Liquid crystal display anti-light leakage detection device and detection method

Abstract

The present invention relates to the field of display detection technology, and specifically to a liquid crystal display anti-light leakage detection device and detection method, the device includes a turntable and a plurality of mounting slots arranged on the turntable, each mounting slot is provided with a bearing assembly; a sealing box is arranged above one of the mounting slots, the sealing box includes a first box body and a second box body, and a detection assembly is arranged on the top of the first box body; a driving assembly is arranged inside the turntable. The driving assembly drives the bearing assembly and the second box body to move relatively along the axis direction of the turntable, so that the turntable can be started without waiting for the bearing assembly to fall completely, thereby reducing the waiting time during the detection process and improving the detection efficiency. When performing continuous detection, through the arrangement of multiple mounting slots and bearing assemblies, the display liquid crystal panel does not need to wait for the material picking process, and the display liquid crystal panel can be continuously placed on the bearing assembly of the turntable, further improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of display detection, and in particular to a liquid crystal display anti-light leakage detection device and a detection method. Background Art

[0002] Limited by the principle of liquid crystal display, almost all mainstream liquid crystal displays currently have certain "light leakage" problems. Serious "light leakage" problems will affect the display quality of liquid crystal displays. Therefore, after the liquid crystal display is produced as a finished product, it is necessary to check whether it has light leakage. In the prior art, all inspections are done manually. Workers adjust the brightness and contrast of the liquid crystal display to the lowest value. Then, in a dark environment, with a black background, use the naked eye to observe whether there is a more obvious whitening phenomenon on the upper, lower, left and right edges of the liquid crystal display, and whether there is light leaking through the gap of the display frame. Finally, the worker gives the corresponding test results based on the observed phenomenon. However, manual inspection will cause certain deviations in the test results due to many factors, affecting production efficiency and increasing the company's production costs. At the same time, manual inspection is inconvenient and slow, workers are easily fatigued, and work efficiency is low.

[0003] Chinese patent CN104460059B discloses an LCD light leakage detection mechanism, in which a lifting adjustment mechanism and a turntable mechanism are respectively mounted on a bottom plate; a carrier device is mounted on the turntable mechanism; a CCD support bottom plate of the CCD adjustment mechanism is connected with nuts on the left and right screw rods of the lifting adjustment mechanism; a CCD support bottom plate of the CCD adjustment mechanism is fixedly connected with an upper sealing box of a sealing box mechanism through four reinforcing ribs; a CCD adjustment mechanism is used to adjust the upper and lower heights of the CCD; a sealing box mechanism is used to ensure that the LCD is always in a closed and light-proof environment; a lifting adjustment mechanism is used to adjust the upper and lower heights of the CCD adjustment mechanism and the sealing box mechanism; in this patent, a pick-up and place station and a detection station are provided on the turntable of the turntable mechanism, and a carrier device is installed on each station, and the two stations can realize continuous detection, and detect whether the LCD product is leaking light by taking pictures with the CCD, but this patent has the following problems

[0004] 1. When the turntable rotates the display to the bottom of the sealed box, it is necessary to wait for the sealed box to fall and cover the display, which increases the waiting time and prolongs the detection time; 2. Since both taking away and placing the display are located on the pick-and-place station, there is time to wait for the display to move. During continuous detection, there is still a problem of waiting for detection, which further prolongs the detection time. Summary of the invention

[0005] In view of the above problems, a liquid crystal display anti-light leakage detection device and detection method are provided. The present invention drives the bearing assembly and the second box to move relative to each other along the axial direction of the turntable through a driving assembly, so that the turntable can be started without waiting for the bearing assembly to completely fall, thereby reducing the waiting time during the detection process and improving the detection efficiency. When performing continuous detection, through the arrangement of multiple installation slots and bearing assemblies, the display liquid crystal panel does not need to wait for the material retrieval process, and the display liquid crystal panel can be continuously placed on the bearing assembly of the turntable, further improving the detection efficiency.

