WO2013159305A1 - 配向电压施加装置及配向电压施加方法 - Google Patents

配向电压施加装置及配向电压施加方法 Download PDF

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Publication number
WO2013159305A1
WO2013159305A1 PCT/CN2012/074730 CN2012074730W WO2013159305A1 WO 2013159305 A1 WO2013159305 A1 WO 2013159305A1 CN 2012074730 W CN2012074730 W CN 2012074730W WO 2013159305 A1 WO2013159305 A1 WO 2013159305A1
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Prior art keywords
liquid crystal
crystal substrate
voltage applying
pressure plate
alignment voltage
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PCT/CN2012/074730
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English (en)
French (fr)
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莫圣鹏
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/641,129 priority Critical patent/US9316876B2/en
Publication of WO2013159305A1 publication Critical patent/WO2013159305A1/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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads
    • 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
    • G02F1/133—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
    • G02F1/133788—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 light irradiation, e.g. linearly polarised light photo-polymerisation
    • 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
    • G02F1/1393—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 the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133726—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films made of a mesogenic material
    • 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
    • G02F1/13775—Polymer-stabilized liquid crystal layers

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to an alignment voltage applying device and an alignment voltage applying method that can effectively apply an alignment voltage to a liquid crystal substrate that requires light alignment.
  • the performance requirements of the market for liquid crystal display panels are toward high contrast ratio, gray scale inversion (No Gray scale inversion), small color shift, high brightness Luminance), high color richness, high color saturation, fast response and wide viewing angle.
  • the technology that can achieve wide viewing angle requirements has a twisted nematic (Twist Nematic, TN) liquid crystal plus Wide vieing film, coplanar switching type (In-plane Switching, IPS) liquid crystal display panel, marginal field switching type (Fringe field Switching, FFS) LCD panel, multi-domain vertical alignment (Multi-domain vertically Alignment, MVA) LCD panel and other methods.
  • the multi-domain vertical alignment liquid crystal display panel has the best wide viewing angle effect, but the tilting direction of the alignment protrusions of the multi-domain vertical alignment liquid crystal display panel and the liquid crystal molecules around the alignment slit is often uncertain, resulting in light leakage. Further, the display contrast of the liquid crystal display panel is lowered. If the light shielding layer corresponding to the alignment bump or the alignment slit is provided to shield the light leakage, the display aperture ratio is limited, and the display brightness of the liquid crystal display panel cannot be improved.
  • the manner in which the polymer is stably aligned is to first dope the reactive monomer into the liquid crystal layer and apply a specific voltage to the liquid crystal layer.
  • the liquid crystal layer is irradiated with ultraviolet light at this voltage, the reactive monomer is polymerized and solidified.
  • a liquid crystal stabilizing layer is simultaneously formed on the substrates on both sides of the liquid crystal layer.
  • the aligning voltage application device is widely used in ultraviolet liquid crystal irradiation equipment and post-alignment inspection equipment, and the alignment voltage is passed through the probe of the alignment voltage application device (Probe A pad (Pad) with a liquid crystal substrate is applied to the corresponding liquid crystal layer.
  • FIG. 1 is a schematic plan view of a conventional alignment voltage applying device
  • FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1, 10 is a liquid crystal substrate
  • 20 is an alignment.
  • the voltage applying device, the alignment voltage applying device 20 is disposed around the liquid crystal substrate 10, wherein 21 is a pedestal, 22 is a probe disposed on the susceptor 21, and the susceptor 21 is driven up by a motor so that the probe 22 is disposed at A pad (not shown) at the edge of the liquid crystal substrate 10 is contacted to apply an alignment voltage.
  • the edge of the liquid crystal substrate 10 is easily deformed and bent (as in the case of B in FIG. 2), which causes a poor contact between the probe 22 and the spacer, and further causes poor alignment of the liquid crystal substrate 10 after the ultraviolet irradiation.
  • An object of the present invention is to provide an alignment voltage application device provided with a pressure plate and a corresponding alignment voltage application method.
  • the pressure applied to the liquid crystal substrate by the pressure plate can effectively contact the probe and the gasket without damaging the probe and the liquid crystal substrate.
  • the existing alignment voltage applying device is liable to cause damage to the probe and the liquid crystal substrate due to the bending of the liquid crystal substrate.
