Display screen double-station visual inspection equipment

Abstract

The utility model relates to the technical field of display screen detection, in particular to display screen double-station visual detection equipment which comprises a detection table, and a display screen detection inlet, a visual detection station, a touch control detection station and a display screen detection outlet are sequentially reserved on the detection table in the Y-axis direction. A Y-axis moving assembly and a display screen placing tool connected with the Y-axis moving assembly are arranged on the detection table along the Y axis. A plurality of visual detection cameras in array distribution are arranged at a visual detection station, so that visual detection of display contents of a display screen is comprehensively and accurately completed; the touch control detection station is provided with a touch control detection assembly comprising a touch control pen, an X-axis moving assembly and a Z-axis moving assembly, multi-point touch control detection can be conducted on the display screen, it is ensured that the touch control function and the key pressing function of the display screen are normal, and all-directional and accurate detection guarantee is provided for the quality of the display screen.

Description

Technical Field

[0001] This utility model relates to the field of display screen inspection technology, specifically a dual-station visual inspection device for display screens. Background Technology

[0002] In the field of traditional industrial automation technology, the common method for testing touch screens is to inspect their internal components before the screen is installed. While this method can ensure the quality of the components to a certain extent, it has significant limitations.

[0003] Because the display screen needs to go through many other processes before it is finally packaged and shipped out of the factory;

[0004] For example, various operations during assembly and vibrations during transportation can all lead to product quality problems caused by installation or external factors.

[0005] For example, improper installation during assembly may cause loosening or poor contact of the internal wiring of the display screen, or collisions during transportation may cause scratches on the surface of the display screen or displacement of internal components. These problems cannot be detected by component testing alone.

[0006] Therefore, in order to effectively solve this problem and ensure the final quality of display products, it is particularly necessary to develop a dual-station visual touch inspection device for back-end displays. Utility Model Content

[0007] This utility model addresses the technical problems existing in the prior art by providing a dual-station visual inspection device for display screens to solve the problem of non-standard quality inspection of existing display screens, which affects the product qualification rate.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A dual-station visual inspection device for display screens includes an inspection table, wherein the inspection table is provided with a display screen inspection entrance, a visual inspection station, a touch inspection station, and a display screen inspection exit in sequence along the Y-axis direction;

[0009] The testing station is equipped with a Y-axis moving component and a display screen placement fixture connected to the Y-axis moving component. The Y-axis moving component is used to drive the display screen to move sequentially along the display screen testing inlet, the visual testing station, the touch testing station, and the display screen testing outlet.

[0010] A visual inspection component and a touch inspection component are sequentially arranged above the visual inspection station and the touch inspection station; the visual inspection component is used to visually inspect the content displayed on the screen passing below; the touch inspection component is used to touch inspect the screen passing below.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the visual inspection component includes multiple visual inspection cameras arranged in an array.

[0013] Furthermore, the touch detection component includes a stylus, and an X-axis movement component and a Z-axis movement component connected to the stylus; the X-axis movement component and the Z-axis movement component respectively drive the stylus to move along the X and / or Y directions to perform multi-point touch detection on the display screen.

[0014] Furthermore, the Y-axis moving component, X-axis moving component, and Z-axis moving component are all electrically driven linear drive components.

[0015] Furthermore, the display screen placement fixture has a pre-drilled slot for fitting the display screen.

[0016] Furthermore, an outer cover is installed on the testing platform, and dustproof curtains are installed along the testing entrance and testing exit of the display screen.

[0017] Furthermore, the testing station has two sets of pre-reserved display screen testing entrance, vision testing station, touch testing station, and display screen testing exit along the Y-axis direction.

[0018] Furthermore, the fixture for placing the display screen has a reserved power supply and communication interface that can be connected to the display screen to be tested.

[0019] The beneficial effects of this utility model are:

[0020] 1) By setting up multiple arrayed visual inspection cameras at the visual inspection station, the display screen can be photographed and inspected simultaneously or sequentially, covering multiple aspects such as LCD testing, backlight brightness testing, key light testing, and system indicator light testing, to comprehensively and accurately complete the visual inspection of the display screen content; the touch inspection station is equipped with a touch inspection component including a stylus, an X-axis movement component, and a Z-axis movement component, which can perform multi-point touch inspection on the display screen, including touch and key press testing, to ensure that the touch function and key press function of the display screen are normal, providing comprehensive and accurate inspection assurance for the quality of the display screen.

