OLED screen internal defect detection equipment

Abstract

The invention relates to the technical field of OLED (Organic Light Emitting Diode) screen detection, and discloses OLED screen internal defect detection equipment utilizing terahertz imaging, which comprises a workbench, a mounting frame fixedly mounted at the upper part of the workbench, a terahertz wave receiver fixedly mounted at the upper part of the workbench, and a connecting assembly arranged at the upper part of the workbench, the connecting assembly comprises an adjusting mechanism arranged on the lower portion of the mounting frame, a disassembling and assembling mechanism is arranged on the lower portion of the mounting frame, and a fixing mechanism is arranged on the upper portion of the workbench. By arranging the adjusting mechanism, the position of the terahertz wave emitter can be adjusted front and back and left and right, so that different positions of the screen can be detected, the detection result can be more accurate by detecting the different positions, and the applicability of the device is improved; and through the arrangement of the dismounting mechanism, the terahertz wave emitter can be manually dismounted, the terahertz wave emitter can be conveniently overhauled and maintained, and the subsequent detection precision can be prevented from being influenced after the terahertz wave emitter is damaged.

Description

Technical Field

[0001] The present invention relates to the field of OLED screen detection technology, and specifically to an OLED screen internal defect detection device, in particular an OLED screen internal defect detection device using terahertz imaging. Background Art

[0002] OLED (organic light-emitting diode) screens are widely used in many display devices such as smartphones, tablets, and TVs due to their advantages such as self-luminescence, high contrast, wide viewing angle, and fast response speed. However, during the production process of OLED screens, due to process and other reasons, defects such as bubbles, cracks, and foreign matter may appear inside them. Therefore, terahertz imaging is needed to detect OLED screens.

[0003] However, when existing detection devices use terahertz imaging for detection, it is not convenient to adjust the position of the terahertz wave emitter, making it impossible to perform detection operations at different positions of the screen. It is also not convenient to disassemble and repair the terahertz wave emitter, which in turn affects the applicability of the device.

[0004] To this end, we proposed an OLED screen internal defect detection device using terahertz imaging to solve the problem. Summary of the Invention

[0005] The purpose of the present invention is to provide an OLED screen internal defect detection device using terahertz imaging, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an OLED screen internal defect detection device, comprising a workbench;

[0007] A mounting bracket fixedly mounted on the upper portion of the workbench;

[0008] A terahertz wave receiver fixedly mounted on the top of the workbench;

[0009] and a connecting assembly disposed on the upper portion of the workbench;

[0010] The connecting assembly includes an adjusting mechanism provided at the lower portion of the mounting frame, a disassembly mechanism provided at the lower portion of the mounting frame, and a fixing mechanism provided at the upper portion of the workbench;

[0011] The adjusting device comprises a motor which is fixedly mounted on the right side of the mounting bracket by a bracket, the output end of the motor is fixedly connected to a screw rod, and the screw rod is rotatably connected to the mounting bracket by a bearing. The upper part of the mounting bracket is provided with a movable hole, the inner wall of the movable hole is slidably connected to a movable block, and the movable block is threadedly connected to the outer wall of the screw rod located in the movable hole, and the bottom of the movable block is fixedly connected to a mounting plate, the bottom of the mounting bracket is fixedly connected to a first convex slide rail, the mounting plate is slidably connected to the outer wall of the first convex slide rail, and the bottom of the mounting plate is fixedly connected to the first electric telescopic rod, the output end of the first electric telescopic rod is fixedly connected to the mounting seat, the front end of the mounting seat is fixedly mounted with a second electric telescopic rod through a support, the bottom of the mounting seat is provided with a cross slide rail, the inner wall of the cross slide rail is slidably connected to a cross mounting block, the output end of the second electric telescopic rod is fixedly connected to the cross mounting block, and a disassembly mechanism is installed at the bottom of the cross mounting block. Through the cooperation of the motor, the lead screw, the movable hole, the movable block, the first convex slide rail, the mounting plate, the first electric telescopic rod, the mounting base, the second electric telescopic rod, the cross slide rail, and the cross mounting block, the position of the terahertz wave transmitter can be adjusted forward and backward and left and right, so that detection operations can be performed on different positions of the screen. By detecting different positions, the detection results can be made more accurate, thereby increasing the applicability of the device.

