A mobile phone display screen lighting test device

Abstract

The application relates to the field of display screens, in particular to a mobile phone display screen lighting test device which comprises a chassis and an automatic detector and the like; the automatic detector is installed on the chassis. The application realizes the cooperation of the top rod, the second sliding rod and the right circular roller to make the flexible flat cable form a U-shaped bending shape, so that the flexible flat cable has sufficient elongation length, the pulling and breaking phenomenon of the flexible flat cable is avoided, the left part of the flexible flat cable is extruded by the left circular roller and is pushed to move to the left, that is, the left part of the flexible flat cable is pushed to the display screen, so that the flexible flat cable and the display screen have sufficient length, when the flexible flat cable and the display screen are pulled, the flexible flat cable is first straightened, so that the connection part of the flexible flat cable and the display screen is not directly pulled, and the pulling and breaking phenomenon of the connection part of the flexible flat cable and the display screen is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of displays, and more specifically, to a device for testing the backlighting of a mobile phone display. Background Technology

[0002] Existing Chinese patent (CN111795808B) discloses a display screen testing device:

[0003] By setting a positioning device on the fixture to match the non-inspection surface of the display screen, the display screen inspection equipment of the present invention can be used to inspect display screens of different sizes. It is only necessary to match the positioning pin on the non-inspection surface of the display screen with the positioning hole on the fixture to realize the installation of display screens of different sizes, which facilitates the subsequent inspection process and improves the practicality of the inspection equipment. However, this method has the following drawbacks.

[0004] The display screen is connected to a ribbon cable, which needs to be moved back and forth multiple times during the testing process. This can easily cause the ribbon cable to break or become disconnected from the power supply, severely affecting the testing and subsequent normal use of the display screen. After the test is completed, the display screen needs to be removed. However, the current technology involves pulling the ribbon cable directly off the power supply when removing the display screen. This method is very easy to break the ribbon cable, causing it to break and become damaged. It can also easily cause the connection between the ribbon cable and the display screen to become loose, seriously affecting the quality of the display screen.

[0005] Furthermore, after a long period of inactivity, dust easily accumulates on the surface of the display screen. If it is not cleaned in time, it can easily lead to misjudgments during testing. Summary of the Invention

[0006] To overcome the drawback that the ribbon cable is prone to breakage during the movement of the display screen, this invention provides a mobile phone display screen backlight testing device.

[0007] The technical implementation of this invention is as follows: A mobile phone display screen backlight testing device includes a base frame, a base plate, and an automatic detector; the base plate is fixedly connected to the upper part of the base frame; the automatic detector is installed on the base frame; it also includes a detection system, a first fixed plate, a top rod, a second limiting frame, a second sliding rod, a linear guide rail, a sliding block, an adjustment system, and a cleaning system; the detection system is connected to the base plate; the detection system is connected to the first fixed plate; the top rod is fixedly connected to the first fixed plate; two symmetrically arranged second limiting frames are fixedly connected to the first fixed plate; a linear guide rail is fixedly connected to each second limiting frame; a sliding block is slidably connected to each linear guide rail; the two sliding blocks are rotatably connected to a second sliding rod; the adjustment system is connected to the base plate; the adjustment system is connected to the detection system; and the cleaning system is connected to the base plate.

[0008] Furthermore, the second limit frame is set at an angle upward.

[0009] Furthermore, with the first fixed plate as a reference, the position of the top rod is higher than the position of the second sliding rod when viewed from below.

[0010] Furthermore, the detection system includes a first electric slide rail, a first electric slider, a first motor, a support frame, a first limit frame, a support block, a connecting plate, a first electric actuator, a first sliding rod, and a fixing mechanism; the first electric slide rail is fixedly connected to the front of the upper surface of the base frame; the first electric slider is slidably connected to the first electric slide rail; the first motor is mounted on the first electric slider; the output shaft of the first motor is fixedly connected to the support frame; the first limit frame is fixedly connected to the upper part of the support frame; the first limit frame is connected to the adjustment system; two symmetrically arranged left and right distributed support blocks are fixedly connected to the middle of the upper surface of the support frame, and each support block is connected to a suction cup in the middle; the connecting plate is fixedly connected to the right side of the first limit frame; the first electric actuator is fixedly connected to the connecting plate; the first sliding rod is fixedly connected to the telescopic part of the first electric actuator; the first sliding rod is slidably connected to the connecting plate; the first sliding rod is fixedly connected to the first fixing plate; the first limit frame is connected to the fixing mechanism.

[0011] Furthermore, the height of the support and the two support blocks is higher than the upper surface of the first limiting frame.

