CN103895346B - 一种喷墨涂布装置及喷涂方法 - Google Patents

一种喷墨涂布装置及喷涂方法 Download PDF

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CN103895346B
CN103895346B CN201410135848.5A CN201410135848A CN103895346B CN 103895346 B CN103895346 B CN 103895346B CN 201410135848 A CN201410135848 A CN 201410135848A CN 103895346 B CN103895346 B CN 103895346B
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CN103895346A (zh
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严茂程
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TCL China Star Optoelectronics Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
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    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • B05B17/00Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
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    • B05B17/0638Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00Methods for coating glass
    • C03C2218/10Deposition methods
    • C03C2218/11Deposition methods from solutions or suspensions
    • C03C2218/119Deposition methods from solutions or suspensions by printing
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10Deposition of organic active material
    • H10K71/12Deposition of organic active material using liquid deposition, e.g. spin coating
    • H10K71/13Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
    • H10K71/135Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing

Abstract

本发明提供了一种喷墨涂布装置,用于在设有涂布间隔带的玻璃基板上喷涂油墨,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,所述喷嘴包括油墨入射口和油墨喷射口,所述油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,在涂布间隔带中形成不同颜色的油墨喷涂层,所述油墨喷射口的内径大于油墨入射口的内径。采用了喇叭状的喷嘴,相邻喷嘴之间无间隙,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,避免了残余喷墨聚集黏结于喷嘴的外表面上,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。