[0006] In order to solve the problems of the prior art, the present invention provides a liquid crystal display anti-light leakage detection device, comprising a turntable, on which a plurality of mounting grooves equidistantly surrounding the axis of the turntable are arranged, each mounting groove being provided with a bearing assembly that can move along the axis direction of the turntable; a sealing box is arranged above one of the mounting grooves, the sealing box comprising a fixed first box body and a second box body sleeved on the bottom of the first box body, the second box body being able to slide along the first box body; a detection assembly for performing light leakage detection on a liquid crystal panel of the display is arranged on the top of the first box body; a driving assembly for driving the bearing assembly and the second box body to move is arranged inside the turntable, the driving assembly being used to make the bearing assembly extend into the interior of the sealing box when the bearing assembly moves to the bottom of the sealing box, and the second box body remains stationary; when the bearing assembly moves away from the sealing box along with the turntable, the bearing assembly and the second box body slide relatively along the axis direction of the turntable.

[0007] Preferably, the bearing assembly includes a bearing plate, a fixed plate and four connecting rods, the four connecting rods are all in a vertical state and are respectively fixedly connected to the four end corners between the bearing plate and the fixed plate, and a mounting seat matching the four connecting rods is provided at the bottom of the mounting groove, and the connecting rods are sleeved in the mounting seat and can be slidably connected thereto.

[0008] Preferably, a fixed cylinder is provided below the turntable, the driving assembly includes a driving frame that can move along the axial direction of the turntable, and the driving frame is located below the sealing box, and a transmission plate parallel to the fixed plate is provided below the fixed plate and close to one end of the inner wall of the fixed cylinder, and a connecting groove matching the transmission plate is provided on the driving frame, and when the turntable drives the bearing assembly to move below the sealing box, the transmission plate will be inserted into the connecting groove.

[0009] Preferably, the driving assembly also includes a rotating shaft, a cam and a transmission block. The rotating shaft is rotatably arranged on the outer wall of the fixed cylinder in a horizontal state. The cam is sleeved on the rotating shaft. The transmission block is fixedly connected to a side of the second box body close to the cam, and the transmission block slides with the cam.

[0010] Preferably, the driving assembly also includes a gear, a rack and a one-way bearing. A sliding rod passing through the fixed cylinder is provided on the driving frame. A mounting plate is provided on the end of the sliding rod away from the driving frame. The rack is fixedly connected to the mounting plate in a vertical state. The one-way bearing is sleeved on the rotating shaft, the gear is sleeved on the one-way bearing, and the gear is meshingly connected with the rack.

[0011] Preferably, a connecting plate is provided between the transmission plate and the fixed plate, a positioning groove is provided on the connecting plate, and a positioning block which can move along the radial direction of the turntable is provided on the driving frame.

[0012] Preferably, a power supply unit for supplying power to the liquid crystal panel of the display is provided on the carrier plate.

[0013] Preferably, a plurality of adsorption holes arranged in a rectangular array are provided on the carrier plate, an air suction box interconnected with the plurality of adsorption holes is provided below the carrier plate, and an air path connected to an external air source is provided at the bottom of the air suction box.

[0014] Preferably, an adjustment frame capable of driving the detection assembly to rise and fall is provided on the top of the sealing box.

[0015] A method for detecting light leakage prevention of a liquid crystal display, applied to any one of the above-mentioned devices for detecting light leakage prevention of a liquid crystal display, comprises the following steps:

[0016] S1. Place the LCD panel to be tested on a bearing assembly of a mounting slot beside the sealed box, and drive the bearing assembly on the mounting slot to move toward the side with the sealed box until the mounting slot is rotated to the bottom of the sealed box;

[0017] S2, driving the bearing assembly to move along the axis direction of the turntable through the driving assembly, so that the display liquid crystal panel can be extended into the interior of the sealed box by the bearing assembly, and the detection assembly is used to detect it until the detection is completed;

[0018] S3. After the detection is completed, the driving assembly drives the bearing assembly and the second box to move relative to each other along the axis direction of the turntable, so that the second box moves up and the bearing assembly moves down until it is reset. At the same time, the turntable drives the bearing assembly to rotate, so that the bearing assembly rotates to the other side of the sealed box to take the display liquid crystal panel after the detection is completed;

