A testing device for liquid crystal screen production

Abstract

The application is suitable for the technical field of liquid crystal screen testing, and provides a testing device for liquid crystal screen production, which comprises a base, a testing plate, a first camera and a second camera, further comprises: a movable transmission mechanism for driving the testing plate to lift and horizontally transmit; a testing adjusting mechanism for testing and adjusting the rotating rod; the first camera and the second camera are used for alternately shooting the liquid crystal screen on the testing plate; and a control box is fixedly installed at one end of the first support frame, used for controlling the movable transmission mechanism, testing and adjusting the testing adjusting mechanism, receiving the current detection image, comparing and identifying the current detection image, the first shooting image and the second shooting image, and recording the current test result. Without detecting and analyzing all pixel points, the liquid crystal screen detection speed is improved, the detection accuracy is ensured, and manual operation is not required during the testing process, thereby reducing the labor cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of liquid crystal screen testing, and particularly relates to a testing device for liquid crystal screen production. BACKGROUND

[0002] As a key component in modern electronic devices, the quality and performance of liquid crystal screens directly affect user experience and the overall performance of the device. Liquid crystal screen testing is a series of performance and quality evaluation activities for liquid crystal displays, aiming to ensure that the quality and performance of liquid crystal screens meet relevant standards and meet the actual needs of users.

[0003] In liquid crystal screen testing, scratch, crack, bright spot and dead point detection are the most basic and important.

[0004] In the prior art, the detection of scratches, cracks, bright spots and dead points on liquid crystal screens usually requires detection and analysis of each pixel point, which is slow and affects the production process, and requires manual operation, increasing labor costs. SUMMARY

[0005] The purpose of the embodiment of the application is to provide a testing device for liquid crystal screen production, which solves the problems in the prior art.

[0006] The embodiment of the application is implemented as follows:

[0007] A testing device for liquid crystal screen production, comprising a base, a test plate, a first camera and a second camera, the base is fixedly installed with a first support frame and a second support frame, the test plate is movably connected with the second support frame, one end of the second support frame is fixedly installed with a fixing sleeve, one side of the fixing sleeve is fixedly installed with a mounting bracket, one end of the mounting bracket is movably installed with a rotating bar, and the testing device for liquid crystal screen production further comprises:

[0008] A movable transmission mechanism is installed between the test plate and the second support frame, and is used to drive the test plate to lift and horizontally transmit;

[0009] A test adjustment mechanism is installed between the rotating bar and the mounting bracket, and is used to test and adjust the rotating bar;

[0010] The first camera and the second camera are installed at both ends of the rotating bar, and are used to alternately shoot the liquid crystal screen on the test plate to obtain a first shooting image and a second shooting image;

[0011] A control box is fixedly installed at one end of the first support frame, used for active transmission control of the active transmission mechanism, test adjustment control of the test adjustment mechanism, receiving a current detection image, comparing and identifying the current detection image, the first shooting image and the second shooting image, and recording a current test result.

[0012] Preferably, the active transmission mechanism specifically comprises:

[0013] An active sleeve is slidingly installed on the second support frame;

[0014] A guide shaft is fixedly connected to the active sleeve at one end;

[0015] A sliding seat is slidingly connected to the guide shaft, and the test plate is fixedly installed on one side of the sliding seat;

[0016] An electric push rod is movably installed on one side of the active sleeve, and an output end of the electric push rod is movably connected to the sliding seat;

[0017] A lifting transmission structure is installed between the active sleeve and the second support frame.

[0018] Preferably, the angle adjustment structure specifically comprises:

[0019] A rack is fixedly installed on one side of the second support frame;

[0020] A gear is in meshing transmission with the rack, and the gear is rotatably installed on the active sleeve, used for driving the active sleeve to lift along the second support frame;

[0021] A first motor is installed on the active sleeve, and the first motor is in transmission connection with the gear;

[0022] A self-locking transmission sub-structure is installed between the first motor and the gear, used for transmission of the gear.

[0023] Preferably, the test adjustment mechanism specifically comprises:

[0024] A support plate is fixedly installed at one end of the mounting frame away from the fixed sleeve;

[0025] A second movable frame is in transmission connection with the support plate;

[0026] A fourth motor is fixedly installed on the second movable frame, and an output end of the fourth motor is fixedly connected to the rotating strip;

[0027] A multi-angle adjusting structure is installed between the support plate and the second movable frame for multi-angle adjustment of the second movable frame.

