CN103149044A - Device for mechanical performance test of flexible device - Google Patents
Device for mechanical performance test of flexible device Download PDFInfo
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- CN103149044A CN103149044A CN2013100560831A CN201310056083A CN103149044A CN 103149044 A CN103149044 A CN 103149044A CN 2013100560831 A CN2013100560831 A CN 2013100560831A CN 201310056083 A CN201310056083 A CN 201310056083A CN 103149044 A CN103149044 A CN 103149044A
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- mechanical performance
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Abstract
The invention discloses a device for mechanical performance test of a flexible organic light-emitting diode (FOLED), a flexible solar cell (FOPV), a flexible field effect transistor (FTFT) and other flexible devices. The device comprises a fixed bottom plate; a control circuit part is fixedly arranged at one side of the fixed bottom plate, and a mechanism part is arranged at the other side of the fixed bottom plate; the mechanism part comprises a power device, a transmission device, a linear displacement device and two clamping parts; the power device, the transmission device and the linear displacement device are in transmission connection with one another in sequence; the two clamping parts respectively are a static clamping head fixedly connected with the fixed bottom plate and a movable clamping head fixedly connected with the linear displacement device; and the control circuit part is connected with the power device. The device has the advantages that in the process of simulating a hand curved substrate, an electrode can not be damaged, the performance is stable, the test of the organic flexible devices is facilitated, the cost is low, and the manufacture is easy.
Description
Technical field
The present invention is used for flexible device, as the test of flexible Organic Light Emitting Diode (FOLED), flexible solar battery (FOPV) and flexible field effect transistor (FTFT), flexible Organic Electricity storage mechanical propertys such as (FOTM), also can be used for the crooked test of other flexible substrates.
Background technology
OLED is commonly called as Organic Light Emitting Diode (Organic Light-Emitting Diode), is called again ORGANIC ELECTROLUMINESCENCE DISPLAYS (Organic Electroluminesence Display, OELD).Because possess frivolous, the visual angular width of power saving, can realize the characteristics such as flexible, therefore be widely applied, and progressively enter into the stage of practical application.And its most noticeable be exactly the flexible FOLED of demonstration, it is a significant advantage not possessing of all displays in the market.FOLED is at the PET(Polyethylene of flexibility terephthalate) or the flexible substrates such as ultra-thin glass, PI (polyimide) on the OLED that makes, usually need 120 ℃ of flexible substrates high temperature resistant (〉), pliability is strong, flex life is long.Common laboratory uses its surface sputtering that the PET of tin indium oxide (ITO) transparency electrode is arranged, and is etched into the hearth electrode shape that needs, and subsequently by the vacuum evaporation various organic material interlayers of grow, evaporation top electrode at last is as Ag.Also very popular to the research of FOLED in recent years, but compare with at the bottom of glass or silicon wafer-based, the profile pattern of at first most of flexible material is unsatisfactory; Secondly flexible substrates is relatively relatively poor to the barrier property of water oxygen; Originally the experience impact of environment temperature of flexible material is also very large again; The mechanical property that wherein the most important thing is to make after device is very desirable, can not bend for a long time.These technological difficulties make the development of FOLED relatively lag behind.Wherein mechanical property comprises the flex life of material itself, the more important thing is the damage that repeatedly bends rear electrode itself and and flexible substrates between loose contact appears.Be mainly manifested in when the bending number of times microfracture that electrode surface can occur increasing gradually when (＜100 times) less the time, will cause current density to increase; Along with the bending increased frequency, microfracture quantity no longer changes, but the degree of depth of microfracture and width will increase, and will cause current density to reduce.
In addition, flexible organic assembly of other class of getting up of developed recently such as FOPV and FTFT, FOTM etc. also have the same problems such as measuring mechanical property.
so the research to mechanical property is a focus of FOLED experiment always, and we just make of staff or some simple armstrong's patent equipment the test of flexible device usually, make like this test result have a lot of human factors, such as: the grease on staff, the spots such as sweat are easily polluted device, also easily damage which floor and the electrode of having of thin-film device, can not guarantee even bending, can not guarantee that each bending angle (being curvature) is identical, and general number of bends is all several thousand times up to ten thousand times left and right, so such test is a long felt need for full automatic equipment and completes.