[0021] 2) The inspection station is arranged along the Y-axis with two sets of sequentially arranged inspection areas (display screen inspection entrance, vision inspection station, touch inspection station, and display screen inspection exit). Each set of inspection areas forms an independent and complete inspection process channel without interference. The equipment can inspect two displays simultaneously, greatly reducing the waiting time for individual display inspections, improving overall inspection efficiency, and meeting the needs of large-scale production. At the same time, the enclosed or semi-enclosed space formed by the outer cover and dustproof curtain effectively prevents external dust from entering the inspection area, reduces interference from external environmental factors such as light and airflow on the inspection process, ensures a stable inspection environment, and helps the vision inspection component and touch inspection component complete the inspection task more accurately, improving inspection consistency and stability.

[0022] 3) The fixture for placing the display screen has a pre-reserved slot for the display screen. Its shape, size, and structure are specially designed according to the shape characteristics of various display screens to be tested. It can firmly fix the display screen on the fixture, prevent the display screen from moving, shaking, or tilting during the test, and ensure that the display screen can smoothly pass through each test station under the drive of the Y-axis moving component, thereby improving the test accuracy. At the same time, the fixture has reserved power supply and communication interfaces for connecting to the display screen to be tested. The power supply interface provides power support for the normal operation of the display screen, and the communication interface realizes the transmission of instructions and data feedback between the equipment and the display screen. This allows the equipment to accurately control the display screen according to the preset test process and obtain accurate test results, ensuring the smooth progress of the test process, improving the test efficiency and accuracy, and enhancing the versatility of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a rear view of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Inspection table; 2. Y-axis moving assembly; 3. Display screen placement fixture; 3.1. Slot; 4. Vision inspection assembly; 5. Touch inspection assembly; 5.1. Stylus pen; 5.2. X-axis moving assembly; 5.3. Z-axis moving assembly; 1.1. Outer cover; 6. Dustproof curtain. Detailed Implementation

[0028] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0029] The present invention provides the following preferred embodiments.

[0030] like Figure 1-3 As shown, a dual-station visual inspection device for a display screen includes an inspection table 1, wherein the inspection table 1 is provided with a display screen inspection entrance, a visual inspection station, a touch inspection station, and a display screen inspection exit in sequence along the Y-axis direction;

[0031] The testing station 1 is equipped with a Y-axis moving component 2 along the Y-axis, and a display screen placement fixture 3 connected to the Y-axis moving component 2. The Y-axis moving component 2 is used to drive the display screen to move sequentially along the display screen testing entrance, the visual testing station, the touch testing station, and the display screen testing exit.

[0032] A visual inspection component 4 and a touch inspection component 5 are sequentially arranged above the visual inspection station and the touch inspection station; the visual inspection component 4 is used to visually inspect the content displayed on the screen passing below; the touch inspection component 5 is used to touch inspect the screen passing below.

[0033] The inspection station 1 is sequentially planned along the Y-axis, including a display screen inspection inlet, a visual inspection station, a touch inspection station, and a display screen inspection outlet. A Y-axis moving component 2 is installed along the Y-axis of the inspection station 1, and a display screen placement fixture 3 is connected to it. Driven by the Y-axis moving component 2, the display screen placed on the fixture 3 sequentially passes through the inspection inlet, the visual inspection station, and the touch inspection station, finally reaching the inspection outlet. A visual inspection component 4 is installed above the visual inspection station. When the display screen moves to this station, the visual inspection component 4 performs visual inspection of the content displayed on the screen. A touch inspection component 5 is installed above the touch inspection station. When the display screen moves to this station, the touch inspection component 5 performs touch inspection on the display screen, thus completing both visual and touch inspection of the display screen.

[0034] In one implementation, the visual inspection component 4 includes multiple arrayed visual inspection cameras (the inspection content includes LCD testing, backlight brightness testing, button light testing, system indicator light testing, etc.).

