CN221313165U - Optical machine adjusting device - Google Patents

Abstract

The utility model belongs to the technical field of optical machine assembly and discloses optical machine adjustment equipment. The optical machine adjusting device is used for assembling the display screen on the optical machine and comprises a positioning jig and an adjusting mechanism, wherein the positioning jig is used for bearing and positioning the optical machine. The adjusting mechanism is arranged on one side of the positioning jig and comprises a sucker and an adjusting component, the sucker is used for adsorbing the display screen, and the adjusting component can drive the sucker to move along the X direction, the Y direction and the Z direction and rotate in the XY plane so as to adjust the position of the display screen relative to the optical machine and attach the display screen to the preset position of the optical machine. According to the optical machine adjusting device, the accurate position adjustment is carried out on the display screen, so that the relative position precision between the display screen and the optical machine is improved, and the assembly precision is improved.

Description

Optical machine adjusting device

Technical Field

The utility model relates to the technical field of optical machine assembly, in particular to optical machine adjustment equipment.

Background

In the current main consumer electronic products such as AR, VR, mobile phone micro-projection, vehicle UHD and the like, an optical module is the most central display component, generally, a display screen is used as an imaging element of the optical module, a virtual image is presented in human eyes through an optical lens of the optical module, if the relative position between the display screen and the optical lens of the optical module cannot meet the tolerance requirement, the problems that the virtual image is unclear, the distance between an edge virtual image and a center virtual image is large, the virtual image is displayed asymmetrically and the like are caused, and the imaging quality and the user experience are seriously restricted, so that the precise alignment between the display screen and the optical lens of the display screen is ensured, the yield of products is improved, and the technical problem to be solved in the industry is urgent.

The unit where the optical lens is located is generally called a light machine, and the display screen is attached to the light machine. In the prior art, when the display screen is assembled with the optical machine, the relative position between the display screen and the optical machine is difficult to accurately adjust, so that the assembly precision is not high, and the product quality of the optical machine is influenced.

Therefore, there is a need for an optomechanical adjustment device to solve the above problems.

Disclosure of utility model

The utility model aims to provide an optical machine adjusting device, which improves the relative position precision between a display screen and an optical machine by accurately adjusting the position of the display screen, thereby improving the assembly precision.

To achieve the purpose, the utility model adopts the following technical scheme:

the equipment is transferred to ray apparatus for assemble the display screen in ray apparatus, include:

the positioning jig is used for carrying and positioning the optical machine;

The adjusting mechanism is arranged on one side of the positioning jig and comprises a sucker and an adjusting component, the sucker is used for adsorbing the display screen, and the adjusting component can drive the sucker to move along the X direction, the Y direction and the Z direction and rotate in the XY plane so as to adjust the position of the display screen relative to the optical machine and attach the display screen to the preset position of the optical machine.

Alternatively, the adjusting assembly includes:

The driving end of the rotary driving piece is connected with the sucker to drive the sucker to rotate in an XY plane;

the driving end of the X-direction driving piece is connected with the fixed end of the rotary driving piece so as to drive the rotary driving piece to move along the X direction;

The driving end of the Y-direction driving piece is connected with the fixed end of the X-direction driving piece so as to drive the X-direction driving piece to move along the Y direction;

And the driving end of the Z-direction driving piece is connected with the fixed end of the Y-direction driving piece so as to drive the Y-direction driving piece to move along the Z direction.

Alternatively, the rotary driving piece adopts a rotary motor, and/or the X-direction driving piece, the Y-direction driving piece and the Z-direction driving piece adopt motor lead screw modules.

As an alternative, the positioning jig includes:

The positioning block is provided with an installation groove;

The cover plate is detachably arranged on the upper side of the positioning block, the optical machine stretches into the mounting groove, an avoidance hole is formed in the cover plate, and the mounting position of the display screen on the optical machine is exposed from the avoidance hole.

