KR200389313Y1 - Movable and adjustable apparatus for automatically detecting image quality by movable position of LCD module - Google Patents

Abstract

The present invention is an automatic detection device that is variably adjusted according to a variable position of a liquid crystal display module (LCM), and includes a pair of parallel bed guide rails, one of which is a substrate of a distance detector and a charge-capped device (CCD) camera. The board is used as a driver that runs on the guide rail, and the board slides through the set route of the guide rail so that the distance detector approaches the object (LCM) to detect the position or angle between the objects. Deviation values are measured and sent to one central control system, where the computer software of the central control system operates by calculating and operating one substrate control mechanism, and the substrate is automatically compensated for the CCD camera of the detected object to obtain accurate measurement screens. The main feature is that this board adjusting mechanism includes at least three sets of multiple axes, each in a 1: 2 ratio. It is installed on both sides of the board, among which the first multi-axis is the point where there is no reserve power , and the second and third multi-axis are each one driver to move the board together, and the substrate moves or rotates slightly in any designated direction. Proceed until the camera has completely corrected the LCM.

Description

Movable and adjustable apparatus for automatically detecting image quality by movable position of LCD module

The image quality automatic detection device, which is variably adjusted according to the variable position of the liquid crystal display module of the present invention, is an automatic detection device that automatically corrects its position according to the object to be detected, and the distance, position or angle between the detection device and the object to be detected is changed. It means to correct the deviation so that the automatic detection device completely fits the detected object and perform the measurement work automatically and accurately.

In the early stages of liquid crystal display module (LCM) image quality measurement, the human eye was mainly judged by manpower. The liquid crystal display module was transmitted to the naked eye detector through a transport platform and visually measured by a microscope installed on the expectation. After the display module is turned on, defects such as whether there is a break point (MURA) and dot (LINE) are measured, and after the measurement is completed, it is transmitted to the data output device through the transport platform. In this case, quality control of visual measurement is difficult, slow, and easily misjudged, affecting the quality of the finished product.

Therefore, in order to improve the quality inspection efficiency of the above-described products and meet the demand for automated quality control, the inventor has already devised the patent of Korean Utility Model Registration No. 0325961 by devising "Automatic image quality detection device after the liquid crystal display panel is lit." . This patent proposes, "After moving the fixed point of movement up and down or Daewoo through the bed exercise equipment, the position is fixed to the top of the device in order by still shooting method through a plurality of digital cameras. Fully automated measurement of the image ".

Although the above-described automatic detection apparatus has already greatly increased the efficiency of quality inspection and has been widely received by the user, the inventors are not satisfied with this, and the goods to be transported on the transport table and the transport mounting mechanism of the liquid crystal display module production line. As the digital camera does not provide accurate position fixation for the LCD display module (LCM) screen, the position and angle deviation often occur and it is not matched to lose the realism, which is directly analyzed and read by computer software. I think it needs to be improved because it affects the results.

The present invention, in addition to paying attention to the production line workers manually to solve the error problem occurs during the quality inspection because the liquid crystal display module (LCM) is not accurately positioned on the production line, The automatic correction function is added to the automatic detection device to actively submit an improvement plan. The automatic detection device automatically compensates and corrects the CCD camera so that the accurate detection screen can be captured on the detected object (LCM). Is the main purpose.

In order to achieve the above object, the present invention includes a pair of parallel guide rails, a substrate having a distance sensor and a CCD camera, a driver for driving the substrate in the guide rail, and This driver allows the substrate to slide in the route set on the guide rail so that the distance detector approaches the object to be detected (LCM) to measure the distance, position and angle deviation from the object to be transmitted to the central control system. The computer software of the central control system makes calculations and activates the substrate adjusting mechanism so that the substrate can automatically compensate for and modify the detected object so that the CCD camera can accurately capture the detection screen.

The adjusting mechanism of the substrate includes at least three sets of multiple axes, each of which is provided on both sides of the substrate in a ratio of 1: 2, wherein the first multiple axis has no driving means, and the second and third multiple axes each have one driver. Moves the substrate together to cause the substrate to move or rotate in either designated direction until the CCD camera completely modifies the detected object LCM.