Summary of the invention
The objective of the invention is to make a kind of device that can autostable test flexible device, this device can be realized the test to device mechanical propertys such as FOLED, FOPV and FTFT.
A kind of flexible device mechanical performance tester, comprise fixed base plate, a side at described fixed base plate is provided with the control circuit part, opposite side is provided with mechanical part, described mechanical part comprises propulsion system, gearing, linear displacement device and two clamping parts, described propulsion system, gearing and linear displacement device are in transmission connection successively, and described two clamping parts are comprised of the moving chuck that is fixedly connected on the quiet chuck on fixed base plate and be fixedly connected on linear displacement device; Described control circuit part is connected with described propulsion system.
Described propulsion system are stepper motor, and described stepper motor is fixed on described fixed base plate by fixed mount.
Described gearing is leading screw, one end of described leading screw is connected with described stepper motor, one side of parallel leading screw arranges described linear displacement device, described linear displacement device comprises the first slide bar and is arranged on the slide bar stiff end at described the first slide bar two ends, slidably connect slide unit on described the first slide bar, be fixedly connected with a lateral strut between the thread groove of described slide unit and described leading screw.
Described quiet chuck and moving chuck consist of by two flat mouth clips, bearing, threeway parts and support bar, be embedded with described bearing on described flat mouth clip, be embedded with the threeway parts in bearing, the threeway component bottom ends is connected with described support bar, described quiet chuck is fixedly connected on described fixed base plate by described support bar, and described moving chuck is fixedly connected on slide unit by described support bar.
Described stepper motor is the five line stepper motors of 5V-12V.
Also comprise stop means, described stop means is arranged on a side of described linear displacement device.
Described stop means comprises the second slide bar and slide bar stiff end, and described the second slide bar and slide bar stiff end are arranged in parallel in described slide unit opposite side, dismountablely on described the second slide bar is connected with two travel switches.
Further, described stop means is infrared light controlled switch.
Described slide unit, firm banking all adopt Polyvinylchloride (PVC) or high-quality mahogany material to make.
Beneficial effect:
The first, with the flexible OLED of same angle of bend automatic uniform speed bending, and can count number of bends.
The second, at an easy rate angle of bend is regulated in the position of adjustment stroke switch.
Three, the process of artificial hand's bent substrate, and can lesion electrode.
Four, restart after, can maintain the rate of bending before last the shutdown.
Five, stable performance, convenient organic flexible device test, with low cost, be easy to make.
Description of drawings
Fig. 1 is the structural representation of clamping part;
Fig. 2 is flexible substrate clamping schematic diagram;
Fig. 3 is the mechanical part vertical view;
Fig. 4 is slide unit and leading screw contact structures partial enlarged drawing;
Fig. 5 is that the structure of apparatus of the present invention is always schemed;
Wherein 1, clamping part; 2, axle; 3, bearing; 4, threeway rod member; 5, flexible substrate; 6, slide unit; 7, leading screw; 8, two travel switches; 9, the second slide bar; 10, the first slide bar; 11, the lateral strut on slide unit; 12, control circuit part; 13, fixed base plate; 14, stepper motor; 15, the first clamping part; 16, the second clamping part; 17, aluminium alloy fixed mount; S1, rotating speed add switch; S2, rotating speed subtract switch; S3, travel switch.
Embodiment
As shown in Figure 1, at common plastics flat mouth folder from the about through hole that diameter is 2 mm of 5 mm place brills of axle, insert the metal shaft of long 20 mm of a diameter 2 mm in through hole, the metal shaft that a diameter is 2 long 20 mm of mm is inserted a plastic three-way rod member 4, and internal diameter 2mm bearing is packed in the through hole of threeway rod member.
As shown in Figure 2, the fixed part of flexible substrate, on the stiff end that is contained on fixed base plate of clip after two repackings are completed, another is contained in can automatic back-and-forth on the slide unit 6 of motion.
