An apparatus for assisting in detecting the gray scale of a mobile phone screen module

Abstract

The utility model discloses a kind of devices for assisting mobile phone screen module gray scale detection, belong to mobile phone gray scale detection technical field, comprising: base frame;The one side of the base frame top is fixed with fixed box, the inner chamber of the fixed box is installed with CCD camera and brightness, chroma tester, two groups of limiting seat for storing mobile phone screen module are movably installed on the base frame, the utility model is conveniently moved to first support plate and second support plate by staggered moving component, it is convenient for first support plate and second support plate to be carried limiting seat alternation formula shift to fixed box, be photographed and detected by CCD camera, while guiding component realizes first support plate and second support plate when staggered realize up-down staggered adjustment, avoid mutual collision, affect the stagger of first support plate and second support plate position and the uniformity of limiting seat height, relative traditional single-station detection, efficiency is doubled directly, can satisfy the demand of mobile phone screen module assembly line detection.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone grayscale detection technology, specifically to a device for assisting in the grayscale detection of mobile phone screen modules. Background Technology

[0002] Grayscale compensation for mobile phone screen modules is essentially about solving the problem of "uneven grayscale" (such as differences in brightness and color accuracy) in screen display. Through algorithm or hardware calibration, each pixel on the screen can present consistent brightness and color performance under the same grayscale instruction. This is an important testing process before mobile phone screen modules leave the factory.

[0003] When performing grayscale detection and grayscale compensation operations on mobile phone screen modules, the mobile phone screen modules need to be installed on the inspection table for inspection one by one. Since it takes a certain amount of time to operate from the inspection of the mobile phone screen module to the end of grayscale compensation, the traditional inspection table usually operates by inspecting one by one, which results in a discontinuous inspection process. At the same time, a lot of time is wasted in the process of loading and unloading the mobile phone screen modules, resulting in a low inspection volume per unit time, which cannot meet the production requirements of the mobile phone screen module production line. If the number of equipment is increased, it will indirectly increase the production cost of the enterprise. Summary of the Invention

[0004] The purpose of this utility model is to provide a device for assisting in grayscale detection of mobile phone screen modules. By moving the first support plate and the second support plate alternately, dual-station misalignment detection is achieved, avoiding the absence of other operations during the detection process of the mobile phone screen module, thereby doubling the detection efficiency and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for assisting in grayscale detection of a mobile phone screen module, comprising: Base frame; A fixed box is fixed to one side of the top of the base frame. A CCD camera and a brightness and colorimetry tester are installed in the inner cavity of the fixed box. Two sets of limiting seats for storing mobile phone screen modules are movably installed on the base frame. A first support plate and a second support plate for installing the limiting seats are respectively installed on the base frame. An interlaced moving component for moving the first support plate and the second support plate in opposite directions is provided in the inner cavity of the base frame. The inner cavity of the base frame is also provided with a guide component for adjusting the up-and-down movement of the second support plate and for adjusting the misalignment of the first support plate.

[0006] Preferably, the staggered movement assembly includes two sets of synchronous pulleys rotatably connected to the inner sidewall of the base frame via bearings. A drive motor is fixed to the outer side of the base frame. The output shaft of the drive motor passes through the base frame and is fixedly connected to the end of one set of synchronous pulleys. The outer side of the synchronous pulleys is connected via a synchronous belt. The inner cavity of the base frame is also provided with a moving plate that drives the second support plate to move synchronously. A connecting block is fixed to the outer side of the moving plate and the first support plate. The connecting block is fixed to the upper and lower sides of the synchronous belt, respectively.

[0007] Preferably, the guide assembly includes a fixed seat fixed to the bottom of the inner cavity of the base frame, the fixed seat having a guide groove recessed downward in the middle, a guide post slidably disposed in the guide groove, the two ends of the guide post extending outward and fixed to a support seat located outside the fixed seat, the support seat penetrating upward through the moving plate and fixed to the bottom of the second support plate.

[0008] Preferably, four sets of sliding sleeves are fixed on the movable plate, and a limiting slide rod is slidably provided in the inner cavity of the sliding sleeve. The top of the limiting slide rod is fixed to the bottom of the second support plate.

[0009] Preferably, two sets of mounting seats are fixed at the bottom of the inner cavity of the base frame on both sides of the fixed seat. Slide rails are installed on the top of the mounting seats and on both sides of the top of the base frame. Slide blocks are slidably arranged on the slide rails. The slide blocks are respectively installed on both sides of the bottom of the first support plate and the movable plate.

[0010] Preferably, two sets of support frames are installed at the rear end of the top of the base frame, and a limiting rod flush with the first support plate and the second support plate is installed on the support frame by nuts.

