CN203929361U - Touch-screen leaded light device for detecting performance - Google Patents
Touch-screen leaded light device for detecting performance Download PDFInfo
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- CN203929361U CN203929361U CN201420340032.1U CN201420340032U CN203929361U CN 203929361 U CN203929361 U CN 203929361U CN 201420340032 U CN201420340032 U CN 201420340032U CN 203929361 U CN203929361 U CN 203929361U
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- 238000001514 detection method Methods 0.000 claims abstract description 38
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- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
A kind of touch-screen leaded light device for detecting performance, comprise main control unit, photometric detection unit and display unit, described main control unit is connected with display unit with described photometric detection unit respectively, and described main control unit is controlled described photometric detection unit the leaded light performance of touch-screen is detected, and control described display unit the detection signal of described photometric detection unit feedback is shown.The utility model can objectively make the light conductivity of touch-screen detect, and avoids because of the erroneous judgement of human factor to touch-screen leaded light performance.
Description
Technical field
The utility model relates to a kind of pick-up unit that touch screen performance is detected, especially a kind of pick-up unit detecting in order to the leaded light performance to touch-screen.
Background technology
Fast development along with information industries such as infotech, wireless communication techniques, people grow with each passing day to the demand of electronic product, in order to make product more aspect people operation and use, many electronic products have started to adopt touch-screen as input media, touch-screen is as a kind of brand-new man-machine communication's mode, because of its use habit that there is lively operation-interface intuitively and meet human body, in people's live and work, apply more and more extensive.
Common touch-screen generally includes contact panel and display panel, and described display panel is positioned at described contact panel inside surface and is connected with described contact panel; During work, when human finger touches described contact panel, the electric capacity that contact panel causes according to the touch of human body or the variation of electric field value, by peripheral control unit, judge the position that human finger touches, then control display panel and externally show image, the shown image of display panel is presented to user by described contact panel.
For make light that display panel sends can be evenly soft present to user, conventionally on the contact panel surface corresponding with display panel, one deck light guiding film is set; The light that display panel sends, under the effect of light guiding film, externally presents evenly soft characteristic of light.But due to differences such as light guiding film manufacture craft and materials, when light guiding film is used on touch-screen, can there is larger difference in leaded light performance; Traditional means is when detecting the leaded light performance of light guiding film, conventionally the mode that adopts human eye directly to observe judges the quality of light guiding film leaded light performance, because eye-observation exists a lot of subjectivity uncertain factors, such as detecting for a long time tester by kopiopia, or when testing staff converts, when test light guiding film leaded light performance, be easy to cause erroneous judgement, make underproof touch-screen by detecting, or cause qualified touch-screen product to occur by the phenomenon detecting, cause product yield unstable; Therefore, how to adopt technological means to detect touch-screen leaded light performance, the leaded light performance of touch-screen is objectively reflected, and then make product yield obtain rational management and control, make pendulum in touch screen technology personnel's a difficult problem.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of touch-screen leaded light device for detecting performance, and this pick-up unit can objectively make the light conductivity of touch-screen detect, and has avoided because of the erroneous judgement of human factor to touch-screen leaded light performance.
For solving the problems of the technologies described above, the utility model adopts following technical proposals: this touch-screen leaded light device for detecting performance comprises main control unit, photometric detection unit and display unit, and described main control unit is connected with display unit with described photometric detection unit respectively.
According to design concept of the present utility model, between described main control unit and display unit, be also provided with first switch that can make to realize between described main control unit and display unit both-way communication, described main control unit is connected by this first switch with display unit.
According to design concept of the present utility model, between described main control unit and described photometric detection unit, be also provided with the second switch, between described main control unit and described photometric detection unit, by this second switch, be connected.
According to design concept of the present utility model, described main control unit is single-chip microcomputer or PLC.
According to design concept of the present utility model, described photometric detection unit comprises wave filter, photodiode and operational amplifier, and described photodiode gathers light signal and filters and feed back to described main control unit by operational amplifier is converted into needed signal through wave filter.
According to design concept of the present utility model, described display unit is computing machine or electronic display.
According to design concept of the present utility model, described touch-screen leaded light device for detecting performance also comprises power interface, and described power interface place is connected with stabilized voltage supply, and described stabilized voltage supply is connected with display unit with described main control unit, photometric detection unit respectively.
Compared with prior art, the utlity model has following beneficial effect: (1) is because structure of the present utility model comprises main control unit, photometric detection unit and display unit, during work, instruction from display unit input sensed light signal, main control unit obtains after instruction, make photometric detection unit starting, to touch-screen leaded light Performance Detection, after detection completes, photometric detection unit feeds back to main control unit detected photometric parameter, after main control unit calculates relatively to institute's feedback signal, the numerical value after calculating relatively feed back to display unit and show, and then from display unit, can see intuitively that whether touch-screen leaded light performance is qualified, simple and quick, result is stable and objective, and the relative human eye detection of detection efficiency also improves greatly, (2) pick-up unit adopting due to the utility model detects the leaded light performance of touch-screen, has avoided in conventional art because of the erroneous judgement of human factor to touch-screen leaded light performance, and then has improved the yield of touch-screen.
Accompanying drawing explanation
Fig. 1 is the utility model electrical block diagram.
Embodiment
In order to make touch-screen when working, the light sending is evenly also soft, conventionally can on touch-screen, be provided with light guiding film, and this light guiding film is usually located between the contact panel and display panel of touch-screen; Like this, when work, display panel shows image, and under the effect of light guiding film, the light externally presenting will present all even soft characteristics, and in use, visual impression is better for user.But because different light guiding film leaded light performances can exist larger difference, bad light guiding film can have a strong impact on the product quality of touch-screen.
