Automatic testing device for display screen module

Abstract

The utility model relates to the technical field of display screen accessory testing devices, and discloses an automatic testing device for a display screen module, which comprises a ground, a plurality of racks are detachably connected to the top of the ground, upper covers are fixedly connected to the tops of the racks, and displays are mounted outside the upper covers. The inner walls of the plurality of upper covers are all detachably connected with fixing frames, the exteriors of the plurality of fixing frames are all detachably connected with CCD cameras, the tops of the plurality of upper covers are all fixedly connected with limiting assemblies used for fixing test workpieces, the limiting assemblies comprise jig carrying plates, and the bottoms of the jig carrying plates are detachably connected to the tops of the upper covers. In the utility model, for the detection of the curved screen, the image needs to be calibrated firstly after the image is positioned by the visual software, and then the subsequent test is carried out, and the key performance indexes such as the resolution, the color performance and the brightness uniformity of the display screen can be quickly and repeatedly evaluated by the automatic test.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen accessory testing devices, in particular to an automatic testing device for a display screen module. Background Art

[0002] A display module is a complete display unit that integrates a display panel, driver circuitry, and other electronic components. It is widely used in various devices, such as mobile phones, televisions, computers, and instrumentation. Display modules typically incorporate technologies such as liquid crystal (LCD) and organic light-emitting diode (OLED) to present images and information. They are designed to provide high resolution, excellent color rendering, and high contrast, while also being durable and energy-efficient. The integrated design of display modules simplifies system assembly and improves overall performance and reliability.

[0003] Existing display modules that haven't undergone automated testing are subject to numerous risks, including unstable performance, uneven quality, and potential failures. Automated testing can quickly and efficiently verify key display indicators such as resolution, color accuracy, and brightness uniformity, ensuring compliance with design standards and quality requirements. To address these issues, an automated display module testing device has been proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides an automated testing device for display screen modules, aiming to improve the problem in the prior art that display screen modules that have not undergone automated testing may have risks of unstable performance and uneven quality.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A display screen module automated testing device comprises a floor, the top of the floor being detachably connected to a plurality of racks, the tops of the plurality of racks being fixedly connected to an upper cover, the exteriors of the plurality of upper covers being mounted with displays, the inner walls of the plurality of upper covers being detachably connected to a fixing frame, the exteriors of the plurality of fixing frames being detachably connected to a CCD camera, and the tops of the plurality of upper covers being fixedly connected to a limit assembly for fixing a test workpiece.

[0007] As a further description of the above technical solution:

[0008] The limiting assembly includes a jig carrier plate, and the bottom of the jig carrier plate is detachably connected to the top of the upper cover.

[0009] As a further description of the above technical solution:

[0010] The exterior of the frame is rotatably connected to two lower frame doors, the exterior of the upper cover is rotatably connected to a rear frame door, and the exterior of the frame is rotatably connected to two side frame doors.

[0011] As a further description of the above technical solution:

[0012] An alarm light is installed on the top of the upper cover, and the four corners of the bottom of the frame are detachably connected with stabilizing pads.

[0013] As a further description of the above technical solution:

[0014] The top of the frame is detachably connected with a button box, and the top of the frame is detachably connected with a mouse.

[0015] As a further description of the above technical solution:

[0016] The top of the fixture carrier plate is detachably connected to a product, and the top of the frame is detachably connected to a keyboard.

[0017] As a further description of the above technical solution:

[0018] A plurality of adjustment blocks are installed on the top of the jig carrier plate, and an adjustment plate is installed on the top of the jig carrier plate.

[0019] The utility model has the following beneficial effects:

[0020] In this application, for curved screen inspection, after the visual software locates the image, it must first be calibrated before subsequent testing. Automated testing of display modules helps improve inspection efficiency and accuracy. Automated testing can quickly and repeatedly evaluate key performance indicators such as display resolution, color rendering, and brightness uniformity, ensuring that each module meets design specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of an automatic testing device for display screen modules proposed by the present invention;

[0022] Figure 2 This is a structural schematic diagram of an upper cover of an automatic testing device for display screen modules proposed in the present invention;

[0023] Figure 3 This is a structural diagram of a frame of an automatic testing device for display screen modules proposed in the present invention;

[0024] Figure 4 This is a structural diagram of a fixture carrier board of a display module automated testing device proposed by the present invention;

[0025] Figure 5 for Figure 4Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Floor; 2. Rack; 3. Upper cover; 4. Warning light; 5. Display; 6. Fixture; 7. CCD camera; 8. Fixture carrier; 9. Adjustment block; 10. Product; 11. Adjustment plate; 12. Rear frame door; 13. Lower frame door; 14. Side frame door; 15. Keyboard box; 16. Keyboard; 17. Stability pad; 18. Mouse. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1 、 Figure 4 and Figure 5 The present invention provides an embodiment of a display screen module automatic testing device, comprising a floor 1, a plurality of racks 2 are detachably connected to the top of the floor 1, and the floor 1 has a supporting and fixing function for the plurality of racks 2 (such as the attached Figure 1 The tops of the multiple racks 2 are fixedly connected with upper covers 3, which support and fix the upper covers 3. The outsides of the multiple upper covers 3 are all equipped with displays 5 (such as the attached Figure 4 ), the upper cover 3 has the function of fixing the position of the display 5. The inner walls of the multiple upper covers 3 are detachably connected to the fixing frame 6, and the upper cover 3 has the function of fixing the position of the fixing frame 6. The outer surfaces of the multiple fixing frames 6 are detachably connected to the CCD cameras 7 (such as the attached Figure 5 ), the fixing frame 6 has the function of fixing the position of the CCD camera 7.

