WO2015090206A1 - 柔性屏幕弯曲测试方法和系统 - Google Patents

柔性屏幕弯曲测试方法和系统 Download PDF

Info

Publication number
WO2015090206A1
WO2015090206A1 PCT/CN2014/094111 CN2014094111W WO2015090206A1 WO 2015090206 A1 WO2015090206 A1 WO 2015090206A1 CN 2014094111 W CN2014094111 W CN 2014094111W WO 2015090206 A1 WO2015090206 A1 WO 2015090206A1
Authority
WO
WIPO (PCT)
Prior art keywords
flexible screen
pressing
mechanical
bending
bending test
Prior art date
Application number
PCT/CN2014/094111
Other languages
English (en)
French (fr)
Inventor
高胜
柳冬冬
黄秀颀
Original Assignee
昆山工研院新型平板显示技术中心有限公司
昆山国显光电有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 昆山工研院新型平板显示技术中心有限公司, 昆山国显光电有限公司 filed Critical 昆山工研院新型平板显示技术中心有限公司
Priority to US15/105,981 priority Critical patent/US10197482B2/en
Priority to KR1020187023784A priority patent/KR101997760B1/ko
Priority to EP14872266.3A priority patent/EP3086105B1/en
Priority to JP2016541302A priority patent/JP6300936B2/ja
Priority to KR1020167019015A priority patent/KR20160099654A/ko
Publication of WO2015090206A1 publication Critical patent/WO2015090206A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/70—Testing, e.g. accelerated lifetime tests
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/861—Repairing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • G01N33/0078—
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of testing technology for flexible devices, and more particularly to a flexible screen bending test method and system.
  • the flexible display is a flexible display material that is deformable and bendable.
  • the flexible display is as thin as paper, and even if the power is cut off, the content does not disappear, and it is also called "electronic paper.”
  • Flexible displays are widely used in portable electronic devices due to their extremely thin, low power, and deformable features. Since the flexural performance of the flexible display of the flexible display directly affects the quality of the flexible display, it is necessary to evaluate the bending characteristics of the flexible screen.
  • the conventional flexible screen bending test method and device utilizes a drum type bending device to mechanically bend a flexible screen. Specifically, the flexible screen is transported by using a plurality of rollers of the same or different curvature to bend the flexible screen, and then the flexible screen is subjected to mechanical reliability testing. If a flexible screen is used to transport the flexible screen, the corresponding component is required to press the flexible screen to bend the flexible screen; if the flexible screen is transmitted by using multiple rollers, it is necessary to design a traction device to pull the flexible screen so that the flexible screen can be normally used in multiple Transfer between rollers.
  • the use of a roller to transport and bend a flexible screen has the disadvantages of complicated operation and high test cost.
  • a flexible screen bending test method comprising the steps of: connecting a flexible screen to a mounting device; performing a mechanical squeezing test on the flexible screen to bend the flexible screen, the squeezing point of the mechanical squeezing test deviating from a connection point of the flexible screen and the mounting device; and performing bending performance detection on the flexible screen.
  • the flexible screen is a polygonal flexible screen, and the flexible screen is connected Connecting to the mounting device includes: connecting opposite ends of the flexible screen to the mounting device;
  • Performing a mechanical squeezing test on the flexible screen includes pressing the flexible screen gradually by the squeezing device and gradually increasing the degree of bending of the flexible screen.
  • the mechanical squeezing test of the flexible screen includes squeezing the flexible screen at a preset frequency and a predetermined force within a set time.
  • the preset frequency and the preset strength are both plural, and the mechanical squeezing test on the flexible screen includes: at a preset frequency, at least one preset force Press the flexible screen.
  • mechanically testing the flexible screen includes mechanically squeezing a plurality of set squeezing points of the flexible screen.
  • mechanically testing the flexible screen comprises mechanically squeezing the flexible screen with a predetermined plurality of extruded areas.
  • performing bending performance detection on the flexible screen includes the following steps:
  • performing bending performance detection on the flexible screen includes the following steps:
  • the optical reliability and/or electrical reliability of the flexible screen is detected upon mechanical compression testing of the flexible screen, or after mechanically testing the flexible screen.
  • a flexible screen bending test system comprising:
  • a squeezing device for performing a mechanical squeezing test on the flexible screen to bend the flexible screen, the squeezing point of the mechanical squeezing test being offset from a connection point of the flexible screen and the mounting device;
  • a detecting device is configured to perform bending performance detection on the flexible screen.
  • the mounting device connects opposite ends of the flexible screen, the pressing device gradually approaches the flexible screen, presses the flexible screen and gradually increases the degree of bending of the flexible screen.
  • the mounting device includes a mounting bracket and a mounting assembly, the mounting assembly being disposed on the mounting bracket for relatively securing the flexible screen.
  • the mounting assembly is made of an elastic material and is Deformable stretch when squeezed.
  • the pressing device includes a pressing member and a driver
  • the pressing member includes a connecting rod and an extrusion head connecting the connecting rod;
  • the driver is fixed to the fixing bracket and passes
  • the connecting rod is connected to the extrusion head for driving the extrusion head to perform a mechanical extrusion test on the flexible screen.
  • the mounting device further includes an adjustment device disposed on the fixed bracket and movable relative to the fixed bracket, the driver being coupled to the fixed bracket by the adjustment device.
  • the surface of the extrusion head is a smooth transition surface.
  • the connecting rod is threadedly coupled to the extrusion head.
  • the flexible screen bending test method and system described above connect the flexible screen to the mounting device, perform mechanical extrusion testing on the flexible screen, and bend the flexible screen.
  • the pressing point of the mechanical pressing test deviates from the connection point of the flexible screen and the mounting device. Bending performance testing of flexible screens.
  • the mechanical environment is used to simulate the flexible screen environment, and the bending performance of the flexible screen is tested. Compared with the conventional flexible screen bending test method and device, the operation is simple and the test cost is low.
  • FIG. 1 is a flow chart of a flexible screen bending test method in an embodiment
  • FIG. 2 is a schematic structural view of a flexible screen bending test system before performing a mechanical extrusion test in an embodiment
  • FIG. 3 is a schematic view showing the structure of a flexible screen bending test system when performing a mechanical extrusion test in an embodiment.
  • a flexible screen bending test method as shown in FIG. 1, includes the following steps:
  • Step S110 connecting the flexible screen to the mounting device.
  • the mounting device may be a relatively fixed flexible screen, and the relative fixing means that when the flexible screen is squeezed, the mounting device can be deformed so that the flexible screen can be bent normally.
  • the mounting device is relatively fixed to the flexible screen, and when the mechanical compression test is performed on the flexible screen, the excessive force may be avoided to break the flexible screen.
  • the mounting device may also be a rigid fixed flexible screen, and the rigid fixing means that the mounting device does not deform. If the mounting device rigidly fixes the flexible screen, it is necessary to control the pressing force when performing the mechanical extrusion test.
  • step S110 may specifically include connecting opposite ends of the flexible screen to the mounting device.
  • the flexible screen may specifically be a quadrangle, a pentagon or the like, and the opposite ends of the flexible screen are fixedly connected with the mounting device, and the fixing effect of the flexible screen can also be ensured when the flexible screen is mechanically pressed and tested. It can be understood that if the adjacent ends of the flexible screen are connected to the mounting device, the other at least one end must also be connected to the mounting device to ensure the fixing effect. That is, in the embodiment, the number of connection points between the mounting device and the flexible screen is reduced under the premise of ensuring the fixing effect of the flexible screen, the structure of the mounting device is simplified, and the testing cost is reduced.
  • the two connection points of the flexible screen and the mounting device are located on the axis of symmetry of the flexible screen.
  • the two connection points can be respectively at the midpoints of opposite sides of the flexible screen.
  • the two connection points can be respectively in the side of the flexible screen. Point and a fixed point opposite the side.