[0011] Preferably, a precision five-axis adjustment platform is installed on the top of the first support plate and the second support plate, the top of the precision five-axis adjustment platform is fixedly connected to the bottom of the limiting seat, and a signal generator is installed on the outer side of the base frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model facilitates the relative movement of the first and second support plates through an interleaved moving component, allowing the limiting seats mounted on the first and second support plates to be alternately transferred into the fixed box for CCD camera inspection. The guiding component enables the first and second support plates to be adjusted vertically when interleaved, preventing them from colliding and affecting the interleaving of their positions and the uniformity of the limiting seat height. Compared with traditional single-station inspection, the efficiency is directly doubled, which can meet the needs of mobile phone screen module production line inspection.

[0013] 2. This utility model uses the cooperation of the support frame and the limiting rod to facilitate the limiting of the first support plate and the second support plate, ensuring that they are stably located at the bottom of the fixed box, so as to prevent the position of the limiting seat from shifting. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view cross-sectional three-dimensional structural diagram of the base frame of this utility model; Figure 3 This is a three-dimensional structural diagram of the staggered moving component of this utility model; Figure 4 This is a three-dimensional structural diagram of the second support plate and guide assembly of this utility model.

[0015] The following are the labeling elements in the diagram: 1. Base frame; 2. Fixed box; 3. Limiting seat; 4. First support plate; 5. Second support plate; 6. Interlaced moving assembly; 61. Synchronous pulley set; 62. Drive motor; 63. Synchronous belt; 64. Moving plate; 65. Connecting block; 7. Guide assembly; 71. Fixed seat; 72. Guide groove; 73. Guide column; 74. Support seat; 8. Sliding sleeve; 9. Limiting slide rod; 10. Mounting seat; 11. Slide rail; 12. Slide block; 13. Support frame; 14. Limiting rod; 15. Precision five-axis adjustment platform. Detailed Implementation

[0016] 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.

[0017] This utility model provides, for example Figures 1-4 The device shown is for assisting in grayscale detection of a mobile phone screen module, comprising: Base frame 1; A fixed box 2 is fixed on one side of the top of the base frame 1. A CCD camera and a brightness and colorimetry tester are installed in the inner cavity of the fixed box 2. Two sets of limiting seats 3 for storing mobile phone screen modules are movably installed on the base frame 1. A first support plate 4 and a second support plate 5 for installing the limiting seats 3 are respectively installed on the base frame 1. An interlaced moving component 6 is provided in the inner cavity of the base frame 1 to move the first support plate 4 and the second support plate 5 in opposite directions. The inner cavity of the base frame 1 is also provided with a guide component 7 for adjusting the up and down movement of the second support plate 5 and for adjusting the misalignment of the first support plate 4. The staggered moving component 6 facilitates the relative movement of the first support plate 4 and the second support plate 5, allowing the limiting seats 3 mounted on the first support plate 4 and the second support plate 5 to be alternately transferred into the fixed box 2 for inspection by the CCD camera. The guide component 7 enables the first support plate 4 and the second support plate 5 to be staggered vertically when they are staggered, avoiding collisions that could affect the staggered positions of the first support plate 4 and the second support plate 5 and the uniformity of the height of the limiting seats 3. Compared with traditional single-station inspection, the efficiency is directly doubled, which can meet the needs of mobile phone screen module production line inspection.

[0018] Among them, such as Figure 3 As shown: The staggered movement assembly 6 includes two sets of synchronous pulleys 61 rotatably connected to the inner wall of the base frame 1 via bearings. A drive motor 62 is fixed to the outer side of the base frame 1. The output shaft of the drive motor 62 passes through the base frame 1 and is fixedly connected to the end of one set of synchronous pulleys 61. The outer side of the synchronous pulleys 61 is connected by a synchronous belt 63. The inner cavity of the base frame 1 is also provided with a moving plate 64 that drives the second support plate 5 to move synchronously. The moving plate 64 and the outer side of the first support plate 4 are fixed with connecting blocks 65. The connecting blocks 65 are respectively fixed on the upper and lower sides of the synchronous belt 63. The drive motor 62 drives one set of synchronous pulleys 61 to rotate, and then the synchronous belt 63 is rotated with the cooperation of the other set of synchronous pulleys 61. The upper and lower ends of the synchronous belt 63 move the moving plate 64 and the first support plate 4 synchronously towards each other through the connecting blocks 65. The moving plate 64 carries the second support plate 5 to move synchronously, so that the first support plate 4 and the second support plate 5 exchange positions under the adjustment of the synchronous belt 63.