  • the present invention relates to an alignment voltage applying device comprising: a susceptor; a probe disposed on the susceptor for contacting a pad of a corresponding liquid crystal substrate; and a platen module for the corresponding liquid crystal substrate Pressing the edge, the platen module comprising: a pressure plate disposed on an opposite side of the probe; and a driving unit for driving the pressure plate to move relative to the probe; the effective width of the pressure plate ranges from 12.5 to 20 mm, the effective width of the press plate refers to the width of the contact surface with the liquid crystal substrate after the press plate is pressed; the length of the press plate ranges from 15 to 20 cm.
  • the present invention also relates to an alignment voltage applying device including a susceptor; a probe disposed on the susceptor for contacting a pad of a corresponding liquid crystal substrate; and a platen module for the corresponding liquid crystal substrate Pressing the edge, the platen module includes: a platen disposed on an opposite side of the probe; and a drive unit for driving the platen to move relative to the probe.
  • the effective width of the pressure plate ranges from 12.5 to 20 mm, and the effective width of the pressure plate refers to the width of the contact surface with the liquid crystal substrate after the pressure plate is pressed. .
  • the platen has a length ranging from 15 to 20 cm.
  • the driving unit includes: a driving motor; and a driving shaft controlled by the driving motor to be coupled to the platen and to drive the platen to move relative to the probe.
  • the alignment voltage applying device further includes: a calibration module for detecting a degree of bending of an edge of the liquid crystal substrate.
  • the calibration module is a pressure detecting module that detects a multi-point pressure of the pressure plate.
  • the calibration module is a step meter for detecting a degree of bending of an edge of the liquid crystal substrate.
  • the present invention also relates to an alignment voltage applying method, wherein the alignment voltage applying device includes a susceptor, a probe disposed on the susceptor, and a platen module, wherein the platen module includes a platen and a driving unit;
  • the alignment voltage application Methods include:
  • the driving unit drives the pressure plate to press an edge of the liquid crystal substrate to planarize an edge of the liquid crystal substrate
  • the method further includes the steps of: A1, measuring the degree of bending of the edge of the liquid crystal substrate; and the step B is specifically: according to the measurement result in step A1,
  • the driving unit drives the pressing plate to pressurize an edge of the liquid crystal substrate to planarize an edge of the liquid crystal substrate.
  • the effective width of the platen ranges from 12.5 to 20 mm, and the effective width of the platen refers to the width of the contact surface with the liquid crystal substrate after the platen is pressed.
  • the platen has a length ranging from 15 to 20 cm.
  • the driving unit includes: a driving motor; and a driving shaft controlled by the driving motor to be coupled to the platen and to drive the platen to move relative to the probe.
  • the alignment voltage applying device further includes a calibration module, and the step A1 specifically measures the degree of bending of the edge of the liquid crystal substrate using the calibration module.
  • the calibration module is a pressure detecting module that detects a multi-point pressure of the platen.
  • the calibration module is a step meter for detecting a degree of bending of an edge of the liquid crystal substrate.
  • the alignment voltage applying device of the present invention is provided with a pressing plate, and the pressing of the liquid crystal substrate can effectively contact the probe with the spacer without damaging the probe.
  • the needle and the liquid crystal substrate solve the technical problem that the existing alignment voltage applying device is liable to cause damage to the probe and the liquid crystal substrate due to the bending of the liquid crystal substrate.
  • 1 is a schematic plan view showing a conventional alignment voltage applying device
  • Figure 2 is a cross-sectional view taken along line A-A' of Figure 1;
  • 3A is a schematic structural view showing a state in which a pressure plate of an alignment voltage applying device of the present invention is not pressed;
  • Figure 3B is a cross-sectional view taken along line C-C' of Figure 3A;
  • FIG. 4A is a schematic structural view of a pressure plate of the alignment voltage applying device of the present invention when a pressure plate has been pressed;
  • Figure 4B is a cross-sectional view taken in the direction of D-D' shown in Figure 4A;
  • Fig. 5 is a flow chart showing a preferred embodiment of the alignment voltage applying method of the present invention.
  • FIG. 3A is a schematic structural view of the alignment voltage applying device of the present invention when the pressure plate is not pressed
  • FIG. 3B is a cross-sectional view taken along the line C-C' shown in FIG. 3A.