[0012] Preferably, the disassembly and assembly mechanism includes a connecting seat fixedly mounted on the bottom of the cross mounting block, the bottom of the connecting seat is provided with two parallel convex grooves, the inner wall of the convex groove is slidably connected with a convex column, the bottom of the convex column is fixedly installed with a connecting plate, and the bottom of the connecting plate is fixedly installed with a terahertz wave transmitter, and the front end of the side wall on the opposite side of the two convex columns is provided with a first slot, and the front end of the left and right side walls of the connecting seat is provided with a sliding groove, a slider is slidably connected in the sliding groove, and a connecting rod is movably connected inside the slider, the outer end of the connecting rod is fixedly connected to a knob, and the other end of the connecting rod is clamped with the first slot of the convex column, and the outer wall of the connecting rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the outer wall of the slider and the knob at the outer end of the connecting rod.

[0013] Preferably, a second slot is formed on the inner wall of the slide groove close to the convex column, and the connecting rod is adapted to the second slot.

[0014] Preferably, a slide rod is fixedly connected between the front and rear inner walls of the slide groove, the outer wall of the slide rod is slidably connected to the slider, and the inner wall of the slide groove is provided with a snap-in hole, through which the snap-in rod is snap-engaged with the first snap-in groove. The coordination of the connecting seat, convex groove, convex column, connecting plate, terahertz wave emitter, first snap-in groove, slide groove, slide rod, slider, snap-in rod, second spring, and second snap-in groove facilitates manual disassembly of the terahertz wave emitter, thereby facilitating manual inspection and maintenance of the terahertz wave emitter, preventing damage to the terahertz wave emitter that could affect subsequent detection accuracy, and further increasing the applicability of the device.

[0015] Preferably, the fixing mechanism includes two fixing components fixedly mounted on the upper part of the workbench and relatively arranged on both sides of the terahertz wave receiver, the fixing components include two second convex slide rails arranged parallel to the top of the workbench, the outer walls of the second convex slide rails are slidably connected with a movable seat, the upper part of the movable seat is fixedly mounted with a fixed seat through a mounting column, a third electric telescopic rod is fixedly mounted on the top of the fixed seat, the output end of the third electric telescopic rod passes through the top of the fixed seat and is fixedly connected with a pressure plate, the bottom of the pressure plate is fixedly connected with a first anti-slip pad, the bottom of the inner wall of the fixed seat is fixedly connected with a second anti-slip pad, a protective box is fixedly mounted on the upper part of the workbench, a box door is provided at the front of the protective box, and a control terminal is fixedly mounted on the left side of the protective box.

[0016] Preferably, a plurality of adjustment holes arranged at equal intervals are provided on the upper portion of the workbench, and two parallel adjustment rods are movably connected to the top of the movable seat, and the adjustment rods are snap-fitted to the adjustment holes. A connecting block is fixedly connected to the top of the adjusting rod, and a pull rod is fixedly connected between the two connecting blocks. A fourth spring is sleeved on the outer wall of the adjusting rod, and the two ends of the fourth spring are respectively fixedly connected to the movable seat and the connecting block.

[0017] Preferably, a pointer is fixedly connected to the front side wall of the movable seat, and a plurality of graduated grooves are provided on the upper portion of the workbench. The graduated grooves correspond one-to-one with the positions of the adjustment holes and are used to indicate the positions of the adjustment holes. Through the coordination of the second convex slide rail, the movable seat, the fixed seat, the third electric telescopic rod, the pressure plate, the first anti-slip pad, the second anti-slip pad, the adjustment rod, the fourth spring, the adjustment hole, the pointer, and the graduated grooves, the OLED screen can be clamped and fixed, thereby facilitating subsequent inspection operations. The spacing of the movable seat can also be adjusted, thereby clamping and fixing OLED screens of various sizes, further increasing the applicability of the device.

