CN113608374A - Burning test fixing device for liquid crystal module - Google Patents
Burning test fixing device for liquid crystal module Download PDFInfo
- Publication number
- CN113608374A CN113608374A CN202110789368.0A CN202110789368A CN113608374A CN 113608374 A CN113608374 A CN 113608374A CN 202110789368 A CN202110789368 A CN 202110789368A CN 113608374 A CN113608374 A CN 113608374A
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- probe
- placing plate
- liquid crystal
- length direction
- crystal module
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 46
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 239000000523 sample Substances 0.000 claims abstract description 114
- 238000009434 installation Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
Abstract
The invention discloses a burning test fixing device for a liquid crystal module, which comprises: the device comprises a base, an angle adjusting mechanism, a placing plate and a probe bracket; the placing plate is provided with a first surface and a second surface which are opposite, and the first surface is provided with an adjustable positioning mechanism; the angle adjusting mechanism comprises a second supporting rod, a first supporting rod, a rotating ball head and a locking assembly; one end of the second support rod is fixedly connected with the middle part of the second surface, and the other end of the second support rod is fixedly connected with the rotating ball head; the first supporting rod is arranged on the base, a ball groove is formed in the top of the first supporting rod, the rotating ball head is arranged in the ball groove, and the rotating ball head is in rotating fit with the ball groove; the locking assembly is arranged on the first support rod and used for locking the rotating ball head and the first support rod; one end of the probe bracket is rotatably connected with the placing plate and can be turned to be close to or far away from the first surface; one end of the probe bracket is provided with a probe fixing component. The invention is suitable for the burning and multi-angle detection of liquid crystal modules with different specifications and is more convenient to use.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a burning test fixing device for a liquid crystal module.
Background
In the production process of the liquid crystal display screen, the liquid crystal display screen needs to be burned and tested. In the existing burning and testing process, a jig is needed to be used for placing the liquid crystal display, but the existing jig is only suitable for the liquid crystal display with the same specification, and in the burning process, an operator manually places a burning probe on the liquid crystal display at will, so that the burning effect is poor, more unqualified products are caused, and unnecessary loss of manpower and material resources is caused; and the angle of the jig is fixed, so that the liquid crystal module can not be detected from different angles, and the use is inconvenient.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a burning test fixing device for a liquid crystal module.
The invention provides a burning test fixing device for a liquid crystal module, which comprises: the device comprises a base, an angle adjusting mechanism, an adjustable positioning mechanism, a placing plate and a probe bracket;
the placing plate is provided with a first face and a second face which are opposite;
the adjustable positioning mechanism is arranged on the first surface and used for positioning the liquid crystal module;
the angle adjusting mechanism comprises a second supporting rod, a first supporting rod, a rotating ball head and a locking assembly;
one end of the second support rod is fixedly connected with the middle part of the second surface, and the other end of the second support rod is fixedly connected with the rotating ball head;
the first supporting rod is vertically arranged on the base, a ball groove matched with the rotating ball head is formed in the top of the first supporting rod, the rotating ball head is arranged in the ball groove, and the rotating ball head is in rotating fit with the ball groove;
the locking assembly is arranged on the first support rod and used for locking the rotating ball head and the first support rod;
one end of the probe bracket is rotatably connected with the placing plate, and the probe bracket can be turned to the first surface to be close to or far away from the placing plate;
one end of the probe bracket, which is far away from the placing plate, is provided with a probe fixing component, and the probe fixing component is used for fixing a probe;
when the probe bracket turns towards the first surface and is close to the preset position, the probe fixed on the probe fixing component is contacted with the liquid crystal module arranged on the placing plate.
Preferably, the device further comprises a connecting plate which is rotatably connected with the placing plate and can be turned to be close to or far away from the first surface relative to the placing plate;
the length direction of the probe bracket is vertical to the length direction of the connecting plate, the probe bracket is fixedly connected with the connecting plate, the connection part of the probe bracket and the connecting plate can be adjusted along the length direction of the connecting plate, and the probe fixing assembly is arranged at one end of the probe bracket, which is far away from the connecting plate;
when the connecting plate is turned to the first surface and is close to the preset position, the probe bracket is parallel to the placing plate.
Preferably, the connection point of the probe fixing component and the probe is adjustable along the length direction of the probe bracket.
Preferably, the probe fixing assembly comprises at least one second bolt, the probe support is provided with a holding tank used for holding the probe, the holding tank extends along the length direction of the probe support, one side or two side tank walls adjacent to the notch are provided with a plurality of second internal thread through holes matched with the second bolt along the length direction, the second bolt can pass through the second internal thread through holes to contact with the probe, and the second bolt is in threaded connection with the second internal thread through holes.