  • the alignment voltage applying device includes a base 31, a probe 32 and a pressure plate module.
  • the probe 32 is disposed on the base 31 for contacting the corresponding liquid crystal substrate 34.
  • the pressure plate module includes a pressure plate 331 and a driving unit, and the pressure plate 331
  • the opposite side of the probe 32 (above the probe 32 in the figure) is used to press the edge of the corresponding liquid crystal substrate 34; the driving unit is used to drive the pressure plate 331 to move relative to the probe 32 (the opposite is in the figure)
  • the probe 32 moves up and down). Since the edge of the liquid crystal substrate 34 is generally thin (the extension length of the thinner portion is generally less than 12.5 mm), the effective width of the pressure plate 331 ranges from 12.5 mm to 20 mm, so that the pressure plate 331 can effectively cover the liquid crystal after being pressed.
  • the pressure is applied to 331, the bending of the liquid crystal substrate 34 is effectively attenuated or eliminated.
  • the driving unit of the alignment voltage applying device of the present invention includes a driving motor (not shown) and a driving shaft 332 controlled by a driving motor, coupled to the pressure plate 331 and driving the pressing plate 331 to move relative to the probe 32 (in the figure) For the relative movement of the probe 32 up and down).
  • a driving motor not shown
  • a driving shaft 332 controlled by a driving motor, coupled to the pressure plate 331 and driving the pressing plate 331 to move relative to the probe 32 (in the figure) For the relative movement of the probe 32 up and down).
  • FIG. 4A is a structural schematic view of the alignment voltage applying device of the present invention when the pressure plate has been pressed
  • FIG. 4B is in the D-D' direction shown in FIG. 4A. Sectional view.
  • the alignment voltage applying device of the present invention is used, the edge of the liquid crystal substrate 34 is first inserted between the probe 32 and the pressing plate 331; then the susceptor 31 is driven to make the probe 32 on the susceptor 31 and the spacer of the liquid crystal substrate 34. Contact is shown in Figures 3A and 3B.
  • the driving unit drives the pressing plate 331 to pressurize the edge of the liquid crystal substrate 34 (the driving mechanism controls the driving shaft 332 to realize the vertical movement of the pressing plate 331) to planarize the edge of the liquid crystal substrate 34, thereby ensuring the gasket of the probe 32 and the liquid crystal substrate 34. Stable and reliable contact, as shown in Figures 4A and 4B. Finally, an alignment voltage is applied to the pads of the liquid crystal substrate 34 by the probes 32.
  • the alignment voltage applying device of the present invention may further include a calibration module for detecting the degree of bending of the edge of the liquid crystal substrate 34.
  • the calibration module can be a pressure detection module or a step meter.
  • the calibration module is a pressure detecting module, when the pressure plate 331 presses the edge of the liquid crystal substrate 34, it is possible to measure whether the pressure at a plurality of points on the pressure plate 331 is uniform to determine whether the pressing force of the pressure plate 331 is already in place.
  • the degree of bending (ie, surface morphology) of the edge of the liquid crystal substrate 34 can be detected before the pressure plate 331 presses the edge of the liquid crystal substrate 34; if the degree of bending is less than a set value, the liquid crystal substrate 34 is illustrated.
  • the degree of bending does not affect the voltage application operation of the voltage applying device, and the pressing can be performed without using the pressing plate 331; if the degree of bending is greater than a set value, it is necessary to apply pressure using the pressing plate 331 to weaken or eliminate the bending of the liquid crystal substrate 34.
  • the present invention also relates to an alignment voltage application method of an alignment voltage applying device.
  • FIG. 5 is a schematic flow chart of a preferred embodiment of the alignment voltage applying method of the present invention.
  • the alignment voltage applying device includes a base, a probe disposed on the base, and a pressure plate module; wherein the pressure plate module includes a pressure plate and a driving unit, and the pressure plate is disposed above the probe for pressing the edge of the corresponding liquid crystal substrate, The drive unit is used to drive the platen movement.
