CN102520291A - Capacitive touch screen detection device - Google Patents
Capacitive touch screen detection device Download PDFInfo
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- CN102520291A CN102520291A CN2011104359772A CN201110435977A CN102520291A CN 102520291 A CN102520291 A CN 102520291A CN 2011104359772 A CN2011104359772 A CN 2011104359772A CN 201110435977 A CN201110435977 A CN 201110435977A CN 102520291 A CN102520291 A CN 102520291A
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- touch screen
- capacitance touch
- needle plate
- spaced lines
- pin
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Abstract
A capacitive touch screen detection device comprises a detection circuit, a controller, an upper fine-pitch lead board, a lower fine-pitch lead board, interface boards, a high-precision X-Y fine adjustment platform, a stage, an upper binocular microscope camera and a lower binocular microscope camera and display screens thereof. The stage for holding a capacitive touch screen to be detected is arranged on the high-precision X-Y fine adjustment platform, the microscope cameras are respectively arranged above and below the capacitive touch screen to be detected and connected to the display screens, fixing regulating devices of the upper fine-pitch lead board and the lower fine-pitch lead board are arranged on the stage, and the upper fine-pitch lead board and the lower fine-pitch lead board are connected with pins of the capacitive touch screen to be detected, and are connected to a detection circuit through the interface boards. The capacitive touch screen detection device is reliable in connection and long in service life since FPCs (flexible printed circuits) are replaced by fine-pitch leads.
Description
Technical field
The present invention relates to a kind of pick-up unit of capacitance touch screen.
Background technology
Along with the fast sale of iphone mobile phone, capacitive touch screen is more and more known by people.Its transmittance and sharpness are superior to resistance screen, and the operation of capacitance plate need not pressure and one touches and can operate gently.Increasing resistive touch screen manufacturer drops into energy one after another and fund will be produced the production that emphasis turns to capacitive touch screen, and manufacturer is supporting for mobile phone.Owing to adopt the difference of technology; The detection method of capacitive touch screen is different from resistive touch screen; Old checkout equipment can not use, and often can only add by the artificial visually examine and bind the piecemeal detection of chip, typically adopts FPC soft wiring bind; This makes that production efficiency is extremely low and production cost is quite high (the sizable part of tested screen after binding chip, just find be unacceptable product and scrap), capacitance plate manufacturer be badly in need of a kind of reliable, conveniently, checkout equipment efficiently.
Summary of the invention
The present invention seeks to: propose a kind of simple and reliable, economic and practical capacitance touch screen testing agency, realize the accurate location of tested screen pin, accurately test.
Technical scheme of the present invention is: the device that a kind of capacitance touch screen detects comprises testing circuit and controller, the little spaced lines needle plate in up and down and interface board, high precision XY fine adjustment stage, objective table, two cover pair microimaging heads and corresponding display screens up and down; The objective table of placing capacitance touch screen to be detected places on the high precision XY fine adjustment stage; Capacitance touch screen upper and lower to be detected is equipped with the microimaging head, the microimaging head is connected to display screen; Objective table is provided with the secured adjusted device of the little spaced lines needle plate in up and down; The little spaced lines needle plate in up and down is connected with the pin of capacitance touch screen to be detected, and little spaced lines needle plate is electrically connected to testing circuit through interface board.
Measured capacitance touch-screen of the present invention with adopt little spaced lines pin (plate) being connected of testing circuit; The alignment case that microimaging head in top is observed capacitance touch screen front pin.Whether the another set of measured capacitance touch-screen below that is positioned at is observed capacitance touch screen reverse side pin and is aimed at the line needle plate; Little spaced lines needle plate is provided with two up and down, is electrically connected with the pin up and down of measured capacitance touch-screen respectively during detection.
This device adopts high precision XY fine adjustment stage, can move accurately and conveniently at X and Y direction, so that the measured capacitance screen that is placed on this platform is accurately located.
The pattern recognition device of this device has 2 covers, and a cover is positioned at measured capacitance touch-screen top, the alignment case of observing capacitance touch screen front pin.Another set of measured capacitance touch-screen below, the alignment case of observing capacitance touch screen reverse side pin of being positioned at.And through the needle plate position of rolling off the production line in the high accuracy servo system adjusting.On roll off the production line can be through the servomotor controlled motion on vertical track after the needle plate stationkeeping, roll off the production line in the control needle plate and capacitance touch screen surfaces are introduced and are capablely electrically contacted.
