CN1571619A - Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability - Google Patents
Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability Download PDFInfo
- Publication number
- CN1571619A CN1571619A CN 03147490 CN03147490A CN1571619A CN 1571619 A CN1571619 A CN 1571619A CN 03147490 CN03147490 CN 03147490 CN 03147490 A CN03147490 A CN 03147490A CN 1571619 A CN1571619 A CN 1571619A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- button
- push
- button unit
- static
- 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 equipment providing static discharge protection, it can protect key press module of touch control, this module includes the circuit basic plate ,the key press cell and the key press marking plate at least, utilizing insulation covering and electric flat to insulate static and discharge, thereby, the key press module of touch control can be protected; so it can provide a static discharge protection for key press module of touch control, and invents a equipment with this module.
Description
Technical field
The present invention relates to a kind of electrostatic discharge protective equipment, particularly relate to a kind of electrostatic discharge protective equipment that is applicable to the touch-controlled key module.
Background technology
Static discharge (Electrostatic Discharge, below be called for short with ESD) is prevalent in measurement, assembling, installation and the use of integrated circuit, and it may cause the damage of integrated circuit, and the function of remote-effects electronic system.Yet, form the reason of ESD stress, modal is following three kinds of models: (1) human body discharge mode (human body model): No. 883 method 3015.6 (MIL-STD-883 of U.S. army's 105D military standard 105D, Method 3015.6) model that defined, the ESD stress that it is caused when representing human body institute static electrification to touch the pin of integrated circuit.(2) machine pattern (machine model): the ESD stress that machine institute static electrification is caused when touching IC bond, to have the method for measurement that industrial standard EIAJ-IC-121 method 20 is defined now.(3) electric charge component pattern (charge devicemodel): the former integrated circuit that has had electric charge is in process subsequently, and therefore contact ground connection conductive materials forms an esd pulse path to integrated circuit.
Most of electronic products time of 99% in life cycle all can be in the ESD environment, and the ESD interference can cause the equipment deadlock, restarts, loss of data or reliability decrease.In the destruction of ESD, static can cause crushing infringement to the I/O port, might cause data bit ghost image, damage of product and causes the damage of electronic equipment hardware fault or spare part.
ESD destroy great majority significantly influence be component failures, unexpected static discharges and can destroy electrostatic sensitive assembly or microcircuit on finger or other conductor.Being in the electronic building brick that static discharges in the danger may be unaffected fully, or has produced damage but can not be discovered immediately, but because the intermediate strata quality reduces, its life expectancy may reduce, a potential equipment availability fault that Here it is.Esd event causes the assembly quality to reduce, and causes inefficacy when continuing to use.The destruction of ESD can be cumulative, and is bad when causing impaired assembly function fashion, and this class fault has certain disguise.Another significant effects of ESD is the interference for implement.Can be operated system by the energy of esd event transmission and emission and think valid data by mistake, cause in data transmission procedure, causing temporary error, under more serious situation, equipment may produce serious fault, causes misoperation or electronic building brick to damage as the touch-controlled key module because of influenced by ESD.
Because the touch switch is being seen everywhere on the market at present, yet for the influence that its ESD caused good settling mode is not arranged,, be quite suitable settling mode therefore thereby avoid the generation of ESD if to prevent static charge buildup.
Summary of the invention
Main purpose of the present invention is to provide a kind of electrostatic discharge protective equipment, particularly relevant for a kind of electrostatic discharge protective equipment that is applicable to the touch-controlled key module, to address the above problem.
In order to achieve the above object, the present invention proposes a kind of electrostatic discharge protective equipment, in order to protect a touch-controlled key module.The touch-controlled key module has a circuit substrate, a push-button unit and a button at least and indicates panel.Push-button unit is set on the circuit substrate and has a first and a second portion, and this second portion passes button sign panel and protrudes from button and indicates on the panel.
Electrostatic discharge protective equipment comprises an insulating case and a conductive plate; insulating case is arranged between push-button unit and the circuit substrate; and coat the first of push-button unit; utilize insulation characterisitic that the static on the push-button unit and circuit substrate are isolated, destroy assembly on circuit substrate and the substrate with the path of avoiding static to pass through push-button unit.
One conductive plate is arranged on circuit substrate and button and indicates between the panel, utilizes its conductive characteristic as the shortest discharge path, because of conductive plate itself has at least one openwork part, makes second portion be passed openwork part.
When a user touches push-button unit and when producing static in the touch-controlled key module, this moment, conductive plate utilized its conductive characteristic to be able to electrostatic guide to damage or to cause misoperation to reference to ground connection to avoid system or equipment to produce.
Description of drawings
Fig. 1 has the schematic diagram of the touch-controlled key module 1 of electrostatic discharge (ESD) protection ability for the first embodiment of the present invention;
Fig. 2 has the vertical view of the touch-controlled key module 1 of electrostatic discharge (ESD) protection ability for the first embodiment of the present invention;
Fig. 3 has the end view of the touch-controlled key module 1 of electrostatic discharge (ESD) protection ability for the first embodiment of the present invention;
Fig. 4 has the LCD schematic diagram of electrostatic discharge (ESD) protection touch-controlled key module for the second embodiment of the present invention.
Embodiment
Fig. 1 is the schematic diagram with touch-controlled key module 1 of electrostatic discharge (ESD) protection ability of the present invention.As shown in Figure 1, an insulating case 30 is arranged between a push-button unit 20 and the circuit substrate 50, and coats the first 201 of push-button unit 20.One conductive plate 10 is arranged at circuit substrate 50 and a button indicates between the panel 40.Push-button unit 20 also comprises a second portion 202, and conductive plate 10 has at least one openwork part, makes push-button unit 20 not be insulated the second portion 202 that cover 30 coats, and can pass above-mentioned openwork part.
The operation principle of touch-controlled key module of the present invention is as follows.Insulating case 30 is arranged between push-button unit 20 and the circuit substrate 50, and coats the first 201 of push-button unit 20, in order to static on the push-button unit 20 and circuit substrate 50 are isolated.One conductive plate 10 is arranged at circuit substrate 50 and button indicates between the panel 40, in order to guide static to one with reference on the ground connection GND, above-mentioned conductive plate 10 has at least one openwork part, make its push-button unit 20 not be insulated cover 30 second portions that coated 202, pass openwork part and protrude from button and indicate on the panel 40.
Fig. 2 represents the vertical view of above-mentioned touch-controlled key module 1.Fig. 3 represents the end view of above-mentioned touch-controlled key module 1 along 3-3 ' direction.As shown in Figure 2, the openwork part of conductive plate 10 has an inner edge, and has a space D between above-mentioned inner edge and the push-button unit 20, and space D must be less than 1mm.As shown in Figure 3, insulating case 30 has a creepage distance S, and creepage distance S need be greater than space D, and for example creepage distance S is more than two times or two times of space D.
When a user touches push-button unit 20, may on push-button unit 20, produce a static, when generation of static electricity, insulating case 30 can be isolated static on the push-button unit and circuit substrate 50.In addition; because under the condition of space D less than 1mm of conductive plate 10 openwork part inner edges and push-button unit 20; and the creepage distance S of insulating case 30 is greater than two times of space D; make that static is able to directly be directed to one with reference on ground connection GND or the casing from conductive plate 10; with the shortest path of formation discharge, and then protection push-button unit 20 and circuit substrate 50.Various electronic product, for example: mobile phone, LCD, PDA(Personal Digital Assistant) ... etc., all can protect the touch-controlled key module, and then protect peripheral electronic building brick by above-mentioned design.
Fig. 4 represents to be equipped with according to the present invention the schematic diagram of the LCD with electrostatic discharge (ESD) protection touch-controlled key module.As shown in Figure 4, a touch-controlled key module 1 is arranged in the LCD 60.Touch-controlled key module 1 has a circuit substrate 50, includes the controlled function of LCD 60; One push-button unit 20, the control that cooperates circuit substrate 50 to carry out to LCD 60; Indicate panel 40 with a button, indicate the controlled function of LCD 60.One insulating case 30 is arranged between a push-button unit 20 and the circuit substrate 50, and coat the first 201 of push-button unit 20, in order to the static on the push-button unit 20 and circuit substrate 50 isolated, make that static is unlikely to be entered circuit substrate 50 and cause circuit substrate 50 to damage from push-button unit 20.One conductive plate 10 is arranged at circuit substrate 50 and a button indicates between the panel 40.Conductive plate 10 has at least one openwork part, and the second portion 202 that makes push-button unit 20 not be insulated cover 30 coatings can pass above-mentioned openwork part and protrude from button and indicate on the panel 40.
