WO2014089876A1 - 遮挡装置、框胶硬化机及框胶硬化方法 - Google Patents

遮挡装置、框胶硬化机及框胶硬化方法 Download PDF

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Publication number
WO2014089876A1
WO2014089876A1 PCT/CN2012/087178 CN2012087178W WO2014089876A1 WO 2014089876 A1 WO2014089876 A1 WO 2014089876A1 CN 2012087178 W CN2012087178 W CN 2012087178W WO 2014089876 A1 WO2014089876 A1 WO 2014089876A1
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Prior art keywords
adsorption unit
shielding plate
electromagnetic adsorption
shielding
sealant
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PCT/CN2012/087178
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English (en)
French (fr)
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朱美娜
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深圳市华星光电技术有限公司
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Priority to US13/813,657 priority Critical patent/US20140166203A1/en
Publication of WO2014089876A1 publication Critical patent/WO2014089876A1/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
    • G02F1/1303—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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
    • G02F2201/086—UV absorbing

Definitions

  • the invention relates to the field of liquid crystal display technology, in particular to a shielding device, a frame glue curing machine and a frame rubber hardening method.
  • the liquid crystal display panel is composed of two transparent substrates and a liquid crystal sealed between the substrates.
  • the liquid crystal is filled and sealed between the transparent substrates, thereby forming a liquid crystal cell (Liquid Crystal Cell) is between the two glass substrates, and the liquid crystal cell is sealed between the two glass substrates by a frame glue. Curing the sealant between the two glass substrates to form a liquid crystal display panel.
  • Liquid Crystal Cell Liquid Crystal Cell
  • liquid crystal display such as polymer stabilized vertical alignment (Polymer Stabilized Vertical) Alignment, PSVA)
  • the liquid crystal between two transparent substrates is doped with reactive monomer (reactive Monomer) mixed with liquid crystal molecules, wherein the surface of each transparent substrate is coated with polyimide (PI) as an alignment substrate.
  • reactive monomer reactive Monomer
  • PI polyimide
  • the reactive monomer is phase separated from the liquid crystal molecules (phase The phenomenon of separation forms a polymer on the alignment substrate of the transparent substrate. Due to the interaction between the polymer and the liquid crystal molecules, the liquid crystal molecules are aligned along the direction of the polymer molecules, and therefore, the liquid crystal molecules between the transparent substrates may have a pretilt angle (pre-tilt) Angle).
  • the reaction type monomer doped in the liquid crystal of the PSVA type liquid crystal display is reacted by ultraviolet light
  • the frame glue of the PSVA type liquid crystal display panel is cured, the liquid crystal display panel is masked by a shielding device.
  • the LCD area is masked by a shielding device.
  • the shielding device generally sputters a layer of metal on the plain glass, and etches the desired pattern on the metal, and then vacuum-adsorbs the shielding device through the quartz rod, and the shielding device is between the ultraviolet lamp tube and the liquid crystal panel, and the shielding device The part of the ultraviolet light is blocked, so that the liquid crystal layer located in the display area of the liquid crystal panel is not irradiated by the ultraviolet light, and the ultraviolet light can be irradiated onto the sealant through the shielding device to cure the sealant.
  • the quartz rod is composed of quartz, both of which are hard solids.
  • the surface of the shielding device and the surface of the quartz rod are required to be very It is flat and needs to achieve a high degree of cleanliness, and requires the processing of quartz rods to be very precise, which makes the price very high, and the way in which the hard solids are connected by vacuum is relatively unreliable.
  • the main object of the present invention is to provide a shielding device, a sealant hardening machine and a frame hardening method, which aim to make the adsorption of the shielding device more secure and reduce the manufacturing cost and maintenance cost of the sealant hardening machine.
  • the present invention provides a shielding device, the shielding device includes a shielding plate and an electromagnetic adsorption unit, the shielding plate includes a shielding pattern and a light transmitting area, and the electromagnetic adsorption unit is configured to adsorb the shielding plate.
  • the size and shape of the occlusion pattern are the same as the size and shape of the display area of the liquid crystal panel.
