A method for detecting optical functional film and liquid crystal module

Abstract

The present invention relates to the technical field of liquid crystal module detection, and discloses a detection method for an optical functional film and a liquid crystal module. A conveying mechanism sends a module to be detected to the bottom of an intelligent control terminal for detection. A collection unit receives reflected light through a first light intensity detector, collects light at a reflection point through a second light intensity detector, and collects light in an environment through an environment light intensity detector to generate first light intensity data GQ1, second light intensity data GQ2, and third light intensity data GQ3. The present invention uses the first light intensity data GQ1, the second light intensity data GQ2, and the third light intensity data GQ3 to calculate a judgment value P that can accurately reflect the surface condition of the module to be detected when it is closed. When the difference between the judgment value P and a threshold value Y exceeds 5%, there is a defect on the surface of the module to be detected, and the defect changes from mirror reflection to diffuse reflection, so that the difference between the judgment value P and the threshold value Y is large, and defect detection is automatically performed.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal module detection, and more specifically to a detection method of an optical functional film and a liquid crystal module. Background Art

[0002] Optical functional film is a type of material used in liquid crystal display chemicals. Its production involves technical issues in the fields of polymer materials, film processing, dyes, adhesives, optics, mechanical equipment and computer automatic control. The liquid crystal module is the display component of the liquid crystal display. The optical functional film needs to be covered on the liquid crystal module to complete the display function of the liquid crystal display. The liquid crystal module is mainly divided into a screen and a backlight assembly. The two parts are assembled together. The backlight assembly emits uniform surface light, which is transmitted to the eyes through the liquid crystal screen to complete the image display work;

[0003] The stability of the quality of the LCD module directly affects the performance and life of the entire LCD display. Therefore, testing the LCD module can evaluate the quality stability of the LCD module and predict its service life, providing a sufficient basis for product performance improvement and quality assurance. In addition, the luminous display performance of the LCD module directly affects the performance quality of the displayed image.

[0004] Nowadays, when testing LCD modules, the optical module itself is usually tested manually. This method is difficult to detect and has poor detection accuracy. In addition, the LCD module itself has two states: luminous display and closed. The manual method can only detect the display module in the closed state. When testing the display module with luminous display, the distance between the human eye and the LCD module is close, which will cause damage to the tester himself. Therefore, the detection accuracy of the current detection method is poor.

[0005] Furthermore, when testing a large LCD module, since the LCD module itself is relatively fragile, if the LCD module slides during testing, there is a possibility that it may come into contact with other objects and be damaged. Also, when the LCD module is being fixed, when the fixing device comes into contact with the display module, there is a possibility that the display module may be damaged by sudden contact and squeezing of each other. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a method for detecting an optical functional film and a liquid crystal module to solve the technical problems raised in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: a method for detecting an optical functional film and a liquid crystal module, comprising the following detection steps:

[0008] Step S1, the limit mechanism fixes the position of the module to be detected, the module to be detected is in a closed state, and the conveying mechanism sends the module to be detected to the bottom of the intelligent control terminal for detection;

[0009] Step S2, the light source is irradiated above the module to be detected, and the collection unit receives the reflected light through the first light intensity detector, collects the light at the reflection point through the second light intensity detector, and collects the light in the environment through the ambient light intensity detector;

[0010] Step S3, the processing unit receives the data in the collection unit, and generates the first light intensity data GQ1, the second light intensity data GQ2 and the third light intensity data GQ3;

[0011] Step S4, the analysis unit receives the data generated in the processing unit and calculates the judgment value P, the central unit receives the judgment value P and compares it with the internal threshold value Y and sends an instruction;

[0012] Step S5, the display unit receives the unqualified instruction, and displays the unqualified area through the display terminal, and the display unit receives the qualified instruction without displaying the area;

[0013] Step S6, the conveying mechanism sends the module to be detected back in reverse, the module to be detected performs image display, the acquisition unit acquires the image data information displayed by the module to be detected through the image detector, and the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing;

[0014] Step S7, the processing unit sends the calculated gray value W to the analysis unit, the analysis unit calculates the total gray value W, the central unit receives the total gray value W and compares it with the internal standard gray value total and sends an instruction.