The openwork part of conductive plate 10 has an inner edge, and above-mentioned inner edge and push-button unit 20 between have a space D, and space D must be less than 1mm.Insulating case 30 has a creepage distance S, and creepage distance S need be greater than space D, and for example creepage distance S is more than two times or two times of space D.When a user touches above-mentioned push-button unit 20; may on push-button unit 20, produce a static; when generation of static electricity; under the condition of the creepage distance S of insulating case 30 greater than the space D of two times of conductive plate, 10 openwork part inner edges and push-button unit 20; make that static is able to directly be directed to reference on ground connection GND or the casing via conductive plate 10; and become the shortest discharge path, protect thus and prevent and damage because of the touch-controlled key module damage causes LCD 60 faults or perimeter component.
In sum, the present invention has following advantage:
The present invention utilizes an insulating case to be arranged between a circuit substrate and the push-button unit, and coats the part of push-button unit.Because of the function of insulating case can be isolated the static and the circuit substrate of push-button unit, and with a conductive plate with the electrostatic guide on the push-button unit extremely with reference on ground connection or the casing.With regard to cost, only increase an insulating case and a conductive plate, its economic benefit improves naturally, with regard to function, more can reach the effect of getting rid of static fully.
Though disclosed the present invention in conjunction with above two preferred embodiments; yet it is not in order to limit the present invention; any skilled personnel can do and change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined without departing from the spirit and scope of the present invention.
Claims (21)
1. electrostatic discharge protective equipment; in order to protect a touch-controlled key module; above-mentioned touch-controlled key module has a circuit substrate, a push-button unit and a button at least and indicates panel; above-mentioned push-button unit passes above-mentioned button sign panel and protrudes from this button and indicates on panel, and above-mentioned electrostatic discharge protective equipment comprises:
One insulating case, be arranged between above-mentioned push-button unit and the foregoing circuit substrate, and coat the part of above-mentioned push-button unit, in order to static on the above-mentioned push-button unit and foregoing circuit substrate isolates, above-mentioned push-button unit is defined as one first button part by this insulating case covered section, and above-mentioned push-button unit is not defined as one second button part by this insulating case covered section; And
One conductive plate, being arranged at foregoing circuit substrate and above-mentioned button indicates between the panel, above-mentioned conductive plate has at least one hollow-out parts, make above-mentioned second button partly pass above-mentioned hollow-out parts, when a user touches this push-button unit and produce a static in above-mentioned touch-controlled key module, this above-mentioned conductive plate is in order to derive above-mentioned static.
2. electrostatic discharge protective equipment as claimed in claim 1, wherein, above-mentioned conductive plate also couples one with reference to ground connection, and static is emitted with reference to ground connection via above-mentioned.
3. static discharge Bao Zhi device as claimed in claim 2, wherein, above-mentioned is a chassics earth with reference to ground connection.
4. electrostatic discharge protective equipment as claimed in claim 1, wherein, the hollow-out parts of above-mentioned conductive plate has an inner edge, and above-mentioned inner edge and above-mentioned push-button unit have a spacing.
5. electrostatic discharge protective equipment as claimed in claim 4, wherein, above-mentioned spacing is less than 1mm.
6. electrostatic discharge protective equipment as claimed in claim 1, wherein, above-mentioned insulating case has a creepage distance, and above-mentioned creepage distance is greater than above-mentioned spacing.
7. electrostatic discharge protective equipment as claimed in claim 6, wherein, the creepage distance of above-mentioned insulating case is at least two times of above-mentioned spacing.