As shown in FIG. 1, the liquid crystal display module (LCM) automatic detection device 1 of the present invention is installed on the product transport rail 11 of the production line through one base 10, and the rail 11 is a mounting mechanism. 12, the finished product of the liquid crystal display module 13 is mounted, and since the mounting mechanism 12 has no fixed arrangement position or accurate position fixing method, the mounted liquid crystal display module 13 has an automatic detection device 1 When passing through, since the distance, position or angle between the automatic detection device 1 is not fixed, the automatic detection device 1 of the present invention is designed in such a way as to automatically modify to fit the detected object (LCM). Therefore, no error occurs in the detection result.

Referring to FIG. 2, this is a main structural diagram of a detection device that automatically corrects for an object to be detected of the present invention.

As shown in the figure, the device comprises a pair of parallel and symmetrical stools 20 and an induction rail 201, a substrate 30 having a distance sensor 31 and a CCD camera 32 and The first driver 21 for driving the substrate 30 by driving it in the induction rail 201, and the substrate 30 slides on the route set by the induction rail 201 through the first driver 21. By moving it so that the distance detector 31 approaches the detected object (LCM) 13 to measure the distance, position and angular deviation with the detected object and transmit it to one central control system (not shown). The computer software of the central control system calculates and activates the substrate adjusting mechanism 4 (described below) so that the substrate 30 automatically compensates for and corrects the detected object so that the CCD camera 32 accurately detects the screen. Allow the harvest to take place.

In the above description, the first driver 21 includes a first servo motor 211, a shaft connector 212, a first ball screw 213, and an induction piece 210, among which an induction piece 210. One end of the substrate 30 is connected to each other by a slide 301 between the substrate 30 and the substrate 30 is connected to the bed 20 and the guide rail 201 through the slide 301. It is operated in the guide rail 201 in a coupled shape, the other end of the guide piece 210 is screwed in the first ball screw 213, also guided through the rotation of the first ball screw 213 The pieces 210 move together to generate a position shift. In addition, the first ball screw 213 is the first ball screw through the axial center connection of one shaft connecting device 212 and one first servo motor 211, that is, when the motor 211 is in operation. 213 moves together to rotate, and further pulls the substrate 30 which is interlocked with the guide piece 210 to generate a linear position movement.

Since the above-described substrate 30 is automatically moved in position, the distance detector 31 suspended from one side of the substrate 30 by the support 311 is detected. LCD module) and the distance detector 31 transmits to the central control system (not shown in the drawing) whether the distance, position and angle with the measured object are correct, and transmits the deviation value to the central control system. After the computer software calculates the signal, it transmits the signal to the substrate adjusting mechanism 4, and the substrate 30 is controlled to move and correct the direction in the direction corresponding to the detected object.

After the above-described distance detector 30 detects the position, angle or deviation between the objects to be detected, the central control system immediately sends an electronic signal to the substrate adjusting mechanism 4 to avoid the orientation of the substrate 30. And aimed at the detection object (LCM) 13, and the substrate adjusting mechanism 4 mainly includes at least three sets of multiple axes 41, 42 and 43, which are each in a ratio of 1: 2. It is installed on both sides 33 and 34 of the board 30 and the guide rail 201 of the substrate 30, of which the first multi-axis 41 has no driving means, and the second and third multi-axis 40, 43 ), Each driver moves the substrate 30 together, causing the substrate 30 to move or rotate in any one of the specified directions so that the CCD camera 32 completely modifies the detected object (LCM) 31. Proceed to

Referring to Figures 3 and 4, this is the main structural diagram of the above-described first multiple axis (41).

As shown in the drawing, the first multi-purpose shaft 41 abuts the first shaft 411, the first moving arm 412, the first shaft 411, and the first moving arm 412. And a first bushing 413 and a first multiple bearing 414, wherein one end of the first shaft 411 is connected to the slide 301 described above, and the other end of the first moving arm ( The other end of the first moving arm 412 is connected to the substrate 30 described above.

