CN111562063B - Liquid crystal display surface leakage detection device and method - Google Patents
Liquid crystal display surface leakage detection device and method Download PDFInfo
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- CN111562063B CN111562063B CN202010403354.6A CN202010403354A CN111562063B CN 111562063 B CN111562063 B CN 111562063B CN 202010403354 A CN202010403354 A CN 202010403354A CN 111562063 B CN111562063 B CN 111562063B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 71
- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000741 silica gel Substances 0.000 claims abstract description 29
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 29
- 230000005484 gravity Effects 0.000 claims description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000003028 elevating effect Effects 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a device and a method for detecting liquid leakage on the surface of a liquid crystal display screen, belonging to the technical field of liquid leakage detection. Through silica gel sucking disc absorption LCD screen upper surface to exert certain suction, if the LCD screen reveals the numerical value change of accessible pressure sensor and knows, to the small gap that the LCD screen surface exists, damaged or weak department, there is obviously not revealing, nevertheless has revealed a little or has the condition of very big risk of revealing, and the position that can reveal accurately according to the position of many body of rod or detecting element, prevents that liquid from directly revealing externally and causing the environmental pollution.
Description
Technical Field
The invention relates to the technical field of leakage detection, in particular to a device and a method for detecting leakage on the surface of a liquid crystal display.
Background
Liquid Crystal Displays (LCDs) are used in digital watches and one type of display for many portable computers. The LCD display uses two sheets of polarized material with a liquid crystal solution between them. When current is passed through the liquid, the crystals will rearrange so that light cannot pass through them. But liquid crystal display is fragile, production transportation, all easy because the striking produces the crackle in the use, lead to liquid crystal solution to leak, current liquid crystal solution leaks and detects through naked eye direct observation, but to the tiny gap that exists on liquid crystal screen surface, damage or weak department, there is not obviously revealing, but the condition that has leaked a little or has very big leakage risk can not carry out visual observation through the naked eye, need detect with the help of weeping detection device, current weeping detection device does not have and detects to also the tiny damage on liquid crystal screen surface specially, the comprehensiveness that adopts general weeping detection device to detect is low, the liquid crystal solution of deriving during the detection directly exposes in the air, and the everywhere flows, be difficult to handle, cause environmental pollution.
Disclosure of Invention
The invention aims to provide a liquid crystal screen surface leakage detection device and a liquid crystal screen surface leakage detection method, wherein a silica gel sucker is used for adsorbing the upper surface of a liquid crystal screen and applying a certain suction force, if the liquid crystal screen leakage can be known through the numerical change of a pressure sensor, the situation that no obvious leakage exists but micro leakage exists or a great leakage risk exists at a micro gap, a damaged part or a weak part existing on the surface of the liquid crystal screen is solved, the position of the leakage can be accurately determined according to the positions of a plurality of rod bodies or detection units, and the liquid is prevented from directly leaking outside to cause environmental pollution, so that the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a LCD screen surface weeping detection device, includes base, mesa, fixed establishment, elevating system, collateral branch frame and atmospheric pressure detection mechanism, the annular mesa of bolt fixedly connected with is passed through in the upper end four corners of base, sliding connection has fixed establishment in the middle part dead slot of mesa, fixed establishment's upper surface is equipped with the gravity inductor, and is connected with elevating system, the collateral branch frame is installed, two at the upper end edge of mesa the middle part sliding connection of collateral branch frame has atmospheric pressure detection mechanism, the gravity inductor is connected with elevating system and collateral branch frame respectively.
Furthermore, the fixing mechanism comprises a panel and an air pump, wherein the upper surface of the panel is provided with an air hole, the air hole is communicated with the cavity inside the panel, and the cavity inside the panel is connected with the air pump.
Further, elevating system includes cylinder assembly, X type support, spacing section of thick bamboo and guide pillar, and the welding of the four corners of X type support has the guide pillar, and with base fixed connection, and sliding connection has the guide pillar in the middle part of the spacing section of thick bamboo, and spacing section of thick bamboo welds in the four corners of panel.