  • connection point is located on the axis of symmetry of the flexible screen, when mechanically squeezing the flexible screen It is ensured that the pulling force generated by the two connecting points of the mounting device is the same when the flexible screen is bent, and the pulling force of one of the connecting points of the mounting device is prevented from being excessively large, so that the flexible screen is detached and the test stability is improved.
  • Step S120 performing a mechanical extrusion test on the flexible screen to bend the flexible screen.
  • the pinch point of the mechanical extrusion test deviates from the connection point of the flexible screen and the mounting device, that is, the pinch point is not at the same point as the connection point.
  • the flexible screen is mechanically squeezed to bend the flexible screen to simulate the actual use environment of the flexible screen. Specifically, the flexible screen can be pressed after gradually approaching the flexible screen by the pressing device and gradually increase the degree of bending of the flexible screen.
  • the flexible screen is symmetrical in shape with the two attachment points of the flexible screen and the mounting device on the axis of symmetry of the flexible screen. Furthermore, the squeezing point of the mechanical squeezing test is located on the line connecting the two connection points, since the connection line of the two connection points is the symmetry axis of the flexible screen, and the connection point of the squeezing point is not at the two connection points. Compared with the above, the mechanical compression test of the flexible screen can also obtain better extrusion effect by using a smaller pressing force, thereby further reducing the testing cost.
  • the mechanical compression test is performed on the flexible screen, and the flexible screen is pressed at a preset frequency and a preset intensity within a set time, and the preset frequency may be 30 times/minute, and the preset strength may be It is 50 cows, and the preset frequency and preset strength corresponding to the flexible screen 300 of different sizes and structures can be adjusted as needed.
  • the flexible screen is mechanically pressed a plurality of times during the set time, which is more in line with the actual use environment of the flexible screen, and improves the test accuracy.
  • the controller can be used to control the motor to drive the pressing device to squeeze the flexible screen according to the preset frequency and the preset intensity.
  • the preset frequency is the extrusion frequency of the extrusion device.
  • the preset force is the extrusion force of the extrusion device.
  • the preset frequency, preset strength and set time can be adjusted according to the situation.
  • the motor and the extrusion device can be connected by a telescopic rod, and the telescopic length of the telescopic rod can be changed by the motor to control the extrusion force of the extrusion device.
  • the preset frequency and the preset strength are both plural, and the mechanical squeezing test on the flexible screen includes squeezing the flexible screen with at least one preset force at a preset frequency. That is, when performing a mechanical extrusion test, the flexible screen is squeezed at different frequencies and strengths. It may be that a preset frequency corresponds to a preset strength, or all or part of the preset frequency corresponds to a plurality of preset strengths.
  • the preset frequency includes frequency A, frequency B, and frequency C.
  • the preset strength includes velocity a, velocity b, and velocity c. If all preset frequencies correspond to multiple preset strengths, then force is used at frequency A. a, strength At least two of b and velocity c squeeze the flexible screen, similar at frequency B and frequency C. Squeeze the flexible screen with different frequencies and strengths to further conform to the actual use environment of the flexible screen and improve the test accuracy.
  • the mechanical squeezing test of the flexible screen includes mechanically squeezing a plurality of set squeezing points of the flexible screen, respectively.
  • the multi-point extrusion test is performed on the flexible screen, which is more in line with the actual use environment of the flexible screen, and the test accuracy can be improved.
  • the mechanical extrusion test of the flexible screen may also be performed by mechanically squeezing the flexible screen with a plurality of preset pressing areas.
  • the extrusion area can be adjusted by changing the volume of the extrusion device, and the flexible screen can be mechanically squeezed with different extrusion areas, which is more in line with the actual use environment of the flexible screen, thereby further improving the test accuracy.
  • the mechanical squeezing test comprises first performing a multi-point squeezing of the flexible screen with a squeeze area: a plurality of squeezing points on the flexible screen, respectively at different frequencies within a set time Mechanical extrusion with force. The extrusion device is then replaced and the flexible screen is again multi-point pressed with another extruded area.
  • Step S130 Perform bending performance detection on the flexible screen.
  • step S130 may include detecting mechanical reliability of the flexible screen after performing a mechanical squeezing test on the flexible screen.
  • the mechanical reliability of the flexible screen is detected, that is, the degree of damage of the flexible screen is detected after the mechanical extrusion test.
  • the flexible screen can be scanned and detected by the scanner. After the detection result is obtained, the flexible screen can be classified according to the degree of damage, such as being divided into good products, qualified products and defective products, and the mechanical reliability level of the flexible screen is identified.
  • step S130 may further comprise detecting optical reliability and/or electrical reliability of the flexible screen upon mechanical compression testing of the flexible screen, or after mechanically testing the flexible screen.
  • the optical reliability detection and the electrical reliability detection are explained as an example.
  • the optical reliability detection uses a light source to illuminate a flexible screen to detect the transmittance of the flexible screen.
  • Electrical reliability testing is to detect the electrical parameters of the semiconductor device on the flexible screen, specifically including connecting the semiconductor device on the flexible screen using a semiconductor parameter tester, conducting electrical parameter testing, and evaluating the electrical parameters in the bend. Changes before and after the song.
  • the bending performance detection performed on the flexible screen in step S130 may be one or more of detecting mechanical reliability, optical reliability, and electrical reliability of the flexible screen.
  • the flexible screen bending test method described above connects the flexible screen to the mounting device, performs mechanical extrusion testing on the flexible screen, and bends the flexible screen.
  • the pressing point of the mechanical pressing test deviates from the connection point of the flexible screen and the mounting device. Bending performance testing of flexible screens.
  • the mechanical environment is used to simulate the flexible screen's use environment, and the flexural performance of the flexible screen is tested. Compared with the traditional flexible screen bending test method, the operation is simple and the test cost is low.
  • the flexible screen bending test system includes a mounting device 100, a pressing device 200, and a detecting device (not shown).
  • the mounting device 100 is used to connect the flexible screen 300.
  • the mounting device 100 can be a relatively fixed flexible screen 300. Relatively fixed means that when the flexible screen 300 is squeezed, the mounting device 100 can be deformed so that the flexible screen 300 can be bent normally.
  • the mounting device 100 connects opposite ends of the flexible screen 300.
  • the flexible screen 300 may specifically be a quadrangle, a pentagon or the like, and the opposite ends of the flexible screen 300 are fixedly connected to the mounting device 100, and the fixing effect of the flexible screen 300 can also be ensured when the flexible screen 300 is mechanically pressed. That is, in the embodiment, the number of connection points of the mounting device 100 and the flexible screen 300 is reduced under the premise of ensuring the fixing effect of the flexible screen 300, the structure of the mounting device 100 is simplified, and the testing cost is reduced.
  • the two connection points of the flexible screen 300 and the mounting device 100 are located on the axis of symmetry of the flexible screen 300.
  • the flexible screen 300 is subjected to the mechanical squeezing test, it is ensured that the pulling force generated by the two connection points of the mounting device 100 is the same when the flexible screen 300 is bent, and the pulling force of one of the connecting points of the mounting device 100 is prevented from being excessively pulled.
  • the flexible screen 300 is detached, and the test stability is improved.
  • the mounting device 100 may specifically include a fixing bracket 110 and a mounting assembly 120 disposed on the fixing bracket 110 for relatively fixing the flexible screen 300.
