Detection device for touch display screen production

Abstract

The utility model belongs to the technical field of touch display screen detection, and discloses a detection device for touch display screen production, which comprises a table top, a sliding groove is arranged on the table top, a positioning plate is clamped in the sliding groove in a sliding manner, a display screen fixing groove is arranged on the positioning plate, a touch detector is arranged on one side of the positioning plate, and the touch detector is arranged on the other side of the positioning plate. The touch detector comprises a fixed support, a Y-axis moving device, an X-axis moving device, an electric servo telescopic rod and a detection head, the Y-axis moving device comprises two groups of Y-axis motion tracks, Y-axis motion sliding blocks are clamped in the two groups of Y-axis motion tracks in a sliding mode, the X-axis moving device comprises an X-axis motion track, an X-axis motion sliding block and an X-axis lead screw, and the X-axis motion sliding block is clamped in the X-axis lead screw. The detection head comprises an extension rod, a fixed sleeve and a touch head, the detection head is fixed on the electric servo telescopic rod through the fixed sleeve in a threaded mode, the structure design is compact and reasonable, the detection head can be controlled to move to the position above the touch display screen, and the detection head extends to make contact with and press the touch display screen to conduct quality detection on the touch display screen.

Description

Technical Field

[0001] This utility model relates to the field of touch screen testing technology, specifically a testing device for touch screen production. Background Technology

[0002] In today's digital age, touch displays have become an indispensable interactive interface for many electronic devices. From smartphones and tablets to smart home appliances and industrial control terminals, touch displays have dramatically changed the way people interact with electronic devices thanks to their intuitive and convenient operating experience.

[0003] In the consumer electronics sector, the widespread adoption of smartphones has made touchscreens a frequently used component in daily life. Consumers use touchscreens for various functions such as speed dialing, information retrieval, mobile payments, and gaming, placing extremely high demands on the response speed, sensitivity, and durability of touchscreens. Tablet computers offer users an even wider touch operation space for reading, drawing, and office work, requiring strict standards for the accuracy and color reproduction of touchscreens. In the industrial sector, touchscreens are widely used in control panels and monitoring equipment on automated production lines. In industrial environments, operators need to use touchscreens to monitor and adjust complex production processes in real time, requiring touchscreens to possess high reliability, anti-interference capabilities, and the ability to adapt to harsh working environments.

[0004] The quality of a touchscreen display directly impacts a product's user experience and market competitiveness. A high-quality touchscreen display should possess precise touch response, ensuring accurate feedback for every touch operation; excellent display effects, including clear images, vibrant colors, and high contrast; and stable performance, preventing touch malfunctions or display abnormalities during prolonged use. During the manufacturing process, various quality defects may occur in touchscreen displays due to fluctuations in raw material quality, differences in production processes, and the stability of equipment operation. For example, during display manufacturing, issues such as pixel damage, short circuits, or open circuits may occur, leading to display abnormalities; poor manufacturing processes in the touch sensing layer may result in uneven touch sensitivity, with some areas showing no response or false responses. Therefore, comprehensive and rigorous quality testing of post-production touchscreen displays is crucial. Only by selecting qualified products through testing can the quality of the final electronic product and user satisfaction be guaranteed.

[0005] Currently, various testing methods exist for touch displays, but these traditional methods generally have limitations. Some early testing methods combined manual touch operation with visual observation. Inspectors manually touch specific areas of the display to observe whether the displayed content changes normally and whether the touch feedback is sensitive. This method is not only inefficient, but the test results are also greatly affected by human factors. Differences in touch pressure and operating habits among different inspectors can lead to inaccurate results. Furthermore, manual inspection struggles to comprehensively and meticulously inspect every corner of the display, easily overlooking subtle quality issues. While some automated testing equipment improves efficiency to some extent, it still has limitations in the coverage of testing points. These devices typically only test a limited number of points on the touch display along a preset fixed path, failing to fully cover the entire surface. Because quality problems that may arise during the production of touch displays are random, testing only a limited number of points cannot effectively detect potential touch insensitivity or display abnormalities in other areas of the display. For example, areas prone to stress concentration, such as the edges or corners of the display, may exhibit abnormal touch responses, but existing testing methods often cannot adequately test these areas. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a testing device for touch screen production, which solves the problems mentioned in the background art, such as the inconvenience of using a single testing point.