[0012] Furthermore, the fixing mechanism includes a gantry frame, a second electric actuator, an L-shaped rod, a pressure block, and an electrical box; the gantry frame is fixedly connected to the right side of the first limiting frame; the second electric actuator is fixedly connected to the gantry frame; the telescopic part of the second electric actuator is fixedly connected to the L-shaped rod; the pressure block is slidably connected to the lower part of the L-shaped rod, and a spring is sleeved on the outside of the pressure block, one end of the spring is fixedly connected to the L-shaped rod, and the other end of the spring is fixedly connected to the pressure block; the electrical box is installed on the right side of the first limiting frame, and the electrical box is located below the gantry frame.

[0013] Furthermore, the adjustment system includes a bracket, a second electric slide rail, a second electric slider, a third electric slide rail, a third electric slider, a connecting rod, a connecting frame, a roller, and a top block; a bracket is fixedly attached to the right side of the upper surface of the base plate; two second electric slide rails are fixedly attached to the upper part of the bracket; a second electric slider is slidably connected to each second electric slide rail; the two second electric sliders are jointly fixedly attached to a third electric slide rail; two third electric sliders are slidably connected to the third electric slide rail; a connecting rod is fixedly attached to the lower surface of each third electric slider; a connecting frame is fixedly attached to the lower part of each of the two connecting rods, and the connecting frame on the left has a telescopic structure for telescopic movement; a roller is rotatably connected to the lower part of each of the two connecting frames; a top block is fixedly attached to the right side of the first limiting frame.

[0014] Furthermore, based on the third electric slide rail, the connecting rod on the left is shorter than the connecting rod on the right, which makes the roller on the left higher than the roller on the right.

[0015] Furthermore, sponges are provided on the outer sides of the top rod, the second sliding rod, and the two rollers.

[0016] Furthermore, the cleaning system includes a fourth electric slide rail, a fourth electric slider, a fixed frame, a second fixed plate, a storage tank, a sliding plate, a second motor, a drive shaft, a cylinder, and a third electric actuator. The fourth electric slide rail is fixedly attached to the left side of the upper surface of the base plate. The fourth electric slider is slidably connected to the fourth electric slide rail. A fixed frame is fixedly attached to the fourth electric slider. Two second fixed plates, distributed left and right, are fixedly attached to the upper part of the fixed frame. A storage tank is fixedly attached to each second fixed plate, and an automatic spray head is connected to the lower part of each storage tank. Two sliding plates are slidably connected to the fixed frame. A second motor is mounted on each sliding plate. A drive shaft is fixedly attached to the output shaft of each of the two second motors. Each of the two drive shafts is rotatably connected to a sliding plate. A cylinder is rotatably connected to each of the two drive shafts, and the cylinder is designed to be openable, with a through hole at the top. Two third electric actuators are fixedly attached to the lower part of the fixed frame. The telescopic parts of each of the two third electric actuators are fixedly connected to a sliding plate.

[0017] The advantages and positive effects of this invention are:

[0018] 1. The top rod and the second sliding rod cooperate with the right-side roller to form a U-shaped bend in the flexible ribbon cable, thereby giving the flexible ribbon cable sufficient elongation and preventing it from being pulled and broken.

[0019] 2. The left side of the flexible ribbon cable is squeezed by the left roller and pushed to the left, pushing the left side of the flexible ribbon cable toward the display screen. This ensures that there is enough length between the flexible ribbon cable and the display screen. When the flexible ribbon cable is pulled between the two screens, it will be straightened first, thus avoiding direct pulling at the connection between the flexible ribbon cable and the display screen, and effectively preventing the connection between the flexible ribbon cable and the display screen from being pulled and broken.

[0020] 3. The flexible cable is squeezed by the top rod, causing the right side of the flexible cable to tilt and forming an angle at the connection between the flexible cable and the electrical box, thereby achieving pre-disengagement. The second sliding rod moves obliquely upward to squeeze the flexible cable, thereby further widening the angle formed at the connection between the flexible cable and the electrical box, thereby further achieving pre-disengagement.

[0021] 4. By moving the top rod and the second sliding rod upwards simultaneously, the flexible cable is pulled out of the electrical box, so that the flexible cable is completely detached from the electrical box, thereby avoiding the phenomenon of the flexible cable being pulled and broken.

[0022] 5. Clean the display screen with a cleaning cloth to prevent dust from adhering to the surface, thus avoiding misjudgments during the light-up test. Replenish the cleaning cloth with alcohol using the storage container for quick replenishment, effectively slowing down the evaporation rate and saving alcohol usage. Attached Figure Description

[0023] Figure 1 The diagram shown is a three-dimensional structural schematic of the mobile phone display screen illumination test device of the present invention.