[0035] When the display screen moves to the visual inspection station driven by the Y-axis moving component 2, the array of visual inspection cameras start working simultaneously or sequentially to capture and inspect the display screen from different angles and positions.

[0036] Specifically, the testing covers multiple aspects, including LCD testing (checking whether the LCD display is normal and whether there are any dead pixels), backlight brightness testing (measuring whether the backlight brightness of the display meets the standard), key light testing (checking the display status and brightness of the key lights on the display), and system indicator light testing (checking whether the display of the system indicator lights is normal), in order to comprehensively and accurately complete the visual inspection of the content displayed on the screen.

[0037] In one embodiment, the touch detection component 5 includes a stylus 5.1, and an X-axis movement component 5.2 and a Z-axis movement component 5.3 connected to the stylus 5.1; the X-axis movement component 5.2 and the Z-axis movement component 5.3 respectively drive the stylus 5.1 to move along the X and / or Y directions to perform multi-point touch detection on the display screen, including touch detection and button press detection by the stylus.

[0038] When the display screen moves to the touch detection station, the X-axis moving component 5.2 and the Z-axis moving component 5.3 work together. The X-axis moving component 5.2 drives the stylus 5.1 to move along the X direction, and the Z-axis moving component 5.3 drives the stylus 5.1 to move along the Z direction. Through the cooperation of the two, the stylus 5.1 can move flexibly along the X and / or Y directions, so that the stylus 5.1 can reach different positions on the display screen to perform multi-point touch detection on the display screen.

[0039] During the testing process, the stylus 5.1 not only performs touch operations on the display surface, but also simulates button pressing actions, thereby comprehensively testing whether the touch function and button pressing function of the display are normal.

[0040] In one embodiment, the Y-axis moving component 2, the X-axis moving component 5.2, and the Z-axis moving component 5.3 are all electrically driven linear drive components.

[0041] An electric linear actuator is a device that converts electrical energy into linear motion. It uses common motors (such as servo motors and stepper motors) as the core power source, combined with transmission mechanisms (such as lead screw and nut pairs, synchronous belt drives, etc.) to achieve linear motion; further details will not be elaborated upon here.

[0042] As one implementation, the display screen placement fixture 3 has a pre-reserved slot 3.1 for adapting to the display screen, which can be used for pre-shipment testing of industrial touch screens, commercial touch screens, displays, displays with multi-function buttons, etc.

[0043] The shape, size, and structure of the slot 3.1 are specifically designed based on the external characteristics of various displays to be tested, such as industrial touch screens, commercial touch screens, ordinary displays, and displays with multi-function buttons. During pre-shipment testing, the corresponding type of display is accurately placed into the slot 3.1. The slot 3.1 can fit tightly against the edge, protrusion, or specific part of the display, and physically constrain the display to securely fix it on the display placement fixture 3, preventing the display from moving, shaking, or tilting during subsequent testing.

[0044] In one embodiment, the testing station 1 is equipped with an outer cover 1.1, and dustproof curtains 6 are arranged along the testing entrance and testing exit of the display screen.

[0045] The dust curtains 6 installed at the entrance and exit of the display screen detection area are usually made of soft and elastic materials, such as rubber or soft plastic. When the display screen needs to enter or leave the detection area, the dust curtain 6 is pushed open by the display screen to form a temporary passage for the display screen to pass through smoothly; after the display screen passes through, the dust curtain 6 will return to its original shape due to its elasticity and close the passage again.

[0046] In one implementation, the testing station 1 has two sets of reserved display screen testing entrance, visual testing station, touch testing station and display screen testing exit along the Y-axis direction.

[0047] In industrial production environments, the air often contains a large amount of dust, fine particles, and other impurities. The enclosed or semi-enclosed space formed by the outer cover 1.1 and the dust curtain 6 can effectively block external dust from entering the detection area, preventing dust from adhering to the surface of the display screen and affecting the accuracy of the visual inspection component 4 in detecting the content displayed on the display screen.

[0048] In addition to dust protection, the outer cover 1.1 and dust curtain 6 can also reduce the interference of external environmental factors, such as light and airflow, on the detection process to a certain extent. A stable environment helps the vision detection component 4 and the touch detection component 5 to complete the detection task more accurately, improving the consistency and stability of the detection.

