CN101945526A - Anti-static device and method for repairing PDP module - Google Patents
Anti-static device and method for repairing PDP module Download PDFInfo
- Publication number
- CN101945526A CN101945526A CN2010102835144A CN201010283514A CN101945526A CN 101945526 A CN101945526 A CN 101945526A CN 2010102835144 A CN2010102835144 A CN 2010102835144A CN 201010283514 A CN201010283514 A CN 201010283514A CN 101945526 A CN101945526 A CN 101945526A
- Authority
- CN
- China
- Prior art keywords
- static
- earth
- ground wire
- crocodile clip
- static ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses an anti-static device and method for repairing a PDP module. Static charge above on a display module is discharged to the ground through a ground wire by using the static charge ground discharging principle so as to reduce accumulation of the static charge on the display module. The invention has the advantages that a display screen anti-static ground system, a backplate and PCB (Printed Circuit Board) anti-static ground system and a human body anti-static ground system are used to discharge the static charge above the display module to the ground, thereby reducing the accumulation of the static charge when the display module is repaired, reducing the acting time of static voltage and current and effectively reducing damage to the products caused by static electricity; besides, the single static ground wire is directly connected with the ground without connecting with other ground wires, thereby effectively preventing safety accidents such as leakage backflow and guaranteeing personal safety of maintenance personnel.
Description
Technical field
The present invention relates to anti-static device and method that a kind of PDP module is repaired.
Background technology
In PDP demonstration module and complete machine manufacturing, research and development test and after-sale service process, need showing that module keeps in repair.In maintenance process, the protection of product is a most important ring of maintenance engineering.If it is improper that the product protection is done, original fault point has been repaired, but cause new fault accidentally in other places.Final products are not still repaired.Like this, the protection works of product are the engineerings of the indispensability of maintenance engineering.It is one of key technology that influences product maintenance success or failure and maintenance efficiency, repair quality.
Electronic product protection is divided into protection, electromagnetic shielding and the antistatic of protection, environment and chemical corrosion of protection, the thermal shock of mechanical impact.The present invention carries out the solution and the device for carrying out said of product protection from the angle of antistatic to showing module maintenance process.
Static is a kind of ubiquitous phenomenon of nature.The characteristics of static be high voltage, low electric weight, little electric current and action time short characteristics.Static is exactly an actionless charged particles, normally because friction causes with separating, rub causes heat to the static great majority, impels the molecule in the material internal to enliven, two kinds of materials are separated then, and electronics just may take place to other material from a kind of substance transfer.The action of human body self or with the contacting of other objects, separate, factors such as friction or induction can produce the static of several kilovolts even volts up to ten thousand.Static causes serious harm in a plurality of fields.Triboelectrification and static electricity on human body are two harm greatly that show the module maintenance.The major measure of electrostatic defending is static leakage, dissipation, neutralization, humidification, shielding and ground connection.The present invention utilizes earth connection to go the electrostatic charge the earth of releasing exactly.
PDP shows that module is made of display screen, backboard and PCB assembly.Display screen is undertaken bonding with being connected of backboard by mightiness belt.Display screen is connected except adhesive tape with backboard, also has graphite flake that non-adhesive tape zone is filled.The screen front and rear surfaces is a glass.Wherein adhesive tape and glass are not the good conductors of electricity, and electrostatic charge can not move freely on these materials.Graphite flake is the good conductor of electricity, and electrostatic charge can move freely on him.Be being connected of backboard and PCB assembly that the screw hole by the screw post above the backboard or convex closure and PCB assembly is fastening together by the set screws component.The PCB assembly closely contacts with screw post or convex closure above the backboard by ground connection weld tabs or copper sheet.Backboard is to be stamped to form by metal material, and it is electric good conductor, and electrostatic charge can move freely on him.The PCB assembly is one and is welded by components and parts, printed board dress connection that circuit path can allow electrostatic charge move freely.Like this, by contacting of backboard screw post and PCB assembly ground connection weld tabs or pad, electric charge just can move freely between backboard and PCB assembly.
Static is divided into two kinds to the damage mode that shows module: the one, and static is to the damage of display screen; The 2nd, static is to the damage of PCB assembly.The backboard not damage of static to showing module.
