also arranged on the side of the beam 1 facing the display screen 3 to be tested, and a second track 802 formed by an opening is arranged on the device beam 8.

[0049] The first track 101 and the second track 802 are perpendicular to each other, and the detection device 7 can move along the setting direction of the first track 101 and the second track 802 .

[0050] The structural relationship between the first track 101 and the second track 802 and the crossbeam 1, the equipment beam 8, and the detection device 7 is as follows:

[0051] A first hook 801 is provided at the lower part of the equipment beam 8, and the first hook 801 is connected to the equipment beam 8 through a first connecting column;

[0052] The first connecting column passes through the opening of the first track 101, and the first hook 801 and the equipment beam 8 are distributed on both sides of the beam 1;

[0053] A second hanging buckle 701 is provided on the detection device 7, and the second hanging buckle 701 is connected to the detection device 7 via a second connecting column;

[0054] The second connecting column passes through the opening of the second track 802, and the second hook 701 and the detection device 7 are distributed on both sides of the device beam 8;

[0055] The device beam 8 can move along the setting direction of the first track 101 through the first connecting column and drive the detection device 7 to move together. The detection device 7 can move along the setting direction of the second track 802 through the second connecting column.

[0056] The specific movement principle is:

[0057] The first connecting column is located in the first track 101 and can move along the setting direction of the first track 101. At the same time, since the first connecting column is fixedly set on the equipment beam 8, when the first connecting column moves on the first track 101, it will drive the equipment beam 8 to move along the setting direction of the first track 101. In addition, since the detection device 7 is installed on the equipment beam 8 through the second hook 701, when the equipment beam 8 moves along the setting direction of the first track 101, the detection device 7 will also move along the setting direction of the first track 101, so that the detection device 7 can move in the horizontal direction through the above structure;

[0058] The second connecting column is arranged in the second track 802, and can move along the setting direction of the second track 802. At the same time, since the second connecting column is fixedly arranged on the detection device 7, when the second connecting column moves on the second track 802, it will drive the detection device 7 to move along the setting direction of the second track 802, so that the detection device 7 can move in the vertical direction through the above structure;

[0059] It can be seen from the above arrangement that the present invention realizes the movement of the detection device 7 in the horizontal and vertical directions through the above structure, that is, the beneficial effects as described above can be achieved:

[0060] In the present invention, the detection device 7 can move in both horizontal and vertical directions due to the arrangement of the first track 101 and the second track 802 , so that the detection device 7 can adapt to different display screen models for measurement, thereby improving the versatility of the detection device 7 .

[0061] Furthermore, the present invention further comprises a first nut 6 and a second nut 9 disposed on the box body 11, the first nut 6 and the second nut 9 being used to fix the two sides of the test mainboard 10 connected to the box body 11 to the box body 11;

[0062] Among them, in other embodiments of the present invention, a third nut and a fourth nut can be respectively arranged on both sides where the cross bar 1 is connected to the box body 11, so that the cross bar 1 can rotate along the connecting axis of the third nut and the fourth nut, thereby realizing the folding and contraction of the cross bar 1, reducing the volume, and facilitating carrying and placement.

[0063] Furthermore, the present invention also includes a switch button 4 disposed on the box 11, the switch button 4 is electrically connected to the test mainboard 10, and is mainly used to control the execution of the above-mentioned detection process;

[0064] In the present invention, the test mainboard 10 and the display screen 3 to be tested are electrically connected via a flexible circuit board 5 .

[0065] The flexible circuit board 5 is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as a substrate, referred to as a soft board or FPC, which has the characteristics of high wiring density, light weight and thin thickness.

[0066] Furthermore, the display parameters in the present invention include: color coordinates, brightness uniformity, brightness value, CT value, and Flick value.

[0067] Specifically, the color coordinates of the standard RGB picture displayed by the display screen 3 to be tested, the brightness uniformity of the white picture displayed by the display screen 3 to be tested, the brightness value of the Gamma picture displayed by the display screen 3 to be tested, and the CT value of the Crosstalk picture displayed by the display screen 3 to be tested;

[0068] Among them, the detection device 7 in the present invention adopts Minolta CA-310 detection equipment;

[0069] It can realize the measurement of the above-mentioned display parameters, that is, LCD parameters.

