CN202256514U - Capacitive touch screen test system - Google Patents
Capacitive touch screen test system Download PDFInfo
- Publication number
- CN202256514U CN202256514U CN2011202863055U CN201120286305U CN202256514U CN 202256514 U CN202256514 U CN 202256514U CN 2011202863055 U CN2011202863055 U CN 2011202863055U CN 201120286305 U CN201120286305 U CN 201120286305U CN 202256514 U CN202256514 U CN 202256514U
- Authority
- CN
- China
- Prior art keywords
- touch screen
- interface
- display unit
- touch
- 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.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model provides a capacitive touch screen test system, including touch-sensitive screen drive module, singlechip, display element control module and the display element who connects gradually, capacitive touch screen that awaits measuring can be connected to touch-sensitive screen drive module. The utility model provides a capacitive touch screen test system, can produce an interrupt signal after the capacitive touch screen that awaits measuring is touched, transmit the singlechip through touch-sensitive screen drive module, the singlechip receives behind the interrupt signal, begin to read the touch data information that produces in the touch-sensitive screen drive module and carry out analysis and judgement processing, then extract useful touch data information and transmit the display element through display element control module and show, whether the action of tester and touch on capacitive touch screen is unanimous according to the result that shows judges the capacitive touch screen that awaits measuring good or bad, whole test process does not need the intervention of PC, thereby it is lower to have the cost, and easy operation, easily use and maintain nimble characteristics on the production line.
Description
Technical field
The utility model belongs to the touch-screen field, relates in particular to a kind of capacitance touch screen test macro.
Background technology
Nowadays, the application of touch-screen is quite extensive, as a kind of input equipment; It has characteristics such as directly perceived, easy and simple to handle, portable, that shelf life is long, thereby widely applies in all trades and professions, especially in consumer electronics sector; For example on mobile phone, the panel computer, be seen everywhere.At present, most widely used touch-screen is resistive touch screen and capacitive touch screen; Wherein, with respect to resistive touch screen, capacitive touch screen has a lot of special advantages; Fast etc. such as response speed; Only need point contact screen during use and get final product, and need not to push, also can carry out multiple point touching simultaneously; Just because of capacitive touch screen has so many advantages, increasing at present being applied on the electronic product.
And for the test of capacitive touch screen, the method for testing of each producer is not quite similar at present, and test platform is also inconsistent, and what have tests in computer end; What have tests in the non-computer client; Such as FPGA (Field-Programmable Gate Array, i.e. field programmable gate array) platform etc., though test platform is different; But as final test purpose; All be in order product to be carried out validation test, to guarantee yield, improving the quality of product.
To computer platform (PC) test of present use, it has reliability height, the comprehensive advantage of test approaches; But, if carry out large batch of production test, will make that testing cost is too high, the unit clamp and the special software that need use IC supplier to provide are simultaneously tested, and therefore operation is very loaded down with trivial details, is unfavorable for that the employee on the production line uses.
Summary of the invention
The purpose of the utility model is that solution available technology adopting computer platform testing cost is too high, the technical matters of complex operation; Thereby a kind of capacitance touch screen test macro is provided, have cost lower, simple to operate, be easy to operation and maintenance flexible characteristic on production line.
The purpose of the utility model realizes through following technical scheme:
A kind of capacitance touch screen test macro comprises the touch-screen driver module, single-chip microcomputer, display unit control module and the display unit that connect successively, and said touch-screen driver module can connect the testing capacitance touch-screen.
The capacitance touch screen test macro that the utility model provides;, the testing capacitance touch-screen can produce a look-at-me after being touched; Be transferred to single-chip microcomputer through the touch-screen driver module; After single-chip microcomputer receives look-at-me, begin to read the touch data information that produces in the touch-screen driver module and resolve and judgment processing, extract useful touch data information then and be transferred to display unit and show through the display unit control module; The information real-time of input is reacted on the display unit, and the tester is according to result displayed and the action that on capacitance touch screen, the touches consistent quality of judging the testing capacitance touch-screen whether.The test macro that the utility model provides is together integrated with touch-screen driver module, single-chip microcomputer, display unit control module and display unit; Whole test process does not need the intervention of PC; Form the complete testing scheme of a cover, thus have cost lower, simple to operate, be easy to operation and maintenance flexible characteristic on production line.