Preferably, the one end that the probe support kept away from the connecting plate is seted up and is suitable for the installation breach of probe business turn over holding tank.
Preferably, a wire passing notch suitable for a lead to pass through is formed in the probe support corresponding to the bottom of the accommodating groove, and the wire passing notch extends along the extending direction of the accommodating groove.
Preferably, the base is provided with a placing notch suitable for placing the test box.
Preferably, the locking assembly comprises at least one first bolt, the support column is provided with at least one first internal thread through hole communicated with the ball groove, the front end of the at least one first bolt penetrates through the at least one first internal thread through hole in a one-to-one correspondence mode and abuts against the rotating ball head, and the at least one first bolt is in threaded connection with the at least one first internal thread through hole.
Preferably, the adjustable positioning mechanism comprises a first positioning block, at least one pair of second positioning blocks and at least one third positioning block;
the first positioning block is arranged at one end of the first surface in the width/length direction;
at least one third positioning block is arranged at one end of the first surface, which is opposite to the first positioning block, different third positioning blocks are arranged at intervals along the length/width direction of the placing plate, and each third positioning block can move along the width/length direction of the placing plate relative to the placing plate;
two second positioning blocks of the same pair of second positioning blocks are respectively arranged at two ends of the first surface in the length/width direction, and the second positioning blocks can move relative to the placing plate along the length/width direction of the placing plate;
the second positioning blocks of different pairs are distributed at intervals along the width/length direction of the placing plate.
Preferably, the device further comprises at least one sliding block, the sliding block is arranged at one end, opposite to the first positioning block, of the first surface, the sliding block can move along the length/width direction of the placing plate relative to the placing plate, and the length direction of the sliding block is parallel to the width direction of the placing plate;
the at least one third positioning block is arranged on the at least one sliding block in a one-to-one correspondence mode, and the third positioning block can move along the length direction of the corresponding sliding block.
According to the burning test fixing device for the liquid crystal module, the burning test fixing device can be suitable for burning and detecting the liquid crystal modules with different specifications, a jig does not need to be replaced, poor burning caused by random probe placement of an operator is avoided, the rotating direction and the rotating angle of the placement plate can be adjusted according to requirements, the liquid crystal module can be conveniently detected from different angles, the fragments and dirt caused by rotation of a handheld liquid crystal film set are avoided, and the use is more convenient.
Drawings
Fig. 1 is a schematic structural diagram of a burning test fixture for a liquid crystal module according to the present invention.
Fig. 2 is another angle view of fig. 1.
Fig. 3 is a schematic structural view of the burning test fixture of the present invention with a probe mounted thereon.
Fig. 4 is a schematic structural diagram of the burning test fixture of the present invention when the probe and the liquid crystal module are loaded.
Fig. 5 is another angle view of fig. 4.
Detailed Description
Referring to fig. 1 to 5, a recording test fixture for a liquid crystal module according to the present invention includes: the device comprises a base 1, an angle adjusting mechanism, a placing plate 5 and a probe bracket 7;
the placing plate 5 is provided with a first surface and a second surface which are opposite, and the first surface is provided with an adjustable positioning mechanism for positioning the liquid crystal module;
the angle adjusting mechanism comprises a second supporting rod 3, a first supporting rod 2, a rotating ball head 4 and a locking assembly;
one end of the second support rod 3 is fixedly connected with the middle part of the second surface, and the other end is fixedly connected with the rotating ball head 4;
the first supporting rod 2 is vertically arranged on the base 1, a ball groove matched with the rotating ball head 4 is formed in the top of the first supporting rod 2, the rotating ball head 4 is installed in the ball groove, and the rotating ball head 4 is in rotating fit with the ball groove;
the locking assembly is arranged on the first support rod 2 and used for locking the rotating ball head 4 and the first support rod 2;
one end of the probe bracket 7 is rotatably connected with the placing plate 5, and the probe bracket 7 can be turned to the first surface to be close to or far away from the placing plate 5;
the other end of the probe bracket 7 is provided with a probe fixing component which is used for fixing a probe 11;
when the probe bracket 7 turns to the first surface to be close to and overturns to a preset position, the probe 11 fixed on the probe fixing component is contacted with the liquid crystal module arranged on the placing plate 5.