  • the alignment voltage application method of the present invention includes:
  • Step 501 measuring a degree of bending of an edge of the liquid crystal substrate
  • Step 502 driving the base to contact the probe with the pad of the liquid crystal substrate
  • Step 503 according to the measurement result of step 501, the driving unit drives the pressure plate to press the edge of the liquid crystal substrate to planarize the edge of the liquid crystal substrate;
  • Step 504 Apply an alignment voltage to the pad by using the probe.
  • the method ends at step 504.
  • the effective width of the pressure plate ranges from 12.5 mm to 20 mm, so that the pressure plate can effectively cover the thin portion of the edge of the liquid crystal substrate, wherein the effective width of the pressure plate refers to The width of the contact surface of the pressure plate and the liquid crystal substrate after the pressure plate is pressed; and the length of the pressure plate is generally 15 cm to 20 cm, so that the pressure of the liquid crystal substrate is effectively weakened or eliminated when the pressure plate is pressed.
  • the sequence of step 502 and step 503 can also be exchanged, and the corresponding technical problem can also be solved after the exchange to achieve the technical effect of the present invention.
  • the specific steps of the alignment voltage applying method of the present invention are the same as or similar to those of the specific embodiment of the above-described alignment voltage applying device. For details, refer to the specific embodiment of the above-described alignment voltage applying device.
  • the alignment voltage applying device and the alignment voltage applying method of the present invention are provided with a pressing plate, and the pressing of the pressing plate on the liquid crystal substrate enables the probe to be in effective contact with the spacer without damaging the probe and the liquid crystal substrate to solve the existing alignment voltage.
  • the application device is susceptible to the technical problem of damage of the probe and the liquid crystal substrate due to the bending of the liquid crystal substrate.