[0015] In a preferred embodiment, it also includes a detection base, the top of the detection base is fixedly connected to a connecting bracket, the side of the top of the connecting bracket is fixedly connected to an intelligent control terminal, the top of the intelligent control terminal is fixedly connected to a display terminal, the center of the bottom of the intelligent control terminal is fixedly connected to a second light intensity detector, the side of the bottom of the intelligent control terminal away from the connecting bracket is fixedly connected to a light source, the side of the intelligent control terminal is fixedly connected to an ambient light intensity detector, the bottom of the light source is fixedly connected to an image detector, the side of the intelligent control terminal is fixedly connected to a first light intensity detector, the top of the detection base is movably connected to a conveying mechanism, the top of the conveying mechanism is fixedly connected to a limiting mechanism, and a module to be detected is placed on the top of the conveying mechanism, and the intelligent control terminal is provided with a collection unit, a processing unit, an analysis unit, a central unit and a display unit.

[0016] In a preferred embodiment, the conveying mechanism includes a servo motor that can provide power, a threaded rod is fixedly connected to the side of the servo motor, a movable plate is threadedly connected to the side of the threaded rod, and a support platform is fixedly connected to the top of the movable plate.

[0017] In a preferred embodiment, the limiting mechanism includes a connecting shell fixedly connected to the support platform in the conveying mechanism, and the number of the connecting shells is two. The two connecting shells are located at the diagonals of the top of the support platform, and a limiting groove is provided on the side of the connecting shell close to the module to be detected. An electromagnet is fixedly connected in the limiting groove of the connecting shell, and a magnetic slider is movably connected to the side of the electromagnet. A movable slider is fixedly connected to the side of the magnetic slider away from the electromagnet, and a buffer assembly is fixedly connected to the side of the movable slider away from the connecting shell.

[0018] In a preferred embodiment, the buffer assembly includes a right-angle plate fixedly connected to a movable slider, and limiting holes compatible with the limiting sleeve are provided in two side surfaces of the right-angle plate away from the movable slider, a limiting rod is fixedly connected in the limiting hole of the right-angle plate, a supporting spring is provided on the side of the limiting rod, and an avoidance hole compatible with the limiting rod is provided inside the limiting sleeve, and a first buffer plate and a second buffer plate are fixedly connected to the side surfaces of the two right-angle inner limiting sleeves of the right-angle plate, respectively.

[0019] In a preferred embodiment, the display unit divides the module to be detected into fifty areas of equal size. When the module to be detected is in a closed state, the light source illuminates the surface of the module to be detected, the collection unit collects the light reflected by the surface of the module to be detected through a first light intensity detector, the collection unit collects the light on the surface of the module to be detected through a second light intensity detector, the collection unit collects the light in the environment through an ambient light intensity detector, and the collection unit sends all the collected data information to a processing unit, the processing unit receives the data in the collection unit, and the The processing unit receives the light collected by the first light intensity detector in the collection unit and generates the first light intensity data GQ1. The processing unit receives the light collected by the second light intensity detector in the collection unit and generates the second light intensity data GQ2. The processing unit receives the light collected by the ambient light intensity detector in the collection unit and generates the third light intensity data GQ3. The processing unit sends all the generated data to the analysis unit. The analysis unit receives the data generated in the processing unit and calculates the judgment value P. The calculation formula of the judgment value P is, where k1 and k2 are weights, and 0≤k1≤1, 0≤k2≤1.

[0020] In a preferred embodiment, the analysis unit sends the calculated judgment value P to the central unit, the central unit receives the judgment value P and compares it with the internal threshold value Y, when the difference between the judgment value P and the threshold value Y exceeds 5%, the central unit sends an unqualified instruction to the display unit, when the difference between the judgment value P and the threshold value Y is 5% or less, the central unit sends an unqualified instruction to the display unit, when the display unit receives the unqualified instruction, the display unit receives the interval information sent by the unqualified instruction, the display unit displays the unqualified area through the display end, and the display unit does not display the area when receiving the qualified instruction.

[0021] In a preferred embodiment, when the module to be detected is turned on for image display, the light source, the first light intensity detector and the second light intensity detector stop working, the acquisition unit acquires image information of the module to be detected through the image detector, and the acquisition unit sends the acquired image data information to the processing unit, the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing, and the calculation formula for grayscale processing is W=0.3R+0.58G+0.12B, wherein W is the grayscale value after processing, R is a red image, G is a green image, and B is a blue image, and R, G, and B are all within the grayscale value range of 0-255.

