WO2015090207A1 - 柔性屏幕弯曲测试方法及系统 - Google Patents

柔性屏幕弯曲测试方法及系统 Download PDF

Info

Publication number
WO2015090207A1
WO2015090207A1 PCT/CN2014/094112 CN2014094112W WO2015090207A1 WO 2015090207 A1 WO2015090207 A1 WO 2015090207A1 CN 2014094112 W CN2014094112 W CN 2014094112W WO 2015090207 A1 WO2015090207 A1 WO 2015090207A1
Authority
WO
WIPO (PCT)
Prior art keywords
flexible screen
fixing device
bending test
pull rod
flexible
Prior art date
Application number
PCT/CN2014/094112
Other languages
English (en)
French (fr)
Inventor
柳冬冬
高胜
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 KR1020167019017A priority Critical patent/KR101794643B1/ko
Priority to EP14870875.3A priority patent/EP3086107B1/en
Priority to JP2016541044A priority patent/JP6449890B2/ja
Priority to US15/105,963 priority patent/US10054527B2/en
Publication of WO2015090207A1 publication Critical patent/WO2015090207A1/zh

Links

Images

Classifications

    • 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/08—Detecting presence of flaws or irregularities
    • 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
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • 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
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0005—Repeated or cyclic
    • 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
    • G01N2203/0014—Type of force applied
    • G01N2203/0023—Bending
    • 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
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
    • 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
    • G01N2203/0058—Kind of property studied
    • G01N2203/006—Crack, flaws, fracture or rupture
    • G01N2203/0067—Fracture or rupture
    • 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
    • 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
    • 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
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
    • 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
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Definitions

  • the invention relates to the technical field of testing flexible devices, and in particular 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 flexible screen flexural performance of the flexible display directly affects the quality of the flexible display, it is necessary to evaluate the bending characteristics of the flexible screen, and after performing the compression bending test on the flexible screen, the bending performance of the flexible screen is detected.
  • 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. If a flexible screen is used to transport a flexible screen, the corresponding component is required to squeeze the flexible screen to bend the flexible screen; if a 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 disadvantage of high test cost.
  • a flexible screen bending test method comprising the steps of: connecting a flexible screen to a fixing device to form two connecting ends; performing a pressing test on the flexible screen, comprising moving the fixing device to connect the connecting end of the fixing device The distance between the changes is less than or equal to the length of the flexible screen between the two connecting ends.
  • the squeezing test of the flexible screen comprises:
  • the fixing device is moved in mutually parallel directions to press the flexible screen.
  • the step of pressing the flexible screen along a connecting direction of the two connecting ends comprises: moving the fixing device by a predetermined amplitude along a connecting direction of the two connecting ends, and squeezing
  • the flexible screen is a predetermined number of times, and the number of the predetermined amplitudes is plural.
  • the step of moving the fixing device in the mutually parallel directions to press the flexible screen respectively comprises:
  • the squeezing test of the flexible screen comprises: respectively, after moving the fixing device to the flexible device for a first predetermined number of times in a first direction by a predetermined amplitude, along the second The direction moves the fixture to set the amplitude to squeeze the flexible screen a second predetermined number of times.
  • the number of the preset amplitudes is plural and/or the number of the set amplitudes is plural.
  • the two connecting ends are respectively located on opposite sides of the flexible screen, and the connecting lines of the two connecting ends are perpendicular to the side of the flexible screen.
  • a flexible screen bending test system comprising:
  • a fixing device for connecting the flexible screen to form two terminals
  • a squeezing device for moving the fixing device such that a distance between the connecting ends of the fixing device is changed and less than or equal to a length of the flexible screen between the two connecting ends to perform the flexible screen Squeeze test.
  • the fixing device includes a first jig and a second jig for respectively connecting two opposite ends of the flexible screen to form two connecting ends.
  • the squeezing device comprises:
  • first pull rod and a second pull rod wherein one ends of the first pull rod and the second pull rod are respectively connected to the first clamp and the second clamp;
  • first base and a second base are disposed on the fixing bracket and Moving relative to the fixing bracket, respectively connecting the other ends of the first pull rod and the second pull rod, for controlling the extension length of the first pull rod and the second pull rod to be squeezed along the connecting direction of the two connecting ends Pressing the flexible screen or moving the flexible screens in mutually parallel directions.
  • first clamp and the second clamp are movably coupled to the first and second drawbars, respectively.
  • the flexible screen bending test method and system described above connect the flexible screen to the fixing device to form two connecting ends.
  • the moving fixture changes the distance between the connecting ends of the fixing device and is less than or equal to the length of the flexible screen between the two connecting ends, and performs a squeezing test on the flexible screen.
  • the flexible screen is squeeze tested by the mobile fixture to simulate the use environment of the flexible screen, which reduces the test cost compared with the conventional flexible screen bending test method and apparatus.
  • FIG. 1 is a flow chart of a flexible screen bending test method in an embodiment
  • FIGS. 2A to 2C are schematic diagrams showing the operation of a flexible screen bending test system in an embodiment
  • 3A to 3C are schematic views showing the operation of a flexible screen bending test system in another embodiment.
  • a flexible screen bending test method as shown in FIG. 1, includes the following steps:
  • Step S110 connecting the flexible screen to the fixing device to form two connecting ends.
  • the flexible screen is connected to the fixing device, which may be a point connection, a wire connection or a surface connection.
  • the two connection ends formed by the fixing device may be a connection point, a connection line or a connection surface.
  • the two connecting ends are respectively located on opposite sides of the flexible screen, and the connecting lines of the two connecting ends are perpendicular to the side of the flexible screen.
  • Step S120 performing a squeeze test on the flexible screen.
  • a mobile fixture is included to vary the distance between the ends of the fixture and less than or equal to the length of the flexible screen between the two ends. Squeeze the flexible screen to simulate the actual use of the flexible screen.
  • the flexible screen is subjected to a compression test by pressing the flexible screen along the line direction of the two connection ends; or respectively moving the fixing device in mutually parallel directions to press the flexible screen.
  • the flexible screen is pressed along the connecting direction of the two connecting ends to bend the flexible screen, and it is conceivable that the flexible screen is curved in a "U" shape at this time.
  • the step of pressing the flexible screen along the connecting direction of the two connecting ends comprises: moving the fixing device by a predetermined amplitude along the connecting direction of the two connecting ends, pressing the flexible screen a predetermined number of times, the number of the predetermined amplitude being plural. That is, in the embodiment, the fixing device is moved at different predetermined amplitudes, and the flexible screen is squeezed, which is more in line with the actual use environment of the flexible screen, and the test accuracy can be improved.
  • Moving the fixing device in mutually parallel directions respectively presses the flexible screen, which may be to press the flexible screen in a horizontal direction, a vertical direction or other directions to bend the flexible screen.
  • the flexible screen When the pressing direction is the same as the connecting direction of the two connecting ends, the flexible screen has a "U" shape curved shape; when the pressing direction is different from the connecting direction of the two connecting ends, the flexible screen has an "S" shape curved shape .
  • the flexible screen is squeezed to have different curved shapes, which can also improve the simulation degree of the actual use environment of the flexible screen, and further improve the test accuracy.
  • the fixing device is respectively pressed in mutually parallel directions to press the flexible screen
  • the step may include: firstly moving the fixing device in the first direction parallel to each other to press the flexible screen, and then moving the fixing device in the second direction parallel to each other to press the flexible screen.
  • the first direction is perpendicular to the second direction, and when the flexible screen is squeezed, the operation is simplified and the efficiency is improved. It can be understood that the first direction and the second direction are not unique.
  • the flexible screen when the fixed device is pressed in the first direction to press the flexible screen, the flexible screen has an "S" shape curved shape.
  • the flexible screen may be pressed in the second direction when the flexible screen is pressed in the first direction; or the flexible screen may be squeezed in the first direction and restored to the initial state, and then
  • the second direction moving fixture presses the flexible screen, and the initial state refers to the state before the flexible screen is subjected to the squeeze test.
  • the flexible screen is pressed in the other direction when the flexible screen is "S"-shaped, and the bending radius of the flexible screen is changed; if the latter is, the flexible screen is pressed in one direction to bend it into After the "S" shape and returning to the initial state, the flexible screen is pressed in the other direction to be bent again into an "S" shape. In either case, the diversity of the flexible screen extrusion method is increased, which is more in line with the actual use environment of the flexible screen, and improves the test accuracy.
  • the squeezing test of the flexible screen may be: moving the fixing device in a second direction with a set amplitude after moving the fixing device to the flexible screen for a first predetermined number of times in a first direction with a predetermined amplitude. Squeeze the flexible screen a second preset number of times. The flexible screen is pressed multiple times in the first direction and the second direction, which is more in line with the actual use environment of the flexible screen.
  • the number of preset amplitudes is plural and/or the number of set amplitudes is plural.
  • the preset amplitude and the set amplitude are both exemplified.
  • the preset amplitude includes amplitude A, amplitude B, and amplitude C.
  • the set amplitude includes amplitude a, amplitude b, and amplitude c, if all preset amplitudes are Corresponding to the plurality of set amplitudes, after pressing the flexible screen for a first predetermined number of times in the first direction by the amplitude A, the second direction is squeezed by at least two of the amplitude a, the amplitude b and the amplitude c respectively. Press the flexible screen a second preset number of times.
  • the situation in which the flexible screen is pressed in the second direction after pressing the flexible screen for a first predetermined number of times in the first direction at the amplitude B and the amplitude C is similar.
  • the flexible screen is squeezed with different amplitudes in both the first direction and the second direction, which is more in line with the actual use environment of the flexible screen, and the test accuracy can be improved.
  • the flexible screen is subjected to a compression test by moving the fixing device by a predetermined amplitude along the connecting direction of the two connecting ends, and pressing the flexible screen a predetermined number of times to make the flexible
  • the screen is curved in a "U" shape.
  • the flexible device is pressed in the first direction by a predetermined amplitude to press the flexible screen for a first predetermined number of times, so that the flexible screen is curved in an "S" shape. Moving the fixture in a second direction with a set amplitude to squeeze the flexible screen a second predetermined number of times.
  • the flexible screen bending test method described above connects the flexible screen to the fixing device to form two connecting ends.
  • the squeezing test of the flexible screen includes moving the fixture such that the distance between the ends of the fixture changes and is less than or equal to the length of the flexible screen between the two ends.
  • the flexible screen is squeeze tested by the mobile fixture to simulate the use environment of the flexible screen, which reduces the test cost compared with the traditional flexible screen bending test method.
  • step S120 the following steps may be further included after step S120:
  • the performance detection of the flexible screen may specifically include: detecting the mechanical reliability of the flexible screen after performing the extrusion 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 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.
  • Performance testing of the flexible screen may also include detecting optical reliability and/or electrical reliability of the flexible screen upon squeezing the flexible screen or after performing a squeezing test on the flexible screen.
  • optical detection is to illuminate a flexible screen with a light source to detect the transmittance of the flexible screen.
  • Electrical testing is the detection of electrical parameters of a semiconductor device on a flexible screen, including the use of a semiconductor parameter tester to connect a semiconductor device on a flexible screen, electrical parameter testing, and evaluation of changes in electrical parameters before and after bending.
  • the performance detection of the flexible screen may be one or more of detecting mechanical reliability, optical reliability, and electrical reliability of the flexible screen.
  • the present invention also provides a flexible screen bending test system, as shown in Fig. 2A, comprising a fixture and a squeezing device 200 (not shown in the drawings of the fixture).
  • a fixture is used to connect the flexible screen 300 to form two connections.
  • the fixing device is connected to the flexible screen 300, and may be a point connection, a line connection or a surface connection, correspondingly,
  • the two connection ends formed at the fixing device may be connection points, connection lines or connection faces.
  • the fixing device may specifically include a first jig and a second jig for respectively connecting two opposite ends of the flexible screen 300 to form two connecting ends.
  • the connection of the two connection ends in this embodiment is perpendicular to the side of the flexible screen 300.
  • the pressing device 200 is used for performing a squeezing test on the flexible screen 300, and the distance between the connecting ends of the fixing device is changed by the moving fixing device and is less than or equal to the length of the flexible screen 300 between the two connecting ends to the flexible screen 300.
  • a squeeze test is performed to simulate the actual use environment of the flexible screen 300.
  • the pressing device 200 may specifically include a fixing bracket 210, a first telescopic rod 220 and a second rod 230, and a first base 240 and a second base 250.
  • first pull rod 220 and the second pull rod 230 are connected to the first jig and the second jig, respectively.
  • the first clamp and the second clamp may be fixedly coupled to the first tie rod 220 and the second pull rod 230, such as welded or threaded, or may be movably connected, such as by a rotational connection that is rotatable along a fixed axis.
  • the first clamp and the second clamp are movably connected with the first pull rod 220 and the second pull rod 230, so that the flexible screen 300 can be freely rotated, and the flexible screen 300 can be prevented from being damaged by external force during the extrusion test, thereby improving the test accuracy. Sex.
  • the first base 240 and the second base 250 may be bases having a programmable control of the drive motor, disposed on the fixed bracket 210, and movable relative to the fixed bracket 210.
  • the fixing bracket 210 is a hollow box or the like.
  • the first base 240 and the second base 250 are respectively disposed at the bottom end and the top end of the fixing bracket 210, and specifically, may be inside the fixing bracket 210.
  • the bottom end and the top end are provided with slidable rails, and the first base 240 and the second base 250 are moved relative to the fixed bracket 210 by the slidable rails.
  • the first base 240 and the second base 250 are respectively connected to the other ends of the first pull rod 220 and the second pull rod 230 for controlling the extension length of the first pull rod 220 and the second pull rod 230 along the connecting direction of the two connecting ends.
  • the flexible screen 300 is squeezed or moved in a mutually parallel direction to press the flexible screen 300.
  • the flexible screen 300 is pressed along the connecting direction of the two connecting ends to bend the flexible screen 300, and the flexible screen has a U-shaped curved shape.
  • the connecting directions of the two connecting ends are It is in the vertical direction.
  • the first pedestal 240 and the second pedestal 250 control the elongate lengths of the first pull rod 220 and the second pull rod 230, and press the flexible screen 300 by a predetermined amplitude along a connecting direction of the two connecting ends a predetermined number of times, a predetermined range The number is more than one.
  • the predetermined amplitude is determined by the extension length of the first tie rod 220 and the second pull rod 230.
  • the flexible screen 300 is pressed at different predetermined amplitudes, which is more in line with the actual use environment of the flexible screen 300, and the test accuracy can be improved.
  • the first base 240 and the second base 250 control the elongated lengths of the first pull rod 220 and the second pull rod 230, respectively moving the extruded flexible screen 300 in mutually parallel directions.
  • the flexible screen 300 may be pressed in a horizontal direction, a vertical direction, or other directions to bend the flexible screen 300.
  • the flexible screen 300 has a U-shaped curved shape; when the pressing direction is different from the connecting direction of the two connecting ends, the flexible screen 300 has an "S" shape. Curved.
  • the flexible screen 300 is squeezed to have different curved shapes, and the simulation degree of the actual use environment of the flexible screen 300 can also be improved, thereby further improving the test accuracy.
  • the first pedestal 240 and the second pedestal 250 control the elongate lengths of the first pull rod 220 and the second pull rod 230, respectively, after moving the squeezing flexible screen 300 in a first direction parallel to each other, A susceptor 240 and a second pedestal 250 respectively move the squeezing flexible screen 300 in a second direction that is parallel to each other.
  • the first direction is perpendicular to the second direction, and when the flexible screen 300 is squeezed, the operation is simplified and the efficiency is improved. It can be understood that the first direction and the second direction are not unique.
  • the first direction and the second direction are different from the connection directions of the two connection ends.
  • the first direction is a vertical direction and the second direction is a horizontal direction.
  • the first pedestal 240 and the second pedestal 250 control the elongate lengths of the first and second struts 220 and 230, and move the squeezing flexible screen 300 in the first direction, the flexible screen 300 is curved in an "S" shape.
  • the first base 240 and the second base 250 may be moved relative to the fixed bracket 210 while the flexible screen 300 is in the first direction, and the flexible screen 300 may be moved in the second direction; or may be flexible
  • the first base 240 and the second base 250 are moved relative to the fixed bracket 210, and then moved in the second direction to press the flexible screen 300, the initial state is Refers to the state before the flexible screen 300 is subjected to the extrusion test. If it is the former, it is along the other when the flexible screen 300 is curved in an "S" shape.
  • the direction is pressed to change the bending radius of the flexible screen 300; if the latter is, the flexible screen 300 is pressed in one direction to be bent into an "S" shape and restored to the initial state, and then pressed in the other direction.
  • the flexible screen 300 is again bent into an "S" shape. In either case, the diversity of the flexible screen 300 is increased, and the actual use environment of the flexible screen 300 is more satisfied, and the test accuracy is improved.
  • 3A to 3C are schematic views showing the pressing in the second direction when the flexible screen 300 is bent in the "S" shape in the first direction.
  • first pedestal 240 and the second pedestal 250 control the extension lengths of the first pull rod 220 and the second pull rod 230, respectively, after moving the flexible screen 300 in the first direction parallel to each other for a first predetermined number of times,
  • the first pedestal 240 and the second pedestal 250 respectively move the squeezing flexible screen 300 a second predetermined number of times in a second direction parallel to each other.
  • the flexible screen 300 is pressed a plurality of times in both the first direction and the second direction, more in line with the actual use environment of the flexible screen 300.
  • the number of preset amplitudes is plural and/or the number of set amplitudes is plural.
  • the preset amplitude and the set amplitude are both exemplified.
  • the preset amplitude includes amplitude A, amplitude B, and amplitude C.
  • the set amplitude includes amplitude a, amplitude b, and amplitude c, if all preset amplitudes are Corresponding to the plurality of set amplitudes, after the first preset number of times of pressing the flexible screen 300 by the amplitude A in the first direction, at least two of the amplitude a, the amplitude b and the amplitude c in the second direction respectively.
  • the flexible screen 300 is squeezed a second predetermined number of times. The situation in which the flexible screen 300 is pressed in the second direction after the first predetermined number of times the flexible screen 300 is pressed at the amplitude B and the amplitude C in the first direction is similar.
  • the preset amplitude is determined by the length of extension of the first pull rod 220 and the second pull rod 230, and the set amplitude is determined by the moving distance of the first base 240 and the second base 250. It can be understood that the preset amplitude, the set amplitude, the first preset number of times, and the second preset number can also be adjusted according to actual conditions.
  • the flexible screen 300 is pressed at different amplitudes in both the first direction and the second direction, which is also more in line with the actual use environment of the flexible screen 300, and the test accuracy can be improved.
  • the first base 240 and the second base 250 control the extension lengths of the first pull rod 220 and the second pull rod 230, and are respectively squeezed at a predetermined amplitude along the connecting direction of the two connecting ends.
  • the flexible screen 300 is pressed a predetermined number of times to make the flexible screen 300 curved in a "U" shape.
  • the flexible screen 300 is pressed for a first predetermined number of times in a first direction by a predetermined amplitude, so that the flexible screen 300 is curved in an "S" shape.
  • the flexible screen 300 is pressed for a second predetermined number of times in a second direction with a set amplitude.
  • the fixing device connects the flexible screen 300 to form two connecting ends.
  • the squeezing device 200 moves the fixing device such that the distance between the connecting ends of the fixing device changes and is less than or equal to the length between the two connecting ends of the flexible screen 300, and the flexible screen 300 is subjected to a squeezing test.
  • the flexible screen 300 is subjected to a squeeze test by a mobile fixture to simulate the use environment of the flexible screen 300, which reduces the test cost compared to the conventional flexible screen bending device.
  • the flexible screen bending test system can further include a detection device for performing performance detection on the flexible screen 300.
  • the detection device performs 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 performance detection includes detecting mechanical reliability, optical reliability, and electrical reliability
  • 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 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 during the extrusion test or after performing the 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 an electrical reliability test during the extrusion test or after the extrusion test to detect the conductivity of 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 300, and the electrical parameter test is performed to evaluate the change of the electrical parameters before and after the bending.

Abstract

一种柔性屏幕弯曲测试方法及系统，将柔性屏幕（300）连接于固定装置形成两个连接端。对柔性屏幕（300）进行挤压测试，包括移动固定装置，使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕（300）在两个连接端之间的长度。通过移动固定装置对柔性屏幕（300）进行挤压测试，模拟柔性屏幕（300）的使用环境，与传统的柔性屏幕弯曲测试方法及装置相比，降低了测试成本。

Description

柔性屏幕弯曲测试方法及系统 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及系统。
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，在对柔性屏幕进行挤压弯曲测试后，检测柔性屏幕的弯曲性能。
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。若是利用一个滚筒传输柔性屏幕，则需要相应部件挤压住柔性屏幕，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，存在测试成本高的缺点。
发明内容
基于此，有必要提供一种测试成本低的柔性屏幕弯曲测试方法及系统。
一种柔性屏幕弯曲测试方法，包括以下步骤：将柔性屏幕连接于固定装置形成两个连接端；对所述柔性屏幕进行挤压测试，包括移动所述固定装置，使所述固定装置的连接端之间的距离发生变化并小于等于所述柔性屏幕在所述两个连接端之间的长度。
在其中一个实施例中，对所述柔性屏幕进行挤压测试包括：
沿所述两个连接端的连线方向挤压所述柔性屏幕；或
分别沿相互平行的方向移动所述固定装置挤压所述柔性屏幕。
在其中一个实施例中，所述沿所述两个连接端的连线方向挤压所述柔性屏幕的步骤包括：沿所述两个连接端的连线方向以预定幅度移动所述固定装置，挤压所述柔性屏幕预定次数，所述预定幅度的数量为多个。
在其中一个实施例中，所述分别沿相互平行的方向移动所述固定装置挤压所述柔性屏幕的步骤包括：
先分别沿相互平行的第一方向移动所述固定装置挤压所述柔性屏幕后再分别沿相互平行的第二方向移动所述固定装置挤压所述柔性屏幕，所述第一方向与第二方向垂直。
在其中一个实施例中，对所述柔性屏幕进行挤压测试包括，分别在沿第一方向以一预设幅度移动所述固定装置挤压所述柔性屏幕第一预设次数后，沿第二方向以设定幅度移动所述固定装置挤压所述柔性屏幕第二预设次数。
在其中一个实施例中，所述预设幅度的数量为多个和/或所述设定幅度的数量为多个。
在其中一个实施例中，所述两个连接端分别位于所述柔性屏幕的相对两侧，并且所述两个连接端的连线垂直于所述柔性屏幕的侧边。
一种柔性屏幕弯曲测试系统，包括：
固定装置，用于连接柔性屏幕形成两个连接端；以及
挤压装置，用于移动所述固定装置，使所述固定装置的连接端之间的距离发生变化并小于等于所述柔性屏幕在所述两个连接端之间的长度对所述柔性屏幕进行挤压测试。
在其中一个实施例中，所述固定装置包括第一夹具和第二夹具，分别用于连接所述柔性屏幕的相对两侧形成两个连接端。
在其中一个实施例中，所述挤压装置包括：
固定支架；
可伸缩的第一拉杆和第二拉杆，所述第一拉杆和第二拉杆的一端分别连接所述第一夹具和第二夹具；
第一基座和第二基座，所述第一基座和第二基座设置于所述固定支架且可 相对于所述固定支架移动、分别连接所述第一拉杆和第二拉杆的另一端，用于控制所述第一拉杆和第二拉杆的伸长长度沿所述两个连接端的连线方向挤压所述柔性屏幕或分别沿相互平行的方向移动挤压所述柔性屏幕。
在其中一个实施例中，所述第一夹具和第二夹具分别与所述第一拉杆和第二拉杆活动连接。
上述柔性屏幕弯曲测试方法及系统，将柔性屏幕连接于固定装置形成两个连接端。移动固定装置使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕在两个连接端之间的长度，对柔性屏幕进行挤压测试。通过移动固定装置对柔性屏幕进行挤压测试，模拟柔性屏幕的使用环境，与传统的柔性屏幕弯曲测试方法及装置相比，降低了测试成本。
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2A至图2C为一实施例中柔性屏幕弯曲测试系统的工作示意图；
图3A至图3C为另一实施例中柔性屏幕弯曲测试系统的工作示意图。
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：将柔性屏幕连接于固定装置形成两个连接端。
将柔性屏幕与固定装置连接，可以是点连接、线连接或面连接，对应地，在固定装置形成的两个连接端可以是连接点、连接线或连接面。
本实施例中两个连接端分别位于柔性屏幕的相对两侧，并且两个连接端的连线垂直于柔性屏幕的侧边。在对柔性屏幕进行挤压测试时，可确保柔性屏幕在连接端的连线两侧的部分受力均匀，提高挤压测试效率，还可避免柔性屏幕因受力不均而损坏。
步骤S120：对柔性屏幕进行挤压测试。
包括移动固定装置，使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕在两个连接端之间的长度。对柔性屏幕进行挤压测试，模拟柔性屏幕的实际使用环境。
在其中一个实施例中，对柔性屏幕进行挤压测试为：沿两个连接端的连线方向挤压柔性屏幕；或分别沿相互平行的方向移动固定装置挤压柔性屏幕。
沿两个连接端的连线方向挤压柔性屏幕，使柔性屏幕弯曲，可以想象此时柔性屏幕呈“U”形弯曲状。进一步地，沿两个连接端的连线方向挤压柔性屏幕的步骤包括：沿两个连接端的连线方向以预定幅度移动固定装置，挤压柔性屏幕预定次数，预定幅度的数量为多个。即是本实施例中以不同的预定幅度移动固定装置，挤压柔性屏幕，更加符合柔性屏幕的实际使用环境，可提高测试准确性。
分别沿相互平行的方向移动固定装置挤压柔性屏幕，可以是沿水平方向、竖直方向或其他方向来挤压柔性屏幕，使柔性屏幕弯曲。当挤压方向与两个连接端的连线方向相同时，柔性屏幕呈“U”形弯曲状；当挤压方向与两个连接端的连线方向不相同时，柔性屏幕呈“S”形弯曲状。本实施例中即是对柔性屏幕进行挤压使其处于不同的弯曲形状，同样可提高柔性屏幕的实际使用环境的模拟仿真度，进一步提高测试准确性。
在其中一个实施例中，分别沿相互平行的方向移动固定装置挤压柔性屏幕 的步骤具体可包括：先分别沿相互平行的第一方向移动固定装置挤压柔性屏幕后，再分别沿相互平行的第二方向移动固定装置挤压柔性屏幕。本实施例中第一方向与第二方向垂直，在挤压柔性屏幕时，简化操作、提高效率。可以理解，第一方向和第二方向并不唯一。
以第一方向和第二方向均与两个连接端的连线方向不同为例，当沿第一方向移动固定装置挤压柔性屏幕时，柔性屏幕呈“S”形弯曲状。可以是在柔性屏幕处于沿第一方向被挤压状态下，沿第二方向移动固定装置挤压柔性屏幕；也可以是柔性屏幕在沿第一方向被挤压并恢复至初始状态后，再沿第二方向移动固定装置挤压柔性屏幕，初始状态即指柔性屏幕进行挤压测试前的状态。若是前者，则是在柔性屏幕呈“S”形弯曲状时再沿另一方向进行挤压，改变柔性屏幕的弯曲半径；若是后者，则是在沿一方向挤压柔性屏幕使其弯曲成“S”形并恢复至初始状态后，再沿另一方向挤压柔性屏幕使其再次弯曲成“S”形。无论是以上哪一种情况，均是增加了柔性屏幕挤压方式的多样性，更符合柔性屏幕的实际使用环境，提高测试准确性。
进一步地，对柔性屏幕进行挤压测试可以是，分别在沿第一方向以一预设幅度移动固定装置挤压柔性屏幕第一预设次数后，沿第二方向以一设定幅度移动固定装置挤压柔性屏幕第二预设次数。对柔性屏幕沿第一方向和第二方向均进行多次挤压，更符合柔性屏幕的实际使用环境。
更近一步地，预设幅度的数量为多个和/或设定幅度的数量为多个。以预设幅度和设定幅度的数量均为多个进行举例说明，预设幅度包括幅度A、幅度B和幅度C，设定幅度包括幅度a、幅度b和幅度c，若是全部预设幅度均对应多个设定幅度，则是在沿第一方向以幅度A挤压柔性屏幕第一预设次数后，沿第二方向分别以幅度a、幅度b和幅度c中的至少两种，来挤压柔性屏幕第二预设次数。在沿第一方向以幅度B和幅度C挤压柔性屏幕第一预设次数后，沿第二方向挤压柔性屏幕的情况类似。在第一方向和第二方向均以不同的幅度来挤压柔性屏幕，同样更加符合柔性屏幕的实际使用环境，可提高测试准确性。
在一个较为具体的实施例中，对柔性屏幕进行挤压测试为，沿两个连接端的连线方向分别以一预定幅度移动固定装置，挤压柔性屏幕预定次数，使柔性 屏幕呈“U”形弯曲状。沿第一方向分别以一预设幅度移动固定装置挤压柔性屏幕第一预设次数，使柔性屏幕呈“S”形弯曲状。沿第二方向分别以一设定幅度移动固定装置挤压柔性屏幕第二预设次数。
上述柔性屏幕弯曲测试方法，将柔性屏幕连接于固定装置形成两个连接端。对柔性屏幕进行挤压测试，包括移动固定装置，使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕在两个连接端之间的长度。通过移动固定装置对柔性屏幕进行挤压测试，模拟柔性屏幕的使用环境，与传统的柔性屏幕弯曲测试方法相比，降低了测试成本。
在其中一个实施例中，步骤S120之后还可包括以下步骤：
对柔性屏幕进行性能检测。
对柔性屏幕进行性能检测具体可包括：在对柔性屏幕进行挤压测试后，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。
对柔性屏幕进行性能检测还可包括：在对柔性屏幕进行挤压测试时，或对柔性屏幕进行挤压测试后，检测柔性屏幕的光学可靠性和/或电学可靠性。
以同时包括光学检测和电学检测为例进行解释说明，光学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，对柔性屏幕进行的性能检测，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。
本发明还提供了一种柔性屏幕弯曲测试系统，如图2A所示，包括固定装置和挤压装置200(固定装置附图中未图示)。
固定装置用于连接柔性屏幕300形成两个连接端。
固定装置与柔性屏幕300连接，可以是点连接、线连接或面连接，对应地， 在固定装置形成的两个连接端可以是连接点、连接线或连接面。
固定装置具体可包括第一夹具和第二夹具，分别用于连接柔性屏幕300的相对两侧形成两个连接端。本实施例中两个连接端的连线垂直于柔性屏幕300的侧边。在对柔性屏幕300进行挤压测试时，可确保柔性屏幕300在连接端的连线两侧的部分受力均匀，提高挤压测试效率，还可避免柔性屏幕300因受力不均而损坏。
挤压装置200用于对柔性屏幕300进行挤压测试，通过移动固定装置使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕300在两个连接端之间的长度对柔性屏幕300进行挤压测试，模拟柔性屏幕300的实际使用环境。
在其中一个实施例中，挤压装置200具体可包括固定支架210、可伸缩的第一拉杆220和第二拉杆230，以及第一基座240和第二基座250。
第一拉杆220和第二拉杆230的一端分别连接第一夹具和第二夹具。第一夹具和第二夹具与第一拉杆220和第二拉杆230可以是固定连接，如焊接或螺纹连接，也可以是活动连接，如通过可沿固定轴转动的转动连接器件连接。本实施例中第一夹具和第二夹具与第一拉杆220和第二拉杆230活动连接，使柔性屏幕300可自由转动，在进行挤压测试时可避免因外力损坏柔性屏幕300，提高测试准确性。
第一基座240和第二基座250可以是具有可编程控制的传动马达功能的基座，设置于固定支架210、且可相对于固定支架210移动。
本实施例中固定支架210为中空的箱体或类似机构，第一基座240和第二基座250分别设置于固定支架210内部的底端和顶端，具体地，可以在固定支架210内部的底端和顶端开设可滑动导轨，第一基座240和第二基座250通过可滑动导轨相对于固定支架210移动。
可以理解，固定支架210的具体结构，以及第一基座240和第二基座250设置在固定支架210的具体位置并不是唯一的。
第一基座240和第二基座250分别连接第一拉杆220和第二拉杆230的另一端，用于控制第一拉杆220和第二拉杆230的伸长长度沿两个连接端的连线方向挤压柔性屏幕300或分别沿相互平行的方向移动挤压柔性屏幕300。
如图2A至图2C所示，沿两个连接端的连线方向挤压柔性屏幕300，使柔性屏幕300弯曲，柔性屏幕呈“U”形弯曲状，本实施例中两个连接端的连线方向为竖直方向。进一步地，第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，沿两个连接端的连线方向以预定幅度挤压柔性屏幕300预定次数，预定幅度的数量为多个。预定幅度由第一拉杆220和第二拉杆230的伸长长度决定，本实施例中以不同的预定幅度挤压柔性屏幕300，更加符合柔性屏幕300的实际使用环境，可提高测试准确性。
第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，分别沿相互平行的方向移动挤压柔性屏幕300。可以是沿水平方向、竖直方向或其他方向来挤压柔性屏幕300，使柔性屏幕300弯曲。当挤压方向与两个连接端的连线方向相同时，柔性屏幕300呈“U”形弯曲状；当挤压方向与两个连接端的连线方向不相同时，柔性屏幕300呈“S”形弯曲状。本实施例中即是对柔性屏幕300进行挤压使其处于不同的弯曲形状，同样可提高柔性屏幕300的实际使用环境的模拟仿真度，进一步提高测试准确性。
在其中一个实施例中，第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，分别沿相互平行的第一方向移动挤压柔性屏幕300后，第一基座240和第二基座250分别沿相互平行的第二方向移动挤压柔性屏幕300。本实施例中第一方向与第二方向垂直，在挤压柔性屏幕300时，简化操作、提高效率。可以理解，第一方向和第二方向并不唯一。
以第一方向和第二方向均与两个连接端的连线方向不同为例，如图3A至图3C所示，第一方向为竖直方向，第二方向为水平方向。当第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，沿第一方向移动挤压柔性屏幕300时，柔性屏幕300呈“S”形弯曲状。可以是在柔性屏幕300处于沿第一方向被挤压状态下，第一基座240和第二基座250相对于固定支架210移动，沿第二方向移动挤压柔性屏幕300；也可以是柔性屏幕300在沿第一方向被挤压并恢复至初始状态后，第一基座240和第二基座250相对于固定支架210移动，再沿第二方向移动挤压柔性屏幕300，初始状态即指柔性屏幕300进行挤压测试前的状态。若是前者，则是在柔性屏幕300呈“S”形弯曲状时再沿另一 方向进行挤压，改变柔性屏幕300的弯曲半径；若是后者，则是在沿一方向挤压柔性屏幕300使其弯曲成“S”形并恢复至初始状态后，再沿另一方向挤压柔性屏幕300使其再次弯曲成“S”形。无论是以上哪一种情况，均是增加了柔性屏幕300挤压方式的多样性，更符合柔性屏幕300的实际使用环境，提高测试准确性。图3A至图3C所示为在柔性屏幕300沿第一方向呈“S”形弯曲状时，再沿第二方向进行挤压的示意图。
进一步地，第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，分别沿相互平行的第一方向移动挤压柔性屏幕300第一预设次数后，第一基座240和第二基座250分别沿相互平行的第二方向移动挤压柔性屏幕300第二预设次数。对柔性屏幕300沿第一方向和第二方向均进行多次挤压，更符合柔性屏幕300的实际使用环境。
更近一步地，预设幅度的数量为多个和/或设定幅度的数量为多个。以预设幅度和设定幅度的数量均为多个进行举例说明，预设幅度包括幅度A、幅度B和幅度C，设定幅度包括幅度a、幅度b和幅度c，若是全部预设幅度均对应多个设定幅度，则是在沿第一方向以幅度A挤压柔性屏幕300第一预设次数后，沿第二方向分别以幅度a、幅度b和幅度c中的至少两种，来挤压柔性屏幕300第二预设次数。在沿第一方向以幅度B和幅度C挤压柔性屏幕300第一预设次数后，沿第二方向挤压柔性屏幕300的情况类似。
预设幅度由第一拉杆220和第二拉杆230的伸长长度决定，设定幅度由第一基座240和第二基座250的移动距离决定。可以理解，预设幅度、设定幅度、第一预设次数和第二预设次数也可根据实际情况进行调整。在第一方向和第二方向均以不同的幅度来挤压柔性屏幕300，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，第一基座240和第二基座250控制第一拉杆220和第二拉杆230的伸长长度，先沿两个连接端的连线方向分别以一预定幅度挤压柔性屏幕300预定次数，使柔性屏幕300呈“U”形弯曲状。沿第一方向分别以一预设幅度挤压柔性屏幕300第一预设次数，使柔性屏幕300呈“S”形弯曲状。沿第二方向分别以一设定幅度挤压柔性屏幕300第二预设次数。
上述柔性屏幕弯曲测试系统，固定装置连接柔性屏幕300形成两个连接端。挤压装置200移动固定装置，使固定装置的连接端之间的距离发生变化并小于等于柔性屏幕300在两个连接端之间的长度，对柔性屏幕300进行挤压测试。通过移动固定装置对柔性屏幕300进行挤压测试，模拟柔性屏幕300的使用环境，与传统的柔性屏幕弯曲装置相比，降低了测试成本。
在其中一个实施例中，柔性屏幕弯曲测试系统还可包括检测装置，检测装置用于对柔性屏幕300进行性能检测。
检测装置对柔性屏幕300进行性能检测，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挤压测试时，或进行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挤压测试时，或进行挤压测试后进行电学可靠性测试，检测柔性屏幕300的导通率。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300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。
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 (11)

  1. 一种柔性屏幕弯曲测试方法，其特征在于，包括以下步骤：
    将柔性屏幕连接于固定装置形成两个连接端；以及
    对所述柔性屏幕进行挤压测试，包括：移动所述固定装置，使所述固定装置的连接端之间的距离发生变化并小于等于所述柔性屏幕在所述两个连接端之间的长度。
  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，对所述柔性屏幕进行挤压测试的步骤包括：
    沿所述两个连接端的连线方向挤压所述柔性屏幕；或
    分别沿相互平行的方向移动所述固定装置挤压所述柔性屏幕。
  3. 根据权利要求2所述的柔性屏幕弯曲测试方法，其特征在于，沿所述两个连接端的连线方向挤压所述柔性屏幕的步骤包括：沿所述两个连接端的连线方向以预定幅度移动所述固定装置，挤压所述柔性屏幕预定次数，所述预定幅度的数量为多个。
  4. 根据权利要求2所述的柔性屏幕弯曲测试方法，其特征在于，分别沿相互平行的方向移动所述固定装置挤压所述柔性屏幕的步骤包括：
    先分别沿相互平行的第一方向移动所述固定装置挤压所述柔性屏幕后，再分别沿相互平行的第二方向移动所述固定装置挤压所述柔性屏幕，所述第一方向与第二方向垂直。
  5. 根据权利要求4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挤压测试的步骤包括，分别在沿第一方向以一预设幅度移动所述固定装置挤压所述柔性屏幕第一预设次数后，沿第二方向以一设定幅度移动所述固定装置挤压所述柔性屏幕第二预设次数。
  6. 根据权利要求5所述的柔性屏幕弯曲测试方法，其特征在于，所述预设幅度的数量为多个和/或所述设定幅度的数量为多个。
  7. 根据权利要求1至6中任意一项所述的柔性屏幕弯曲测试方法，其特征在于，所述两个连接端分别位于所述柔性屏幕的相对两侧，并且所述两个连接 端的连线垂直于所述柔性屏幕的侧边。
  8. 一种柔性屏幕弯曲测试系统，其特征在于，包括：
    固定装置，用于连接柔性屏幕形成两个连接端；以及
    挤压装置，用于移动所述固定装置，使所述固定装置的连接端之间的距离发生变化并小于等于所述柔性屏幕在所述两个连接端之间的长度对所述柔性屏幕进行挤压测试。
  9. 根据权利要求8所述的柔性屏幕弯曲测试系统，其特征在于，所述固定装置包括第一夹具和第二夹具，分别用于连接所述柔性屏幕的相对两侧形成两个连接端。
  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，所述挤压装置包括：
    固定支架；
    可伸缩的第一拉杆和第二拉杆，所述第一拉杆和第二拉杆的一端分别连接所述第一夹具和第二夹具；
    第一基座和第二基座，所述第一基座和第二基座设置于所述固定支架且可相对于所述固定支架移动、分别连接所述第一拉杆和第二拉杆的另一端，用于控制所述第一拉杆和第二拉杆的伸长长度沿所述两个连接端的连线方向挤压所述柔性屏幕或分别沿相互平行的方向移动挤压所述柔性屏幕。
  11. 根据权利要求9或10所述的柔性屏幕弯曲测试系统，其特征在于，所述第一夹具和第二夹具分别与所述第一拉杆和第二拉杆活动连接。
PCT/CN2014/094112 2013-12-18 2014-12-17 柔性屏幕弯曲测试方法及系统 WO2015090207A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020167019017A KR101794643B1 (ko) 2013-12-18 2014-12-17 유연 스크린의 굽힘 테스트를 위한 방법 및 시스템
EP14870875.3A EP3086107B1 (en) 2013-12-18 2014-12-17 Flexible screen bend test method and system
JP2016541044A JP6449890B2 (ja) 2013-12-18 2014-12-17 フレキシブルスクリーンの曲げ試験方法及び曲げ試験システム
US15/105,963 US10054527B2 (en) 2013-12-18 2014-12-17 Method and system for bending test of flexible screen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310698549.8 2013-12-18
CN201310698549.8A CN104729929B (zh) 2013-12-18 2013-12-18 柔性屏幕弯曲方法及系统

Publications (1)

Publication Number Publication Date
WO2015090207A1 true WO2015090207A1 (zh) 2015-06-25

Family

ID=53402114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/094112 WO2015090207A1 (zh) 2013-12-18 2014-12-17 柔性屏幕弯曲测试方法及系统

Country Status (7)

Country Link
US (1) US10054527B2 (zh)
EP (1) EP3086107B1 (zh)
JP (1) JP6449890B2 (zh)
KR (1) KR101794643B1 (zh)
CN (1) CN104729929B (zh)
TW (1) TW201525435A (zh)
WO (1) WO2015090207A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110549350A (zh) * 2019-09-12 2019-12-10 北京玛尔斯精密设备有限公司 基于scara机器人的一种柔性材料的三自由度弯折测试设备

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106918733B (zh) * 2015-12-24 2019-10-11 昆山工研院新型平板显示技术中心有限公司 柔性信赖性测试治具及柔性信赖性在线测试设备
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
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
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
CN108877608A (zh) * 2018-06-29 2018-11-23 武汉华星光电半导体显示技术有限公司 柔性显示面板、弯折测试治具及弯折测试系统
CN109100238A (zh) * 2018-09-06 2018-12-28 南京林业大学 一种竹材柔韧性测试方法
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
CN109490117B (zh) * 2018-12-17 2021-07-16 Oppo广东移动通信有限公司 柔性屏测试治具
CN109805672B (zh) * 2019-03-25 2021-03-09 云谷（固安）科技有限公司 一种展架
CN110095338B (zh) * 2019-05-13 2022-02-22 京东方科技集团股份有限公司 测试治具
CN110031204B (zh) * 2019-05-16 2024-03-08 昆山丘钛微电子科技有限公司 抗疲劳测试治具
CN110398424A (zh) * 2019-07-19 2019-11-01 四川旭虹光电科技有限公司 用于测试柔性待测物的抗折弯强度的装置和方法
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
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
CN117871300A (zh) * 2024-03-08 2024-04-12 荣耀终端有限公司 弯曲测试设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776050B2 (en) * 2001-09-28 2004-08-17 Osrano Opto Semiconductors Gmbh Support for bending test of flexible substrates
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
US7181979B1 (en) * 2005-10-03 2007-02-27 Industrial Technology Research Institute Method and system for inspecting flexible device
CN200975965Y (zh) * 2006-12-02 2007-11-14 比亚迪股份有限公司 一种柔性印刷线路板弯折机
CN101295219A (zh) * 2007-04-27 2008-10-29 汤姆森许可贸易公司 柔性屏幕弯曲检测方法和配备实施该方法屏幕的设备
CN101726442A (zh) * 2008-10-24 2010-06-09 中国科学院金属研究所 柔性电子基板上薄膜材料可靠性原位评价系统及方法
CN102809513A (zh) * 2011-05-30 2012-12-05 友达光电股份有限公司 可卷绕式显示器测试装置及方法
CN102980815A (zh) * 2011-09-07 2013-03-20 汤浅系统机器株式会社 面状体的弯卷试验装置

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6244239U (zh) 1985-09-05 1987-03-17
JPH03200047A (ja) * 1989-12-28 1991-09-02 Fujikura Ltd フレキシブルプリント配線板の屈曲試験装置
US5616848A (en) * 1995-03-20 1997-04-01 Chrysler Corporation Plate testing apparatus and method of testing
JPH09281023A (ja) * 1996-04-16 1997-10-31 Nippon Steel Corp Ｕ字曲げ疲労試験機
JPH1172422A (ja) * 1997-08-28 1999-03-16 Shimadzu Corp 材料試験機
JP2004279083A (ja) * 2003-03-13 2004-10-07 Toray Ind Inc Ｆｒｐの曲げ試験方法
JP4238774B2 (ja) * 2004-04-28 2009-03-18 パナソニック株式会社 曲げ試験装置および曲げ試験方法
KR100672059B1 (ko) * 2004-12-27 2007-01-22 삼성전자주식회사 3축 굽힘 실험용 지그
KR20060089295A (ko) 2005-02-03 2006-08-09 현대자동차주식회사 박판시편용 좌굴방지 가이드를 구비한 피로시험기
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
CN101581573B (zh) * 2008-05-12 2012-06-27 财团法人工业技术研究院 软性元件挠曲特性的检测方法及其系统
WO2010138748A2 (en) * 2009-05-29 2010-12-02 Arizona Technology Enterprises Display bender and method of testing flexible display
KR101295887B1 (ko) * 2010-04-13 2013-08-12 한국전자통신연구원 플렉서블 소자의 벤딩 테스트 설비
KR101171837B1 (ko) 2010-10-04 2012-08-14 강원대학교산학협력단 유연소재의 시험장치
KR101774302B1 (ko) * 2011-05-13 2017-09-05 한국전자통신연구원 유연 기판의 벤딩 테스트 장치
TWI482944B (zh) 2011-11-08 2015-05-01 Acer Inc 電路板曲度偵測裝置以及方法
CN202383033U (zh) * 2011-12-14 2012-08-15 东莞市信测科技有限公司 挠曲测试装置
JP2013148577A (ja) * 2011-12-19 2013-08-01 Nippon Steel & Sumikin Chemical Co Ltd フレキシブル回路基板の耐屈曲性試験装置および方法
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
CN102818732B (zh) * 2012-07-26 2015-02-04 江苏大学 弹性材料后屈曲形变参数和弹性模量同时测定方法及装置
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
CN103149044B (zh) 2013-02-22 2015-12-23 南京邮电大学 一种柔性器件机械性能测试装置
US9176039B2 (en) * 2013-02-28 2015-11-03 The Boeing Company Method and systems for determining hydrogen embrittlement
KR102026690B1 (ko) * 2013-05-08 2019-10-01 삼성디스플레이 주식회사 기판 평가 장치, 및 이를 이용한 기판 평가 방법
KR102124403B1 (ko) * 2013-08-02 2020-06-19 삼성디스플레이 주식회사 플렉서블 디바이스의 테스트 장치
US10094752B2 (en) * 2014-10-11 2018-10-09 Yuasa System Co., Ltd. Folding test machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776050B2 (en) * 2001-09-28 2004-08-17 Osrano Opto Semiconductors Gmbh Support for bending test of flexible substrates
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
US7181979B1 (en) * 2005-10-03 2007-02-27 Industrial Technology Research Institute Method and system for inspecting flexible device
CN200975965Y (zh) * 2006-12-02 2007-11-14 比亚迪股份有限公司 一种柔性印刷线路板弯折机
CN101295219A (zh) * 2007-04-27 2008-10-29 汤姆森许可贸易公司 柔性屏幕弯曲检测方法和配备实施该方法屏幕的设备
CN101726442A (zh) * 2008-10-24 2010-06-09 中国科学院金属研究所 柔性电子基板上薄膜材料可靠性原位评价系统及方法
CN102809513A (zh) * 2011-05-30 2012-12-05 友达光电股份有限公司 可卷绕式显示器测试装置及方法
CN102980815A (zh) * 2011-09-07 2013-03-20 汤浅系统机器株式会社 面状体的弯卷试验装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110549350A (zh) * 2019-09-12 2019-12-10 北京玛尔斯精密设备有限公司 基于scara机器人的一种柔性材料的三自由度弯折测试设备
CN110549350B (zh) * 2019-09-12 2024-03-19 玛尔斯检测技术(苏州)有限公司 基于scara机器人的一种柔性材料的三自由度弯折测试设备

Also Published As

Publication number Publication date
TWI563247B (zh) 2016-12-21
KR101794643B1 (ko) 2017-11-07
US20170102301A1 (en) 2017-04-13
EP3086107A4 (en) 2017-08-16
JP6449890B2 (ja) 2019-01-09
EP3086107B1 (en) 2020-07-22
CN104729929B (zh) 2017-12-05
JP2016540991A (ja) 2016-12-28
KR20160100342A (ko) 2016-08-23
CN104729929A (zh) 2015-06-24
EP3086107A1 (en) 2016-10-26
TW201525435A (zh) 2015-07-01
US10054527B2 (en) 2018-08-21

Similar Documents

Publication Publication Date Title
WO2015090207A1 (zh) 柔性屏幕弯曲测试方法及系统
TWI558992B (zh) Flexible screen bending test methods and systems
KR102242519B1 (ko) 플렉서블 디바이스의 테스트 장치
CN203465158U (zh) 一种双立柱拉力试验机
CN106226508B (zh) 一种用于橡胶溶胀特性测试的拉伸装置及测试方法
KR102041525B1 (ko) 연신 성능 시험장치
CN204116003U (zh) 多振动单元致冷件抗振测试装置
CN108896395B (zh) 夹层结构弯曲性能和疲劳度试验装置
CN103969109A (zh) 用于推拉力试验装置的样件万能固定装置
CN206339453U (zh) 一种柔性基板检测装置
JP5064866B2 (ja) 表面検査装置及び表面検査方法
CN210571731U (zh) 一种用于聚酰亚胺膜的检测设备
CN105021851B (zh) 立式飞针测试机夹具及其设计方法
CN105806717B (zh) 一种动态切割检测装置及检测方法
CN209707242U (zh) 一种塑料扎带条抗拉力试验检测装置
CN210005485U (zh) 一种钢管无损检测装置
KR101783856B1 (ko) 커넥터 비틀림 삽입력 시험장치
CN205120503U (zh) 钓竿强度测试装置
CN206863064U (zh) 显示屏测试治具
CN211292737U (zh) 一种超声波检测设备
CN102980804A (zh) 一种链索夹持器试验台
CN203350109U (zh) 一种g+g电容式触摸屏拉力测试设备
CN207894740U (zh) 一种软管拉伸寿命试验机
CN211954415U (zh) 基于激光测振的变压器振动测量装置
CN209416809U (zh) 一种电缆检测用拉力设备

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: 14870875

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016541044

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 15105963

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: 20167019017

Country of ref document: KR

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2014870875

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2014870875

Country of ref document: EP