[0019] S4, repeat steps S1, S2 and S3 until all display LCD panels are tested.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention drives the bearing assembly and the second box body to move relatively along the axis direction of the turntable through the driving assembly, and avoids the bearing assembly and the display liquid crystal panel that have not fallen yet by moving the second box body upward. In this way, the turntable can be started without waiting for the bearing assembly to fall completely, thereby reducing the waiting time during the detection process and improving the detection efficiency. When performing continuous detection, the display liquid crystal panel does not need to wait for the material retrieval process through the arrangement of multiple installation slots and bearing assemblies, and the display liquid crystal panel can be continuously placed on the bearing assembly of the turntable, further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The invention is a three-dimensional structural schematic diagram of a liquid crystal display anti-light leakage detection device.

[0023] Figure 2 The invention is a three-dimensional structural schematic diagram of a turntable and a mounting slot in a liquid crystal display anti-light leakage detection device.

[0024] Figure 3 The invention discloses a three-dimensional structural diagram of a turntable, a mounting tube and a second box in a liquid crystal display anti-light leakage detection device.

[0025] Figure 4 The invention is an exploded view of a sealing box and a bearing assembly in a liquid crystal display anti-light leakage detection device.

[0026] Figure 5 The present invention is a three-dimensional structural schematic diagram of a middle detection component of a liquid crystal display anti-light leakage detection device.

[0027] Figure 6 A schematic diagram of the three-dimensional structure of a carrier component in a liquid crystal display anti-light leakage detection device Figure 1 .

[0028] Figure 7 A schematic diagram of the three-dimensional structure of a carrier component in a liquid crystal display anti-light leakage detection device Figure 2 .

[0029] Figure 8 A schematic diagram of the three-dimensional structure of a drive frame in a liquid crystal display anti-light leakage detection device Figure 1 .

[0030] Fig. 9 A schematic diagram of the three-dimensional structure of a drive frame in a liquid crystal display anti-light leakage detection device Figure 2 .

[0031] Fig.10 The invention discloses a cross-sectional structural diagram of a liquid crystal display anti-light leakage detection device.

[0032] Fig.11 yes Figure 3 Enlarged view of point A in the middle.

[0033] The numbers in the figure are:

[0034] 1-turntable; 11-mounting slot; 111-mounting seat; 12-carrying assembly; 121-carrying plate; 1211-power supply unit; 1212-adsorption hole; 1213-air suction box; 122-fixing plate; 1221-transmission plate; 1222-connecting plate; 12221-positioning slot; 123-connecting rod; 13-driving assembly; 131-driving frame; 1311-connecting slot; 1312-pulley; 1313-expansion; 1314-sliding rod; 1315-mounting plate; 1316- Rack; 1317-support plate; 13171-positioning block; 13172-signal receiver; 13173-sensor; 132-rotating shaft; 1321-one-way bearing; 1322-gear; 133-cam; 14-fixed cylinder; 141-slide; 2-sealed box; 21-first box body; 22-second box body; 221-transmission block; 23-detection component; 231-adjusting frame; 2311-adjusting plate; 2312-limiting plate; 2313-guide rod; 3-display LCD panel. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figures 1 to 5 and Fig.10 As shown: a liquid crystal display anti-light leakage detection device, comprising a turntable 1, on which a plurality of mounting grooves 11 equidistantly surrounding the axis of the turntable 1 are arranged, each mounting groove 11 is provided with a bearing assembly 12 that can move along the axis direction of the turntable 1; a sealed box 2 is arranged above one of the mounting grooves 11, the sealed box 2 comprises a fixed first box body 21 and a second box body 22 sleeved on the bottom of the first box body 21, and the second box body 22 can slide along the first box body 21; a detection assembly 23 for performing light leakage detection on the display liquid crystal panel 3 is arranged on the top of the first box body 21; a driving assembly 13 for driving the bearing assembly 12 and the second box body 22 to move is arranged inside the turntable 1, and the driving assembly 13 is used to make the bearing assembly 12 extend into the inside of the sealed box 2 when the bearing assembly 12 moves to the bottom of the sealed box 2, and the second box body 22 remains stationary; when the bearing assembly 12 moves away from the sealed box 2 along the turntable 1, the bearing assembly 12 and the second box body 22 slide relatively along the axis direction of the turntable 1.