[0022] In a preferred embodiment, the processing unit sends the calculated grayscale value W to the analysis unit, the analysis unit calculates the sum of the grayscale values ​​W of each of the fifty areas in the display unit, the analysis unit sends the calculated sum of the grayscale values ​​W to the central unit, the central unit compares the calculated sum of the grayscale values ​​W with the sum of the standard grayscale values ​​within it, when the error between the sum of the grayscale values ​​W and the sum of the standard grayscale values ​​within it exceeds 5%, the central unit sends an unqualified instruction to the display unit, and when the error between the sum of the grayscale values ​​W and the sum of the standard grayscale values ​​within it is within 5%, the central unit sends a qualified instruction to the display unit.

[0023] Technical effects and advantages of the present invention:

[0024] 1. The present invention uses the first light intensity data GQ1, the second light intensity data GQ2 and the third light intensity data GQ3 to calculate the judgment value P, which can accurately reflect the surface condition of the module to be detected when it is closed. When the difference between the judgment value P and the threshold value Y exceeds 5%, there is a defect on the surface of the module to be detected, and the defect is changed from mirror reflection to diffuse reflection, so that the difference between the judgment value P and the threshold value Y is large, and defect detection is automatically performed;

[0025] 2. When the module to be detected of the present invention displays an image, the image detector grayscales the collected image data, and calculates the sum of the grayscale values ​​W in each of the fifty areas in the module to be detected. At this time, the sum of the grayscale values ​​W is compared with the sum of the standard grayscale values. When the error exceeds 5%, the error is large, and it can be determined that there is a problem in the image display of the area, and a rapid detection can be performed;

[0026] 3. When the electromagnet of the present invention is energized in the forward direction, there is a magnetic repulsion force between the electromagnet and the magnetic slider, so the electromagnet drives the movable slider to move toward the module to be detected, thereby fixing the module to be detected. When the movable slider moves toward the module to be detected, the movable slider will drive the buffer assembly to move toward the module to be detected, so the first buffer plate and the second buffer plate will first contact the side of the module to be detected. When the side of the first buffer plate and the second buffer plate contacts the module to be detected, the first buffer plate and the second buffer plate will drive the limit sleeve to move and compress the support spring, thereby starting the buffering effect and avoiding damage to the side of the module to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the detection structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the overall structure of the conveying mechanism of the present invention.

[0030] Figure 4 It is a schematic diagram of the overall structure of the limiting mechanism of the present invention.

[0031] Figure 5 It is a schematic diagram of the exploded structure of the limiting mechanism of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure of the buffer component of the present invention.

[0033] Figure 7 It is a schematic diagram of the internal structure of the buffer component of the present invention.

[0034] Figure 8 It is a schematic diagram of the structure of the internal units of the intelligent control terminal of the present invention.

[0035] Fig. 9 It is a schematic diagram of the detection method of the present invention.

[0036] The accompanying drawings are marked as follows: 1. detection base; 2. connecting bracket; 3. intelligent control terminal; 4. conveying mechanism; 401. servo motor; 402. threaded rod; 403. moving plate; 404. support table; 5. limiting mechanism; 501. connecting shell; 502. moving slider; 503. buffer assembly; 5031. right-angle plate; 5032. first buffer plate; 5033. second buffer plate; 5034. limiting sleeve; 5035. limiting rod; 5036. supporting spring; 504. electromagnet; 505. magnetic slider; 6. module to be detected; 7. display terminal; 8. light source; 9. first light intensity detector; 10. second light intensity detector; 11. image detector; 12. ambient light intensity detector. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The detection method of an optical functional film and a liquid crystal module involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0038] Reference Figure 1 , Figure 8 and Fig. 9 The present invention provides a method for detecting an optical functional film and a liquid crystal module, comprising the following detection steps:

[0039] Step S1, placing the module to be detected 6 in two limiting mechanisms 5, the limiting mechanisms 5 are activated to fix the position of the module to be detected 6, after the module to be detected 6 is fixed, the conveying mechanism 4 sends the module to be detected 6 to the bottom of the intelligent control terminal 3 for detection;

