CN101982783A - Process for testing capacitance type touch screen - Google Patents
Process for testing capacitance type touch screen Download PDFInfo
- Publication number
- CN101982783A CN101982783A CN 201010512743 CN201010512743A CN101982783A CN 101982783 A CN101982783 A CN 101982783A CN 201010512743 CN201010512743 CN 201010512743 CN 201010512743 A CN201010512743 A CN 201010512743A CN 101982783 A CN101982783 A CN 101982783A
- Authority
- CN
- China
- Prior art keywords
- touch
- test
- touch screen
- thin metal
- screen
- 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
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates a capacitance type touch screen testing process by simulating a human hand to touch a touch screen of a mobile phone by multiple points. The process adopts the method of simulating the human hand to touch the touch screen of the mobile phone by multiple points, and multipoint simulated human hand touch action is completed by a special touch screen tester, so that points to be tested cover the effective range of the whole screen. Before testing, a thin metal plate cap of a pneumatic touch head is in a non-stressed state, the thin metal plate cap maintains a normal-state shape, at the moment, the pneumatic touch head and a detected point of the touch screen are in clearance contact; when testing, an air pipe is connected with an air source, under the action of air pressure, the thin metal plate cap is elastically deformed to protrude downwards, the conductive rubber on the surface of the thin metal plate cap simulates fingers of the human hand to press the detected point of the touch screen; when the air source is cut by the air pipe, the thin metal plate cap is recovered to the normal-state shape; and a test chip circuit is connected with a capacitor of the detected point of the touch screen, and a singlechip determines the touch position by measuring capacitor changes and acquires capacitor changing information.
Description
Technical field
The present invention relates to the testing electrical property technology of touch-screen, particularly a kind of anthropomorphic hand of multi-point mould of taking touches handset touch panel situation, the capacitive touch screen test technology of testing.
Background technology
At present, the handset touch panel method of testing has four kinds usually: 1. and 2 simulation tests, 2. adopt the circuit board and chip test, 3. installation test, 4. product line property testing.
Method one adopts the method for 2 simulation tests, and its test position can not cover whole touch scope, just carries out simulation test to crucial 2, can not carry out complete detection to the pattern and the silver-colored line of all ITO films;
Method two adopts the method for circuit board and chip test, is that research and development test products parameter consistency is carried out statistical study, does not directly provide the non-defective unit defective products and judges, judges non-defective unit and defective products according to statistic analysis result, is not suitable for producing in batches;
Method three is to adopt the installation test, and the method more complicated, advantage are to test more intuitively, and the test effect is better, shortcoming be the installation test if any defective products, the machine of need tearing open changes part, increases man-hour, influences manufacturing schedule;
Method four adopts the test of product line property testing instrument more directly perceived, and the test effect is better, but test speed is slower, and bulk article needs all tests, takes the testing efficiency of the method lower.
The situation of comprehensive above-mentioned various handset touch panel test technologies, the testing electrical property technology of existing touch-screen is improved and innovated is very necessary.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, purpose of the present invention is exactly, design a kind of testing touch screen technology that adopts the anthropomorphic hand of multi-point mould to touch handset touch panel, for realizing that this technology develops special-purpose tester, the handset touch panel test process is reached: simple, convenient and suitable batch process.