[0037] The number of the mounting slots 11 is at least three. First, the display liquid crystal panel 3 to be detected is placed on the bearing component 12 of a mounting slot 11 beside the sealing box 2, and the bearing component 12 will rotate toward the side with the sealing box 2 along with the rotation direction of the turntable 1. The rotation of the turntable 1 drives multiple mounting slots 11 to rotate around its axis direction, so that the display liquid crystal panel 3 is driven to rotate by the bearing component 12 in the mounting slot 11, so that the display liquid crystal panel 3 can be rotated to the bottom of the sealing box 2 along with the bearing component 12. It should be noted that there is a gap between the top surface of the bearing component 12 and the top surface of the turntable 1. The gap is used to place the display liquid crystal panel 3, which is convenient for positioning the display liquid crystal panel 3. At the same time, when the turntable 1 rotates to the bottom of the sealing box 2, there will be no interference between the two. At this time, the driving component 13 drives the bearing component 12 to move along the axis direction of the turntable 1, so that the display liquid crystal panel 3 can be extended into the interior of the sealing box 2 by the bearing component 12, and the external light source is blocked by the sealing box 2, which is convenient for the detection component 23 to detect the display liquid crystal panel 3 is detected to improve the efficiency of the detection. When the detection is completed, the driving component 13 will drive the bearing component 12 and the second box body 22 to move relatively along the axis direction of the turntable 1, so that the second box body 22 moves up, and the bearing component 12 moves down until it is reset. In this way, the turntable 1 can be started without waiting for the bearing component 12 to fall completely, thereby reducing the waiting time during the detection process and improving the efficiency of the detection. The upward movement of the second box body 22 is used to avoid the bearing component 12 and the display liquid crystal panel 3 that have not fallen yet. Then the turntable 1 will drive the display liquid crystal panel 3 on the bearing component 12 to continue to rotate around the axis of the turntable 1, so that the display liquid crystal panel 3 rotates to the other side of the sealed box 2. At this time, the display liquid crystal panel 3 after the detection is completed can be picked up, thereby completing the entire detection process. When performing continuous detection, through the arrangement of multiple mounting slots 11 and the bearing component 12, the display liquid crystal panel 3 does not need to wait for the material picking process, and the display liquid crystal panel 3 can be continuously placed on the bearing component 12 of the turntable 1, further improving the efficiency of the detection.

[0038] like Figures 2 to 7 and Fig.10 As shown: the bearing assembly 12 includes a bearing plate 121, a fixing plate 122 and four connecting rods 123, the four connecting rods 123 are all in a vertical state and fixedly connected to the four end corners between the bearing plate 121 and the fixing plate 122, and a mounting seat 111 matching the four connecting rods 123 is provided at the bottom of the mounting groove 11, and the connecting rod 123 is sleeved in the mounting seat 111 and can be slidably connected thereto.

[0039] By setting the mounting seat 111 and the connecting rod 123, the bearing assembly 12 can move along the axial direction of the connecting rod 123 while rotating with the turntable 1, the bearing plate 121 is used to place the display liquid crystal panel 3, the fixing plate 122 is used to support the connecting rod 123 and the bearing plate 121, and the fixing plate 122 has a limiting function, which is convenient for the driving assembly 13 to drive the fixing plate 122, so that the fixing plate 122 can drive the connecting rod 123 and the bearing plate 121 to move, so that the bearing assembly 12 can drive the display liquid crystal panel 3 to extend into the sealing box 2, so that the sealing box 2 can block the external light source, thereby improving the detection accuracy and detection efficiency of the light leakage detection of the display liquid crystal panel 3.

[0040] like Figures 2 to 10 As shown: a fixed cylinder 14 is arranged below the turntable 1, the driving assembly 13 includes a driving frame 131 which can move along the axial direction of the turntable 1, and the driving frame 131 is located below the sealing box 2, and a transmission plate 1221 parallel to the inner wall of the fixed cylinder 14 is arranged below the fixed plate 122, and a connecting groove 1311 matching with the transmission plate 1221 is arranged on the driving frame 131, when the turntable 1 drives the bearing assembly 12 to move to the bottom of the sealing box 2, the transmission plate 1221 will be inserted into the connecting groove 1311.

