WO2016206256A1 - 摩擦配向方法及其装置 - Google Patents

摩擦配向方法及其装置 Download PDF

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Publication number
WO2016206256A1
WO2016206256A1 PCT/CN2015/092495 CN2015092495W WO2016206256A1 WO 2016206256 A1 WO2016206256 A1 WO 2016206256A1 CN 2015092495 W CN2015092495 W CN 2015092495W WO 2016206256 A1 WO2016206256 A1 WO 2016206256A1
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WIPO (PCT)
Prior art keywords
rubbing
friction
cloth
transparent substrate
ultrasonic
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PCT/CN2015/092495
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English (en)
French (fr)
Inventor
王凯
李锋
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京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/326,859 priority Critical patent/US10330985B2/en
Publication of WO2016206256A1 publication Critical patent/WO2016206256A1/zh

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    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/065—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of thin, brittle parts, e.g. semiconductors, wafers

Definitions

  • the present disclosure relates to the field of manufacturing liquid crystal display devices, and more particularly to a friction alignment method and device thereof.
  • the intensity of the transmitted light is mainly controlled by the liquid crystal in the electric field control panel, so the alignment state of the liquid crystal, especially the initial alignment state, becomes more important, which is mainly based on the color film substrate and
  • the alignment film on the TFT array substrate is controlled by an alignment film, which can align liquid crystal molecules in an uncharged state in a certain direction.
  • the alignment direction on the alignment film can be obtained by performing alignment rubbing on the alignment film by a rubbing cloth rotating at a high speed.
  • the inventors of the present application found in the experiment that the liquid crystal display panel for the FFS type (Fringe Field Switching) display mode and the IPS type (In-Plane Switching) display mode is due to the liquid crystal.
  • the inner surface of the transparent substrate of the display panel has regularly arranged pixel electrodes, so that when the rubbing cloth is used for the alignment rubbing, the uniformity of the alignment rubbing stripe is poor, and the foreign matter in the liquid crystal display panel is high.
  • the main reason is that the gatherability of the cloth of the rubbing cloth is not uniform, that is, when the rubbing cloth with uneven gatherability of the cloth is used for the alignment rubbing of the liquid crystal display panel, the alignment rubbing stripe on the surface of the transparent substrate is uneven.
  • the technical problem to be solved by the present disclosure is to solve the transparency in the prior art liquid crystal display panel.
  • the present disclosure provides a friction alignment method comprising the steps of: S1, providing a transparent substrate having an alignment film on a surface, driving the transparent substrate to move in a first direction; S2, during the movement of the transparent substrate, The rubbing roller with the rubbing cloth on the surface is subjected to rolling friction on the alignment film on the surface of the transparent substrate; the step S2 further comprises: combing the cloth on the rubbing cloth in real time using ultrasonic waves.
  • the ultrasonic wave propagates to the surface of the rubbing cloth along a tangential direction of the rubbing roller.
  • the propagation direction of the ultrasonic wave is at an angle of 45° with the first direction.
  • the position at which the ultrasonic wave propagates to the rubbing cloth is located at a downstream position where the rubbing cloth is in frictional contact with the alignment film.
  • the frequency of the ultrasonic wave is less than or equal to 5 MHz.
  • the present disclosure also provides a friction alignment device, comprising a frame, a base plate disposed on the frame for carrying the transparent substrate, a linear drive mechanism for driving the linear movement of the base plate, and a movement path disposed on the base plate a friction roller and a rolling drive mechanism for driving the rotation of the friction roller; a surface of the friction roller is attached with a friction cloth; further comprising an ultrasonic device disposed on the frame, the ultrasonic device being provided with an ultrasonic wave emitting port, A rubbing cloth of the ultrasonic wave emitting opening facing the surface of the rubbing roller for propagating ultrasonic waves to the rubbing cloth.
  • the direction of propagation of the ultrasonic waves emitted by the ultrasonic device is located in a tangential direction of the friction roller.
  • the imaginary extension line of the ultrasonic wave emitting port forms an angle of 45 with the base.
  • the width of the ultrasonic wave emitting opening is greater than or equal to the length of the friction roller.
  • the ultrasonic wave emitting port is a crack or a gap structure.
  • the above technical solution of the present disclosure has the following advantages: real-time uniform combing of the cloth of the friction cloth by using ultrasonic waves, so that the distribution of the cloth after the carding is more uniform, thereby improving the problem of uneven alignment frictional stripes on the surface of the transparent substrate, and improving the liquid crystal.
  • the yield rate of the display panel is not limited to: real-time uniform combing of the cloth of the friction cloth by using ultrasonic waves, so that the distribution of the cloth after the carding is more uniform, thereby improving the problem of uneven alignment frictional stripes on the surface of the transparent substrate, and improving the liquid crystal.
  • Figure 1 is a front elevational view of a friction alignment device of an embodiment of the present disclosure
  • Figure 2 is a left side view of the friction alignment device of the embodiment of the present disclosure