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Description

配向电压施加装置及配向电压施加方法 技术领域
本发明涉及液晶显示领域，特别是涉及一种可有效对需要光配向的液晶基板施加配向电压的配向电压施加装置及配向电压施加方法。
 背景技术
市场对于液晶显示面板的性能要求是朝向高对比（High contrast ratio）、无灰阶反转（No gray scale inversion）、色偏小（Little color shift）、亮度高（High luminance）、高色彩丰富度、高色彩饱和度、快速反应与广视角等特征。目前，能够达成广视角要求的技术有扭转向列型（Twist nematic，TN）液晶加上广视角膜（Wide vieing film）、共平面切换型（In-plane switching，IPS）液晶显示面板、边际场切换型（Fringe field switching，FFS）液晶显示面板、多域垂直配向性（Multi-domain vertically alignment，MVA）液晶显示面板等方式。
其中多域垂直配向性液晶显示面板的广视角效果最为出色，但是，多域垂直配向性液晶显示面板的配向凸块与配向狭缝周边的液晶分子的倾倒方向往往不确定，而造成漏光的情况，进一步使得液晶显示面板的显示对比降低。若为了遮蔽漏光而设置对应于配向凸块或配向狭缝的遮光层，又会使显示开口率受到限制，则液晶显示面板的显示亮度仍然无法提升。
因此一种形成多方向配向的聚合物稳定配向（Polymer-stablized alignment，PSA）的配向方法被提出，以改善多域垂直配向式液晶显示面板显示对比不佳的问题。
聚合物稳定配向的方式需先将反应性单体掺杂于液晶层中，并施与液晶层特定的电压，在此电压下使用紫外线照射液晶层，则反应性单体会聚合并固化，从而在液晶层两侧的基板上同时形成液晶稳定层。
配向电压施加装置广泛应用于紫外线液晶照射设备和配向后检查设备上，配向电压通过配向电压施加装置的探针（Probe pin）与液晶基板的衬垫（Pad）施加到相应的液晶层上。如图1和图2所示，图1为现有的配向电压施加装置的俯视结构示意图，图2为按图1所示的A-A’方向的截面图，10为液晶基板，20为配向电压施加装置，配向电压施加装置20设置在液晶基板10的四周，其中21为基座，22为设置在基座21上的探针，基座21通过马达带动上升，使得探针22与设置在液晶基板10边缘的衬垫（图中未示出）接触以施加配向电压。但是液晶基板10的边缘由于制作原因容易变形弯曲（如图2的B处），从而造成探针22与衬垫接触不良，进而导致紫外线照射后的液晶基板10的配向不良。
目前，只能通过人工微调探针22上升形成来避免这个问题，但探针22如上升过高又会使探针22与衬垫过分接触，可能导致探针22和液晶基板10的损坏。
故，有必要提供一种配向电压施加装置及配向电压施加方法，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种设置有压板的配向电压施加装置及相应的配向电压施加方法，压板对液晶基板的施压可以使探针与衬垫有效接触，而不会损坏探针和液晶基板，以解决现有的配向电压施加装置由于液晶基板的弯曲，易导致探针和液晶基板损坏的技术问题。
 技术解决方案
本发明涉及一种配向电压施加装置，其中包括：基座；探针，设置在所述基座上，用于接触相应的液晶基板的衬垫；以及压板模块，用于对相应的液晶基板的边缘施压，所述压板模块包括：压板，设置在所述探针的相对一侧；以及驱动单元，用于驱动所述压板相对所述探针移动；所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度；所述压板的长度范围为15至20厘米。
本发明还涉及一种配向电压施加装置，其中包括基座；探针，设置在所述基座上，用于接触相应的液晶基板的衬垫；以及压板模块，用于对相应的液晶基板的边缘施压，所述压板模块包括：压板，设置在所述探针的相对一侧；以及驱动单元，用于驱动所述压板相对所述探针移动。
在本发明所述的配向电压施加装置中，所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度。
在本发明所述的配向电压施加装置中，所述压板的长度范围为15至20厘米。
在本发明所述的配向电压施加装置中，所述驱动单元包括：驱动马达；以及驱动轴，由所述驱动马达控制，与所述压板连接并驱动所述压板相对所述探针移动。
在本发明所述的配向电压施加装置中，所述配向电压施加装置还包括：校准模块，用于检测所述液晶基板的边缘的弯曲程度。
在本发明所述的配向电压施加装置中，所述校准模块为检测所述压板的多点压力的压力检测模块。
在本发明所述的配向电压施加装置中，所述校准模块为用于检测所述液晶基板的边缘的弯曲程度的台阶仪。
本发明还涉及一种配向电压施加方法，其中所述配向电压施加装置包括基座、设置在所述基座上的探针以及压板模块，其中压板模块包括压板以及驱动单元；所述配向电压施加方法包括：
A、驱动所述基座使所述探针与液晶基板的衬垫接触；
B、所述驱动单元驱动所述压板对所述液晶基板的边缘施压，使所述液晶基板的边缘平坦化；
C、通过所述探针对所述衬垫施加配向电压。