[0008] (II) Technical Solution

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a testing device for touch screen production, comprising a table, a sliding groove provided on the table, a positioning plate slidably engaged in the sliding groove, a display screen fixing groove provided on the positioning plate, and a touch detector provided on one side of the positioning plate.

[0010] Preferably, the touch detector includes a fixed bracket, a Y-axis moving device, an X-axis moving device, an electric servo telescopic rod, and a detection head. The fixed bracket is welded and fixed to the table surface. A device housing is provided on the top of the fixed bracket. The Y-axis moving device and the X-axis moving device are provided inside the housing. An electric servo telescopic rod is provided below the X-axis moving device. The detection head is connected to the end of the electric servo telescopic rod.

[0011] Preferably, the Y-axis moving device includes two sets of Y-axis motion tracks, and Y-axis motion sliders are slidably engaged in the two sets of Y-axis motion tracks. A Y-axis lead screw is provided on the side of one set of Y-axis motion sliders away from the center, and the movable part of the Y-axis lead screw is welded to the Y-axis motion slider.

[0012] Preferably, the X-axis moving device includes an X-axis motion track, an X-axis motion slider, and an X-axis lead screw. The X-axis motion track and the X-axis lead screw are fixedly installed at the center of the two sets of Y-axis motion sliders. The X-axis motion slider is slidably engaged in the X-axis motion track. The X-axis motion slider is welded to the movable part of the X-axis lead screw. An electric servo telescopic rod is fixedly installed on the side of the X-axis motion slider away from the X-axis lead screw.

[0013] Preferably, the detection head includes an extension rod, a fixed sleeve, and a touch head. The two ends of the extension rod are respectively connected to the fixed sleeve and the touch head. The end of the electric servo telescopic rod is machined with a thread corresponding to the fixed sleeve. The detection head is fixed to the electric servo telescopic rod through the thread of the fixed sleeve.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a testing device for touch screen production, which has the following advantages:

[0016] 1. The testing device for touch screen production is equipped with X-axis and Y-axis moving devices, electric servo telescopic rod and testing head, which can control the testing head to move above the touch screen and extend to contact and press the touch screen to perform quality inspection.

[0017] 2. Equipped with X-axis and Y-axis moving devices, it can drive the detection head to move in a plane, making it convenient to detect multiple different points on the touch display screen. The detection head is driven by electronic control, making the detection operation simple and easy to use.

[0018] 3. A fixing sleeve is provided, which is used to fix the touch head to the end of the telescopic rod through the sleeve and threads, which facilitates the disassembly and installation of the detection head. Multiple detection heads of different models are provided to facilitate the detection of various types of touch screens. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the touch detector structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the X-axis moving device of this utility model;

[0022] Figure 4 This is a schematic diagram of the Y-axis moving device of this utility model;

[0023] Figure 5 This is a schematic diagram of the detection head structure of this utility model.

[0024] In the diagram: 1. Tabletop; 2. Slide rail; 3. Positioning plate; 4. Touch detector; 5. Fixed bracket; 6. Y-axis moving device; 7. X-axis moving device; 8. Electric servo telescopic rod; 9. Detection head; 10. Y-axis motion track; 11. Y-axis motion slider; 12. Y-axis lead screw; 13. X-axis motion track; 14. X-axis motion slider; 15. X-axis lead screw; 16. Extension rod; 17. Fixed sleeve; 18. Touch head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A testing device for touch screen production includes a table 1, a slide groove 2 on the table 1, a positioning plate 3 slidably engaged in the slide groove 2, a display screen fixing groove on the positioning plate 3, and a touch detector 4 on one side of the positioning plate 3.

[0028] Furthermore, the touch detector 4 includes a fixed bracket 5, a Y-axis moving device 6, an X-axis moving device 7, an electric servo telescopic rod 8, and a detection head 9. The fixed bracket 5 is welded and fixed to the table surface 1. The top of the fixed bracket 5 is provided with a device housing. The Y-axis moving device 6 and the X-axis moving device 7 are provided inside the housing. The electric servo telescopic rod 8 is provided below the X-axis moving device 7. The end of the electric servo telescopic rod 8 is connected to the detection head 9.