As an alternative, the positioning jig further includes:

The compressing piece is arranged on one side of the positioning block and can prop against the cover plate, so that the cover plate is compressed on the positioning block.

As an alternative, one of the cover plate and the positioning block is provided with a positioning pin, and the other one is provided with a positioning hole, and the positioning pin can be inserted into the positioning hole.

As an alternative, the optical machine adjusting device further includes:

The detection camera is used for detecting the image effect of the optical machine, and the detection camera is in communication connection with the adjusting component.

As an alternative, the optical machine adjusting device further includes:

The dispensing mechanism is used for dispensing the light machine and the display screen attached to the light machine, and the dispensing mechanism is in communication connection with the adjusting component.

As an alternative, the optical machine adjusting device further includes:

the feeding mechanism comprises a display screen placing part, wherein the display screen placing part is arranged on one side of the positioning jig, a limiting groove is formed in the display screen placing part, the display screen is placed in the limiting groove, and the sucker is used for sucking the display screen from the limiting groove.

As an alternative, the feeding mechanism further includes:

The power supply placing piece is arranged on one side, far away from the positioning jig, of the display screen placing piece, and a power supply is arranged on the power supply placing piece and used for supplying power to the display screen.

The beneficial effects are that:

According to the optical machine adjusting device, the positioning jig is arranged to position the optical machine and fix the position of the optical machine. After the sucking disc adsorbs the display screen, through adjusting component drive sucking disc in X direction, Y direction, Z direction removal and at XY plane internal rotation, drive the relative ray apparatus of display screen and carry out the positional adjustment of a plurality of directions to guarantee that the display screen can adjust to the best position of imaging, afterwards, continue to drive the display screen and remove along the Z direction and be close to the ray apparatus gradually, and finally laminate on the ray apparatus, in order to make things convenient for follow-up to carry out the adhesive bonding to display screen and ray apparatus.

Drawings

Fig. 1 is a schematic structural diagram of an optical machine adjusting device according to an embodiment of the present utility model;

FIG. 2 is a schematic structural diagram of an adjusting mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a part of a calibration mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a part of a calibration mechanism according to an embodiment of the present utility model;

Fig. 5 is a schematic structural diagram of a dispensing mechanism according to an embodiment of the present utility model.

In the figure:

100. a light machine; 200. a display screen;

1. Positioning jig; 11. a positioning block; 111. a mounting groove; 112. a positioning pin; 12. a cover plate; 121. avoidance holes; 122. a threaded hole; 13. a pressing member; 131. a compacting cylinder; 132. briquetting;

2. A calibrating mechanism; 21. a suction cup; 22. an adjustment assembly; 221. a rotary driving member; 222. an X-direction driving member; 223. a Y-direction driving member; 224. a Z-direction driving member; 23. a support frame;

3. Detecting a camera;

4. A dispensing mechanism; 41. dispensing heads; 42. an X-direction dispensing driving piece; 43. y-direction dispensing driving piece; 44. an inclined dispensing driving member; 45. a connecting plate; 451. a connection hole; 452. a waist-shaped hole;

5. A feeding mechanism; 51. a display screen placement member; 511. a limit groove; 52. a power supply placement member;

6. A work table; 7. and a protective cover.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, the present embodiment provides an optical bench adjustment device for precisely assembling a display screen 200 on an optical bench 100. Specifically, the optical bench assembling and adjusting device includes a positioning jig 1 and an adjusting mechanism 2, where the positioning jig 1 is used for carrying and positioning the optical bench 100. The adjusting mechanism 2 is arranged on one side of the positioning jig 1, the adjusting mechanism 2 comprises a sucker 21 and an adjusting component 22, the sucker 21 is used for adsorbing the display screen 200, and the adjusting component 22 can drive the sucker 21 to move along the X direction, the Y direction and the Z direction and rotate in the XY plane so as to adjust the position of the display screen 200 relative to the optical machine 100 and attach the display screen 200 to a preset position of the optical machine 100. Wherein the X direction is the left-right direction, the Y direction is the front-back direction, and the Z direction is the up-down direction.