8. touch-controlled key module with electrostatic discharge (ESD) protection ability comprises:
One circuit substrate;
One push-button unit;
One button indicates panel, and above-mentioned push-button unit passes above-mentioned button sign panel and protrudes from this button and indicates on panel;
One insulating case, be arranged between above-mentioned push-button unit and the foregoing circuit substrate, and coat the part of above-mentioned push-button unit, in order to static on the push-button unit and foregoing circuit substrate isolates, above-mentioned key unit is defined as one first button part by this insulating case covered section, and above-mentioned key unit is not defined as one second button part by this insulating case covered section; And
One conductive plate, being arranged at foregoing circuit substrate and above-mentioned button indicates between the panel, above-mentioned conductive plate has at least one hollow-out parts, make above-mentioned second button partly pass above-mentioned hollow-out parts setting, when a user touches this push-button unit and produce a static in above-mentioned touch-controlled key module, this above-mentioned conductive plate is in order to derive above-mentioned static.
9. key-press module as claimed in claim 8, wherein, above-mentioned conductive plate also couples one with reference to ground connection, and static is emitted with reference to ground connection via above-mentioned.
10. key-press module as claimed in claim 9, wherein, above-mentioned is a chassics earth with reference to ground connection.
11. key-press module as claimed in claim 8, wherein, the hollow-out parts of above-mentioned conductive plate has an inner edge, and above-mentioned inner edge and above-mentioned push-button unit have a spacing.
12. key-press module as claimed in claim 11, wherein, above-mentioned spacing is less than 1mm.
13. key-press module as claimed in claim 8, wherein, above-mentioned insulating case has a creepage distance, and above-mentioned creepage distance is greater than above-mentioned spacing.
14. key-press module as claimed in claim 13, wherein, the creepage distance of the above-mentioned insulating case of above-mentioned insulating case is at least two times of above-mentioned spacing.
15. an electronic installation has the touch-controlled key module of an electrostatic discharge (ESD) protection ability at least, comprising:
One main body;
One touch-controlled key module is arranged in the aforementioned body;
Wherein, above-mentioned touch-controlled key module has a circuit substrate, a push-button unit and a button at least and indicates panel, and above-mentioned push-button unit passes above-mentioned button sign panel and protrudes from this button and indicates on panel;
One insulating case, be arranged between above-mentioned push-button unit and the foregoing circuit substrate, and coat the part of above-mentioned push-button unit, in order to static on the push-button unit and foregoing circuit substrate isolates, above-mentioned key unit is defined as one first button part by this insulating case covered section, and above-mentioned key unit is not defined as one second button part by this insulating case covered section; And
One conductive plate, being arranged at foregoing circuit substrate and above-mentioned button indicates between the panel, above-mentioned conductive plate has at least one hollow-out parts, make above-mentioned second button partly pass above-mentioned hollow-out parts setting, when a user touches this push-button unit and produce a static in above-mentioned touch-controlled key module, this above-mentioned conductive plate is in order to derive above-mentioned static.
16. electronic installation as claimed in claim 15, wherein, above-mentioned conductive plate also couples one with reference to ground connection, and static is emitted with reference to ground connection via above-mentioned.
17. electronic installation as claimed in claim 16, wherein, above-mentioned is a chassics earth with reference to ground connection.
18. electronic installation as claimed in claim 15, wherein, the hollow-out parts of above-mentioned conductive plate has an inner edge, and above-mentioned inner edge and above-mentioned push-button unit have a spacing.
19. electronic installation as claimed in claim 18, wherein, above-mentioned spacing is less than 1mm.
20. electronic installation as claimed in claim 15, wherein, above-mentioned insulating case has a creepage distance, and above-mentioned creepage distance is greater than above-mentioned spacing.