  • the fixing bracket 110 can be a hollow box or the like, and the mounting assembly 120 can be deformed and stretched when the flexible screen 300 is pressed, and specifically can be a stainless steel spring, or can be stretched and elasticized. Made of materials. Relative to the fixed flexible screen 300, when the flexible screen 300 is subjected to mechanical squeezing test, excessive force is prevented to cause the flexible screen 300 to be broken. It will be appreciated that the specific construction of the mounting bracket 110 and mounting assembly 120 is not unique.
  • the mounting device 100 can also be a rigid fixed flexible screen 300.
  • the rigid fixation means that the mounting device 100 does not deform. If the mounting device 100 rigidly fixes the flexible screen 300, it is necessary to control the pressing force when performing the mechanical pressing test.
  • the squeezing device 200 is used to perform a mechanical squeezing test on the flexible screen 300 to bend the flexible screen 300.
  • the pinch point of the mechanical extrusion test deviates from the connection point of the flexible screen 300 and the mounting device 100, that is, the pinch point is not at the same point as the connection point.
  • the flexible screen 300 is mechanically squeezed to bend the flexible screen 300 to simulate the actual use environment of the flexible screen 300.
  • the squeezing device 200 can gradually approach the flexible screen 300 and then press the flexible screen 300 and gradually increase the degree of bending of the flexible screen 300.
  • the flexible screen 300 is in a symmetrical shape, and the two connection points of the flexible screen 300 and the mounting device 100 are located on the axis of symmetry of the flexible screen 300. Further, the squeezing point of the mechanical squeezing test is located on the line connecting the two connecting points, since the connecting line of the two connecting points is the symmetry axis of the flexible screen 300, and the squeezing point is not at the connection point of the two connecting points. Compared with the line, the mechanical compression test of the flexible screen 300 can also obtain a better extrusion effect by using a smaller pressing force, thereby further reducing the testing cost.
  • the squeezing device 200 may specifically include a pressing member 210 and a driver 220.
  • the pressing member 210 includes an extrusion head 212 and a connecting rod 214, and the extrusion head 212 is coupled to the connecting rod 214.
  • the surface of the extrusion head 212 can be a smooth transition surface.
  • the extrusion head 212 can be prevented from scratching the flexible screen 300 to interfere with the test and improve the test accuracy.
  • the shape of the extrusion head 212 in this embodiment is spherical.
  • the extrusion head 212 and the connecting rod 214 can be screwed to facilitate replacement of the different diameters of the extrusion head 212.
  • the flexible screen 300 can be respectively performed by using a plurality of pressing areas. Mechanical extrusion.
  • the flexible screen 300 is mechanically squeezed with different pressing areas, which is more in line with the actual use environment of the flexible screen 300, and further improves the test accuracy.
  • the driver 220 is fixed to the fixing bracket 110, and is connected to the pressing head 212 through the connecting rod 214 for The squeeze head 212 is driven to perform a mechanical extrusion test on the flexible screen 300.
  • the driver 220 may specifically include a controller and a motor that controls the motor to drive the extrusion head 212 to squeeze the flexible screen 300.
  • the flexible screen 300 is fixed in the horizontal direction, and the driver 220 is located above the flexible screen 300. It can be understood that the driver 220 may also have a fixed position at the fixed position of the fixing bracket 110 according to the fixed direction of the flexible screen 300.
  • the driver 220 drives the extrusion head 212 to press the flexible screen 300 at a preset frequency and a preset intensity within a set time.
  • the preset frequency may be 30 times/minute, and the preset strength may be 50.
  • the preset frequency and preset strength corresponding to the flexible screen 300 of different sizes and structures can be adjusted as needed.
  • the flexible screen 300 is mechanically pressed a plurality of times during the set time, which is more in line with the actual use environment of the flexible screen, and improves the test accuracy.
  • the preset frequency is the extrusion frequency of the extrusion head 212
  • the preset force is the pressing force of the extrusion head 212.
  • the preset frequency, the preset strength and the set time can be adjusted according to the situation.
  • the driver 220 and the connecting rod 214 can be connected through the telescopic rod, and the telescopic length of the telescopic rod can be changed by the driver 220 to control the pressing force of the pressing head 212.
  • the preset frequency and the preset strength are both plural, and the driver 220 drives the extrusion head 212 to respectively press the flexible screen 300 with at least one preset force at a preset frequency. That is, when the mechanical extrusion test is performed, the flexible screen 300 is pressed at different frequencies and strengths. It may be that a preset frequency corresponds to a preset strength, or all or part of the preset frequency corresponds to a plurality of preset strengths.
  • the preset frequency includes frequency A, frequency B, and frequency C.
  • the preset strength includes velocity a, velocity b, and velocity c. If all preset frequencies correspond to multiple preset strengths, then force is used at frequency A. a, at least two of the velocity b and the velocity c squeeze the flexible screen, similar at frequency B and frequency C.
  • the flexible screen 300 is squeezed at different frequencies and strengths, further conforming to the actual use environment of the flexible screen 300, and improving test accuracy.
  • the mounting device 100 further includes an adjustment device (not shown) that is disposed on the fixed bracket 110 and movable relative to the fixed bracket 110.
  • the driver 220 is coupled to the fixed bracket 110 by the adjusting device.
  • a plurality of set pressing points of the flexible screen 300 can be mechanically squeezed by moving the position of the driver 220 by the adjusting device.
  • the multi-point extrusion test of the flexible screen 300 is also more in line with the actual use environment of the flexible screen 300, which can improve the test accuracy.
  • the mechanical extrusion test is to change the drive through the adjustment device.
  • the position of 220 utilizes an extrusion head 212 to perform multi-point extrusion on the flexible screen 300: a plurality of compression points of the flexible screen 300 are mechanically squeezed at different frequencies and forces for a set time, respectively.
  • the extrusion head 212 is then replaced and the flexible screen 300 is again pressed.
  • the detecting device is used to perform bending performance detection on the flexible screen 300.
  • the detecting device performs bending performance detection on the flexible screen 300, which may be one or more of detecting mechanical reliability, optical reliability, and electrical reliability of the flexible screen 300.
  • the detecting device may specifically include a scanner, an optical detector, and an electrical detector.
  • the scanner is used to scan the flexible screen 300 after the mechanical squeezing test to detect the degree of damage of the flexible screen 300. After the detection result is obtained, the flexible screen 300 can also be classified according to the degree of damage, such as being divided into good products, qualified products, and defective products, and the mechanical reliability level of the flexible screen 300 is identified.
  • the optical detector is used to perform optical reliability testing when performing a mechanical extrusion test or after performing a mechanical extrusion test to detect the light transmittance of the flexible screen 300.
  • the optical detector may specifically include a light source portion and a detecting portion distributed on both sides of the flexible screen 300.
  • the light source portion emits an optical signal to illuminate the flexible screen 300, and the detecting portion receives the light signal passing through the flexible screen 300 to detect the light transmittance of the flexible screen.
  • the electrical detector is used to perform electrical reliability testing during mechanical extrusion testing or after mechanical extrusion testing to detect electrical parameters of the semiconductor device on the flexible screen 300.
  • the electrical detector may specifically be a semiconductor parameter tester.
  • the semiconductor parameter tester is connected to the semiconductor device on the flexible screen, and the electrical parameter test is performed to evaluate the change of the electrical parameters before and after the bending.
  • the mounting device 100 is connected to the flexible screen 300, and the pressing device 200 performs a mechanical pressing test on the flexible screen 300 to bend the flexible screen.
  • the pressing point of the mechanical pressing test deviates from the flexible screen 300 and the mounting device 100. Connection point.
  • the detecting device performs bending performance detection on the flexible screen 300.
  • the bending performance of the flexible screen 300 is tested by the mechanical extrusion test to simulate the use environment of the flexible screen 300. Compared with the conventional flexible screen bending test device, the operation is simple and the test cost is low.

