WO2016074296A1 - 一种涂布方法及涂布装置 - Google Patents

一种涂布方法及涂布装置 Download PDF

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WO2016074296A1
WO2016074296A1 PCT/CN2014/092958 CN2014092958W WO2016074296A1 WO 2016074296 A1 WO2016074296 A1 WO 2016074296A1 CN 2014092958 W CN2014092958 W CN 2014092958W WO 2016074296 A1 WO2016074296 A1 WO 2016074296A1
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coated
coating
magnetic field
particles
carrier
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French (fr)
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宋江江
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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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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials

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  • the invention belongs to the field of coating technology, and in particular relates to a coating method and a coating device.
  • the coating method is generally classified into a roll coating method and a spray coating method, which are capable of applying a glue or paint waiting coating to a carrier such as a glass substrate, paper, cloth, resin, or mechanical parts.
  • the coating method is widely used, for example, painting of mechanical parts, manufacture of a film, and manufacture of TFT glass and color filter of a liquid crystal panel.
  • the object to be coated in the nozzle is usually sprayed on the carrier by means of air pressure, and the nozzle is sprayed at a uniform speed above the carrier to obtain a relatively uniform layer to be coated.
  • the layer to be coated sprayed on the carrier may be uneven.
  • an object of the present invention is to provide a coating method and a coating apparatus capable of uniformly coating an object to be coated on a surface to be coated of a carrier.
  • a coating method comprising the steps of: coating a material to be coated mixed with magnetic particles on a surface to be coated; applying an alternating magnetic field on a surface to be coated to promote magnetic properties
  • the particles vibrate in the object to be coated, so that the object to be coated is uniformly distributed on the surface to be coated.
  • the magnetic particles vibrating in the object to be coated will act to cause a small range of flow of the object to be coated, so that it is evenly distributed on the surface to be coated of the carrier.
  • the alternating magnetic field is formed by a group of electromagnets that input alternating current. Since the alternating magnetic field formed by the electromagnet group has strong flexibility, the magnetic field strength and the alternating frequency can be changed by the input alternating current, so that the coating method is suitable for coating to be coated with different thicknesses. Coating layer.
  • the electromagnet group is composed of electromagnets distributed in an array, the array consisting of a plurality of rows and a plurality of columns, and the spacing of any adjacent electromagnets in each row is equal to any adjacent electromagnetic in each column. The spacing of the iron.
  • Such an array of electromagnets can produce a substantially uniform electromagnetic field, causing the movement of most of the magnetic particles in the magnetic field to be substantially the same, further promoting uniform distribution of the object to be coated on the surface to be coated.
  • the alternating current is an alternating current of a constant frequency.
  • the electromagnet group can generate a uniformly and orderly varying magnetic field such that the magnetic force and time of each magnetic particle are equal, so that the reciprocating motion of each magnetic particle is substantially the same, further The distribution of the object to be coated is uniform on the surface to be coated of the carrier.
  • the object to be coated is a photoresist
  • the carrier is a glass substrate for manufacturing a liquid crystal panel TFT glass or a color filter.
  • the photoresist coated on the glass substrate by the coating method of the present invention can promote the uniform distribution of the photoresist and avoid macroscopic color unevenness on the display screen.
  • the frequency of the alternating current is greater than 3000 Hz
  • the magnetic particles are selected to be particles capable of losing magnetic properties at a temperature of from 150 ° C to 300 ° C and having a particle size of from 10 to 99 nm, and containing from 100 to 200 particles of magnetic particles per ml of the mixture.
  • a constant magnetic field is applied at the edge of the surface to be coated to cause the magnetic particles to accumulate at the edges of the surface to be coated to prevent outflow of the object to be coated.
  • a coating apparatus comprising: a bearing surface for placing a carrier; a coating mechanism capable of coating a material to be coated mixed with the magnetic particles on a surface to be coated of the carrier; An alternating magnetic field source located below the load bearing surface.
  • the alternating magnetic field source is configured to generate an alternating magnetic field on the surface to be coated, and to cause the magnetic particles to vibrate in the object to be coated, thereby uniformly distributing the object to be coated on the surface to be coated.
  • the alternating magnetic field source is a first electromagnet group that inputs an alternating current.
  • the alternating magnet field formed by the first electromagnet group has strong flexibility, and the magnetic field strength and the alternating frequency can be changed by changing the input alternating current, so that the coating device is suitable for coating to be coated with different thicknesses.
  • the layer to be coated is a first electromagnet group that inputs an alternating current.
  • the first electromagnet group is composed of a first electromagnet distributed in an array, the array consisting of a plurality of rows and a plurality of columns, and the spacing of any adjacent first electromagnets in the row is equal to any phase in the column The spacing of the adjacent first electromagnets.