[0019] Furthermore, such as Figure 4 As shown: The guide assembly 7 includes a fixed seat 71 fixed to the bottom of the inner cavity of the base frame 1. The fixed seat 71 has a guide groove 72 with a downward recess in the middle. A guide post 73 is slidably arranged in the guide groove 72. The two ends of the guide post 73 extend outward and are fixed to support seats 74 located outside the fixed seat 71. The support seats 74 pass through the moving plate 64 upward and are fixed to the bottom of the second support plate 5. By setting the shape of the guide groove 72, it is convenient for the second support plate 5 to move downward before it moves along the guide groove 72 to the middle position and intersects with the first support plate 4, avoiding collision with the first support plate 4. At the same time, the two ends of the guide groove 72 are at the same height, so that the second support plate 5 and the first support plate 4 are at the same height after the misalignment transfer, ensuring that the two sets of limiting seats 3 are in the same position at the bottom of the fixed box 2.

[0020] Preferred, such as Figure 4 As shown: Four sets of sliding sleeves 8 are fixed on the movable plate 64. The inner cavity of the sliding sleeve 8 is slidably provided with a limiting slide rod 9. The top of the limiting slide rod 9 is fixed to the bottom of the second support plate 5. By sliding the limiting slide rod 9 in the sliding sleeve 8, the movable plate 64 can move synchronously with the second support plate 5 through the limiting slide rod 9. At the same time, the second support plate 5 can remain stable when moving up and down relative to the movable plate 64.

[0021] It is worth noting that, such as Figure 3-4 As shown: Two sets of mounting seats 10 are fixed at the bottom of the inner cavity of the base frame 1 on both sides of the fixed seat 71. Slide rails 11 are installed on the top of the mounting seats 10 and on both sides of the top of the base frame 1. Slide blocks 12 are slidably arranged on the slide rails 11. The slide blocks 12 are respectively installed on both sides of the bottom of the first support plate 4 and the moving plate 64. Through the cooperation of the slide rails 11 and the slide blocks 12, the first support plate 4 and the moving plate 64 are conveniently limited, ensuring the stability of the first support plate 4 and the moving plate 64 during the transfer process and preventing shaking.

[0022] In a further preferred embodiment, such as Figure 2 As shown: Two sets of support frames 13 are installed at the rear end of the top of the base frame 1. Limiting rods 14, which are flush with the first support plate 4 and the second support plate 5, are installed on the support frames 13 by nuts. Through the cooperation of the support frames 13 and the limiting rods 14, the first support plate 4 and the second support plate 5 are conveniently limited to ensure that they are stably located at the bottom of the fixed box 2, so as to prevent the position of the limiting seat 3 from shifting. When used in conjunction with the displacement sensor, the accuracy is higher.

[0023] In addition, such as Figure 4 As shown: A precision five-axis adjustment platform 15 is installed on the top of the first support plate 4 and the second support plate 5. The top of the precision five-axis adjustment platform 15 is fixedly connected to the bottom of the limiting seat 3. A signal generator is installed on the outside of the base frame 1. The precision five-axis adjustment platform 15 is used to accurately position the mobile phone screen product under test, ensuring that the CCD camera can accurately capture the screen image and that the screen is in the correct position during the grayscale compensation operation, thereby improving the accuracy of detection and compensation. The signal generator illuminates the mobile phone screen module through the limiting seat 3. It has strong compatibility and can illuminate products of different sizes. At the same time, it can burn the compensation data generated by the analysis system in the CCD camera into the product chip to realize the writing of grayscale compensation data.

[0024] In practical use, within a cleanroom, other auxiliary equipment is used to transfer the mobile phone screen module to be tested onto the limiting seat 3 located at the loading position outside the fixed box 2. Then, the drive motor 62, in conjunction with two sets of synchronous pulleys 61, rotates the synchronous belt 63. Subsequently, two sets of connecting blocks 65 on the synchronous belt 63 respectively drive the first support plate 4 and the moving plate 64 to move towards each other within the base frame 1. Before the first support plate 4 and the second support plate 5 reach the middle position, the second support plate 5 moves down along the guide groove 72 via the support seat 74 and guide column 73, offsetting vertically from the first support plate 4. This causes the limiting seat 3, originally located at the loading position, to enter the detection position below the fixed box 2 under the switching of the first support plate 4 and the second support plate 5. The signal generator illuminates the mobile phone screen module, which needs to display different grayscale levels under the drive of the signal generator. At this time, the brightness and colorimetry tester starts working, measuring the brightness, color, and other parameters corresponding to different grayscale levels of the screen. For example, in a darkroom environment, the LCD module under test displays 32 gray levels. A PR705 luminance and chromaticity meter is used to measure the brightness of each gray level, obtaining a correspondence between gray levels and brightness. This data reflects the current grayscale performance of the screen, providing basic data support for subsequent grayscale compensation. After the luminance and chromaticity meter completes the initial measurements, the CCD camera begins to function. The signal generator continues to drive the screen to switch between different colors, while the CCD camera takes pictures of the screen. The camera's built-in analysis system processes the captured images, analyzing the brightness value of each pixel to determine the normal and poor display areas of the screen. For example, analysis can identify the location and specific details of pixels with uneven brightness or color deviations on the screen, providing more accurate location and brightness information for grayscale compensation. Finally, the signal generator burns the compensation data generated by the CCD camera analysis into the product chip. The signal generator communicates with the CCD camera, receives compensation data from the CCD camera, and then accurately writes this data into the chip of the screen module to realize the actual writing of grayscale compensation data, thereby completing the adjustment of the screen grayscale and improving the display effect of the screen. At the same time, the mobile phone screen module that has completed grayscale compensation is removed from the external limiting seat 3 and reinstalled with the mobile phone screen module to be tested, waiting for the next round of exchange, saving time and improving the efficiency of testing and compensation repair.