[0018] The present invention provides an OLED screen internal defect detection device using terahertz imaging. The OLED screen internal defect detection device using terahertz imaging has the following beneficial effects:

[0019] (1) The OLED screen internal defect detection device using terahertz imaging can adjust the position of the terahertz wave emitter forward and backward and left and right by setting an adjustment mechanism, so that detection operations can be performed at different positions of the screen. By detecting different positions, the detection results can be made more accurate, thereby increasing the applicability of the device;

[0020] (2) The OLED screen internal defect detection device using terahertz imaging is easy to disassemble the terahertz wave emitter manually by setting a disassembly and assembly mechanism, which is convenient for the inspection and maintenance of the terahertz wave emitter. It can prevent the terahertz wave emitter from being damaged and affecting the subsequent detection accuracy, thereby further increasing the applicability of the device;

[0021] (3) The internal defect detection device for OLED screens using terahertz imaging can clamp and fix the OLED screen by setting a fixing mechanism, thereby making subsequent detection operations more convenient. The spacing of the movable seat can be adjusted to clamp and fix OLED screens of different sizes, further increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall internal structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the disassembly and assembly mechanism structure of the present invention;

[0026] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0027] Figure 6 This is a structural diagram of the fixing mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the present invention;

[0029] In the figure: 1. Workbench; 2. Mounting frame; 3. Connecting assembly; 31. Adjusting mechanism; 311. Motor; 312. Screw; 313. Movable hole; 314. Movable block; 315. First convex slide rail; 316. Mounting plate; 317. First electric telescopic rod; 318. Mounting seat; 319. Second electric telescopic rod; 3110. Cross slide rail; 3111. Cross mounting block; 32. Disassembly and assembly mechanism; 321. Connecting seat; 322. Convex groove; 323. Convex column; 324. Connecting plate; 325. Terahertz wave transmitter; 326. First slot; 327. Slide groove ; 328. Slide rod; 329. Slider; 3210. Connecting rod; 3211. Second spring; 3212. Second slot; 33. Fixing mechanism; 331. Second convex slide rail; 332. Movable seat; 333. Fixed seat; 334. Third electric telescopic rod; 335. Pressing plate; 336. First anti-slip pad; 337. Second anti-slip pad; 338. Adjusting rod; 339. Fourth spring; 3310. Adjusting hole; 3311. Pointer; 3312. Scale groove; 3313. Connecting block; 3314. Protective box; 3315. Control terminal; 4. Terahertz wave receiver. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-7 As shown, the present invention provides a technical solution: an OLED screen internal defect detection device using terahertz imaging, comprising a workbench 1, a mounting frame 2 fixedly mounted on the upper part of the workbench 1, a terahertz wave receiver 4 fixedly mounted on the upper part of the workbench 1, and a connecting component 3 arranged on the upper part of the workbench 1.

[0033] The connecting assembly 3 includes an adjusting mechanism 31 provided at the lower portion of the mounting frame 2, a disassembly mechanism 32 provided at the lower portion of the mounting frame 2, and a fixing mechanism 33 provided at the upper portion of the workbench 1;

