Display screen automatic testing device

Abstract

The utility model discloses an automatic testing device for a display screen, which comprises a box body, a detection station for placing the display screen to be tested is arranged on the box body, and the display screen to be tested 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 device can detect display parameters of electronic products such as mobile phones, tablet personal computers, smart watches, LED displays and the like, and judges whether the display parameters meet standards or not.

Description

Technical Field

[0001] This utility model relates to the field of mobile intelligent devices, and in particular to an automatic testing device for display screens. Background Technology

[0002] Currently, mobile smart devices such as mobile phones, tablets, and smartwatches are being used more and more frequently. However, current automatic display testing devices can only measure the LCD-related parameters of the displays of these mobile smart devices, and cannot determine whether the displays meet the standards. Moreover, the position, size, and model of the displays are different for different mobile smart devices. When measuring the LCD-related parameters of the displays, different automatic display testing devices need to be matched for different types of mobile smart devices, resulting in high measurement costs for the LCD-related parameters of the displays.

[0003] Therefore, how to design an automatic testing device for displays that can be adapted to different mobile smart devices for measurement is a technical problem that the industry urgently needs to solve. Utility Model Content

[0004] To address the problem that existing automatic testing devices for LCD-related parameters cannot measure different mobile smart devices, this invention proposes an automatic testing device for LCD displays.

[0005] The technical solution of this utility model is to propose an automatic testing device for a display screen, including a housing 11. A testing station for placing a display screen 3 to be tested is provided on the housing 11. The display screen 3 to be tested is electrically connected to a test motherboard 10 through a flexible circuit board 5.

[0006] A testing device 7 that can move in both horizontal and vertical directions is provided above the testing station. The testing device 7 is electrically connected to the test motherboard 10.

[0007] The testing device 7 is used to measure the display parameters of the display screen 3 under test. The test motherboard 10 has a built-in standard parameter library, which compares the display parameters with the standard parameters and outputs the judgment result of whether the display screen 3 under test meets the standard.

[0008] Furthermore, a crossbeam 1 is provided above the housing 11, and a first track 101 formed by an opening is provided on the crossbeam 1. A device beam 8 is also provided on the side of the crossbeam 1 facing the display screen 3 to be tested, and a second track 802 formed by an opening is provided 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 hook 701 is provided on the detection device 7, and the second hook 701 is connected to the detection device 7 through a second connecting post;

[0013] The second connecting post 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 equipment beam 8;

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

[0015] Furthermore, it also includes a first nut 6 and a second nut 9 disposed on the housing 11, the first nut 6 and the second nut 9 being used to fix the two sides of the test motherboard 10 that are connected to the housing 11 to the housing 11.

[0016] Furthermore, it also includes a switching button 4 disposed on the housing 11, the switching button 4 being electrically connected to the test motherboard 10.

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

[0018] Furthermore, the testing device 7 is a Minolta CA-310 testing device.

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

[0020] This invention includes a testing device and a test motherboard. The testing device measures the display parameters, and the test motherboard compares the measured parameters with standard parameters to determine whether the tested display screen meets the standards. Furthermore, the testing device in this invention, due to the arrangement of the first and second tracks, can move in both horizontal and vertical directions, thus enabling it to adapt to different display screen models and improving its versatility. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of the automatic display screen testing device of this utility model from a first-view perspective;

[0023] Figure 2 This is a schematic diagram of the automatic display screen testing device of this utility model from a second perspective;

[0024] Figure 3 This is a flowchart illustrating the workflow of the automatic testing device for the display screen of this utility model.

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

[0026] 2 is the base crossbar;

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

[0028] 4 is the toggle button;

[0029] 5 represents a flexible circuit board;

[0030] 6 is the first nut;

[0031] 7 represents the testing equipment, and 701 represents the second hook.

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

[0033] 9 is the second nut;

[0034] 10 is the test motherboard;

[0035] 11 is the box. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0039] Current automatic display testing devices can only measure LCD-related parameters of the display screen, but cannot determine whether the display screen meets the standards. Furthermore, these devices can only measure one type of display screen, resulting in poor versatility. Based on these problems, the design concept of this utility model is as follows: First, the display parameters measured by the testing equipment are compared with the labeled parameters stored on the test motherboard to determine whether the display screen under test meets the standards. Second, the design of the crossbeam, equipment beam, first track, and second track allows the testing equipment to move in both horizontal and vertical directions, thus adapting to the display screens of different mobile smart devices.