The positioning jig 1 is provided to position the optical machine 100, and fix the position of the optical machine 100. After the sucker 21 adsorbs the display screen 200, the sucker 21 is driven to move in the X direction, the Y direction and the Z direction and rotate in the XY plane by the adjusting component 22, so that the display screen 200 is driven to adjust positions in multiple directions relative to the optical machine 100, the display screen 200 is guaranteed to be adjusted to the position with the optimal imaging effect, and then the display screen 200 is continuously driven to move along the Z direction to gradually approach the optical machine 100 and finally be attached to the optical machine 100, so that the follow-up adhesive pointing of the display screen 200 and the optical machine 100 is facilitated.

Further, as shown in fig. 1, the optical machine assembling and adjusting device further comprises a workbench 6 and a protective cover 7, wherein the positioning jig 1 and the adjusting mechanism 2 are arranged on the workbench 6, and the protective cover 7 is arranged on the upper side of the workbench 6 and covers the positioning jig 1 and the adjusting mechanism 2 to provide a safety protection effect. The front side surface of the protective cover 7 is provided with a hollow-out structure, so that the feeding and discharging of the optical machine 100 and the display screen 200, the maintenance of devices in the protective cover 7 and the like can be conveniently performed.

Because two display screens 200 are arranged on each optical machine 100, two groups of adjusting mechanisms 2 are arranged, and the two groups of adjusting mechanisms 2 are respectively arranged on the left side and the right side of the positioning jig 1, so that the two display screens 200 can be assembled at the same time, and the assembling and adjusting efficiency is improved. The two sets of adjusting mechanisms 2 have the same structure and are symmetrically arranged at two sides of the positioning jig 1, and only one set of adjusting mechanism 2 is described in the embodiment.

Specifically, the suction cup 21 may be a vacuum suction cup. As shown in fig. 2, the adjusting assembly 22 includes a rotation driving member 221, an X-direction driving member 222, a Y-direction driving member 223, and a Z-direction driving member 224, and the driving end of the rotation driving member 221 is connected to the suction cup 21 to drive the suction cup 21 to rotate in the XY plane, so as to drive the display screen 200 on the suction cup 21 to rotate in the horizontal plane. The driving end of the X-direction driving member 222 is connected to the fixed end of the rotation driving member 221, so as to drive the rotation driving member 221 to move left and right, thereby driving the display screen 200 on the suction cup 21 to move left and right. The driving end of the Y-direction driving member 223 is connected to the fixed end of the X-direction driving member 222, so as to drive the X-direction driving member 222 to move back and forth, thereby driving the display screen 200 on the suction cup 21 to move back and forth. The driving end of the Z-direction driving member 224 is connected to the fixed end of the Y-direction driving member 223, so as to drive the Y-direction driving member 223 to move up and down, thereby driving the display screen 200 on the suction cup 21 to move up and down.

Alternatively, the rotary driving member 221 employs a rotary motor, and the suction cup 21 is connected to an output shaft of the rotary motor. And/or the X-direction driving member 222, the Y-direction driving member 223, and the Z-direction driving member 224 employ motor lead screw modules. Preferably, a mode of matching a servo motor with a micro ball screw is adopted, the driving precision is relatively high, and the positioning precision in the XYZ direction can reach 0.01MM. The motor screw rod module is a linear driving mode commonly used in the prior art, and specific working principles and connection modes between the motor screw rod module and the motor screw rod module are not described in detail herein.

In other embodiments, the X-direction driving member 222, the Y-direction driving member 223, and the Z-direction driving member 224 may be linear cylinders, and may be capable of driving the suction cup 21 to move in the XYZ direction with high precision, and the specific structure is not limited herein.

Optionally, as shown in fig. 2, the adjusting mechanism 2 further includes a support 23, the support 23 is disposed on the workbench 6, and the fixed end of the Z-direction driving element 224 is disposed on the support 23.