[0034] The adjusting mechanism 31 includes a motor 311 fixedly mounted on the right side of the mounting frame 2 through a bracket, a screw rod 312 fixedly connected to the output end of the motor 311, the screw rod 312 is rotatably connected to the mounting frame 2 through a bearing, a movable hole 313 is opened on the upper part of the mounting frame 2, a movable block 314 is slidably connected to the inner wall of the movable hole 313, the movable block 314 is threadedly connected to the outer wall of the screw rod 312 located in the movable hole 313, a mounting plate 316 is fixedly connected to the bottom of the movable block 314, a first convex slide rail 315 is fixedly connected to the bottom of the mounting frame 2, and the mounting plate 316 is slidably connected to the bottom of the mounting frame 2. On the outer wall of the first convex slide rail 315, a first electric telescopic rod 317 is fixedly connected to the bottom of the mounting plate 316, the output end of the first electric telescopic rod 317 is fixedly connected to the mounting seat 318, and the front end of the mounting seat 318 is fixedly mounted with a second electric telescopic rod 319 through a support. A cross slide rail 3110 is provided at the bottom of the mounting seat 318, and a cross mounting block 3111 is slidably connected to the inner wall of the cross slide rail 3110. The output end of the second electric telescopic rod 319 is fixedly connected to the cross mounting block 3111, and a disassembly mechanism 32 is installed at the bottom of the cross mounting block 3111.

[0035] In this embodiment, through the cooperation of the motor 311, the screw 312, the movable hole 313, the movable block 314, the first convex slide rail 315, the mounting plate 316, the first electric telescopic rod 317, the mounting seat 318, the second electric telescopic rod 319, the cross slide rail 3110, and the cross mounting block 3111, the position of the terahertz wave transmitter 325 can be adjusted forward and backward and left and right, so that detection operations can be performed at different positions of the screen. By detecting different positions, the detection results can be made more accurate, thereby increasing the applicability of the device.

[0036] Example 2

[0037] On the basis of Example 1, a preferred embodiment of the OLED screen internal defect detection device using terahertz imaging provided by the present invention is as follows: Figures 1 to 6As shown: the disassembly and assembly mechanism 32 includes a connecting base 321 fixedly mounted on the bottom of the cross mounting block 3111, and two parallel convex grooves 322 are provided at the bottom of the connecting base 321. The inner wall of the convex groove 322 is slidably connected to a convex column 323, and a connecting plate 324 is fixedly mounted on the bottom of the convex column 323. A terahertz wave transmitter 325 is fixedly mounted on the bottom of the connecting plate 324. The terahertz wave transmitter 325 is located above the terahertz wave receiver 4; a first slot 326 is provided at the front end of the side wall on the opposite side of the two convex columns 323, and a slide groove 327 is provided at the front end of the left and right side walls of the connecting base 321. The slide groove 327 is close to the convex column 3 The inner wall of 23 is provided with a second slot 3212 and a slotting hole adapted for the connecting rod 3210, a sliding rod 328 is fixedly connected between the front and rear inner walls of the sliding groove 327, a slider 329 is slidably connected to the outer wall of the sliding rod 328, the inner part of the slider 329 is movably connected to the connecting rod 3210, the outer end of the connecting rod 3210 is fixedly connected to a knob, the other end of the connecting rod 3210 is clipped with the first slot 326 of the convex column 323 through the slotting hole, a second spring 3211 is sleeved on the outer wall of the connecting rod 3210, and the two ends of the second spring 3211 are fixedly connected to the outer wall of the slider 329 and the knob at the outer end of the connecting rod 3210 respectively. When the connecting rod 3210 moves outward away from the first slot 326, the second spring is in a stretched state. When the connecting rod 3210 is engaged with the first slot 326, the second spring 3211 will shrink and return to its natural state, or be in a slightly stretched state so that the connecting rod is subjected to an inward force, thereby enabling the connecting rod to be engaged with the first slot.

[0038] In this embodiment, through the cooperation of the connecting seat 321, the convex groove 322, the convex column 323, the connecting plate 324, the terahertz wave emitter 325, the first slot 326, the slide groove 327, the slide rod 328, the slider 329, the connecting rod 3210, the second spring 3211, and the second slot 3212, the terahertz wave emitter 325 can be easily disassembled manually, and the terahertz wave emitter 325 can be easily inspected and maintained.