Flexible test Whole Equipment effect of the present invention as shown in Figure 5, the mechanical part materials such as slide unit 6, fixed base plate 13 adopt the materials such as Polyvinylchloride (PVC), high-quality mahogany to make, these material prices are cheap, be easy to cutting processing, not yielding.Leading screw, the first slide bar 10, the second slide bar 9, motor fixing frame 17 are metal material.Equipment set is cheap, is easy to processing, and stepper motor adopts 5V ~ 12 V four decelerating step motor of five lines mutually, and reduction gear ratio is 1/16, and the chip that control circuit partly uses has STC 11F04E, ULN2003APG;
As shown in Figure 4, the control circuit part, electronic circuit part do as one likes can form in the reliable carbarn gate circuit modification of quite stable, and two buttons are arranged on circuit board, and a rotating speed adds S1, and a rotating speed subtracts S2.After each adjusting rotary speed, autostore rotary speed parameter in several seconds, start next time is still by the adjusting rotary speed running of last time; Drive current: 0-0.5 °.The rotating function: two travel switch S3 in parallel are arranged on plate, and every touch-control once can be realized counter-rotating, so just can realize automatic rotating function; Printed circuit board (PCB) (PCB) size is about: 4.5*3.5 CM.
As shown in Figure 3, switch S 3 places two travel switches in parallel to the second slide bar, will be touched travel switch in slide unit 6 motion processes, switch S 3 of every touch-control will realize the stepper motor rotating.Stepper motor 14 is connected with leading screw 7 by the axle connected device, 7 of leading screws drive slide unit 6 motions by lateral strut 11, so just realized the to-and-fro movement of slide unit 6 by switch S 3, controlled the size of slide unit 6 in order to can touch two travel switches that are placed on the second slide bar 9 in its motion process.By above method, after the flexible devices such as FOLED, the OPV of the 20 mm * 20mm that pack into, FOTM, in the slide unit motion process clip can be under the toughness of flexible device itself automatic rotating, so just simulate substrate bending process, be arranged on respectively the automatic bending that two clips on slide unit 6 and stiff end just can be realized flexible device.
Consider that in addition this equipment is used for the test of other flexible devices or the bending curvature of adjusting flexible device, therefore travel switch is designed to the structure of adjustable position, unscrew screw, be adjusted to the position that needs and tighten.
The rotating speed that also is designed with the adjusting stepper motor speed on circuit adds switch switch S 1, rotating speed subtracts switch S 2, coordinate and form the setting that switch is completed amount of bow and rate of bending, because the stepper motor rotating speed is quite fixing, so for long-time test, as long as writing down the beginning and ending time, we just can be easy to calculate its bending number of times, so substantially can satisfy the test of flexible device.Because circuit has the rotating speed memory function, do not cause crooked speed inconsistence problems so can not cause because change device midway when the polylith flexible device being done the flex capability analysis.
The motor that adopts in the present embodiment is the 5V-12V four five brushless stepper motors of line (reduction gear ratio is 1/16) mutually, and leading screw is to be transformed a little by the leading screw in the CD-ROM drive of desktop computer to form, and has saved largely cost of manufacture.
This equipment also has stronger extendability, such as can at the switch of switch S 3 a places counter in parallel, writing down exactly number of bends like this; The fixed part of flexible substrate can be replaced to other parts in addition, realize having evenly the back and forth robotization of process and control.If do not consider can change travel switch into infrared light controlled switch in the situation of cost, this will make test more accurately also can be avoided mechanical wear to switch.
Claims (9)
1. flexible device mechanical performance tester, it is characterized in that, comprise fixed base plate, a side at described fixed base plate is provided with the control circuit part, opposite side is provided with mechanical part, described mechanical part comprises propulsion system, gearing, linear displacement device and two clamping parts, described propulsion system, gearing and linear displacement device are in transmission connection successively, and described two clamping parts are comprised of the moving chuck that is fixedly connected on the quiet chuck on fixed base plate and be fixedly connected on linear displacement device; Described control circuit part is connected with described propulsion system.
2. a kind of flexible device mechanical performance tester according to claim 1, is characterized in that, described propulsion system are stepper motor, and described stepper motor is fixed on described fixed base plate by fixed mount.
3. a kind of flexible device mechanical performance tester according to claim 2, it is characterized in that, described gearing is leading screw, one end of described leading screw is connected with described stepper motor, one side of parallel leading screw arranges described linear displacement device, described linear displacement device comprises the first slide bar and is arranged on the slide bar stiff end at described the first slide bar two ends, slidably connects slide unit on described the first slide bar, is fixedly connected with a lateral strut between the thread groove of described slide unit and described leading screw.