In the burning process, the placing plate 5 is adjusted to be in a proper inclination direction and an appropriate inclination angle and locked by adjusting the locking assembly, then the probe support 7 is turned to the first surface to be away, the liquid crystal module is placed on the placing plate 5, the liquid crystal modules with different specifications arranged on the placing plate 5 are fixed through the adjustable positioning mechanism, the probe 11 is fixed on the probe fixing assembly, then the probe support 7 is turned to the first surface to be close to the probe 11 to be in contact with the liquid crystal module, and the probe 11 is connected with the burning device to start burning; in the same test process, earlier through adjusting locking Assembly in order to place board 5 and adjust to suitable incline direction and inclination and locking, then keep away from probe bracket 7 to the first upset, place the LCD module on placing board 5, and place the LCD module of the different specifications on placing board 5 through adjustable positioning mechanism is fixed, fix probe 11 on probe fixed assembly, then be close to probe 11 contact LCD module to the first upset with probe bracket 7, can begin the test, and place the incline direction and the inclination of the LCD module on placing board 5 through locking Assembly's locking and unblock adjustment, be convenient for detect the LCD module from different angles, and is more convenient to use, and the work efficiency is improved. The probe 11 plays a role in burning and also plays a role in fool-proofing, so that the stability of the liquid crystal module in the burning and testing processes is maintained.
In conclusion, the invention is suitable for the burning and testing process of the liquid crystal module, does not need to switch the jig, avoids bad burning caused by randomly placing the probe 11 by an operator and fragments and dirt caused by holding the liquid crystal module by hand, and has convenient use and high efficiency.
In order to be suitable for liquid crystal modules with different thicknesses, in a further embodiment, the liquid crystal display device further comprises a connecting plate 6, wherein the connecting plate 6 is rotatably connected with the placing plate 5 and can be turned to be close to or far away from the first surface relative to the placing plate 5;
the length direction of the probe bracket 7 is vertical to the length direction of the connecting plate 6, the probe bracket 7 is fixedly connected with the connecting plate 6, the connection position of the probe bracket 7 and the connecting plate 6 can be adjusted along the length direction of the connecting plate 6, and the probe fixing assembly is arranged at one end of the probe bracket 7, which is far away from the connecting plate 6;
when the connecting plate 6 is turned to the first surface to be close to the preset position, the probe bracket 7 is parallel to the placing plate 5.
In the burning process, when the probe 11 is located in the middle area of the liquid crystal module, the burning effect is better, and therefore, in order to improve the burning effect and the test fixing effect, in a further embodiment, the connection part of the probe fixing component and the probe 11 can be adjusted along the length direction of the probe bracket 7.
In one specific embodiment, the probe fixing assembly comprises at least one second bolt, the probe support 7 is provided with a receiving groove for receiving the probe 11, the receiving groove extends along the length direction of the probe support 7, one or two groove walls of the receiving groove adjacent to the notch are provided with a plurality of second internal thread through holes matched with the second bolt along the length direction, the second bolt can pass through the second internal thread through holes to contact with the probe 11, and the second bolt is in threaded connection with the second internal thread through holes.
So set up, through the position adjustable probe 11 of adjusting the second bolt fix in the position that holds the groove to probe 11 is located liquid crystal module middle zone when guaranteeing to burn, can effectively improve and burn the effect and burn efficiency, can guarantee the same of test position moreover, improves the uniformity of test.
In a preferred embodiment, the number of the second bolts is plural. The second bolts may abut against the probe 11 from the through holes on the groove wall of one side of the accommodating groove adjacent to the notch, or abut against the probe 11 from the through holes on the groove walls of two sides of the accommodating groove adjacent to the notch, so that the probe 11 is fixed in the accommodating groove.
In other specific embodiments, the probe securement assembly includes a collar.
In order to facilitate the probe 11 to enter the receiving groove, in a further specific embodiment, an end of the probe bracket 7 away from the connecting plate 6 is provided with a mounting notch suitable for the probe 11 to enter and exit the receiving groove.
In further concrete embodiment, set up the line breach of crossing that is suitable for the wire to pass with holding tank bottom correspondence department on probe support 7, cross the extending direction of line breach along the holding tank and extend to the wire removes along probe 11, burn better and test, cross the line breach simultaneously and also be favorable to using hand or instrument to remove probe 11 to the position that needs in the holding tank, greatly improved the convenience.
It should be noted that the width of the wire-passing notch should be smaller than the width of the probe 11, i.e. the probe 11 cannot be pulled out of the receiving groove.
Of course, in order to facilitate the entry of the wires into the receiving grooves with the probe 11, in a further embodiment the wire passing indentation communicates with the mounting indentation.