[0039] Example 3

[0040] On the basis of Example 1, a preferred embodiment of the OLED screen internal defect detection device using terahertz imaging provided by the present invention is as follows: Figures 1 to 6As shown: the fixing mechanism 33 includes two fixing components fixedly installed on the upper part of the workbench 1 and relatively arranged on both sides of the terahertz wave receiver 4, the fixing components include two second convex slide rails 331 arranged parallel to the top of the workbench 1, the outer wall of the second convex slide rail 331 is slidably connected to a movable seat 332, the upper part of the movable seat 332 is fixedly installed with a C-shaped fixed seat 333 through a mounting column, the top of the fixed seat 333 is fixedly installed with a third electric telescopic rod 334, the output end of the third electric telescopic rod 334 passes downward through the top of the fixed seat 333 and is fixedly connected to a pressure plate 335, the bottom of the pressure plate 335 is fixedly connected to a first anti-slip pad 336, and the bottom of the inner wall of the fixed seat 333 is fixedly connected to a second anti-slip pad 337; the top of the movable seat 332 is movably connected to two parallel adjustment rods 338, and the top of the adjustment rod 338 is fixedly connected There is a connecting block 3313, and a pull rod is fixedly connected between the two connecting blocks 3313. The outer wall of the adjusting rod 338 is sleeved with a fourth spring 339. The two ends of the fourth spring 339 are respectively fixedly connected to the movable seat 332 and the connecting block 3313. The front side wall of the movable seat 332 is fixedly connected with a pointer 3311. The upper part of the workbench 1 is provided with a plurality of equally spaced adjusting holes 3310 along the direction of the second convex slide rail. The bottom end of the adjusting rod 338 is snap-fitted with the adjusting hole 3310. The upper part of the workbench 1 is provided with a plurality of scale grooves 3312. The scale grooves 3312 correspond one-to-one to the positions of the adjusting holes 3310 and are used to indicate the positions of the adjusting holes. A protective box 3314 is fixedly installed on the upper part of the workbench 1. A box door is provided at the front of the protective box 3314. A control terminal 3315 is fixedly installed on the left side of the protective box 3314.

[0041] In this embodiment, through the cooperation of the second convex slide rail 331, the movable seat 332, the fixed seat 333, the third electric telescopic rod 334, the pressure plate 335, the first anti-slip pad 336, the second anti-slip pad 337, the adjustment rod 338, the fourth spring 339, the adjustment hole 3310, the pointer 3311, and the scale groove 3312, the OLED screen can be clamped and fixed, which is convenient for subsequent detection operations, and the spacing of the movable seat 332 can be adjusted to clamp and fix OLED screens of different sizes, further increasing the applicability of the device.

[0042] The working principle of the present invention is as follows:

[0043] When in use, the spacing of the fixing seat 333 is first adjusted. By manually holding the pull rod and pulling the adjustment rod 338 upward, the adjustment rod 338 can be separated from the adjustment hole 3310. At this time, the fourth spring 339 is in a stretched state. Subsequently, under the action of the second convex slide rail 331, the movable seat 332 is moved to drive the fixing seat 333, so that the spacing of the fixing seat 333 can be adjusted. With the cooperation of the pointer 3311 and the scale groove 3312, it can be adjusted accordingly according to the size of the OLED screen, and OLED screens of different sizes can be clamped and fixed, further increasing the applicability of the device. When the fixing seat 333 is adjusted to a suitable position, the adjustment rod 338 is manually inserted into the corresponding adjustment hole 3310. At this time, the fourth spring 339 will contract and return to its natural state, or be in a slightly stretched state, so that the adjustment rod 338 is subjected to an inward force, so that the adjustment rod 338 is engaged with the adjustment hole 3310, which can achieve the fixing effect of the movable seat 332, and the adjustment operation can be completed. The adjustment operation is simple and convenient.

[0044] Next, the OLED screen is fixed by manually placing it on the second anti-slip pads 337 in the two fixing seats 333. Then, the third electric telescopic rod 334 drives the pressing plate 335 to move downward, thereby clamping and fixing the OLED screen.