Static mainly is to realize by the wall electric charge that influences display screen the inside luminescence unit to the damage of display screen.Electrostatic adherence is at display screen face glass or on glass overleaf, can by electrostatic induction influence display screen the inside luminescence unit the wall electric charge positive and negative and wall electric charge how much.When electrostatic charge is a positive charge, then the positive charge of the wall electric charge of display screen the inside luminescence unit has minimizing trend, and negative electrical charge has the trend of increase; When electrostatic charge is a negative electrical charge, then the negative electrical charge of the wall electric charge of display screen the inside luminescence unit has minimizing trend, and positive charge has the trend of increase; Electrostatic charge is many more, and then electrostatic potential is strong more, and the trend that the wall electric charge increases or reduces is obvious more; Electrostatic charge is few more, and then electrostatic potential is weak more, and the trend that the wall electric charge increases or reduces is faint more; The wall electric charge is to influence one of two luminous base quantitys of PDP luminescence unit, and the wall electric charge is because not controlled increase and decrease appears in the reason of electrostatic charge, and it is not controlled luminous and not luminous to cause luminescence unit to occur in luminous.We claim this not controlled luminous and not luminous for misplacing., because causing the electricity that misplaces of maintenance module, electrostatic charge must release in order to reduce to the electrostatic charge above the display screen.
Mainly to be electrostatic charge to the components and parts of PCB assembly cause to lose efficacy electrostatic charge realizes to the damage of PCB assembly.For electrostatic sensitivity device, a certain amount of electrostatic charge acts on device outer case or the pin, when surpassing the highest the bear threshold value of device to the voltage or the electric current of static, will cause that device medium, body puncture or latch-up.The degree that lost efficacy is relevant with electrostatic level.When the electrostatic charge level is very high, can cause the imminent failure of device; When the electrostatic charge level is very high accidentally, can cause the time-delay of device to lose efficacy.In order to reduce the inefficacy level of component failure and even PCB assembly, must release to the electrostatic charge above the PCB assembly.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides anti-static device and method that a kind of PDP module is repaired, the principle of utilizing electrostatic charge ground connection to release, to show that electrostatic charge above the module by the earth connection the earth the inside of releasing, has so just reduced the accumulation of electrostatic charge on the demonstration module.
The technical solution adopted for the present invention to solve the technical problems is: the anti-static device that a kind of PDP module is repaired, comprise level screen supporting surface, on level screen supporting surface, conductive fabric is set, conductive fabric is connected with first static ground wire, is joining with the earth behind earth resistance of series connection on first static ground wire; Be connected with second static ground wire between first static ground wire and earth resistance, second static ground wire is connected with the flexible wire of band crocodile clip; Also being provided with the 3rd static ground wire directly is connected with the earth.
The connected mode of the described conductive fabric and first static ground wire is: the peeling bare wire of the conductive fabric and first static ground wire is pasted, and is wound with lead at the tie point place.
The anti-static method that the present invention also provides a kind of PDP module to repair may further comprise the steps:
The test of the first step, resistance to earth is determined: for human body anti-static grounding system, test point one end is the 3rd static ground wire, and an end is a earth, and test result should be smaller or equal to 10 Ω; For the anti-static grounding system of backboard and PCB assembly, test point one end is the crocodile clip flexible wire, and an end is a earth, and test result should be in the scope of 0.9 to 1.1M Ω; For the anti-static grounding system of display screen, test point one end is a conductive fabric, and an end is a earth, and test result should be in the scope of 0.9 to 1.1M Ω; Simultaneously, also will test definitely to the resistance to earth of ESD-preventive wrist strap, test result should be in the scope of 0.9 to 1.1M Ω;
Second the step, will show that the display panel of module is placed on the screen supporting surface of anti-static system, realize contacting of display screen and conductive fabric, the electrostatic charge above the display screen front glass is by first static ground wire, the earth resistance of conductive fabric and the conductive fabric connection the earth of releasing;
The 3rd the step, utilize the crocodile clip on the crocodile clip lead that backboard is carried out clamping, the PCB assembly is by the switching realization of backboard screw post and being electrically connected of crocodile clip lead, second static ground wire, the earth resistance that the electrostatic charge above the PCB assembly connects by crocodile clip lead and the crocodile clip lead the earth of releasing; Backboard, crocodile clip lead, second static ground wire, the earth resistance that the electrostatic charge of glass connects by graphite flake and graphite flake behind the display screen the earth of releasing;
The crocodile clip of the 4th step, ESD-preventive wrist strap that the maintenance personal is worn is clamped to the 3rd static ground wire, the 3rd static ground wire that maintenance personal's electrostatic charge is connected by ESD-preventive wrist strap and the ESD-preventive wrist strap the earth of releasing;
The 5th step, repair finish after, unclamp being connected of crocodile clip and ESD-preventive wrist strap and the 3rd static ground wire, move away from and repair the demonstration module.
Compared with prior art, good effect of the present invention is: adopt display screen anti-static grounding system, backboard and PCB anti-static grounding system and human body anti-static grounding system, electrostatic charge above the module the earth the inside of releasing will be shown, reduced the accumulation of electrostatic charge when the demonstration module is repaired, reduced the action time of electrostatic potential and electric current, thereby reduced the damage of static effectively product; And adopt independent static ground wire directly to link to each other with the earth, and do not have to connect with other ground wires, prevented the generation of security incidents such as electric leakage refluence effectively, guaranteed maintenance personal's personal safety.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation of device of the present invention;
Fig. 2 is the operation step map of method of the present invention.
Embodiment
The anti-static device that a kind of PDP module is repaired is divided into display screen anti-static grounding system, backboard and PCB anti-static grounding system and human body anti-static grounding system three parts, specifically as shown in Figure 1:
Supporter when utilizing a level screen supporting surface 26 as the maintenance of demonstration module utilizes conductive fabric 25, first static ground wire 27, and earth resistance 22 and the earth 23 constitute display screen anti-static grounding systems.Conductive fabric 25 has extremely low conducting resistance, and it is the good conductor of electrostatic charge.Conductive fabric 25 is to paste on the peeling bare wire of first static ground wire 27 by conductive fabric 25 with being connected of first static ground wire 27, be wrapped in their tie point then with lead, to realize reliable fastening connection, even the lead place that can use electric iron that the scolding tin built-up welding is being twined, make whole tie point and be winding into as a wholely, strengthen coupling reliability.Earth resistance 22 of first static ground wire, 27 series connection joins with the earth 23 again.Earth resistance 22 resistances require within 1M Ω ± 10%.Series connection earth resistance 22 mainly is to prevent that electrostatic charge from releasing too fast and cause big electric current, because the mobile meeting of big electric current causes security risk to product, equipment and personnel.
Utilize flexible wire 24, second static ground wire 28 of band crocodile clip, earth resistance 22 and the earth 23 constitute backboard and PCB anti-static grounding system.The crocodile clip of the flexible wire 24 of crocodile clip is for clamping, guarantees the positive connection of static ground wire and backboard and PCB component system and usefulness.Earth resistance 22 of second static ground wire, 28 series connection joins with the earth 23 again.Earth resistance 22 resistances require within 1M Ω ± 10%.Series connection earth resistance 22 mainly is to prevent that electrostatic charge from releasing too fast and cause big electric current, because the mobile meeting of big electric current causes damage to components and parts above the PCB assembly.
Utilize the 3rd static ground wire 21, the earth 23 constitutes human body anti-static grounding system.If the grounding system that the human body anti-static system is special, its electrostatic charge on the human body can be released the earth the inside, but in order to prevent security incident such as electric leakage refluences, the assurance personal security connects so can not have with other ground wires.Native system is directly linked to each other with the earth 23 by the 3rd static ground wire 21.
The anti-static method that a kind of PDP module is repaired as shown in Figure 2, comprises the steps:
Simultaneously, also to test definite to the resistance to earth of ESD-preventive wrist strap, test result should be in the scope of 0.9 to 1.1M Ω, if actual resistance is not within this scope, then this ESD-preventive wrist strap is problematic, human body anti-static grounding system can not be inserted, the ESD-preventive wrist strap within the scope that resistance is 0.9 to 1.1M Ω should be replaced to.
The 3rd step 33 is that the crocodile clip on the crocodile clip lead 24 is carried out reliable clamping to backboard.By this step, the PCB assembly is by the switching realization of backboard screw post and being electrically connected of crocodile clip lead 24, second static ground wire 28, the earth resistance 22 that the electrostatic charge above the PCB assembly just connects by crocodile clip lead 24 and crocodile clip lead 24 the earth 23 of releasing.Backboard, crocodile clip lead 24, second static ground wire 28, the earth resistance 22 that the electrostatic charge of glass connects by graphite flake and graphite flake behind the display screen the earth 23 of releasing.
The 4th step 34 is that the crocodile clip of ESD-preventive wrist strap that the maintenance personal is worn is clamped to the 3rd static ground wire 21 by this step, the maintenance personal links to each other with the 3rd static ground wire 21 by ESD-preventive wrist strap, the 3rd static ground wire 21 that maintenance personal's electrostatic charge just is connected by ESD-preventive wrist strap and the ESD-preventive wrist strap the earth 23 of releasing.