[0024] Figure 2 The diagram shown is a partial three-dimensional structural schematic of the mobile phone display screen illumination test device of the present invention;

[0025] Figure 3 The diagram shown is a three-dimensional structural schematic of the display screen of the present invention;

[0026] Figure 4 The diagram shown is a partial three-dimensional structural schematic of the mobile phone display screen backlight testing device detection system of the present invention;

[0027] Figure 5 The image shown is a first partial cross-sectional view of the mobile phone display screen backlight testing device detection system of the present invention;

[0028] Figure 6 The image shown is a second partial cross-sectional view of the detection system of the mobile phone display screen backlight testing device of the present invention;

[0029] Figure 7 The diagram shown is a partial three-dimensional structural schematic of the adjustment system of the mobile phone display screen light-up testing device of the present invention.

[0030] Figure 8 The diagram shown is a partial three-dimensional structural schematic of the adjustment system of the mobile phone display screen light-up testing device of the present invention.

[0031] Figure 9 The diagram shown is a three-dimensional structural schematic of the cleaning system of the mobile phone display screen backlight testing device of the present invention.

[0032] Figure 10 The diagram shown is a partial three-dimensional structural schematic of the cleaning system of the mobile phone display screen lighting test device of the present invention.

[0033] Meaning of the reference numerals in the diagram:

[0034] 1-Base frame, 2-Base plate, 3-Automatic detector, 4-Display screen, 41-Flexible cable;

[0035] 201-First electric slide rail, 202-First electric slider, 203-First motor, 204-Support frame, 2041-Support part, 205-First limiting frame, 206-Support block, 207-Connecting plate, 208-First electric actuator, 209-First sliding rod, 210-First fixing plate, 211-Top rod, 212-Second limiting frame, 213-Second sliding rod, 214-Gantry frame, 215-Second electric actuator, 216-L-shaped rod, 217-Pressure block, 218-Electric box, 219-Linear guide rail, 220-Sliding block;

[0036] 301-Bracket, 302-Second electric slide rail, 303-Second electric slider, 304-Third electric slide rail, 305-Third electric slider, 306-Connecting rod, 307-Connecting frame, 308-Circular roller, 309-Top block;

[0037] 401-Fourth electric slide rail, 402-Fourth electric slider, 403-Fixed frame, 404-Second fixed plate, 405-Storage tank, 406-Sliding plate, 407-Second motor, 408-Drive shaft, 409-Cylinder, 410-Third electric actuator. Detailed Implementation

[0038] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] Example 1

[0040] A mobile phone display screen 4-point LED testing device, according to Figure 1-6 As shown, it includes a base frame 1, a base plate 2, and an automatic detector 3; the base plate 2 is fixed to the upper part of the base frame 1, and the base plate 2 is made of stainless steel; the automatic detector 3 is installed in the middle of the upper surface of the base frame 1.

[0041] It also includes a detection system, a first fixed plate 210, a top rod 211, a second limiting frame 212, a second sliding rod 213, a linear guide rail 219, a sliding block 220, an adjustment system, and a cleaning system; the detection system is connected to the base plate 2; the detection system is connected to the first fixed plate 210; the top rod 211 is fixedly attached to the upper surface of the first fixed plate 210, and the top rod 211 squeezes the flexible cable 41 to achieve pre-detachment; two second limiting frames 212 distributed front and rear are fixedly attached to the first fixed plate 210, and the second limiting frames 212... 12 are set at an angle upward; each second limit frame 212 is fixed with a linear guide rail 219; each linear guide rail 219 is slidably connected with a sliding block 220; the two sliding blocks 220 are rotatably connected to a second sliding rod 213, the second sliding rod 213 moves at an angle upward to squeeze the flexible ribbon cable 41, further realizing pre-detachment; the right side of the upper surface of the base plate 2 is connected to an adjustment system; the adjustment system is connected to a detection system; the left side of the upper surface of the base plate 2 is connected to a cleaning system for cleaning the display screen 4.

[0042] The second limiting frame 212 is set at an angle upward, used to squeeze the flexible cable 41.

[0043] With the first fixed plate 210 as a reference, the position of the top rod 211 is higher than the position of the second sliding rod 213 when viewed from below. When the first fixed plate 210 moves upward, the top rod 211 and the second sliding rod 213 move upward, so that the top rod 211 touches the flexible cable 41 first.