[0028] Preferably, the multi-angle adjusting structure specifically comprises:

[0029] A worm is rotatably installed on one side of the support plate.

[0030] A second motor, with its output end in transmission connection with one end of the worm.

[0031] A worm wheel, in mesh transmission with the worm.

[0032] A transmission shaft, fixedly connected with the worm wheel, with its two ends fixedly connected with the second movable frame.

[0033] A first movable frame, rotatably connected with the two ends of the transmission shaft, with one end of the first movable frame in transmission connection with the output end of the third motor.

[0034] Preferably, the activity transmission mechanism is controlled, the test adjusting mechanism is controlled, the current detection image is received, the current detection image, the first shooting image and the second shooting image are compared and identified, and the current test result is recorded, specifically including the following steps:

[0035] Test positioning data is acquired.

[0036] The activity transmission mechanism is controlled according to the test positioning data.

[0037] The test adjusting mechanism is controlled.

[0038] An initial shooting image initially shot by the first camera is received, and a current detection image is received.

[0039] The initial shooting image is analyzed to determine test adjusting parameters.

[0040] The test adjusting mechanism is controlled according to the test adjusting parameters.

[0041] The first shooting image and the second shooting image alternately shot by the first camera and the second camera are received.

[0042] The current detection image, the first shooting image and the second shooting image are compared and identified, and the current test result is recorded.

[0043] Preferably, the initial shooting image is analyzed to determine test adjusting parameters, specifically including the following steps:

[0044] cutting the initial display image of the liquid crystal screen from the initial shooting image;

[0045] boundary recognition is performed on the initial display image to determine whether the boundary is symmetrical;

[0046] If the boundary is not symmetrical, record the edge difference data;

[0047] According to the edge difference data, the adjustment analysis is performed to determine the test adjustment parameter.

[0048] Preferably, the comparison and recognition of the current detection image, the first shooting image and the second shooting image specifically includes the following steps:

[0049] The current detection image, the first shooting image and the second shooting image are all divided into a plurality of partial area images, and the area corresponding relationship is recorded;

[0050] The plurality of partial area images are subjected to gray scale processing, and the average gray scale values of the plurality of partial area images are calculated;

[0051] According to the area corresponding relationship, the plurality of average gray scale values are compared;

[0052] If the corresponding three average gray scale values are the same, record that the liquid crystal screen test is qualified.

[0053] Compared with the prior art, the beneficial effects of the present application are:

[0054] The test device for liquid crystal screen production provided by the embodiment of the present application comprises a base, a test plate, a first camera and a second camera, further comprising: a movable transmission mechanism for driving the test plate to lift and horizontally transmit; a test adjustment mechanism for testing and adjusting the rotating bar; the first camera and the second camera are used for alternately shooting the liquid crystal screen on the test plate; a control box is fixedly installed at one end of the first support frame, used for controlling the movable transmission mechanism, controlling the test adjustment mechanism, receiving the current detection image, comparing and recognizing the current detection image, the first shooting image and the second shooting image, and recording the current test result. Without detecting and analyzing all pixel points, the liquid crystal screen detection speed is improved, the detection accuracy is guaranteed, and manual operation is not required during the test process, thereby reducing the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 The three-dimensional structure of the test device for liquid crystal screen production provided by the embodiment of the present application Figure 1 ;

[0056] Figure 2The three-dimensional structure of the test device for liquid crystal screen production provided by the embodiment of the present application Figure 2 ;

[0057] Figure 3 The enlarged view of A provided by the embodiment of the present application

[0058] Figure 4 The installation structure diagram of the test board provided by the embodiment of the present application

[0059] Figure 5 The three-dimensional structure diagram of the test adjusting mechanism provided by the embodiment of the present application

[0060] Figure 6 The partial structure of the test adjusting mechanism provided by the embodiment of the present application Figure 1 ;

[0061] Figure 7 The partial structure of the test adjusting mechanism provided by the embodiment of the present application Figure 2 ;