Furthermore, the side support comprises a Z-direction slide rail, an electric telescopic rod and a Y-direction slide rail, the Z-direction slide rail is connected with the Y-direction slide rail in a sliding mode, and the Y-direction slide rail is connected with the table board through the electric telescopic rod.
Further, atmospheric pressure detection mechanism includes the body of rod, servo motor and first screw rod, through first screw rod interconnect between the many bodies of rod, first screw rod is connected with servo motor.
Further, the body of rod is the rectangle, and the lower terminal surface edge fixedly connected with silica gel sucking disc of the body of rod, and the lower terminal surface mid-mounting of the body of rod has pressure sensors and has seted up the micropore, and the micropore is connected with the gas-liquid mixture pump mutually.
Further, the body of rod includes detecting element, rotating electrical machines, second screw rod and links up the piece, links up and installs rotating electrical machines on the lateral wall of piece, rotating electrical machines and second screw rod interconnect, and the series connection has polylith detecting element on the second screw rod, and polylith detecting element slides along linking the piece, and detecting element's lower terminal surface edge fixedly connected with silica gel sucking disc, and detecting element's lower terminal surface mid-mounting has pressure sensors and has seted up the micropore, and the micropore is connected with the gas-liquid mixing pump.
According to another aspect of the present invention, there is provided a method for detecting liquid leakage on a surface of a liquid crystal display, comprising the steps of:
s101: placing the liquid crystal screen on the panel and fixing;
s102: the electric telescopic rod drives the Y-direction slide rail and the air pressure detection mechanism to move downwards, and the electric telescopic rod is lifted upwards after the silica gel sucker is tightly attached to the liquid crystal display screen;
s103: the gas-liquid mixing pump inputs gas into the silica gel sucker through the micropore, and the silica gel sucker loosens the surface of the liquid crystal screen;
s104: the air pressure detection mechanism moves upwards, the servo motor drives the first screw to rotate, the rod body translates along the Y-direction slide rail, and the detection position is replaced.
Further, S104 the rotating electrical machines drives the second screw rod to rotate afterwards, drives the detecting unit to slide along the connecting block, and changes the detecting position of the detecting unit.
Compared with the prior art, the invention has the beneficial effects that: according to the liquid crystal screen surface leakage detection device and method, the upper surface of the liquid crystal screen is adsorbed by the silica gel sucker, a certain suction force is applied, if the liquid crystal screen is leaked, the liquid crystal screen can be known through the numerical value change of the pressure sensor, the situation that micro leakage exists or a great leakage risk exists in the micro gap, damage or weak position existing on the surface of the liquid crystal screen is solved, the leaked trace liquid is located in a vacuum space and is not exposed in the air according to the position of a plurality of rod bodies or detection units, and the environmental pollution caused by the fact that the liquid is directly leaked outside is prevented.
Drawings
FIG. 1 is a general structure diagram of the liquid crystal display surface leakage detecting apparatus and method of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a table top structure diagram of the liquid crystal display surface leakage detection apparatus and method of the present invention;
FIG. 4 is a connection diagram of a lifting mechanism and a fixing mechanism of the device and the method for detecting surface leakage of a liquid crystal display panel according to the present invention;
FIG. 5 is a structural diagram of an air pressure detecting mechanism of the liquid crystal display device and method for detecting liquid leakage on the surface of the liquid crystal display panel according to the first embodiment of the present invention;
FIG. 6 is a bar structure diagram of an apparatus and method for detecting liquid leakage on a liquid crystal display according to a first embodiment of the present invention;
FIG. 7 is a structural diagram of an air pressure detecting mechanism of the liquid crystal display device and method for detecting liquid leakage on the surface of the liquid crystal display panel according to the second embodiment of the present invention;
FIG. 8 is a bar structure diagram of a device and method for detecting surface leakage of a liquid crystal display according to a second embodiment of the present invention;
FIG. 9 is a flowchart of a method for detecting liquid leakage on a surface of a liquid crystal display panel according to the present invention.