  • FIG 3 is a schematic view of a friction alignment method of an embodiment of the present disclosure.
  • a friction alignment device provided by an embodiment of the present disclosure includes a frame 107, an ultrasonic device 106, a base 101, a linear drive mechanism 108, a friction roller 105, and a rolling drive mechanism 109 (as shown in FIG. 3))
  • the base 101 is disposed on the frame 107 for carrying the transparent substrate 102.
  • the linear drive mechanism 108 is used to drive the base 101 to move linearly, and the surface of the friction roller 105 is attached with a rubbing cloth 104.
  • the material of the rubbing cloth 104 may be linen or nylon.
  • the rubbing roller 105 is disposed on a moving path of the transparent substrate 102, and the rolling roller 105 is driven by the rolling drive mechanism to roll.
  • the frame 107 is provided with a linear slide rail
  • the base platform 101 is disposed on the slider of the linear slide rail
  • the drive mechanism 108 adopts a combination of the ball screw pair and the motor
  • the ball screw pair and the linear slide The rails are arranged in parallel
  • the motor drives the screw of the ball screw pair to rotate
  • the friction roller 105 is rotatably disposed above the linear slide through the bracket on the frame 107.
  • the friction roller 105 is disposed above the base 101, and an angle between a central axis of the friction roller 105 and a moving direction of the base 101 may be adjusted within a range of 0° to 90°, so that the friction roller 105 is The central axis is at an angle to the transparent substrate 102 to satisfy the relative tilting of the transparent substrate 102 of the rubbing cloth 104.
  • the ultrasonic device 106 is disposed in the gantry 107, and the ultrasonic device 106 is provided with an ultrasonic wave emitting port that faces the rubbing cloth 104 on the surface of the rubbing roller 105 to propagate ultrasonic waves to the rubbing cloth 104. Ultrasonic can be used to comb the cloth of the rubbing cloth 104 in real time, so that the combed The distribution of the bristles is more uniform, thereby improving the uniformity of the alignment friction stripe on the surface of the transparent substrate 102.
  • the width of the ultrasonic wave emitting opening is greater than or equal to the length of the friction roller 105, and the ultrasonic wave emitting port is parallel to the central axis of the friction roller 105.
  • the direction of propagation of the ultrasonic waves emitted by the ultrasonic device 106 is located in the tangential direction of the friction roller 105.
  • the ultrasonic wave emitting port is a crack or a gap structure.
  • the angle between the imaginary extension line of the ultrasonic wave emitting port and the transparent substrate 102 can be optimized according to different products, different friction cloths 104 and other process conditions, and the imaginary extension line of the ultrasonic wave emitting port can be at an angle of 45° to the transparent substrate 102. . Optimizing the direction in which the ultrasonic device 106 emits ultrasonic waves can more accurately comb the cloth of the rubbing cloth 104, improving the efficiency of the ultrasonic waves propagating to the surface of the rubbing cloth 104.
  • the present disclosure provides a friction alignment method that can use the friction alignment device provided above, which includes the following steps:
  • the manufacturing method of the transparent substrate 102 having the alignment film on the surface includes the following two steps: disposing a transparent electrode on the surface of the transparent substrate 102; then forming an alignment film 103 on the surface of the transparent electrode.
  • the thickness of the alignment film 103 is generally between (A) to Between, optional, the thickness of the alignment film is preferred with A transparent substrate can be a glass substrate.
  • the transparent substrate 102 is placed on the base 101 of the friction alignment device, and the linear drive mechanism 108 drives the base 101 and the transparent substrate 102 to move in the first direction, that is, along the arrow A in FIGS. 2 and 3. Move in the direction of pointing.
  • the alignment film 103 on the surface of the transparent substrate 102 is subjected to rolling friction with a rubbing roller 105 having a rubbing cloth on its surface.
  • the friction roller 105 performs rolling friction on the alignment film 103 on the surface of the transparent substrate 102 in a rolling manner in which the tangential speed direction of the bottom is opposite to the traveling direction of the transparent substrate 102. As shown in FIGS. 2 and 3, the friction roller 105 is along the arrow. B turns in the direction.
  • the cloth on the rubbing cloth 104 is combed in real time using ultrasonic waves while rolling friction. Ultrasonic combing of the cloth on the rubbing cloth 104 in real time can make the cloth on the rubbing cloth 104 more uniform.
  • the ultrasonic waves are cut along the friction roller 105
  • the line direction propagates to the surface of the rubbing cloth 104, and the direction of propagation of the ultrasonic waves is at an angle of 45 with the direction in which the transparent substrate 102 moves, that is, the direction of propagation of the ultrasonic waves is at an angle of 45 to the first direction.
  • the position at which the ultrasonic wave propagates to the rubbing cloth 104 is located downstream of the rubbing cloth 104 in frictional contact with the alignment film 103, and the frequency of the ultrasonic waves is 5 MHz or less.
  • downstream position in the present disclosure means that the frictional position of the friction roller 105 and the alignment film 103 is based on the definition of the rotation direction within 180 degrees of the rotation direction as the downstream.
  • the design enables the ultrasonic waves to comb the cloth of the rubbing cloth 104 more accurately, so that the alignment friction stripe on the surface of the transparent substrate is more uniform.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