[0062] Figure 8 The flow chart of the activity transmission control, test adjusting control and comparison identification provided by the embodiment of the present application

[0063] Figure 9 The flow chart of the test adjusting parameter determination provided by the embodiment of the present application

[0064] Figure 10 The flow chart of the comparison identification provided by the embodiment of the present application

[0065] In the drawings: 1, base; 2, first support frame; 3, control box; 4, second support frame; 5, movable sleeve; 6, rack; 7, gear; 8, first motor; 9, electric push rod; 10, guide shaft; 11, test board; 12, sliding seat; 13, fixed sleeve; 14, mounting frame; 15, support plate; 16, second motor; 17, worm; 18, worm gear; 19, transmission shaft; 20, third motor; 21, first movable frame; 22, second movable frame; 23, rotating bar; 24, first camera; 25, second camera; 26, fourth motor. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0067] The specific implementation of the present application is described in detail below in combination with specific embodiments.

[0068] In one embodiment of the present application, asFigures 1 to 5 as shown:

[0069] A test device for liquid crystal screen production, comprising a base 1, a test plate 11, a first camera 24 and a second camera 25, the first support frame 2 and the second support frame 4 are fixedly installed on the base 1, the test plate 11 is movably connected with the second support frame 4, one end of the second support frame 4 is fixedly installed with a fixing sleeve 13, one side of the fixing sleeve 13 is fixedly installed with a mounting bracket 14, one end of the mounting bracket 14 is movably installed with a rotating rod 23, and the test device for liquid crystal screen production further comprises:

[0070] The movable transmission mechanism is installed between the test plate 11 and the second support frame 4, and is used for driving the test plate 11 to ascend and descend and horizontally transmit;

[0071] The test adjusting mechanism is installed between the rotating rod 23 and the mounting bracket 14, and is used for testing and adjusting the rotating rod 23;

[0072] The first camera 24 and the second camera 25 are installed at both ends of the rotating rod 23, and are used for alternately shooting the liquid crystal screen on the test plate 11 to obtain a first shooting image and a second shooting image;

[0073] The control box 3 is fixedly installed at one end of the first support frame 2, and is used for controlling the movable transmission mechanism, controlling the test adjusting mechanism, receiving the current detection image, comparing and identifying the current detection image, the first shooting image and the second shooting image, and recording the current test result.

[0074] In an embodiment of the present application, the upper end surface of the base 1 is fixedly installed with the vertically arranged first support frame 2 and the second support frame 4, the top end of the first support frame 2 is fixedly installed with the control box 3, the test plate 11 is movably installed on the second support frame 4 through the movable transmission mechanism, the top end of the second support frame 4 is fixedly installed with the fixing sleeve 13, the side surface of the fixing sleeve 13 is fixedly installed with the mounting bracket 14, the end of the mounting bracket 14 away from the fixing sleeve 13 is movably installed with the rotating rod 23 through the test adjusting mechanism, and the lower end surface of the rotating rod 23 is fixedly installed with the first camera 24 and the second camera 25 at both ends.

[0075] In operation, after the liquid crystal screen to be tested is placed on the test plate 11 by a mechanical arm or other mechanism, the control box 3 controls the movable transmission mechanism and the test adjusting mechanism, and then receives the current detection image, compares the current detection image with the first and second shooting images in area division, records the current test result, and realizes production test of the liquid crystal screen.

[0076] It can be understood that the current detection image is a detection image input to the liquid crystal screen for detection and display in the current detection process, and the detection image is various and randomly selected in the detection process.

[0077] In another embodiment of the present application, as shown in the drawings: Figures 1 to 7

[0078] The movable transmission mechanism specifically comprises:

[0079] The movable sleeve 5 is slidingly installed on the second support frame 4;

[0080] The guide shaft 10 is fixedly connected to the movable sleeve 5 at one end;

[0081] The sliding seat 12 is slidingly connected to the guide shaft 10, and the test plate 11 is fixedly installed on one side of the sliding seat 12;

[0082] The electric push rod 9 is movably installed on one side of the movable sleeve 5, and the output end of the electric push rod 9 is movably connected to the sliding seat 12;

[0083] The lifting transmission structure is installed between the movable sleeve 5 and the second support frame 4.