[0049] As one implementation, the display screen placement fixture 3 has a reserved power supply and communication interface that can be connected to the display screen to be tested.

[0050] Power Supply Interface: The power supply interface is designed to match the power input of the display screen under test. When the display screen is placed on the display screen mounting fixture 3, the power supply interface of the display screen precisely mates with the power supply interface inside the fixture, forming an electrical connection. The equipment transmits electrical energy from the external power source to the display screen stably and accurately through this power supply interface, providing the necessary power support for the normal operation of the display screen, enabling it to light up, display images, and drive the internal electronic components.

[0051] Communication Interface: The communication interface is designed according to a specific communication protocol (such as common serial communication protocols, USB communication protocols, etc.) and is compatible with the communication interface of the display screen under test. The communication interface is connected simultaneously with the power supply interface. The device establishes a data transmission channel with the display screen through the communication interface, enabling it to send various control commands to the display screen, such as controlling the display screen to show specific test screens, switching between different working modes, etc. Simultaneously, the display screen can also send its own status information and test feedback data back to the device through the communication interface, realizing bidirectional data interaction between the device and the display screen.

[0052] In this embodiment, the detection station 1 has two sets of display screen detection entrance, visual inspection station, touch detection station and display screen detection exit reserved along the Y-axis direction, which can be detected simultaneously without interference.

[0053] Each testing area forms a relatively independent and complete testing process channel. The two groups of areas are separated by physical intervals and do not interfere with each other.

[0054] Because it has two independent inspection areas, the equipment can inspect two displays simultaneously, greatly reducing the inspection waiting time for a single display and improving overall inspection efficiency. It can complete the inspection of more displays in the same amount of time, meeting the speed requirements of large-scale production.

[0055] 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, improvements, etc., 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 dual station vision inspection apparatus, characterized by, The system includes a testing station (1), which sequentially reserves a display screen testing entrance, a visual testing station, a touch testing station, and a display screen testing exit along the Y-axis. The testing station (1) is provided with a Y-axis moving component (2) along the Y-axis, and a display screen placement fixture (3) connected to the Y-axis moving component (2). The Y-axis moving component (2) is used to drive the display screen to move sequentially along the display screen testing entrance, the visual testing station, the touch testing station, and the display screen testing exit. A visual inspection component (4) and a touch inspection component (5) are arranged sequentially above the visual inspection station and the touch inspection station; the visual inspection component (4) is used to visually inspect the content displayed on the screen passing below; the touch inspection component (5) is used to touch inspect the screen passing below.

2. The display screen dual position vision inspection apparatus of claim 1, wherein, The visual inspection component (4) includes multiple visual inspection cameras arranged in an array.

3. The dual-station visual inspection equipment for displays according to claim 1, characterized in that, The touch detection component (5) includes a stylus (5.1), and an X-axis movement component (5.2) and a Z-axis movement component (5.3) connected to the stylus (5.1); the X-axis movement component (5.2) and the Z-axis movement component (5.3) respectively drive the stylus (5.1) to move along the X and / or Y directions to perform multi-point touch detection on the display screen.

4. The display screen dual position vision inspection apparatus of claim 3, wherein, The Y-axis moving component (2), X-axis moving component (5.2) and Z-axis moving component (5.3) are all electrically driven linear drive components.

5. The display screen dual position vision inspection apparatus of claim 1, wherein, The display screen placement fixture (3) has a pre-reserved slot (3.1) for the display screen.

6. The display screen dual position vision inspection apparatus of claim 1, wherein, The testing platform (1) is equipped with an outer cover (1.1), and dustproof curtains (6) are installed along the testing entrance and testing exit of the display screen.

7. The display screen dual position vision inspection apparatus of any of claims 1-6, wherein, The testing station (1) has two sets of reserved display screen testing entrance, vision testing station, touch testing station and display screen testing exit along the Y-axis direction.

8. The display screen dual position vision inspection apparatus of claim 1, wherein, The display screen placement fixture (3) has a reserved power supply and communication interface that can be connected to the display screen to be tested.

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