Abstract

一种柔性屏幕弯曲测试方法，包括：将柔性屏幕（300）连接于安装装置（100）；对柔性屏幕（300）进行机械挤压测试，使柔性屏幕（300）弯曲，机械挤压测试的挤压点偏离柔性屏幕（300）与安装装置（100）的连接点；对柔性屏幕（300）进行弯曲性能检测。通过机械挤压测试模拟柔性屏幕（300）的使用环境，测试柔性屏幕（300）的弯曲性能，与传统的柔性屏幕弯曲测试方法及装置相比，操作简便，且测试成本低。还提供一种柔性屏幕弯曲测试系统。

Description

柔性屏幕弯曲测试方法和系统 技术领域
本发明涉及柔性器件的测试技术领域，特别是涉及一种柔性屏幕弯曲测试方法和系统。
背景技术
柔性显示器是由柔软的材料制成，可变形可弯曲的显示装置。柔性显示器像纸一样薄，即使切掉电源，内容也不会消失，也被叫做“电子纸”。柔性显示器因其极为轻薄、低功耗、可变形的特征，广泛运用于便携式电子设备。由于柔性显示器的柔性屏幕弯曲性能的好坏，直接影响柔性显示器的质量，因此有必要对柔性屏幕的弯曲特性进行评估。
传统的柔性屏幕弯曲测试方法及装置，是采用滚筒式的弯曲设备对柔性屏幕进行机械弯曲。具体为利用若干个相同或不同曲率的滚筒传输柔性屏幕，使柔性屏幕发生弯曲，然后对柔性屏幕进行机械可靠性测试。若是利用一个滚筒传输柔性屏幕，则需要相应部件按压住柔性屏幕，使柔性屏幕弯曲；若是利用多个滚筒传输柔性屏幕，则需要设计一个牵引装置牵引柔性屏幕，使得柔性屏幕可正常在多个滚筒间传输。利用滚筒传输并弯曲柔性屏幕，存在操作复杂，测试成本高的缺点。
发明内容
基于此，有必要提供一种操作简便、测试成本低的柔性屏幕弯曲测试方法和系统。
一种柔性屏幕弯曲测试方法，包括以下步骤：将柔性屏幕连接于安装装置；对所述柔性屏幕进行机械挤压测试，使所述柔性屏幕弯曲，所述机械挤压测试的挤压点偏离所述柔性屏幕与所述安装装置的连接点；以及对所述柔性屏幕进行弯曲性能检测。
在其中一个实施例中，所述柔性屏幕为多边形的柔性屏幕，将柔性屏幕连 接于安装装置包括：将所述柔性屏幕的相对两端连接于所述安装装置；
对所述柔性屏幕进行机械挤压测试包括：通过挤压装置逐渐接近所述柔性屏幕后按压所述柔性屏幕并逐渐加大所述柔性屏幕的弯曲程度。
在其中一个实施例中，对所述柔性屏幕进行机械挤压测试包括，在设定时间内，以预设频率和预设力度挤压所述柔性屏幕。
在其中一个实施例中，所述预设频率和预设力度的数量均为多个，对所述柔性屏幕进行机械挤压测试包括，分别在一预设频率时，以至少一预设力度挤压所述柔性屏幕。
在其中一个实施例中，对所述柔性屏幕进行机械挤压测试包括，分别对所述柔性屏幕的多个设定的挤压点进行机械挤压。
在其中一个实施例中，对所述柔性屏幕进行机械挤压测试包括，分别以预设的多个挤压面积，对所述柔性屏幕进行机械挤压。
在其中一个实施例中，对所述柔性屏幕进行弯曲性能检测，包括以下步骤：
在对所述柔性屏幕进行机械挤压测试后，检测所述柔性屏幕的机械可靠性。
在其中一个实施例中，对所述柔性屏幕进行弯曲性能检测，包括以下步骤：
在对所述柔性屏幕进行机械挤压测试时，或对所述柔性屏幕进行机械挤压测试后，检测所述柔性屏幕的光学可靠性和/或电学可靠性。
一种柔性屏幕弯曲测试系统，包括：
安装装置，用于连接柔性屏幕；
挤压装置，用于对所述柔性屏幕进行机械挤压测试，使所述柔性屏幕弯曲，所述机械挤压测试的挤压点偏离所述柔性屏幕与所述安装装置的连接点；以及
检测装置，用于对所述柔性屏幕进行弯曲性能检测。
在其中一个实施例中，所述安装装置连接所述柔性屏幕的相对两端，所述挤压装置逐渐接近所述柔性屏幕后按压所述柔性屏幕并逐渐加大所述柔性屏幕的弯曲程度。
在其中一个实施例中，所述安装装置包括固定支架和安装组件，所述安装组件设置于所述固定支架，用于将所述柔性屏幕进行相对固定。
在其中一个实施例中，所述安装组件为弹性材料制成并在所述柔性屏幕被 挤压时可变形拉伸。
在其中一个实施例中，所述挤压装置包括挤压部件和驱动器，所述挤压部件包括连接杆和连接所述连接杆的挤压头；所述驱动器固定于所述固定支架，且通过所述连接杆连接所述挤压头，用于驱动所述挤压头对所述柔性屏幕进行机械挤压测试。
在其中一个实施例中，所述安装装置还包括设置于所述固定支架，且可相对于所述固定支架移动的调节装置，所述驱动器通过所述调节装置与所述固定支架连接。
在其中一个实施例中，所述挤压头的表面为圆滑过渡曲面。
在其中一个实施例中，所述连接杆与所述挤压头螺纹连接。
上述柔性屏幕弯曲测试方法和系统，将柔性屏幕连接于安装装置，对柔性屏幕进行机械挤压测试，使柔性屏幕弯曲，机械挤压测试的挤压点偏离柔性屏幕与安装装置的连接点。对柔性屏幕进行弯曲性能检测。通过机械挤压测试模拟柔性屏幕的使用环境，测试柔性屏幕的弯曲性能，与传统的柔性屏幕弯曲测试方法及装置相比，操作简便，且测试成本低。
附图说明
图1为一实施例中柔性屏幕弯曲测试方法的流程图；
图2为一实施例中进行机械挤压测试前柔性屏幕弯曲测试系统的结构示意图；
图3为一实施例中进行机械挤压测试时柔性屏幕弯曲测试系统的结构示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发 明不受下面公开的具体实施例的限制。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
一种柔性屏幕弯曲测试方法，如图1所示，包括以下步骤：
步骤S110：将柔性屏幕连接于安装装置。
安装装置可以是相对固定柔性屏幕，相对固定是指当挤压柔性屏幕时，安装装置可以变形，使柔性屏幕可正常弯曲。本实施例中安装装置相对固定柔性屏幕，在对柔性屏幕进行机械挤压测试时，可避免力度过大而使得柔性屏幕破损。可以理解，在其他实施例中，安装装置也可以是硬性固定柔性屏幕，硬性固定即是指安装装置不会发生形变。若安装装置硬性固定柔性屏幕，则在进行机械挤压测试时，需要控制挤压力度。
在其中一个实施例中，步骤S110具体可包括：将柔性屏幕的相对两端连接于安装装置。柔性屏幕具体可以是四边形、五边形等，将柔性屏幕的相对两端与安装装置连接固定，对柔性屏幕进行机械挤压测试时也可保证柔性屏幕的固定效果。可以理解，如果是将柔性屏幕的相邻两端与安装装置连接，则必须还要将另外的至少一端也与安装装置连接才能确保固定效果。即本实施例中在确保柔性屏幕的固定效果前提下减少安装装置与柔性屏幕的连接点数量，简化安装装置的结构，降低测试成本。
进一步地，当柔性屏幕为对称形状，如矩形、菱形或正五边形等时，柔性屏幕与安装装置的两个连接点位于柔性屏幕的对称轴线上。举例说明，若柔性屏幕为矩形，两个连接点可分别在柔性屏幕相对两侧边的中点上，若柔性屏幕为正五边形，两个连接点可分别在柔性屏幕一侧边的中点及与该侧边相对的定点上。连接点位于柔性屏幕的对称轴线上，在对柔性屏幕进行机械挤压测试时， 确保柔性屏幕弯曲时对安装装置的两个连接点部位产生的拉扯力相同，避免安装装置的其中一连接点部位所受拉扯力过大而使得柔性屏幕脱落，提高测试稳定性。
步骤S120：对柔性屏幕进行机械挤压测试，使柔性屏幕弯曲。
机械挤压测试的挤压点偏离柔性屏幕与安装装置的连接点，即挤压点与连接点不在同一点。对柔性屏幕进行机械挤压，使柔性屏幕弯曲，模拟柔性屏幕的实际使用环境。具体来说，可以通过挤压装置逐渐接近柔性屏幕后按压柔性屏幕并逐渐加大柔性屏幕的弯曲程度。
在其中一个实施例中，柔性屏幕为对称形状，柔性屏幕与安装装置的两个连接点位于柔性屏幕的对称轴线上。更进一步地，机械挤压测试的挤压点位于两个连接点的连线上，由于两个连接点的连线即为柔性屏幕的对称轴线，与挤压点不在两个连接点的连线上相比，对柔性屏幕进行机械挤压测试时利用较小的挤压力度也可得到较好的挤压效果，进一步降低测试成本。
在其中一个实施例中，对柔性屏幕进行机械挤压测试为，在设定时间内，以预设频率和预设力度挤压柔性屏幕，预设频率可以是30次/分钟，预设力度可以是50牛，不同尺寸及结构的柔性屏幕300对应的预设频率和预设力度可以根据需要进行调整。本实施例中即是在设定时间内，对柔性屏幕进行多次机械挤压，更符合柔性屏幕的实际使用环境，提高测试准确性。可利用控制器根据预设频率和预设力度，控制电机带动挤压器件来挤压柔性屏幕。预设频率即挤压器件的挤压频率，预设力度即挤压器件的挤压力度，预设频率、预设力度和设定时间均可根据情况进行调整。可通过伸缩杆连接电机和挤压器件，利用电机改变伸缩杆的伸缩长度，控制挤压器件的挤压力度。