[0041] The fixed cylinder 14 is used to support the turntable 1. A slide groove 141 extending along its axial direction is provided on the fixed cylinder 14. The driving frame 131 can be slidably arranged on the slide groove 141. A linear driver for lifting the driving frame 131 is provided at the bottom of the fixed cylinder 14. The linear driver is preferably a cylinder, which drives the driving frame 131 to move along the slide groove 141. When the turntable 1 drives the carrying assembly 12 to move below the sealed box 2, the transmission plate 1221 will be inserted into the connecting groove 1311, so that the driving frame 131 drives the transmission plate 1221 to move through the connecting groove 1311, and the fixed plate 122 is driven by the transmission plate 1221, thereby driving the connecting rod 123 and the carrying plate 121, so that the carrying assembly 12 can drive the display liquid crystal panel 3 to extend into the sealed box 2, so that the sealed box 2 can block the external light source, thereby improving the detection of light leakage of the display liquid crystal panel 3. In order to improve the accuracy and detection efficiency, in order to further improve the transmission effect between the two, the end of the transmission plate 1221 close to the edge of the turntable 1 can be set to an arc structure, and the connecting groove 1311 can also be set to an arc structure, so that the transmission plate 1221 can better combine with each other when it is turned into the connecting groove 1311, and the opposite side of the connecting groove 1311 is provided with a plurality of pulleys 1312 extending and arranged along its arc direction, so that the transmission plate 1221 is more stable when it is moved out later, and the scratches generated when the transmission plate 1221 enters and exits the connecting groove 1311 can be reduced, which helps to extend the service life of the equipment, and flares 1313 are provided on both sides of the connecting groove 1311, so that the transmission plate 1221 can play a certain guiding role when inserted into the connecting groove 1311 of the drive frame 131, avoiding the failure to connect between the two due to slight errors, thereby improving the stability of the equipment operation.

[0042] like Figure 3 , Figures 6 to 11 As shown: the driving assembly 13 also includes a rotating shaft 132, a cam 133 and a transmission block 221. The rotating shaft 132 is rotatably arranged on the outer wall of the fixed cylinder 14 in a horizontal state, the cam 133 is sleeved on the rotating shaft 132, and the transmission block 221 is fixedly connected to a side of the second box body 22 close to the cam 133, and the transmission block 221 and the cam 133 are slidably matched.

[0043] The cam 133 is driven to rotate by rotating the rotating shaft 132, and the rotation of the cam 133 drives the transmission block 221 to move. Since the transmission block 221 is fixedly connected to the second box body 22, and the second box body 22 is mounted on the first box body 21, the movement of the transmission block 221 can drive the second box body 22 to move along the first box body 21, so that the second box body 22 can be away from the top surface of the turntable 1, thereby avoiding the support component 12 and the display liquid crystal panel 3 in the rotation process. In this way, the turntable 1 can be started without waiting for the support component 12 to fall completely, thereby reducing the waiting time during the detection process and improving the detection efficiency.

[0044] like Figure 3 , Figures 6 to 11 As shown: the driving assembly 13 also includes a gear 1322, a rack 1316 and a one-way bearing 1321. The driving frame 131 is provided with a sliding rod 1314 that passes through the fixed cylinder 14. The sliding rod 1314 is provided with a mounting plate 1315 at one end away from the driving frame 131. The rack 1316 is fixedly connected to the mounting plate 1315 in a vertical state. The one-way bearing 1321 is sleeved on the rotating shaft 132. The gear 1322 is sleeved on the one-way bearing 1321, and the gear 1322 is meshed and connected with the rack 1316.