[0040] Step S2, when the module to be detected 6 is in the closed state, the light source 8 is irradiated above the module to be detected 6, the collection unit receives the reflected light through the first light intensity detector 9, collects the light at the reflection point through the second light intensity detector 10, and collects the light in the environment through the ambient light intensity detector 12;

[0041] Step S3, the processing unit receives the data in the collection unit, and generates the first light intensity data GQ1, the second light intensity data GQ2 and the third light intensity data GQ3;

[0042] Step S4, the analysis unit receives the data generated in the processing unit and calculates the judgment value P, the central unit receives the judgment value P and compares it with the internal threshold value Y, when the difference between the judgment value P and the threshold value Y exceeds 5%, the central unit sends a failure instruction to the display unit, when the difference between the judgment value P and the threshold value Y is within 5%, the central unit sends a failure instruction to the display unit;

[0043] Step S5, the display unit receives the unqualified instruction, and displays the unqualified area through the display terminal 7, and does not display the area when the display unit receives the qualified instruction;

[0044] Step S6, the conveying mechanism 4 sends the module to be detected 6 back in reverse, the module to be detected 6 displays an image, the acquisition unit acquires the image data information displayed by the module to be detected 6 through the image detector 11, and the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing;

[0045] Step S7, the processing unit sends the calculated grayscale value W to the analysis unit, the analysis unit calculates the total grayscale value W, the central unit receives the total grayscale value W and compares it with the internal standard grayscale value total. When the error between the total grayscale value W and the internal standard grayscale value total exceeds 5%, the central unit sends an unqualified instruction to the display unit, otherwise it sends a qualified instruction to the display unit.

[0046] In the embodiment of the present application, when testing the module 6 to be tested, the module 6 to be tested is divided into two states: closed and displayed. When the module 6 to be tested is in the closed state, the light reflected by it is detected to determine whether there are defects on its surface. When the display state of the module 6 to be tested is tested, the image displayed by the module 6 to be tested is grayed and the processed grayscale value W is comprehensively compared with the sum of the standard grayscale values ​​inside it to understand whether it can accurately display the image. Therefore, the present application has higher accuracy when performing detection.

[0047] Reference Figure 1, a method for detecting an optical functional film and a liquid crystal module, further comprising a detection base 1, wherein the top of the detection base 1 is fixedly connected to a connecting bracket 2, the side of the top of the connecting bracket 2 is fixedly connected to an intelligent control terminal 3, the top of the intelligent control terminal 3 is fixedly connected to a display terminal 7, the center of the bottom of the intelligent control terminal 3 is fixedly connected to a second light intensity detector 10, the side of the bottom of the intelligent control terminal 3 away from the connecting bracket 2 is fixedly connected to a light source 8, the side of the intelligent control terminal 3 is fixedly connected to an ambient light intensity detector 12, the bottom of the light source 8 is fixedly connected to an image detector 11, the side of the bottom of the intelligent control terminal 3 away from the light source 8 is fixedly connected to a first light intensity detector 9, the top of the detection base 1 is movably connected to a conveying mechanism 4, the top of the conveying mechanism 4 is fixedly connected to a limiting mechanism 5, and a module to be detected 6 is placed on the top of the conveying mechanism 4, and the intelligent control terminal 3 is provided with a collection unit, a processing unit, an analysis unit, a central unit and a display unit.

[0048] In the embodiment of the present application, when the light source 8 is illuminating, the light sent by the light source 8 will be emitted to the first light intensity detector 9 through the module to be detected 6, and the side of the light source 8 close to the first light intensity detector 9 is provided with a mirrored forty-five-degree inclined plane, so that the two are guaranteed to correspond to each other, and the second light intensity detector 10 is located at the center of the light source 8 and the first light intensity detector 9. The second light intensity detector 10 can block the light directly irradiated by the light source 8 to the first light intensity detector 9, so that the light received by the first light intensity detector 9 is the reflected light of the module to be detected 6, thereby ensuring the accuracy of the detection.

[0049] Reference Figure 3 The conveying mechanism 4 includes a servo motor 401 that can provide power, a threaded rod 402 is fixedly connected to the side of the servo motor 401, a movable plate 403 is threadedly connected to the side of the threaded rod 402, and a support platform 404 is fixedly connected to the top of the movable plate 403.