进一步地，预设频率和预设力度的数量均为多个，对柔性屏幕进行机械挤压测试包括，分别在一预设频率时，以至少一预设力度挤压柔性屏幕。即是在进行机械挤压测试时，以不同的频率和力度来挤压柔性屏幕。可以是一预设频率对应一预设力度，也可以是全部或部分预设频率对应多个预设力度。举例说明，预设频率包括频率A、频率B和频率C，预设力度包括力度a、力度b和力度c，若是全部预设频率均对应多个预设力度，则是在频率A时以力度a、力度 b和力度c中的至少两种挤压柔性屏幕，在频率B和频率C时类似。以不同的频率和力度来挤压柔性屏幕，进一步符合柔性屏幕的实际使用环境，提高测试准确性。
在其中一个实施例中，对柔性屏幕进行机械挤压测试包括，分别对柔性屏幕的多个设定的挤压点进行机械挤压。本实施例即是对柔性屏幕进行多点挤压测试，更加符合柔性屏幕的实际使用环境，可提高测试准确性。
此外，对柔性屏幕进行机械挤压测试，还可以是以预设的多个挤压面积，分别对柔性屏幕进行机械挤压。具体可通过改变挤压器件的体积来调整挤压面积，以不同的挤压面积对柔性屏幕进行机械挤压，同样更加符合柔性屏幕的实际使用环境，进一步提高测试准确性。
在一个较为具体的实施例中，机械挤压测试包括，先以一挤压面积对柔性屏幕进行多点挤压：对柔性屏幕的多个挤压点，分别在设定时间内以不同的频率和力度进行机械挤压。然后更换挤压器件，以另一挤压面积再次对柔性屏幕进行多点挤压。
步骤S130：对柔性屏幕进行弯曲性能检测。
在其中一个实施例中，步骤S130可包括：在对柔性屏幕进行机械挤压测试后，检测柔性屏幕的机械可靠性。
检测柔性屏幕的机械可靠性，即是在机械挤压测试后，检测柔性屏幕的损坏程度。具体可通过扫描仪对柔性屏幕进行扫描检测，在得到检测结果后还可根据损坏程度对柔性屏幕进行分类，如分成良品、合格品和次品等，标识柔性屏幕的机械可靠性等级。
在其中一个实施例中，步骤S130还可包括：在对柔性屏幕进行机械挤压测试时，或对柔性屏幕进行机械挤压测试后，检测柔性屏幕的光学可靠性和/或电学可靠性。
以同时包括光学可靠性检测和电学可靠性检测为例进行解释说明，光学可靠性检测即是利用光源照射柔性屏幕，检测柔性屏幕的透光率。电学可靠性检测即是检测柔性屏幕上的半导体器件的电学参数，具体包括使用半导体参数测试仪连接柔性屏幕上的半导体器件，进行电学参数测试，评估其电学参数在弯 曲前后的变化。
即，步骤S130对柔性屏幕进行的弯曲性能检测，可以是检测柔性屏幕的机械可靠性、光学可靠性和电学可靠性中的一种或多种。
上述柔性屏幕弯曲测试方法，将柔性屏幕连接于安装装置，对柔性屏幕进行机械挤压测试，使柔性屏幕弯曲，机械挤压测试的挤压点偏离柔性屏幕与安装装置的连接点。对柔性屏幕进行弯曲性能检测。通过机械挤压测试模拟柔性屏幕的使用环境，测试柔性屏幕的弯曲性能，与传统的柔性屏幕弯曲测试方法相比，操作简便，且测试成本低。
此外，还提供一种柔性屏幕弯曲测试系统。如图2和图3所示，柔性屏幕弯曲测试系统包括安装装置100、挤压装置200和检测装置(未图示)。
安装装置100用于连接柔性屏幕300。
安装装置100可以是相对固定柔性屏幕300，相对固定是指当挤压柔性屏幕300时，安装装置100可以变形，使柔性屏幕300可正常弯曲。
在其中一个实施例中，安装装置100连接柔性屏幕300的相对两端。柔性屏幕300具体可以是四边形、五边形等，将柔性屏幕300的相对两端与安装装置100连接固定，对柔性屏幕300进行机械挤压测试时也可保证柔性屏幕300的固定效果。即本实施例中在确保柔性屏幕300的固定效果前提下减少安装装置100与柔性屏幕300的连接点数量，简化安装装置100的结构，降低测试成本。
进一步地，当柔性屏幕300为对称形状，如矩形、菱形或正五边形等时，柔性屏幕300与安装装置100的两个连接点位于柔性屏幕300的对称轴线上。在对柔性屏幕300进行机械挤压测试时，确保柔性屏幕300弯曲时对安装装置100的两个连接点部位产生的拉扯力相同，避免安装装置100的其中一连接点部位所受拉扯力过大而使得柔性屏幕300脱落，提高测试稳定性。
在其中一个实施例中，安装装置100具体可包括固定支架110和安装组件120，安装组件120设置于固定支架110，用于将柔性屏幕300进行相对固定。
本实施例中固定支架110可为中空的箱体或类似机构，安装组件120在柔性屏幕300被挤压时可变形拉伸，具体可以是不锈钢弹簧，或由可以伸缩的弹性 材料制成。相对固定柔性屏幕300，在对柔性屏幕300进行机械挤压测试时，可避免力度过大而使得柔性屏幕300破损。可以理解，固定支架110和安装组件120的具体结构并不是唯一的。
在其他实施例中，安装装置100也可以是硬性固定柔性屏幕300，硬性固定即是指安装装置100不会发生形变。若安装装置100硬性固定柔性屏幕300，则在进行机械挤压测试时，需要控制挤压力度。
挤压装置200用于对柔性屏幕300进行机械挤压测试，使柔性屏幕300弯曲。
机械挤压测试的挤压点偏离柔性屏幕300与安装装置100的连接点，即挤压点与连接点不在同一点。对柔性屏幕300进行机械挤压，使柔性屏幕300弯曲，模拟柔性屏幕300的实际使用环境。具体来说，挤压装置200可以逐渐接近柔性屏幕300后按压柔性屏幕300并逐渐加大柔性屏幕300的弯曲程度。
在其中一个实施例中，柔性屏幕300为对称形状，柔性屏幕300与安装装置100的两个连接点位于柔性屏幕300的对称轴线上。更进一步地，机械挤压测试的挤压点位于两个连接点的连线上，由于两个连接点的连线即为柔性屏幕300的对称轴线，与挤压点不在两个连接点的连线上相比，对柔性屏幕300进行机械挤压测试时利用较小的挤压力度也可得到较好的挤压效果，进一步降低测试成本。
挤压装置200具体可包括挤压部件210和驱动器220。
挤压部件210包括挤压头212和连接杆214，挤压头212与连接杆214连接。挤压头212的表面可为圆滑过渡曲面，在进行机械挤压测试时，可避免挤压头212划破柔性屏幕300而对测试产生干扰，提高测试准确性。具体地，本实施例中挤压头212的形状为球形。
挤压头212与连接杆214可通过螺纹连接，便于更换不同体积的挤压头212，在对柔性屏幕300进行机械挤压测试时，可以是以多个挤压面积，分别对柔性屏幕300进行机械挤压。以不同的挤压面积对柔性屏幕300进行机械挤压，更加符合柔性屏幕300的实际使用环境，进一步提高测试准确性。
驱动器220固定于固定支架110，且通过连接杆214连接挤压头212，用于 驱动挤压头212对柔性屏幕300进行机械挤压测试。驱动器220具体可包括控制器和电机，控制器控制电机带动挤压头212来挤压柔性屏幕300。本实施例中柔性屏幕300沿水平方向固定，驱动器220位于柔性屏幕300的上方。可以理解，根据柔性屏幕300固定方向的不同，驱动器220在固定支架110的固定位置也会有所不同。
在其中一个实施例中，驱动器220驱动挤压头212在设定时间内，以预设频率和预设力度挤压柔性屏幕300，预设频率可以是30次/分钟，预设力度可以是50牛，不同尺寸及结构的柔性屏幕300对应的预设频率和预设力度可以根据需要进行调整。本实施例中即是在设定时间内，对柔性屏幕300进行多次机械挤压，更符合柔性屏幕的实际使用环境，提高测试准确性。预设频率即挤压头212的挤压频率，预设力度即挤压头212的挤压力度，预设频率、预设力度和设定时间均可根据情况进行调整。具体可通过伸缩杆连接驱动器220和连接杆214，利用驱动器220改变伸缩杆的伸缩长度，控制挤压头212的挤压力度。
进一步地，预设频率和预设力度的数量均为多个，驱动器220驱动挤压头212分别在一预设频率时，以至少一预设力度挤压柔性屏幕300。即是在进行机械挤压测试时，以不同的频率和力度来挤压柔性屏幕300。可以是一预设频率对应一预设力度，也可以是全部或部分预设频率对应多个预设力度。举例说明，预设频率包括频率A、频率B和频率C，预设力度包括力度a、力度b和力度c，若是全部预设频率均对应多个预设力度，则是在频率A时以力度a、力度b和力度c中的至少两种挤压柔性屏幕，在频率B和频率C时类似。以不同的频率和力度来挤压柔性屏幕300，进一步符合柔性屏幕300的实际使用环境，提高测试准确性。