Description of drawings
Fig. 1 is the principle schematic of the capacitance touch screen test macro that provides of the utility model.
Fig. 2 is the system construction drawing of touch-screen driver module in the capacitance touch screen test macro that provides of the utility model.
Fig. 3 is the principle schematic of touch screen interface among Fig. 2.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please refer to shown in Figure 1ly, a kind of capacitance touch screen test macro comprises successively the touch-screen driver module 11, single-chip microcomputer 12, display unit control module 13 and the display unit 14 that connect, and said touch-screen driver module 11 can connect the testing capacitance touch-screen.
The capacitance touch screen test macro that the utility model provides;, the testing capacitance touch-screen can produce a look-at-me after being touched; Be transferred to single-chip microcomputer through the touch-screen driver module; After single-chip microcomputer receives look-at-me, begin to read the touch data information that produces in the touch-screen driver module and resolve and judgment processing, extract useful touch data information then and be transferred to display unit and show through the display unit control module; The information real-time of input is reacted on the display unit, and the tester is according to result displayed and the action that on capacitance touch screen, the touches consistent quality of judging the testing capacitance touch-screen whether.The test macro that the utility model provides is together integrated with touch-screen driver module, single-chip microcomputer, display unit control module and display unit; Whole test process does not need the intervention of PC; Form the complete testing scheme of a cover, thus have cost lower, simple to operate, be easy to operation and maintenance flexible characteristic on production line.
Please refer to shown in Figure 2; As concrete embodiment; Said touch-screen driver module 11 comprises touch screen interface 111, analysis and processing unit 112 and the external interface 113 that connects successively, and said touch screen interface 111 is connected with the testing capacitance touch-screen, and external interface 113 is connected with single-chip microcomputer 12.Wherein, Said touch-screen driver module 11 can detect the look-at-me that the testing capacitance touch-screen generates; Can also the touch data information of testing capacitance touch-screen be read simultaneously, after handling through analysis and processing unit 112, transfer in the single-chip microcomputer 12 through external interface 113.
Please refer to Fig. 3 institute method; As concrete embodiment; For reading of the detection that realizes look-at-me and touch data information, said touch screen interface 111 comprises reset line interface TP_RESET, clock signal line interface TP_SCL, data line interface TP_SDA and look-at-me line interface TP_INTR.Wherein, Said reset line interface is used for being connected with the reset terminal of testing capacitance touch-screen; Realize resetting and initialization of touch-screen; The data that are used to said interface clock signal read provides clock, and said data line interface is used to receive the touch data information that touch-screen generates, and said interrupt signal interface is used to receive the look-at-me that touch-screen generates.As a kind of specific embodiment, said look-at-me is a string square wave, is transferred on the interrupt interface of single-chip microcomputer 12 through external interface 113, and other signaling interface is connected on the I/O mouth of single-chip microcomputer in the touch-screen driver module 11.
As concrete embodiment, said touch-screen driver module 11 is the FT5306 drive IC, its inner integrated MCU kernel of one 8; Can support multiple point touching; The highlyest support 8.9 " touch-screen, frequency acquisition surpasses 100 hertz, in build the Flash of 32KB; the MCU of the Data Memory of 6KB also has aggressive mode, monitoring mode and three kinds of mode of operations of sleep pattern simultaneously.Certainly, those skilled in the art can also select other suitable drive IC for use according to aforementioned description to touch-screen driver module 11 character, and its concrete drive IC is not limited to chip FT5306.