  • the array of first electromagnets distributed in the array enables them to generate a substantially uniform electromagnetic field, which promotes the movement of the respective magnetic particles to be substantially the same, further promoting the distribution of the object to be coated on the surface to be coated of the carrier. uniform.
  • the alternating current is an alternating current of a constant frequency.
  • the electromagnet group can generate a uniformly and orderly varying magnetic field such that the magnetic force and time of each magnetic particle are equal, so that the reciprocating motion of each magnetic particle is substantially the same, further The distribution of the object to be coated is uniform on the surface to be coated of the carrier.
  • the object to be coated is a photoresist
  • the carrier is a glass substrate for manufacturing a liquid crystal panel TFT glass or a color filter.
  • the photoresist coated on the glass substrate by using the coating device of the present invention can promote uniform distribution of the photoresist and avoid abnormality of the display screen.
  • the frequency of the alternating current is greater than 3000 Hz
  • the magnetic particles are selected to be particles capable of losing magnetic properties at a temperature of from 150 ° C to 300 ° C and having a particle size of from 10 to 99 nm, and containing from 100 to 200 particles of magnetic particles per ml of the mixture.
  • the photoresist coated on the glass substrate by using the coating device of the present invention can promote uniform distribution of the photoresist and avoid abnormality of the display screen.
  • the coating apparatus further includes a constant magnetic field source disposed below the edge of the load bearing surface, the constant magnetic field source configured to cause the magnetic particles to accumulate at the edges of the surface to be coated, thereby preventing the object to be coated outflow.
  • a constant magnetic field source disposed below the edge of the load bearing surface, the constant magnetic field source configured to cause the magnetic particles to accumulate at the edges of the surface to be coated, thereby preventing the object to be coated outflow.
  • the constant magnetic field is a second electromagnet group that inputs a direct current current
  • the second electromagnet group is composed of a plurality of second electromagnets that surround the alternating magnetic field source, and the spacing of any adjacent second electromagnets The distance is fixed.
  • Such a second electromagnet spaced apart from each other is capable of generating a uniform electric field to make the distribution of magnetic particles at the edges of the surface to be coated relatively uniform.
  • the object to be coated can be uniformly coated on the surface to be coated of the carrier to avoid adverse effects due to uneven distribution of the object to be coated, such as uneven paint layer.
  • the display is abnormal due to poor aesthetics, poor performance due to uneven film thickness, and unevenness of the photoresist layer on the glass substrate of the TFT glass and the color filter.
  • the coating method and the spraying device according to the present invention can also avoid waste of resources and enlarge the available area of the carrier after coating, so that the subsequent trimming step can be omitted and the production efficiency can be improved.
  • the spraying device according to the present invention is simple and compact in structure, convenient in processing, simple in assembly, safe and efficient in use, and convenient for implementation and popularization.
  • Figure 1 is a schematic view showing the structure of a coating apparatus according to the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • the coating device 10 includes a base 2 and a bearing surface 2a formed at a top end of the base 2.
  • the bearing surface 2a is used to place the carrier 3, which is in complete conformity with the contact surface of the carrier 3.
  • the bearing surface 2a is planar for placement of a glass substrate (i.e., carrier 3).
  • the coating device 10 further comprises a coating mechanism 4 capable of coating the object 7 to be coated with the magnetic particles on the surface 3a to be coated 3a, and an alternating magnetic field source provided below the bearing surface 2a.
  • the coating mechanism 4 may be selected as a nozzle capable of spraying magnetic particles, or a roller capable of coating the object to be coated 7 on the surface to be coated 3a in a rolling manner.
  • the nozzle and the roller are well known to those skilled in the art and will not be described in detail herein.
  • the alternating magnetic field source 5 may be disposed below the inside or the bottom of the susceptor 2 for generating an alternating magnetic field on the surface to be coated 3a and causing the magnetic particles to vibrate within the object to be coated 7, thereby
  • the object to be coated 7 is evenly distributed on the surface to be coated 3a.
  • the magnetic particles vibrating in the object to be coated 7 will actuate a small range of flow of the object to be coated 7, thereby uniformly distributing it on the carrier. 3 on the surface to be coated 3a.
  • the object to be coated 7 may be a glue or paint
  • the carrier 3 may be a glass substrate, paper, cloth, resin or mechanical parts or the like.
  • the alternating magnetic field source 5 can be a first electromagnet group that inputs an alternating current, and of course can be a device capable of switching the magnetic poles of the permanent magnet.
  • the flexibility of the alternating magnetic field formed by the first electromagnet group is strong, the magnetic field strength and the alternating frequency can be changed while changing the input alternating current, so that the coating device 10 is suitable for coating of different thicknesses.