在其中一个实施例中，安装装置100还包括设置于固定支架110，且可相对于固定支架110移动的调节装置(未图示)，驱动器220通过调节装置与固定支架110连接。本实施例中可通过调节装置移动驱动器220的位置，对柔性屏幕300的若干个设定的挤压点分别进行机械挤压。对柔性屏幕300进行多点挤压测试，同样更加符合柔性屏幕300的实际使用环境，可提高测试准确性。
在一个较为具体的实施例中，机械挤压测试为，通过调节装置改变驱动器 220的位置，利用一挤压头212对柔性屏幕300进行多点挤压：对柔性屏幕300的多个挤压点，分别在设定时间内以不同的频率和力度进行机械挤压。然后更换挤压头212，再次对柔性屏幕300进行点挤压。
检测装置用于对柔性屏幕300进行弯曲性能检测。
检测装置对柔性屏幕300进行弯曲性能检测，可以是检测柔性屏幕300的机械可靠性、光学可靠性和电学可靠性中的一种或多种。以弯曲性能检测包括检测机械可靠性、光学可靠性和电学可靠性为例，检测装置具体可包括扫描仪、光学检测仪和电学检测仪。
扫描仪用于在机械挤压测试后，对柔性屏幕300进行扫描，检测柔性屏幕300的损坏程度。在得到检测结果后还可根据损坏程度对柔性屏幕300进行分类，如分成良品、合格品和次品等，标识柔性屏幕300的机械可靠性等级。
光学检测仪用于在进行机械挤压测试时，或进行机械挤压测试后进行光学可靠性测试，检测柔性屏幕300的透光率。光学检测仪具体可包括分布在柔性屏幕300两侧的光源部和检测部，光源部发出光信号照射柔性屏幕300，检测部接收穿过柔性屏幕300的光信号，检测柔性屏幕的透光率。
电学检测仪用于在进行机械挤压测试时，或进行机械挤压测试后进行电学可靠性测试，检测柔性屏幕300上的半导体器件的电学参数。电学检测仪具体可以是半导体参数测试仪，将半导体参数测试仪连接柔性屏幕上的半导体器件，进行电学参数测试，评估其电学参数在弯曲前后的变化。
上述柔性屏幕弯曲测试系统，安装装置100连接柔性屏幕300，挤压装置200对柔性屏幕300进行机械挤压测试，使柔性屏幕弯曲，机械挤压测试的挤压点偏离柔性屏幕300与安装装置100的连接点。检测装置对柔性屏幕300进行弯曲性能检测。通过机械挤压测试模拟柔性屏幕300的使用环境，测试柔性屏幕300的弯曲性能，与传统的柔性屏幕弯曲测试装置相比，操作简便，且测试成本低。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域 的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种柔性屏幕弯曲测试方法，其特征在于，包括以下步骤：
    将柔性屏幕连接于安装装置；
    对所述柔性屏幕进行机械挤压测试，将所述机械挤压测试的挤压点偏离所述柔性屏幕与所述安装装置的连接点，使所述柔性屏幕弯曲；以及
    对所述柔性屏幕进行弯曲性能检测。
  2. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，将柔性屏幕连接于安装装置包括：将所述柔性屏幕的相对两端连接于所述安装装置；
    对所述柔性屏幕进行机械挤压测试包括：通过挤压装置逐渐接近所述柔性屏幕后按压所述柔性屏幕并逐渐加大所述柔性屏幕的弯曲程度。
  3. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，对所述柔性屏幕进行机械挤压测试包括，在设定时间内，以预设频率和预设力度挤压所述柔性屏幕。
  4. 根据权利要求3所述的柔性屏幕弯曲测试方法，其特征在于，所述预设频率和预设力度的数量均为多个，对所述柔性屏幕进行机械挤压测试包括，分别在一预设频率时，以至少一预设力度挤压所述柔性屏幕。
  5. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，对所述柔性屏幕进行机械挤压测试包括，分别对所述柔性屏幕的多个设定的挤压点进行机械挤压。
  6. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，对所述柔性屏幕进行机械挤压测试包括，分别以预设的多个挤压面积，对所述柔性屏幕进行机械挤压。
  7. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，对所述柔性屏幕进行弯曲性能检测，包括以下步骤：
    在对所述柔性屏幕进行机械挤压测试后，检测所述柔性屏幕的机械可靠性。
  8. 根据权利要求1所述的柔性屏幕弯曲测试方法，其特征在于，对所述柔性屏幕进行弯曲性能检测，包括以下步骤：
    在对所述柔性屏幕进行机械挤压测试时，或对所述柔性屏幕进行机械挤压测试后，检测所述柔性屏幕的光学可靠性和/或电学可靠性。
  9. 一种柔性屏幕弯曲测试系统，其特征在于，包括：
    安装装置，用于连接柔性屏幕；
    挤压装置，用于对所述柔性屏幕进行机械挤压测试，将所述机械挤压测试的挤压点偏离所述柔性屏幕与所述安装装置的连接点，使所述柔性屏幕弯曲，；以及
    检测装置，用于对所述柔性屏幕进行弯曲性能检测。
  10. 根据权利要求9所述的柔性屏幕弯曲测试系统，其特征在于，所述安装装置连接所述柔性屏幕的相对两端，所述挤压装置用于逐渐接近所述柔性屏幕后按压所述柔性屏幕并逐渐加大所述柔性屏幕的弯曲程度。
  11. 根据权利要求9所述的柔性屏幕弯曲测试系统，其特征在于，所述安装装置包括固定支架和安装组件，所述安装组件设置于所述固定支架，用于将所述柔性屏幕进行相对固定。
  12. 根据权利要求11所述的柔性屏幕弯曲测试系统，其特征在于，所述安装组件为弹性材料制成并在所述柔性屏幕被挤压时可变形拉伸。
  13. 根据权利要求11所述的柔性屏幕弯曲测试系统，其特征在于，所述挤压装置包括挤压部件和驱动器；
    所述挤压部件包括连接杆和连接所述连接杆的挤压头；
    所述驱动器固定于所述固定支架，且通过所述连接杆连接所述挤压头，用于驱动所述挤压头对所述柔性屏幕进行机械挤压测试。
  14. 根据权利要求13所述的柔性屏幕弯曲测试系统，其特征在于，所述安装装置还包括设置于所述固定支架，且可相对于所述固定支架移动的调节装置，所述驱动器通过所述调节装置与所述固定支架连接。
  15. 根据权利要求13所述的柔性屏幕弯曲测试系统，其特征在于，所述挤压头的表面为圆滑过渡曲面。
  16. 根据权利要求13所述的柔性屏幕弯曲测试系统，其特征在于，所述连接杆与所述挤压头螺纹连接。
PCT/CN2014/094111 2013-12-18 2014-12-17 柔性屏幕弯曲测试方法和系统 WO2015090206A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US15/105,981 US10197482B2 (en) 2013-12-18 2014-12-17 Method and system for bending test of flexible screen
KR1020187023784A KR101997760B1 (ko) 2013-12-18 2014-12-17 유연 스크린의 굽힘 테스트를 위한 방법 및 시스템
EP14872266.3A EP3086105B1 (en) 2013-12-18 2014-12-17 Bending test method and system for flexible screen
JP2016541302A JP6300936B2 (ja) 2013-12-18 2014-12-17 フレキシブルスクリーン曲げ試験方法及びシステム
KR1020167019015A KR20160099654A (ko) 2013-12-18 2014-12-17 유연 스크린의 굽힘 테스트를 위한 방법 및 시스템

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310698708.4 2013-12-18
CN201310698708.4A CN104729833B (zh) 2013-12-18 2013-12-18 柔性屏体弯曲测试方法和系统

Publications (1)

Publication Number Publication Date
WO2015090206A1 true WO2015090206A1 (zh) 2015-06-25

Family

ID=53402113

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/094111 WO2015090206A1 (zh) 2013-12-18 2014-12-17 柔性屏幕弯曲测试方法和系统

Country Status (7)

Country Link
US (1) US10197482B2 (zh)
EP (1) EP3086105B1 (zh)
JP (1) JP6300936B2 (zh)
KR (2) KR20160099654A (zh)
CN (1) CN104729833B (zh)
TW (1) TWI558992B (zh)
WO (1) WO2015090206A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115200955A (zh) * 2022-07-01 2022-10-18 江苏和天下节能科技股份有限公司 一种挤压式柔性混凝土抗压强度试验用试件成型装置

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104729833B (zh) * 2013-12-18 2018-02-13 昆山工研院新型平板显示技术中心有限公司 柔性屏体弯曲测试方法和系统
CN105607317B (zh) * 2016-03-24 2018-11-23 京东方科技集团股份有限公司 显示器亮度调整方法、测试方法及装置、显示器测试设备
CN106501076B (zh) * 2016-10-28 2019-02-15 昆山国显光电有限公司 一种柔性屏弯曲能力的检测夹具与方法
CN106680108A (zh) * 2016-11-24 2017-05-17 惠科股份有限公司 一种显示面板弯曲测试的方法及装置
US11169063B2 (en) * 2017-02-27 2021-11-09 Yuasa System Co. Ltd. Deformation testing apparatus including a detachable/attachable test cartridge arranged on an upper part of a frame
CN108957161B (zh) * 2017-05-24 2020-09-18 昆山国显光电有限公司 柔性屏的可靠性检测装置及其使用方法
CN107631861A (zh) * 2017-08-28 2018-01-26 武汉华星光电半导体显示技术有限公司 柔性显示装置弯折测试设备及系统
KR101943750B1 (ko) * 2017-09-14 2019-01-30 매그나칩 반도체 유한회사 플렉서블 반도체 칩 패키지의 벤딩 테스트 소켓 및 이를 이용한 벤딩 테스트 방법
CN108106948A (zh) * 2017-12-19 2018-06-01 苏州吉赛电子科技有限公司 一种柔性屏弯曲测试装置
CN107941628B (zh) * 2017-12-20 2024-05-03 柔电（武汉）科技有限公司 一种柔性电子产品的耐弯曲性能检测设备及其检测方法
CN111801566A (zh) * 2018-02-28 2020-10-20 深圳市柔宇科技股份有限公司 柔性显示屏循环弯曲寿命测试设备及测试方法
CN108535119B (zh) * 2018-03-29 2021-03-02 广州国显科技有限公司 柔性基板的抗弯折性能评估方法
CN109187348A (zh) * 2018-10-18 2019-01-11 苏州弗士达科学仪器有限公司 一种oled屏幕弯曲装置及oled屏幕自动测试装置
CN110749511A (zh) * 2019-11-29 2020-02-04 武汉天马微电子有限公司 一种显示面板弯折测试治具
CN111122131B (zh) * 2020-01-10 2022-08-09 昆山国显光电有限公司 一种柔性屏的测试装置
US11408788B2 (en) * 2020-03-31 2022-08-09 Toyota Research Institute, Inc. Variable geometry and stiffness control for fluid filled sensor
CN111504788B (zh) * 2020-05-09 2023-06-06 安徽天大铜业有限公司 一种铜线弯曲后的拉力检测机构
CN111678789A (zh) * 2020-06-19 2020-09-18 中国电子科技集团公司第二十四研究所 柔性电子多轴应力加载装置
CN111678801A (zh) * 2020-06-19 2020-09-18 中国电子科技集团公司第二十四研究所 柔性电子弯曲加载装置
CN111735392B (zh) * 2020-06-28 2022-09-06 合肥维信诺科技有限公司 一种柔性显示面板及其展平度测试方法
CN111624096B (zh) * 2020-07-08 2023-06-27 玛尔斯检测技术(苏州)有限公司 一种柔性材料的测试装置及方法
CN113029812A (zh) * 2021-03-18 2021-06-25 林贵滨 一种显示屏的检测装置
CN113916701A (zh) * 2021-10-13 2022-01-11 中国电子科技集团公司第二十四研究所 一种柔性电子复合应变测试装置
CN114120840B (zh) * 2021-12-11 2023-05-09 武汉华星光电半导体显示技术有限公司 柔性显示面板的形变控制方法及形变控制装置
CN114563289B (zh) * 2022-02-08 2024-04-19 华玻视讯(珠海)科技有限公司 一种柔性触控屏的性能测试方法及其设备
CN116499894B (zh) * 2023-06-30 2023-08-25 江苏弘光显示技术有限公司 一种柔性屏弯曲测试装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963428A (zh) * 2005-11-11 2007-05-16 财团法人工业技术研究院 柔性元件的检测方法与系统
CN101324524A (zh) * 2007-06-11 2008-12-17 财团法人工业技术研究院 测量装置
KR20100026366A (ko) * 2008-08-29 2010-03-10 한국기계연구원 Ｏｌｅｄ 시편 시험장치
CN101788427A (zh) * 2010-01-29 2010-07-28 湘潭大学 一种多功能薄膜力学性能检测装置
US20120067134A1 (en) * 2009-05-29 2012-03-22 Arizona State University Display bender and method of testing flexible display
CN103149044A (zh) * 2013-02-22 2013-06-12 南京邮电大学 一种柔性器件机械性能测试装置
KR20130111786A (ko) * 2012-04-02 2013-10-11 지 . 텍 (주) 유연 기판과 유연 표시소자의 벤딩 테스트 장치 및 방법
CN203811355U (zh) * 2013-12-30 2014-09-03 北京维信诺科技有限公司 一种柔性显示器的弯曲试验装置