  • the electromagnetic adsorption unit includes an adsorption portion for adsorbing the shielding plate, an energization portion connected to the adsorption portion, and a wire wound around the conduction portion.
  • the wire After applying a voltage to the wire, the wire causes magnetic attraction on the adsorption portion of the electromagnetic adsorption unit, and the adsorption portion and the shielding pattern of the shielding plate attract each other; after the power is off, the adsorption of the electromagnetic adsorption unit Degaussing, the shielding plate is separated from the electromagnetic adsorption unit by gravity.
  • the adsorption portion of the electromagnetic adsorption unit is made of a mild steel material.
  • the shielding pattern of the shielding plate is made of a raw magnet material.
  • the invention also provides a sealant hardening machine, comprising a plurality of ultraviolet light sources, further comprising a shielding device, the shielding device comprising a shielding plate and an electromagnetic adsorption unit, the shielding plate comprising a shielding pattern and a light transmitting area; the electromagnetic adsorption unit Used to adsorb the shielding plate.
  • the electromagnetic adsorption unit includes an adsorption portion for adsorbing the shielding plate, an energization portion connected to the adsorption portion, and a wire wound around the conduction portion.
  • the wire After applying a voltage to the wire, the wire causes magnetic attraction on the adsorption portion of the electromagnetic adsorption unit, and the adsorption portion and the shielding pattern of the shielding plate attract each other; after the power is off, the adsorption of the electromagnetic adsorption unit Degaussing, the shielding plate is separated from the electromagnetic adsorption unit by gravity.
  • the adsorption portion of the electromagnetic adsorption unit is made of a mild steel material.
  • the shielding pattern of the shielding plate is made of a raw magnet material.
  • the size and shape of the occlusion pattern are the same as the size and shape of the display area of the liquid crystal panel.
  • the sealant hardening machine further comprises a guide rail, and one end of the energizing portion of the electromagnetic adsorption unit is engaged in the guide rail, and the electromagnetic adsorption unit is slidable along the guide rail.
  • the invention further provides a sealant hardening method, comprising:
  • the ultraviolet light source is turned on, and the ultraviolet light is irradiated onto the sealant through the shielding plate to harden the sealant.
  • the applying a voltage to the electromagnetic adsorption unit, causing the electromagnetic adsorption unit to adsorb the shielding plate comprises:
  • the occlusion pattern of the shielding plate is adsorbed by the adsorption portion of the electromagnetic adsorption unit, so that the shielding plate is adsorbed on the electromagnetic adsorption unit.
  • the ultraviolet light source is turned on, the ultraviolet light is irradiated onto the sealant through the shielding plate to harden the sealant, and further includes:
  • the electromagnetic adsorption unit After the power is turned off, the electromagnetic adsorption unit is demagnetized, and the shielding plate is separated from the electromagnetic adsorption unit by gravity.
  • the electromagnetic adsorption unit of the invention electromagnetically adsorbs the shielding plate, so the flatness and the cleanliness of the surface of the shielding plate are required to be low, thereby reducing the manufacturing cost and the maintenance cost of the frame hardening machine; meanwhile, the shielding plate can be made The adsorption is more secure.
  • FIG. 1 is a schematic structural view of a preferred embodiment of a shielding device of the present invention
  • FIG. 2 is a schematic structural view of an electromagnetic adsorption unit of a shielding device of the present invention
  • FIG. 3 is a schematic structural view of a preferred embodiment of a sealant hardening machine of the present invention.
  • FIG. 4 is a schematic flow chart of a first embodiment of a sealant hardening method according to the present invention.
  • FIG. 5 is a schematic flow chart of adsorbing a shielding baffle in the frame rubber hardening method of the present invention
  • FIG. 6 is a schematic flow chart of a second embodiment of a sealant hardening method according to the present invention.
  • FIG. 1 is a schematic structural view of a shielding device according to a preferred embodiment of the present invention
  • FIG. 2 is a schematic structural view of an electromagnetic adsorption unit of a shielding device according to the present invention
  • Schematic diagram of the structure
  • the sealant hardening machine provided in this embodiment comprises a shielding device 1 and a plurality of ultraviolet light sources 2 for providing ultraviolet light.