一种摩擦配向方法，包括以下步骤：S1，提供表面具有配向膜（103）的透明基板（102），驱动透明基板（102）朝第一方向移动；S2，在透明基板（102）移动过程中，以表面附有摩擦布（104）的摩擦滚筒（105）对透明基板（102）表面的配向膜（103）进行滚动摩擦；步骤S2还包括，使用超声波对摩擦布（104）上的布毛实时进行梳理。还提供了一种摩擦配向装置。采用超声波对摩擦布（104）的布毛进行实时均一梳理，使得梳理后的布毛分布更加均匀，从而可以改善透明基板（104）表面的配向摩擦条纹不均匀，提升液晶显示面板的良品率。

Description

摩擦配向方法及其装置
相关申请的交叉引用
本申请主张在2015年6月24日在中国提交的中国专利申请号No.201510355296.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及液晶显示装置制造领域，尤其涉及一种摩擦配向方法及其装置。
背景技术
在液晶显示面板中，主要通过电场控制面板中液晶来对透过光线进行强弱的调控，因此液晶的排列状态，尤其是初始的排列状态就变得尤为重要，这主要靠位于彩膜基板和TFT阵列基板上的带有配向方向的配向膜来控制，它可以使未加电状态下的液晶分子按照一定的方向进行排列。
配向膜上的配向方向可以通过高速转动的摩擦布对配向膜进行配向摩擦来得到。然而，本申请的发明人在实验过程中发现，对于FFS型(Fringe Field Switching，边缘场开关型)显示模式和IPS型(In-Plane Switching，平面转换型)显示模式的液晶显示面板，因液晶显示面板的透明基板内表面有规律排布的像素电极，使得在使用摩擦布进行配向摩擦时，产生配向摩擦条纹的均匀性较差，以及液晶显示面板内异物高发的问题。主要原因是摩擦布的布毛的聚集性不均匀，也就是说，当采用布毛聚集性不均匀的摩擦布对液晶显示面板进行配向摩擦时，会导致透明基板表面的配向摩擦条纹不均匀。
发明内容
(一)要解决的技术问题
本公开要解决的技术问题是解决现有技术中液晶显示面板中透明 基板的表面的配向摩擦条纹不均匀的问题。
(二)技术方案
为了解决上述技术问题，本公开提供了一种摩擦配向方法，包括以下步骤：S1，提供表面具有配向膜的透明基板，驱动透明基板朝第一方向移动；S2，在透明基板移动过程中，以表面附有摩擦布的摩擦滚筒对透明基板表面的配向膜进行滚动摩擦；步骤S2还包括：使用超声波对摩擦布上的布毛实时进行梳理。
其中，所述超声波沿着所述摩擦滚筒的切线方向传播到所述摩擦布的表面。
其中，所述超声波的传播方向与所述第一方向成45°角。
其中，所述超声波传播到所述摩擦布的位置位于所述摩擦布与配向膜相摩擦接触的下游位置。
其中，所述超声波的频率小于等于5MHz。
本公开还提供了一种摩擦配向装置，包括机架、设于机架用于承载透明基板的基台、用于驱动基台直线移动的直线驱动机构、设于所述基台移动路径上的摩擦滚筒及用于驱动所述摩擦滚筒转动的滚动驱动机构；所述摩擦滚筒的表面附有摩擦布；还包括设于所述机架的超声装置，所述超声装置设有超声波发射口，所述超声波发射口朝向所述摩擦滚筒表面的摩擦布，用于将超声波传播到所述摩擦布。
其中，所述超声装置发出的超声波的传播方向位于所述摩擦滚筒的切线方向。
其中，所述超声波发射口的假想延长线与所述基台成45°角。
其中，所述超声波发射口的宽度大于等于所述摩擦滚筒的长度。
其中，所述超声波发射口为裂缝或豁口结构。
(三)有益效果
本公开的上述技术方案具有如下优点：采用超声波对摩擦布的布毛进行实时均一梳理，使得梳理后的布毛分布更加均匀，从而可以改善透明基板表面的配向摩擦条纹不均匀的问题，提升液晶显示面板的良品率。
附图说明
图1是本公开实施例摩擦配向装置主视图；
图2是本公开实施例摩擦配向装置左视图；
图3是本公开实施例摩擦配向方法示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