The invention has the beneficial effects as follows: adopt the line pin that little spacing is installed to replace the FPC soft wiring and realize that high reliability connects, the long-life uses.Two up and down microimaging heads are observed measured capacitance simultaneously and are shielded double-edged pin, and assurance can both accurate positioning.The high precision XY directional trim objective table that employing regulates is located automatically, test automatically, and test speed is fast, and the result is short and sweet, and report is storage automatically, and the convenient for maintaining personnel are to the maintenance of fault screen; Versatility is good, and applicable to multiple capacitance plate sheet specification, the capacitance plate of test different size only need change relevant interface board and the line needle plate gets final product.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in the figure, parts of the present invention are following: working station indicator 1, testing button 2, power switch 3, directions X regulate 4, Y fine adjustment stage 5, objective table 6, go up camera 7, go up camera display screen 9, camera display screen 8, upper lines pin installing plate 10, Y direction regulate 11 down.
Objective table is provided with the secured adjusted device of little spaced lines needle plate, and little spaced lines needle plate is connected with the pin of capacitance touch screen to be detected, and little spaced lines needle plate is electrically connected to testing circuit.
Little spaced lines needle plate is the extension line pin of establishing on the insulcrete (line needle), and the line pin is corresponding with the Pin locations of capacitance touch screen to be detected.It is single metal probe that the line pin exceeds insulcrete 2mm, the needle body of surface gold-plating or other electric conductivity good metal, needle point surperficial mellow and full; Adopt little spaced lines pin connected mode, the measured capacitance touch-screen with adopt little spaced lines pin (lead of connection) being connected of testing circuit.
The start back starts testing software; First tested screen pin lain in forward in the objective table groove; The display screen that observation microimaging head connects; Regulate the differential head (handle) of directions X and Y direction, with objective table mobile platform on X and Y direction, feasible and confirm tested double-edged pin with on the pin that rolls off the production line all aim at.Press testing button; On the pin that rolls off the production line move simultaneously tested clamped; Get into the software detection state, testing result is presented on the display in real time, is divided into many lattices (the grid total quantity=pin count of tested directions X is taken advantage of the pin count of Y direction) with the method for emulating image with tested; Show detected electric capacity relative value in each lattice; Measure the relative value of coming and compare with the numerical range that presets, the lattice that exceeds presetting range is for red, and the lattice in the default value scope is shown in green.Automatically the pin that rolls off the production line on behind the EOT automatically terminates clamp position; Certified products show " Pass "; Unacceptable product shows " Ng "; The last operation personnel take out tested (screen) for use as required, and lattice possibly be that broken string or mistake connect for red lead-in wire, can do respective markers and handle with the convenient for maintaining personnel.Then can test down tested of a slice, need not to survey first microscope carrier adjustment work this moment again, directly the tested groove of putting into microscope carrier got final product.The above action of the test repetition of back gets final product.
Claims (6)
1. the device that detects of a capacitance touch screen is characterized in that comprising testing circuit and controller, the little spaced lines needle plate in up and down and interface board, high precision XY fine adjustment stage, objective table, two cover pair microimaging heads and corresponding display screens up and down; The objective table of placing capacitance touch screen to be detected places on the high precision XY fine adjustment stage; Capacitance touch screen upper and lower to be detected is equipped with the microimaging head, the microimaging head is connected to display screen; Objective table is provided with the secured adjusted device of the little spaced lines needle plate in up and down; The little spaced lines needle plate in up and down is connected with the pin of capacitance touch screen to be detected, and little spaced lines needle plate is electrically connected to testing circuit through interface board.
2. the device that capacitance touch screen according to claim 1 detects is characterized in that high precision XY fine adjustment stage is to carry the platform that objective table moves on X and Y direction.
3. the device that capacitance touch screen according to claim 1 and 2 detects, the cover about it is characterized in that in the display screen of two microimaging heads and correspondence is positioned at measured capacitance touch-screen top; The another set of measured capacitance touch-screen below that is positioned at.
4. the device that capacitance touch screen according to claim 1 and 2 detects; The structure that it is characterized in that the secured adjusted device of little spaced lines needle plate is: on the vertical track of the fixing back of little up and down spaced lines needle plate through servomotor control, roll off the production line in the control needle plate and capacitance touch screen surfaces are introduced row and are electrically contacted.