21. electronic installation as claimed in claim 20, wherein, the creepage distance of above-mentioned insulating case is at least two times of above-mentioned spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03147490XA CN1302690C (en) | 2003-07-14 | 2003-07-14 | Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03147490XA CN1302690C (en) | 2003-07-14 | 2003-07-14 | Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1571619A true CN1571619A (en) | 2005-01-26 |
| CN1302690C CN1302690C (en) | 2007-02-28 |
Family
ID=34471961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03147490XA Expired - Fee Related CN1302690C (en) | 2003-07-14 | 2003-07-14 | Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302690C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923982A (en) * | 2009-05-29 | 2010-12-22 | 阿尔卑斯电气株式会社 | Multi-directional inputting device |
| CN101090596B (en) * | 2006-06-14 | 2011-11-09 | Lg电子株式会社 | Antistatic component |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221818A (en) * | 1985-07-18 | 1987-01-30 | Mitsubishi Rayon Co Ltd | Production of combined filament polyester yarn having different fineness |
| JPS62211818A (en) * | 1986-03-13 | 1987-09-17 | 松下電器産業株式会社 | Push-button device |
| SE513069C2 (en) * | 1997-03-03 | 2000-07-03 | Ericsson Telefon Ab L M | Protection against electrostatic discharge in a portable communication device |
| US6331928B1 (en) * | 1999-05-27 | 2001-12-18 | Storage Technology Corporation | ESD-protected interface panel and associated methods |
| US6493198B1 (en) * | 2000-02-22 | 2002-12-10 | Motorola, Inc. | Electrostatic discharge protection device for a high density printed circuit board |
| CN2453639Y (en) * | 2000-11-11 | 2001-10-10 | 深圳市中兴通讯股份有限公司 | Static-proof type single panel device |
| CN2556713Y (en) * | 2002-06-21 | 2003-06-18 | 英业达股份有限公司 | Key with static discharging protection |
-
2003
- 2003-07-14 CN CNB03147490XA patent/CN1302690C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090596B (en) * | 2006-06-14 | 2011-11-09 | Lg电子株式会社 | Antistatic component |
| CN101923982A (en) * | 2009-05-29 | 2010-12-22 | 阿尔卑斯电气株式会社 | Multi-directional inputting device |
| CN101923982B (en) * | 2009-05-29 | 2013-07-17 | 阿尔卑斯电气株式会社 | Multi-directional input device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1302690C (en) | 2007-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9921682B2 (en) | Touch panel having high resistance to static electricity | |
| US8659908B2 (en) | Protective circuit board cover | |
| US8232810B2 (en) | Extended proximity sensor device with electrostatic discharge protection | |
| WO2016129827A1 (en) | Touch input device and electrode sheet | |
| WO2017177625A1 (en) | Display module and display device | |
| CN109947305B (en) | Touch panel, preparation method thereof and touch display device | |
| JP2015079526A (en) | Capacitive touch panel, and reduction method of visibility of metal jumper on capacitive touch panel | |
| CN202523030U (en) | Touch panel | |
| TWI625653B (en) | Sensing device, input device and electronic device | |
| WO2007084467A2 (en) | Capacitive touch sensor with integral el backlight | |
| CN105824481A (en) | Touch sensor device | |
| WO2019168303A1 (en) | Digitizer integrated with touch sensor and display device comprising same | |
| CN103650009A (en) | Technique for intrusion detection | |
| CN112506371A (en) | Touch substrate and touch display device | |
| KR20150142130A (en) | Display device, touch screen device and touch driver for the same | |
| CN1302690C (en) | Electrostatic discharge protector and touch controlled key-press having electrostatic discharge protection capability | |
| KR20090017739A (en) | Liquid crystal display with touch sensor embedded and method thereof | |
| TW573461B (en) | Electrostatic discharge (ESD) protection device and touch key module with ESD protection and application | |
| CN1285243C (en) | Electrostatic discharge protection device of circuit board | |
| CN103885649A (en) | Touch module | |
| CN107133534A (en) | A kind of data protecting device, electronic equipment and data destruction method | |
| US20040047107A1 (en) | ESD protection circuit for touch button | |
| TWI448208B (en) | Esd protection element and electronic apparatus | |
| EP3528100B1 (en) | Touchscreen panel | |
| CN2884789Y (en) | Electrostatic preventer of inputting device |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: QISDA CORPORATION Free format text: FORMER NAME: BENQ CORP. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 000000 Taoyuan County, Taiwan, China Patentee after: Qisda Corporation Address before: 000000 Taoyuan County, Taiwan, China Patentee before: Benq Corp. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20110714 |