Brightness and color difference detection and correction device for LED display screen

Abstract

The utility model discloses an LED display screen brightness and color difference detection and correction device which comprises a detection table, the top end of the detection table is provided with a base plate, the top end of the base plate is rotatably provided with a lead screw through a support, the outer wall of the lead screw is provided with three piece placing plates through nut pair threads, and the top of each piece placing plate is provided with a piece placing cavity. A side supporting frame is arranged at the top end of the detection table on one side of the base plate, a bearing plate is arranged on the outer wall of the upper end of the side supporting frame, a first limiting rail is arranged at the bottom end of the bearing plate, a rectangular plate is slidably connected to one side of the bottom of the first limiting rail, a second limiting rail is arranged at the bottom end of the rectangular plate, and a linkage seat is slidably connected to the bottom of the second limiting rail; and an L-shaped seat body is arranged at the bottom end of the linkage seat. According to the utility model, not only is the detection and correction efficiency of the brightness and color difference of the LED display screen improved when the detection and correction device is used, but also the purpose of automatically detecting the brightness and color difference of the LED display screen is achieved, and the detection precision of the brightness and color difference of the LED display screen when the detection and correction device is used is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a device for detecting and correcting brightness and color difference of an LED display screen. Background Art

[0002] With the rapid development of LED display technology, it is used more and more widely in various display occasions. However, due to the properties of LED lamp beads themselves, color temperature, usage time and other reasons, LED displays often have problems such as uneven brightness and color, distortion, etc. during long-term use, affecting the display effect. Therefore, the development of a LED display brightness and color difference detection and correction device is of great significance to improving the display effect of the LED display.

[0003] Reference announcement number CN216284232U is a device for detecting and correcting brightness and color difference of an LED display screen, which includes a display screen body, a detection component is arranged on one side of the display screen body, and a support component is arranged on one side of the upper end of the detection component. When the operator detects the display screen, the display screen is installed in the inner cavity of the wrapping mechanism, and the position of the attachment mechanism in the inner cavity of the wrapping mechanism is adjusted. When detecting different positions of the display screen, the color tone correction instrument is placed on the upper end of the display screen and powered on. The operator moves the fixing mechanism to drive the color tone correction instrument to move. When the screen When a certain position of the screen needs to be re-tested or marked, the operator can insert the upper end of the long block into the inner cavity of the block slot, and the lifting block will be placed on the upper end of the block slot, and then re-test or correct the place where the brightness and chromaticity deviation is large, which is convenient for the operator to mark and record. It is more convenient to use and improves the efficiency of detection and correction. According to the above, although the detection and correction device can be well applied, it is usually not convenient to perform multi-station detection and correction on the LED display screen in sequence, making it difficult for the brightness and chromaticity detection efficiency of the LED display screen to reach the established expectations, and it needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting and correcting brightness and color difference of an LED display screen, so as to solve the problem that the detection and correction device proposed in the above background technology can be well applied, but it is usually not convenient to perform multi-station detection and correction on the LED display screen in sequence, making it difficult for the brightness and color difference detection efficiency of the LED display screen to reach the established expectations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting and correcting bright color difference of an LED display screen, comprising a detection platform, a substrate is provided at the top of the detection platform, a screw rod is rotatably installed at the top of the substrate through a bracket, three placement plates are installed on the outer wall of the screw rod through a nut pair thread, a placement cavity is provided at the top of the placement plate, a side support frame is provided at the top of the detection platform on one side of the substrate, a bearing plate is provided on the outer wall of the upper end of the side support frame, a first limit rail is provided at the bottom end of the bearing plate, a rectangular plate is slidably connected to one side of the bottom of the first limit rail, a second limit rail is provided at the bottom of the rectangular plate, a linkage seat is slidably connected to the bottom of the second limit rail, an L-shaped seat body is provided at the bottom of the linkage seat, a lifting drive member is installed at the top of the L-shaped seat body, a detection plate is provided at one end of the lifting drive member away from the L-shaped seat body, a brightness detector is provided at one side of the bottom end of the detection plate, and a color detector is provided at the other side of the bottom end of the detection plate, a control panel is provided at one side of the top of the detection platform through the bracket, and the input end of the single-chip microcomputer inside the control panel is electrically connected to the output end of the brightness detector and the output end of the color detector respectively.

[0006] Preferably, a first motor is installed on one side of the top of the substrate through a bracket, the input end of the first motor is electrically connected to the output end of the single chip microcomputer inside the control panel, and one end of the first motor is connected to one end of the screw rod. The first motor is set to drive the screw rod to rotate.

[0007] Preferably, guide rails are provided at the top ends of the base plates on both sides of the screw rod, and the tops of the guide rails are connected to the bottom ends of the placement plates. The guide rails are provided to limit the movement range of the placement plates.

[0008] Preferably, a telescopic driving member is installed on the top of the carrier plate through a bracket, and the input end of the telescopic driving member is electrically connected to the output end of the single chip microcomputer inside the control panel. The telescopic driving member is arranged to drive the linkage plate to translate.

[0009] Preferably, a linkage plate is provided at one end of the telescopic driving member, and an end of the linkage plate away from the telescopic driving member is connected to the outer wall of the rectangular plate, so that the rectangular plate can be driven to translate through the setting of the linkage plate.

[0010] Preferably, a belt transmission mechanism is provided on one side of the bottom end of the rectangular plate, and an outer wall of one side of the belt transmission mechanism is connected to an outer wall of the linkage seat, so that the linkage seat can be driven to translate through the arrangement of the belt transmission mechanism.

[0011] Preferably, a second motor is installed at the bottom end of the rectangular plate at the position of the belt transmission mechanism through a bracket, the input end of the second motor is electrically connected to the output end of the single-chip microcomputer inside the control panel, and the top end of the second motor is connected to one side of the bottom end of the belt transmission mechanism. The second motor is arranged to drive the belt transmission mechanism to operate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the LED display screen brightness color difference detection and correction device not only improves the detection and correction efficiency of the LED display screen brightness color difference when the detection and correction device is used, but also achieves the purpose of automatically detecting the brightness color difference of the LED display screen, and ensures the detection accuracy of the LED display screen brightness color difference when the detection and correction device is used;

[0013] (1) The first motor drives the screw rod to rotate, so that the placement plate is located on the outer wall of the screw rod and the top of the guide rail to slide. Since three placement plates are provided, the three placement plates carry the LED display screen and are sequentially moved to the bottom of the detection plate, so that the brightness and color difference of the LED display screen can be detected and corrected in multiple positions in sequence, thereby improving the detection and correction efficiency of the brightness and color difference of the LED display screen when the detection and correction device is used;

[0014] (2) Through the setting of the brightness detector and the color detector, the brightness detector is used to detect the brightness value of each area of ​​the LED display screen and transmit the detected brightness value to the control panel, and the color detector is used to detect the color value of each area of ​​the LED display screen and transmit the detected color value to the control panel, thereby achieving the purpose of automatically detecting the brightness and color difference of the LED display screen;

[0015] (3) The second motor drives the belt transmission mechanism to operate, so that the belt transmission mechanism drives the linkage seat to slide at the bottom of the second limit rail, and the position of the detection plate can be adjusted left and right. Then, the linkage plate is driven to translate by the telescopic drive member, so that the linkage plate drives the rectangular plate to slide at the bottom of the first limit rail, and the position of the detection plate can be adjusted forward and backward, so that the brightness detector and the color detector can detect the brightness and color difference of the specified area of ​​the LED display screen, thereby ensuring the detection accuracy of the brightness and color difference of the LED display screen when the detection and correction device is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the utility model from a top view;

[0017] Figure 2 This is a bottom view of the structure of the load-bearing plate of the utility model;

[0018] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0020] In the figure: 1. detection table; 2. base plate; 3. first motor; 4. lead screw; 5. guide rail; 6. mounting plate; 7. mounting cavity; 8. control panel; 9. side support frame; 10. bearing plate; 11. telescopic driving member; 12. linkage plate; 13. second motor; 14. L-shaped seat; 15. lifting driving member; 16. detection plate; 17. brightness detector; 18. color detector; 19. first limit rail; 20. rectangular plate; 21. belt transmission mechanism; 22. second limit rail; 23. linkage seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a device for detecting and correcting the color difference of a LED display screen, comprising a detection platform 1, a substrate 2 is provided at the top of the detection platform 1, a first motor 3 is installed on one side of the top of the substrate 2 through a bracket, an input end of the first motor 3 is electrically connected to an output end of a single chip microcomputer inside a control panel 8, and one end of the first motor 3 is connected to one end of a screw rod 4;

[0023] When in use, the first motor 3 is arranged to drive the screw rod 4 to rotate;

[0024] A screw rod 4 is rotatably mounted on the top of the base plate 2 through a bracket, and guide rails 5 are provided on the top of the base plate 2 on both sides of the screw rod 4. The top of the guide rail 5 is connected to the bottom of the mounting plate 6.