[0029] Furthermore, the Y-axis moving device 6 includes two sets of Y-axis motion tracks 10, with Y-axis motion sliders 11 slidably engaged within each set of Y-axis motion tracks 10. A Y-axis lead screw 12 is provided on the side of each Y-axis motion slider 11 away from the center, and the movable part of the Y-axis lead screw 12 is welded to the Y-axis motion slider 11. A servo motor is provided on one side of the Y-axis lead screw 12. The motor drives the Y-axis lead screw to rotate, enabling the movable part of the Y-axis lead screw 12 to move on the lead screw, which in turn drives the Y-axis motion slider 11 to move within the Y-axis motion track 10. A servo motor must be used, and a controller is employed to drive and control the movement of the servo motor, thereby controlling the movement in the Y-axis direction and enabling the entire X-axis moving device to perform Y-axis movement.

[0030] Furthermore, the X-axis moving device 7 includes an X-axis motion track 13, an X-axis motion slider 14, and an X-axis lead screw 15. The X-axis motion track 13 and the X-axis lead screw 15 are fixedly mounted at the center of two sets of Y-axis motion sliders 11. The X-axis motion slider 14 is slidably engaged within the X-axis motion track 13. The X-axis motion slider 14 is welded to the moving parts of the X-axis lead screw 15. An electric servo telescopic rod 8 is fixedly mounted on the side of the X-axis motion slider 14 facing away from the X-axis lead screw 15. The X-axis motion is similar to the Y-axis motion, using a motor to drive the X-axis lead screw to rotate, causing the moving parts of the X-axis lead screw 15 to move along the lead screw.

[0031] Furthermore, the detection head 9 includes an extension rod 16, a fixing sleeve 17, and a touch head 18. The two ends of the extension rod 16 are respectively connected to the fixing sleeve 17 and the touch head 18. The end of the electric servo telescopic rod 8 is threaded to correspond to the fixing sleeve 17. The detection head 9 is threadedly fixed to the electric servo telescopic rod 8 via the fixing sleeve 17. Different detection heads 9 can be set to detect different models of touch display screens.

[0032] Structural Description:

[0033] Table 1: Its function is to support the entire testing device and the touch screen to be tested. It is a flat plate that is placed by contacting the bottom with the placement surface. A sliding groove 2 is opened on the top for connecting the positioning plate 3.

[0034] Slide 2: Its function is to provide a sliding track for the positioning plate 3, so that the positioning plate 3 can move on the table 1. Its shape is a long strip groove opened on the surface of the table 1, which is opened on the table 1 and slides and engages with the positioning plate 3.

[0035] Positioning plate 3: Its function is to fix the touch screen to be tested and adjust the position of the screen by sliding it in the slide 2. It is plate-shaped with a screen fixing groove on the top. It is slidably engaged with the slide 2 at the bottom and placed on the table 1. It can be slidably placed under the touch detector 4.

[0036] Touch detector 4: Its function is to perform quality inspection on the touch screen. It is welded to one side of the table 1 through the fixed bracket 5, and the internal components work together to inspect the screen.

[0037] Fixed bracket 5: Its function is to support the various components of touch detector 4, weld and fix them on the table 1, and support the device housing of touch detector 4 on top.

[0038] Y-axis moving device 6: Its function is to drive the touch detector 4 to move in the Y-axis direction, so as to realize the detection coverage of different Y-axis coordinate positions of the display screen. Its shape includes two sets of parallel Y-axis motion tracks 10 and related sliders, lead screws, etc. It is installed in the top device housing of the fixed bracket 5. The Y-axis motion slider 11 is connected to the Y-axis lead screw 12 movable part, and the slider moves in the track by the motor driving the lead screw.

[0039] X-axis moving device 7: Its function is to drive the touch detector 4 to move in the X-axis direction to detect different X-axis coordinate positions of the display screen. Its shape includes X-axis motion track 13, slider and lead screw, and is installed in the center of two sets of Y-axis motion sliders 11. X-axis motion slider 14 is connected to the X-axis lead screw 15. The motor drives the lead screw to drive the slider to move in the track.

[0040] Electric servo telescopic rod 8: Its function is to control the up and down movement of the detection head 9, so that it contacts or separates from the touch screen, simulating user touch operation. It has a telescopic rod-shaped structure, with one end fixed to the side of the X-axis motion slider 14 away from the X-axis lead screw 15, and the other end connected to the detection head 9.

[0041] Detection head 9: Its function is to directly contact the touch screen and detect its touch response performance, sensitivity and other quality indicators. Its shape includes extension rod 16, fixing sleeve 17 and touch head 18. It is fixed to the end of electric servo telescopic rod 8 by the fixing sleeve 17 threaded.

[0042] Y-axis motion track 10: Its function is to provide a sliding track for the Y-axis motion slider 11, ensuring its smooth movement in the Y-axis direction. It is a long strip-shaped track, which is installed parallel to the top device housing of the fixed bracket 5 and is slidably engaged with the Y-axis motion slider 11.