  • the layer to be coated which is applied to the surface 3a to be coated.
  • the first electromagnet group is composed of a first electromagnet 501 distributed in an array, the array consisting of a plurality of rows and a plurality of columns, and the spacing L1 of any adjacent first electromagnets 501 in each row is It is equal to the pitch L2 of any adjacent first electromagnets 501 in each column.
  • the array of first electromagnets 501 distributed in such an array is capable of generating a substantially uniform electromagnetic field, causing the movement of most or all of the magnetic particles in the magnetic field to be substantially the same, further causing the object to be coated 7 to be distributed on the surface to be coated 3a of the carrier 3. Evenly.
  • the alternating current is an alternating current of a constant frequency.
  • the first electromagnet group inputs an alternating current of a constant frequency, the first electromagnet group is capable of generating a uniformly and orderly varying magnetic field such that the magnetic force and time of each magnetic particle are equal, thereby causing reciprocation of each magnetic particle.
  • the strokes are substantially the same, which further promotes the uniform distribution of the object to be coated 7 on the surface 3a to be coated 3 of the carrier 3.
  • each of the first electromagnets 501 is a U-shaped electromagnet, and each of the U-shaped electromagnets has the same winding mode and current direction, and the open ends thereof are all in the same plane and parallel to the bearing surface 2a.
  • the opening distance of the U-shaped electromagnet 501 is equal to the distance between the U-shaped electromagnet 501 and the adjacent U-shaped electromagnet 501. In this way, the distribution of the magnetic field lines of the alternating magnetic field can be made to be uniform.
  • each of the first electromagnets 501 is a strip-shaped electromagnet, and each of the strip-shaped electromagnets has the same winding mode and current direction, and one end thereof is in the same plane and parallel to the bearing surface 2a. In this way, the distribution of the magnetic field lines of the alternating magnetic field can be made to be uniform.
  • the object to be coated 7 is a photoresist
  • the carrier 3 is a glass substrate for manufacturing a liquid crystal panel TFT glass or a color filter.
  • the frequency of the alternating current is preferably greater than 3000 Hz
  • the magnetic particles are selected to be particles capable of losing magnetic properties at a temperature of from 150 ° C to 300 ° C and having a particle diameter of from 10 to 99 nm, and containing from 100 to 200 particles of magnetic particles per ml of the mixture.
  • the magnetic particles may preferably be ferrite particles or NdFeB particles.
  • the coating device 10 further comprises a constant magnetic field source 6 disposed below the edge of the bearing surface 2a.
  • the constant magnetic field source 6 is outside the dashed box B and distributed around the dashed box B, while the alternating magnetic field source 5 is in the dashed box B.
  • the constant magnetic field source 6 is configured to urge the magnetic particles to accumulate at the edges of the surface to be coated 3a, thereby preventing the outflow of the object to be coated 7. Thereby, waste of resources can be avoided, and the available area of the carrier after coating can be enlarged, thereby omitting the subsequent trimming step, High production efficiency.
  • the constant magnetic field source 6 can be a second electromagnet group that inputs a direct current.
  • the second electromagnet group is composed of a plurality of second electromagnets 601 surrounding the alternating magnetic field source, and the interval distance L3 of any adjacent second electromagnets 601 is a constant value.
  • the second electromagnet 601 may be a U-shaped electromagnet or a strip-shaped electromagnet. This second electromagnet 601 having the same distance can generate a uniform electric field to make the distribution of the magnetic particles at the edge of the surface to be coated 3a relatively uniform.
  • the present invention also provides a coating method, the method comprising: coating the mixed magnetic particles and the object to be coated on the carrier; applying an alternating magnetic field on the surface to be coated to urge the magnetic particles to be treated Vibration is generated in the coating to uniformly distribute the object to be coated on the surface to be coated.
  • the coating to be coated on the surface to be coated of the carrier is unevenly distributed, the magnetic particles vibrating in the object to be coated will act to cause a small range of flow of the object to be coated, so that it is evenly distributed on the surface to be coated of the carrier.
  • the object to be coated may be a glue or paint
  • the carrier may be a glass substrate, paper, cloth, resin or mechanical parts or the like.
  • the alternating magnetic field according to the present invention is formed by an electromagnet group that inputs an alternating current, and of course can also be formed by a device capable of switching the magnetic poles of the permanent magnet.
  • the alternating magnetic field formed by the electromagnet group has strong flexibility, the magnetic field strength and the alternating frequency can be changed while changing the input alternating current, so that the coating method is suitable for coating of different thicknesses.
  • the coated layer to be coated since the alternating magnetic field formed by the electromagnet group has strong flexibility, the magnetic field strength and the alternating frequency can be changed while changing the input alternating current, so that the coating method is suitable for coating of different thicknesses.