[0025] When in use, the guide rail 5 is arranged to limit the movement range of the mounting plate 6;

[0026] Three mounting plates 6 are installed on the outer wall of the screw rod 4 through the nut pair thread, and a mounting cavity 7 is provided on the top of the mounting plate 6. A side support frame 9 is provided on the top of the detection platform 1 on one side of the substrate 2. A bearing plate 10 is provided on the outer wall of the upper end of the side support frame 9. A telescopic driving member 11 is installed on the top of the bearing plate 10 through a bracket, and the input end of the telescopic driving member 11 is electrically connected to the output end of the single chip microcomputer inside the control panel 8;

[0027] When in use, the telescopic driving member 11 is arranged to drive the linkage plate 12 to translate;

[0028] A linkage plate 12 is provided at one end of the telescopic driving member 11, and an end of the linkage plate 12 away from the telescopic driving member 11 is connected to the outer wall of the rectangular plate 20;

[0029] When in use, the linkage plate 12 is arranged to drive the rectangular plate 20 to translate;

[0030] A first limiting rail 19 is provided at the bottom of the bearing plate 10, a rectangular plate 20 is slidably connected to one side of the bottom of the first limiting rail 19, a belt transmission mechanism 21 is provided on one side of the bottom end of the rectangular plate 20, and an outer wall of one side of the belt transmission mechanism 21 is connected to an outer wall of the linkage seat 23;

[0031] When in use, the belt transmission mechanism 21 is arranged to drive the linkage seat 23 to translate;

[0032] A second motor 13 is installed at the bottom of the rectangular plate 20 at the position of the belt transmission mechanism 21 through a bracket, the input end of the second motor 13 is electrically connected to the output end of the single chip microcomputer inside the control panel 8, and the top end of the second motor 13 is connected to one side of the bottom end of the belt transmission mechanism 21;

[0033] When in use, the second motor 13 is arranged to drive the belt transmission mechanism 21 to operate;

[0034] A second limiting rail 22 is provided at the bottom end of the rectangular plate 20, and a linkage seat 23 is slidably connected to the bottom of the second limiting rail 22. An L-shaped seat body 14 is provided at the bottom end of the linkage seat 23. A lifting drive member 15 is installed on the top of the L-shaped seat body 14. A detection plate 16 is provided at one end of the lifting drive member 15 away from the L-shaped seat body 14. A brightness detector 17 is provided on one side of the bottom end of the detection plate 16, and a color detector 18 is provided on the other side of the bottom end of the detection plate 16. A control panel 8 is provided on one side of the top end of the detection platform 1 through a bracket, and the input end of the single-chip microcomputer inside the control panel 8 is electrically connected to the output end of the brightness detector 17 and the color detector 18 respectively.

[0035] When the embodiment of the present application is used, the LED display screens to be detected are first placed in sequence in the placement cavities 7 on the tops of the three placement plates 6, and the first motor 3 drives the screw rod 4 to rotate, so that the placement plate 6 is located on the outer wall of the screw rod 4 and the top of the guide rail 5 to slide, so as to move the three LED display screens to the bottom of the detection plate 16 in sequence, and then the lifting drive member 15 drives the detection plate 16 to move downward, so that the detection plate 16 drives the brightness detector 17 and the color detector 18 to move downward close to the LED display screen, and then the brightness detector 17 detects the brightness value of each area of ​​the LED display screen, and transmits the detected brightness value to the control panel 8, and the color detector 18 detects the color value of each area of ​​the LED display screen, and transmits the detected color value to the control panel 8, so that the brightness and color of the LED display screen can be automatically adjusted. The difference is detected. If the LED display screen has uneven brightness or color values ​​after the detection, the personnel can maintain and adjust the color value and brightness value of the LED display screen to achieve the purpose of detecting and correcting the LED display screen. Finally, the belt transmission mechanism 21 is driven by the second motor 13 to operate, so that the belt transmission mechanism 21 drives the linkage seat 23 to slide at the bottom of the second limit rail 22, and the position of the detection plate 16 can be adjusted left and right. The linkage plate 12 is driven to translate by the telescopic driving member 11, so that the linkage plate 12 drives the rectangular plate 20 to slide at the bottom of the first limit rail 19, and the position of the detection plate 16 can be adjusted front and back. The brightness detector 17 and the color detector 18 perform brightness and color difference detection on the designated area of ​​the LED display screen, thereby completing the use of the detection and correction device.