One of pick-up unit fundamental purpose of the present utility model is test touch screen leaded light performance, especially the leaded light performance of light guiding film that touch-screen adopts is tested; In order to detect touch-screen leaded light performance, pick-up unit concrete structure schematic diagram of the present utility model is referring to Fig. 1, it comprises main control unit 11, photometric detection unit 12 and display unit 13, and wherein, described main control unit 11 is connected with display unit 13 with described photometric detection unit 12 respectively; When touch-screen leaded light performance is detected, by display unit 13, input instructions to main control unit 11, main control unit 11 obtains detecting after instruction, photometric detection unit 12 is started, leaded light performance parameter to touch-screen gathers, after photometric detection unit 12 image data, relevant data parameters is fed back to main control unit 11, main control unit 11 is after calculating relatively, the numerical value after calculating relatively feed back to display unit 13 and show, and then from display unit 13, can see intuitively that whether touch-screen leaded light performance qualified.
As embodiment of the present utility model, main control unit 11 of the present utility model can be single-chip microcomputer, can be also PLC; Display unit 13 can be computing machine, can be also electronic display; And photometric detection of the present utility model unit 12 comprises wave filter, photodiode and operational amplifier, during work, photodiode gathers light signal, and after filtering by wave filter, operational amplifier is converted into needed signal parameter and feeds back to described main control unit 11.
In order to make to realize bidirectional communication function between main control unit 11 and display unit 13, the utility model also arranges the first switch 21 between main control unit 11 and display unit 13, and main control unit 11 is connected by this first switch 21 with display unit 13; At display unit 13, during to main control unit 11 transfer instruction, this first switch 21 is converted to the electric signal of display unit 13 can be for the electric signal of main control unit 11 identifications; At main control unit 11, during to display unit 13 feedback signal, the electric signal that this first switch 21 carrys out the transmission from main control unit 11 is converted to can be for the electric signal of display unit 11 identifications; The signal being undertaken by this first switch 21 is changed, and between main control unit 11 and display unit 13, realizes both-way communication.
The utility model makes the signal parameter between main control unit 11 and described photometric detection unit 12 in transmitting procedure, keep stable, between described main control unit 11 and described photometric detection unit 12, be also provided with the second switch 22, between described main control unit 11 and described photometric detection unit 12, by this second switch 22, be connected; Main control unit 11 is during to the 12 signal transmission instruction of photometric detection unit, when as higher or lower in institute's signal transmission level, it is higher or be converted to the required level value in photometric detection unit 22 compared with the signal of low level value that main control unit 11 controls that described the second switch 22 transmits this, and then for photometric detection unit 22 provides stable level value, guarantee that pick-up unit can normally work.
Pick-up unit of the present utility model also comprises power interface 3, by this power interface 3, can provide power supply to described main control unit 11, photometric detection unit 12 and display unit 13; In order to make main control unit 11, photometric detection unit 12 and display unit 13, voltage maintenance is stable in working order, at power interface, 3 places are also provided with stabilized voltage supply 4, and described power interface is connected with main control unit 11, photometric detection unit 12 and display unit 13 respectively by this stabilized voltage supply 4.Like this, when pick-up unit is worked, by power interface 3, to pick-up unit, provide energy, and under the effect of stabilized voltage supply 4, it is stable that the supply voltage providing keeps.
Claims (7)
1. a touch-screen leaded light device for detecting performance, is characterized in that, it comprises main control unit, photometric detection unit and display unit, and described main control unit is connected with display unit with described photometric detection unit respectively.
2. touch-screen leaded light device for detecting performance as claimed in claim 1, it is characterized in that, between described main control unit and display unit, be also provided with first switch that can make to realize between described main control unit and display unit both-way communication, described main control unit is connected by this first switch with display unit.
3. touch-screen leaded light device for detecting performance as claimed in claim 1 or 2, it is characterized in that, between described main control unit and described photometric detection unit, be also provided with the second switch, between described main control unit and described photometric detection unit, by this second switch, be connected.
4. touch-screen leaded light device for detecting performance as claimed in claim 3, is characterized in that, described main control unit is single-chip microcomputer or PLC.
5. touch-screen leaded light device for detecting performance as claimed in claim 4, it is characterized in that, described photometric detection unit comprises wave filter, photodiode and operational amplifier, and described photodiode gathers light signal and filters and feed back to described main control unit by operational amplifier is converted into needed signal through wave filter.
6. touch-screen leaded light device for detecting performance as claimed in claim 5, is characterized in that, described display unit is computing machine or electronic display.
7. touch-screen leaded light device for detecting performance as claimed in claim 6, it is characterized in that, described touch-screen leaded light device for detecting performance also comprises power interface, described power interface place is connected with stabilized voltage supply, and described stabilized voltage supply is connected with display unit with described main control unit, photometric detection unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340032.1U CN203929361U (en) | 2014-06-24 | 2014-06-24 | Touch-screen leaded light device for detecting performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340032.1U CN203929361U (en) | 2014-06-24 | 2014-06-24 | Touch-screen leaded light device for detecting performance |
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| Publication Number | Publication Date |
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| CN203929361U true CN203929361U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420340032.1U Expired - Lifetime CN203929361U (en) | 2014-06-24 | 2014-06-24 | Touch-screen leaded light device for detecting performance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693796A (en) * | 2020-04-30 | 2020-09-22 | 惠州市德赛西威汽车电子股份有限公司 | Touch screen durability testing method and device, terminal and storage medium |
-
2014
- 2014-06-24 CN CN201420340032.1U patent/CN203929361U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693796A (en) * | 2020-04-30 | 2020-09-22 | 惠州市德赛西威汽车电子股份有限公司 | Touch screen durability testing method and device, terminal and storage medium |
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