[0044] The detection system includes a first electric slide rail 201, a first electric slider 202, a first motor 203, a support frame 204, a first limit frame 205, a support block 206, a connecting plate 207, a first electric actuator 208, a first sliding rod 209, and a fixing mechanism; the first electric slide rail 201 is fixedly connected to the front of the upper surface of the base frame 1; the first electric slider 202 is slidably connected to the first electric slide rail 201; the first motor 203 is mounted on the first electric slider 202; the output shaft of the first motor 203 is fixedly connected to the support frame 204; the first limit rod 209 is fixedly connected to the upper part of the support frame 204. Positioning frame 205; the first limiting frame 205 is connected to the adjustment system; two left and right distributed support blocks 206 are fixedly connected to the middle of the upper surface of the support frame 204, and each support block 206 is connected to a suction cup in the middle; a connecting plate 207 is fixedly connected to the right side of the first limiting frame 205; a first electric actuator 208 is fixedly connected to the connecting plate 207; a first sliding rod 209 is fixedly connected to the telescopic part of the first electric actuator 208; the first sliding rod 209 is slidably connected to the connecting plate 207; the first sliding rod 209 is fixedly connected to the first fixed plate 210; the first limiting frame 205 is connected to a fixing mechanism.

[0045] The support frame 204 is provided with a support part 2041, and the height of the support part 2041 is the same as the height of the two support blocks 206, which is used to support the display screen 4 and adapt to display screens 4 of different sizes.

[0046] The height of the support 2041 and the two support blocks 206 is higher than the upper surface of the first limiting frame 205, so as to facilitate cleaning of the edge of the display screen 4.

[0047] The fixing mechanism includes a gantry frame 214, a second electric actuator 215, an L-shaped rod 216, a pressure block 217, and an electrical box 218. The gantry frame 214 is fixedly connected to the right side of the first limiting frame 205. The second electric actuator 215 is fixedly connected to the gantry frame 214. The telescopic part of the second electric actuator 215 is fixedly connected to the L-shaped rod 216. The pressure block 217 is slidably connected to the lower part of the L-shaped rod 216, and a spring is sleeved on the outside of the pressure block 217. One end of the spring is fixedly connected to the L-shaped rod 216, and the other end of the spring is fixedly connected to the pressure block 217. The electrical box 218 is installed on the right side of the first limiting frame 205, and the electrical box 218 is located below the gantry frame 214. The electrical box 218 is used to provide power to the display screen 4.

[0048] Example 2:

[0049] Based on Example 1, according to Figure 7-8 As shown, the adjustment system includes a bracket 301, a second electric slide rail 302, a second electric slider 303, a third electric slide rail 304, a third electric slider 305, a connecting rod 306, a connecting frame 307, a circular roller 308, and a top block 309. The bracket 301 is fixedly connected to the right side of the upper surface of the base plate 2. Two second electric slide rails 302 are fixedly connected to the upper part of the bracket 301. A second electric slider 303 is slidably connected to each second electric slide rail 302. The two second electric sliders 303 are jointly fixedly connected to the third electric slide rail 304. Two third electric sliders 305 are slidably connected to the third electric slide rail 304. A connecting rod 306 is fixedly connected to the lower surface of each third electric slider 305. A connecting frame 307 is fixedly connected to the lower part of each of the two connecting rods 306, and the connecting frame 307 on the left has a telescopic structure for extension and retraction. A circular roller 308 is rotatably connected to the lower part of each of the two connecting frames 307. A top block 309 is fixedly connected to the right side of the first limiting frame 205.

[0050] With the third electric slide rail 304 as a reference, the left connecting rod 306 is shorter than the right connecting rod 306, which makes the left roller 308 higher than the right roller 308, thereby bending the flexible cable 41.

[0051] Sponges are provided on the outer sides of the top rod 211, the second sliding rod 213, and the two round rollers 308 to prevent damage to the flexible cable 41.

[0052] Before testing: Connect the external air pump to the suction cups located in the middle of the two support blocks 206. Then, manually place the display screen 4 on the support frame 204, which is supported by the support part 2041 and the two support blocks 206. A flat flexible ribbon cable 41 is connected to the lower surface of the display screen 4. Next, connect the flexible ribbon cable 41 to the electrical box 218 to power the display screen 4. Then, start the external air pump, which will generate negative pressure in the suction cups located in the middle of the two support blocks 206, thereby adsorbing the display screen 4 through the two support blocks 206, thus making the display screen... 4. Maintain stability during movement. Then, control the first electric slider 202 to move to the left along the first electric slide rail 201. The movement of the first electric slider 202 drives all connected components to move, thereby moving the display screen 4 directly below the two rollers 308. Because the display screen 4 needs to move back and forth left and right during the testing process, it is very easy for the flexible ribbon cable 41 to be pulled and broken during the movement, and for the flexible ribbon cable 41 to detach from the electrical box 218. This seriously affects the testing operation of the display screen 4 and its normal use in the future. The flexible cable 41 is located on the upper surface of the top block 309, and the movable end of the flexible cable 41 is connected to the electrical box 218. Then, the two second electric sliders 303 are controlled to move downwards along a second electric slide rail 302, thereby driving all connected components downwards, which in turn drives the two rollers 308 downwards and compresses the flexible cable 41. At this time, with the third electric slide rail 304 as a reference, the left roller 308 is higher than the right roller 308, and the left connecting frame 307 has a telescopic structure. When the left roller 308 moves downwards... When the flexible ribbon cable 41 is compressed, the left roller 308 will be compressed by the top block 309, while the right roller 308 will not be blocked by the top block 309 and will drive the flexible ribbon cable 41 to move downward, thereby squeezing the flexible ribbon cable 41 into the gap between the top rod 211 and the second sliding rod 213. The top rod 211 and the second sliding rod 213 cooperate with the right roller 308 to make the flexible ribbon cable 41 form a U-shaped bend, so that the flexible ribbon cable 41 has sufficient elongation and avoids the flexible ribbon cable 41 from being pulled and broken.