[0084] The angle adjusting structure specifically comprises:

[0085] The rack 6 is fixedly installed on one side of the second support frame 4;

[0086] The gear 7 is in meshing transmission with the rack 6, and the gear 7 is rotatably installed on the movable sleeve 5 and used to drive the movable sleeve 5 to lift along the second support frame 4;

[0087] The first motor 8 is installed on the movable sleeve 5, and the first motor 8 is in transmission connection with the gear 7;

[0088] The self-locking transmission sub-structure is installed between the first motor 8 and the gear 7 and is used to transmit the gear 7.

[0089] The test adjusting mechanism specifically comprises: ​

[0090] A mounting frame 14, one end of which is fixedly connected with the fixing sleeve 13;

[0091] A support plate 15, which is fixedly installed at the end of the mounting frame 14 away from the fixing sleeve 13;

[0092] A second movable frame 22, which is in transmission connection with the support plate 15;

[0093] A fourth motor 26, which is fixedly installed on the second movable frame 22;

[0094] A rotating strip 23, which is fixedly connected with the output end of the fourth motor 26, and two ends of the rotating strip 23 are fixedly installed with the first camera 24 and the second camera 25;

[0095] A multi-angle adjusting structure, which is installed between the support plate 15 and the second movable frame 22, and is used for multi-angle adjustment of the second movable frame 22.

[0096] The multi-angle adjusting structure specifically comprises:

[0097] A worm 17, which is rotatably installed on one side of the support plate 15;

[0098] A second motor 16, an output end of which is in transmission connection with one end of the worm 17;

[0099] A worm gear 18, which is in mesh transmission with the worm 17;

[0100] A transmission shaft 19, which is fixedly connected with the worm gear 18, and two ends of the transmission shaft 19 are fixedly connected with the second movable frame 22;

[0101] A first movable frame 21, which is rotatably connected with the two ends of the transmission shaft 19, and one end of the first movable frame 21 is in transmission connection with the output end of the third motor 20.

[0102] In one embodiment of the present application, the upper end face of the base 1 is fixedly provided with a first support frame 2 and a second support frame 4 arranged vertically, the top end of the first support frame 2 is fixedly provided with a control box 3, the side face of the second support frame 4 is fixedly provided with a rack 6 arranged vertically, a movable sleeve 5 is slidingly installed on the second support frame 4, the movable sleeve 5 is fixedly provided with a first motor 8, and a gear 7 is rotatably installed on the movable sleeve 5, the first motor 8 is drivingly connected with the gear 7 through a self-locking transmission sub-structure, the gear 7 is in meshing transmission with the rack 6, one end of a guide shaft 10 is fixedly connected with the side face of the movable sleeve 5, a sliding seat 12 is slidingly installed on the guide shaft 10, the upper end face of the sliding seat 12 is fixedly provided with a test plate 11, an electric push rod 9 is movably installed on the side face of the movable sleeve 5, the output end of the electric push rod 9 is movably connected with one side of the sliding seat 12, the top end of the second support frame 4 is fixedly provided with a fixed sleeve 13, one end of a mounting frame 14 is fixedly installed on the side face of the fixed sleeve 13, the other end of the mounting frame 14 is fixedly provided with a support plate 15, the lower end face of the support plate 15 is rotatably provided with a worm 17, one end of the worm 17 is drivingly connected with the output end of a second motor through a shaft coupling, both ends of the worm 17 are rotatably installed on a first movable frame 21, one end of the first movable frame 21 is drivingly connected with the output end of a third motor 20, the first movable frame 21 is rotatably installed on a transmission shaft 19, the middle part of the transmission shaft 19 is fixedly provided with a worm wheel 18, the worm 17 is in meshing transmission with the worm wheel 18, both ends of a second movable frame 22 are fixedly connected with both ends of the transmission shaft 19, the middle part of the second movable frame 22 is fixedly provided with a fourth motor 26, the output end of the fourth motor 26 is fixedly connected with the middle part of a rotating strip 23, both ends of the lower end face of the rotating strip 23 are fixedly provided with a first camera 24 and a second camera 25.

[0103] It can be understood that the self-locking transmission sub-structure can be composed of a worm and a gear.