  • the electromagnet set is comprised of electromagnets distributed in an array. 2
  • the array consists of a plurality of rows and a plurality of columns, and the spacing L1 of any adjacent electromagnets in each row is equal to the spacing L2 of any adjacent electromagnets in each column.
  • Such an array of electromagnets can generate a substantially uniform electromagnetic field, causing the movement of most of the magnetic particles in the magnetic field to be substantially the same, further promoting uniform distribution of the object to be coated on the surface to be coated.
  • the alternating current is an alternating current of a constant frequency.
  • the electromagnet group inputs an alternating current of a constant frequency, the electromagnet group can generate a uniformly and orderly varying magnetic field, so that the magnetic force and time of the magnetic particles acting on each magnetic particle are equal, so that the reciprocating motion of each magnetic particle is substantially the same.
  • the coating to be coated is uniformly distributed on the surface to be coated of the carrier.
  • the object to be coated is a photoresist
  • the carrier is a glass substrate for manufacturing a liquid crystal panel TFT glass or a color filter.
  • a photoresist coated on a glass substrate using the coating method according to the present invention It is sufficient to ensure that the distribution of the photoresist layer applied to the glass substrate is uniform, thereby avoiding macroscopic color unevenness on the display screen.
  • the frequency of the alternating current of the current frequency is selected to be greater than 3000 Hz
  • the magnetic particles are selected to be particles which are capable of losing magnetic properties at a temperature of from 150 ° C to 300 ° C and having a particle diameter of from 10 to 99 nm, and containing from 100 to 200 particles of magnetic particles per ml of the mixture.
  • the magnetic particles may preferably be ferrite particles or NdFeB particles.
  • a constant magnetic field may be applied at the edge of the surface to be coated to cause the magnetic particles to accumulate at the edges of the surface to be coated, thereby preventing the outflow of the object to be coated.