[0043] Y-axis motion slider 11: Its function is to slide within the Y-axis motion track 10, thereby driving the X-axis moving device 7 and related components to move in the Y-axis direction. It is block-shaped and adapts to the track. It slides within the Y-axis motion track 10 and is welded to the movable part of the Y-axis lead screw 12 on one side.

[0044] Y-axis lead screw 12: Its function is to convert the rotational motion of the motor into linear motion, thereby driving the Y-axis motion slider 11 to move. It is screw-shaped and installed inside the device housing. The moving part is welded to the Y-axis motion slider 11, and a servo motor is connected to one side.

[0045] X-axis motion track 13: Its function is to provide a sliding track for the X-axis motion slider 14 to ensure its smooth movement in the X-axis direction. It is a long strip-shaped track and is fixedly installed in the center of the two sets of Y-axis motion sliders 11, and is slidably engaged with the X-axis motion slider 14.

[0046] X-axis motion slider 14: Its function is to slide within the X-axis motion track 13, driving the electric servo telescopic rod 8 and the detection head 9 to move in the X-axis direction. It is block-shaped and adapted to the track. It slides within the X-axis motion track 13 and is welded to the moving part of the X-axis lead screw 15. The electric servo telescopic rod 8 is installed on one side.

[0047] X-axis lead screw 15: Its function is to convert the rotational motion of the motor into linear motion, thereby driving the X-axis motion slider 14 to move. It is screw-shaped and fixedly installed at the center of the two sets of Y-axis motion sliders 11. The moving part is welded to the X-axis motion slider 14 and is driven to rotate by the motor.

[0048] Extension rod 16: Its function is to connect the fixing sleeve 17 and the touch head 18, so that the touch head 18 can detect at a suitable position, while ensuring the overall structural stability of the detection head 9. It is rod-shaped, with the fixing sleeve 17 and the touch head 18 connected at both ends respectively.

[0049] Fixed sleeve 17: Its function is to fix the detection head 9 on the electric servo telescopic rod 8 and facilitate the disassembly and installation of the detection head 9. It is cylindrical in shape, with internal threads, and one end is connected to the extension rod 16. It is connected to the external thread at the end of the electric servo telescopic rod 8 through the internal thread.

[0050] Touch head 18: Its function is to directly contact the touch screen, feel the touch response, and detect the quality of the screen. It is a component with a specific shape that contacts the screen and is installed at one end of the extension rod 16. It contacts the surface of the screen during detection.

[0051] Working Principle: The platform 1 serves as the basic support platform for the entire device, and the groove 2 on it provides a sliding track for the positioning plate 3. The operator places the touch screen to be tested into the display screen fixing slot of the positioning plate 3. By sliding the positioning plate 3 in the groove 2, the display screen can be quickly installed on the positioning plate and moved to the detection point. The touch detector 4 is the core execution component of the entire detection device. It is composed of multiple key components working together to achieve omnidirectional detection of the touch screen. The Y-axis moving device 6 is responsible for controlling the movement of the touch detector 4 in the Y-axis direction. Inside the device housing at the top of the fixed bracket 5, two sets of Y-axis motion tracks 10 are arranged in parallel, and the Y-axis motion sliders 11 slide smoothly within the Y-axis motion tracks 10. One set of Y-axis motion sliders 11 is welded to the moving part of the Y-axis lead screw 12, and a servo motor is connected to one side of the Y-axis lead screw 12. When the controller issues a command to drive the servo motor, the rotation of the motor drives the Y-axis lead screw 12 to rotate. Since the movable part of the Y-axis lead screw 12 is connected to the Y-axis motion slider 11, according to the lead screw and nut transmission principle, the rotation of the Y-axis lead screw 12 is converted into linear motion of its movable part along the lead screw axis, thereby driving the Y-axis motion slider 11 to move smoothly in the Y-axis direction within the Y-axis motion track 10. In this way, the position of the touch detector 4 in the Y-axis direction can be precisely controlled, achieving detection coverage of different Y-axis coordinate positions of the touch screen. The working principle of the X-axis moving device 7 is similar to that of the Y-axis moving device 6, but the structural layout is different. The X-axis motion track 13 and the X-axis lead screw 15 are fixedly installed in the center of the two sets of Y-axis motion sliders 11. The X-axis motion slider 14 is slidably engaged in the X-axis motion track 13, and the X-axis motion slider 14 is welded to the movable part of the X-axis lead screw 15. When the motor drives the X-axis lead screw 15 to rotate, the movable part of the X-axis lead screw 15 moves on the lead screw, thereby driving the X-axis motion slider 14 to slide in the X-axis direction within the X-axis motion track 13. Since the electric servo telescopic rod 8 is fixedly installed on the side of the X-axis motion slider 14 away from the X-axis lead screw 15, the movement of the X-axis motion slider 14 can drive the electric servo telescopic rod 8 and the detection head 9 to move in the X-axis direction, thereby realizing the detection of different X-axis coordinate positions of the touch screen.