[0045] The sliding rod 1314 is sleeved on the sliding groove 141 and slidably cooperates with it. When the linear drive drives the driving frame 131 to move, the driving frame 131 will drive the movement of the sliding rod 1314, so that the sliding rod 1314 slides along the sliding groove 141. The movement of the sliding rod 1314 can drive the movement of the mounting plate 1315. The movement of the mounting plate 1315 can drive the movement of the rack 1316 fixedly connected thereto. The movement of the rack 1316 can drive the rotation of the gear 1322 meshed with it. Since the gear 1322 is sleeved on the one-way bearing 1321, and the one-way bearing 1321 is sleeved on the rotating shaft 132, when the linear drive frame 131 drives the driving frame 131 to move upward, the driving frame 131 will drive the bearing assembly 12 to move upward through the connecting groove 1311. At this time, when the rack 1316 drives the gear 1322 to rotate The gear 1322 can only rotate on the one-way bearing 1321 and cannot drive the rotating shaft 132 to rotate. Therefore, the cam 133 cannot drive the second box body 22 to move. When the linear driving frame 131 drives the driving frame 131 to reset, the rack 1316 moves down to drive the gear 1322 to rotate in the opposite direction. At this time, the gear 1322 can drive the rotating shaft 132 to rotate through the one-way bearing 1321, and the rotating shaft 132 drives the cam 133 to rotate. The cam 133 drives the transmission block 221 that slides with it to move, and the transmission block 221 drives the second box body 22 to move up, so that the bearing assembly 12 and the second box body 22 slide relative to each other along the axial direction of the turntable 1. In this way, the turntable 1 can be started without waiting for the bearing assembly 12 to fall completely, thereby reducing the waiting time during the detection process and improving the detection efficiency.

[0046] like Figures 6 to 9 As shown: a connecting plate 1222 is provided between the transmission plate 1221 and the fixing plate 122 , a positioning groove 12221 is provided on the connecting plate 1222 , and a positioning block 13171 which can move along the radial direction of the turntable 1 is provided on the driving frame 131 .

[0047] The top of the driving frame 131 is provided with a support plate 1317 which is parallel to the connecting plate 1222. The support plate 1317 is provided with two retractable push rods. A positioning block 13171 is provided at one end of the push rod away from the supporting plate 1317. The connecting plate 1222 and the supporting plate 1317 are provided with a signal receiver 13172 and a sensor 13173 respectively. After the bearing assembly 12 is driven by the turntable 1 to the side of the driving frame 131, its transmission plate 1221 will be inserted into the connecting groove 1311. However, this connection method is not stable enough. The positioning groove 12221 and the positioning block 13171 are arranged so that after the bearing assembly 12 is driven to the side of the driving frame 131 by the turntable 1, the retractable push rod on the support plate 1317 will drive the positioning plate to be inserted into the positioning block 13171, so that the two can maintain a fixed and stable position. Through the signal receiver 13172 and the sensor 13173, the equipment can automatically connect the two to improve the degree of automation of the equipment. The push rod is preferably a retractable electric drive push rod.

[0048] like Figure 4 , Figures 6 to 9 As shown: a power supply unit 1211 for supplying power to the display liquid crystal panel 3 is arranged on the carrier board 121 .

[0049] By setting the power supply unit 1211, the display liquid crystal panel 3 can be powered by the power supply unit 1211 after being placed in the supporting component 12, so that it can be powered on and detected by the detection component 23. The power supply unit 1211 is provided with a circuit leading to the positioning groove 12221, and the positioning block 13171 is provided with a probe. A power supply cable is provided between the positioning block 13171 and the support plate 1317, so that electrical connection can be achieved only after the positioning block 13171 is inserted into the positioning groove 12221. Through the above-mentioned method, the display liquid crystal panel 3 can be powered only after the supporting component 12 is rotated to the driving frame 131, which can reduce the independent setting of the power supply unit 1211 on each supporting component 12, thereby reducing the cost expenditure.

[0050] like Figure 4 , Figures 6 to 10 As shown: a plurality of adsorption holes 1212 arranged in a rectangular array are provided on the carrier plate 121, an air suction box 1213 interconnected with the plurality of adsorption holes 1212 is provided below the carrier plate 121, and an air path is provided at the bottom end of the air suction box 1213 to connect with an external air source.

[0051] By setting the adsorption holes 1212 and the suction box 1213, after the display liquid crystal panel 3 is placed on the carrier plate 121, the external air source can be started to make the suction box 1213 in a negative pressure state, so that suction can be generated on the adsorption holes 1212, thereby fixing the display liquid crystal panel 3 placed on the carrier plate 121, so that the display liquid crystal panel 3 will not shake during the process of moving with the carrier component 12, especially when being driven by the carrier component 12 into the sealing box 2, thereby improving the detection accuracy of the equipment.