[0045] Subsequently, the first electric telescopic rod 317 drives the mounting seat 318 to move downward, thereby causing the terahertz wave transmitter 325 to move downward synchronously. With the cooperation of the terahertz wave transmitter 325 and the terahertz wave receiver 4, the OLED screen can be inspected. The motor 311 drives the screw rod 312 to rotate, so that the movable block 314 threadedly connected to the outer wall of the screw rod 312 drives the mounting plate 316 to adjust left and right. The second electric telescopic rod 319 drives the cross mounting block 3111 to move within the cross slide 3110, so that the connecting seat 321 fixed to the lower part of the cross mounting block 3111 can be adjusted forward and backward. In addition, the terahertz wave transmitter 325 can be adjusted forward, backward, left and right, so that different positions of the OLED screen can be inspected, which can make the inspection results more accurate. The first electric telescopic rod 317, the second electric telescopic rod 319, and the third electric telescopic rod 334 are all electrically connected to the control terminal 3315 and can be directly controlled by the control terminal 3315, thereby increasing the applicability of the device.

[0046] When the terahertz wave transmitter 325 needs to be disassembled, the clamping rod 3210 can be manually pulled outward to disengage the clamping rod 3210 from the first clamping groove 326 and the clamping hole. Then, the clamping rod 3210 is manually pulled to drive the slider 329, so that the slider 329 can slide in the slide groove 327 through the slide rod 328. Then, the clamping rod 3210 is manually clamped with the second clamping groove 3212, so that the clamping rod 3210 stays at a position away from the first clamping groove 326 and the clamping hole, freeing the hands. Then, the connecting plate 324 can be taken outward to remove the terahertz wave transmitter 325, making it convenient to inspect and maintain the terahertz wave transmitter 325, preventing the terahertz wave transmitter 325 from being damaged and affecting the accuracy of subsequent detection. In addition, the protective box 3314 can provide a protective effect to prevent the radiation generated during terahertz wave detection from causing harm to the staff, further increasing the applicability of the device.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An OLED screen internal defect detection device, characterized by: including a workbench (1); A mounting frame (2) fixedly mounted on the upper portion of the workbench (1); A terahertz wave receiver (4) fixedly mounted on the upper portion of the workbench (1); and a connecting assembly (3) arranged on the upper part of the workbench (1); The connecting assembly (3) comprises an adjusting mechanism (31) provided at the lower portion of the mounting frame (2); a disassembly mechanism (32) is provided at the lower portion of the mounting frame (2); and a fixing mechanism (33) is provided at the upper portion of the workbench (1); The adjustment mechanism (31) includes a motor (311) fixedly mounted on the right side of the mounting frame (2) through a bracket, the output end of the motor (311) is fixedly connected to a screw rod (312), the screw rod (312) is rotatably connected to the mounting frame (2) through a bearing, a movable hole (313) is opened on the upper part of the mounting frame (2), the inner wall of the movable hole (313) is slidably connected to a movable block (314), the movable block (314) is threadedly connected to the outer wall of the screw rod (312) located in the movable hole (313), the bottom of the movable block (314) is fixedly connected to a mounting plate (316), the bottom of the mounting frame (2) is fixedly connected to a first convex slide rail (315), the mounting plate (316) is fixedly connected to the bottom of the mounting frame (2), and the mounting plate (316) is fixedly connected to the bottom of the mounting frame (2). ) is slidably connected to the outer wall of the first convex slide rail (315), the bottom of the mounting plate (316) is fixedly connected to the first electric telescopic rod (317), the output end of the first electric telescopic rod (317) is fixedly connected to the mounting seat (318), the front end of the mounting seat (318) is fixedly mounted with the second electric telescopic rod (319) through a support, the bottom of the mounting seat (318) is provided with a cross slide rail (3110), the inner wall of the cross slide rail (3110) is slidably connected to the cross mounting block (3111), the output end of the second electric telescopic rod (319) is fixedly connected to the cross mounting block (3111), and the bottom of the cross mounting block (3111) is installed with a disassembly mechanism (32).