The first axle 411 and the first moving arm 412 are in contact with each other through a first bushing 413 and a first plural bearing 411. The first plural bearing 414 has a first bushing 413. It is covered with one end of the outer periphery, and buried in the first shaft 411 at the same time.

The first bushing 413 is sandwiched between the first shaft 411 and the first moving arm 412, and the first bushing 413 and the first plural bearing 414 are respectively fastened by two screws 415 and 416. Through and fixed to the first bushing 413, the first moving arm 412, the first plural bearing 414 and the first bushing 413, respectively, the first moving arm 412 is relatively a first shaft ( 411 shakes or rotates in various directions.

5 to 7, this is the main layout of the second and third multi-axial axes 42 and 43 and a structural diagram therein.

As illustrated in FIGS. 5 and 6 (refer to FIG. 8 at the same time), the second and third multiplexed shafts 42 and 43 may include the second and third shafts 421 and 431, the second and third multiplexed bearings 422 and 432, respectively. And second and third bushings 423 and 433, and the second and third shafts 421 and 431 are identically provided through the second and third plural bearings 422 and 432 and the second and third bushings 423 and 433. In contact with each other at different positions, the second and third shafts 421 and 431 have a relationship in which the second moving arm 44 cooperates with each other. The second moving arm 44 is also connected to the above-described substrate 30 (see FIG. 2 at the same time), so that the substrate 30 and the second and third shafts 421 and 431 have the same interlocking relationship.

Referring to FIG. 7 at the same time, this is a structural diagram of a contact relationship between the second moving arm 44 and the second shaft 421.

As shown in the drawing (see FIG. 8 at the same time), the second plural bearing 422 is embedded in the second axle 421, in which the second bushing 423 is covered, and one screw 425, and the other end of the second bushing 423 is connected to the second moving arm 44 by the other screw 424. The second bushing 423 can swing in any direction because it has one shaft 4221 in the second multiple bearing 422.

Therefore, in a situation in which the second moving arm 44 is driven, it can be shaken or rotated in any direction. Since the connection between the third shaft 431 and the second moving arm 44 is completely the same as the second shaft 421, it will not be described separately.

In addition to the above, one guide plate 45 is installed between the second and third multiplexed shafts 42 and 43 and the adjacent guide rail 201, and the guide plate 45 is provided with a guide rail 201 and The state of sliding arrangement is provided. One sliding groove 451 is shown to show that the guide plate 45 slides on the guide rail 201. One end of the guide plate 45 extends into one first slide 452 in a direction parallel to the third shaft 431, and one guide between the first slide 452 and the third shaft 431. One sliding piece 453 is provided, and is connected to the sliding rail 471 between the third shaft 431 and the first sliding piece 453, and this third shaft 431 is the first sliding. The sliding connection relationship with the first slide 452 is exposed against the piece 453 so that the substrate 30 is properly extended when the substrate 30 is operated.

In addition, the third shaft 431 slides in the Z-axis direction of the three-dimensional space within the first slide 452 through the first sliding piece 453. The guide plate 45 is provided with one sliding groove 454 on one side of the substrate 30, and the sliding groove 454 is slidingly connected to the other sliding plate 46. One end of the sliding plate 46 is provided with one second slide 461 extending in a direction parallel to the second shaft 421, and between the second sliding plate 461 and the second shaft 421. Separately, one second sliding piece 462 is slidingly connected, and the second sliding piece 421 and the second sliding piece 462 are also connected to each other by the sliding rail 472, so that the second shaft 421 is a substrate. Proper extension is also possible when operating at 30, and the second shaft 421 slides in the Z-axis direction of the three-dimensional space within the second slide 641 through the second sliding piece 462. .

The upper surface of the sliding plate 46 is connected to one second driver 5, and the second driver 5 is one second servo motor 50, a shaft jointer 51, and a second ball. It includes a screw 52 and one guide piece 53, of which guide piece 53 is in contact with the sliding plate 46, the other end of the guide piece 53 is the second ball screw 52 ), That is, by moving the guide piece 53 together through the rotational motion of the second balls 52 to generate a position movement, the second ball screw 52 is a single shaft joint (51) is connected to the shaft center of the second servo motor 50, that is, when the second servo motor 50 is operated when the shaft center moves the second ball screw 52 together to rotate and further guide ( 53) pulls the sliding plate 46 in cooperation with each other to generate a linear position shift.

8 and 9, the sliding plate 46 which is interlocked when the second driver 5 operates to pull the second moving arm 44 to rotate in any one specific direction, the second multiple axis The second moving arm 44 is connected to the second moving arm 44 at one point by the 42 and the third multiple axis 43, and thus the process of moving the second multiple axis 42 of the adjacent second driver 5 is It is longer than the three-way shaft 43 (see FIG. 9).

Referring to the embodiment illustrated in FIG. 2, the operation of the second driver 5 causes the second moving arm 44 to interlock with the substrate 30. The first moving arm 412 is interlocked with the first multi-axis 41 as a point so that the substrate 30 rotates in the Y-axis direction in the Z-axis of the three-dimensional space.

In other words, after the illustrated distance detector 31 detects the distance, position or angle deviation from the object to be detected, the central control system immediately sends an electronic signal to the substrate adjusting mechanism (here, the second driver 5). The CCD 30 is mounted on the substrate 30 so that the substrate 30 moves toward the inclined angle or position of the object to be detected (LCM) 13 so that the substrate 30 is completely adapted to the object to be detected 13. Will be tailored.

In other words, the distance between the individual CCD camera 32 and the object to be detected 13 is parallel and properly adjusted to take an image, thereby preventing a state of losing realism due to inconsistency. This adjustment operation described above can also refer to Figs. 10 and 11, when there is a deviation between the position on the production line of the detected object 13 and the setting of the original CCD camera 32 (indicated by α angle in Fig. 10). That is, the substrate 30 is adjusted toward the deviation angle with the object to be detected 13 by the operation of the second driver 5 (exemplified in FIG. 11). It can be supplemented and corrected so that the contents taken from the CCD camera 32 are revealed in the most clear state.

5 and 6 again, a third driver 6 is mounted on the upper surface of the first slide 452, which is the same as the second driver 5 in the third servo. It has a motor 60, a shaft connector 61, a second ball screw 62 and one guide piece 63, of which guide piece 63 is in contact with the first sliding piece 453, The other end of the guide piece 453 is screwed to the third ball screw 62, that is, the guide piece 63 is moved together to generate a position shift through the rotation of the third ball screw 62.

In addition, the third ball screw 62 is connected to the shaft center of the third servo motor 60 through one shaft connector 61. In other words, when the motor 60 is operated, the third ball screw 62 is rotated together with its axis to rotate, and further, the linear movement is performed by the first sliding piece 453 to which the guide piece 63 is interlocked. (See Figures 12 and 13 at the same time for the location and connection of the relevant components).

12 and 13, when the third driver 6 is operated, the interlocked first sliding piece 453 pulls the second moving arm 44 to generate a position shift in one specific direction. (See Figure 13). Referring to the embodiment illustrated in FIG. 2, the operation of the third driver 6 links the second moving arm 44 to the substrate 30 and the first moving arm with the first multiple axis 41 as the point. 412 is interlocked to cause the substrate 30 to rotate in the Y-axis direction in the Z-axis of the three-dimensional space.

In other words, after the above-described distance detector 31 measures the position or the angular deviation with the object to be detected, the central control system transmits one electronic signal to the adjusting mechanism of the substrate 30 (here, the third driver 6). To move the substrate 30 in the direction of the inclined angle or position of the detected object LCM, and the CCD camera 32 mounted on the substrate 30 completely detects the detected object 13. To match. In other words, the distance between each CCD camera 32 and the object to be detected 13 is parallel to each other to prevent a loss of realism by inconsistency when taking an image.

This adjustment operation described above can be referred to simultaneously in FIGS. 14 and 15.

When there is a deviation between the position on the production line of the object to be detected 13 and the setting of the original CCD camera 32 (indicated by β angle in FIG. 14), that is, the substrate 30 is moved by the operation of the third driver 6. It adjusts toward the direction of the deviation angle with the to-be-detected object 13 (illustration in FIG. 15). In other words, the automatic detection device of the present invention can be automatically compensated and corrected in advance so that the contents taken from the CCD camera 32 can be revealed in the most clear state.

On the other hand, it should be noted that the fourth driver 7 is added to one side of the pedestrian guide rail 201 adjacent to the second and third multiplexed shafts 42 and 43, which can be referred to at the same time as FIGS. have.

The fourth driver 7 has a fourth servomotor 70, a shaft connector 71, a fourth ball screw 72 and one guide piece 73, similarly to the above-described driver, among which The guide piece 73 is connected to each other with the above-described guide plate 45, the other end of the guide piece 73 is screwed to the fourth ball screw 72, that is, the fourth ball screw 72 By moving the guide piece (73) together through the rotational motion of the position movement occurs. In addition, the fourth ball screw 72 is connected to the shaft center of the fourth servo motor 70 through one shaft jointer 71, that is, the fourth servo motor 70 is operated with the shaft center when it is operated. The four ball screw 72 moves together to rotate, and furthermore, the guide piece 73 receives the traction of the linkage to generate the position movement on the guide plate 45.

16 and 17 illustrate that when the fourth driver 7 is operated, the interlocking guide plate 45 pulls the second moving arm 44 to generate position movement in one specific direction.

Referring to the embodiment illustrated in FIG. 2, the second moving arm 44 is interlocked with the substrate 30 only by the operation of the fourth driver 7 (the first driver 21 is not operated). The first moving arm 412 is interlocked with the first multiple axis 41 as a point so that the substrate 30 rotates in the Y-axis direction of the three-dimensional space.

In other words, after the above-described distance detector 31 measures the position or angle deviation (ie, θ angle in the drawing) with the object to be detected, the central control system sends one electronic signal to the adjusting mechanism of the substrate 30 (here To the fourth driver 7 so that the substrate 30 moves in the direction of the inclined angle or position of the detected LCM, and the CCD camera 32 mounted on the substrate 30 It is made to fully fit the to-be-detected object 13.

In other words, the distance between each CCD camera 32 and the object to be detected 13 is parallel to each other to prevent a loss of realism by inconsistency when taking an image. In other words, when the position of the production line of the object to be detected 13 and the setting and deviation of the CCD camera 32 are generated (see FIG. 16), the substrate 30 is moved through the operation of the fourth driver 7. The deviation angle (θ angle in the figure) of the object to be detected 13 is adjusted (see FIG. 17), that is, the CCD camera 32 is automatically compensated and corrected in advance by the automatic detection device of the present invention. Make your collection reveal realism.

The above description and drawings are only embodiments using the technical means of the present invention, and are not intended to limit the scope of the present invention. Any changes and modifications based on these technical means and scope are to be considered within the scope of the present invention.

In summary, the automatic detection device of the present invention clearly has an automatic complement and correction function in advance, and there is no blind spot because the angle and azimuth of the supplement and correction are made through full consideration, and more importantly, a CCD camera. When the position of the 32 is corrected, the substrates 30 of the plurality of cameras 32 can be mounted to be electrically moved or rotated so that the distance between the object of the individual CCD camera 32 and the object to be detected is adjusted. There is no deviation, so the measured result is accurate and certain.

1 is a perspective view of the automatic detection device of the present invention installed

2 is a perspective view of the overall appearance of the automatic detection device of the present invention

3 is a structural diagram of a first multiple axis and a first moving arm of the present invention

4 is a cross-sectional view taken along the line A-A 'of FIG. 3 and shows the operating state of the first multiple axis and the first moving arm.

5 is a perspective view of one-way structure relationship between the second and third multiple axes and the second moving arm of the present invention;

Figure 6 is a perspective view of the structure relationship between the second and third multi-axis and the second moving arm of the present invention

7 is a coupling relationship between the second multiple axis and the second moving arm of the present invention

8 is a one-way coupling relationship between the second and third multi-axis and the second and third drivers of the present invention;

9 is a view illustrating the interlocking relationship between the second and third multi-axis and the second moving arm corresponding to each other after the second actuator of the present invention operates.

10 is a side view illustrating a state in which the detected object and the position or angle of the automatic detection device of the present invention are not modified.

11 is a side view showing a state in which the automatic detection device is modified to fit the object to be detected after the second driver of the present invention is operated.

12 is a diagram showing the coupling relationship between the second and third multi-axis and the second and third drivers of the present invention.

Figure 13 is a relationship between the motion of the second moving arm and the parts corresponding to each other after the third actuator of the present invention is operated

14 is a front view showing a state in which the detected object and the position or angle of the automatic detection device of the present invention are not modified.

15 is a front view showing a state in which the automatic detection device is modified to fit the detected object after the third driver of the present invention is operated.

Fig. 16 is a plan view showing a state in which the detected object and the position or angle of the automatic detection device of the present invention are not corrected (in particular, the positional relationship of the fourth driver is shown in the drawing).

17 is a plan view illustrating a state in which an automatic detection device is operated to operate according to an object to be detected after the fourth driver of the present invention is operated.

** Explanation of symbols for main parts of drawings **

1 ： Automatic detection device 10 ： Expectation

11: Transport rail 12: Mounting mechanism

13: detectable object (LCM) 20: bed

201 ： Induction rail 21 ： The first driver

211 ： First Servo Motor 212 ： Axial Joint

213: The first ball screw 210: Induction edition

30: Board 301: Slide stand

31: Distance detector 32: CCD camera

311: Support 4: Board adjustment mechanism

41: 1st round shaft 411: 1st shaft stand

412 ： first moving arm 413 ： first bushing

414: 1st multi-member bearing 415,416: screw

42: 2nd multiple axis 421: 2nd axis

422: 2nd multi-member bearing 423: 2nd bushing

43: third round shaft 431: third shaft stand

432: 3rd multi-member bearing 433: 3rd bushing

44: The second moving arm 45: Induction board

451,454: Slide groove 452: The first slide

453: The first sliding flight 46: Sliding board

461: The second slide 462: The second slide

471,472: sliding rail 5: second drive

50: 2nd servo motor 51: Shaft jointing machine

52: The second ball screw 53: Induction edition

6: 3rd drive 60: 3rd servo motor

61: shaft joint 62: 3rd ball screw

63: Induction flight 7: Fourth drive

70: fourth servomotor 71: shaft joint

72: fourth ball screw 73: guided flight

Claims (5)

It includes a pair of parallel guided rails, one of which is equipped with a distance sensor and a camera's board, which serves as a driver that runs on the guide rail. By sliding, the distance detector approaches the object and measures the distance, position or angular deviation value between the objects to be sent to one central control system, and the computer software of the central control system Operation and calculation, and the board automatically compensates for and corrects the detection camera to obtain an accurate detection screen. The substrate adjusting mechanism includes at least three sets of multiple plural shafts, each of which is installed at both sides of the substrate in a ratio of 1: 2, wherein the first poly plural shaft is a point where there is no reserved power, and the second and third plural shafts are each The image quality is automatically adjusted according to the variable position of the liquid crystal display module, which moves the substrate together as a driver and causes the substrate to move or rotate slightly in any designated direction so that the camera completely fits and corrects the detected object. Device. 2. The apparatus of claim 1, wherein the first driver comprises a first servomotor, a shaft connector, a first ball screw, and an induction piece, the one end of the induction piece being connected to one slide between the substrate and the substrate being the same. It runs on the guide rail in the shape of engaging with the guide bed guide rail through the slide, and the other end of the guide piece is screwed to the first ball screw, The first multiple shaft includes a first shaft, a first moving arm, a first bushing for abutting the first shaft and the first moving arm, and a first multiple bearing, wherein one end of the first shaft is connected to the slide and the other One end is in contact with the first moving arm, the other end of the first moving arm is connected to the substrate described above, The first axle and the first moving arm are in contact with each other through a first bushing and a first multiple bearing. The first multiple bearing is covered at one end of the first bushing and buried in the first shaft. The first bushing is sandwiched between the first axle and the first moving arm, and the first bushing and the first moving arm, the first multiple bearing and the first bushing are respectively drilled by two screws. Fixed in one bushing, the first moving arm is relatively variable shaking relative to the first axis or to generate a rotational movement of the image quality automatic detection device, characterized in that the variable position according to the variable position of the liquid crystal display module . The method of claim 1, wherein the second and third plural shafts comprise second and third shafts, second and third plural bearings, and second and third bushings, respectively. The second and third bushings are brought into contact with each other at different positions of the second moving arm, so that the second and third shafts interlock with the second moving arm, and the second moving arms are also connected to the substrate. The substrate and the second and third shafts have the same interlocking relationship, The second and third plural bearings are embedded in the second and third shafts, and the second and third bearings are covered by the second and third bushings, and are respectively fixed by one screw and the other end of the second and third bushings is Connected to the second moving arm with another screw, One guide plate is installed between the second and third plural bearings and an adjacent guide rail, and the guide plate is provided with a shape that reveals a guide rail and a sliding arrangement state so that the guide plate slides on the slide rail, and one end of the guide plate is provided. The first slide is extended in a direction parallel to the third shaft, and a first sliding piece is provided between the first slide and the third shaft, the third shaft is in the sliding relationship with the first slide in the first sliding piece The image quality automatic detection device which is variably adjusted according to the variable position of the liquid crystal display module, characterized in that the third shaft slides in the Z-axis direction in the three-dimensional dimension within the first slide. 4. The guide plate according to claim 3, wherein the guide plate is provided with one sliding groove separately on one side of the substrate, and the sliding groove is slidingly connected to the other sliding plate, and one end of the sliding plate is parallel to the second axis. One second slide is extended in the direction of the direction, and the second slide is in sliding contact with the second slide between the slide and the second shaft, so that the second shaft is in the second slide in the Z-axis direction of the three-dimensional space. Slide to, The second driver is connected to the upper surface of the sliding plate, which includes one second servomotor, a shaft jointer, a second ball screw and one guide piece, and the guide piece is connected to the sliding plate. The other end of the guide piece is screwed to the second ball screw, and the guide ball is moved together to generate a position movement through the rotation of the second ball screw. The second servo motor is connected to the shaft center of the second servo motor, and when the second servo motor is operated, the shaft core moves together with the second ball screw to rotate, and further, pulls the sliding plate to which the guide piece is interlocked to generate a linear position shift. The third driver is mounted on the upper surface of the first slide, the driver has a third servo motor, a shaft joint, a second ball screw and one guide piece, the guide piece is connected to the first slide piece, The other end of the induction piece is screwed to the third ball screw, that is, the rotation of the third ball screw moves the induction piece together to generate a position shift. The third ball screw is connected to the shaft center of the third servo motor through a single shaft jointer, and when the third servo motor is operated, the third ball screw moves together with the shaft to rotate the first ball screw. The image quality automatic detection device which is variably adjusted according to the variable position of the liquid crystal display module, characterized by generating a linear position shift under the traction of the sliding piece. According to claim 1, wherein the fourth driver is added to one side of the walkway induction rail adjacent to the second and third plural shafts, the fourth driver is the fourth servo motor, shaft joint, the fourth ball screw and one The guide piece is connected to the guide plate, and the other end of the guide piece is screwed to the fourth ball screw, and the guide piece is moved together to move the position by rotating the fourth ball screw. The fourth ball screw is connected to the axis of the fourth servomotor through a single shaft joint, and when the motor is operated, the fourth ball screw moves together with the shaft to rotate and further to pull the induction piece linkage. And an image quality automatic detection device which is variably adjusted according to the variable position of the liquid crystal display module, characterized in that the position shift is generated on the guide plate.