In the figure: 1. a base; 2. a table top; 3. a fixing mechanism; 31. a panel; 32. an air extractor; 33. air holes; 4. a lifting mechanism; 41. a cylinder assembly; 42. an X-shaped bracket; 43. a limiting cylinder; 44. a guide post; 5. a side bracket; 51. a Z-direction slide rail; 52. an electric telescopic rod; 53. a Y-direction slide rail; 6. an air pressure detection mechanism; 61. a rod body; 611. a detection unit; 612. a rotating electric machine; 613. a second screw; 614. a joining block; 62. a servo motor; 63. a first screw; 64. a silica gel sucker; 65. a pressure sensor; 66. micropores; 7. a gravity sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-4, a liquid crystal display surface leakage detection device, including base 1, mesa 2, fixed establishment 3, elevating system 4, collateral branch frame 5 and pneumatic detection mechanism 6, there is annular mesa 2 upper end four corners through bolt fixedly connected with of base 1, sliding connection has fixed establishment 3 in the middle part dead slot of mesa 2, the upper surface of fixed establishment 3 is equipped with gravity inductor 7, and be connected with elevating system 4, collateral branch frame 5 is installed at the upper end edge of mesa 2, the middle part sliding connection of two collateral branch frames 5 has pneumatic detection mechanism 6, gravity inductor 7 is connected with elevating system 4 and collateral branch frame 5 respectively.
The fixing mechanism 3 comprises a panel 31 and an air extractor 32, wherein an air hole 33 is formed in the upper surface of the panel 31, the air hole 33 is communicated with the inner cavity of the panel 31, and the inner cavity of the panel 31 is connected with the air extractor 32; air pump 32 internally mounted has the air pump, and the inside cavity of panel 31 is connected with the air pump through flexible rubber hose, and when gravity inductor 7 sensed the LCD screen and placed on panel 31, air pump 32 started immediately, and the air in the inside cavity of extraction panel 31 forms vacuum state, and then adsorbs fixedly with the LCD screen.
The lifting mechanism 4 comprises a cylinder assembly 41, an X-shaped bracket 42, a limiting cylinder 43 and guide columns 44, the guide columns 44 are welded at four corners of the X-shaped bracket 42 and are fixedly connected with the base 1, the guide columns 44 are connected to the middle part of the limiting cylinder 43 in a sliding manner, and the limiting cylinder 43 is welded at four corners of the panel 31; after the air pump 32 adsorbs and fixes the liquid crystal screen, the air cylinder assembly 41 is started, the panel 31 moves downwards along the middle empty groove of the table top 2, and stops after moving for 2-5 cm, so that the periphery of the liquid crystal screen is limited.
The side support 5 comprises a Z-direction slide rail 51, an electric telescopic rod 52 and a Y-direction slide rail 53, the Z-direction slide rail 51 is connected with the Y-direction slide rail 53 in a sliding manner, the Y-direction slide rail 53 is connected with the table top 2 through the electric telescopic rod 52, the electric telescopic rod 52 drives the Y-direction slide rail 53 to slide along the Z-direction slide rail 51, and then the Y-direction slide rail 53 moves in the vertical direction.
Referring to fig. 5-6, the air pressure detecting mechanism 6 includes rod bodies 61, a servo motor 62 and a first screw 63, wherein the rod bodies 61 are connected with each other through the first screw 63, and the first screw 63 is connected with the servo motor 62; the servo motor 62 drives the first screw 63 to rotate, and the rod body 61 moves along the Y-direction slide rail 53 to change the position, so that the end face of the liquid crystal display is comprehensively detected.