[0040] Based on the above design concept, this utility model proposes an automatic display screen testing device. Please refer to [link / reference]. Figure 1 and Figure 2 It includes a housing 11, on which a testing station is provided for placing the display screen 3 to be tested, and the display screen 3 to be tested is electrically connected to the test motherboard 10.

[0041] A movable testing device 7 is installed above the testing station, and the testing device 7 is electrically connected to the test motherboard 10;

[0042] In the above design, the testing station is used to place the display screen 3 to be tested and electrically connect the display screen 3 to the test motherboard 10. One function is to provide power to the display screen 3 to ensure that it can start normally for the measurement of display parameters. The other function is for the test motherboard 10 to obtain the model of the display screen 11 to determine its standard parameters.

[0043] Specifically, different mobile smart devices have different screen sizes, models, and related LCD parameters (the display parameters mentioned above are also LCD parameters). Therefore, in this utility model, the detection device 7 is set to be movable to adapt to different screen models.

[0044] In addition, the electrical connection between the aforementioned testing device 7 and the test motherboard 10 is used to transmit the display parameters detected by the testing device 7 to the test motherboard 10. The test motherboard 10 is used to compare the measured display parameters with the labeled parameters to determine whether the display screen to be measured meets the standard.

[0045] Based on the above design, this utility model can achieve the beneficial effects described above:

[0046] This utility model is equipped with a testing device 7 and a test motherboard 10. The testing device 7 measures the display parameters, and the test motherboard 10 compares the measured display parameters with the standard parameters to determine whether the display screen 3 under test meets the standard.

[0047] In this invention, to enable the movement of the aforementioned detection device 7, a first track 101 and a second track 802 are provided. Please refer to [link / reference needed]. Figure 1 and Figure 2 The specific design of the first track 101 and the second track 802 is as follows:

[0048] A crossbeam 1 is provided above the housing 11. A first track 101 formed by an opening is provided on the crossbeam 1. An equipment beam 8 is also provided on the side of the crossbeam 1 facing the display screen 3 to be tested. A second track 802 formed by an opening is provided on the equipment 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 relationships between the first track 101 and the second track 802 and the crossbeam 1, the equipment beam 8, and the testing equipment 7 are 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 crossbeam 1;

[0053] A second hook 701 is provided on the testing device 7, and the second hook 701 is connected to the testing device 7 through a second connecting post;

[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 equipment beam 8;

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

[0056] Its specific motion principle is as follows:

[0057] The first connecting column is located in the first track 101 and can move along the setting direction of the first track 101. Since the first connecting column is fixedly mounted 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 mounted 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. Thus, the above structure enables the detection device 7 to move in the horizontal direction.

[0058] The second connecting column is disposed in the second track 802 and can move along the setting direction of the second track 802. Since the second connecting column is fixedly disposed 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. Thus, the detection device 7 can move in the vertical direction through the above structure.

[0059] As can be seen from the above configuration, this utility model achieves the movement of the detection device 7 in both the horizontal and vertical directions through the above structure, which also achieves the beneficial effects described above:

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

[0061] Furthermore, the present invention also includes a first nut 6 and a second nut 9 disposed on the housing 11, the first nut 6 and the second nut 9 being used to fix the two sides of the test motherboard 10 that are connected to the housing 11 to the housing 11.

[0062] In other embodiments of this utility model, a third nut and a fourth nut can be respectively provided on the two sides where the crossbar 1 connects to the box body 11, so that the crossbar 1 can rotate along the connecting axis of the third nut and the fourth nut, thereby realizing the folding and shrinking of the crossbar 1, reducing its volume, and making it easy to carry and place.

[0063] Furthermore, the present invention also includes a switching button 4 disposed on the housing 11, which is electrically connected to the test motherboard 10 and is mainly used to control the execution of the above-mentioned testing process.

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

[0065] Flexible circuit board 5 is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the substrate. It is also known as flexible board or FPC and features high wiring density, light weight and thin thickness.

[0066] Furthermore, the display parameters mentioned above in this utility model include: color coordinates, brightness uniformity, brightness value, CT value, and flicker value.

[0067] Specifically, the color coordinates of the standard RGB image displayed on the test display 3, the brightness uniformity of the white image displayed on the test display 3, the brightness value of the Gamma image displayed on the test display 3, and the CT value of the Crosstalk image displayed on the test display 3.

[0068] Among them, the testing equipment 7 in this utility model adopts the Minolta CA-310 testing equipment;

[0069] It can measure the aforementioned display parameters, that is, the LCD parameters.