In this embodiment, the base 1 is provided with a placement notch suitable for placing the test cartridge, so as to place the test cartridge conveniently. The shape of the placement gap may be a circle, a square, a triangle, etc., and this embodiment is not limited.
In one embodiment, the locking assembly includes at least one first bolt, the support pillar is provided with at least one first internal threaded through hole communicated with the ball groove, the front end of the at least one first bolt penetrates through the at least one first internal threaded through hole in a one-to-one correspondence manner to abut against the rotating ball head 4, and the at least one first bolt is in threaded connection with the at least one first internal threaded through hole.
In the test process, when the inclination direction and the inclination angle of the placing plate 5 need to be adjusted, the first bolt is loosened to enable the rotating ball 4 to rotate; when the angle of the placing plate 5 needs to be fixed, the first bolt is screwed so that the front end of the first bolt abuts against the rotating ball head 4 and is fixed.
Preferably, the number of the first bolts is three.
In another embodiment, the locking assembly comprises an arc-shaped magnet, the rotating ball 4 is made of a metal material capable of being attracted by magnetic force, and the arc-shaped magnet is arranged on the inner wall of the ball groove. The rotation angle of the rotating ball head 4 is adjusted through the magnetic adsorption of the arc-shaped magnet.
In other implementations, the locking assembly may have other configurations, such as a locking ring, etc.
In this embodiment, the adjustable positioning mechanism includes a first positioning block, at least one pair of second positioning blocks 8, and at least one third positioning block 10;
the first positioning block is arranged at one end of the first surface in the width/length direction;
at least one third positioning block 10 is disposed at an end of the first surface opposite to the first positioning block, and the third positioning block 10 is movable in the width/length direction of the placing plate 5 relative to the placing plate 5;
two second positioning blocks 8 of the same pair of second positioning blocks 8 are respectively disposed at both ends of the first surface in the length/width direction, and the second positioning blocks 8 are movable in the length/width direction of the placement plate 5 with respect to the placement plate 5;
the second positioning blocks 8 of different pairs are distributed at intervals along the width/length direction of the placing plate 5;
so set up, can carry out accurate location fixed to the liquid crystal membrane group of different specifications through the position of adjusting second locating piece 8 and third locating piece 10, especially correspond with the position of probe 11, guarantee to burn the stability of LCD module when writing with the test, improve and burn effect and test effect.
In a further embodiment, the device further comprises at least one sliding block 9, wherein the sliding block 9 is arranged at one end of the first surface opposite to the first positioning block, the sliding block 9 can move along the length/width direction of the placing plate 5 relative to the placing plate 5, and the length direction of the sliding block 9 is parallel to the width direction of the placing plate 5;
the at least one third positioning block 10 is correspondingly disposed on the at least one sliding block 9, and the third positioning block 10 is movable along the length direction of the corresponding sliding block 9.
The second positioning block 8 and the sliding block 9 may be fixed to the placing plate 5 by means of adhesion, screws, fasteners, insertion, and the like, which is not limited in this embodiment.
Of course, the third positioning block 10 may also be fixed to the slider 9 by means of adhesion, screws, fasteners, or insertion.
In a preferred embodiment, the number of the third positioning blocks 10 is two, and the number of the sliders 9 is two.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a burn record test fixing device for LCD module which characterized in that includes: the device comprises a base (1), an angle adjusting mechanism, an adjustable positioning mechanism, a placing plate (5) and a probe bracket (7);
the placing plate (5) is provided with a first surface and a second surface which are opposite;
the adjustable positioning mechanism is arranged on the first surface and used for positioning the liquid crystal module;
the angle adjusting mechanism comprises a first supporting rod (2), a second supporting rod (3), a rotating ball head (4) and a locking assembly;
one end of the second supporting rod (3) is fixedly connected with the middle part of the second surface, and the other end of the second supporting rod is fixedly connected with the rotating ball head (4);
the first supporting rod (2) is vertically arranged on the base (1), a ball groove matched with the rotating ball head (4) is formed in the top of the first supporting rod (2), the rotating ball head (4) is arranged in the ball groove, and the rotating ball head (4) is in rotating fit with the ball groove;
the locking assembly is arranged on the first supporting rod (2) and used for locking the rotating ball head (4) and the first supporting rod (2);
one end of the probe bracket (7) is rotatably connected with the placing plate (5), and the probe bracket (7) can be turned towards the first surface to be close to or far away from the first surface relative to the placing plate (5);
one end of the probe bracket (7) far away from the placing plate (5) is provided with a probe fixing component which is used for fixing a probe;
when the probe bracket (7) turns towards the first surface and is close to the preset position, the probe fixed on the probe fixing component is contacted with the liquid crystal module arranged on the placing plate (5).