[0053] Meanwhile, to prevent the flexible ribbon cable 41 from breaking at the connection point with the display screen 4, the two third electric sliders 305 are controlled to each drive a connecting rod 306 to move, causing the two connecting rods 306 to move in opposite directions, which in turn drives the corresponding connecting frame 307 and the roller 308 to move. The left roller 308 then squeezes the left part of the flexible ribbon cable 41 and pushes the left part of the flexible ribbon cable 41 to the left, pushing the left part of the flexible ribbon cable 41 toward the display screen 4. This ensures that there is sufficient length between the flexible ribbon cable 41 and the display screen 4. When the flexible ribbon cable 41 and the display screen 4 are pulled, the flexible ribbon cable 41 will be straightened first, thus avoiding direct pulling at the connection point between the flexible ribbon cable 41 and the display screen 4, thereby effectively preventing the connection point between the flexible ribbon cable 41 and the display screen 4 from breaking.

[0054] At the same time, the movement of the right roller 308 drives the right part of the flexible ribbon cable 41 to move to the right, so that the right part of the flexible ribbon cable 41 forms a sufficiently long U-shaped bend, thereby effectively preventing the right part of the flexible ribbon cable 41 from detaching from the electrical box 218 during the movement of the display screen 4, effectively improving the stability of the detection, and preventing the flexible ribbon cable 41 from being pulled and broken.

[0055] During material feeding: After the display screen 4 completes its inspection, the first electric slider 202 is controlled to move to the right and reset along the first electric slide rail 201. At this time, the flexible ribbon cable 41 needs to be pulled out and disconnected from the electrical box 218 before the display screen 4 is removed. However, in the existing technology, when removing the display screen 4, the flexible ribbon cable 41 is directly pulled out from the electrical box 218. This method is very easy to break the flexible ribbon cable 41, which will lead to breakage and damage. It is also very easy to cause the connection between the flexible ribbon cable 41 and the display screen 4 to loosen, which seriously affects the quality of the display screen 4. At this time, the first electric actuator 208 is started to drive the first sliding rod 209 to move upward. The movement of the first sliding rod 209 drives the first... A fixed plate 210 moves, causing all connected components to move upwards. This, in turn, causes the top rod 211 and the second sliding rod 213 to move upwards simultaneously. Since the top rod 211 is higher than the second sliding rod 213, when the top rod 211 and the second sliding rod 213 move upwards simultaneously, the top rod 211 will first touch the flexible cable 41 and press against its lower surface. Then, the first electric actuator 208 is activated, causing the first sliding rod 209 to continue moving upwards, which in turn causes all connected components to move. The top rod 211 then presses against the flexible cable 41, causing the right side of the flexible cable 41 to tilt, and causing the flexible cable 41 to connect with the electrical box 218. An angle is formed at the connection point, thus achieving pre-disengagement. Then, the two sliding blocks 220 are each moved obliquely upwards along a linear guide rail 219, thereby driving the second sliding rod 213 to move obliquely upwards to compress the flexible cable 41, further widening the angle formed at the connection point between the flexible cable 41 and the electrical box 218, thus further achieving pre-disengagement. When the height of the second sliding rod 213 after its oblique upward movement is consistent with the height of the top rod 211, the first electric actuator 208 is activated, driving the first sliding rod 209 to continue moving upwards. Simultaneously, the two sliding blocks 220 are each moved obliquely upwards along a linear guide rail 219, thus causing the top rod 211 and the second sliding rod 213 to move synchronously upwards. The flexible ribbon cable 41 is pulled out of the electrical box 218 by moving upwards, so that the flexible ribbon cable 41 is completely detached from the electrical box 218, thereby avoiding the phenomenon of the flexible ribbon cable 41 being pulled apart. During the pulling process, the flexible ribbon cable 41 is supported and squeezed by the top rod 211 and the second sliding rod 213, so that the flexible ribbon cable 41 has two stress points when it is pulled out, which increases the stability of the flexible ribbon cable 41 during the pulling process. Then, the external air pump is controlled to stop operating, so that the two support blocks 206 no longer adhere to the display screen 4. Then, the display screen 4 is removed manually, thus completing the unloading operation and preventing the connection between the flexible ribbon cable 41 and the display screen 4 from being pulled loose.

[0056] Example 3:

[0057] Based on Example 2, according to Figure 9-10 As shown, the cleaning system includes a fourth electric slide rail 401, a fourth electric slider 402, a fixing frame 403, a second fixing plate 404, a storage tank 405, a sliding plate 406, a second motor 407, a drive shaft 408, a cylinder 409, and a third electric actuator 410. The fourth electric slide rail 401 is fixedly connected to the left side of the upper surface of the base plate 2. The fourth electric slider 402 is slidably connected to the fourth electric slide rail 401. The fixing frame 403 is fixedly connected to the fourth electric slider 402. At least two second fixing plates 404 are fixedly connected to the upper part of the fixing frame 403, distributed horizontally. A storage tank 405 is fixedly connected to each second fixing plate 404, and each storage tank 405 is connected to a [missing information - likely a device or mechanism]. The automatic nozzle and storage tank 405 are made of glass for easy observation of the liquid level. Two sliding plates 406 are slidably connected to the fixed frame 403. A second motor 407 is installed on each sliding plate 406. A drive shaft 408 is fixedly connected to the output shaft of each of the two second motors 407. Each of the two drive shafts 408 is rotatably connected to one of the sliding plates 406. A cylinder 409 is rotatably connected to each of the two drive shafts 408. The cylinder 409 is designed to be openable for storing and retrieving the cleaning cloth, and a through hole is opened at the top of the cylinder 409. Two third electric actuators 410 are fixedly connected to the lower part of the fixed frame 403. The telescopic parts of each of the two third electric actuators 410 are fixedly connected to one of the sliding plates 406.

[0058] During cleaning: After the flexible ribbon cable 41 is adjusted, dust easily accumulates on the surface of the display screen 4 after prolonged placement. Failure to clean it promptly can easily lead to misjudgments during the lighting test. Control the first electric slider 202 to move to the left along the first electric slide rail 201, thereby moving all connected components and moving the display screen 4 between the two cylinders 409. Alcohol is manually injected into both storage tanks 405 beforehand, and a rolled-up cleaning cloth is placed into the left cylinder 409 and fitted onto the left drive shaft 408. Simultaneously, alcohol is added to the rolled-up cleaning cloth through the left storage tank 405, and then the movable end of the cleaning cloth is pulled out. Connected to the right drive shaft 408, the display screen 4 is located below the cleaning cloth. Then, the two third electric actuators 410 are started, each driving a sliding plate 406 to move downwards, thereby driving all connected components to move, so that the cleaning cloth contacts the upper surface of the display screen 4. Then, the right second motor 407 is started, and the output shaft of the second motor 407 rotates, driving the right drive shaft 408 to rotate, thereby pulling the cleaning cloth to move. At the same time, the left second motor 407 is started, and the output shaft of the second motor 407 rotates, driving the right drive shaft 408 to rotate, thereby releasing enough cleaning cloth, so that the cleaning cloth moves on the surface of the display screen 4, thereby cleaning the display screen 4 with the cleaning cloth.

[0059] Meanwhile, because the edges of display screen 4 are curved, i.e., display screen 4 is a curved screen, it is very easy for impurities to accumulate on the edges of display screen 4 after cleaning. When impurities accumulate on the left edge of display screen 4, the third electric actuator 410 on the right is activated to move the sliding plate 406 upward, and the third electric actuator 410 on the left is activated to move the sliding plate 406 downward, thereby moving all connected components, so that the cleaning cloth is tilted and fits against the edge of display screen 4. At the same time, because the cleaning cloth has wiped the upper part of display screen 4, After cleaning the surface, the alcohol in the cleaning cloth evaporates very easily. At this time, the left storage tank 405 is activated to replenish the cleaning cloth with alcohol, and then the cleaning cloth is moved to clean the left edge of the display screen 4. When cleaning the left edge of the display screen 4, the left storage tank 405 replenishes the cleaning cloth with alcohol, which can quickly replenish the alcohol and effectively slow down the evaporation rate of the alcohol, saving the amount of alcohol used. Conversely, when impurities accumulate on the right edge of the display screen 4, the same working principle is used to clean it, thereby achieving horizontal cleaning of the display screen 4.

[0060] Next, after the horizontal cleaning of the display screen 4 is completed, the fourth electric slider 402 is controlled to move backward along the fourth electric slide rail 401, thereby driving all connected components to move, and thus driving the cleaning cloth to move backward. At the same time, the first motor 203 is started, and the output shaft of the first motor 203 rotates, driving the support frame 204 to rotate. The rotation of the support frame 204 drives all connected components to rotate, thereby driving the display screen 4 to rotate 90 degrees, thus changing the horizontal placement of the display screen 4 from left to right to vertical placement. Then, the other two edges of the display screen 4 are cleaned using the same working principle. During the cleaning process, the fixing frame 403 can move to the outside of the first limiting frame 205, that is, the through hole in the middle of the fixing frame 403 is larger than the width of the first limiting frame 205, so as to facilitate the cleaning cloth to clean the display screen 4, thereby cleaning the display screen 4, avoiding dust adhering to the surface of the display screen 4, and avoiding misjudgment of the display screen 4 during the lamp test.

[0061] Furthermore, when cleaning the display screen 4 with a cleaning cloth, friction is easily generated between the cleaning cloth and the display screen 4, which can easily cause the display screen 4 to shift, resulting in the connection between the display screen 4 and the flexible ribbon cable 41 being pulled and broken, and the flexible ribbon cable 41 being detached from the electrical box 218. At this time, since the flexible ribbon cable 41 has been adjusted accordingly before cleaning the display screen 4, the pulling and breaking phenomenon and the detachment of the flexible ribbon cable 41 from the electrical box 218 can be effectively avoided.

[0062] During inspection: After the display screen 4 is cleaned, the first electric slider 202 is controlled to move to the left along the first electric slide rail 201, thereby moving all connected components and moving the display screen 4 directly below the automatic detector 3. Then, the automatic detector 3 is controlled to operate, thereby performing a light test on the display screen 4 through the automatic detector 3, and then the unloading operation is carried out.

[0063] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A mobile phone display screen lighting test device, comprising a chassis (1), a bottom plate (2) and an automatic detector (3); the upper part of the chassis (1) is fixedly connected with the bottom plate (2); the automatic detector (3) is installed on the chassis (1); characterized in that, Also include detection system, first fixed plate (210), top rod (211), second limit frame (212), second sliding rod (213), linear guide (219), sliding block (220), adjustment system and cleaning system; The bottom plate (2) is connected with the detection system; The detection system is connected with the first fixed plate (210); The first fixed plate (210) is fixedly connected with the top rod (211); The first fixed plate (210) is fixedly connected with two symmetrical second limit frames (212); Each second limit frame (212) is fixedly connected with a linear guide (219); Each linear guide (219) is slidably connected with a sliding block (220); Two sliding blocks (220) are rotatably connected with a second sliding rod (213); The bottom plate (2) is connected with the adjustment system; The adjustment system is connected with the detection system; The bottom plate (2) is connected with the cleaning system; The second limit frame (212) is inclined upward; The position of the top rod (211) is higher than that of the second sliding rod (213) from bottom to top with the first fixed plate (210) as a reference; The detection system comprises a first electric sliding rail (201), a first electric sliding block (202), a first motor (203), a support frame (204), a first limit frame (205), a support block (206), a connecting plate (207), a first electric actuator (208), a first sliding rod (209) and a fixing mechanism; The first electric sliding rail (201) is fixedly connected to the upper surface of the bottom frame (1); The first electric sliding block (202) is slidably connected to the first electric sliding rail (201); The first motor (203) is installed on the first electric sliding block (202); The support frame (204) is fixedly connected to the output shaft of the first motor (203); The first limit frame (205) is fixedly connected to the upper portion of the support frame (204); The first limit frame (205) is connected to the adjustment system; The support blocks (206) are fixedly connected to the middle portion of the upper surface of the support frame (204) in a symmetrical and left-right distribution, and each support block (206) is connected with a suction cup in the middle portion; The connecting plate (207) is fixedly connected to the right portion of the first limit frame (205); The first electric actuator (208) is fixedly connected to the connecting plate (207); The first sliding rod (209) is fixedly connected to the telescopic portion of the first electric actuator (208); The first sliding rod (209) is slidably connected to the connecting plate (207); The first sliding rod (209) is fixedly connected to the first fixed plate (210); The first limit frame (205) is connected with the fixing mechanism; The lower surface of the display screen (4) is connected with a flat flexible flat cable (41), which is then connected with the electric box (218) to power the display screen (4), and then the peripheral air pump is started to generate negative pressure in the suction cups arranged in the middle of the two support blocks (206), so that the display screen (4) is adsorbed by the two support blocks (206), thereby keeping the display screen (4) stable during movement; Control the first electric sliding block (202) moves to the left along the first electric sliding rail (201), the first electric sliding block (202) moves to drive all the components connected to move, in turn drive the display screen (4) moves to the two rollers (308) directly below; Control the two second electric sliding blocks (303) each moves down along a second electric sliding rail (302), in turn drive all the components connected to move down, in turn drive the two rollers (308) to move down, and extrude the flexible flat cable (41), at this time, with the third electric sliding rail (304) as the benchmark, the left roller (308) is higher than the right roller (308), and the left connecting frame (307) has a telescopic structure, when the left roller (308) moves down to extrude the flexible flat cable (41), the left roller (308) will be blocked by the top block (309) to be compressed, and the right roller (308) is not blocked by the top block (309) to drive the flexible flat cable (41) to move down, in turn extrude the flexible flat cable (41) to the gap between the top rod (211) and the second sliding rod (213), and cooperate with the right roller (308) through the top rod (211) and the second sliding rod (213) to make the flexible flat cable (41) form a U-shaped bending shape, so that the flexible flat cable (41) has enough elongation length, avoid the flexible flat cable (41) to appear the phenomenon of pulling and breaking.