如图1和图2所示，本公开实施例提供的一种摩擦配向装置，包括机架107、超声装置106、基台101、直线驱动机构108、摩擦滚筒105和滚动驱动机构109(如图3所示)，基台101设于机架107上，用于承载透明基板102。直线驱动机构108用于驱动基台101直线移动，摩擦滚筒105表面附有摩擦布104。摩擦布104的材质可选为麻布或尼龙。摩擦滚筒105设于透明基板102的移动路径上，由滚动驱动机构驱动摩擦滚筒105滚动。具体的，本实施例中，机架107设有直线滑轨，基台101设于直线滑轨的滑块上，驱动机构108采用滚珠丝杠副与电机的组合，滚珠丝杠副与直线滑轨相平行布置，电机带动滚珠丝杠副的丝杆转动，摩擦滚筒105通过机架107上的支架可转动地设于直线滑轨上方。可选地，摩擦滚筒105设于基台101的上方，且摩擦滚筒105的中心轴与基台101的移动方向之间的角度可以在0°到90°的范围内调节，使摩擦滚筒105的中心轴与透明基板102呈一定角度，以满足对摩擦布104透明基板102作相对倾斜的摩擦。超声装置106设于机架107，且超声装置106设有超声波发射口，超声波发射口朝向摩擦滚筒105表面的摩擦布104，将超声波传播到所述摩擦布104。采用超声波可以对摩擦布104的布毛进行实时均一梳理，使得梳理后的 布毛分布更加均匀，从而改善透明基板102表面的配向摩擦条纹布均匀的问题。
进一步地，超声波发射口的宽度大于等于摩擦滚筒105的长度，且超声波发射口与摩擦滚筒105的中心轴平行。超声装置106发出的超声波的传播方向位于摩擦滚筒105的切线方向。超声波发射口为裂缝或豁口结构。超声波发射口的假想延长线与透明基板102的角度可以根据不同产品、不同的摩擦布104以及其他工艺条件相配合进行优化，可选为超声波发射口的假想延长线与透明基板102成45°角。优化超声装置106发出超声波的传播方向可以更加准确的梳理摩擦布104的布毛，提高超声波传播到摩擦布104表面的效率。
本公开提供的一种摩擦配向方法，可使用上述提供的摩擦配向装置，其包括以下步骤：
S1，提供表面具有配向膜的透明基板102，驱动透明基板102朝第一方向移动。具体的，表面具有配向膜的透明基板102的制作方法包括以下两个步骤：在透明基板102表面配置透明电极；然后在透明电极的表面形成一层配向膜103。其中，配向膜103的厚度一般介于
Figure PCTCN2015092495-appb-000001
Figure PCTCN2015092495-appb-000002
(埃)至
Figure PCTCN2015092495-appb-000003
之间，可选的，配向膜的厚度优选
Figure PCTCN2015092495-appb-000004
Figure PCTCN2015092495-appb-000005
和
Figure PCTCN2015092495-appb-000006
透明基板可采用玻璃基板。如图3所示，将透明基板102放置于上述摩擦配向装置的基台101上，直线驱动机构108驱动基台101及透明基板102沿第一方向移动，即沿图2和3中箭头A所指向的方向移动。
S2，在透明基板102移动过程中，以表面附有摩擦布的摩擦滚筒105对透明基板102表面的配向膜103进行滚动摩擦。可选的，摩擦滚筒105以底部的切线速度方向与透明基板102的行进方向相反的滚动方式对透明基板102表面的配向膜103进行滚动摩擦，如图2和3所示，摩擦滚筒105沿箭头B的方向转动。在滚动摩擦的同时，使用超声波对摩擦布104上的布毛实时进行梳理。超声波实时梳理摩擦布104上的布毛可以使得摩擦布104上的布毛更加均匀。
进一步地，在超声波工作过程中，超声波沿着摩擦滚筒105的切 线方向传播到摩擦布104的表面，超声波的传播方向与透明基板102移动的方向成45°角，即超声波的传播方向与第一方向的成45°角。可选的，超声波传播到摩擦布104的位置位于摩擦布104与配向膜103相摩擦接触的下游位置，并且超声波的频率小于等于5MHz。需要说明的是，本公开所述的下游位置是指以摩擦滚筒105与配向膜103的摩擦位置为基准，沿转动方向弧度180°以内的定义为下游。如此设计可以使得超声波更加准确的对摩擦布104的布毛进行梳理，使透明基板表面的配向摩擦条纹更加均匀。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (10)