2. The burning test fixing device for the liquid crystal module as claimed in claim 1, further comprising a connecting plate (6), wherein the connecting plate (6) is rotatably connected with the placing plate (5) and can be turned towards the first surface to approach or depart from the placing plate (5);
the length direction of the probe support (7) is vertical to the length direction of the connecting plate (6), the probe support (7) is fixedly connected with the connecting plate (6), the connecting position of the probe support (7) and the connecting plate (6) can be adjusted along the length direction of the connecting plate (6), and the probe fixing assembly is arranged at one end, far away from the connecting plate (6), of the probe support (7);
when the connecting plate (6) is turned to the first surface and is close to the preset position, the probe bracket (7) is parallel to the placing plate (5).
3. The burning test fixing device for the liquid crystal module as claimed in claim 2, wherein the connection position of the probe fixing component and the probe can be adjusted along the length direction of the probe bracket (7).
4. The fixture for burn recording testing of liquid crystal modules as claimed in claim 3, wherein the probe fixing assembly comprises at least one second bolt, the probe holder (7) is provided with a receiving groove for receiving the probe, the receiving groove extends along the length direction of the probe holder (7), one or both side walls of the receiving groove adjacent to the notch are provided with a plurality of second internal threaded through holes matched with the second bolt along the length direction, and the at least one second bolt can be abutted against the probe through the second internal threaded through holes.
5. The fixture for burning test of liquid crystal module as claimed in claim 4, wherein the probe bracket (7) has an end away from the connecting plate (6) with an installation notch suitable for the probe to enter and exit the receiving groove.
6. The burning test fixing device for the liquid crystal module as claimed in claim 5, wherein the probe bracket (7) is provided with a wire passing notch corresponding to the bottom of the accommodating groove, the wire passing notch is suitable for a lead to pass through, and the wire passing notch extends along the extending direction of the accommodating groove.
7. The fixture for burning test of LCD module as claimed in claim 1, wherein the base (1) has a notch for placing the test box.
8. The fixture for burn record test of liquid crystal module as claimed in any one of claims 1-7, wherein the locking assembly comprises at least one first bolt, the support post is provided with at least one first internally threaded through hole communicating with the ball groove, the front end of the at least one first bolt is in one-to-one correspondence to pass through the at least one first internally threaded through hole to abut against the rotary ball head (4), and the at least one first bolt is in threaded connection with the at least one first internally threaded through hole.
9. The fixture for burn record test of liquid crystal module as claimed in any one of claims 1-7, wherein the adjustable positioning mechanism comprises a first positioning block, at least a pair of second positioning blocks (8) and at least a third positioning block (10);
the first positioning block is arranged at one end of the first surface in the width/length direction;
at least one third positioning block (10) is arranged at one end of the first surface opposite to the first positioning block, different third positioning blocks (10) are arranged at intervals along the length/width direction of the placing plate (5), and each third positioning block (10) can move along the width/length direction of the placing plate (5) relative to the placing plate (5);
two second positioning blocks (8) in the same pair of second positioning blocks (8) are respectively arranged at two ends of the first surface in the length/width direction, and the second positioning blocks (8) can move relative to the placing plate (5) along the length/width direction of the placing plate (5);
the second positioning blocks (8) of different pairs are distributed at intervals along the width/length direction of the placing plate (5).
10. The burning test fixing device for the liquid crystal module as claimed in claim 9, further comprising at least one slider (9), wherein the slider (9) is disposed at an end of the first surface opposite to the first positioning block, and the slider (9) is movable along a length/width direction of the placing plate (5) relative to the placing plate (5), and the length direction of the slider (9) is parallel to the width direction of the placing plate (5);
the at least one third positioning block (10) is arranged on the at least one sliding block (9) in a one-to-one correspondence mode, and the third positioning block (10) can move along the length direction of the corresponding sliding block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789368.0A CN113608374B (en) | 2021-07-13 | 2021-07-13 | Burning test fixing device for liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789368.0A CN113608374B (en) | 2021-07-13 | 2021-07-13 | Burning test fixing device for liquid crystal module |
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| CN113608374A true CN113608374A (en) | 2021-11-05 |
| CN113608374B CN113608374B (en) | 2024-04-09 |
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| CN212569339U (en) * | 2020-05-19 | 2021-02-19 | 江西合力泰科技有限公司 | OTP burning jig for liquid crystal display screen |
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| CN213462911U (en) * | 2020-10-30 | 2021-06-18 | 克拉玛依职业技术学院 | Bundling machine draw gear |
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