The objective of the invention is to realize by such technical scheme, a kind of capacitive touch screen test technology, it is characterized in that: the anthropomorphic hand of described process using multi-point mould touches the method for handset touch panel, realize the anthropomorphic hand touch action of multi-point mould by special-purpose testing touch screen instrument, make test point cover the effective range of whole touch screen; Described testing touch screen instrument comprises by monolithic processor controlled test chip circuit, instrument casing, pneumatic touch head, tracheae, the touch headstock, touches a floating holder and testing touch screen interface board; The test chip circuit places in the instrument casing, and the test chip circuit connects the built-in touch screen interface of testing touch screen interface board by terminal interface and winding displacement; Pneumatic touch head is made of metal tube and thin metal dish cap, on the screw thread of metal tube bottom, screw in thin metal dish cap, thin metal dish cap surface is pasted one deck conductive rubber, metal tube upper end grafting tracheae, the tracheae other end connects air pump, tested touch-screen is positioned on the testing touch screen interface board, before the test, make the whole measured point of a pneumatic touch gap contact touch-screen, during test, when tracheae connects source of the gas, under the effect of air pressure, make and adopt the thin metal dish cap distortion of Thin Elastic metal material to protrude the conductive rubber anthropomorphic dummy finger presses touch-screen measured point of thin metal dish cap surface; Control the break-make of tracheae source of the gas by test chip circuit control electric air pump switch; The test process of the technology of described capacitive touch screen test comprises the steps:
Before step 1, the test, the thin metal dish cap of pneumatic touch head is in the not state of pressurized, and thin metal dish cap keeps the normality shape, and this moment, pneumatic touch head contacted with gap, touch-screen measured point;
When step 2, test, tracheae connects source of the gas, and under the effect of air pressure, thin metal dish cap elastic deformation is protruded downwards, the conductive rubber anthropomorphic dummy finger presses touch-screen measured point of thin metal dish cap surface;
The test chip circuit connects the electric capacity of tested testing touch screen point, and single-chip microcomputer is determined touch location by the variation of measuring electric capacity, and obtains capacitance variation information.
The beneficial effect that the present invention produces is: test position covers whole touch scope, research and development test products parameter consistency is carried out statistical study, can directly provide the non-defective unit defective products judges, judge non-defective unit and defective products according to statistic analysis result, take the high suitable batch production of testing efficiency of the method; Accurate testing degree and work efficiency have been improved.
Description of drawings
Fig. 1 is a testing touch screen instrument synoptic diagram of the present invention;
Fig. 2 is a pneumatic touch synoptic diagram;
Fig. 3 is a tested product simulated touch point synoptic diagram.
Embodiment
As shown in Figure 1 to Figure 3, touch-screen is surveyed instrument and is comprised by monolithic processor controlled test chip circuit, instrument casing 6, pneumatic touch 1, tracheae 2, touches the headstock 3, touches a floating holder 4 and testing touch screen interface board 5;
Also be provided with liquid crystal display terminal 7 and tolerance on the instrument casing 6 and adjust knob 8; The test chip circuit places in the tool housing 6, connects the built-in touch screen interface of testing touch screen anchor clamps by test circuit terminal interface plate 5 and winding displacement and is connected with product so that product is tested;
It is copper that thin metal dish cap 12 adopts the Thin Elastic metal material.
The present invention be directed to the electrical property detection that capacitive touch screen carries out.According to driver chip correlation technique parameter, design and produce special testing instrument, the every technical feature of capacitive touch screen is detected.
The establishment corresponding testing program makes test operation simple, convenient, operator is opened corresponding test procedure on computers, computer and tester are communicated with the back operator and put into product to be tested on request in tools, press testing button, tester just can be tested automatically, and providing result of determination according to test data, computer carries out record to test data simultaneously.Operator can reach test purpose according to result of determination with the placement of classifying of non-defective unit, defective products.Record in the computer can be convenient to that the engineering staff effectively follows the trail of and bad analysis.
Auto test flow:
[test 1] power test: power input short circuit, open test
[test 2] connects test: the test board check of communicating by letter with the touch-screen module
[test 3] module version test: module hardware and software version checking
[test 4] passage short-circuit test: FPCB flexible-cable and chip short-circuit testing
[test 5] susceptibility test: the susceptibility check of whole passages and coordinate output and FPCB, chip, ITO pattern, the check of silver-colored circuit open circuit when the simulated touch input is arranged
[test 6] testing current: the check of module electric current (dynamically/static state)
For example: when the tested product test parameter reached every test request, the tester viewing area can show " Pass ", is judged to be non-defective unit; One of test parameter or multinomial when not reaching test request, the tester viewing area can show " Fail ", is judged to be defective products.Operator can be deposited test back product classification, and non-defective unit changes operation down, and defective products is given the engineering staff.The engineering staff carries out bad analysis according to test record and defective products.Test and bad analytical work efficient have been improved.Lime light: in product is tested, can not mobile product, in order to avoid test is inaccurate, or cause the problem of testing tool fault and personal security aspect.Must wait product test to finish, provide that the test result rear is desirable to go out product.