4. a kind of flexible device mechanical performance tester according to claim 1, it is characterized in that, described quiet chuck and moving chuck consist of by two flat mouth clips, bearing, threeway parts and support bar, be embedded with described bearing on described flat mouth clip, be embedded with the threeway parts in bearing, the threeway component bottom ends is connected with described support bar, and described quiet chuck is fixedly connected on described fixed base plate by described support bar, and described moving chuck is fixedly connected on slide unit by described support bar.
5. a kind of flexible device mechanical performance tester according to claim 2, is characterized in that, described stepper motor is the five line stepper motors of 5V-12V.
6. a kind of flexible device mechanical performance tester according to claim 1, is characterized in that, also comprises stop means, and described stop means is arranged on a side of described linear displacement device.
7. a kind of flexible device mechanical performance tester according to claim 6, it is characterized in that, described stop means comprises the second slide bar and slide bar stiff end, described the second slide bar and slide bar stiff end are arranged in parallel in described slide unit opposite side, dismountablely on described the second slide bar are connected with two travel switches.
8. a kind of flexible device mechanical performance tester according to claim 6, is characterized in that, described stop means is infrared light controlled switch.
9. according to claim 1 ~ 8 described a kind of flexible device mechanical performance testers, is characterized in that, described slide unit, firm banking all adopt Polyvinylchloride (PVC) or high-quality mahogany material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310056083.1A CN103149044B (en) | 2013-02-22 | 2013-02-22 | A kind of device for mechanical performance test of flexible device |
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| CN201310056083.1A CN103149044B (en) | 2013-02-22 | 2013-02-22 | A kind of device for mechanical performance test of flexible device |
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| CN103149044A true CN103149044A (en) | 2013-06-12 |
| CN103149044B CN103149044B (en) | 2015-12-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104406520A (en) * | 2014-11-26 | 2015-03-11 | 昆山国显光电有限公司 | Flexible part detecting device and method |
| CN104458229A (en) * | 2014-11-28 | 2015-03-25 | 资阳南车电气有限公司 | Swing testing machine and swing testing method |
| WO2015090206A1 (en) * | 2013-12-18 | 2015-06-25 | 昆山工研院新型平板显示技术中心有限公司 | Bending test method and system for flexible screen |
| CN105445128A (en) * | 2015-12-16 | 2016-03-30 | 三棵树涂料股份有限公司 | Device and detection method for quickly detecting elasticity of paint film |
| TWI563247B (en) * | 2013-12-18 | 2016-12-21 | ||
| CN107454229A (en) * | 2017-09-14 | 2017-12-08 | 武汉华星光电半导体显示技术有限公司 | Flexible display screen servicing unit and folding mobile terminal |
| CN111211063A (en) * | 2020-01-13 | 2020-05-29 | 安徽工业大学 | Experimental device for testing photoelectric characteristics of flexible solar cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104458229A (en) * | 2014-11-28 | 2015-03-25 | 资阳南车电气有限公司 | Swing testing machine and swing testing method |
| CN104458229B (en) * | 2014-11-28 | 2017-08-25 | 资阳中车电气科技有限公司 | A kind of swing testing machine and rolling test method |
| CN105445128A (en) * | 2015-12-16 | 2016-03-30 | 三棵树涂料股份有限公司 | Device and detection method for quickly detecting elasticity of paint film |
| CN107454229A (en) * | 2017-09-14 | 2017-12-08 | 武汉华星光电半导体显示技术有限公司 | Flexible display screen servicing unit and folding mobile terminal |
| CN107454229B (en) * | 2017-09-14 | 2019-11-26 | 武汉华星光电半导体显示技术有限公司 | Flexible display screen auxiliary device and folding mobile terminal |
| CN111211063A (en) * | 2020-01-13 | 2020-05-29 | 安徽工业大学 | Experimental device for testing photoelectric characteristics of flexible solar cell |
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Application publication date: 20130612 Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000215 Denomination of invention: Device for mechanical performance test of flexible device Granted publication date: 20151223 License type: Common License Record date: 20161118 |
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