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07210636A (ja) 1994-01-11 1995-08-11 Mitsubishi Plastics Ind Ltd カード用曲げ試験装置
JPH08136427A (ja) 1994-11-08 1996-05-31 Misawa Homes Co Ltd 木材強度検査方法
US5616848A (en) * 1995-03-20 1997-04-01 Chrysler Corporation Plate testing apparatus and method of testing
JP2002062231A (ja) 2000-08-22 2002-02-28 Bando Chem Ind Ltd ベルト曲げ剛性測定装置
US6776050B2 (en) * 2001-09-28 2004-08-17 Osrano Opto Semiconductors Gmbh Support for bending test of flexible substrates
JP2005091187A (ja) 2003-09-18 2005-04-07 Tdk Corp カードの強度試験装置
JP2005241434A (ja) 2004-02-26 2005-09-08 Misawa Homes Co Ltd 木材強度検査方法および木材強度検査装置
CN1258675C (zh) * 2004-08-10 2006-06-07 东华大学 一种用于柔性材料的弯曲疲劳性能测量装置
KR100672059B1 (ko) * 2004-12-27 2007-01-22 삼성전자주식회사 3축 굽힘 실험용 지그
CN2837820Y (zh) 2005-09-23 2006-11-15 比亚迪股份有限公司 Lcd屏弯曲力测试装置
CN101025388A (zh) * 2006-02-17 2007-08-29 鸿富锦精密工业（深圳）有限公司 抗弯压测试设备
US7461564B2 (en) * 2006-10-04 2008-12-09 Corning Incorporated Method and apparatus for proof testing a sheet of brittle material
US7591189B2 (en) * 2007-03-20 2009-09-22 Glas-Weld Systems, Inc. Glass testing apparatus
TWI357497B (en) 2007-10-08 2012-02-01 Ind Tech Res Inst Apparatus for testing flexible device under bendin
TWI370248B (en) * 2008-05-02 2012-08-11 Ind Tech Res Inst Method and system for inspecting characteristics of bended flexible unit
CN102362166B (zh) * 2009-01-20 2013-11-06 国立大学法人东京农工大学 压痕试验方法和压痕试验装置
CN101793651A (zh) * 2010-02-25 2010-08-04 安踏（中国）有限公司 弯曲性能测试装置
KR101295887B1 (ko) * 2010-04-13 2013-08-12 한국전자통신연구원 플렉서블 소자의 벤딩 테스트 설비
KR101732947B1 (ko) * 2010-07-27 2017-05-25 엘지디스플레이 주식회사 플렉서블 디스플레이 검사장치
KR101774302B1 (ko) * 2011-05-13 2017-09-05 한국전자통신연구원 유연 기판의 벤딩 테스트 장치
CN103890828B (zh) 2011-10-19 2017-02-15 应用材料公司 卷动式测试设备及卷动式测试柔性基板的方法
US8783115B2 (en) * 2012-06-11 2014-07-22 Verizon Patent And Licensing Inc. System and method for measuring cable bending force and cable kink force
TWI480549B (zh) * 2012-12-21 2015-04-11 Ind Tech Res Inst 彎曲應力的測試方法及其測試裝置
US9176039B2 (en) * 2013-02-28 2015-11-03 The Boeing Company Method and systems for determining hydrogen embrittlement
KR102124403B1 (ko) * 2013-08-02 2020-06-19 삼성디스플레이 주식회사 플렉서블 디바이스의 테스트 장치
CN104729833B (zh) * 2013-12-18 2018-02-13 昆山工研院新型平板显示技术中心有限公司 柔性屏体弯曲测试方法和系统
US10094752B2 (en) * 2014-10-11 2018-10-09 Yuasa System Co., Ltd. Folding test machine
US20160282249A1 (en) * 2015-03-26 2016-09-29 Nanovea, Inc. Method for calculating an indenter area function and quantifying a deviation from the ideal shape of an indenter
US20160334315A1 (en) * 2015-05-12 2016-11-17 Nanovea, Inc. Method for automated parameter and selection testing based on known characteristics of the sample being tested

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963428A (zh) * 2005-11-11 2007-05-16 财团法人工业技术研究院 柔性元件的检测方法与系统
CN101324524A (zh) * 2007-06-11 2008-12-17 财团法人工业技术研究院 测量装置
KR20100026366A (ko) * 2008-08-29 2010-03-10 한국기계연구원 Ｏｌｅｄ 시편 시험장치
US20120067134A1 (en) * 2009-05-29 2012-03-22 Arizona State University Display bender and method of testing flexible display
CN101788427A (zh) * 2010-01-29 2010-07-28 湘潭大学 一种多功能薄膜力学性能检测装置
KR20130111786A (ko) * 2012-04-02 2013-10-11 지 . 텍 (주) 유연 기판과 유연 표시소자의 벤딩 테스트 장치 및 방법
CN103149044A (zh) * 2013-02-22 2013-06-12 南京邮电大学 一种柔性器件机械性能测试装置
CN203811355U (zh) * 2013-12-30 2014-09-03 北京维信诺科技有限公司 一种柔性显示器的弯曲试验装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3086105A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115200955A (zh) * 2022-07-01 2022-10-18 江苏和天下节能科技股份有限公司 一种挤压式柔性混凝土抗压强度试验用试件成型装置
CN115200955B (zh) * 2022-07-01 2024-03-26 江苏和天下节能科技股份有限公司 一种挤压式柔性混凝土抗压强度试验用试件成型装置

Also Published As

Publication number Publication date
US10197482B2 (en) 2019-02-05
KR20160099654A (ko) 2016-08-22
KR20180095138A (ko) 2018-08-24
CN104729833B (zh) 2018-02-13
TW201525436A (zh) 2015-07-01
KR101997760B1 (ko) 2019-07-08
US20170102302A1 (en) 2017-04-13
EP3086105A4 (en) 2017-09-06
TWI558992B (zh) 2016-11-21
JP2016540227A (ja) 2016-12-22
EP3086105B1 (en) 2021-01-27
CN104729833A (zh) 2015-06-24
JP6300936B2 (ja) 2018-03-28
EP3086105A1 (en) 2016-10-26

Similar Documents

Publication Publication Date Title
WO2015090206A1 (zh) 柔性屏幕弯曲测试方法和系统
WO2015090207A1 (zh) 柔性屏幕弯曲测试方法及系统
TWI684321B (zh) 一種框架壓縮裝置及薄膜拉伸方法
CN205643255U (zh) 一种适用于声发射检测仪器探头的通用固定装置
US10113944B2 (en) Circuit board testing apparatus and circuit board testing method
CN208459187U (zh) 柔性屏弯折测试装置
US20140185914A1 (en) Device for determining surface defects
CN208935293U (zh) 一种快捷安装便捷式标准杠杆
CN217587089U (zh) 一种便携式无损检测装置
CN205120503U (zh) 钓竿强度测试装置
CN209624270U (zh) 橡胶管检测装置
CN218445274U (zh) 一种可调节点位的输电电杆超声波诊断装置
CN202886216U (zh) 材料延伸率非接触式测量装置
CN107601052A (zh) 一种市政宣传用的lcd屏幕检测移送装置
CN217717279U (zh) 一种简易推拉力测试机模块更换结构
CN211292737U (zh) 一种超声波检测设备
CN218496596U (zh) 一种模组拉拔力测试检测设备
CN204314085U (zh) 用于纸箱的压力检测机构
CN106018075A (zh) 一种用于编带拉力测试的固定装置
CN109817087A (zh) 一种室外用广告宣传装置
CN109139840A (zh) 一种快捷安装便捷式标准杠杆
CN106078566A (zh) 手动夹钳
CN105208310A (zh) 触控显示一体化数字网络视频录像机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14872266

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016541302

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 15105981

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20167019015

Country of ref document: KR

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2014872266

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014872266

Country of ref document: EP