在本发明的配向电压施加方法中，在步骤A之前还包括步骤：A1、对所述液晶基板的边缘的弯曲程度进行测量；所述步骤B具体为：根据步骤A1中的测量结果，所述驱动单元驱动所述压板对所述液晶基板的边缘施压，使所述液晶基板的边缘平坦化。
在本发明的配向电压施加方法中，所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度。
在本发明的配向电压施加方法中，所述压板的长度范围为15至20厘米。
在本发明的配向电压施加方法中，所述驱动单元包括：驱动马达；以及驱动轴，由所述驱动马达控制，与所述压板连接并驱动所述压板相对所述探针移动。
在本发明的配向电压施加方法中，所述配向电压施加装置还包括校准模块，所述步骤A1具体为使用所述校准模块对所述液晶基板的边缘的弯曲程度进行测量。
在本发明的配向电压施加方法中，所述校准模块为检测所述压板的多点压力的压力检测模块。
在本发明的配向电压施加方法中，所述校准模块为用于检测所述液晶基板的边缘的弯曲程度的台阶仪。
 有益效果
相较于现有的配向电压施加装置和配向电压施加方法，本发明的配向电压施加装置设置有压板，该压板对液晶基板的施压可以使探针与衬垫有效接触，而不会损坏探针和液晶基板，解决了现有配向电压施加装置由于液晶基板的弯曲，易导致探针和液晶基板损坏的技术问题。
 附图说明
图1为现有的配向电压施加装置的俯视结构示意图；
图2为按图1所示的A-A’方向的截面图；
图3A为本发明的配向电压施加装置的压板未施压时的结构示意图；
图3B为按图3A所示的C-C’方向的截面图；
图4A为本发明的配向电压施加装置的压板已施压时的结构示意图；
图4B为按图4A所示的D-D’方向的截面图；
图5为本发明的配向电压施加方法的优选实施例的流程示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
请参照图3A和图3B，其中图3A为本发明的配向电压施加装置的压板未施压时的结构示意图，图3B为按图3A所示的C-C’方向的截面图。其中配向电压施加装置包括基座31、探针32以及压板模块，探针32设置在基座31上，用于接触相应的液晶基板34的衬垫；压板模块包括压板331以及驱动单元，压板331设置在探针32的相对一侧（图中为探针32的上方），用于对相应的液晶基板34的边缘施压；驱动单元用于驱动压板331相对探针32移动（图中为相对探针32上下运动）。由于液晶基板34边缘的一般较薄（较薄部分的延伸长度一般小于12.5毫米），因此压板331的有效宽度范围为12.5毫米至20毫米，这样确保压板331施压后，可以有效的覆盖住液晶基板34边缘较薄的部分，其中压板331的有效宽度是指压板331施压后，压板331与液晶基板34的接触面的宽度；同时压板331的长度范围一般为15厘米至20厘米，以便压板331施压时有效的减弱或消除液晶基板34的弯曲。
本发明的配向电压施加装置的驱动单元包括驱动马达（图中未示出）以及驱动轴332，该驱动轴332由驱动马达控制，与压板331连接并驱动压板331相对探针32移动（图中为相对探针32上下运动）。当压板331位于上限位时，压板331不与液晶基板34接触，并远离探针32；当压板331位于下限位时，压板331对液晶基板34接触并施压，以减弱或消除液晶基板34的弯曲。
请参照图3A、图3B、图4A以及图4B，其中图4A为本发明的配向电压施加装置的压板已施压时的结构示意图，图4B为按图4A所示的D-D’方向的截面图。本发明的配向电压施加装置使用时，首先将液晶基板34的边缘伸入到探针32与压板331之间；然后驱动基座31使基座31上的探针32与液晶基板34的衬垫接触，如图3A和图3B所示。驱动单元驱动压板331对液晶基板34的边缘施压（通过驱动马达控制驱动轴332实现压板331的上下运动），使液晶基板34的边缘平坦化，这样保证探针32与液晶基板34的衬垫的稳定可靠的接触，如图4A和图4B所示。最后通过探针32对液晶基板34的衬垫施加配向电压。
本发明的配向电压施加装置还可包括校准模块，该校准模块用于检测液晶基板34的边缘的弯曲程度。该校准模块可以是压力检测模块或台阶仪。如校准模块为压力检测模块，可以在压板331对液晶基板34的边缘施压时，测量压板331上多个点的压力是否均匀，以判断压板331的施压是否已经到位。如校准模块为台阶仪，可以在压板331对液晶基板34的边缘施压前，检测液晶基板34的边缘的弯曲程度（即表面形态）；如弯曲程度小于一设定值，说明液晶基板34的弯曲程度对电压施加装置的电压施加操作不会产生影响，可不使用压板331进行施压；如弯曲程度大于一设定值，则需要使用压板331进行施压以减弱或消除液晶基板34的弯曲。
本发明还涉及一种配向电压施加装置的配向电压施加方法，如图5所示，图5为本发明的配向电压施加方法的优选实施例的流程示意图。该配向电压施加装置包括基座、设置在基座上的探针以及压板模块；其中压板模块包括压板以及驱动单元，压板设置在探针的上方，用于对相应的液晶基板的边缘施压，驱动单元用于驱动压板上下运动。本发明的配向电压施加方法包括：
步骤501、对液晶基板的边缘的弯曲程度进行测量；
步骤502、驱动基座使探针与液晶基板的衬垫接触；