[0070] See also Figure 3 , which is the overall workflow diagram of the present invention, which first puts the display screen to be tested, that is, the display screen to be tested 3, and places it on the detection station;

[0071] The test mainboard 10 of the present invention is provided with a display screen test system, which can control the display screen to start by switching the switch button 4 after detecting that the display screen 3 to be tested is placed, and the display screen 3 to be tested starts the display program, starts to display the standard RGB picture, displays the standard Gamma picture, displays the standard Crosstalk picture, displays the standard flick picture, displays the standard afterimage picture, and then uses the Minolta CA-310 detection equipment to measure the color coordinates of the standard RGB picture, the brightness uniformity of the white picture, the brightness value of the Gamma picture, and the CT value of the Crosstalk picture.

[0072] The test mainboard 10 of the present invention is also provided with a detection device and a display program coordination system, which is used to measure the display screen switching of the APK and the measurement values ​​recorded by the detection device;

[0073] A measurement structure comprehensive judgment system is also provided in the test mainboard 10, which is mainly used to compare the measurement values ​​recorded by the above-mentioned measurement and detection equipment (that is, the display parameters checked in the previous text) with the standard parameters, so as to perform corresponding judgments, and the judgments performed include: judging whether the minimum and maximum brightness of the display meet the standards, judging whether the uniformity of the display screen meets the standards, judging whether the saturation of the display screen meets the standards, judging whether the flick of the display screen meets the standards, and judging whether the residual image of the display screen meets the standards;

[0074] After completing the above determination, a test report of the entire display screen 3 to be tested may be output.

[0075] The above is the overall workflow diagram of the present invention. Combined with the structural design of the foregoing, it can be seen that the present invention can at least achieve the following beneficial effects:

[0076] The present invention is provided with a detection device 7 and a test mainboard 10. The display parameters are measured by the detection device 7, and the display parameters measured are compared with the standard parameters by the test mainboard 10, so as to judge whether the display screen 3 to be tested meets the standard. In addition, the detection device 7 in the present invention can move in both horizontal and vertical directions due to the setting of the first track 101 and the second track 802, so that the detection device 7 can adapt to different display screen models for measurement, thereby improving the versatility of the detection device 7.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display screen automatic testing device, characterized in that: It comprises a box (11), on which a detection station for placing a display screen (3) to be tested is arranged, and the display screen (3) to be tested is electrically connected to a test mainboard (10) via a flexible circuit board (5); A testing device (7) that can move in horizontal and vertical directions is arranged above the testing station, and the testing device (7) is electrically connected to the testing mainboard (10); The detection device (7) is used to measure the display parameters of the display screen (3) to be tested, and the test mainboard (10) has a built-in standard parameter library, which compares the display parameters with the standard parameters and outputs a determination result of whether the display screen (3) to be tested meets the standards.

2. The automatic display screen testing device according to claim 1, characterized in that: A crossbeam (1) is arranged above the box (11), a first track (101) formed by an opening is arranged on the crossbeam (1), and a device beam (8) is also arranged on a side of the crossbeam (1) facing the display screen (3) to be tested, a second track (802) formed by an opening is arranged on the device beam (8); The first track (101) and the second track (802) are perpendicular to each other, and the detection device (7) can move along the setting direction of the first track (101) and the second track (802).

3. The automatic display screen testing device according to claim 2, characterized in that: A first hook (801) is provided at the lower part of the equipment beam (8), and the first hook (801) is connected to the equipment beam (8) via a first connecting column; The first connecting column passes through the opening of the first track (101), and the first hook (801) and the equipment beam (8) are distributed on both sides of the crossbeam (1); A second hanging buckle (701) is provided on the detection device (7), and the second hanging buckle (701) is connected to the detection device (7) via a second connecting column; The second connecting column passes through the opening of the second track (802), and the second hook (701) and the detection device (7) are distributed on both sides of the device beam (8); The device beam (8) can move along the setting direction of the first track (101) through the first connecting column and drive the detection device (7) to move together. The detection device (7) can move along the setting direction of the second track (802) through the second connecting column.

4. The automatic display screen testing device according to claim 1, characterized in that: It also comprises a first nut (6) and a second nut (9) arranged on the box body (11), wherein the first nut (6) and the second nut (9) are used to fix the two sides of the test main board (10) connected to the box body (11) to the box body (11).

5. The automatic display screen testing device according to claim 1, characterized in that: It also includes a switch button (4) arranged on the box (11), and the switch button (4) is electrically connected to the test main board (10).

6. The automatic display screen testing device according to claim 1, characterized in that: The display parameters include: color coordinates, brightness uniformity, brightness value, CT value, and Flick value.

7. The automatic display screen testing device according to claim 1, characterized in that: The detection device (7) adopts Minolta CA-310 detection device.

Images