[0104] In operation, after the liquid crystal screen to be tested is placed on the test plate 11 by a mechanical arm or other mechanism, the control box 3 controls the first motor 8 to work, so that the first motor 8 drives the gear 7 to rotate through the self-locking transmission substructure, the gear 7 meshes with the rack 6 to drive the movable sleeve 5 to ascend and descend along the second support frame 4, so that the test plate 11 ascends and descends to the required height in the test positioning data, and then the electric push rod 9 is driven to work, the electric push rod 9 drives the sliding seat 12 to slide horizontally along the guide shaft 10, the test plate 11 is driven to move horizontally to the required horizontal position in the test positioning data through the sliding seat 12, then the control box 3 controls the fourth motor 26 to perform initial adjustment, so that the fourth motor 26 drives the rotating strip 23 to rotate, and drives the first camera 24 to rotate to a preset shooting position to perform initial shooting, receives the initial shooting image of the initial shooting of the first camera 24, and receives the current detection image, identifies the initial shooting image from the initial shooting image, and cuts the initial display image of the liquid crystal screen from the initial shooting image, then performs boundary identification on the initial display image, judges whether the boundary is symmetrical or not, records the difference value data of the opposite edges in the case of asymmetrical boundary, and then adjusts and analyzes the test adjustment parameters according to the difference value data of the opposite edges, determines the test adjustment parameters, and drives the second motor 16 and the third motor 20 to work according to the test adjustment parameters, the second motor 16 can drive the worm 17 to rotate, the worm 17 meshes with the worm gear 18 to drive the worm gear 18 to rotate, the worm gear 18 drives the transmission shaft 19 to rotate, and then the second movable frame 22 drives the rotating strip 23 to rotate along the axis of the transmission shaft 19, the third motor 20 can drive the first movable frame 21 to rotate, and then drives the second movable frame 22 and the rotating strip 23 to rotate along the axis of the worm 17, so that the multi-angle adjustment of the rotating strip 23, the first camera 24 and the second camera 25 can be realized, and the rotating strip 23 can be parallel to the upper end face of the liquid crystal screen, then the fourth motor 26 is driven to work, the fourth motor 26 can drive the rotating strip 23 to rotate, so that the first camera 24 and the second camera 25 alternately shoot above the liquid crystal screen, and then the first shooting image and the second shooting image are obtained, the current detection image, the first shooting image and the second shooting image are equally divided into image regions according to the preset image division quantity, a plurality of partial region images are obtained, and the region correspondence relationship is recorded, the plurality of partial region images are subjected to grayscale processing, the average grayscale values corresponding to the plurality of partial region images are calculated, the plurality of average grayscale values are compared according to the region correspondence relationship, and the judgment of the liquid crystal screen test is realized. Specifically, if the corresponding three average grayscale values are the same, it is recorded that the liquid crystal screen test is qualified; if the average grayscale values of the partial region images corresponding to the first shooting image and the second shooting image are the same, but the average grayscale value of the partial region image corresponding to the current detection image is different, it is recorded that the liquid crystal screen test is unqualified.If the average gray scale values of the partial area images corresponding to the first and second captured images are different, the first and second cameras 24 and 25 need to be repaired and tested again.

[0105] It can be understood that, due to the various shapes of the lower end surface of the liquid crystal screen, when placed on the test board 11, the upper end surface of the liquid crystal screen can not be in a horizontal state. Boundary recognition can be performed to determine whether it is in a horizontal state. Specifically, if the lengths of the two boundaries symmetrical to the left and right are the same, and the lengths of the two boundaries symmetrical to the top and bottom are the same, it is determined that the upper end surface of the liquid crystal screen is in a horizontal state, and no test adjustment is needed. If the lengths of the two boundaries symmetrical to the left and right are different, or the lengths of the two boundaries symmetrical to the top and bottom are different, it is determined that the upper end surface of the liquid crystal screen is not in a horizontal state, and test adjustment is needed.

[0106] It can be understood that different image division quantities can be set to adjust the test precision. Specifically, the more the image division quantity, the higher the test precision.

[0107] Specifically, Figure 8 The flowchart of the activity transmission control, test adjustment control, and comparison and identification provided by the embodiment of the present application.