2. The OLED screen internal defect detection device according to claim 1, characterized in that: The disassembly and assembly mechanism (32) comprises a connecting seat (321) fixedly mounted on the bottom of a cross mounting block (3111); two parallel convex grooves (322) are provided at the bottom of the connecting seat (321); a convex column (323) is slidably connected to the inner wall of the convex groove (322); a connecting plate (324) is fixedly mounted on the bottom of the convex column (323); a terahertz wave transmitter (325) is fixedly mounted on the bottom of the connecting plate (324); a first slot (326) is provided at the front end of the side wall on the opposite side of the two convex columns (323); and the left and right sides of the connecting seat (321) are provided with a convex column (323). A sliding groove (327) is provided at the front end of the wall, a slider (329) is slidably connected in the sliding groove (327), a clamping rod (3210) is movably connected inside the slider (329), the outer end of the clamping rod (3210) is fixedly connected with a knob, the other end of the clamping rod (3210) is clamped with the first clamping groove (326) of the convex column (323), and the outer wall of the clamping rod (3210) is sleeved with a second spring (3211), and the two ends of the second spring (3211) are respectively fixedly connected to the outer wall of the slider (329) and the knob at the outer end of the clamping rod (3210).

3. The OLED screen internal defect detection device according to claim 2, characterized in that: The sliding groove (327) is provided with a second clamping groove (3212) on the inner wall close to the convex column (323), and the clamping rod (3210) is adapted to the second clamping groove (3212).

4. The OLED screen internal defect detection device according to claim 2, characterized in that: A sliding rod (328) is fixedly connected between the front and rear inner walls of the sliding groove (327), and the outer wall of the sliding rod (328) is slidably connected to the slider (329). A clamping hole is opened on the inner wall of the sliding groove (327), and the clamping rod (3210) is clamped with the first clamping groove (326) through the clamping hole.

5. The OLED screen internal defect detection device according to claim 1, characterized in that: The fixing mechanism (33) comprises two fixing components fixedly mounted on the upper portion of the workbench (1) and relatively arranged on both sides of the terahertz wave receiver (4), the fixing components comprising two second convex slide rails (331) arranged in parallel on the top of the workbench (1), the outer wall of the second convex slide rail (331) being slidably connected to a movable seat (332), the upper portion of the movable seat (332) being fixedly mounted with a fixing seat (333) via a mounting column, and the top of the fixing seat (333) being fixedly mounted with a third electric telescopic rod (334) The output end of the third electric telescopic rod (334) passes through the top of the fixed seat (333) and is fixedly connected to a pressure plate (335). The bottom of the pressure plate (335) is fixedly connected to a first anti-slip pad (336). The bottom of the inner wall of the fixed seat (333) is fixedly connected to a second anti-slip pad (337). A protective box (3314) is fixedly installed on the upper part of the workbench (1). A box door is provided at the front of the protective box (3314). A control terminal (3315) is fixedly installed on the left side of the protective box (3314).

6. The OLED screen internal defect detection device according to claim 5, characterized in that: The upper part of the workbench (1) is provided with a plurality of adjustment holes (3310) arranged at equal intervals. The top of the movable seat (332) is movably connected to two parallel adjustment rods (338). The adjustment rods (338) are engaged with the adjustment holes (3310). The top of the adjustment rod (338) is fixedly connected to a connecting block (3313), and a pull rod is fixedly connected between the two connecting blocks (3313). The outer wall of the adjustment rod (338) is provided with a fourth spring (339). The two ends of the fourth spring (339) are fixedly connected to the movable seat (332) and the connecting block (3313) respectively.

7. The OLED screen internal defect detection device according to claim 6, characterized in that: A pointer (3311) is fixedly connected to the front side wall of the movable seat (332), and a plurality of scale grooves (3312) are provided on the upper part of the workbench (1). The scale grooves (3312) correspond to the positions of the adjustment holes (3310) one by one and are used to indicate the positions of the adjustment holes (3310).

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