[0030] Reference Figure 3 The outer rotation of the frame 2 is connected to two lower frame doors 13 (as shown in the attached Figure 3), if the interior of the frame 2 needs to be cleaned or replaced, the two lower frame doors 13 can be opened. The outside of the upper cover 3 is rotatably connected to the rear frame door 12. If the internal structure of the upper cover 3 needs to be cleaned or replaced, this can be achieved by rotating and opening the rear frame door 12. The outside of the frame 2 is rotatably connected to two side frame doors 14. If the side inner walls of the frame 2 need to be cleaned, this can be achieved by rotating and opening the two side frame doors 14. An alarm light 4 is installed on the top of the upper cover 3. The alarm light 4 in the display module automated testing device is used to indicate abnormalities or faults during the test process in real time. When the testing device detects that the display module does not meet the set quality standards or a technical problem occurs, the alarm light 4 will light up to alert the operator or system administrator.

[0031] Reference Figure 2 and Figure 4 The bottom four corners of the frame 2 are detachably connected with a stabilizing pad 17 (as shown in the attached Figure 2 ) to ensure that the entire device is in a horizontal state during the test. A plurality of upper covers 3 are provided with windows on their exteriors to facilitate the entry of light sources when the device is working. The tops of the plurality of upper covers 3 are fixedly connected to a limit assembly for fixing the test workpiece. The limit assembly includes a fixture carrier 8. The bottom of the fixture carrier 8 is detachably connected to the top of the upper cover 3 (as shown in the attached figure). Figure 4 ), the top of the jig carrier plate 8 is detachably connected to the product 10, the top of the jig carrier plate 8 is detachably connected to the product 10, and the product 10 is placed on the top of the jig carrier plate 8.

[0032] A plurality of adjustment blocks 9 are installed on the top of the jig carrier 8, and an adjustment plate 11 is installed on the top of the jig carrier 8. Through the cooperation of the plurality of adjustment blocks 9 and the adjustment plate 11, the product 10 can be fixed on the top of the jig carrier 8. A key box 15 (as shown in the attached figure) is detachably connected to the top of the frame 2. Figure 2 ), the chassis 2 supports and secures the key box 15. A mouse 18 is detachably connected to the top of the chassis 2, supporting and securing the mouse 18. A keyboard 16 is detachably connected to the top of the chassis 2, supporting and securing the keyboard 16.

[0033] Working Principle: Product 10 is placed on top of the jig carrier 8. Multiple adjustment blocks 9 cooperate with adjustment plates 11 to secure product 10 to the top of the jig carrier 8. The testing software is controlled by keyboard 16 and mouse 18. The software system first controls CCD camera 7 to capture images. For flat-panel display inspection, the vision software locates the image, performs FFT conversion, filtering and denoising, image segmentation, and detects defective areas (such as bad pixels, scratches, dust, and other areas of abnormal brightness). The software then determines whether the product is good or not. For curved display inspection, the vision software calibrates the image after positioning it before conducting subsequent testing. Completed test data can be uploaded to a server or MES, as defined. Automated testing of display modules helps improve inspection efficiency and accuracy. Automated testing can quickly and repeatedly evaluate key performance indicators such as resolution, color rendering, and brightness uniformity, ensuring that each module meets design specifications. This not only improves product consistency and quality control, but also reduces human error and lowers production costs. In addition, timely detection and correction of problems can improve user satisfaction and enhance brand reputation.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A display screen module automated testing device, comprising a floor (1), characterized in that: The top of the ground (1) is detachably connected to a plurality of racks (2), the tops of the plurality of racks (2) are fixedly connected to an upper cover (3), the exteriors of the plurality of upper covers (3) are mounted with a display (5), the inner walls of the plurality of upper covers (3) are detachably connected to a fixing frame (6), the exteriors of the plurality of fixing frames (6) are detachably connected to a CCD camera (7), and the tops of the plurality of upper covers (3) are fixedly connected to a limit assembly for fixing a test workpiece.

2. The display screen module automatic testing device according to claim 1, characterized in that: The limiting assembly comprises a jig carrier plate (8), the bottom of which is detachably connected to the top of the upper cover (3).

3. The display screen module automatic testing device according to claim 1, characterized in that: The exterior of the frame (2) is rotatably connected to two lower frame doors (13), the exterior of the upper cover (3) is rotatably connected to a rear frame door (12), and the exterior of the frame (2) is rotatably connected to two side frame doors (14).

4. The display screen module automatic testing device according to claim 1, characterized in that: An alarm light (4) is installed on the top of the upper cover (3), and stabilizing pads (17) are detachably connected to the four corners of the bottom of the frame (2).

5. The display screen module automatic testing device according to claim 1, characterized in that: The top of the frame (2) is detachably connected to a key box (15), and the top of the frame (2) is detachably connected to a mouse (18).

6. The display screen module automatic testing device according to claim 2, characterized in that: The top of the jig carrier plate (8) is detachably connected to a product (10), and the top of the frame (2) is detachably connected to a keyboard (16).

7. The display screen module automatic testing device according to claim 2, characterized in that: A plurality of adjustment blocks (9) are installed on the top of the jig carrier plate (8), and an adjustment plate (11) is installed on the top of the jig carrier plate (8).

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