[0108] In an embodiment of the present application, the activity transmission control of the activity transmission mechanism, the test adjustment control of the test adjustment mechanism, and the reception of the current detection image, the comparison and identification of the current detection image, the first captured image, and the second captured image, and the recording of the current test result specifically include the following steps:

[0109] Step S101, obtaining test positioning data;

[0110] Step S102, performing activity transmission control on the activity transmission mechanism according to the test positioning data;

[0111] Step S103, performing initial adjustment control on the test adjustment mechanism;

[0112] Step S104, receiving an initial captured image initially captured by the first camera 24, and receiving a current detection image;

[0113] Step S105, analyzing the initial captured image to determine test adjustment parameters;

[0114] Step S106, performing test adjustment control on the test adjustment mechanism according to the test adjustment parameters;

[0115] Step S107, receiving a first captured image and a second captured image alternately captured by the first camera 24 and the second camera 25;

[0116] Step S108, comparing and identifying the current detection image, the first shooting image and the second shooting image, and recording the current test result.

[0117] Further, Figure 9 The flowchart for determining the test adjustment parameter provided by the embodiment of the present application.

[0118] Specifically, in one embodiment of the present application, the analyzing the initial shooting image to determine the test adjustment parameter specifically includes the following steps:

[0119] Step S1051, intercepting the initial display image of the liquid crystal screen from the initial shooting image;

[0120] Step S1052, performing boundary identification on the initial display image to determine whether the boundary is symmetrical;

[0121] Step S1053, if the boundary is not symmetrical, recording the edge difference data;

[0122] Step S1054, performing adjustment analysis according to the edge difference data to determine the test adjustment parameter.

[0123] Further, Figure 10 The flowchart for performing comparison and identification provided by the embodiment of the present application.

[0124] Specifically, in one embodiment of the present application, the comparing and identifying the current detection image, the first shooting image and the second shooting image to record the current test result specifically includes the following steps:

[0125] Step S1081, dividing the current detection image, the first shooting image and the second shooting image into multiple partial area images, and recording the area corresponding relationship;

[0126] Step S1082, performing gray scale processing on multiple partial area images, and calculating the average gray scale values of multiple partial area images;

[0127] Step S1083, comparing multiple average gray scale values according to the area corresponding relationship;

[0128] Step S1084, if the corresponding three average gray scale values are the same, recording that the liquid crystal screen test is qualified.

[0129] The above only describes the preferred embodiments of the present application and should not be used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A testing device for liquid crystal screen production, comprising a base (1), a test plate (11), a first camera (24) and a second camera (25), characterized in that, The base (1) is fixedly installed with a first support frame (2) and a second support frame (4), the test plate (11) is movably connected with the second support frame (4), one end of the second support frame (4) is fixedly installed with a fixing sleeve (13), one side of the fixing sleeve (13) is fixedly installed with a mounting frame (14), one end of the mounting frame (14) is movably installed with a rotating rod (23), and the liquid crystal screen production testing device further comprises: A movable transmission mechanism is installed between the test plate (11) and the second support frame (4) and is used to drive the test plate (11) to ascend and descend and to horizontally transmit; A test adjusting mechanism is installed between the rotating rod (23) and the mounting frame (14) and is used to test and adjust the rotating rod (23); A first camera (24) and a second camera (25) are installed at two ends of the rotating rod (23) and are used to alternately shoot the liquid crystal screen on the test plate (11) to obtain a first shooting image and a second shooting image; A control box (3) is fixedly installed at one end of the first support frame (2) and is used to control the movable transmission of the movable transmission mechanism, to control the test adjustment of the test adjusting mechanism, to receive a current detection image, to compare and identify the current detection image, the first shooting image and the second shooting image, and to record a current test result; The control of the movable transmission of the movable transmission mechanism, the control of the test adjustment of the test adjusting mechanism, the reception of a current detection image, the comparison and identification of the current detection image, the first shooting image and the second shooting image, and the recording of a current test result specifically include the following steps: Obtain test positioning data; According to the test positioning data, control the movable transmission of the movable transmission mechanism; Control the initial adjustment of the test adjusting mechanism; Receive an initial shooting image initially shot by the first camera (24) and receive a current detection image; Analyze the initial shooting image to determine test adjusting parameters; According to the test adjusting parameters, control the test adjustment of the test adjusting mechanism; Receive a first shooting image and a second shooting image alternately shot by the first camera (24) and the second camera (25); Compare and identify the current detection image, the first shooting image and the second shooting image, and record a current test result; The analysis of the initial shooting image to determine test adjusting parameters specifically include the following steps: From the initial shooting image, intercept an initial display image of the liquid crystal screen; Boundary identification is performed on the initial display image to determine whether the boundary is symmetrical; If the boundary is not symmetrical, record the edge difference value data; According to the edge difference value data, perform adjusting analysis to determine the test adjusting parameters; Specifically, if the lengths of the two boundaries symmetrical to the left and right are the same, and the lengths of the two boundaries symmetrical to the top and bottom are the same, it is determined that the upper end surface of the liquid crystal screen is in a horizontal state, and no test adjustment is needed; if the lengths of the two boundaries symmetrical to the left and right are different, or the lengths of the two boundaries symmetrical to the top and bottom are different, it is determined that the upper end surface of the liquid crystal screen is not in a horizontal state, and test adjustment is needed. The comparing and identifying of the current detection image, the first photographed image and the second photographed image specifically includes the following steps: The current detection image, the first photographed image and the second photographed image are all divided into a plurality of partial area images, and a region corresponding relationship is recorded; The plurality of partial area images are subjected to gray scale processing, and average gray scale values of the plurality of partial area images are calculated; The average gray scale values are compared according to the region corresponding relationship; If the corresponding three average gray scale values are the same, it is recorded that the liquid crystal screen test is qualified; If the average gray scale values of the partial area images corresponding to the first photographed image and the second photographed image are different, the first camera (24) and the second camera (25) need to be repaired, and then the test is re-performed; The current detection image is a detection image input to the liquid crystal screen for detection display in the current detection process. The detection image has multiple types and is randomly selected in the detection process.