Claims

1. A device for detecting and correcting brightness and color difference of an LED display screen, characterized in that: The invention comprises a detection platform (1), wherein a base plate (2) is provided at the top of the detection platform (1), a screw rod (4) is rotatably mounted on the top of the base plate (2) through a bracket, three mounting plates (6) are mounted on the outer wall of the screw rod (4) through a nut pair thread, a mounting cavity (7) is provided on the top of the mounting plate (6), a side support frame (9) is provided at the top of the detection platform (1) on one side of the base plate (2), a bearing plate (10) is provided on the outer wall of the upper end of the side support frame (9), a first limiting rail (19) is provided at the bottom end of the bearing plate (10), a rectangular plate (20) is slidably connected to one side of the bottom of the first limiting rail (19), a second limiting rail (22) is provided at the bottom end of the rectangular plate (20), and the second limiting rail (22) is provided at the bottom end of the rectangular plate (20). The bottom of the limit rail (22) is slidably connected to a linkage seat (23); the bottom end of the linkage seat (23) is provided with an L-shaped seat body (14); the top of the L-shaped seat body (14) is provided with a lifting drive member (15); the end of the lifting drive member (15) away from the L-shaped seat body (14) is provided with a detection plate (16); one side of the bottom end of the detection plate (16) is provided with a brightness detector (17); the other side of the bottom end of the detection plate (16) is provided with a color detector (18); one side of the top end of the detection platform (1) is provided with a control panel (8) through a bracket; the input end of the single chip microcomputer inside the control panel (8) is electrically connected to the output end of the brightness detector (17) and the output end of the color detector (18) respectively.

2. The LED display screen brightness color difference detection and correction device according to claim 1, characterized in that: A first motor (3) is mounted on one side of the top end of the substrate (2) via a bracket, an input end of the first motor (3) is electrically connected to an output end of a single chip microcomputer inside the control panel (8), and one end of the first motor (3) is connected to one end of a lead screw (4).

3. The LED display screen brightness color difference detection and correction device according to claim 1, characterized in that: The top ends of the base plates (2) on both sides of the screw rod (4) are both provided with guide rails (5), and the top ends of the guide rails (5) are connected to the bottom ends of the mounting plates (6).

4. The LED display screen brightness color difference detection and correction device according to claim 1, characterized in that: A telescopic driving component (11) is mounted on the top of the carrier plate (10) via a bracket, and an input end of the telescopic driving component (11) is electrically connected to an output end of a single chip microcomputer inside the control panel (8).

5. The device for detecting and correcting brightness and color difference of an LED display screen according to claim 4, characterized in that: A linkage plate (12) is provided at one end of the telescopic driving member (11), and an end of the linkage plate (12) away from the telescopic driving member (11) is connected to the outer wall of the rectangular plate (20).

6. The LED display screen brightness color difference detection and correction device according to claim 1, characterized in that: A belt transmission mechanism (21) is provided on one side of the bottom end of the rectangular plate (20), and an outer wall on one side of the belt transmission mechanism (21) is connected to an outer wall of a linkage seat (23).

7. The device for detecting and correcting brightness and color difference of an LED display screen according to claim 6, characterized in that: A second motor (13) is mounted on the bottom end of the rectangular plate (20) at the position of the belt transmission mechanism (21) via a bracket; an input end of the second motor (13) is electrically connected to an output end of a single chip microcomputer inside the control panel (8); and a top end of the second motor (13) is connected to one side of the bottom end of the belt transmission mechanism (21).

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