  • the shielding device 1 is configured to block part of the ultraviolet light in the process of hardening the sealant of the liquid crystal panel by ultraviolet light, so that the ultraviolet light only illuminates the sealant of the liquid crystal panel, and the display area of the liquid crystal panel is not irradiated by the ultraviolet light.
  • the shielding device 1 includes a shielding plate 10 and an electromagnetic adsorption unit 11.
  • the shielding plate 10 includes a substrate 102 and a shielding pattern 101 formed on the substrate 102.
  • the region where the shielding pattern 101 is not formed by the substrate 102 forms a light transmitting region 103.
  • the shielding pattern 101 is made of a raw magnet material containing a metal such as iron, cobalt or nickel. It can also be made of an alloy material containing a metal such as iron, cobalt or nickel.
  • the size and shape of the occlusion pattern 101 are the same as the size and shape of the display area of the liquid crystal panel.
  • the electromagnetic adsorption unit 11 is for adsorbing the shielding plate 10.
  • the electromagnetic adsorption unit 11 includes an adsorption unit 111 and a current-carrying unit 112 having a columnar shape, and a lead wire 113 is wound around the outer circumference of the current-carrying unit 112.
  • the adsorption portion 111 and the energization portion 112 are made of a mild steel material. After a voltage is applied to the wire 113 by an external power source (not shown), the wire 113 wound around the current-carrying portion 112 generates a magnetic field to magnetize the adsorption portion 111 and the current-carrying portion 112 of the electromagnetic adsorption unit 11, that is, the electromagnetic adsorption unit 11 at this time.
  • the adsorption portion 111 and the current-carrying portion 112 have magnetic properties, and since the occlusion pattern 101 of the shielding plate 10 is made of a raw magnet material, the adsorption portion 111 located above the occlusion pattern 101 can attract the occlusion pattern 101, thereby making electromagnetic The adsorption unit 11 adsorbs the shutter 10 .
  • the magnetic field of the wire 113 disappears, and the adsorption portion 111 and the energizing portion 112 of the electromagnetic adsorption unit 11 simultaneously demagnetize, thereby losing the adsorption capacity of the shielding plate 10.
  • the shielding plate 10 is in its own gravity. It is separated from the electromagnetic adsorption unit 11 by action.
  • the ultraviolet light source 2 includes an ultraviolet lamp tube 21 and a lamp cover 22, and the lamp cover 22 is used for reflecting the ultraviolet light irradiated to the surface of the ultraviolet lamp tube 21, so that the ultraviolet light can also be irradiated toward the shielding plate 10, thereby improving the utilization rate of the ultraviolet light. .
  • the sealant hardening machine is further provided with a guide rail 20, and one end of the energizing portion 112 of the electromagnetic adsorption unit 11 of the shielding device 1 is engaged in the guide rail 20, and the electromagnetic adsorption unit 11 is slidable along the guide rail 20 And moving the adsorption portion 111 of the electromagnetic adsorption unit 11 into the range of the occlusion pattern 101 according to the occlusion pattern 101 of the shielding plate 10, preventing the adsorption portion 111 from blocking the light transmission region 103 of the shielding plate 10, affecting the ultraviolet light pair frame.
  • the irradiation of the glue increases the efficiency of use of ultraviolet light.
  • the shielding device 1 In the process of hardening the sealant, the shielding device 1 is disposed between the ultraviolet light source 2 and the liquid crystal panel, and the electromagnetic force generated by the electromagnetic adsorption unit 11 adsorbs the shielding plate 10, and the ultraviolet light emitted by the ultraviolet light source 2 is partially transmitted.
  • the light-transmitting area 103 of the shielding plate 10 is irradiated on the sealant of the liquid crystal panel, and the blocking pattern 101 of the shielding plate 10 blocks the ultraviolet light, so that the ultraviolet light is not transmitted to the display area of the liquid crystal panel, thereby avoiding the glue in the frame.
  • the liquid crystal layer In the hardening process, the liquid crystal layer is irradiated with ultraviolet light in advance, and the monomer is disorderly polymerized in advance, and the problem of pre-orientation is lost.
  • the shielding plate 10 is electromagnetically adsorbed by the electromagnetic adsorption unit 11, the flatness and cleanliness of the surface of the shielding plate 10 are required to be low, thereby reducing the manufacturing cost and maintenance cost of the framed ultraviolet curing machine. At the same time, the adsorption of the shielding plate 10 can be made more secure.
  • the invention further provides a sealant hardening method.
  • FIG. 4 is a schematic flow chart of a first embodiment of a sealant hardening method according to the present invention.
  • the method for hardening the sealant provided in this embodiment adopts the above-mentioned sealant hardening machine, and the method for hardening the sealant comprises:
  • Step S10 applying a voltage to the electromagnetic adsorption unit, so that the electromagnetic adsorption unit adsorbs the shielding plate;
  • the shielding plate is adsorbed by the electromagnetic adsorption unit.
  • the electromagnetic adsorption unit can be magnetic.
  • the electromagnetic adsorption unit can adsorb the shielding pattern of the shielding plate, thereby adsorbing the shielding plate.
  • step S20 the ultraviolet light source is turned on, and the ultraviolet light is irradiated onto the sealant through the shielding plate to harden the sealant.
  • the ultraviolet light source After the electromagnetic adsorption unit adsorbs the shielding plate, the ultraviolet light source is turned on, so that the ultraviolet light emitted by the ultraviolet light source is partially irradiated on the frame glue of the liquid crystal panel through the transparent region of the shielding plate to harden the frame glue.
  • the shielding pattern of the shielding plate blocks the ultraviolet light, so that the ultraviolet light is not transmitted to the display area of the liquid crystal panel.
  • the electromagnetic shielding unit electromagnetically adsorbs the shielding plate, the flatness and the cleanliness of the surface of the shielding plate are required to be low, thereby reducing the manufacturing cost and the maintenance cost of the frame glue ultraviolet curing machine; It can make the adsorption of the shielding plate more secure.
  • FIG. 5 is a schematic flow chart of adsorbing a shielding baffle in a frame hardening method according to the present invention.
  • step S10 includes:
  • Step S11 applying a voltage to a wire wound around the energizing portion of the electromagnetic adsorption unit to make the adsorption portion of the electromagnetic adsorption unit magnetic;
  • step S12 the occlusion pattern of the shielding plate is adsorbed by the adsorption portion of the electromagnetic adsorption unit, so that the shielding plate is adsorbed on the electromagnetic adsorption unit.
  • the electromagnetic adsorption unit includes an adsorption portion, an energization portion, and a wire wound around the energization portion.
  • an external power source (not shown) applies a voltage to the wire
  • a wire wound around the conducting portion generates a magnetic field to magnetize the adsorption portion and the energizing portion of the electromagnetic adsorption unit, that is, the adsorption portion of the electromagnetic adsorption unit has magnetic properties. Since the shielding pattern of the shielding plate is made of the original magnet material, the adsorption portion located above the shielding pattern can attract the shielding pattern, so that the electromagnetic adsorption unit adsorbs the shielding plate.
  • the electromagnetic adsorption unit is arranged to include an adsorption portion and an energization portion, and the wire is wound on the energization portion. After the wire is energized, the electromagnetic adsorption unit is magnetized to adsorb the shielding pattern of the shielding plate, thereby further ensuring the adsorption of the shielding plate. More secure.
  • FIG. 6 is a schematic flow chart of a second embodiment of a sealant hardening method according to the present invention.
  • the method further includes:
  • step S30 after the power is cut off, the electromagnetic adsorption unit is demagnetized, and the shielding plate is separated from the electromagnetic adsorption unit by gravity.
  • the magnetic field of the wire disappears, and the adsorption portion and the energizing portion of the electromagnetic adsorption unit simultaneously demagnetize, thereby losing the adsorption capacity to the shielding plate.
  • the electromagnetic adsorption unit releases the adsorption to the shielding plate, and the shielding plate is separated from the electromagnetic adsorption unit by its own gravity.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Liquid Crystal (AREA)
  • Sealing Material Composition (AREA)

Abstract

一种遮挡装置（1）、包括该遮挡装置（1）的框胶硬化机以及框胶硬化方法，该遮挡装置（1）包括遮挡板（10）和电磁吸附单元（11），该遮挡板（10）包括遮挡图形（101）及透光区（103）；电磁吸附单元（11）用于吸附遮挡板（10）。通过电磁吸附单元（11）对遮挡板（10）进行电磁吸附，使得该吸附对遮挡板（10）的表面的平坦度和清洁度要求较低，从而降低了框胶紫外硬化机的制作成本和维护成本；同时，能够使对遮挡板（10）的吸附更为牢靠。

Description

遮挡装置、框胶硬化机及框胶硬化方法
技术领域
本发明涉及到液晶显示技术领域，特别涉及到一种遮挡装置、框胶硬化机及框胶硬化方法。
背景技术
液晶显示面板是由两片透明基板以及被封于基板之间的液晶所构成。在液晶显示面板的制程中，液晶是被填充及密封于透明基板之间，因而形成液晶盒(Liquid Crystal Cell)于两玻璃基板之间，液晶盒是被一框胶来密封于两玻璃基板之间。紫外光固化(curing)两玻璃基板之间的框胶，以形成液晶显示面板。
在一些特定的液晶显示器中，例如聚合物稳定垂直配向型(Polymer Stabilized Vertical Alignment, PSVA)液晶显示器中，两透明基板之间的液晶中掺有反应型单体(reactive monomer)，其混合于液晶分子，其中，每一透明基板的表面涂布有聚酰亚胺(polyimide，PI)，其作为配向基材。当施加电压并用紫外光照射于两透明基板时，反应型单体与液晶分子发生相分离(phase separation)现象，而在透明基板的配向基材上形成聚合物。由于聚合物跟液晶分子之间的相互作用，液晶分子会沿着聚合分子的方向来排列，因此，透明基板之间的液晶分子可具有预倾角(pre-tilt angle)。
由于PSVA型液晶显示器的液晶中所掺杂的反应型单体被紫外光照射后会发生反应，因此，当固化PSVA型液晶显示面板的框胶时，需通过一遮挡装置来掩蔽液晶显示面板中的液晶区域。
遮挡装置一般是在素玻璃上溅镀上一层金属，并在金属上蚀刻出需要的图形，然后通过石英棒对遮挡装置进行真空吸附，遮挡装置处于紫外线灯管和液晶面板之间，遮挡装置遮挡部分紫外光，使位于液晶面板显示区的液晶层不会受到紫外光的照射，并且紫外光可透过遮挡装置照射到框胶上使框胶固化。但是由于遮挡装置是在玻璃形成遮挡图形，石英棒是由石英组成，两者都是坚硬的固体，在通过真空将其两者吸附在一起的时候，就要求遮挡装置表面和石英棒表面非常的平整，且需达到较高的洁净度，并且要求石英棒的加工非常的精密，致使其价格非常高昂，而且这种坚硬固体之间用真空来联系紧贴的方式，比较不牢靠。
发明内容
本发明的主要目的为提供一种遮挡装置、框胶硬化机及框胶硬化方法，旨在使遮挡装置的吸附更为牢靠，并且降低框胶硬化机的制作成本和维护成本。
本发明提供一种遮挡装置该遮挡装置包括遮挡板和电磁吸附单元，该遮挡板包括遮挡图形及透光区；所述电磁吸附单元用于吸附所述遮挡板。
优选地，所述遮挡图形的大小和形状与液晶面板的显示区的大小和形状相同。
优选地，所述电磁吸附单元包括用于吸附所述遮挡板的吸附部、与所述吸附部连接的通电部以及缠绕在通电部上的导线。
优选地，对所述导线施加电压后，所述导线使所述电磁吸附单元的吸附部上磁，吸附部与所述遮挡板的遮挡图形相互吸引；断电后，所述电磁吸附单元的吸附部消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
优选地，所述电磁吸附单元的吸附部为采用软钢材料制成。
优选地，所述遮挡板的遮挡图形为原磁体材料制成。
本发明还提供一种框胶硬化机，包括多个紫外光源，还包括遮挡装置，所述遮挡装置包括遮挡板和电磁吸附单元，该遮挡板包括遮挡图形及透光区；所述电磁吸附单元用于吸附所述遮挡板。
优选地，所述电磁吸附单元包括用于吸附所述遮挡板的吸附部、与所述吸附部连接的通电部以及缠绕在通电部上的导线。
优选地，对所述导线施加电压后，所述导线使所述电磁吸附单元的吸附部上磁，吸附部与所述遮挡板的遮挡图形相互吸引；断电后，所述电磁吸附单元的吸附部消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
优选地，所述电磁吸附单元的吸附部为采用软钢材料制成。
优选地，所述遮挡板的遮挡图形为原磁体材料制成。
优选地，所述遮挡图形的大小和形状与液晶面板的显示区的大小和形状相同。
优选地，所述框胶硬化机还包括导轨，所述电磁吸附单元的通电部的一端卡合在所述导轨中，所述电磁吸附单元可沿该导轨滑动。
本发明进一步提供一种框胶硬化方法，包括：
对电磁吸附单元施加电压，使电磁吸附单元吸附遮挡板；
开启紫外光源，紫外光透过遮挡板照射到框胶上，对框胶进行硬化。
优选地，所述对电磁吸附单元施加电压，使电磁吸附单元吸附遮挡板包括：
对缠绕在所述电磁吸附单元的通电部上的导线施加电压，使所述电磁吸附单元的吸附部上磁；
通过所述电磁吸附单元的吸附部吸附所述遮挡板的遮挡图形，使所述遮挡板吸附在所述电磁吸附单元上。
优选地，在所述开启紫外光源，紫外光透过遮挡板照射到框胶上，对框胶进行硬化之后，还包括：
断电后，所述电磁吸附单元消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
本发明通过电磁吸附单元对遮挡板进行电磁吸附，因此对遮挡板的表面的平坦度和清洁度要求较低，从而降低了框胶硬化机的制作成本和维护成本；同时，能够使对遮挡板的吸附更为牢靠。
附图说明
图1为本发明遮挡装置较佳实施例的结构示意图；
图2为本发明遮挡装置的电磁吸附单元的结构示意图；
图3为本发明框胶硬化机较佳实施例的结构示意图；
图4为本发明框胶硬化方法第一实施例的流程示意图；
图5为本发明框胶硬化方法中吸附遮挡板的流程示意图；
图6为本发明框胶硬化方法第二实施例的流程示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
参照图1至图3，图1为本发明遮挡装置较佳实施例的结构示意图；图2为本发明遮挡装置的电磁吸附单元的结构示意图；图3为本发明框胶硬化机较佳实施例的结构示意图。
本实施例所提供的框胶硬化机，包括遮挡装置1和用于提供紫外光的多个紫外光源2。
遮挡装置1用于在通过紫外光对液晶面板的框胶进行硬化的制程中遮挡部分紫外光，使紫外光只对液晶面板的框胶进行照射，而液晶面板的显示区不受紫外光照射。
该遮挡装置1包括遮挡板10和电磁吸附单元11。该遮挡板10包括基板102及形成在基板102上的遮挡图形101，基板102未形成遮挡图形101的区域形成透光区103，遮挡图形101为含铁、钴或镍等金属的原磁体材料制成，也可以由含铁、钴或镍等金属的合金材料制成。该遮挡图形101的大小和形状与液晶面板的显示区的大小和形状相同。
电磁吸附单元11用于吸附遮挡板10。电磁吸附单元11包括吸附部111及通电部112，所述通电部112呈柱状，在通电部112的外周缠绕有导线113。所述吸附部111及通电部112采用软钢材料制成。外部电源（图未示）对该导线113施加电压后，缠绕在通电部112上的导线113产生磁场使电磁吸附单元11的吸附部111及通电部112上磁，即此时该电磁吸附单元11的吸附部111及通电部112具有磁性，而由于遮挡板10的遮挡图形101为原磁体材料制成，因此，位于遮挡图形101上方的吸附部111便可与遮挡图形101相互吸引，从而使电磁吸附单元11将遮挡板10吸附。当停止对导线113施加电压后，导线113产生磁场消失，电磁吸附单元11的吸附部111及通电部112同时消磁，从而失去对遮挡板10的吸附能力，此时，遮挡板10在自身的重力作用下与电磁吸附单元11分离。
紫外光源2包括紫外灯管21及灯罩22，灯罩22用于反射紫外灯管21照射到其表面的紫外光，使这部分紫外光也可以向遮挡板10方向照射，从而提高紫外光的利用率。
在上述实施例中，所述框胶硬化机还设置有导轨20，遮挡装置1的电磁吸附单元11的通电部112的一端卡合在该导轨20中，电磁吸附单元11可沿该导轨20滑动，并根据遮挡板10的遮挡图形101的不同，将电磁吸附单元11的吸附部111移动至遮挡图形101的范围内，避免吸附部111阻挡遮挡板10的透光区103，影响紫外光对框胶的照射，并且提高了紫外光的使用效率。
在对框胶进行硬化的制程中，遮挡装置1设置在紫外光源2和液晶面板之间，通过电磁吸附单元11所产生的电磁力吸附遮挡板10，紫外光源2发出的紫外光，部分透过遮挡板10的透光区103照射在液晶面板的框胶上，而遮挡板10的遮挡图形101则遮挡紫外光，使紫外光不会透射到液晶面板的显示区上，从而避免了在框胶硬化制程中，液晶层提前受到紫外光照射，而产生单体提前无序聚合，失去预取向功能的问题。
本发明实施例，由于通过电磁吸附单元11对遮挡板10进行电磁吸附，因此对遮挡板10的表面的平坦度和清洁度要求较低，从而降低了框胶紫外硬化机的制作成本和维护成本；同时，能够使对遮挡板10的吸附更为牢靠。
本发明进一步提供一种框胶硬化方法。
参照图4，图4为本发明框胶硬化方法第一实施例的流程示意图。
本实施例所提供的框胶硬化方法，采用上述的框胶硬化机，该框胶硬化方法包括：
步骤S10，对电磁吸附单元施加电压，使电磁吸附单元吸附遮挡板；
本实施例中，通过电磁吸附单元吸附遮挡板。当对对电磁吸附单元施加电压时，电磁吸附单元便可具有磁性，此时，电磁吸附单元可以吸附遮挡板的遮挡图形，从而将遮挡板进行吸附。
步骤S20，开启紫外光源，紫外光透过遮挡板照射到框胶上，对框胶进行硬化。
当电磁吸附单元吸附遮挡板后，开启紫外光源，使该紫外光源发出的紫外光，部分透过遮挡板的透光区照射在液晶面板的框胶上，对框胶进行硬化。而遮挡板的遮挡图形则遮挡紫外光，使紫外光不会透射到液晶面板的显示区上。
本发明实施例，由于通过电磁吸附单元对遮挡板进行电磁吸附，因此对遮挡板的表面的平坦度和清洁度要求较低，从而降低了框胶紫外硬化机的制作成本和维护成本；同时，能够使对遮挡板的吸附更为牢靠。
参照图5，图5为本发明框胶硬化方法中吸附遮挡板的流程示意图。
在上述实施例中，步骤S10包括：
步骤S11，对缠绕在电磁吸附单元的通电部上的导线施加电压，使电磁吸附单元的吸附部上磁；
步骤S12，通过电磁吸附单元的吸附部吸附遮挡板的遮挡图形，使遮挡板吸附在电磁吸附单元上。
本实施例中，电磁吸附单元包括吸附部、通电部和缠绕在通电部的导线。外部电源（图未示）对该导线施加电压后，缠绕在通电部上的导线产生磁场使电磁吸附单元的吸附部及通电部上磁，即此时该电磁吸附单元的吸附部具有磁性，而由于遮挡板的遮挡图形为原磁体材料制成，因此，位于遮挡图形上方的吸附部便可与遮挡图形相互吸引，从而使电磁吸附单元将遮挡板吸附。
将电磁吸附单元设置为包括吸附部和通电部，并在通电部上缠绕导线，在导线通电后，电磁吸附单元上磁，吸附遮挡板的遮挡图形，从而进一步保证了能够使得对遮挡板的吸附更为牢靠。
参照图6，图6为本发明框胶硬化方法第二实施例的流程示意图。
基于上述实施例，在执行步骤S20之后，该方法还包括：
步骤S30，断电后，电磁吸附单元消磁，遮挡板在重力作用下与电磁吸附单元分离。