Claims (4)
1. the technology of capacitive touch screen test, it is characterized in that: the anthropomorphic hand of described process using multi-point mould touches the method for handset touch panel, realize the anthropomorphic hand touch action of multi-point mould by special-purpose testing touch screen instrument, make test point cover the effective range of whole touch screen; Described testing touch screen instrument comprises by monolithic processor controlled test chip circuit, instrument casing (6), pneumatic touch head (1), tracheae (2), touches the headstock (3), touches a floating holder (4) and testing touch screen interface board (5); The test chip circuit places in the instrument casing (6), and the test chip circuit connects the built-in touch screen interface of testing touch screen interface board (5) by terminal interface and winding displacement; Pneumatic touch head (1) is made of metal tube (11) and thin metal dish cap (12), on the screw thread of metal tube (11) bottom, screw in thin metal dish cap (12), one deck conductive rubber (14) is pasted on thin metal dish cap (12) surface, metal tube (11) upper end grafting tracheae (2), tracheae (2) other end connects air pump, tested touch-screen is positioned on the testing touch screen interface board (5), before the test, make the whole measured point of pneumatic touch head (1) gap contact touch-screen, during test, when tracheae (2) connects source of the gas, under the effect of air pressure, thin metal dish cap (12) distortion of adopting the Thin Elastic metal material is protruded, conductive rubber (14) anthropomorphic dummy's finger presses touch-screen measured point on thin metal dish cap (12) surface; Control the break-make of tracheae (2) source of the gas by test chip circuit control electric air pump switch; The test process of described capacitive touch screen test technology comprises the steps:
Before step 1, the test, the thin metal dish cap (12) of pneumatic touch head (1) is in the not state of pressurized, and thin metal dish cap (12) keeps the normality shape, and this moment, pneumatic touch head contacted with gap, touch-screen measured point;
When step 2, test, tracheae (2) connects source of the gas, and under the effect of air pressure, thin metal dish cap (12) elastic deformation is protruded downwards, conductive rubber (14) anthropomorphic dummy's finger presses touch-screen measured point on thin metal dish cap (12) surface;
Step 3, when tracheae (2) cuts off source of the gas, thin metal dish cap (12) reverts to the normality shape;
The test chip circuit connects the electric capacity of tested testing touch screen point, and single-chip microcomputer is determined touch location by the variation of measuring electric capacity, and obtains capacitance variation information.
2. the technology of capacitive touch screen test according to claim 1, it is characterized in that: on the screw thread of metal tube (11) bottom of described pneumatic touch head (1), screw in thin metal dish cap (12), metal tube (11) end top processing air pipe interface (13), tracheae (2) is plugged on the air pipe interface (13), air pipe interface (13) diameter and tracheae (2) internal diameter wringing fit.
3. the technology of capacitive touch screen test as claimed in claim 1 or 2, it is characterized in that: described instrument casing (6) is for touching the supporting mass of the headstock (3), end portion by 12 pneumatic touch heads (1) metal tubes (11) passes 12 holes that touch on the headstock (3), be installed on the touch floating holder (4), constitute pneumatic touch head combination; Thin metal dish cap (12) one ends of each pneumatic touch head (1) are positioned at and touch the dull and stereotyped bottom of a floating holder (4), touch on dull and stereotyped four jiaos of the headstock (3) sleeve pipe (9) respectively is housed, touch and respectively to be equipped with one on (4) four jiaos of the floating holders guide pillar (10) is housed, be slidingly matched by sleeve pipe (9) and guide pillar (10), the touch headstock (3) is slidingly connected and touches a floating holder (4); The guide pillar (10) that touches a floating holder (4) can be along sleeve pipe (9) straight line lifting; Sleeve pipe (9) side installs jackscrew additional can make a touch floating holder (4) location.