As concrete embodiment; Said single-chip microcomputer is the C8051F126 chip; This chip is as the main control chip of whole test system; Be fully-integrated mixed signal SOC(system on a chip) type MCU chip, have 64 digital I/O pins (100 pin TQFP encapsulation) or 32 digital I/O pins (64 pin TQFP encapsulation).The clock frequency of this chip internal reaches as high as 100 megahertzes, adopts the instruction pipeline structure, and the execution time of 70% instruction is one or two system clock cycle, and the processing power than 8051 improves more than the one magnitude.During work; Single-chip microcomputer receives after the look-at-me, the touch data information in the beginning collection touch driver module 11, and touch data wherein all is to transmit with the form of a packet; Receive after the touch data, single-chip microcomputer begins touch data is resolved and judgment processing.If data are incorrect, it is abandoned; If data are correct, then extract useful data message, the quantity of the coordinate figure of touch point, touch point for example, and comprise contact, lift and continue touch condition that contacts three kinds of touch action etc.Particularly; The process that said single-chip microcomputer is resolved with judgment processing touch data is: touch data is resolved contrast; If having exceeded touch-screen, the quantity of the touch point that receives to receive what scopes that point touches simultaneously at most; For example touch-screen can only receive 5 points at most and touches simultaneously, thinks that then this packet is invalid, should give up; Equally, if the coordinate figure of touch point has exceeded the scope of touch-screen screen resolution, also should be invalid data and handle.At last, through resolving and judgment processing, obtained useful data message, and can it be kept in the internal storage of single-chip microcomputer.
As concrete embodiment, said display unit control module 13 is RGB protocol chip SSD1963, on testing host, controls the demonstration of display unit with this chip.Wherein, this chip contains the 1215K byte buffer, supports the image of 864 * 480 * 24bit to show simultaneously.Certainly, those skilled in the art can also can carry out the selection of the display unit control module of other model according to actual needs.
As concrete embodiment, said display unit is the TFT-LCD display unit, specifically can adopt 3.8 " TFT-LCD; resolution is 480 * 800; adopt rgb interface and main control chip C8051F126 to communicate, the data line width is 24bit, and color depth has reached 16,000,000.Adopt described TFT-LCD display unit, be used for the useful data information after single-chip microcomputer parsing and the judgment processing is shown, supply the tester to observe comparison.Particularly; Said TFT-LCD display unit comprises the display unit driver module; And have the Serial Peripheral Interface (SPI) that is used for initialization display unit driver module and transmit the rgb interface that data are given the display unit driver module; Said Serial Peripheral Interface (SPI) is connected with single-chip microcomputer, is used for controlling the inner display unit driver module of TFT-LCD, and to its initialization; Said rgb interface is used to connect display unit control module and display unit driver module, is used for transmitting data among the GRAM of display unit driver module, to realize the demonstration control to display unit.
As embodiment preferably, said Serial Peripheral Interface (SPI) comprises input signal line interface SDI, output signal line interface SDO and clock signal line interface SCL; Said input signal line interface is used for to display unit driver module input data, and said output signal line interface is used for the data of reading displayed unit drives module, and said clock signal line interface is used to provide clock signal.Said rgb interface comprises line scan signals line interface HSYNC, column scan signal line interface VSYNC, enable signal line interface ENABLE, clock signal line interface DOTCLK and data line interface, and wherein data line interface can have a lot of bars; Said line scan signals line interface is used to provide a capable commencing signal; Said column scan signal line interface is used to provide a row commencing signal; Said enable signal line interface is used to provide enable signal and flag data to begin transmission; Said clock signal line interface is used to provide clock signal, and said data line interface is used to transmit data.
Below, with the course of work of introducing the capacitance touch test macro that the utility model proposes:
1), power-up initializing:
Whole test system powers on, and touch-screen driver module, display unit control module and display unit driver module are carried out initialization.