Further, as shown in fig. 3 and 4, the positioning jig 1 includes a positioning block 11 and a cover plate 12, and the positioning block 11 is provided with a mounting groove 111. The optical machine 100 can be connected to the bottom side of the cover plate 12, the cover plate 12 is detachably arranged on the upper side of the positioning block 11, the optical machine 100 extends into the mounting groove 111, the cover plate 12 is provided with an avoidance hole 121, and the mounting position of the display screen 200 on the optical machine 100 is exposed from the avoidance hole 121. By arranging the positioning jig 1 in a structure form that the positioning block 11 and the cover plate 12 are separated, the optical machine 100 is convenient to install on the positioning jig 1. When the optical machine 100 is mounted on the positioning jig 1, the cover plate 12 is detached, the optical machine 100 is connected to the cover plate 12, and then the cover plate 12 is mounted on the positioning block 11 together with the optical machine 100, so that the mounting position of the display screen 200 on the optical machine 100 is exposed from the avoiding hole 121 for subsequent mounting of the display screen 200.

Specifically, at least one screw hole 122 is provided at each of the left and right ends of the cover plate 12, and the optical bench 100 is connected to the cover plate 12 by bolts passing through the screw holes 122.

As shown in fig. 3 and 4, in order to limit the installation of the cover plate 12 on the positioning block 11, one of the cover plate 12 and the positioning block 11 is provided with a positioning pin 112, and the other is provided with a positioning hole, and the positioning pin 112 can be inserted into the positioning hole, so that the cover plate 12 is positioned, and the cover plate 12 is prevented from moving randomly. In this embodiment, the positioning hole is disposed on the cover 12, and the positioning pin 112 is disposed on the positioning block 11.

Because the cover plate 12 is limited only by the positioning pins 112, the up-and-down movement easily occurs in the working process, and the position of the optical machine 100 is unstable. For this reason, as shown in fig. 3 and 4, the positioning fixture 1 further includes a pressing member 13, where the pressing member 13 is disposed on one side of the positioning block 11, and the pressing member 13 can press the cover 12, so that the cover 12 is pressed on the positioning block 11 to ensure that the position of the optical machine 100 is stable.

Specifically, as shown in fig. 3 and 4, the pressing member 13 includes a pressing cylinder 131 and a pressing block 132, the pressing block 132 is connected to an output end of the pressing cylinder 131, the pressing cylinder 131 can drive the pressing block 132 to move up and down, the pressing block 132 moves down to press the cover plate 12, or the pressing block 132 moves up to release the cover plate 12.

Further, as shown in fig. 3, in order to facilitate the sucking disc 21 to suck the display screen 200, the optical machine adjusting device further comprises a feeding mechanism 5, the feeding mechanism 5 comprises a display screen placing piece 51, the display screen placing piece 51 is arranged on the front side of the positioning jig 1, a limiting groove 511 is formed in the display screen placing piece 51, the display screen 200 is placed in the limiting groove 511, and the sucking disc 21 sucks the display screen 200 from the limiting groove 511. Specifically, two limiting grooves 511 are provided, and the two limiting grooves 511 are arranged left and right to provide the display screen 200 for the two adjustment mechanisms 2, respectively.

The display screen 200 needs to be electrified in the adjustment process, for this reason, as shown in fig. 3 and 4, the feeding mechanism 5 further includes a power supply placing member 52, the power supply placing member 52 is disposed on one side of the display screen placing member 51 away from the positioning jig 1, that is, the front side of the display screen placing member 51, and a power supply is disposed on the power supply placing member 52, and is used for supplying power to the display screen 200.

After the display screen 200 is placed on the display screen placing member 51, the FPC of the display screen 200 is connected to a power source to light the display screen 200. The display screen 200 is maintained in a lit state while the suction cup 21 sucks the display screen 200 and performs position adjustment of the display screen 200.