[0050] In the embodiment of the present application, when the servo motor 401 controls the threaded rod 402 to rotate, the movable plate 403 will move on the surface of the threaded rod 402, and as the threaded rod 402 rotates forward and reverse, the movable plate 403 can perform different movements. Therefore, after the support platform 404 sends the module to be detected 6 to the bottom of the intelligent control terminal 3 for detection, the module to be detected 6 can be moved in the opposite direction from the bottom of the intelligent control terminal 3. When the module to be detected 6 moves to the bottom of the intelligent control terminal 3, one side of its surface is detected, and when it moves away from the bottom of the intelligent control terminal 3, another detection is performed. These two detections are respectively performed when the module to be detected 6 is closed and when the module to be detected 6 is displayed.

[0051] Reference Figure 4-Figure 7The limiting mechanism 5 includes a connecting shell 501 fixedly connected to the support platform 404 in the conveying mechanism 4. The number of the connecting shells 501 is two. The two connecting shells 501 are located at the diagonal positions of the top of the support platform 404. The connecting shells 501 are provided with limiting grooves on the sides of the connecting shells 501 close to the module to be detected 6. An electromagnet 504 is fixedly connected in the limiting groove of the connecting shell 501. A magnetic slider 505 is movably connected to the side of the electromagnet 504. A movable slider 502 is fixedly connected to the side of the magnetic slider 505 away from the electromagnet 504. A buffer component is fixedly connected to the side of the movable slider 502 away from the connecting shell 501. 503, the buffer assembly 503 includes a right-angle plate 5031 fixedly connected to the moving slider 502, and the two side surfaces of the right-angle plate 5031 away from the moving slider 502 are provided with limiting holes adapted to the limiting sleeve 5034, a limiting rod 5035 is fixedly connected to the limiting hole of the right-angle plate 5031, and a supporting spring 5036 is provided on the side of the limiting rod 5035, and an avoidance hole adapted to the limiting rod 5035 is provided inside the limiting sleeve 5034, and the sides of the two right-angle inner limiting sleeves 5034 of the right-angle plate 5031 are respectively fixedly connected with the first buffer plate 5032 and the second buffer plate 5033.

[0052] In the embodiment of the present application, when the electromagnet 504 is energized in the forward direction, there is a magnetic repulsion force between the electromagnet 504 and the magnetic slider 505, so the electromagnet 504 drives the movable slider 502 to move toward the module to be detected 6, thereby fixing the module to be detected 6. When the movable slider 502 moves toward the module to be detected 6, the movable slider 502 will drive the buffer assembly 503 to move toward the module to be detected 6, so the first buffer plate 5032 and the second buffer plate 5033 will first contact the side of the module to be detected 6. When the sides of the first buffer plate 5032 and the second buffer plate 5033 are in contact with the module to be detected 6, the first buffer plate 5032 and the second buffer plate 5033 will drive the limiting sleeve 5034 to move and compress the support spring 5036, thereby starting the buffering effect and avoiding damage to the side of the module to be detected 6.

[0053] Reference Figure 8The display unit divides the module to be detected 6 into fifty areas of equal size. When the module to be detected 6 is in a closed state, the light source 8 illuminates the surface of the module to be detected 6. The collection unit collects the light reflected by the surface of the module to be detected 6 through the first light intensity detector 9. The collection unit collects the light on the surface of the module to be detected 6 through the second light intensity detector 10. The collection unit collects the light in the environment through the ambient light intensity detector 12, and the collection unit sends all the collected data information to the processing unit. The processing unit receives the data in the collection unit, and the processing unit receives the light collected by the first light intensity detector 9 in the collection unit and generates the first light intensity data GQ1. The processing unit receives the light collected by the second light intensity detector 10 in the collection unit to generate the second light intensity data GQ2. The processing unit receives the light collected by the ambient light intensity detector 12 in the collection unit to generate the second light intensity data GQ2. The third light intensity data GQ3 is generated, and the processing unit sends all the generated data to the analysis unit. The analysis unit receives the data generated in the processing unit and calculates the judgment value P. The calculation formula of the judgment value P is, wherein k1 and k2 are weights, and 0≤k1≤1, 0≤k2≤1. The analysis unit sends the calculated judgment value P to the central unit. The central unit receives the judgment value P and compares it with the internal threshold value Y. When the difference between the judgment value P and the threshold value Y exceeds 5%, the central unit sends an unqualified instruction to the display unit. When the difference between the judgment value P and the threshold value Y is within 5%, the central unit sends an unqualified instruction to the display unit. When the display unit receives the unqualified instruction, the display unit receives the interval information sent by the unqualified instruction. The display unit displays the unqualified area through the display terminal 7. The display unit does not display the area when it receives the qualified instruction.