  • the coating method and the coating device 10 according to the present invention can uniformly coat the object to be coated on the surface to be coated of the carrier to avoid adverse effects on the carrier due to uneven distribution of the object to be coated, for example, photolithography.
  • the uneven distribution of the glue causes the macroscopic color unevenness of the liquid crystal panel.

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Abstract

一种涂布方法及涂布装置，其中涂布方法步骤包括：将混入磁性颗粒的待涂物涂布在载体的待涂面上；在待涂面上施加交变磁场以促使磁性颗粒在待涂物内产生振动，从而使得待涂物在待涂面上分布均匀。所述涂布方法和喷涂装置，能够把待涂物均匀涂布在载体的待涂面上，以避免因待涂物的分布不均而带来不利影响。

Description

一种涂布方法及涂布装置
相关申请的交叉引用
本申请要求享有于2014年11月14日提交的名称为“一种涂布方法及涂布装置”的中国专利申请201410648230.9的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明属于涂布技术领域，尤其涉及一种涂布方法及涂布装置。
背景技术
涂布方法通常分为辊压式涂布方法和喷涂式涂布方法，其能够把胶液或油漆等待涂物涂布在玻璃基板、纸、布、树脂或机械零部件等载体上。涂布方法的应用非常广泛，例如机械零部件的喷漆、薄膜的制造以及液晶面板的TFT玻璃和彩膜滤光片的制造等。
目前，通常使用气压方式把喷嘴内的待涂物喷涂在载体上，喷嘴在载体的上方匀速移动进行喷涂，以得到相对均匀的待涂物层。但是，当喷嘴内存在异物或喷嘴移动过程出现振动，喷涂在载体上的待涂物层就会出现不均。
发明内容
为了解决上述问题，本发明的目的是提供一种涂布方法和涂布装置，其能够把待涂物均匀涂布在载体的待涂面上。
根据本发明的第一方面，提供了一种涂布方法，其步骤包括：将混入磁性颗粒的待涂物涂布在载体的待涂面上；在待涂面上施加交变磁场以促使磁性颗粒在待涂物内产生振动，从而使得待涂物在待涂面上分布均匀。当涂布在载体的待涂面上的待涂物分布不均时，待涂物内振动的磁性颗粒将促动待涂物产生小范围流动，从而使其均匀分布在载体的待涂面上。
在一个实施例中，交变磁场由输入交变电流的电磁铁组形成。由于电磁铁组形成的交变磁场的灵活性较强，因此通过输入的交变电流可以改变磁场强度和交变频率，以使该涂布方法适用于不同厚度的涂布于待涂面的待涂物层。
在一个实施例中，电磁铁组由以阵列分布的电磁铁组成，阵列由多个排和多个列组成，各排内的任意相邻电磁铁的间距均等于各列内的任意相邻电磁铁的间距。这种阵列分布的电磁铁组能够使其产生大致均匀的电磁场，促使运动在磁场内大部分磁性颗粒运动大致相同，进一步促使待涂物在载体的待涂面上分布均匀。
在一个实施例中，交变电流为恒定频率的交变电流。当输入恒定频率的交变电流时，电磁铁组能够产生均匀有序的变化磁场，使得其作用于各磁性颗粒的磁力和时间相等，从而使得各磁性颗粒的往复运动的行程大致相同，更进一步地促使待涂物在载体的待涂面上分布均匀。
在一个实施例中，待涂物为光刻胶，而载体为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。使用本发明的涂布方法在玻璃基板上涂布的光刻胶，能够促使光刻胶的分布均匀，避免在显示屏上出现宏观色不均。
在一个实施例中，交流电流的频率大于3000Hz，磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，每毫升混合物内含有100-200粒磁性颗粒。通过这种方法，不仅可以确保光刻胶层的分布均匀，满足液晶面板TFT或彩膜滤光片的需求，而且还可以避免磁性颗粒干扰显示面板的正常显示。
在一个实施例中，在待涂面的边缘处施加恒定磁场，以促使磁性颗粒在待涂面的边缘处进行堆积，以阻止待涂物外流。由此可以避免资源浪费，扩大涂布后载体的可利用面积，从而可以省略后续的切边步骤，提高生产效率。
根据本发明第二方面，提供了一种涂布装置，其包括：用于放置载体的承载面；能够把混入磁性颗粒的待涂物涂布在载体的待涂面上的涂布机构；以及设在承载面下方的交变磁场源。其中，交变磁场源构造成能够在待涂面上产生交变磁场，并促使磁性颗粒在待涂物内产生振动，从而使待涂物在待涂面上均匀分布。
在一个实施例中，交变磁场源为输入交流电流的第一电磁铁组。第一电磁铁组形成的交变磁场的灵活性较强，通过改变输入的交变电流能够改变磁场强度和交变频率，以使该涂布装置适用于不同厚度的涂布于待涂面的待涂物层。
在一个实施例中，第一电磁铁组由以阵列分布的第一电磁铁组成，阵列由多个排和多个列组成，排内任意相邻的第一电磁铁的间距等于列内任意相邻的第一电磁铁的间距。这种阵列分布的第一电磁铁组能够使其产生大致均匀的电磁场，促使各磁性颗粒的运动大致相同，进一步促使待涂物在载体的待涂面上分布均 匀。