In order to detect whether the placement position of the display screen 200 is suitable, as shown in fig. 3, the optical bench adjustment device further includes a detection camera 3, where the detection camera 3 is used to detect the image effect of the optical bench 100, and the detection camera 3 is communicatively connected to the adjustment component 22.

The detection camera 3 is arranged opposite to the optical machine 100, when the display screen 200 is sucked by the adjusting mechanism 2 and comes to the upper side of the optical machine 100, an image on the display screen 200 is transmitted to the detection camera 3 through an optical lens in the optical machine 100, the detection camera 3 converts the image into an electric signal and sends the electric signal to the host, the host analyzes the image, and the adjusting mechanism 2 sends an instruction according to the image analysis result, and a new adjusting and feedback adjusting process is started until the image quality meets the requirement.

When the image detected by the detecting camera 3 meets the quality requirement, the position of the display screen 200 is adjusted to be optimal, and at this time, the Z-direction driving element 224 is started to drive the display screen 200 to move downwards to be attached to the optical machine 100, and the next dispensing operation is continued.

In order to finish dispensing, as shown in fig. 5, the optical machine assembling and adjusting device further includes a dispensing mechanism 4, the dispensing mechanism 4 is used for dispensing the optical machine 100 and the display screen 200 attached to the optical machine 100, and the dispensing mechanism 4 is in communication connection with the adjusting component 22. After the Z-direction driving element 224 drives the display screen 200 to move downwards to be attached to the optical machine 100, the dispensing mechanism 4 receives the attachment signal of the display screen 200, and starts the dispensing operation.

Specifically, the dispensing mechanism 4 includes a dispensing head 41 and a dispensing driving member, and the dispensing head 41 is connected to the driving end of the dispensing driving member to drive the dispensing head 41 to move the dispensing.

Optionally, the dispensing driving member includes an X-direction dispensing driving member 42, a Y-direction dispensing driving member 43, and an oblique dispensing driving member 44, where the fixed end of the X-direction dispensing driving member 42 is disposed on the workbench 6, and the driving end of the X-direction dispensing driving member 42 is connected to the fixed end of the Y-direction dispensing driving member 43, for driving the Y-direction dispensing driving member 43 to move left and right. The fixed end of the inclined dispensing driving piece 44 is obliquely arranged at the driving end of the Y-direction dispensing driving piece 43, and the inclined dispensing driving piece 44 is driven to move forwards and backwards through the Y-direction dispensing driving piece 43. The fixed end of the inclined dispensing driving member 44 is arranged in a manner of being inclined from front to back and upwards, and the driving end of the inclined dispensing driving member 44 is connected with the dispensing head 41 so as to drive the dispensing head 41 to move forwards and backwards and simultaneously move upwards and downwards. The front, back, left, right, up and down movement of the dispensing head 41 is realized through the matching of the X-direction dispensing driving piece 42, the Y-direction dispensing driving piece 43 and the inclined dispensing driving piece 44, and the dispensing track of the dispensing head 41 is flexibly adjusted.

Preferably, as shown in fig. 5, the oblique dispensing driving member 44 is connected to the fixed end of the Y-direction dispensing driving member 43 through two connecting plates 45, and a connecting hole 451 and a waist-shaped hole 452 are provided on the connecting plates 45, and the waist-shaped hole 452 extends up and down. The inclined dispensing driving member 44 is fixed to the connection plate 45 by two bolts passing through the connection hole 451 and the waist-shaped hole 452, respectively. The connection position of the bolt in the waist-shaped hole 452 can be adjusted to adjust the height of one end of the inclined dispensing driving member 44, thereby achieving the effect of adjusting the inclination angle of the inclined dispensing driving member 44.