The 5th step 35 be repair finish after, unclamp being connected of crocodile clip and ESD-preventive wrist strap and the 3rd static ground wire 21.Like this, repaired the demonstration module except that display screen anti-static grounding system also is in connection, backboard PCB assembly anti-static grounding system and human body anti-static grounding system all are in off-state.This moves away from the condition that provides for showing module.
The 6th step 36 moved away from and repaired the demonstration module, for next maintenance that shows module provides condition.Antistatic work that shows module of maintenance just is through with like this.
Claims (3)
1. the anti-static device repaired of a PDP module, it is characterized in that: comprise level screen supporting surface, on level screen supporting surface conductive fabric is set, conductive fabric is connected with first static ground wire, is joining with the earth behind earth resistance of series connection on first static ground wire; Be connected with second static ground wire between first static ground wire and earth resistance, second static ground wire is connected with the flexible wire of band crocodile clip; Also being provided with the 3rd static ground wire directly is connected with the earth.
2. the anti-static device that PDP module according to claim 1 is repaired, it is characterized in that: the connected mode of the described conductive fabric and first static ground wire is: the peeling bare wire of the conductive fabric and first static ground wire is pasted, and is wound with lead at the tie point place.
3. the anti-static method repaired of a PDP module is characterized in that: may further comprise the steps:
The test of the first step, resistance to earth is determined: for human body anti-static grounding system, test point one end is the 3rd static ground wire, and an end is a earth, and test result should be smaller or equal to 10 Ω; For the anti-static grounding system of backboard and PCB assembly, test point one end is the crocodile clip flexible wire, and an end is a earth, and test result should be in the scope of 0.9 to 1.1M Ω; For the anti-static grounding system of display screen, test point one end is a conductive fabric, and an end is a earth, and test result should be in the scope of 0.9 to 1.1M Ω; Simultaneously, also will test definitely to the resistance to earth of ESD-preventive wrist strap, test result should be in the scope of 0.9 to 1.1M Ω;
Second the step, will show that the display panel of module is placed on the screen supporting surface of anti-static system, realize contacting of display screen and conductive fabric, the electrostatic charge above the display screen front glass is by first static ground wire, the earth resistance of conductive fabric and the conductive fabric connection the earth of releasing;
The 3rd the step, utilize the crocodile clip on the crocodile clip lead that backboard is carried out clamping, the PCB assembly is by the switching realization of backboard screw post and being electrically connected of crocodile clip lead, and the electrostatic charge above the PCB assembly is by the crocodile clip lead and lead second static ground wire, earth resistance that the crocodile clip lead the connects the earth of releasing; The backboard that the electrostatic charge of glass connects by graphite flake and graphite flake behind the display screen, lead crocodile clip lead, second static ground wire, the earth resistance the earth of releasing;
The crocodile clip of the 4th step, ESD-preventive wrist strap that the maintenance personal is worn is clamped to the 3rd static ground wire, the 3rd static ground wire that maintenance personal's electrostatic charge is connected by ESD-preventive wrist strap and the ESD-preventive wrist strap the earth of releasing;
The 5th step, repair finish after, unclamp being connected of crocodile clip and ESD-preventive wrist strap and the 3rd static ground wire, move away from and repair the demonstration module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283514 CN101945526B (en) | 2010-09-16 | 2010-09-16 | Anti-static device and method for repairing PDP module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283514 CN101945526B (en) | 2010-09-16 | 2010-09-16 | Anti-static device and method for repairing PDP module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101945526A true CN101945526A (en) | 2011-01-12 |
| CN101945526B CN101945526B (en) | 2013-04-10 |
Family
ID=43437194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010283514 Expired - Fee Related CN101945526B (en) | 2010-09-16 | 2010-09-16 | Anti-static device and method for repairing PDP module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101945526B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383359A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Real-time Transportation of Dangerous Chemicals natural hazard risk monitoring device and method |