  1. 一种摩擦配向方法，包括以下步骤：
    S1，提供表面具有配向膜的透明基板，驱动所述透明基板朝第一方向移动；
    S2，在所述透明基板移动过程中，以表面附有摩擦布的摩擦滚筒对所述透明基板表面的所述配向膜进行滚动摩擦；
    其中，步骤S2还包括：使用超声波对所述摩擦布上的布毛实时进行梳理。
  2. 根据权利要求1所述的摩擦配向方法，其中，在步骤S2中，所述超声波沿着所述摩擦滚筒的切线方向传播到所述摩擦布的表面。
  3. 根据权利要求1所述的摩擦配向方法，其中，在步骤S2中，所述超声波的传播方向与所述第一方向成45°角。
  4. 根据权利要求1所述的摩擦配向方法，其中，在步骤S2中，所述超声波传播到所述摩擦布的位置位于所述摩擦布与所述配向膜相摩擦接触的下游位置。
  5. 根据权利要求1所述的摩擦配向方法，其中，所述超声波的频率小于等于5MHz。
  6. 一种摩擦配向装置，包括机架、设于所述机架用于承载透明基板的基台、用于驱动所述基台直线移动的直线驱动机构、设于所述基台移动路径上的摩擦滚筒及用于驱动所述摩擦滚筒转动的滚动驱动机构；所述摩擦滚筒的表面附有摩擦布；其中：还包括设于所述机架的超声装置，所述超声装置设有超声波发射口，所述超声波发射口朝向所述摩擦滚筒表面的所述摩擦布，用于将超声波传播到所述摩擦布。
  7. 根据权利要求6所述的摩擦配向装置，其中，所述超声装置发出的超声波的传播方向位于所述摩擦滚筒的切线方向。
  8. 根据权利要求6所述的摩擦配向装置，其中，所述超声波发射口的假想延长线与所述基台成45°角。
  9. 根据权利要求6所述的摩擦配向装置，其中，所述超声波发射 口的宽度大于等于所述摩擦滚筒的长度。
  10. 根据权利要求6所述的摩擦配向装置，其中，所述超声波发射口为裂缝或豁口结构。
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