Description

一种喷墨涂布装置及喷涂方法
技术领域
本发明涉及一种玻璃基板生产装置及生产方法,尤其是指一种喷墨涂布装置及喷涂方法。
背景技术
参照图1所示,传统的喷墨涂布装置中,喷嘴200呈直筒型,与玻璃基板上的涂布间隔带300相互对应配置,喷嘴分别向相对应的涂布间隔带喷涂油墨,由于喷嘴之间设有一定的间隙,致使在油墨喷涂过程中,油墨容易残留在间隙台面上,长期使用,油墨黏结于喷嘴附近,容易导致喷嘴堵塞,使其喷涂不畅等现象,需要间断性地对喷嘴进行清洗。同时,喷涂的油墨滴落于涂布间隔带后,油墨在相邻的间隔带中扩散,容易发生扩散不均,厚度不一的现象,油墨涂布层的厚度难于控制。
发明内容
为了解决上述的技术问题,本发明提供了一种可均匀喷涂油墨,喷嘴免清洗的喷墨涂布装置及其喷涂方法,以获得厚度均一的涂布层。
本发明提供了一种喷墨涂布装置,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,其中,所述喷嘴包括油墨入射口和油墨喷射口,所述油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,所述油墨喷射口的内径大于油墨入射口的内径。
在本发明的优选实施例中,所述相邻喷嘴之间无间隙,这样,避免喷嘴所喷出的油墨粘接在喷嘴台面上,造成喷嘴堵塞,影响油墨的持续喷涂。同时,所述喷嘴呈喇叭状,所述喷嘴的油墨喷射口比油墨入射口的内径大5-200微米,所述油墨喷射口的外张角度为20-89度,使得由油墨喷射口喷出的油墨滴的形状为椭圆状,扩大了油墨在水平方向上的表面积,使其可均匀地注入各个涂布间隔带上。所述油墨喷射口呈内凹形,可有效防止油墨残留于其上。
在本发明的优选实施例中,所述喷墨涂布装置进一步包括压电传感器,其设于喷嘴的上方,通过改变电压而产生不同大小的拉力作用于喷嘴上,以改变喷嘴的口径大小,以调整油墨的喷射量。所述压电传感器与喷嘴一一对应,其为压电陶瓷传感器。
其中,所述玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,喷嘴向玻璃基板喷涂油墨,在涂布间隔带中形成不同颜色的油墨喷涂层。
本发明还提供了一种喷墨涂布方法,其包括以下步骤:
步骤1)将玻璃基板放置于基台上,将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
在步骤2)中,从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨。
与现有技术相比,本发明一种喷墨涂布装置采用了喇叭状的喷嘴,相互紧密依靠,相邻喷嘴之间无间隙,既提高了油墨的喷涂量,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,同时,由于喷嘴之间无间隙,避免了残余喷墨聚集黏结于喷嘴的外表面上,造成喷嘴的堵塞,减少了喷嘴清洗的工序,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。并且,通过改变施加于压电传感器上的电压大小,随之改变喷嘴的口径,从而调整油墨的喷射量,因此,可微量调整油墨喷射量,使得喷涂工艺更为精确化。
附图说明
图1为现有一种喷墨涂布装置的结构示意图;
图2为本发明一种喷墨涂布装置的结构示意图。
具体实施方式
为了使得从喷嘴里喷出的油墨,能够更为均匀地喷涂于玻璃基板的涂布间隔带上,油墨扩散均匀,涂布厚度均一,本发明提供了一种喷墨涂布装置1,用于在设有涂布间隔带的玻璃基板2上喷涂油墨,其包括基台10和喷头12,所述基台10用于放置玻璃基板2,所述喷头12包括若干个喷嘴14,玻璃基板2上布置有若干个平行排列的分割柱20,分割柱20之间形成涂布间隔带30,其中,所述喷嘴14包括油墨入射口140和油墨喷射口142,所述油墨由油墨入射口140引入,由油墨喷射口142向玻璃基板2喷射出,在涂布间隔带30中形成不同颜色的油墨喷涂层40,所述油墨喷射口142的内径大于油墨入射口140的内径。
其中,玻璃基板2上设置有若干个分割柱20,在分割柱20之间形成涂布间隔带30,各个涂布间隔带30间距相等,用于填充不同颜色的油墨。涂布间隔带30排列方向分别与喷嘴14相平行,喷嘴14喷射出的油墨填充于涂布间隔带30上。一组或多组涂布间隔带30中可分别填充不同颜色的油墨,所述油墨为配向膜油墨。
喷头12安装于基台10下端,其包括若干个相互并排的喷嘴14,所述喷嘴14与玻璃基板2上的涂布间隔带30相对。在本发明的优选实施例中,所述相邻喷嘴14之间无间隙,这样,避免喷嘴14所喷出的油墨粘接在喷嘴台面上,造成喷嘴堵塞,影响油墨的持续喷涂,由于残留的液体无法聚集黏结在喷嘴14上,也无需在喷涂过程中,对喷嘴14进行清洁,从而简化了喷涂工艺,提高了生产效率和产能,并且,减少了漏涂的现象,保障了喷涂的质量。
同时,所述喷嘴14呈喇叭状,所述喷嘴14的油墨喷射口142比油墨入射口140的内径大5-200微米,优选100-150微米;所述油墨喷射口142的外张角度为20-89度,优选30-60度。喇叭状的喷嘴可提高所喷出的油墨量,使得由油墨喷射口142喷出的油墨滴的形状为椭圆状,扩大了油墨在水平方向上的表面积,油墨的宽度加大,高度变小,使其可均匀地注入各个涂布间隔带上,喷涂量均匀,各个油墨喷涂层的厚度均一。并使得吐出的油墨在空中连接融合形成一薄膜,落到油墨间隔带30中,覆盖于玻璃基板表面,形成油墨涂布层40。所述油墨喷射口142呈内凹形,可有效防止油墨残留在其上。由于无需根据涂布间隔带30的数量,配置一比一喷嘴14,可减少喷嘴的配置数量。
在本发明的优选实施例中,所述喷墨涂布装置1进一步包括压电传感器16,其设于喷嘴14的上方,通过改变电压而产生不同大小的拉力作用于喷嘴14上,以改变喷嘴14的口径大小,以调整油墨的喷射量。所述压电传感器16与喷嘴14一一对应,其为压电陶瓷传感器。所述压电传感器16通电后产生电场,使得喷嘴在外加电场作用下,产生机械变形,通过改变压电传感器16上的电压大小,以调整喷嘴的受力大小,使得喷嘴的外形和口径发生相应的改变,若电压增大,则喷嘴受力增大,随之喷嘴的口径也相应增大,喷射的油墨量也增大;即所述喷射的油墨量与电压呈正比例关系。
所述涂布间隔带30中放置彩色滤光片、TFT基板或OLED基板涂布成膜。
本发明还提供了一种喷墨涂布方法,其包括以下步骤:
步骤1)将玻璃基板放置于基台上,通过对位控制系统将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
在本发明的优选实施例中,在步骤2)中,设定喷涂范围、时间和所喷涂的喷嘴,启动喷嘴,使得从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨,这样,可根据设定的要求进行喷涂,从而获得涂布均匀的油墨喷涂层。
本发明一种喷墨涂布装置采用了喇叭状的喷嘴,相互紧密依靠,相邻喷嘴之间无间隙,既提高了油墨的喷涂量,使得喷涂的油墨呈椭圆状,从而更均匀地分散于各个油墨间隔带中,形成厚度均一的油墨喷涂层,同时,由于喷嘴之间无间隙,避免了残余喷墨聚集黏结于喷嘴的外表面上,造成喷嘴的堵塞,减少了喷嘴清洗的工序,保证了油墨的顺畅喷涂,从而提高了喷涂的效率和品质。并且,通过改变施加于压电传感器上的电压大小,随之改变喷嘴的口径,从而调整油墨的喷射量,因此,可微量调整油墨喷射量,使得喷涂工艺更为精确化。

Claims (10)

1.一种喷墨涂布装置,其包括基台和喷头,所述基台用于放置玻璃基板,所述喷头包括若干个喷嘴,其特征在于:所述喷嘴包括油墨入射口和油墨喷射口,油墨由油墨入射口引入,由油墨喷射口向玻璃基板喷射出,所述油墨喷射口的内径大于油墨入射口的内径。
2.根据权利要求1所述的喷墨涂布装置,其特征在于:相邻的所述喷嘴之间无间隙。
3.根据权利要求2所述的喷墨涂布装置,其特征在于:所述喷嘴呈喇叭状,所述油墨喷射口呈内凹形。
4.根据权利要求1所述的喷墨涂布装置,其特征在于:所述喷墨涂布装置进一步包括压电传感器,其设于喷嘴的上方,通过改变电压而产生不同大小的拉力作用于喷嘴上,以改变喷嘴的口径大小。
5.根据权利要求4所述的喷墨涂布装置,其特征在于:所述压电传感器与喷嘴一一对应,其为压电陶瓷传感器。
6.根据权利要求2所述的喷墨涂布装置,其特征在于:所述喷嘴的油墨喷射口比油墨入射口的内径大5-200微米,所述油墨喷射口的外张角度为20-89度。
7.根据权利要求3所述的喷墨涂布装置,其特征在于:由所述油墨喷射口喷出的油墨滴的形状为椭圆状。
8.根据权利要求1所述的喷墨涂布装置,其特征在于:所述玻璃基板上布置有若干个平行排列的分割柱,分割柱之间形成涂布间隔带,喷嘴向玻璃基板喷涂油墨,在涂布间隔带中形成不同颜色的油墨喷涂层。
9.一种采用如权利要求8所述喷墨涂布装置的喷墨喷涂方法,其特征在于包括以下步骤:
步骤1)将玻璃基板放置于基台上,将玻璃基板与喷嘴相互对位;
步骤2)从喷嘴吐出油墨,形成椭圆状油墨滴,分散于玻璃基板上的涂布间隔带上,形成涂布油墨层。
10.根据权利要求9所述的喷墨涂布方法,其特征在于:在步骤2)中,从指定喷嘴向指定的涂布间隔带吐出油墨,以在指定的涂布间隔带上获得设定颜色的油墨。
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