[0070] Please see Figure 3 The above is a flowchart of the overall process of this utility model. First, the display screen to be tested, namely the display screen 3 to be tested, is placed in the test station.

[0071] In this utility model, the test motherboard 10 is equipped with a display screen testing system. After the display screen 3 to be tested is placed, the system can control the display screen to start by switching button 4. The display screen 3 to be tested starts the display program and begins to display a standard RGB image, a standard Gamma image, a standard Crosstalk image, a standard flick image, and a standard afterimage image. Then, the system uses a Minolta CA-310 testing device to measure the color coordinates of the standard RGB image, the brightness uniformity of the white screen, the brightness value of the Gamma image, and the CT value of the Crosstalk image.

[0072] The test motherboard 10 of this utility model is also equipped 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] The test motherboard 10 is also equipped with a comprehensive measurement structure judgment system, which is mainly used to compare the measured values ​​(i.e. the display parameters checked in the previous text) recorded by the above measurement and testing equipment with the standard parameters, and then perform corresponding judgments. The judgments it performs include: judging whether the minimum and maximum brightness of the display meets the standard, judging whether the uniformity of the display screen meets the standard, judging whether the saturation of the display screen meets the standard, judging whether the flicker of the display screen meets the standard, and judging whether the afterimage of the display screen meets the standard.

[0074] After completing the above determination, a test report for the entire display screen 3 under test can be output.

[0075] The above is a flowchart of the overall process of this utility model. Combined with the structural design described above, it can be seen that this utility model can achieve at least the following beneficial effects:

[0076] This invention includes a testing device 7 and a test motherboard 10. The testing device 7 measures the display parameters, and the test motherboard 10 compares the measured display parameters with standard parameters to determine whether the display screen 3 under test meets the standard. Furthermore, due to the arrangement of the first track 101 and the second track 802, the testing device 7 can move in both horizontal and vertical directions, thus enabling it to adapt to different display screen models and improving its versatility.

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

Claims

1. A display screen automatic testing apparatus characterized by comprising: The application relates to a display screen testing device, which comprises a box (11) provided with a detection station for placing a display screen (3) to be tested, wherein the display screen (3) to be tested is electrically connected with a test mainboard (10) through a flexible circuit board (5); a detection device (7) is arranged above the detection station and can move in horizontal and vertical directions, and the detection device (7) is electrically connected with the test mainboard (10); the detection device (7) is used for measuring display parameters of the display screen (3) to be tested; a standard parameter library is built in the test mainboard (10), the display parameters are compared with the standard parameters, and a judgment result of whether the display screen (3) to be tested meets the standards is output. A crossbeam (1) is arranged above the box (11), the crossbeam (1) is provided with a first track (101) formed by an opening, a device beam (8) is further arranged on one side of the crossbeam (1) facing the display screen (3) to be tested, and the device beam (8) is provided with a second track (802) formed by an opening; The first track (101) and the second track (802) are perpendicular to each other, and the detection device (7) can move along the setting directions of the first track (101) and the second track (802).

2. The display screen automatic testing apparatus according to claim 1, wherein A first hanging buckle (801) is arranged at the lower part of the device beam (8), and the first hanging buckle (801) is connected with the device beam (8) through a first connecting column; The first connecting column passes through the opening of the first track (101), and the first hanging buckle (801) and the device beam (8) are distributed on both sides of the crossbeam (1); 3. The display screen automatic testing apparatus according to claim 2, wherein A second hanging buckle (701) is arranged on the detection device (7), and the second hanging buckle (701) is connected with the detection device (7) through a second connecting column; The second connecting column passes through the opening of the second track (802), and the second hanging buckle (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 the detection device (7) moves together, and the detection device (7) can move along the setting direction of the second track (802) through the second connecting column. First and second nuts (6 and 9) are arranged on the box (11), and the first and second nuts (6 and 9) are used for fixing the two sides of the test mainboard (10) connected with the box (11) to the box (11). A switching button (4) is arranged on the box (11) and is electrically connected with the test mainboard (10).

4. The display screen automatic testing apparatus according to claim 1, wherein The display parameters include color coordinates, brightness uniformity, brightness value, CT value and Flick value.

5. The display screen automatic testing apparatus according to claim 1, wherein The detection device (7) is a MABECA-310 detection device.

6. The display screen automatic testing apparatus according to claim 1, wherein ​ 7. The display screen automatic testing apparatus according to claim 1, wherein ​

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