5. the device that capacitance touch screen according to claim 1 and 2 detects is characterized in that little spaced lines needle plate is the extension line pin of establishing on the insulcrete (line needle), and the line pin is corresponding with the Pin locations of capacitance touch screen to be detected.
6. the device that capacitance touch screen according to claim 1 and 2 detects, it is characterized in that the structure of little spaced lines needle plate is: the line pin exceeds insulcrete 2mm, is single metal probe, surface plating conducting metal, needle surface is mellow and full.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104359772A CN102520291A (en) | 2011-12-23 | 2011-12-23 | Capacitive touch screen detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104359772A CN102520291A (en) | 2011-12-23 | 2011-12-23 | Capacitive touch screen detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102520291A true CN102520291A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104359772A Pending CN102520291A (en) | 2011-12-23 | 2011-12-23 | Capacitive touch screen detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102520291A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713206A (en) * | 2012-09-28 | 2014-04-09 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN104470253A (en) * | 2014-12-11 | 2015-03-25 | 重庆矢崎仪表有限公司 | FPC extension socket press-in detection device capable of achieving quick replacement and FPC extension socket press-in detection method |
| CN105988041A (en) * | 2015-02-13 | 2016-10-05 | 宏达国际电子股份有限公司 | Capacitance measuring system and capacitance measuring method |
| CN106841996A (en) * | 2017-03-09 | 2017-06-13 | 厦门弘信电子科技股份有限公司 | The LCM FCT testers of FPC |
| CN106900169A (en) * | 2017-01-06 | 2017-06-27 | 广东小天才科技有限公司 | The detection method of display screen testing equipment and display screen |
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| JP2000028686A (en) * | 1998-03-19 | 2000-01-28 | Hewlett Packard Co <Hp> | Fixture for guide probe testing |
| CN101982783A (en) * | 2010-10-20 | 2011-03-02 | 天津市中环高科技有限公司 | Process for testing capacitance type touch screen |
| CN201878430U (en) * | 2010-12-13 | 2011-06-22 | 苏州键烁电子科技有限公司 | Flexible printed circuit board (FPCB) aligning jig for touch screen |
| CN201955420U (en) * | 2011-01-21 | 2011-08-31 | 汕头超声显示器（二厂）有限公司 | Short circuit tester for capacitance touch screen |
| CN202421372U (en) * | 2011-12-23 | 2012-09-05 | 南京熊猫电子股份有限公司 | Detecting device of capacitance touch screen |
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2011
- 2011-12-23 CN CN2011104359772A patent/CN102520291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028686A (en) * | 1998-03-19 | 2000-01-28 | Hewlett Packard Co <Hp> | Fixture for guide probe testing |
| CN101982783A (en) * | 2010-10-20 | 2011-03-02 | 天津市中环高科技有限公司 | Process for testing capacitance type touch screen |
| CN201878430U (en) * | 2010-12-13 | 2011-06-22 | 苏州键烁电子科技有限公司 | Flexible printed circuit board (FPCB) aligning jig for touch screen |
| CN201955420U (en) * | 2011-01-21 | 2011-08-31 | 汕头超声显示器（二厂）有限公司 | Short circuit tester for capacitance touch screen |
| CN202421372U (en) * | 2011-12-23 | 2012-09-05 | 南京熊猫电子股份有限公司 | Detecting device of capacitance touch screen |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713206A (en) * | 2012-09-28 | 2014-04-09 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN103713206B (en) * | 2012-09-28 | 2016-03-23 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN104470253A (en) * | 2014-12-11 | 2015-03-25 | 重庆矢崎仪表有限公司 | FPC extension socket press-in detection device capable of achieving quick replacement and FPC extension socket press-in detection method |
| CN105988041A (en) * | 2015-02-13 | 2016-10-05 | 宏达国际电子股份有限公司 | Capacitance measuring system and capacitance measuring method |
| CN106900169A (en) * | 2017-01-06 | 2017-06-27 | 广东小天才科技有限公司 | The detection method of display screen testing equipment and display screen |
| CN106841996A (en) * | 2017-03-09 | 2017-06-13 | 厦门弘信电子科技股份有限公司 | The LCM FCT testers of FPC |
| CN106841996B (en) * | 2017-03-09 | 2023-07-25 | 厦门弘信电子科技集团股份有限公司 | LCM-FCT tester for flexible circuit board |
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Application publication date: 20120627 |