| US11363745B1 (en) | 2020-07-07 | 2022-06-14 | Waymo Llc | Housing for display electromagnetic shielding and electrostatic grounding |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1758842A (en) * | 2005-03-21 | 2006-04-12 | 四川世创达电子科技有限公司 | Method for manufacturing electromagnetic shielding film of POP protection screen |
| CN1979222A (en) * | 2006-11-30 | 2007-06-13 | 中国乐凯胶片集团公司 | Reflection-proof film |
| KR100801100B1 (en) * | 2006-04-03 | 2008-02-04 | 우 옵트로닉스 코포레이션 | System for eliminating electrostatic charges |
| JP2008084656A (en) * | 2006-09-27 | 2008-04-10 | Kyoto Univ | X-ray irradiation type ionizer |
| JP4374948B2 (en) * | 2003-08-25 | 2009-12-02 | セイコーエプソン株式会社 | Static elimination method, static elimination device, and droplet discharge device equipped with the same |
| US7660097B2 (en) * | 2003-08-14 | 2010-02-09 | Sunje Hitek Co., Ltd. | Device for removing electrostatic charges on an object using soft X-ray |
| CN201813605U (en) * | 2010-09-16 | 2011-04-27 | 四川虹欧显示器件有限公司 | Anti-static device for repair of PDP (plasma display panel) module |
-
2010
- 2010-09-16 CN CN 201010283514 patent/CN101945526B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7660097B2 (en) * | 2003-08-14 | 2010-02-09 | Sunje Hitek Co., Ltd. | Device for removing electrostatic charges on an object using soft X-ray |
| JP4374948B2 (en) * | 2003-08-25 | 2009-12-02 | セイコーエプソン株式会社 | Static elimination method, static elimination device, and droplet discharge device equipped with the same |
| CN1758842A (en) * | 2005-03-21 | 2006-04-12 | 四川世创达电子科技有限公司 | Method for manufacturing electromagnetic shielding film of POP protection screen |
| KR100801100B1 (en) * | 2006-04-03 | 2008-02-04 | 우 옵트로닉스 코포레이션 | System for eliminating electrostatic charges |
| JP2008084656A (en) * | 2006-09-27 | 2008-04-10 | Kyoto Univ | X-ray irradiation type ionizer |
| CN1979222A (en) * | 2006-11-30 | 2007-06-13 | 中国乐凯胶片集团公司 | Reflection-proof film |
| CN201813605U (en) * | 2010-09-16 | 2011-04-27 | 四川虹欧显示器件有限公司 | Anti-static device for repair of PDP (plasma display panel) module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383359A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Real-time Transportation of Dangerous Chemicals natural hazard risk monitoring device and method |
| CN109383359B (en) * | 2017-08-09 | 2020-10-09 | 中国石油化工股份有限公司 | Real-time dangerous chemical transportation inherent danger degree monitoring device and method |
| US11363745B1 (en) | 2020-07-07 | 2022-06-14 | Waymo Llc | Housing for display electromagnetic shielding and electrostatic grounding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101945526B (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103033100B (en) | A kind of electrostatic prevention structure of electric detonator | |
| CN202470918U (en) | Electromagnetic reinforcement semiconductor bridge detonator | |
| CN101945526B (en) | Anti-static device and method for repairing PDP module | |
| CN106207069A (en) | A kind of a kind of method that battery and polymer soft electric core are connected in parallel | |
| CN202471862U (en) | Circuit structure for electrostatic discharge generator | |
| CN201813605U (en) | Anti-static device for repair of PDP (plasma display panel) module | |
| CN203760407U (en) | Master control type temperature fuse device and temperature fuse device | |
| US11417914B2 (en) | Battery, electronic device and battery pack | |
| WO2006035537A1 (en) | Lightning arrester | |
| CN111009223A (en) | Source driver and display device | |
| CN206099331U (en) | Circuit board is with big through -flow power surge protection device | |
| CN107624201A (en) | interconnection for battery pack protection | |
| CN204721706U (en) | There is the flexible PCB of electrostatic-proof function | |
| CN101677134A (en) | Battery pack and method of manufacturing the same | |
| CN106782955A (en) | Piezoresistive element with overtemperature protection | |
| CN206370318U (en) | Piezoresistive element with overtemperature protection | |
| CN201230416Y (en) | Composite housing improvement construction | |
| CN207896127U (en) | Battery and electronic equipment including the battery | |
| CN209045264U (en) | A kind of Thermal protection type varistor | |
| CN207801465U (en) | A kind of lithium battery protection circuit applied to Intelligent bracelet | |
| CN220235202U (en) | Electronic equipment | |
| CN206003852U (en) | A kind of lithium ion battery | |
| CN220210651U (en) | Display module assembly for performing point discharge in binding PIN | |
| CN211378344U (en) | Anti high-voltage electrostatic discharge device | |
| CN204992545U (en) | Circuit structure based on lithium battery protection board prevent static electricity discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20160916 |