[0052] Through the coordinated operation of the Y-axis moving device 6 and the X-axis moving device 7, the touch detector 4 can achieve precise movement at any position in the plane, thereby comprehensively detecting all areas of the touch screen. When the touch detector 4 moves to the designated detection position above the touch screen, the electric servo telescopic rod 8 begins to operate. The electric servo telescopic rod 8 can extend or retract according to preset commands. In the detection head 9, the two ends of the extension rod 16 are respectively connected to the fixing sleeve 17 and the touch head 18. The fixing sleeve 17 is fixedly connected to the corresponding thread machined on the end of the electric servo telescopic rod 8 via threads. This design not only facilitates the installation and removal of the detection head 9, but also adapts to the detection needs of various types of touch screens by setting different models of detection heads 9. When the electric servo telescopic rod 8 extends, the touch head 18 of the detection head 9 contacts the surface of the touch screen and applies a certain pressure, simulating user touch operation, thereby detecting the touch response performance, sensitivity, and other quality indicators of the touch screen. After the detection is completed, the electric servo telescopic rod 8 retracts, and the detection head 9 leaves the surface of the touch screen, awaiting the next detection command. In summary, this testing device for touch screen production achieves efficient and accurate quality testing of touch screens through the close cooperation of the table 1, positioning plate 3, touch detector 4, and their internal components, providing a reliable guarantee for the production quality of touch screens.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for touch display screen production, comprising a table top (1), characterized in that: The tabletop (1) is provided with a sliding groove (2), and a positioning plate (3) is slidably engaged in the sliding groove (2). The positioning plate (3) is provided with a display screen fixing groove, and a touch detector (4) is provided on one side of the positioning plate (3). 2.The detection device for producing a touch display screen according to claim 1, characterized in that: The touch detector (4) includes a fixed bracket (5), a Y-axis moving device (6), an X-axis moving device (7), an electric servo telescopic rod (8), and a detection head (9). The fixed bracket (5) is welded and fixed on the table (1). The top of the fixed bracket (5) is provided with a device housing. The Y-axis moving device (6) and the X-axis moving device (7) are provided inside the housing. The electric servo telescopic rod (8) is provided below the X-axis moving device (7). The end of the electric servo telescopic rod (8) is connected to the detection head (9). 3.The detection device for producing a touch display screen according to claim 2, characterized in that: The Y-axis moving device (6) includes two sets of Y-axis motion tracks (10), and Y-axis motion sliders (11) are slidably engaged in the two sets of Y-axis motion tracks (10). A Y-axis lead screw (12) is provided on the side of one set of Y-axis motion sliders (11) away from the center, and the movable part of the Y-axis lead screw (12) is welded to the Y-axis motion slider (11).

4. The detection device for producing a touch display screen according to claim 3, characterized in that: The X-axis moving device (7) includes an X-axis motion track (13), an X-axis motion slider (14), and an X-axis lead screw (15). The X-axis motion track (13) and the X-axis lead screw (15) are fixedly installed in the center of the two sets of Y-axis motion sliders (11). The X-axis motion slider (14) is slidably engaged in the X-axis motion track (13). The X-axis motion slider (14) is welded to the movable part of the X-axis lead screw (15). An electric servo telescopic rod (8) is fixedly installed on the side of the X-axis motion slider (14) away from the X-axis lead screw (15).

5. The testing device for touch screen production according to claim 2, characterized in that: The detection head (9) includes an extension rod (16), a fixed sleeve (17) and a touch head (18). The two ends of the extension rod (16) are respectively connected to the fixed sleeve (17) and the touch head (18). The end of the electric servo telescopic rod (8) is machined with a thread corresponding to the fixed sleeve (17). The detection head (9) is fixed to the electric servo telescopic rod (8) by the thread of the fixed sleeve (17).

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