步骤503、根据步骤501的测量结果，驱动单元驱动压板对液晶基板的边缘施压，使液晶基板的边缘平坦化；
步骤504、通过所述探针对所述衬垫施加配向电压；
该方法结束于步骤504。
由于液晶基板边缘的厚度一般较薄，因此压板的有效宽度范围为12.5毫米至20毫米，这样确保压板施压后，可以有效的覆盖住液晶基板边缘较薄的部分，其中压板的有效宽度是指压板施压后，压板与液晶基板的接触面的宽度；同时压板的长度范围一般为15厘米至20厘米，以便压板施压时有效的减弱或消除液晶基板的弯曲。其中步骤502和步骤503的顺序也可交换，交换后同样也可解决相应的技术问题，达到本发明的技术效果。
本发明的配向电压施加方法的具体步骤与上述的配向电压施加装置的具体实施例的使用方法相同或相似，具体请参见上述配向电压施加装置的具体实施例。
本发明的配向电压施加装置及配向电压施加方法设置有压板，压板对液晶基板的施压可以使探针与衬垫有效接触，而不会损坏探针和液晶基板，以解决现有的配向电压施加装置由于液晶基板的弯曲，易导致探针和液晶基板损坏的技术问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (16)

  1. 一种配向电压施加装置，其中包括：
    基座；
    探针，设置在所述基座上，用于接触相应的液晶基板的衬垫；以及
    压板模块，用于对相应的液晶基板的边缘施压，所述压板模块包括：
    压板，设置在所述探针的相对一侧；以及
    驱动单元，用于驱动所述压板相对所述探针移动；
    所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度；
    所述压板的长度范围为15至20厘米。
  2. 一种配向电压施加装置，其中包括：
    基座；
    探针，设置在所述基座上，用于接触相应的液晶基板的衬垫；以及
    压板模块，用于对相应的液晶基板的边缘施压，所述压板模块包括：
    压板，设置在所述探针的相对一侧；以及
    驱动单元，用于驱动所述压板相对所述探针移动。
  3. 根据权利要求2所述的配向电压施加装置，其中
    所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度。
  4. 根据权利要求2所述的配向电压施加装置，其中
    所述压板的长度范围为15至20厘米。
  5. 根据权利要求2所述的配向电压施加装置，其中所述驱动单元包括：
    驱动马达；以及
    驱动轴，由所述驱动马达控制，与所述压板连接并驱动所述压板相对所述探针移动。
  6. 根据权利要求2所述的配向电压施加装置，其中所述配向电压施加装置还包括：
    校准模块，用于检测所述液晶基板的边缘的弯曲程度。
  7. 根据权利要求6所述的配向电压施加装置，其中所述校准模块为检测所述压板的多点压力的压力检测模块。
  8. 根据权利要求6所述的配向电压施加装置，其中所述校准模块为用于检测所述液晶基板的边缘的弯曲程度的台阶仪。
  9. 一种配向电压施加方法，其中所述配向电压施加装置包括基座、设置在所述基座上的探针以及压板模块，其中压板模块包括压板以及驱动单元；所述配向电压施加方法包括：
    A、驱动所述基座使所述探针与液晶基板的衬垫接触；
    B、所述驱动单元驱动所述压板对所述液晶基板的边缘施压，使所述液晶基板的边缘平坦化；
    C、通过所述探针对所述衬垫施加配向电压。
  10. 根据权利要求9所述的配向电压施加方法，其中在步骤A之前还包括步骤：
    A1、对所述液晶基板的边缘的弯曲程度进行测量；
    所述步骤B为：
    根据步骤A1中的测量结果，所述驱动单元驱动所述压板对所述液晶基板的边缘施压，使所述液晶基板的边缘平坦化。
  11. 根据权利要求9所述的配向电压施加方法，其中所述压板的有效宽度范围为12.5至20毫米，所述压板的有效宽度是指所述压板施压后，与所述液晶基板的接触面的宽度。
  12. 根据权利要求9所述的配向电压施加方法，其中所述压板的长度范围为15至20厘米。
  13. 根据权利要求9所述的配向电压施加方法，其中所述驱动单元包括：
    驱动马达；以及
    驱动轴，由所述驱动马达控制，与所述压板连接并驱动所述压板相对所述探针移动。
  14. 根据权利要求10所述的配向电压施加方法，其中所述配向电压施加装置还包括校准模块，
    所述步骤A1具体为使用所述校准模块对所述液晶基板的边缘的弯曲程度进行测量。
  15. 根据权利要求14所述的配向电压施加方法，其中所述校准模块为检测所述压板的多点压力的压力检测模块。
  16. 根据权利要求14所述的配向电压施加方法，其中所述校准模块为用于检测所述液晶基板的边缘的弯曲程度的台阶仪。
PCT/CN2012/074730 2012-04-24 2012-04-26 配向电压施加装置及配向电压施加方法 Ceased WO2013159305A1 (zh)

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854646B (zh) * 2012-09-25 2015-11-25 深圳市华星光电技术有限公司 液晶基板的固化电压施加装置