[0054] In the embodiment of the present application, the module to be detected 6 is in a closed state. At this time, the surface of the module to be detected 6 is a mirror. When light is irradiated on the surface of the module to be detected 6, the light will be reflected by a mirror. If there is a defect on the surface of the module to be detected 6, the defect cannot be reflected by a mirror, but will be diffusely reflected. Therefore, when the light of the light source 8 is emitted through the module to be detected 6 to the location of the first light intensity detector 9, the light intensity received by the first light intensity detector 9 is different. In addition, the present application takes into account the influence of the external light intensity, so the light in the environment is collected, that is, the third light intensity GQ3. In order to avoid possible errors when the first light intensity detector 9 is used alone for detection, the light intensity at the reflection position is collected by the second light intensity detector 10, that is, the second light intensity GQ2. The judgment value P calculated using these three types of data is more accurate. When the difference between the judgment value P and the threshold value Y is 5% or less, there is damage on the surface of the module to be detected 6, and the display unit divides the module to be detected 6 into fifty areas of equal size. At this time, it can be quickly understood which area has defects.

[0055] Reference Figure 8 When the module to be detected 6 is turned on for image display, the light source 8, the first light intensity detector 9 and the second light intensity detector 10 stop working, the acquisition unit acquires the image information of the module to be detected 6 through the image detector 11, and the acquisition unit sends the acquired image data information to the processing unit, the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing, and the calculation formula for grayscale processing is W=0.3R+0.58G+0.12B, where W is the grayscale value after processing, R is the red image, G is the green image, B is the blue image, and R, G, and B are all between 0-2 55, the processing unit sends the calculated gray value W to the analysis unit, the analysis unit calculates the sum of the gray values ​​W of each of the fifty areas in the display unit, the analysis unit sends the calculated gray value W to the central unit, the central unit compares the calculated gray value W with the internal standard gray value sum, when the error between the gray value W and the internal standard gray value sum exceeds 5%, the central unit sends an unqualified instruction to the display unit, and when the error between the gray value W and the internal standard gray value sum is within 5%, the central unit sends a qualified instruction to the display unit.

[0056] In the embodiment of the present application, when the module to be detected 6 is closed, the defects detected are defects existing on its surface, but there may also be problems with the display components inside it. At this time, its surface meets the standard, so the present application opens the module to be detected 6 and displays an image. At this time, the image detector 11 grays the collected image data, and then calculates the total grayscale value W in each of the fifty areas within the module to be detected 6. At this time, the total grayscale value W is compared with the total standard grayscale value. When the error exceeds 5%, the error is large at this time, and it can be judged that there is a problem when displaying the image in the area. The present application divides the module to be detected 6 into fifty areas instead of one area to avoid the situation where a relatively bright and darker position may be in one area when the detection of one area is large, because there are more images displayed, and finally the unqualified products are detected as qualified products. Moreover, the present application does not compare the overall image of the module to be detected 6 with the standard image, because the calculation process required for comparing the two images is relatively long, which will reduce the overall difficulty of the detection.

[0057] The working principle of the present invention is as follows: before detection, the module 6 to be detected is placed on the support table 404. At this time, the electromagnet 504 is energized in the positive direction, and there is a magnetic repulsion force between the electromagnet 504 and the magnetic slider 505. Therefore, the electromagnet 504 drives the moving slider 502 to move toward the module 6 to be detected. When the moving slider 502 moves toward the module 6 to be detected, the moving slider 502 drives the buffer assembly 503 to move toward the module 6 to be detected. Therefore, the first buffer plate 5032 and the second buffer plate 5033 in the moving slider 502 will first contact the side of the module 6 to be detected. When the side of the first buffer plate 5032 and the second buffer plate 5033 contact the module 6 to be detected, the first buffer plate 5032 and the second buffer plate 5033 will drive the limiting sleeve 5034 to move and compress the supporting spring 5036, thereby starting the buffering effect, avoiding damage to the side of the module 6 to be detected and fixing the module 6 to be detected.