框胶硬化制程完成后，当停止对导线施加电压后，导线产生磁场消失，电磁吸附单元的吸附部和通电部同时消磁，从而失去对遮挡板的吸附能力。此时，电磁吸附单元放开对遮挡板的吸附，而遮挡板则在自身的重力作用下与电磁吸附单元分离。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围。

Claims (16)

  1. 一种遮挡装置，其特征在于，该遮挡装置包括遮挡板和电磁吸附单元，该遮挡板包括遮挡图形及透光区；所述电磁吸附单元用于吸附所述遮挡板。
  2. 根据权利要求1所述的遮挡装置，其特征在于，所述遮挡图形的大小和形状与液晶面板的显示区的大小和形状相同。
  3. 根据权利要求1所述的遮挡装置，其特征在于，所述电磁吸附单元包括用于吸附所述遮挡板的吸附部、与所述吸附部连接的通电部以及缠绕在通电部上的导线。
  4. 根据权利要求3所述的遮挡装置，其特征在于，对所述导线施加电压后，所述导线使所述电磁吸附单元的吸附部上磁，吸附部与所述遮挡板的遮挡图形相互吸引；断电后，所述电磁吸附单元的吸附部消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
  5. 根据权利要求4所述的遮挡装置，其特征在于，所述电磁吸附单元的吸附部为采用软钢材料制成。
  6. 根据权利要求1所述的遮挡装置，其特征在于，所述遮挡板的遮挡图形为原磁体材料制成。
  7. 一种框胶硬化机，包括多个紫外光源，其特征在于，还包括遮挡装置，所述遮挡装置包括遮挡板和电磁吸附单元，该遮挡板包括遮挡图形及透光区；所述电磁吸附单元用于吸附所述遮挡板。
  8. 根据权利要求7所述的框胶硬化机，其特征在于，所述电磁吸附单元包括用于吸附所述遮挡板的吸附部、与所述吸附部连接的通电部以及缠绕在通电部上的导线。
  9. 根据权利要求8所述的框胶硬化机，其特征在于，对所述导线施加电压后，所述导线使所述电磁吸附单元的吸附部上磁，吸附部与所述遮挡板的遮挡图形相互吸引；断电后，所述电磁吸附单元的吸附部消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
  10. 根据权利要求9所述的框胶硬化机，其特征在于，所述电磁吸附单元的吸附部为采用软钢材料制成。
  11. 根据权利要求7所述的框胶硬化机，其特征在于，所述遮挡板的遮挡图形为原磁体材料制成。
  12. 根据权利要求11所述的框胶硬化机，其特征在于，所述遮挡图形的大小和形状与液晶面板的显示区的大小和形状相同。
  13. 根据权利要求7所述的框胶硬化机，其特征在于，所述框胶硬化机还包括导轨，所述电磁吸附单元的通电部的一端卡合在所述导轨中，所述电磁吸附单元可沿该导轨滑动。
  14. 一种框胶硬化方法，其特征在于，包括：
    对电磁吸附单元施加电压，使电磁吸附单元吸附遮挡板；
    开启紫外光源，紫外光透过遮挡板照射到框胶上，对框胶进行硬化。
  15. 根据权利要求14所述的框胶硬化方法，其特征在于，所述对电磁吸附单元施加电压，使电磁吸附单元吸附遮挡板包括：
    对缠绕在所述电磁吸附单元的通电部上的导线施加电压，使所述电磁吸附单元的吸附部上磁；
    通过所述电磁吸附单元的吸附部吸附所述遮挡板的遮挡图形，使所述遮挡板吸附在所述电磁吸附单元上。
  16. 根据权利要求15所述的框胶硬化方法，其特征在于，在所述开启紫外光源，紫外光透过遮挡板照射到框胶上，对框胶进行硬化之后，还包括：
    断电后，所述电磁吸附单元消磁，遮挡板在重力作用下与所述电磁吸附单元分离。
PCT/CN2012/087178 2012-12-14 2012-12-21 遮挡装置、框胶硬化机及框胶硬化方法 WO2014089876A1 (zh)

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