2. The mobile phone display screen light testing device according to claim 1, wherein, The height of the support part (2041) and the two support blocks (206) is higher than the upper surface of the first limiting frame (205).

3. The mobile phone display screen light testing device according to claim 1, wherein, The fixing mechanism comprises a door-shaped frame (214), a second electric actuator (215), an L-shaped rod (216), a pressing block (217) and an electric box (218); the right part of the first limiting frame (205) is fixedly connected with the door-shaped frame (214); the door-shaped frame (214) is fixedly connected with the second electric actuator (215); the telescopic part of the second electric actuator (215) is fixedly connected with the L-shaped rod (216); the L-shaped rod (216) is slidingly connected with the pressing block (217) at the lower part, and a spring is sleeved outside the pressing block (217), one end of the spring is fixedly connected with the L-shaped rod (216), and the other end of the spring is fixedly connected with the pressing block (217); the right part of the first limiting frame (205) is installed with the electric box (218), and the electric box (218) is located below the door-shaped frame (214).

4. The mobile phone display screen light testing device according to claim 3, wherein, The adjusting system comprises a support (301), a second electric sliding rail (302), a second electric sliding block (303), a third electric sliding rail (304), a third electric sliding block (305), a connecting rod (306), a connecting support (307), a round roller (308) and a jacking block (309); the right part of the upper surface of the bottom plate (2) is fixedly connected with the support (301); the upper part of the support (301) is fixedly connected with two second electric sliding rails (302); each second electric sliding rail (302) is slidably connected with a second electric sliding block (303); the two second electric sliding blocks (303) are fixedly connected with the third electric sliding rail (304); the third electric sliding rail (304) is slidably connected with two third electric sliding blocks (305); the lower surface of each third electric sliding block (305) is fixedly connected with a connecting rod (306); the lower parts of the two connecting rods (306) are fixedly connected with a connecting support (307), and the connecting support (307) on the left side has a telescopic structure and can be telescoped; the lower parts of the two connecting supports (307) are rotatably connected with a round roller (308); the right part of the first limiting support (205) is fixedly connected with the jacking block (309).

5. The mobile phone display screen light testing device according to claim 4, characterized in that, With the third electric sliding rail (304) as the reference, the left connecting rod (306) is shorter than the right connecting rod (306), so that the left round roller (308) is higher than the right round roller (308).

6. The mobile phone display screen light testing device according to claim 4, characterized in that, The outer sides of the jacking rod (211), the second sliding rod (213) and the two round rollers (308) are all provided with sponges.

7. The mobile phone display screen light testing device according to claim 4, characterized in that, The cleaning system comprises a fourth electric sliding rail (401), a fourth electric sliding block (402), a fixing frame (403), a second fixed plate (404), a storage tank (405), a sliding plate (406), a second motor (407), a transmission shaft (408), a cylinder (409) and a third electric actuator (410). The fourth electric sliding rail (401) is fixedly connected to the left part of the upper surface of the bottom plate (2). The fourth electric sliding block (402) is slidably connected to the fourth electric sliding rail (401). The fixing frame (403) is fixedly connected to the fourth electric sliding block (402). The two second fixed plates (404) are fixedly connected to the upper part of the fixing frame (403). The storage tank (405) is fixedly connected to each second fixed plate (404), and the automatic nozzle is communicated with the lower part of each storage tank (405). The two sliding plates (406) are slidably connected to the fixing frame (403). The second motor (407) is installed on each sliding plate (406). The transmission shaft (408) is fixedly connected to the output shaft of the two second motors (407). The two transmission shafts (408) are rotatably connected to the sliding plates (406). The cylinder (409) is rotatably connected to the two transmission shafts (408), and the cylinder (409) is provided with a through hole. The two third electric actuators (410) are fixedly connected to the lower part of the fixing frame (403). The telescopic parts of the two third electric actuators (410) are fixedly connected to the sliding plates (406).

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