4. the technology of capacitive touch screen test as claimed in claim 1 or 2, it is characterized in that: it is copper that thin metal dish cap (12) adopts the Thin Elastic metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010512743 CN101982783B (en) | 2010-10-20 | 2010-10-20 | Process for testing capacitance type touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010512743 CN101982783B (en) | 2010-10-20 | 2010-10-20 | Process for testing capacitance type touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101982783A true CN101982783A (en) | 2011-03-02 |
| CN101982783B CN101982783B (en) | 2012-07-04 |
Family
ID=43619685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010512743 Expired - Fee Related CN101982783B (en) | 2010-10-20 | 2010-10-20 | Process for testing capacitance type touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982783B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520291A (en) * | 2011-12-23 | 2012-06-27 | 南京熊猫电子股份有限公司 | Capacitive touch screen detection device |
| CN102654543A (en) * | 2012-05-23 | 2012-09-05 | 东莞通华液晶有限公司 | Method for testing capacitive touch screens and testing equipment thereof |
| WO2013020356A1 (en) * | 2011-08-05 | 2013-02-14 | Jiang Wei | System for identifying particular contact using capacitive touch screen |
| CN102967776A (en) * | 2011-08-31 | 2013-03-13 | 金宝电子工业股份有限公司 | Test system and method associated with capacitive sensing touch input device |
| CN103454529A (en) * | 2013-08-30 | 2013-12-18 | 北京沃华慧通测控技术有限公司 | System and method for detecting capacitive touch screen performance |
| CN103472341A (en) * | 2013-09-27 | 2013-12-25 | 无锡宇宁光电科技有限公司 | Device for detecting flexible circuit board and functional piece in capacitance screen |
| WO2014003684A1 (en) * | 2012-06-26 | 2014-01-03 | Wong Kee Chee | Terminal and method of authentication |
| CN103713206A (en) * | 2012-09-28 | 2014-04-09 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN103954860A (en) * | 2014-04-22 | 2014-07-30 | 上海大学 | Tool used for testing function and performance of touch control equipment |
| US9710105B2 (en) | 2011-01-24 | 2017-07-18 | Microsoft Technology Licensing, Llc. | Touchscreen testing |
| US9935963B2 (en) | 2011-09-09 | 2018-04-03 | Microsoft Technology Licensing, Llc | Shared item account selection |
| CN108089953A (en) * | 2016-11-21 | 2018-05-29 | 阿瓦亚公司 | User interface function is tested by the actuating of piezoelectricity grid |
| WO2018152662A1 (en) * | 2017-02-21 | 2018-08-30 | 深圳市汇顶科技股份有限公司 | Device and method for testing fingerprint sensor |
| WO2019000198A1 (en) * | 2017-06-27 | 2019-01-03 | 深圳市汇顶科技股份有限公司 | Chip testing jig and chip testing system |
| CN109521291A (en) * | 2018-10-31 | 2019-03-26 | 安徽奕辉电子科技有限公司 | A kind of detection device and method of capacitive touch screen |
| CN110488124A (en) * | 2019-08-24 | 2019-11-22 | 深圳市欧雷玛科技有限公司 | A kind of capacitive touch screen multipoint detection device and its detection method |
| CN111273121A (en) * | 2020-03-07 | 2020-06-12 | 东莞市和康轩电子科技有限公司 | Touch function product detection device and detection method |
| CN112229738A (en) * | 2020-10-12 | 2021-01-15 | 广西益顺盈智能科技集团有限公司 | Device for detecting pressure bearing capacity of mobile phone display screen and using method thereof |
| CN115480110A (en) * | 2021-06-16 | 2022-12-16 | 北京沃华慧通测控技术有限公司 | Electrostatic discharge testing device and testing method |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8725443B2 (en) | 2011-01-24 | 2014-05-13 | Microsoft Corporation | Latency measurement |
| US9542092B2 (en) | 2011-02-12 | 2017-01-10 | Microsoft Technology Licensing, Llc | Prediction-based touch contact tracking |