2), detect the state of capacitance touch screen, wait for finger touch:
Single-chip microcomputer detects the state of capacitance touch screen, waits for finger touch, till the input of touch is arranged.
3), single-point line test:
The tester clicks capacitance touch screen with a finger, on screen, moves then, and will on the track of finger process mark a line on the TFT-LCD display unit this moment.
4), test is dwindled in the multiple spot amplification:
The tester is with two finger touch capacitance touch screens; The TFT-LCD display unit can be that diagonal line marks a rectangle frame with two finger locas; Distance between two fingers increases or reduces then, and corresponding rectangle frame also can and then amplify or reduce, thereby reaches the purpose of multiple spot identification.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a capacitance touch screen test macro is characterized in that, comprises the touch-screen driver module, single-chip microcomputer, display unit control module and the display unit that connect successively, and said touch-screen driver module can connect the testing capacitance touch-screen.
2. capacitance touch screen test macro according to claim 1; It is characterized in that; Said touch-screen driver module comprises touch screen interface, analysis and processing unit and the external interface that connects successively, and said touch screen interface is connected with the testing capacitance touch-screen, and external interface is connected with single-chip microcomputer.
3. capacitance touch screen test macro according to claim 2 is characterized in that, said touch screen interface comprises reset line interface, clock signal line interface, data line interface and look-at-me line interface.
4. capacitance touch screen test macro according to claim 2 is characterized in that, said touch-screen driver module is the FT5306 drive IC.
5. capacitance touch screen test macro according to claim 1 is characterized in that, said single-chip microcomputer is the C8051F126 chip.
6. capacitance touch screen test macro according to claim 1 is characterized in that, said display unit control module is RGB protocol chip SSD1963.
7. capacitance touch screen test macro according to claim 1 is characterized in that, said display unit is the TFT-LCD display unit.
8. capacitance touch screen test macro according to claim 7; It is characterized in that; Said TFT-LCD display unit comprises the display unit driver module; And have the Serial Peripheral Interface (SPI) and the rgb interface of transmission data that is used for initialization display unit driver module to the display unit driver module, and said Serial Peripheral Interface (SPI) is connected with single-chip microcomputer, and rgb interface is used to connect display unit control module and display unit driver module.
9. capacitance touch screen test macro according to claim 8 is characterized in that, said Serial Peripheral Interface (SPI) comprises input signal line interface, output signal line interface and clock signal line interface.
10. capacitance touch screen test macro according to claim 8 is characterized in that, said rgb interface comprises line scan signals line interface, column scan signal line interface, enable signal line interface, clock signal line interface and data line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202863055U CN202256514U (en) | 2011-08-09 | 2011-08-09 | Capacitive touch screen test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202863055U CN202256514U (en) | 2011-08-09 | 2011-08-09 | Capacitive touch screen test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256514U true CN202256514U (en) | 2012-05-30 |
Family
ID=46117733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202863055U Expired - Lifetime CN202256514U (en) | 2011-08-09 | 2011-08-09 | Capacitive touch screen test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256514U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945648A (en) * | 2012-11-26 | 2013-02-27 | 京东方科技集团股份有限公司 | Test device and test method for display apparatus |
| CN103245864A (en) * | 2013-05-10 | 2013-08-14 | 苏州欧菲光科技有限公司 | Touch screen testing system and method |
| CN106680635A (en) * | 2017-01-03 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch screen test system and touch screen test method |
| CN107192921A (en) * | 2017-07-17 | 2017-09-22 | 南京华睿川电子科技有限公司 | A kind of test circuit, test board and the method for testing of button capacitance plate |
| CN107621579A (en) * | 2017-09-05 | 2018-01-23 | 华显光电技术（惠州）有限公司 | The touch-control adjustment method of touch screen |