Further, in order to cure the dispensing, the optical machine adjusting device further comprises a curing mechanism, the curing mechanism comprises a curing lamp mounting frame and a plurality of left and right arranged UV curing lamps, and after the dispensing is completed, the UV curing lamps are turned on to cure the dispensing, so that the display screen 200 and the optical machine 100 are assembled together.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The optical machine dress is transferred equipment for assemble display screen (200) in optical machine (100), its characterized in that includes:

The positioning jig (1) is used for carrying and positioning the optical machine (100);

The adjusting mechanism (2) is arranged on one side of the positioning jig (1), the adjusting mechanism (2) comprises a sucker (21) and an adjusting component (22), the sucker (21) is used for adsorbing the display screen (200), and the adjusting component (22) can drive the sucker (21) to move along the X direction, the Y direction and the Z direction and rotate in the XY plane so as to adjust the position of the display screen (200) relative to the optical machine (100), and attach the display screen (200) to the preset position of the optical machine (100).

2. The optomechanical adjustment device of claim 1, wherein the adjustment assembly (22) comprises:

A rotation driving member (221), wherein the driving end of the rotation driving member (221) is connected to the suction cup (21) to drive the suction cup (21) to rotate in an XY plane;

the X-direction driving piece (222), the driving end of the X-direction driving piece (222) is connected with the fixed end of the rotary driving piece (221) so as to drive the rotary driving piece (221) to move along the X direction;

The driving end of the Y-direction driving piece (223) is connected with the fixed end of the X-direction driving piece (222) so as to drive the X-direction driving piece (222) to move along the Y direction;

And the driving end of the Z-direction driving piece (224) is connected with the fixed end of the Y-direction driving piece (223) so as to drive the Y-direction driving piece (223) to move along the Z direction.

3. The optomechanical adjustment device of claim 2, wherein the rotary drive (221) employs a rotary motor and/or the X-direction drive (222), the Y-direction drive (223) and the Z-direction drive (224) employ a motor lead screw module.

4. The optomechanical adjustment device of claim 1, wherein the positioning jig (1) comprises:

The positioning block (11), wherein the positioning block (11) is provided with an installation groove (111);

Cover plate (12), ray apparatus (100) can connect in the downside of cover plate (12), cover plate (12) removable set up in locating piece (11) upside, and make ray apparatus (100) stretch into in mounting groove (111), be provided with on cover plate (12) and dodge hole (121), on ray apparatus (100) the mounted position of display screen (200) is followed dodge hole (121) and expose.

5. The optomechanical adjustment device of claim 4, wherein the positioning jig (1) further comprises:

The pressing piece (13) is arranged on one side of the positioning block (11), and the pressing piece (13) can press the cover plate (12) so that the cover plate (12) is pressed on the positioning block (11).

6. The optomechanical adjustment device according to claim 5, characterized in that one of the cover plate (12) and the positioning block (11) is provided with a positioning pin (112), the other one is provided with a positioning hole, and the positioning pin (112) can be inserted into the positioning hole.

7. The optomechanical tuning device of any one of claims 1-6, further comprising:

The detection camera (3), the detection camera (3) is used for detecting the image effect of ray apparatus (100), detection camera (3) with regulation subassembly (22) communication connection.

8. The optomechanical tuning device of any one of claims 1-6, further comprising:

the dispensing mechanism (4), dispensing mechanism (4) are used for to the ray apparatus (100) with attached in ray apparatus (100) display screen (200) carry out the point and glue, dispensing mechanism (4) with adjusting part (22) communication connection.

9. The optomechanical tuning device of any one of claims 1-6, further comprising:

The feeding mechanism (5) comprises a display screen placing piece (51), wherein the display screen placing piece (51) is arranged on one side of the positioning jig (1), a limiting groove (511) is formed in the display screen placing piece (51), the display screen (200) is placed in the limiting groove (511), and the sucker (21) absorbs the display screen (200) from the inside of the limiting groove (511).

10. The machine adjustment device according to claim 9, characterized in that the feeding mechanism (5) further comprises:

The power supply placing piece (52), the power supply placing piece (52) set up in one side of keeping away from of display screen placing piece (51) positioning jig (1), be provided with the power on the power supply placing piece (52), the power is used for right display screen (200) power supply.