| US8982061B2 (en) | 2011-02-12 | 2015-03-17 | Microsoft Technology Licensing, Llc | Angular contact geometry |
| US8773377B2 (en) | 2011-03-04 | 2014-07-08 | Microsoft Corporation | Multi-pass touch contact tracking |
| US8913019B2 (en) | 2011-07-14 | 2014-12-16 | Microsoft Corporation | Multi-finger detection and component resolution |
| US9785281B2 (en) | 2011-11-09 | 2017-10-10 | Microsoft Technology Licensing, Llc. | Acoustic touch sensitive testing |
| US8914254B2 (en) | 2012-01-31 | 2014-12-16 | Microsoft Corporation | Latency measurement |
| US9317147B2 (en) | 2012-10-24 | 2016-04-19 | Microsoft Technology Licensing, Llc. | Input testing tool |
| CN102998619B (en) * | 2012-11-28 | 2015-07-15 | 深圳和而泰智能控制股份有限公司 | Method, device and system for testing sensing buttons |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162248A (en) * | 2007-06-22 | 2008-04-16 | 上海优立通信技术有限公司 | Press keys and touch screen testing device |
| CN101221479A (en) * | 2007-01-09 | 2008-07-16 | 义隆电子股份有限公司 | Detection compensating method of condenser type touch panel with key structure |
| CN101452360A (en) * | 2007-11-30 | 2009-06-10 | 禾瑞亚科技股份有限公司 | Sensing device for capacitance touch control screen |
| US20090167725A1 (en) * | 2007-12-26 | 2009-07-02 | Elan Microelectronics Corp. | Method for calibrating coordinates of touch screen |
| US20090195518A1 (en) * | 2007-10-01 | 2009-08-06 | Igt | Method and apparatus for detecting lift off on a touchscreen |
-
2010
- 2010-10-20 CN CN 201010512743 patent/CN101982783B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221479A (en) * | 2007-01-09 | 2008-07-16 | 义隆电子股份有限公司 | Detection compensating method of condenser type touch panel with key structure |
| CN101162248A (en) * | 2007-06-22 | 2008-04-16 | 上海优立通信技术有限公司 | Press keys and touch screen testing device |
| US20090195518A1 (en) * | 2007-10-01 | 2009-08-06 | Igt | Method and apparatus for detecting lift off on a touchscreen |
| CN101452360A (en) * | 2007-11-30 | 2009-06-10 | 禾瑞亚科技股份有限公司 | Sensing device for capacitance touch control screen |
| US20090167725A1 (en) * | 2007-12-26 | 2009-07-02 | Elan Microelectronics Corp. | Method for calibrating coordinates of touch screen |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9710105B2 (en) | 2011-01-24 | 2017-07-18 | Microsoft Technology Licensing, Llc. | Touchscreen testing |
| WO2013020356A1 (en) * | 2011-08-05 | 2013-02-14 | Jiang Wei | System for identifying particular contact using capacitive touch screen |
| CN102967776A (en) * | 2011-08-31 | 2013-03-13 | 金宝电子工业股份有限公司 | Test system and method associated with capacitive sensing touch input device |
| US9935963B2 (en) | 2011-09-09 | 2018-04-03 | Microsoft Technology Licensing, Llc | Shared item account selection |
| CN102520291A (en) * | 2011-12-23 | 2012-06-27 | 南京熊猫电子股份有限公司 | Capacitive touch screen detection device |
| CN102654543A (en) * | 2012-05-23 | 2012-09-05 | 东莞通华液晶有限公司 | Method for testing capacitive touch screens and testing equipment thereof |
| WO2014003684A1 (en) * | 2012-06-26 | 2014-01-03 | Wong Kee Chee | Terminal and method of authentication |
| 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 |
| CN103454529A (en) * | 2013-08-30 | 2013-12-18 | 北京沃华慧通测控技术有限公司 | System and method for detecting capacitive touch screen performance |
| CN103472341A (en) * | 2013-09-27 | 2013-12-25 | 无锡宇宁光电科技有限公司 | Device for detecting flexible circuit board and functional piece in capacitance screen |
| CN103954860B (en) * | 2014-04-22 | 2017-10-27 | 上海大学 | A kind of testing tool for touch control device function and performance |
| CN103954860A (en) * | 2014-04-22 | 2014-07-30 | 上海大学 | Tool used for testing function and performance of touch control equipment |