The rod body 61 is rectangular, the edge of the lower end face of the rod body 61 is fixedly connected with a silica gel sucker 64, the middle of the lower end face of the rod body 61 is provided with a pressure sensor 65 and a micropore 66, and the micropore 66 is connected with a gas-liquid mixing pump; silica gel sucking disc 64 pastes tight LCD screen upper surface and draws to electric telescopic handle 52 upwards, and there is suction on silica gel sucking disc 64 and LCD screen surface, if there is gap, damaged or weak department on the LCD screen surface, under the suction effect, the inside liquid of LCD screen can be followed gap, damaged or weak department and outwards permeate, and pressure reduction between silica gel sucking disc 64 and the LCD screen surface after the infiltration, pressure sensors 65's numerical value reduces.
Referring to fig. 9, in order to better show the flow of detecting liquid leakage on the surface of the liquid crystal display, the embodiment provides a method for detecting liquid leakage on the surface of the liquid crystal display, which includes the following steps:
s101: placing the liquid crystal screen on the panel 31, adsorbing the upper surface of the liquid crystal screen through the silica gel sucker 64, and applying a certain suction force to fix the liquid crystal screen;
s102: the electric telescopic rod 52 drives the Y-direction sliding rail 53 and the air pressure detection mechanism 6 to move downwards, and after the silica gel suction cup 64 is tightly attached to the liquid crystal display, the electric telescopic rod 52 is lifted upwards; the lifting distance can directly influence the pressure between the silica gel sucker 64 and the surface of the liquid crystal screen, and no obvious leakage exists in the tiny gaps, damages or weak positions on the surface of the liquid crystal screen, but the situation that the tiny leakage exists or the great leakage risk exists;
s103: the gas-liquid mixing pump inputs gas into the silica gel sucker 64 through the micropore 66, and the silica gel sucker 64 loosens the surface of the liquid crystal screen;
s104: atmospheric pressure detection mechanism 6 moves up, and servo motor 62 drives first screw rod 63 rotatory, and the body of rod 61 is followed Y and is to slide rail 53 translation, changes the detection position, can detect the LCD screen comprehensively to according to the position that many bodies of rod 61 or detecting element 611 can accurately reveal, the trace liquid of revealing is in the vacuum space, does not expose in the air, prevents that liquid from directly revealing externally and causing environmental pollution.
Example two:
referring to fig. 7-8, the rod body 61 includes a detection unit 611, a rotating motor 612, a second screw 613 and a connection block 614, the rotating motor 612 is installed on a side wall of the connection block 614, the rotating motor 612 and the second screw 613 are connected with each other, a plurality of detection units 611 are connected in series on the second screw 613, the detection units 611 slide along the connection block 614, a silica gel suction cup 64 is fixedly connected to an edge of a lower end surface of the detection unit 611, a pressure sensor 65 is installed in the middle of the lower end surface of the detection unit 611, a micropore 66 is formed in the middle of the lower end surface of the detection unit 611, and the micropore 66 is connected with the gas-liquid mixing pump.
Referring to fig. 9, in order to better show the flow of detecting liquid leakage on the surface of the liquid crystal display, the embodiment provides a method for detecting liquid leakage on the surface of the liquid crystal display, which includes the following steps:
s101: placing the liquid crystal screen on the panel 31, adsorbing the upper surface of the liquid crystal screen through the silica gel sucker 64, and applying a certain suction force to fix the liquid crystal screen;
s102: the electric telescopic rod 52 drives the Y-direction sliding rail 53 and the air pressure detection mechanism 6 to move downwards, and after the silica gel suction cup 64 is tightly attached to the liquid crystal display, the electric telescopic rod 52 is lifted upwards; the lifting distance can directly influence the pressure between the silica gel sucker 64 and the surface of the liquid crystal screen, and no obvious leakage exists in the tiny gaps, damages or weak positions on the surface of the liquid crystal screen, but the situation that the tiny leakage exists or the great leakage risk exists;
s103: the gas-liquid mixing pump inputs gas into the silica gel sucker 64 through the micropore 66, and the silica gel sucker 64 loosens the surface of the liquid crystal screen;
s104: the air pressure detection mechanism 6 moves upwards, the servo motor 62 drives the first screw 63 to rotate, the rod bodies 61 translate along the Y-direction slide rail 53, the detection positions are changed, the liquid crystal screen can be comprehensively detected, and according to the positions of the rod bodies 61 or the detection units 611, the leakage trace liquid is in a vacuum space and is not exposed in the air, so that the liquid is prevented from directly leaking outside to cause environmental pollution; the rotating motor 612 rotates the second screw 613 to drive the detecting unit 611 to slide along the engaging block 614, so as to change the detecting position of the detecting unit 611.
In summary, the following steps: according to the liquid crystal screen surface leakage detection device and method, the upper surface of the liquid crystal screen is adsorbed by the silica gel sucker 64, a certain suction force is applied, if the liquid crystal screen leakage can be known through the numerical change of the pressure sensor 65, the situation that no obvious leakage exists at the tiny gaps, damages or weak positions on the surface of the liquid crystal screen, but the tiny leakage exists or the liquid crystal screen has a great leakage risk is realized, the leakage position can be accurately determined according to the positions of the plurality of rod bodies 61 or the detection units 611, and the leaked trace liquid is in a vacuum space and is not exposed in the air, so that the liquid is prevented from being directly leaked outside to cause environmental pollution.
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 able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The liquid crystal display surface leakage detection device is characterized by comprising a base (1), a table top (2), a fixing mechanism (3), a lifting mechanism (4), side supports (5) and an air pressure detection mechanism (6), wherein four corners of the upper end of the base (1) are fixedly connected with the annular table top (2) through bolts, the fixing mechanism (3) is connected in a sliding mode in a middle empty groove of the table top (2), a gravity sensor (7) is arranged on the upper surface of the fixing mechanism (3) and connected with the lifting mechanism (4), the side supports (5) are installed on the edge of the upper end of the table top (2), the air pressure detection mechanism (6) is connected in a sliding mode in the middle of each of the two side supports (5), and the gravity sensor (7) is connected with the lifting mechanism (4) and the side supports (5) respectively;
the air pressure detection mechanism (6) comprises rod bodies (61), a servo motor (62) and a first screw (63), the rod bodies (61) are connected with one another through the first screw (63), and the first screw (63) is connected with the servo motor (62);
the rod body (61) comprises a detection unit (611), a rotating motor (612), a second screw rod (613) and a connecting block (614), the rotating motor (612) is installed on the side wall of the connecting block (614), the rotating motor (612) is connected with the second screw rod (613) mutually, a plurality of detection units (611) are connected to the second screw rod (613) in series, the detection units (611) slide along the connecting block (614), a silica gel sucker (64) is fixedly connected to the edge of the lower end face of each detection unit (611), a pressure sensor (65) is installed in the middle of the lower end face of each detection unit (611) and provided with a micropore (66), and each micropore (66) is connected with a gas-liquid mixing pump;
side support (5) include Z to slide rail (51), electric telescopic handle (52) and Y to slide rail (53), and Z is connected with Y to slide rail (53) to slide rail (51) sliding connection, and Y is connected through electric telescopic handle (52) between slide rail (53) and mesa (2), and servo motor (62) drive first screw rod (63) rotatory, and the body of rod (61) is followed Y and is translated to slide rail (53).
2. The device for detecting the liquid leakage on the surface of the liquid crystal display panel as claimed in claim 1, wherein the fixing mechanism (3) comprises a panel (31) and an air extractor (32), an air hole (33) is formed in the upper surface of the panel (31), the air hole (33) is communicated with the inner cavity of the panel (31), and the inner cavity of the panel (31) is connected with the air extractor (32).
3. The device for detecting the liquid leakage on the surface of the liquid crystal display panel according to claim 2, wherein the lifting mechanism (4) comprises a cylinder assembly (41), an X-shaped bracket (42), a limiting cylinder (43) and guide posts (44), the guide posts (44) are welded at four corners of the X-shaped bracket (42) and are fixedly connected with the base (1), the guide posts (44) are slidably connected to the middle of the limiting cylinder (43), and the limiting cylinder (43) is welded at four corners of the panel (31).
4. A method of detecting the liquid leakage on the surface of the liquid crystal display panel according to claim 3, comprising the steps of:
s101: the liquid crystal screen is placed on the panel (31) and fixed;
s102: the electric telescopic rod (52) drives the Y-direction sliding rail (53) and the air pressure detection mechanism (6) to move downwards, and after the silica gel sucker (64) is tightly attached to the liquid crystal screen, the electric telescopic rod (52) is lifted upwards;
s103: the gas-liquid mixing pump inputs gas into the silica gel sucker (64) through the micropore (66), and the silica gel sucker (64) loosens the surface of the liquid crystal screen;
s104: air pressure detection mechanism (6) shifts up, and servo motor (62) drive first screw rod (63) and rotate, and body of rod (61) are followed Y and are translated to slide rail (53), change the detection position.
5. The method of claim 4, wherein the second screw (613) is rotated by the post-rotation motor (612) in S104, so as to drive the detection unit (611) to slide along the connection block (614), thereby changing the detection position of the detection unit (611).
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| CN202010403354.6A CN111562063B (en) | 2020-05-13 | 2020-05-13 | Liquid crystal display surface leakage detection device and method |
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| CN103512712B (en) * | 2012-06-29 | 2016-02-10 | 新普科技股份有限公司 | Battery quality pick-up unit and method |
| CN104714313B (en) * | 2013-12-11 | 2018-07-24 | 苏州三星显示有限公司 | Liquid crystal display detects and assembling device |
| CN205580692U (en) * | 2016-03-04 | 2016-09-14 | 中国石油集团渤海钻探工程有限公司 | T type welding seam vacuum test ware |
| CN205855371U (en) * | 2016-07-05 | 2017-01-04 | 无锡特恒科技有限公司 | Liquid crystal display screen handling equipment |
| CN207832400U (en) * | 2018-02-01 | 2018-09-07 | 深圳市锦嘉电子有限公司 | A kind of universal touch screen sealing performance testing cassete |
| CN207832401U (en) * | 2018-02-01 | 2018-09-07 | 深圳市锦嘉电子有限公司 | A kind of touch screen sealing property testing system of automatic alarm |
| CN108319046A (en) * | 2018-04-01 | 2018-07-24 | 苏州梅克兰检测服务有限公司 | A kind of liquid crystal display detection device |
| CN108897159A (en) * | 2018-09-05 | 2018-11-27 | 贵州华旭光电技术有限公司 | LCD liquid crystal display cutter device |
| CN109238577A (en) * | 2018-10-24 | 2019-01-18 | 深圳市三鑫科技发展有限公司 | Curtain wall leak detection apparatus and detection method |
| CN208872981U (en) * | 2018-11-02 | 2019-05-17 | 深圳梦牌智能技术有限公司 | A kind of liquid crystal display detection device |
| CN209727382U (en) * | 2019-04-26 | 2019-12-03 | 刘成华 | A kind of heavy-duty automotive speed changer shell leakage point examination device |
| CN209946581U (en) * | 2019-06-03 | 2020-01-14 | 深圳市新鹏科技有限公司 | Liquid crystal display screen detection device |
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Denomination of invention: A liquid leakage detection device and method for liquid crystal screen surface Effective date of registration: 20221221 Granted publication date: 20220315 Pledgee: Ma'anshan branch of Bank of China Ltd. Pledgor: ANHUI DIXIAN ELECTRONIC Co.,Ltd. Registration number: Y2022980028375 |
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Granted publication date: 20220315 Pledgee: Ma'anshan branch of Bank of China Ltd. Pledgor: ANHUI DIXIAN ELECTRONIC Co.,Ltd. Registration number: Y2022980028375 |
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