在一个实施例中，交流电流为恒定频率的交流电流。当输入恒定频率的交变电流时，电磁铁组能够产生均匀有序的变化磁场，使得其作用于各磁性颗粒的磁力和时间相等，从而使得各磁性颗粒的往复运动的行程大致相同，更进一步地促使待涂物在载体的待涂面上分布均匀。
在一个实施例中，待涂物为光刻胶，而载体为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。使用本发明的涂布装置在玻璃基板上涂布的光刻胶，能够促使光刻胶的分布均匀，避免显示屏出现异常。
在一个实施例中，交流电流的频率大于3000Hz，磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，每毫升混合物内含有100-200粒磁性颗粒。使用本发明的涂布装置在玻璃基板上涂布的光刻胶，能够促使光刻胶的分布均匀，避免显示屏出现异常。
在一个实施例中，所述涂布装置还包括设置在承载面的边缘处下方的恒定磁场源，恒定磁场源构造成能够促使磁性颗粒在待涂面的边缘处进行堆积，从而阻止待涂物外流。由此可以避免资源浪费，扩大涂布后载体的可利用面积，从而省略后续的切边步骤，提高生产效率。
在一个实施例中，恒定磁场为输入直流电流的第二电磁铁组，第二电磁铁组由多个环绕在交变磁场源外的第二电磁铁组成，任意相邻第二电磁铁的间隔距离为定值。这种间隔距离间隔的第二电磁铁能够产生均匀电场，以使待涂面的边缘处的磁性颗粒分布比较均匀。
根据本发明的涂布方法和喷涂装置，能够把待涂物均匀涂布在载体的待涂面上，以避免因待涂物的分布不均而带来不利影响，例如漆层不均造成的美观效果不佳、薄膜厚度不均造成的性能降低以及TFT玻璃和彩膜滤光片的玻璃基板上的光刻胶层不均造成的显示异常。
同时，根据本发明的涂布方法和喷涂装置还能够避免资源浪费，扩大涂布后载体的可利用面积，从而可以省略后续的切边步骤，提高生产效率。
另外，根据本发明的喷涂装置的结构简单紧凑，加工方便，装配简单，使用安全高效，从而便于实施推广应用。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1为根据本发明的涂布装置的结构示意图；以及
图2为沿图1中A-A线的剖视图。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图对本发明作进一步说明。
图1和2显示了根据本发明的涂布装置10，其主要用于向载体3上涂布待涂物7，并促使形成在载体3上的待涂物层分布均匀。该涂布装置10包括基座2和形成在基座2的顶端的承载面2a。承载面2a用于放置载体3，其与载体3的接触面能够完全吻合。在一个优选的实施例中，承载面2a为平面，以用于放置玻璃基板(即载体3)。
根据本发明，该涂布装置10还包括能够把混入磁性颗粒的待涂物7涂布在载体3的待涂面3a上的涂布机构4，以及设在承载面2a下方的交变磁场源5。涂布机构4可选择成能够喷涂磁性颗粒的喷嘴，或者能够以滚压方式把待涂物7涂布在待涂面3a上的辊轮。其中，喷嘴和辊轮均属于本领域技术人员熟知，在此不作详细描述
根据本发明，交变磁场源5可设置在基座2的内部或底部的下方，其用于在待涂面3a上产生交变磁场，并促使磁性颗粒在待涂物7内产生振动，从而使待涂物7在待涂面3a上均匀分布。当涂布在载体3的待涂面3a上的待涂物7分布不均时，待涂物7内振动的磁性颗粒将促动待涂物7产生小范围流动，从而使其均匀分布在载体3的待涂面3a上。
待涂物7可为胶液或油漆，而载体3可为玻璃基板、纸、布、树脂或机械零部件等。通过涂布装置10进行涂布，可以避免因待涂物7的分布不均而带来不良影响，例如漆层不均造成的美观效果不佳、薄膜厚度不均造成的性能降低以及TFT玻璃和彩膜滤光片的玻璃基板上的光刻胶层不均造成的显示异常。
根据本发明，交变磁场源5可为输入交流电流的第一电磁铁组，当然也可以为能够切换永磁体磁极的装置。但是，由于第一电磁铁组形成的交变磁场的灵活性较强，因此在改变输入的交变电流同时能够改变磁场强度和交变频率，以使该涂布装置10适用于不同厚度的涂布于待涂面3a的待涂物层。
在该实施例中，第一电磁铁组由以阵列分布的第一电磁铁501组成，阵列由多个排和多个列组成，各排内的任意相邻第一电磁铁501的间距L1均等于各列内的任意相邻第一电磁铁501的间距L2。这种阵列分布的第一电磁铁501组能够产生大致均匀的电磁场，促使运动在磁场内大部分或全部磁性颗粒的运动大致相同，进一步促使待涂物7在载体3的待涂面3a上分布均匀。
在一个优选的实施例中，交变电流为恒定频率的交变电流。当第一电磁铁组输入恒定频率的交变电流时，第一电磁铁组能够产生均匀有序的变化磁场，使得其作用于各磁性颗粒的磁力和时间相等，从而使得各磁性颗粒的往复运动的行程大致相同，更进一步地促使待涂物7在载体3的待涂面3a上分布均匀。
在一个实施例中，各第一电磁铁501均为U形电磁铁，各U形电磁铁的缠绕方式和电流方向均相同，其开口端均处于同一平面并与承载面2a相平行。其中，U形电磁铁501的开口距离等于其与相邻U形电磁铁501之间的间隔距离。通过这种方式，可以促使交变磁场的磁场线的分布趋近均匀。
在另一个实施例中，各第一电磁铁501均为条形电磁铁，各条形电磁铁的缠绕方式和电流方向均相同，其一端均处于同一平面并与承载面2a相平行。通过这种方式，可以促使交变磁场的磁场线的分布趋近均匀。