2. The test device for liquid crystal panel production according to claim 1, wherein The movable transmission mechanism specifically comprises: A movable sleeve (5) is slidingly installed on the second support frame (4); A guide shaft (10) is fixedly connected to one end of the movable sleeve (5); A sliding seat (12) is slidingly connected to the guide shaft (10), and the test plate (11) is fixedly installed on one side of the sliding seat (12); An electric push rod (9) is movably installed on one side of the movable sleeve (5), and an output end of the electric push rod (9) is movably connected to the sliding seat (12); A lifting transmission structure is installed between the movable sleeve (5) and the second support frame (4).

3. The test apparatus for liquid crystal panel production according to claim 2, wherein The angle adjusting structure specifically comprises: A rack (6) is fixedly installed on one side of the second support frame (4); A gear (7) is in meshing transmission with the rack (6), and the gear (7) is rotatably installed on the movable sleeve (5) and used to drive the movable sleeve (5) to lift along the second support frame (4); A first motor (8) is installed on the movable sleeve (5), and the first motor (8) is in transmission connection with the gear (7); A self-locking transmission sub-structure is installed between the first motor (8) and the gear (7) and is used to transmit the gear (7).

4. The test apparatus for liquid crystal panel production according to claim 1, wherein The test adjusting mechanism specifically comprises: A support plate (15) is fixedly installed on one end of the mounting frame (14) away from the fixed sleeve (13); A second movable frame (22) is in transmission connection with the support plate (15); A fourth motor (26) is fixedly installed on the second movable frame (22), and an output end of the fourth motor (26) is fixedly connected with the rotating rod (23); A multi-angle adjusting structure is installed between the supporting plate (15) and the second movable frame (22), and is used for multi-angle adjusting the second movable frame (22).

5. The test apparatus for liquid crystal panel production according to claim 4, wherein The multi-angle adjusting structure specifically comprises: A worm (17) is rotatably installed on one side of the supporting plate (15); An output end of a second motor (16) is in transmission connection with one end of the worm (17); A worm wheel (18) is in meshing transmission with the worm (17); A transmission shaft (19) is fixedly connected with the worm wheel (18), and two ends of the transmission shaft (19) are fixedly connected with the second movable frame (22); A first movable frame (21) is rotatably connected with the two ends of the transmission shaft (19), and one end of the first movable frame (21) is in transmission connection with an output end of a third motor (20).

Images