| CN108089953A (en) * | 2016-11-21 | 2018-05-29 | 阿瓦亚公司 | User interface function is tested by the actuating of piezoelectricity grid |
| US11029661B2 (en) | 2016-11-21 | 2021-06-08 | Avaya Inc. | Remote user interface actuation using a piezoelectric grid |
| CN108089953B (en) * | 2016-11-21 | 2022-01-25 | 阿瓦亚公司 | Testing user interface functionality through actuation of piezoelectric meshes |
| WO2018152662A1 (en) * | 2017-02-21 | 2018-08-30 | 深圳市汇顶科技股份有限公司 | Device and method for testing fingerprint sensor |
| WO2019000198A1 (en) * | 2017-06-27 | 2019-01-03 | 深圳市汇顶科技股份有限公司 | Chip testing jig and chip testing system |
| CN109521291A (en) * | 2018-10-31 | 2019-03-26 | 安徽奕辉电子科技有限公司 | A kind of detection device and method of capacitive touch screen |
| CN110488124A (en) * | 2019-08-24 | 2019-11-22 | 深圳市欧雷玛科技有限公司 | A kind of capacitive touch screen multipoint detection device and its detection method |
| CN111273121A (en) * | 2020-03-07 | 2020-06-12 | 东莞市和康轩电子科技有限公司 | Touch function product detection device and detection method |
| CN112229738A (en) * | 2020-10-12 | 2021-01-15 | 广西益顺盈智能科技集团有限公司 | Device for detecting pressure bearing capacity of mobile phone display screen and using method thereof |
| CN115480110A (en) * | 2021-06-16 | 2022-12-16 | 北京沃华慧通测控技术有限公司 | Electrostatic discharge testing device and testing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101982783B (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101982783B (en) | Process for testing capacitance type touch screen | |
| KR101065014B1 (en) | Apparatus and method for testing touch screen panel | |
| US8278571B2 (en) | Capacitive touchscreen or touchpad for finger and active stylus | |
| CN201903594U (en) | Capacitive touch screen test device | |
| CN204903679U (en) | Fingerprint module accredited testing organization | |
| CN101145122A (en) | Touch panel test machine platform | |
| CN104777417A (en) | Modular PCB testing jig | |
| CN109643176A (en) | Stylus, touch-sensing system, touch-sensing controller and touch-sensing method | |
| CN103941109A (en) | A test device of a touch panel | |
| CN206224411U (en) | Touch-screen and display screen integrated test system based on On Cell | |
| CN107561739A (en) | A kind of touch-screen and display screen integrated test system based on On Cell | |
| CN203396775U (en) | Colloidal gold immunoassay analyzer | |
| CN201548468U (en) | Touch screen click scratch testing machine | |
| CN208459453U (en) | A kind of detection device of active capacitance pen | |
| CN103699282A (en) | Touch display device | |
| CN201662791U (en) | Touch panel testing equipment | |
| CN106354312A (en) | On-Cell based touch screen and display screen integration testing system | |
| CN103675489A (en) | Test system and test method applied to touch control device | |
| CN202330607U (en) | Two-side intuitive function test device for small piece indium tin oxide (ITO) glass | |
| CN204374318U (en) | A kind of touch screen function measurement jig | |
| CN111736733A (en) | Detection device and detection method for embedded touch display product | |
| CN110940908A (en) | Multi-connection testing method for PCB (printed circuit board) of small electric appliance and special equipment | |
| CN203561704U (en) | Detector for large touch screen | |
| CN211785856U (en) | Three-station testing machine for touch screen module | |
| CN105093098B (en) | Test system of membrane switch circuit |
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 |
Granted publication date: 20120704 Termination date: 20151020 |
|
| EXPY | Termination of patent right or utility model |