在一个实施例中，待涂物7为光刻胶，而载体3为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。通过根据本发明的涂布装置10在玻璃基板上涂布的光刻胶，能够确保涂布于玻璃基板的光刻胶层的分布趋近于均匀，进而避免显示屏出现异常。
交流电流的频率优选大于3000Hz，而磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，并且每毫升混合物内含有100-200粒磁性颗粒。所述的磁性颗粒可优选为铁氧体颗粒或NdFeB颗粒。通过这种方法，不仅可以确保光刻胶层的分布均匀，满足液晶面板TFT或彩膜滤光片的要求，而且还可以避免磁性颗粒干扰显示面板的正常显示。
为了避免载体的待涂面3a外缘处的待涂物7外流，涂布装置10还包括设置在承载面2a的边缘处下方的恒定磁场源6。恒定磁场源6处于虚线框B外并围绕着虚线框B分布，而交变磁场源5处于虚线框B内。恒定磁场源6构造成能够促使磁性颗粒在待涂面3a的边缘处进行堆积，从而阻止待涂物7外流。由此，可以避免资源浪费，扩大涂布后载体的可利用面积，从而省略后续的切边步骤，提 高生产效率。
如图2所示，恒定磁场源6可为输入直流电流的第二电磁铁组。第二电磁铁组由多个环绕在交变磁场源外的第二电磁铁601组成，任意相邻的第二电磁铁601的间隔距离L3为定值。第二电磁铁601既可以是U形电磁铁，也可以条形电磁铁。这种间隔距离相等的第二电磁铁601能够产生均匀电场，以使待涂面3a的边缘处的磁性颗粒的分布比较均匀。
除此之外，本发明还提供了一种涂布方法，其步骤包括：将混入磁性颗粒和待涂物涂布在载体的上；在待涂面上施加交变磁场以促使磁性颗粒在待涂物内产生振动，从而使得待涂物在待涂面上分布均匀。当涂布在载体的待涂面上的待涂物分布不均时，待涂物内振动的磁性颗粒将促动待涂物产生小范围流动，从而使其均匀分布在载体的待涂面上。
待涂物可为胶液或油漆，而载体可为玻璃基板、纸、布、树脂或机械零部件等。通过这种涂布方法，可以避免因待涂物的分布不均而给待涂布后的载体带来不良影响，例如漆层不均造成的美观效果不佳、薄膜厚度不均造成的性能降低以及TFT玻璃和彩膜滤光片的玻璃基板上的光刻胶层不均造成的显示异常。
根据本发明的交变磁场由输入交变电流的电磁铁组形成，当然也可以由能够切换永磁体磁极的装置形成。但是，由于电磁铁组形成的交变磁场的灵活性较强，因此在改变输入的交变电流同时能够改变磁场强度和交变频率，以使该涂布方法适用于不同厚度的涂布于待涂面的待涂物层。
在一个实施例中，电磁铁组是由以阵列分布的电磁铁组成的。见图2，阵列由多个排和多个列组成，各排内的任意相邻电磁铁的间距L1均等于各列内的任意相邻电磁铁的间距L2。这种阵列分布的电磁铁组能够产生大致均匀的电磁场，促使运动在磁场内大部分磁性颗粒运动大致相同，进一步促使待涂物在载体的待涂面上分布均匀。
在一个优选的实施例中，交变电流为恒定频率的交变电流。当电磁铁组输入恒定频率的交变电流时，电磁铁组能够产生均匀有序的变化磁场，使得其作用于各磁性颗粒的磁力和时间相等，从而使得各磁性颗粒的往复运动的行程大致相同，更进一步地促使待涂物在载体的待涂面上分布均匀。
在一个实施例中，待涂物为光刻胶，而载体为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。使用根据本发明的涂布方法在玻璃基板上涂布的光刻胶，能 够确保涂布于玻璃基板的光刻胶层的分布趋近于均匀，进而避免在显示屏上出现宏观色不均。
电流频率的交流电流的频率选择成大于3000Hz，磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，每毫升混合物内含有100-200粒磁性颗粒。其中，所述的磁性颗粒可优选为铁氧体颗粒或NdFeB颗粒。通过这种方法，不仅可以确保光刻胶层的分布均匀，满足液晶面板TFT或彩膜滤光片的需求，而且还可以避免磁性颗粒干扰显示屏的正常显示。
为了避免载体的待涂面外缘处的待涂物外流，可在待涂面的边缘处施加恒定磁场，以促使磁性颗粒在待涂面的边缘处进行堆积，从而阻止待涂物外流。由此，可以避免资源浪费，提高涂布后载体的可利用面积，从而可以省略后续的切边步骤，提高生产效率。
需要说明的是，由于本领域技术人员根据实际的载体3和待涂物7能够选择合适的电压、电流和电磁铁线圈圈数等参数，因此为了节约篇幅不再详述。
根据本发明的涂布方法及涂布装置10能够把待涂物均匀涂布在载体的待涂面上，以避免因待涂物的分布不均而给载体带来不良影响，例如因光刻胶的分布不均而造成液晶面板的宏观色不均。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (15)

  1. 一种涂布方法，其中，包括步骤：
    步骤1，将混入磁性颗粒和待涂物涂布在载体的待涂面上；
    步骤2，在所述待涂面上施加交变磁场，以促使所述磁性颗粒在所述待涂物内产生振动，从而使得所述待涂物在所述待涂面上均匀分布。
  2. 根据权利要求1所述的涂布方法，其中，所述交变磁场由输入交变电流的电磁铁组形成。
  3. 根据权利要求2所述的涂布方法，其中，所述电磁铁组由以阵列分布的电磁铁组成，所述阵列由多个排和多个列组成，所述排内任意相邻的所述电磁铁的间距等于所述列内任意相邻的所述电磁铁的间距。
  4. 根据权利要求3所述的涂布方法，其中，所述交变电流为恒定频率的交流电流。