[0052] like Figure 1 , Figure 4 , Figure 5 and Fig.10 As shown: an adjustment frame 231 capable of driving the detection assembly 23 to move up and down is arranged on the top of the sealing box 2.

[0053] The adjustment frame 231 includes an adjustment plate 2311, two limit plates 2312 and four guide rods 2313. The detection component 23 is fixedly connected to the bottom of the adjustment plate 2311. The four guide rods 2313 are fixedly connected to the top of the adjustment plate 2311 in a vertical state, and the four guide rods 2313 all pass through the top of the sealing box 2 and slide with it. The two limit plates 2312 are fixedly connected to the two guide rods 2313 respectively. The top of the sealing box 2 is also provided with a linear driver for driving the adjustment plate 2311 to move. The linear driver is preferably an electric push rod. The adjustment plate 2311 is driven to move by the linear driver. The adjustment plate 2311 drives the four guide rods 2313 to slide on the sealing box 2 along the axial direction of the guide rods 2313, thereby driving the detection component 23 at the bottom of the adjustment plate 2311 to adjust the height direction, and cooperate with the driving component 13 to drive the lifting of the bearing component 12, so that the device can adapt to different types of display liquid crystal panels 3, thereby improving the adaptability of the device.

[0054] like Figures 1 to 5 and Fig.10 As shown: A liquid crystal display anti-light leakage detection method, applied to any one of the liquid crystal display anti-light leakage detection devices described above, comprising the following steps:

[0055] S1, placing the display liquid crystal panel 3 to be tested on the bearing assembly 12 of a mounting slot 11 beside the sealed box 2, and the turntable 1 drives the bearing assembly 12 on the mounting slot 11 to move toward the side with the sealed box 2 until the mounting slot 11 rotates to the bottom of the sealed box 2;

[0056] S2, driving the bearing assembly 12 to move along the axis direction of the turntable 1 through the driving assembly 13, so that the display liquid crystal panel 3 can be extended into the interior of the sealed box 2 by the bearing assembly 12, and the detection assembly 23 detects it until the detection is completed;

[0057] S3, after the detection is completed, the driving component 13 will drive the bearing component 12 and the second box body 22 to move relatively along the axis direction of the turntable 1, so that the second box body 22 moves up, and the bearing component 12 moves down until it is reset. At the same time, the turntable 1 drives the bearing component 12 to rotate, so that the bearing component 12 rotates to the other side of the sealing box 2, and the display liquid crystal panel 3 after the detection is completed is taken out;

[0058] S4, repeat steps S1, S2 and S3 until all display liquid crystal panels 3 are tested.