KR102242439B1 (ko) * 2014-09-30 2021-04-20 삼성디스플레이 주식회사 곡면형 액정 표시 장치
CN104464583B (zh) * 2014-12-09 2018-05-25 合肥鑫晟光电科技有限公司 一种点灯检测装置以及方法
CN105892176A (zh) * 2016-06-15 2016-08-24 深圳市华星光电技术有限公司 一种液晶显示面板的走线结构及其制作方法
KR102608091B1 (ko) * 2016-10-07 2023-12-04 삼성디스플레이 주식회사 표시 장치 및 이의 제조 방법
CN107037636A (zh) * 2017-06-01 2017-08-11 深圳市华星光电技术有限公司 一种液晶基板的电压施加装置及施压方法
CN108008580B (zh) * 2018-01-05 2020-06-16 惠科股份有限公司 基板加电装置及其设备
CN108181742A (zh) * 2018-01-08 2018-06-19 深圳市华星光电半导体显示技术有限公司 治具、调节工件平坦的方法及液晶面板的配向方法
CN108761852A (zh) * 2018-04-03 2018-11-06 深圳市华星光电半导体显示技术有限公司 一种调控加电探针与玻璃基板接触的装置、系统及方法
CN109709724B (zh) * 2019-01-16 2021-09-03 武汉精立电子技术有限公司 一种用于液晶配向驱动系统的自校准方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080000999A (ko) * 2006-06-28 2008-01-03 엘지.필립스 엘시디 주식회사 평판 디스플레이 패널의 검사 장치
CN201222149Y (zh) * 2008-06-26 2009-04-15 上海广电光电子有限公司 摩擦配向装置
CN201233490Y (zh) * 2008-07-09 2009-05-06 佳升科技有限公司 液晶配向导电接触模组
CN101833191A (zh) * 2009-03-09 2010-09-15 友达光电股份有限公司 半反透式聚合物稳定配向面板的制造装置及方法
CN102136234A (zh) * 2010-01-25 2011-07-27 寇地斯股份有限公司 用于测试微间距阵列的探针单元

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3150826B2 (ja) * 1993-06-21 2001-03-26 松下電器産業株式会社 液晶パネル及びその製造方法
KR100471341B1 (ko) * 1996-05-23 2005-07-21 제네시스 테크놀로지 가부시키가이샤 콘택트프로브및그것을구비한프로브장치
JP3401148B2 (ja) * 1996-08-30 2003-04-28 株式会社ヨコオ 基板パターンの検査方法およびそれに用いる検査装置
US6631557B2 (en) * 2000-01-31 2003-10-14 Shibaura Mechatronics Corporation Method and apparatus for mounting electronic device
KR101328210B1 (ko) * 2005-02-10 2013-11-14 파나소닉 주식회사 부품 실장 장치, 및 기판 반송 방법
JP4655760B2 (ja) * 2005-05-26 2011-03-23 セイコーエプソン株式会社 アライメント治具及びその製造方法並びに液体噴射ヘッドユニットの製造方法
JP4379435B2 (ja) * 2006-05-17 2009-12-09 株式会社日立プラントテクノロジー 基板組立装置とそれを用いた基板組立方法
JP2008198739A (ja) * 2007-02-09 2008-08-28 Tokyo Electron Ltd 載置台構造、これを用いた処理装置及びこの装置の使用方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080000999A (ko) * 2006-06-28 2008-01-03 엘지.필립스 엘시디 주식회사 평판 디스플레이 패널의 검사 장치
CN201222149Y (zh) * 2008-06-26 2009-04-15 上海广电光电子有限公司 摩擦配向装置
CN201233490Y (zh) * 2008-07-09 2009-05-06 佳升科技有限公司 液晶配向导电接触模组
CN101833191A (zh) * 2009-03-09 2010-09-15 友达光电股份有限公司 半反透式聚合物稳定配向面板的制造装置及方法
CN102136234A (zh) * 2010-01-25 2011-07-27 寇地斯股份有限公司 用于测试微间距阵列的探针单元

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