[0058] After the module to be detected 6 is fixed, the module to be detected 6 is in a closed state, the servo motor 401 is started and drives the threaded rod 402 to rotate, and the threaded rod 402 drives the module to be detected 6 to move through the moving plate 403 when rotating, and the closed state of the module to be detected 6 is detected at this time, and the module to be detected 6 moves to the bottom of the intelligent control terminal 3 and passes through the intelligent control terminal 3, and the surface of the module to be detected 6 is completely detected at this time;

[0059] After the module 6 to be detected is detected once, the module 6 to be detected is displayed. At this time, the conveying mechanism 4 controls the threaded rod 402 to rotate in reverse, so that the module 6 to be detected moves in the opposite direction. At this time, the module 6 to be detected will pass through the module 6 to be detected again and be detected. The display end 7 displays the detection result. After the detection, the electromagnet 504 is energized in the reverse direction, and there is a magnetic attraction between the electromagnet 504 and the magnetic slider 505. Therefore, the moving slider 502 and the buffer assembly 503 will leave the module 6 to be detected, and the module 6 to be detected can be removed at this time.

[0060] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting an optical functional film and a liquid crystal module, characterized in that: The following detection steps are included: Step S1, the limiting mechanism (5) fixes the position of the module to be detected (6), the module to be detected (6) is in a closed state, and the conveying mechanism (4) conveys the module to be detected (6) to the bottom of the intelligent control terminal (3) for detection; Step S2, the light source (8) is irradiated above the module to be detected (6), the collection unit collects the light reflected by the surface of the module to be detected (6) through the first light intensity detector (9), collects the light on the surface of the module to be detected (6) through the second light intensity detector (10), and collects the light in the environment through the ambient light intensity detector (12); Step S3, the processing unit receives the data in the collection unit, and generates the first light intensity data GQ1, the second light intensity data GQ2 and the third light intensity data GQ3; Step S4, the analysis unit receives the data generated in the processing unit and calculates the judgment value P, the central unit receives the judgment value P and compares it with the internal threshold value Y and sends an instruction; Step S5, the display unit receives the unqualified instruction, and the display unit displays the unqualified area through the display terminal (7); the display unit receives the qualified instruction and does not display the area; Step S6, the conveying mechanism (4) sends the module to be detected (6) back in the reverse direction, the module to be detected (6) displays an image, the acquisition unit acquires the image data information displayed by the module to be detected (6) through the image detector (11), and the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing; Step S7, the processing unit sends the calculated grayscale value W to the analysis unit, the analysis unit calculates the total of the grayscale values ​​W, the central unit receives the total of the grayscale values ​​W, compares it with the total of the standard grayscale values ​​inside it, and sends an instruction; A detection base (1) is also provided, wherein the top of the detection base (1) is fixedly connected to a connection bracket (2), the side of the top of the connection bracket (2) is fixedly connected to an intelligent control terminal (3), the top of the intelligent control terminal (3) is fixedly connected to a display terminal (7), the center of the bottom of the intelligent control terminal (3) is fixedly connected to a second light intensity detector (10), the side of the bottom of the intelligent control terminal (3) away from the connection bracket (2) is fixedly connected to a light source (8), and the side of the intelligent control terminal (3) is fixedly connected to an ambient light intensity detector ( 12), the bottom end of the light source (8) is fixedly connected to an image detector (11), the side of the bottom end of the intelligent control terminal (3) away from the light source (8) is fixedly connected to a first light intensity detector (9), the top end of the detection base (1) is movably connected to a conveying mechanism (4), the top end of the conveying mechanism (4) is fixedly connected to a limiting mechanism (5), and a module to be detected (6) is placed on the top end of the conveying mechanism (4), and the intelligent control terminal (3) is provided with a collection unit, a processing unit, an analysis unit, a central unit and a display unit; The display unit divides the module to be detected (6) into fifty areas of equal size. When the module to be detected (6) is in a closed state, the light source (8) illuminates the surface of the module to be detected (6). The collection unit collects light reflected by the surface of the module to be detected (6) through a first light intensity detector (9). The collection unit collects light on the surface of the module to be detected (6) through a second