  5. 根据权利要求4所述的涂布方法，其中，所述待涂物为光刻胶，而所述载体为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。
  6. 根据权利要求5所述的涂布方法，其中，所述交流电流的频率大于3000Hz，所述磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，每毫升所述混合物内含有100-200粒所述磁性颗粒。
  7. 根据权利要求4所述的涂布方法，其中，在步骤2中，在所述待涂面的边缘处施加恒定磁场，以促使所述磁性颗粒在所述待涂面的边缘处进行堆积，以阻止所述待涂物外流。
  8. 一种涂布装置，其包括用于放置载体的承载面，其中，所述涂布装置还包括能够把混入磁性颗粒的待涂物涂布在所述载体的待涂面上的涂布机构，以及设在所述承载面下方的交变磁场源，其中，所述交变磁场源构造成能够在所述待涂面上产生交变磁场，并促使所述磁性颗粒在所述待涂物内产生振动，从而使所述待涂物在所述待涂面上均匀分布。
  9. 根据权利要求8所述的涂布装置，其中，所述交变磁场源为输入交流电流的第一电磁铁组。
  10. 根据权利要求9所述的涂布装置，其中，所述电第一磁铁组由以阵列分布的第一电磁铁组成，所述阵列由多个排和多个列组成，所述排内任意相邻的所 述第一电磁铁的间距等于所述列内任意相邻的所述第一电磁铁的间距。
  11. 根据权利要求10所述的涂布装置，其中，所述交流电流为恒定频率的交流电流。
  12. 根据权利要求11所述的涂布装置，其中，所述待涂物为光刻胶，而所述载体为制造液晶面板TFT玻璃或彩膜滤光片的玻璃基板。
  13. 根据权利要求12所述的涂布装置，其中，所述交流电流的频率大于3000Hz，所述磁性颗粒选择成能够在150℃-300℃时失去磁性的且粒径为10-99nm的颗粒，每毫升所述混合物内含有100-200粒所述磁性颗粒。
  14. 根据权利要求11所述的涂布装置，其中，还包括设置在所述承载面的边缘处下方的恒定磁场源，所述恒定磁场源构造成能够促使所述磁性颗粒在所述待涂面的边缘处进行堆积，从而阻止所述待涂物外流。
  15. 根据权利要求14所述的涂布装置，其中，所述恒定磁场为输入直流电流的第二电磁铁组，所述第二电磁铁组由多个环绕在所述交变磁场源外的电磁铁组成，任意相邻所述第二电磁铁的间隔距离为定值。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962082A (en) * 1997-08-19 1999-10-05 Aveka, Inc. Process for applying liquid coatings to solid particulate substrates
CN1809425A (zh) * 2003-04-25 2006-07-26 株式会社半导体能源研究所 使用带电粒子束的液滴吐出装置及使用该装置的图案制作方法
JP2011259593A (ja) * 2010-06-08 2011-12-22 Honda Motor Co Ltd インシュレータおよびその形成方法
CN102527611A (zh) * 2011-12-08 2012-07-04 吴江云峰金属购件涂装有限公司 一种涂装流平固化炉
CN202410971U (zh) * 2011-12-08 2012-09-05 吴江云峰金属购件涂装有限公司 涂装流平固化炉

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2691602B2 (ja) * 1989-02-08 1997-12-17 コニカ株式会社 塗布方法及びその装置
JP3806472B2 (ja) * 1996-11-18 2006-08-09 株式会社アドアップ 薄膜形成装置及び薄膜形成方法
CN1958306A (zh) * 2006-09-11 2007-05-09 台瀛造漆工业股份有限公司 使涂料喷涂呈立体视觉效果纹饰图案的制造方法
KR100882735B1 (ko) * 2007-03-19 2009-02-06 도레이새한 주식회사 이방성 전도필름 및 이의 접착방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5962082A (en) * 1997-08-19 1999-10-05 Aveka, Inc. Process for applying liquid coatings to solid particulate substrates
CN1809425A (zh) * 2003-04-25 2006-07-26 株式会社半导体能源研究所 使用带电粒子束的液滴吐出装置及使用该装置的图案制作方法
JP2011259593A (ja) * 2010-06-08 2011-12-22 Honda Motor Co Ltd インシュレータおよびその形成方法
CN102527611A (zh) * 2011-12-08 2012-07-04 吴江云峰金属购件涂装有限公司 一种涂装流平固化炉
CN202410971U (zh) * 2011-12-08 2012-09-05 吴江云峰金属购件涂装有限公司 涂装流平固化炉

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