[0059] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A liquid crystal display anti-light leakage detection device, comprising a turntable (1), characterized in that: The turntable (1) is provided with a plurality of installation grooves (11) equidistantly surrounding the axis of the turntable (1), and each installation groove (11) is provided with a bearing component (12) capable of moving along the axis direction of the turntable (1); A sealed box (2) is arranged above one of the mounting grooves (11), the sealed box (2) comprising a fixed first box body (21) and a second box body (22) sleeved on the bottom of the first box body (21), the second box body (22) being able to slide along the first box body (21); A detection component (23) for performing light leakage detection on the display liquid crystal panel (3) is arranged on the top of the first box body (21); A driving assembly (13) for driving the bearing assembly (12) and the second box body (22) to move is arranged inside the turntable (1). The driving assembly (13) is used to make the bearing assembly (12) extend into the interior of the sealing box (2) and the second box body (22) remain stationary when the bearing assembly (12) moves to the bottom of the sealing box (2). When the bearing assembly (12) moves away from the sealing box (2) along with the rotating disk (1), the bearing assembly (12) and the second box body (22) slide relatively along the axis direction of the rotating disk (1), so that the second box body (22) moves upward and the bearing assembly (12) moves downward until it is reset; The bearing assembly (12) comprises a bearing plate (121), a fixing plate (122) and four connecting rods (123); the four connecting rods (123) are vertically fixedly connected to four end corners between the bearing plate (121) and the fixing plate (122); a mounting seat (111) matching the four connecting rods (123) is provided at the bottom of the mounting groove (11); the connecting rods (123) are sleeved in the mounting seat (111) and can be slidably connected thereto; A fixed cylinder (14) is arranged below the rotating disk (1), the driving assembly (13) comprises a driving frame (131) which can move along the axis direction of the rotating disk (1), and the driving frame (131) is located below the sealing box (2), a transmission plate (1221) parallel to the inner wall of the fixed cylinder (14) is arranged below the fixed plate (122), and a connecting groove (1311) which matches the transmission plate (1221) is arranged on the driving frame (131), and when the rotating disk (1) drives the bearing assembly (12) to move to the bottom of the sealing box (2), the transmission plate (1221) is inserted into the connecting groove (1311); The driving assembly (13) further comprises a rotating shaft (132), a cam (133) and a transmission block (221); the rotating shaft (132) is rotatably arranged on the outer wall of the fixed cylinder (14) in a horizontal state; the cam (133) is sleeved on the rotating shaft (132); the transmission block (221) is fixedly connected to a side of the second housing (22) close to the cam (133); the transmission block (221) and the cam (133) are slidably matched; The driving assembly (13) further comprises a gear (1322), a rack (1316) and a one-way bearing (1321); a sliding rod (1314) penetrating through the fixed cylinder (14) is arranged on the driving frame (131); a mounting plate (1315) is arranged on one end of the sliding rod (1314) away from the driving frame (131); the rack (1316) is fixedly connected to the mounting plate (1315) in a vertical state; the one-way bearing (1321) is sleeved on the rotating shaft (132); the gear (1322) is sleeved on the one-way bearing (1321); and the gear (1322) is meshingly connected to the rack (1316); A connecting plate (1222) is provided between the transmission plate (1221) and the fixing plate (122), a positioning groove (12221) is provided on the connecting plate (1222), and a positioning block (13171) capable of moving along the radial direction of the rotating disk (1) is provided on the driving frame (131).

2. The liquid crystal display anti-light leakage detection device according to claim 1, characterized in that: A power supply unit (1211) for supplying power to the display liquid crystal panel (3) is provided on the carrier plate (121).

3. The liquid crystal display anti-light leakage detection device according to claim 1, characterized in that: A plurality of adsorption holes (1212) arranged in a rectangular array are provided on the carrier plate (121), an air suction box (1213) interconnected with the plurality of adsorption holes (1212) is provided below the carrier plate (121), and an air path is provided at the bottom end of the air suction box (1213) to connect with an external air source.

4. The liquid crystal display anti-light leakage detection device according to claim 1, characterized in that: An adjustment frame (231) capable of driving the detection component (23) to move up and down is arranged on the top of the sealing box (2).

5. A method for detecting light leakage prevention of a liquid crystal display, applied to a device for detecting light leakage prevention of a liquid crystal display as claimed in any one of claims 1 to 4, characterized in that: The following steps are included: S1, placing a display liquid crystal panel (3) to be tested on a bearing component (12) of a mounting groove (11) beside the sealing box (2), and driving the bearing component (12) on the mounting groove (11) to move toward the side with the sealing box (2) by the turntable (1), until the mounting groove (11) is rotated to the bottom of the sealing box (2); S2, driving the bearing assembly (12) to move along the axis direction of the turntable (1) by means of the driving assembly (13), so that the display liquid crystal panel (3) can be extended into the interior of the sealed box (2) by the bearing assembly (12), and the display liquid crystal panel (3) is inspected by means of the inspection assembly (23) until the inspection is completed; S3, after the detection is completed, the driving component (13) drives the bearing component (12) and the second box body (22) to move relative to each other along the axis direction of the turntable (1), so that the second box body (22) moves upward and the bearing component (12) moves downward until it is reset. At the same time, the turntable (1) drives the bearing component (12) to rotate, so that the bearing component (12) rotates to the other side of the sealing box (2), and the display liquid crystal panel (3) after the detection is completed is taken out; S4, repeat steps S1, S2 and S3 until all display liquid crystal panels (3) are tested.

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