light intensity detector (10). The collection unit collects light in the environment through an ambient light intensity detector (12). The collection unit sends all collected data information to a processing unit. element, the processing unit receives data in the collection unit, and the processing unit receives the light collected by the first light intensity detector (9) in the collection unit and generates first light intensity data GQ1, the processing unit receives the light collected by the second light intensity detector (10) in the collection unit and generates second light intensity data GQ2, the processing unit receives the light collected by the ambient light intensity detector (12) in the collection unit and generates third light intensity data GQ3, the processing unit sends all the generated data to the analysis unit, the analysis unit receives the data generated in the processing unit and calculates the judgment value P; The analysis unit sends the calculated judgment value P to the central unit. The central unit receives the judgment value P and compares it with the internal threshold value Y. When the difference between the judgment value P and the threshold value Y exceeds 5%, the central unit sends an unqualified instruction to the display unit. When the difference between the judgment value P and the threshold value Y is within 5%, the central unit sends a qualified instruction to the display unit. When the display unit receives the unqualified instruction, the display unit receives the area information corresponding to the unqualified instruction. The display unit displays the unqualified area through the display terminal (7). When the display unit receives the qualified instruction, it does not display the area. When the module to be detected (6) is turned on for image display, the light source (8), the first light intensity detector (9) and the second light intensity detector (10) stop working, the acquisition unit acquires image information of the module to be detected (6) through the image detector (11), and the acquisition unit sends the acquired image data information to the processing unit, the processing unit receives the image data information sent by the acquisition unit and performs grayscale processing, and the calculation formula for grayscale processing is W=0.3R+0.58G+0.12B, wherein W is the grayscale value after processing, R is a red image, G is a green image, and B is a blue image, and R, G, and B are all within the grayscale value range of 0-255; The processing unit sends the calculated grayscale value W to the analysis unit, the analysis unit calculates the sum of the grayscale values ​​W of each of the fifty areas in the display unit, the analysis unit sends the calculated sum of the grayscale values ​​W to the central unit, the central unit compares the calculated sum of the grayscale values ​​W with the sum of the standard grayscale values ​​within it, when the error between the sum of the grayscale values ​​W and the sum of the standard grayscale values ​​within it exceeds 5%, the central unit sends an unqualified instruction to the display unit, and when the error between the sum of the grayscale values ​​W and the sum of the standard grayscale values ​​within it is within 5%, the central unit sends a qualified instruction to the display unit; The limiting mechanism (5) comprises a connecting shell (501) fixedly connected to a support platform (404) in the conveying mechanism (4), the number of the connecting shells (501) being two, the two connecting shells (501) being located at diagonal positions at the top of the support platform (404), a limiting groove being provided on a side of the connecting shell (501) close to the module to be detected (6), an electromagnet (504) being fixedly connected in the limiting groove of the connecting shell (501), a magnetic slider (505) being movably connected to a side of the electromagnet (504), a movable slider (502) being fixedly connected to a side of the magnetic slider (505) away from the electromagnet (504), and a buffer assembly (503) being fixedly connected to a side of the movable slider (502) away from the connecting shell (501); The buffer assembly (503) comprises a right-angle plate (5031) fixedly connected to the movable slider (502); two side surfaces of the right-angle plate (5031) away from the movable slider (502) are provided with limiting holes matched with the limiting sleeve (5034); a limiting rod (5035) is fixedly connected to the limiting hole of the right-angle plate (5031); a supporting spring (5036) is provided on the side surface of the limiting rod (5035); a avoiding hole matched with the limiting rod (5035) is provided inside the limiting sleeve (5034); and the side surfaces of the two right-angle inner limiting sleeves (5034) of the right-angle plate (5031) are respectively fixedly connected with a first buffer plate (5032) and a second buffer plate (5033).

2. The method for detecting an optical functional film and a liquid crystal module according to claim 1, characterized in that: The conveying mechanism (4) comprises a servo motor (401) capable of providing power, a threaded rod (402) being fixedly connected to a side surface of the servo motor (401), a movable plate (403) being threadedly connected to a side surface of the threaded rod (402), and a support platform (404) being fixedly connected to a top end of the movable plate (403).

Images