| CN115130503A (en) * | 2022-06-21 | 2022-09-30 | 浙江大学 | A touch screen vulnerability analysis and protection method and system |
-
2011
- 2011-08-09 CN CN2011202863055U patent/CN202256514U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945648A (en) * | 2012-11-26 | 2013-02-27 | 京东方科技集团股份有限公司 | Test device and test method for display apparatus |
| CN102945648B (en) * | 2012-11-26 | 2015-03-25 | 京东方科技集团股份有限公司 | Test device and test method for display apparatus |
| CN103245864A (en) * | 2013-05-10 | 2013-08-14 | 苏州欧菲光科技有限公司 | Touch screen testing system and method |
| CN106680635A (en) * | 2017-01-03 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch screen test system and touch screen test method |
| CN107192921A (en) * | 2017-07-17 | 2017-09-22 | 南京华睿川电子科技有限公司 | A kind of test circuit, test board and the method for testing of button capacitance plate |
| CN107192921B (en) * | 2017-07-17 | 2023-10-17 | 南京华睿川电子科技有限公司 | Testing circuit, testing board and testing method of button type capacitive screen |
| CN107621579A (en) * | 2017-09-05 | 2018-01-23 | 华显光电技术（惠州）有限公司 | The touch-control adjustment method of touch screen |
| CN115130503A (en) * | 2022-06-21 | 2022-09-30 | 浙江大学 | A touch screen vulnerability analysis and protection method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202256514U (en) | Capacitive touch screen test system | |
| US9542030B2 (en) | Display device with integrated touch screen having varied touch driving time and method of driving the same | |
| US9189097B2 (en) | Display device with integrated in-cell touch screen and method of driving the same | |
| CN103424914B (en) | Liquid crystal display device and driving method thereof | |
| CN105549766B (en) | Input system and method for detecting touch using the same | |
| CN103390391B (en) | The method of liquid crystal indicator and driving liquid crystal indicator | |
| CN101458590A (en) | Touch sensing display device and driving method thereof | |
| CN104423695B (en) | Display device and its driving method | |
| TWI514218B (en) | Display device with integrated touch screen and method of driving the same | |
| CN102135837A (en) | Display panel and operation method thereof | |
| CN101261553A (en) | Display device and method for driving the display device | |
| US8330741B1 (en) | Multi-touch decoder for digital resistive screen overlay | |
| US20110084918A1 (en) | Touch Detection Method and Touch Detection Device and Touch Display Device | |
| CN107533393A (en) | Integrated self-capacitance touch display | |
| US10754471B2 (en) | Touch sensing device and image display device using the same | |
| KR20140060991A (en) | Touch sensing system and method of controlling power consumption | |
| CN103793099A (en) | Touch sensing system and method of reducing latency thereof | |
| CN103176075A (en) | Touch panel testing method and testing software thereof | |
| KR101808339B1 (en) | Touch screen, and driving method thereof, and display device including the touch screen | |
| CN102184132A (en) | Method and system for testing video processing chip | |
| CN201583942U (en) | Device for online writing EDID by USB | |
| CN104199339A (en) | Portable first-line bus temperature monitoring instrument and achievement method thereof | |
| CN104090833A (en) | Server and signal analysis device thereof | |
| KR102628940B1 (en) | Touch circuit, touch display device and method for driving the touch display device | |
| KR101773971B1 (en) | Touch sensing device and method for transmitting data therefrom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BYD ELECTRONIC COMPONENT MAIL COMPANY Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150828 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150828 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD electronic products mail Co. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: BYD Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen helitai photoelectric Co.,Ltd. Address before: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee before: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd. |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Patentee|Address Correct: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd.|518119 Laboratory Building of BYD Company, No. 1 Yan'an Road, Kuiyong Town, Dapeng New District, Shenzhen City, Guangdong Province False: Shenzhen BYD electronic products mail Co.|518119 Laboratory Building of BYD Company, No. 1 Yan'an Road, Kuiyong Town, Dapeng New District, Shenzhen City, Guangdong Province Number: 37 Volume: 31 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |