WO2019041546A1 - 柔性显示装置弯折测试设备及系统 - Google Patents

柔性显示装置弯折测试设备及系统 Download PDF

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Publication number
WO2019041546A1
WO2019041546A1 PCT/CN2017/109518 CN2017109518W WO2019041546A1 WO 2019041546 A1 WO2019041546 A1 WO 2019041546A1 CN 2017109518 W CN2017109518 W CN 2017109518W WO 2019041546 A1 WO2019041546 A1 WO 2019041546A1
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WO
WIPO (PCT)
Prior art keywords
bending
plate
display device
flexible display
shaft
Prior art date
Application number
PCT/CN2017/109518
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English (en)
French (fr)
Inventor
韩文
马荣
刘纪川
Original Assignee
武汉华星光电半导体显示技术有限公司
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.)
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Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US15/735,311 priority Critical patent/US10557781B2/en
Publication of WO2019041546A1 publication Critical patent/WO2019041546A1/zh

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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
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • 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
    • G01N2203/02—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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film

Definitions

  • the present invention relates to the field of flexible display devices, and more particularly to a flexible display device bending test device and system.
  • LCD LiquidCrystalDisplay
  • PDP PlasmaDisplayPanel
  • plasma display panel OLED (OrganicElectroluminescence Flat panel display technologies, such as Display, organic electroluminescence display, are maturing, and traditional CRT (Cathode RayTube) displays have been largely replaced.
  • the flexible display device refers to a display device in which the display panel is bendable and deformable, and includes various types such as a flexible organic electroluminescence display device, a flexible electrophoretic display device, and a flexible liquid crystal display device.
  • the flexible display device includes at least a flexible display panel and a driving circuit that controls the flexible display panel, wherein the flexible display panel is made of a flexible material that is bendable, so that the flexible display panel is bendable, and the flexible display device Bendable.
  • the flexible display device can be kept in a curled state during storage for convenient carrying; it can be deployed during work and is convenient to operate; and can be hung on the body to be in a wearable state.
  • FIG. 1A is a schematic view of a flexible display device
  • the display screen 10 of the flexible display device is disposed on a surface of the flexible display device
  • a flexible portion 11 is disposed on a side of the flexible display device, the flexible portion 11 can be made of rubber material.
  • the flexible display device is bent inwardly.
  • FIG. 1B the display screen 10 is located in the curved surface, and the folding radius and life of the inner fold can be tested; the flexible display device is bent outward, see
  • FIG. 1C the display screen 10 is located outside the curved surface, and the folding radius and life of the outer folding can be tested.
  • the technical problem to be solved by the present invention is to provide a flexible display device bending test apparatus and system which can be used for flexographic testing of flexible display devices.
  • the present invention provides a flexible display device bending test apparatus, comprising: a bending device comprising a bending shaft, an upper bending plate and a lower fixing plate, wherein the bending shaft is disposed at the Between the upper bending plate and the lower fixing plate, one end of the upper bending plate is fixedly connected with the bending shaft, and the bending shaft rotation can drive the upper bending plate to rotate toward the lower fixing plate
  • the lower fixing plate is fixed on a work table; an upper clamping plate is disposed on the surface of the upper bending plate, the upper clamping plate is slidable along a surface of the upper bending plate, and the upper clamping plate faces away from the upper plate
  • the surface of the bent plate is an upper placement surface of a flexible display device, and a first fixing clip for fixing an upper portion of the flexible display device is disposed on an upper placement surface of the flexible display device; Determining a surface of the fixing plate, the lower clamping plate being slidable along a surface of the lower fixing plate, the surface
  • the present invention also provides a flexible display device bending test apparatus, comprising: a bending device comprising a bending shaft, an upper bending plate and a lower fixing plate, wherein the bending shaft is disposed on the upper bending plate Between the lower fixing plate and the lower fixing plate, one end of the upper bending plate is fixedly connected to the bending shaft, and the bending shaft rotation can drive the upper bending plate to rotate toward the lower fixing plate, the lower
  • the fixing plate is fixed on a work table; an upper plate is disposed on the surface of the upper bending plate, the upper plate is slidable along the surface of the upper bending plate, and the upper plate is away from the upper bending plate
  • the surface is an upper placement surface of a flexible display device, and a first fixing clip for fixing an upper portion of the flexible display device is disposed on an upper placement surface of the flexible display device; a lower clamping plate is disposed on the lower fixing plate a surface, the lower plate is slidable along a surface of the lower fixing plate, and a
  • the testing apparatus further includes a moving mechanism coupled to at least one end of the bending shaft to drive the bending shaft to rotate.
  • the bending shaft and the movement mechanism connection end have a gear
  • the movement mechanism includes a motor and a crank slider mechanism
  • the crank slider mechanism includes a cam and a rack.
  • the motor is coupled to the cam via a drive shaft, the rack being coupled to the cam edge by a connecting rod, the crank slider mechanism converting a rotational motion of the motor output into a linear motion of the rack
  • the rack meshes with a gear of the bending shaft, and linear motion of the rack is converted into a rotational motion of the gear, thereby rotating the bending shaft.
  • the motor is coupled to the drive shaft by a drive belt.
  • a sleeve is sleeved on the bending shaft, and at least one bearing is mounted in the sleeve, so that the sleeve can move synchronously with the flexible display device.
  • the flexible display device bending test apparatus further includes an angle disk disposed on the bending axis and located on a side of the upper bending plate, and the angle disk is disposed on the angle plate Angle scale.
  • At least one of the first load cell and the upper plate and between the second load cell and the lower plate are elastically connected.
  • the surface of the upper bent plate is provided with a first sliding rail
  • the upper clamping plate is provided with a first sliding slot at a position corresponding to the first sliding rail
  • the first sliding slot can be along
  • the first sliding rail slides to enable the upper clamping plate to slide along the surface of the upper bending plate
  • the lower fixing plate surface is provided with a second sliding rail
  • the lower clamping plate corresponds to the second sliding rail
  • a second chute is disposed at the position, and the second chute is slidable along the second sliding rail to enable the lower clamping plate to slide along the surface of the lower fixing plate.
  • the present invention also provides a flexible display device bending test system comprising a plurality of the above flexible display device bending test devices.
  • two adjacent flexible display device bending test devices are driven by a belt disposed on a drive shaft, and a motor is only connected to one of the flexible display device bending test devices, and then through a The drive belt drives all flexible display unit bending test equipment.
  • An advantage of the present invention is to provide an apparatus that can be used for bending test of a flexible display device, which has a simple structure, an operation method, and can intuitively detect bending stress of a flexible display device at different bending angles, and can evaluate the flexible display device. Reliability and other performance.
  • 1A is a schematic view of a flexible display device
  • 1B is a schematic view showing the flexible display device being bent inward
  • 1C is a schematic view showing the flexible display device being bent outward
  • FIG. 2 is a schematic structural view of a bending test apparatus for a flexible display device of the present invention
  • FIG. 3 is a force analysis diagram of a bending test apparatus for a flexible display device of the present invention.
  • Figure 4 is a partial enlarged view of the flexible display device bending test apparatus of the present invention.
  • Figure 5 is a schematic view showing the movement mechanism of the bending test device of the flexible display device of the present invention.
  • FIG. 6 is a schematic structural view of a bending test system for a flexible display device of the present invention.
  • the flexible display device bending test apparatus of the present invention comprises a bending device 20, an upper clamping plate 21, a lower clamping plate 22, a first load cell 23, and a second load cell 24.
  • the bending device 20 includes a bending shaft 201, an upper bending plate 202, and a lower fixing plate 203.
  • the bending shaft 201 is disposed between the upper bent plate 202 and the lower fixing plate 203.
  • the bending shaft 201 is supported by a bracket 31 fixed to the table 30.
  • One end of the upper bent plate 202 is fixedly connected to the bending shaft 201, and the fixed connection may be a detachable fixed connection.
  • the bending shaft 201 is rotatable, and the bending shaft 201 can drive the upper bending plate 202 to rotate toward the lower fixing plate 203.
  • the moving direction of the upper bending plate 202 is indicated by an arrow in FIG. Out.
  • the bending shaft 201 is rotatable by a motion mechanism 25, and the specific structure of the motion mechanism 25 will be described below.
  • the bending shaft 201 is not in contact with the lower fixing plate 203, thereby preventing the lower fixing plate 203 from being rotated by the bending shaft 201.
  • the lower fixing plate 203 is fixed to the table 30, and the lower fixing plate 203 does not rotate or slide.
  • the surface of the upper bending plate 202 is provided with a first sliding rail 2021, and the first sliding rail 2021 may include two rails disposed opposite to the upper bending plate 202.
  • the surface of the lower fixing plate 203 is provided with a second sliding rail 2031, and the second sliding rail 2031 may include two rails disposed opposite to the lower fixing plate 203.
  • the upper cleat 21 is disposed on a surface of the upper bent plate 202.
  • the upper clamping plate 21 is provided with a first sliding slot 211 at a position corresponding to the first sliding rail 2021.
  • the first sliding slot 211 can slide along the first sliding rail 2021 to further slide the upper clamping plate 21 up and down along the surface of the upper bending plate 202.
  • the surface of the upper clamping plate 21 facing away from the upper bending plate 202 is an upper surface of the flexible display device. Further, the first sliding slot 211 is disposed on a surface of the upper clamping plate 21 facing the upper bending plate 202.
  • a first fixing clip 210 for fixing an upper portion of the flexible display device is disposed on an upper surface of the flexible display device, and the first fixing clip 210 may be disposed at two sides of the upper clamping plate 21.
  • the first fixing clip 210 can clamp the upper portion of the flexible display device, thereby realizing the fixing of the flexible display device and the upper clamping plate 21.
  • the flexible display device is relatively stationary with the upper cleat 21 when the upper splint 21 slides up and down relative to the surface of the upper bent plate 202.
  • the lower plate 22 is disposed on the surface of the lower fixing plate 203.
  • the lower clamping plate 22 is provided with a second sliding slot 221 at a position corresponding to the second sliding rail 2031.
  • the second sliding slot 221 can slide along the second sliding rail 2031 to enable the lower clamping plate 22 to slide along the surface of the lower fixing plate 203.
  • the surface of the lower clamping plate 22 facing away from the lower fixing plate 203 is a lower surface of the flexible display device.
  • the second chute 221 is disposed on a surface of the lower plate 22 facing the lower fixing plate 203.
  • a second fixing clip 220 for fixing a lower portion of the flexible display device is disposed on a lower surface of the flexible display device.
  • the second fixing clips 220 may be disposed on both sides of the lower clamping plate 22.
  • the second fixing clip 220 can clamp the lower portion of the flexible display device, thereby realizing the fixing of the flexible display device and the lower clamping plate 22.
  • the lower jaw 22 slides up and down relative to the surface of the lower fixing plate 203, the flexible display device and the lower plate 22 are relatively stationary.
  • the first load cell 23 is disposed at an end of the upper bent plate 202 away from the bending axis 201 and is connected to an end of the upper plate 21 away from the bending axis 201.
  • the second load cell 24 is disposed at an end of the lower fixing plate 203 away from the bending shaft 201 and is connected to an end of the lower plate 22 away from the bending axis 201.
  • Each of the first load cell 23 and the second load cell 24 may be a pressure sensor.
  • FIG. 3 is a force analysis diagram of a bending test apparatus for a flexible display device of the present invention.
  • the upper bending plate 202 when the upper bending plate 202 is rotated by the bending shaft 201, the upper clamping plate 21 moves relative to the upper bending plate 202, and the first load cell 23 is Producing a pulling force F1 toward the bending axis 201, the first load cell 23 can measure the magnitude of the pulling force F1; the lower clamping plate 22 moves relative to the lower fixing plate 203, and the second is The load cell 24 produces a pulling force F2 directed in the direction of the bending axis 201.
  • the second load cell 24 is capable of measuring the magnitude of the tensile force F1.
  • the flexible display device 40 is fixed on the upper clamping plate 21 and the lower clamping plate 22, when the upper bending plate 202 is rotated by the bending shaft 201, the flexible display device 40 is bent.
  • the bending stress T generated at the bend is the sum of the tensile force F1 and the tensile force F2, so that the bending stress at the bend of the flexible display device 40 can be measured.
  • the rotation angle of the upper bending plate 202 is changed, the flexible display device 40 has different degrees of bending, and the bending stress of the flexible display device 40 can be obtained under different bending degrees, thereby being able to evaluate the bending ability of the flexible display device. .
  • the first load cell 23 and the upper plate 21 and the second load cell may be The connection between at least one of the lower jaws 22 and the lower jaws 22 is provided as an elastic connection, for example, by a spring connection, by varying the spring rate of the spring, the control stress T can be quantified. For example, keeping the distance between the first load cell 23 and the upper plate 21 constant, changing the spring constant of the spring connected between the first load cell 23 and the upper plate 21, The elastic force between the first load cell 23 and the upper plate 21 is quantified, the distance between the second load cell 24 and the lower plate 22 is kept constant, and the second pressure is changed.
  • the spring force of the spring connected between the element 24 and the lower plate 22, the elastic force between the second load cell 24 and the lower plate 22 is quantified, so that the stress of the flexible display device is quantified. It is thus possible to evaluate the performance of the flexible display device under a certain stress.
  • a sleeve sleeve 2010 is sleeved on the bending shaft 201, and at least one bearing 2020 is mounted in the sleeve sleeve 2010, so that the sleeve sleeve 2010 can move synchronously with the flexible display device 40, that is, the shaft
  • the sleeve 2010 can remain relatively stationary with the flexible display device 40 without creating frictional forces between each other so that the frictional force damages the flexible display device 40.
  • the flexible display device bending test device further includes an angle disk 50.
  • the angle plate 50 is disposed on the bending shaft 201 and is located at a side of the upper bending plate 201.
  • the angle disc 50 is fixedly disposed on the bracket 31 or directly on the bracket, and the angle disc 50 does not rotate with the bending shaft 201.
  • An angle scale is provided on the angle disk 50.
  • 4 is a partial enlarged view of the bending test apparatus of the flexible display device of the present invention. Referring to FIG. 4, when the bending device 20 is bent at an angle by the bending shaft 201, the bending device 20 and the horizontal plane The angle can be read from the angle disc, and the advantage is that the data is intuitive and simple.
  • FIG. 5 is a schematic view showing the movement mechanism of the bending test device of the flexible display device of the present invention
  • FIG. 6 is a schematic structural view of the bending test system for the flexible display device of the present invention.
  • the flexible display device bending test device further includes a motion mechanism 25, and the motion mechanism 25 can be fixedly connected to the work table 30.
  • the motion mechanism 25 is coupled to at least one end of the bending shaft 201 to drive the bending shaft 201 to rotate.
  • the bending shaft 201 and the moving mechanism connection end have a gear 2011.
  • the motion mechanism 25 includes a motor 501 and a crank slider mechanism 502.
  • the motor 501 is coupled to the crank slider mechanism 502 via a drive shaft 504.
  • the motor 501 and the drive shaft 504 are connected by a belt 505.
  • the motor 501 rotates, and the drive shaft 504 is rotated by the drive belt 505.
  • the crank slider mechanism 502 includes a cam 5021 and a rack 5022.
  • the rack 5022 is coupled to the edge of the cam 5021 by a connecting rod 5023.
  • the motor 501 is coupled to the cam 5021 of the crank slider mechanism 502 via the drive shaft 504.
  • the driving shaft 504 is rotated by the motor 501, and the rotation of the driving shaft 504 drives the cam 5021 to rotate.
  • the cam 5021 drives the rack 5022 to reciprocate through the connecting rod 5023, thereby
  • the rotational motion of the motor 501 is converted into a linear motion.
  • the diameter of the cam 5021 is larger than the diameter of the drive shaft 504, so that it can change the high-speed rotation of the motor 501 to the low-speed rotation of the cam 5021, thereby achieving the function of deceleration.
  • the crank slider mechanism 502 converts the rotational motion output from the motor 501 into a linear motion, and the rack 5022 performs a reciprocating linear motion.
  • the rack 5022 has teeth on its surface, the rack 5022 meshes with the gear 2011 of the bending shaft 201, and the linear motion of the rack 5022 is converted into a rotational motion of the gear 2011, thereby rotating the bending shaft 201.
  • adjusting the diameter of the turntable 5042 can control the round trip of the rack 5022 to control the angle of rotation of the gear 2011.
  • the working process of the flexible display device bending test device of the present invention is as follows.
  • the upper portion and the lower portion of the flexible display device 40 are respectively fixed on the upper clamping plate 21 and the lower clamping plate 22, and one end of the flexible display device 40 having the flexible circuit board is disposed on the lower clamping plate 22 of the lower fixing plate 203. It can prevent the flexible circuit board of the flexible display device 40 from being bent, affecting the performance of the flexible display device 40; and starting the motion mechanism, the moving mechanism drives the bending shaft 201 to rotate; the bending shaft 201 drives the upward bending
  • the flap 202 moves toward the lower fixing plate 203 to bend the flexible display device 40 fixed thereto; the bending of the flexible display device 40 can be obtained by the first load cell 23 and the second load cell 24 Stress, and can quantify the stress.
  • the present invention also provides a flexible display device bending test system.
  • the flexible display device bending test system includes a plurality of flexible display device bending test devices.
  • a plurality of flexible display device bending test devices are sequentially disposed on the table 30.
  • the adjacent two flexible display device bending test devices are driven by a drive belt 505 sleeved on the drive shaft 504, and the motor 501 is only connected to one of the flexible display device bending test devices, thereby driving all the flexibility through the drive belt 505.
  • the display device bends the test device.

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Abstract

一种柔性显示装置弯折测试设备及系统，设备包括弯折装置（20），弯折装置（20）包括弯曲轴（201）、上弯折板（202）及下固定板（203），弯曲轴（201）设置在上弯折板（202）与下固定板（203）之间，上弯折板（202）与弯曲轴（201）连接；上夹板（21）设置在上弯折板（202）表面，上夹板（21）能够沿上弯折板（202）表面滑动，上夹板（21）背离上弯折板（202）的表面为柔性显示装置上部放置面，在柔性显示装置上部放置面上设置有用于固定柔性显示装置上部的第一固定夹（210）；下夹板（22）设置在下固定板（203）表面，下夹板（22）能够沿下固定板（203）表面滑动，下夹板（22）背离下固定板（203）的表面为柔性显示装置下部放置面，在柔性显示装置下部放置面上设置有用于固定柔性显示装置下部的第二固定夹（220）；第一测压元件（23）与上夹板（21）的一端连接；第二测压元件（24）与下夹板（22）的一端连接。

Description

柔性显示装置弯折测试设备及系统 技术领域
本发明涉及柔性显示装置领域，尤其涉及一种柔性显示装置弯折测试设备及系统。
 背景技术
随着科学技术的不断进步，LCD(LiquidCrystalDisplay，液晶显示器)，PDP (PlasmaDisplayPanel，等离子显示板)，OLED(OrganicElectroluminescence Display，有机电致发光显示)等平板显示技术日趋成熟，传统的CRT(Cathode RayTube，阴极射线管)显示器已经基本被取代。
近年来，柔性显示装置的潜在优势日益突出。柔性显示装置是指显示面板可弯曲变形的显示装置，其包括柔性有机电致发光显示装置、柔性电泳显示装置、柔性液晶显示装置等多种类型。柔性显示装置至少包括柔性显示面板以及控制所述柔性显示面板的驱动电路，其中，所述柔性显示面板由可弯曲的柔性材料制成，从而所述柔性显示面板可弯曲，进而所述柔性显示装置可弯曲。
作为新一代的显示器件，因其具有薄而轻、高对比度、快速响应、宽视角、 高亮度、全彩色等优点，因此在手机、个人数字助理(PDA)、数码相机、车载显示、笔记本电脑、壁挂电视以及军事领域等均具有十分广泛的应用前景。特别的，柔性显示装置可以在收容时保持卷曲状态，以方便携带；工作时展开，方便操作；还可以挂在身上，呈现可穿戴的状态。如此种种优点，更加使得其被广泛关注。
柔性显示器件与材料需要进行弯折测试，以评估材料与器件可承受的弯折折叠半径与其寿命。参见图1A~图1C，其中图1A是柔性显示装置的示意图，所述柔性显示装置的显示屏幕10设置在柔性显示装置表面，在所述柔性显示装置侧面设置有柔性部11，所述柔性部11可采用橡胶材料制成。将所述柔性显示装置向内弯折，参见图1B所示，所述显示屏幕10位于弯折面内，可测试内折的折叠半径及寿命；将所述柔性显示装置向外弯折，参见图1C所示，所述显示屏幕10位于弯折面外，可测试外折的折叠半径及寿命。
现有技术中还没有专门用于柔性显示装置弯折测试的机构，因此，亟需一种柔性显示装置弯折测试装置用于柔性显示装置弯折测试。
 技术问题
本发明所要解决的技术问题是，提供一种柔性显示装置弯折测试设备及系统，其能够用于柔性显示装置弯折测试。
 技术解决方案
为了解决上述问题，本发明提供了一种柔性显示装置弯折测试设备，其包括：一弯折装置，包括一弯曲轴、一上弯折板及一下固定板，所述弯曲轴设置在所述上弯折板与所述下固定板之间，所述上弯折板的一端与所述弯曲轴固定连接，所述弯曲轴转动能够带动所述上弯折板朝向所述下固定板方向转动，所述下固定板固定在一工作台上；一上夹板，设置在所述上弯折板表面，所述上夹板能够沿所述上弯折板表面滑动，所述上夹板背离所述上弯折板的表面为一柔性显示装置的上部放置面，在所述柔性显示装置的上部放置面上设置有用于固定所述柔性显示装置的上部的一第一固定夹；一下夹板，设置在所述下固定板表面，所述下夹板能够沿所述下固定板表面滑动，所述下夹板背离所述下固定板的表面为所述柔性显示装置的下部放置面，在所述柔性显示装置的下部放置面上设置有用于固定所述柔性显示装置的下部的第二固定夹；一第一测压元件，设置在所述上弯折板的上部，且与所述上夹板远离弯曲轴的一端连接；一第二测压元件，设置在所述下固定板下部，且与所述下夹板远离弯曲轴的一端连接，所述第一测压元件与所述上夹板之间及所述第二测压元件与所述下夹板之间至少其中之一为弹性连接；一运动机构，所述运动机构与所述弯曲轴的至少一端连接，以驱动所述弯曲轴转动，所述弯曲轴与所述运动机构连接端具有一齿轮，所述运动机构包括一电机及一曲柄滑块机构，所述曲柄滑块机构包括一凸轮及一齿条，所述电机通过一驱动轴与所述凸轮连接，所述齿条通过一连接杆与所述凸轮边缘连接，所述曲柄滑块机构将所述电机输出的旋转运动转换为所述齿条的直线运动，所述齿条与所述弯曲轴的齿轮啮合，所述齿条的直线运动转换为所述齿轮的旋转运动，进而使所述弯曲轴转动。
本发明还提供了一种柔性显示装置弯折测试设备，其包括：一弯折装置，包括一弯曲轴、一上弯折板及一下固定板，所述弯曲轴设置在所述上弯折板与所述下固定板之间，所述上弯折板的一端与所述弯曲轴固定连接，所述弯曲轴转动能够带动所述上弯折板朝向所述下固定板方向转动，所述下固定板固定在一工作台上；一上夹板，设置在所述上弯折板表面，所述上夹板能够沿所述上弯折板表面滑动，所述上夹板背离所述上弯折板的表面为一柔性显示装置的上部放置面，在所述柔性显示装置的上部放置面上设置有用于固定所述柔性显示装置的上部的一第一固定夹；一下夹板，设置在所述下固定板表面，所述下夹板能够沿所述下固定板表面滑动，所述下夹板背离所述下固定板的表面为所述柔性显示装置的下部放置面，在所述柔性显示装置的下部放置面上设置有用于固定所述柔性显示装置的下部的第二固定夹；一第一测压元件，设置在所述上弯折板的上部，且与所述上夹板远离弯曲轴的一端连接；一第二测压元件，设置在所述下固定板下部，且与所述下夹板远离弯曲轴的一端连接。
在一实施例中，所述测试设备还包括一运动机构，所述运动机构与所述弯曲轴的至少一端连接，以驱动所述弯曲轴转动。
在一实施例中，所述弯曲轴与所述运动机构连接端具有一齿轮，所述运动机构包括一电机及一曲柄滑块机构，所述曲柄滑块机构包括一凸轮及一齿条，所述电机通过一驱动轴与所述凸轮连接，所述齿条通过一连接杆与所述凸轮边缘连接，所述曲柄滑块机构将所述电机输出的旋转运动转换为所述齿条的直线运动，所述齿条与所述弯曲轴的齿轮啮合，所述齿条的直线运动转换为所述齿轮的旋转运动，进而使所述弯曲轴转动。
在一实施例中，所述电机通过一传动带与所述驱动轴连接。
在一实施例中，在所述弯曲轴上套设有一轴套，在所述轴套内安装有至少一轴承，使得所述轴套能够与所述柔性显示装置同步运动。
在一实施例中，所述柔性显示装置弯折测试设备还包括一角度盘，所述角度盘设置在所述弯曲轴上，且位于所述上弯折板侧面，所述角度盘上设置有一角度刻度。
在一实施例中，所述第一测压元件与所述上夹板之间及所述第二测压元件与所述下夹板之间至少其中之一为弹性连接。
在一实施例中，所述上弯折板的表面设置有第一滑轨，所述上夹板在对应所述第一滑轨的位置设置有一第一滑槽，所述第一滑槽能够沿所述第一滑轨滑行，以使所述上夹板能够沿所述上弯折板表面滑动，所述下固定板表面设置有一第二滑轨，所述下夹板在对应所述第二滑轨的位置设置有一第二滑槽，所述第二滑槽能够沿所述第二滑轨滑行，以使所述下夹板能够沿所述下固定板表面滑动。
本发明还提供一种柔性显示装置弯折测试系统，其包括多个上述的柔性显示装置弯折测试设备。
在一实施例中，相邻的两个柔性显示装置弯折测试设备通过套设在一驱动轴上的传动带传动，一电机仅与其中一个所述柔性显示装置弯折测试设备连接，进而通过一传动带驱动所有柔性显示装置弯折测试设备。
 有益效果
本发明的优点在于，提供一种能够用于柔性显示装置弯折测试的设备，结构简单，操作方法，且可直观检测出柔性显示装置在不同弯曲角度的弯曲应力，能够评估所述柔性显示装置的可靠性等性能。
 附图说明
图1A是柔性显示装置的示意图；
图1B是柔性显示装置向内弯折的示意图；
图1C是柔性显示装置向外弯折的示意图；
图2是本发明柔性显示装置弯折测试设备的结构示意图；
图3是本发明柔性显示装置弯折测试设备的受力分析图；
图4是本发明柔性显示装置弯折测试设备的局部放大图；
图5是本发明柔性显示装置弯折测试设备的运动机构示意图；
图6是本发明柔性显示装置弯折测试系统的结构示意图。
 本发明的最佳实施方式
下面结合附图对本发明提供的柔性显示装置弯折测试设备及系统的具体实施方式做详细说明。
图2是本发明柔性显示装置弯折测试设备的结构示意图。请参阅图2，本发明柔性显示装置弯折测试设备包括一弯折装置20、一上夹板21、一下夹板22、一第一测压元件23、一第二测压元件24。
所述弯折装置20包括弯曲轴201、上弯折板202及下固定板203。所述弯曲轴201设置在所述上弯折板202与所述下固定板203之间。所述弯曲轴201通过一固定在工作台30上的支架31所支撑。所述上弯折板202的一端与所述弯曲轴201固定连接，所述固定连接可为可拆卸式的固定连接。所述弯曲轴201能够转动，进而所述弯曲轴201能够带动所述上弯折板202朝向所述下固定板203方向转动，所述上弯折板202的运动方向在图2中采用箭头示出。所述弯曲轴201可通过一运动机构25驱动而转动，所述运动机构25的具体结构将在下文描述。所述弯曲轴201与所述下固定板203不接触，进而避免所述下固定板203被所述弯曲轴201带动转动。所述下固板203固定在工作台30上，所述下固板203不转动也不滑动。
所述上弯折板202的表面设置有第一滑轨2021，所述第一滑轨2021可包括两个相对设置在所述上弯折板202上的轨道。所述下固定板203表面设置有第二滑轨2031，所述第二滑轨2031可包括两个相对设置在所述下固定板203上的轨道。
所述上夹板21设置在所述上弯折板202表面。所述上夹板21在对应所述第一滑轨2021的位置设置有第一滑槽211。所述第一滑槽211能够沿所述第一滑轨2021滑行，进而使所述上夹板21能够沿所述上弯折板202表面上下滑动。所述上夹板21背离所述上弯折板202的表面为柔性显示装置上部放置面。进一步，所述第一滑槽211设置在所述上夹板21朝向所述上弯折板202的表面上。在所述柔性显示装置上部放置面上设置有用于固定柔性显示装置上部的第一固定夹210，所述第一固定夹210可设置在所述上夹板21的两侧。所述第一固定夹210可夹持柔性显示装置上部，进而实现柔性显示装置与所述上夹板21的固定。在所述上夹板21相对于所述上弯折板202表面上下滑动时，所述柔性显示装置与所述上夹板21相对静止。
所述下夹板22设置在所述下固定板203表面。所述下夹板22在对应所述第二滑轨2031的位置设置有第二滑槽221。所述第二滑槽221能够沿所述第二滑轨2031滑行，以使所述下夹板22能够沿所述下固定板203表面滑动。所述下夹板22背离所述下固定板203的表面为柔性显示装置下部放置面。进一步，所述第二滑槽221设置在所述下夹板22朝向所述下固定板203的表面上。在所述柔性显示装置下部放置面上设置有用于固定柔性显示装置下部的第二固定夹220。所述第二固定夹220可设置在所述下夹板22的两侧。所述第二固定夹220可夹持柔性显示装置下部，进而实现柔性显示装置与所述下夹板22的固定。在所述下夹板22相对于所述下固定板203表面上下滑动时，所述柔性显示装置与所述下夹板22相对静止。
所述第一测压元件23设置在所述上弯折板202远离弯曲轴201的一端，且与所述上夹板21远离弯曲轴201的一端连接。所述第二测压元件24设置在所述下固定板203远离弯曲轴201的一端，且与所述下夹板22远离弯曲轴201的一端连接。所述第一测压元件23及所述第二测压元件24均可以为压力传感器。
图3是本发明柔性显示装置弯折测试设备的受力分析图。请参阅图3，当所述上弯折板202在弯曲轴201的作用下转动时，所述上夹板21相对于所述上弯折板202移动，则会对所述第一测压元件23产生一朝向弯曲轴201方向的拉力F1，所述第一测压元件23能够测量出该拉力F1的大小；所述下夹板22相对于所述下固定板203移动，则会对所述第二测压元件24产生一朝向弯曲轴201方向的拉力F2。所述第二测压元件24能够测量出该拉力F1的大小。而由于柔性显示装置40固定在所述上夹板21及所述下夹板22上，则当所述上弯折板202在弯曲轴201的作用下转动时，所述柔性显示装置40发生弯曲，在弯曲处产生的弯曲应力T即为拉力F1与拉力F2之和，从而能够测得所述柔性显示装置40弯曲处的弯曲应力。改变所述上弯折板202的转动角度，则所述柔性显示装置40弯曲程度不同，能够得到在不同弯曲程度下，所述柔性显示装置40的弯曲应力，进而能够评估柔性显示装置的弯曲能力。
优选地，若要评估所述柔性显示装置40在某一弯曲应力下的弯折能力，则可将所述第一测压元件23与所述上夹板21之间及所述第二测压元件24与所述下夹板22之间至少其中之一的连接设置为弹性连接，例如，设置为通过弹簧连接，通过改变弹簧的弹性系数，可量化控制应力T。例如，保持所述第一测压元件23与所述上夹板21之间的距离不变，改变所述第一测压元件23与所述上夹板21之间连接的弹簧的弹性系数，则所述第一测压元件23与所述上夹板21之间的弹力会被量化，保持所述第二测压元件24与所述下夹板22之间的距离不变，改变所述第二测压元件24与所述下夹板22之间连接的弹簧的弹性系数，则所述第二测压元件24与所述下夹板22之间的弹力会被量化，进而使得柔性显示装置的应力被量化，从而能够评估在某一应力下柔性显示装置的性能。
优选地，在所述弯曲轴201上套设有轴套2010，在所述轴套2010内安装有至少一轴承2020，使得所述轴套2010能够与柔性显示装置40同步运动，即所述轴套2010能够与柔性显示装置40保持相对静止，彼此之间不会产生摩擦力，以便摩擦力损伤柔性显示装置40。
优选地，所述柔性显示装置弯折测试设备还包括一角度盘50。所述角度盘50设置在所述弯曲轴201上，且位于所述上弯折板201侧面。在本具体实施方式中，所述角度盘50固定设置在所述支架31上，或者直接刻画在所述支架上，所述角度盘50不会随所述弯曲轴201而转动。所述角度盘50上设置有角度刻度。图4是本发明柔性显示装置弯折测试设备的局部放大图，请参阅图4，当所述弯折装置20在弯曲轴201的作用下弯折一角度时，所述弯折装置20与水平面的角度可从所述角度盘上读取，优点在于，数据直观，简单明了。
图5是本发明柔性显示装置弯折测试设备的运动机构示意图，图6是本发明柔性显示装置弯折测试系统的结构示意图。请参阅图2、图5及图6，所述柔性显示装置弯折测试设备还包括一运动机构25，所述运动机构25可与所述工作台30固定连接。所述运动机构25与所述弯曲轴201的至少一端连接，以驱动所述弯曲轴201转动。所述弯曲轴201与所述运动机构连接端具有一齿轮2011。
所述运动机构25包括一电机501及一曲柄滑块机构502。
所述电机501通过一驱动轴504与所述曲柄滑块机构502连接。所述电机501与所述驱动轴504之间通过传动带505连接。所述电机501转动，通过所述传动带505带动所述驱动轴504转动。所述曲柄滑块机构502包括凸轮5021及齿条5022。所述齿条5022通过一连接杆5023连接至所述凸轮5021的边缘。所述电机501通过所述驱动轴504与所述曲柄滑块机构502的所述凸轮5021连接。所述驱动轴504在电机501的带动下转动，所述驱动轴504的转动又带动所述凸轮5021转动，所述凸轮5021通过所述连接杆5023带动所述齿条5022往复运动，从而将所述电机501的旋转运动转换为直线运动。优选地，所述凸轮5021的直径大于所述驱动轴504的直径，则其可以将所述电机501的高速旋转改变为凸轮5021的低速旋转，进而实现减速的功能。
在本发明中，所述曲柄滑块机构502将电机501输出的旋转运动转换为直线运动，所述齿条5022做往复直线运动。所述齿条5022表面具有齿，所述齿条5022与所述弯曲轴201的齿轮2011啮合，所述齿条5022的直线运动转换为齿轮2011的旋转运动，进而使所述弯曲轴201转动。优选地，调节所述转盘5042的直径，可控制所述齿条5022的往返行程，从而控制所述齿轮2011的旋转角度。
本发明柔性显示装置弯折测试设备的工作过程如下。
将柔性显示装置40的上部及下部分别固定在所述上夹板21及下夹板22上，可将所述柔性显示装置40的具有柔性线路板的一端，设置在下固定板203的下夹板22上，其可避免柔性显示装置40的具有柔性线路板被弯折，影响柔性显示装置40的性能；启动运动机构，所述运动机构带动所述弯曲轴201转动；所述弯曲轴201带动所述上弯折板202朝向下固定板203运动，进而使固定在其上的柔性显示装置40弯折；通过所述第一测压元件23及第二测压元件24可得到所述柔性显示装置40的弯曲应力，并可量化控制所述应力。
本发明还提供一种柔性显示装置弯折测试系统，请参阅图6，所述柔性显示装置弯折测试系统包括多个柔性显示装置弯折测试设备。多个柔性显示装置弯折测试设备依次设置在工作台30上。优选地，相邻的两个柔性显示装置弯折测试设备通过套设在驱动轴504上的传动带505传动，电机501仅与其中一个柔性显示装置弯折测试设备连接，进而通过传动带505驱动所有柔性显示装置弯折测试设备。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (11)

  1. 一种柔性显示装置弯折测试设备，其包括：
    一弯折装置，包括一弯曲轴、一上弯折板及一下固定板，所述弯曲轴设置在所述上弯折板与所述下固定板之间，所述上弯折板的一端与所述弯曲轴固定连接，所述弯曲轴转动能够带动所述上弯折板朝向所述下固定板方向转动，所述下固定板固定在一工作台上；
    一上夹板，设置在所述上弯折板表面，所述上夹板能够沿所述上弯折板表面滑动，所述上夹板背离所述上弯折板的表面为一柔性显示装置的上部放置面，在所述柔性显示装置的上部放置面上设置有用于固定所述柔性显示装置的上部的一第一固定夹；
    一下夹板，设置在所述下固定板表面，所述下夹板能够沿所述下固定板表面滑动，所述下夹板背离所述下固定板的表面为所述柔性显示装置的下部放置面，在所述柔性显示装置的下部放置面上设置有用于固定所述柔性显示装置的下部的一第二固定夹；
    一第一测压元件，设置在所述上弯折板的上部，且与所述上夹板远离弯曲轴的一端连接；
    一第二测压元件，设置在所述下固定板下部，且与所述下夹板远离弯曲轴的一端连接，所述第一测压元件与所述上夹板之间及所述第二测压元件与所述下夹板之间至少其中之一为弹性连接；
    一运动机构，所述运动机构与所述弯曲轴的至少一端连接，以驱动所述弯曲轴转动，所述弯曲轴与所述运动机构连接端具有一齿轮，所述运动机构包括一电机及一曲柄滑块机构，所述曲柄滑块机构包括一凸轮及一齿条，所述电机通过一驱动轴与所述凸轮连接，所述齿条通过一连接杆与所述凸轮边缘连接，所述曲柄滑块机构将所述电机输出的旋转运动转换为所述齿条的直线运动，所述齿条与所述弯曲轴的齿轮啮合，所述齿条的直线运动转换为所述齿轮的旋转运动，进而使所述弯曲轴转动。
  2. 一种柔性显示装置弯折测试设备，其包括：
    一弯折装置，包括一弯曲轴、一上弯折板及一下固定板，所述弯曲轴设置在所述上弯折板与所述下固定板之间，所述上弯折板的一端与所述弯曲轴固定连接，所述弯曲轴转动能够带动所述上弯折板朝向所述下固定板方向转动，所述下固定板固定在一工作台上；
    一上夹板，设置在所述上弯折板表面，所述上夹板能够沿所述上弯折板表面滑动，所述上夹板背离所述上弯折板的表面为一柔性显示装置的上部放置面，在所述柔性显示装置的上部放置面上设置有用于固定所述柔性显示装置的上部的一第一固定夹；
    一下夹板，设置在所述下固定板表面，所述下夹板能够沿所述下固定板表面滑动，所述下夹板背离所述下固定板的表面为所述柔性显示装置的下部放置面，在所述柔性显示装置的下部放置面上设置有用于固定所述柔性显示装置的下部的一第二固定夹；
    一第一测压元件，设置在所述上弯折板的上部，且与所述上夹板远离弯曲轴的一端连接；
    一第二测压元件，设置在所述下固定板下部，且与所述下夹板远离弯曲轴的一端连接。
  3. 根据权利要求2所述的柔性显示装置弯折测试设备，其中所述测试设备还包括一运动机构，所述运动机构与所述弯曲轴的至少一端连接，以驱动所述弯曲轴转动。
  4. 根据权利要求3所述的柔性显示装置弯折测试设备，其中所述弯曲轴与所述运动机构连接端具有一齿轮，所述运动机构包括一电机及一曲柄滑块机构，所述曲柄滑块机构包括一凸轮及一齿条，所述电机通过一驱动轴与所述凸轮连接，所述齿条通过一连接杆与所述凸轮边缘连接，所述曲柄滑块机构将所述电机输出的旋转运动转换为所述齿条的直线运动，所述齿条与所述弯曲轴的齿轮啮合，所述齿条的直线运动转换为所述齿轮的旋转运动，进而使所述弯曲轴转动。
  5. 根据权利要求4所述的柔性显示装置弯折测试设备，其中所述电机通过一传动带与所述驱动轴连接。
  6. 根据权利要求2所述的柔性显示装置弯折测试设备，其中在所述弯曲轴上套设有一轴套，在所述轴套内安装有至少一轴承，使得所述轴套能够与所述柔性显示装置同步运动。
  7. 根据权利要求2所述的柔性显示装置弯折测试设备，其中所述柔性显示装置弯折测试设备还包括一角度盘，所述角度盘设置在所述弯曲轴上，且位于所述上弯折板侧面，所述角度盘上设置有一角度刻度。
  8. 根据权利要求2所述的柔性显示装置弯折测试设备，其中所述第一测压元件与所述上夹板之间及所述第二测压元件与所述下夹板之间至少其中之一为弹性连接。
  9. 根据权利要求2所述的柔性显示装置弯折测试设备，其中所述上弯折板的表面设置有第一滑轨，所述上夹板在对应所述第一滑轨的位置设置有一第一滑槽，所述第一滑槽能够沿所述第一滑轨滑行，以使所述上夹板能够沿所述上弯折板表面滑动，所述下固定板表面设置有一第二滑轨，所述下夹板在对应所述第二滑轨的位置设置有一第二滑槽，所述第二滑槽能够沿所述第二滑轨滑行，以使所述下夹板能够沿所述下固定板表面滑动。
  10. 一种柔性显示装置弯折测试系统，其包括多个权利要求2所述的柔性显示装置弯折测试设备。
  11. 根据权利要求10所述的柔性显示装置弯折测试系统，其中相邻的两个柔性显示装置弯折测试设备通过套设在一驱动轴上的传动带传动，一电机仅与其中一个所述柔性显示装置弯折测试设备连接，进而通过一传动带驱动所有柔性显示装置弯折测试设备。
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