[0025] 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 device for assisting in grayscale detection of a mobile phone screen module, characterized in that, include: Base frame (1); A fixed box (2) is fixed on one side of the top of the base frame (1). A CCD camera and a brightness and colorimetry tester are installed in the inner cavity of the fixed box (2). Two sets of limiting seats (3) for storing mobile phone screen modules are movably installed on the base frame (1). A first support plate (4) and a second support plate (5) for installing the limiting seats (3) are respectively installed on the base frame (1). An interlaced moving component (6) for moving the first support plate (4) and the second support plate (5) in opposite directions is provided in the inner cavity of the base frame (1). The inner cavity of the base frame (1) is also provided with a guide component (7) for adjusting the up and down movement of the second support plate (5) and for adjusting the misalignment of the first support plate (4).

2. The device for assisting in grayscale detection of a mobile phone screen module according to claim 1, characterized in that: The staggered moving assembly (6) includes two sets of synchronous pulleys (61) rotatably connected to the inner side wall of the base frame (1) via bearings. A drive motor (62) is fixed to the outer side of the base frame (1). The output shaft of the drive motor (62) passes through the base frame (1) and is fixedly connected to the end of one set of synchronous pulleys (61). The outer side of the synchronous pulleys (61) is connected by a synchronous belt (63). The inner cavity of the base frame (1) is also provided with a moving plate (64) that drives the second support plate (5) to move synchronously. A connecting block (65) is fixed to the outer side of the moving plate (64) and the first support plate (4). The connecting block (65) is fixed to the upper and lower sides of the synchronous belt (63).

3. The device for assisting in grayscale detection of a mobile phone screen module according to claim 1, characterized in that: The guide assembly (7) includes a fixed seat (71) fixed to the bottom of the inner cavity of the base frame (1). The fixed seat (71) has a guide groove (72) with a downward recess in the middle. A guide post (73) is slidably arranged in the guide groove (72). The two ends of the guide post (73) extend outward and are fixed with a support seat (74) located outside the fixed seat (71). The support seat (74) passes through the moving plate (64) upward and is fixed to the bottom of the second support plate (5).

4. The device for assisting in grayscale detection of a mobile phone screen module according to claim 2, characterized in that: Four sets of sliding sleeves (8) are fixed on the movable plate (64). The inner cavity of the sliding sleeve (8) is slidably provided with a limiting slide rod (9). The top of the limiting slide rod (9) is fixed to the bottom of the second support plate (5).

5. The device for assisting in grayscale detection of a mobile phone screen module according to claim 1, characterized in that: The bottom of the inner cavity of the base frame (1) is fixed with two sets of mounting seats (10) on both sides of the fixed seat (71). The top of the mounting seat (10) and both sides of the top of the base frame (1) are equipped with slide rails (11). Slide seats (12) are slidably arranged on the slide rails (11). The slide seats (12) are respectively installed on both sides of the bottom of the first support plate (4) and the moving plate (64).

6. The device for assisting in grayscale detection of a mobile phone screen module according to claim 1, characterized in that: Two sets of support frames (13) are installed at the rear end of the top of the base frame (1). A limiting rod (14) flush with the first support plate (4) and the second support plate (5) is installed on the support frame (13) by a nut.

7. The device for assisting in grayscale detection of a mobile phone screen module according to claim 1, characterized in that: A precision five-axis adjustment platform (15) is installed on the top of the first support plate (4) and the second support plate (5). The top of the precision five-axis adjustment platform (15) is fixedly connected to the bottom of the limiting seat (3). A signal generator is installed on the outside of the base frame (1).

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