WO2017024676A1 - 涂布装置 - Google Patents

涂布装置 Download PDF

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Publication number
WO2017024676A1
WO2017024676A1 PCT/CN2015/092719 CN2015092719W WO2017024676A1 WO 2017024676 A1 WO2017024676 A1 WO 2017024676A1 CN 2015092719 W CN2015092719 W CN 2015092719W WO 2017024676 A1 WO2017024676 A1 WO 2017024676A1
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Prior art keywords
injection head
wall
syringe
cooling
cooling device
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PCT/CN2015/092719
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English (en)
French (fr)
Inventor
余威
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/893,175 priority Critical patent/US9943866B2/en
Publication of WO2017024676A1 publication Critical patent/WO2017024676A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/001—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces incorporating means for heating or cooling the liquid or other fluent material

Definitions

  • the present invention relates to a coating apparatus, and more particularly to a coating apparatus having a cooling apparatus.
  • An organic light emitting display that is, an OLED display
  • OLED display is a new generation of display by forming an organic thin film on a substrate, wherein the organic thin film is wrapped between a cathode metal and an anode metal.
  • the cathode metal and the anode metal are applied with a voltage, and the organic film emits light.
  • the packaging process of the OLED device is required.
  • the general packaging method is to apply the frame glue on the periphery of the flat glass, and then UV-curing after bonding with the OLED substrate pair, the two pieces of glass and the frame glue form a closed space, and the organic film is therein.
  • the liquid desiccant may be dropped on the inside of the frame glue before being packaged into a box. After the package is completed, the heating process is performed at 80 ° C to 100 ° C. The liquid desiccant cures to a solid state and absorbs moisture that penetrates into the two sheets of glass, thereby extending the life of the OLED device. In the prior art, the liquid desiccant is completed by dripping using a coating device.
  • thermosetting liquid desiccant it is generally required to be stored at a low temperature (for example, 0 to 5 ° C) in a liquid state; when it is thawed to room temperature, it is also in a liquid state, and the process is dripped using a coating device, but the thermosetting liquid desiccant is fixed at room temperature. Partial hardening occurs after the time, so that the material in the coating device cannot be dripped, and the process cannot be completed.
  • an object of the present invention is to provide a coating device comprising: a syringe, an injection head, and a first cooling device, wherein the syringe is connected to the injection head,
  • the injection head has a nozzle at its bottom end, and the first cooling device is disposed on an outer wall of the syringe.
  • the first cooling device is a first cooling duct, and the first cooling duct is disposed around an outer wall of the syringe.
  • the first cooling duct includes: a first tube body, a first coolant inlet end and a first coolant outlet end respectively located at two ends of the first tube body, wherein the first coolant inlet end Located at the top of the outer wall of the syringe, the first coolant outlet end is located at the bottom of the outer wall of the syringe.
  • the coating device further includes: a second cooling device, wherein the second cooling device is disposed on an outer wall of the injection head.
  • the second cooling device is a second cooling duct, and the second cooling duct is disposed on an outer wall of the injection head.
  • the second cooling duct comprises: a second tube body, a second coolant inlet end and a second coolant outlet end respectively located at two ends of the second tube body, wherein the second coolant inlet end Located at the top of the outer wall of the injection head, the second coolant outlet end is located at the bottom of the outer wall of the injection head.
  • the coating device of the present invention prevents the liquid in the syringe and/or the injection head from being hardened due to hardening at room temperature for a long time by providing a cooling device on the outer wall of the syringe and/or the injection head. The phenomenon of squirting.
  • Figure 1 is a schematic structural view of a coating apparatus according to a first embodiment of the present invention
  • Fig. 2 is a schematic structural view of a coating apparatus according to a second embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a coating apparatus according to a first embodiment of the present invention.
  • a coating apparatus includes a syringe 10, an injection head 20, and a first cooling device 30.
  • the injection head 20 is connected in series with the syringe 10 such that a liquid such as a liquid desiccant can enter the injection head 20 from the syringe 10; the bottom end of the injection head 20 has a nozzle 21 which will enter The liquid in the injection head 20 is ejected; the first cooling device 30 is disposed on the outer wall of the syringe 10 to cool the liquid in the syringe 10.
  • the first cooling device 30 is a first cooling duct, wherein the first cooling duct 30 is circumferentially disposed on an outer wall of the syringe 10.
  • the first cooling duct 30 usually has a cooling liquid whose temperature is controlled to be circulated at 0 to 5 ° C to ensure that the liquid in the syringe 10 is in a low temperature environment.
  • the first cooling duct 30 includes: a first tube body 31, a first coolant inlet end 32 and a first coolant outlet end 33 respectively located at opposite ends of the first tube body 31, wherein the first coolant inlet end 32 Located at the top of the outer wall of the syringe 10, the first coolant outlet end 33 is located at the bottom of the outer wall of the syringe 10.
  • the coolant enters from the first coolant outlet end 32 and flows through the first tube body 31 to the first coolant outlet end 33, thereby flowing out of the first coolant outlet end 33.
  • the first cooling device 30 is not limited to the cooling duct shown in Fig. 1, but may be other suitable types of temperature controllable cooling devices.
  • Fig. 2 is a schematic structural view of a coating apparatus according to a second embodiment of the present invention.
  • a coating apparatus includes a syringe 10, an injection head 20, a first cooling device 30, and a second cooling device 40.
  • the injection head 20 is connected in series with the syringe 10 such that a liquid such as a liquid desiccant can enter the injection head 20 from the syringe 10; the bottom end of the injection head 20 has a nozzle 21 which will enter The liquid in the injection head 20 is ejected; the first cooling device 30 is disposed on the outer wall of the syringe 10 to cool the liquid in the syringe 10; the second cooling device 40 is disposed on the outer wall of the injection head 20 to The liquid in the injection head 20 is cooled.
  • a liquid such as a liquid desiccant
  • the first cooling device 30 is a first cooling duct, wherein the first cooling duct 30 is circumferentially disposed on an outer wall of the syringe 10.
  • the first cooling duct 30 usually has a cooling liquid whose temperature is controlled to be circulated at 0 to 5 ° C to ensure that the liquid in the syringe 10 is in a low temperature environment.
  • the first cooling duct 30 includes: a first tube body 31, a first coolant inlet end 32 and a first coolant outlet end 33 respectively located at opposite ends of the first tube body 31, wherein the first coolant inlet end 32 Located at the top of the outer wall of the syringe 10, the first coolant outlet end 33 is located at the bottom of the outer wall of the syringe 10.
  • the coolant enters from the first coolant outlet end 32 and flows through the first tube body 31 to the first coolant outlet end 33, thereby flowing out of the first coolant outlet end 33.
  • the second cooling device 40 is a second cooling duct, wherein the second cooling duct 40 is disposed around the outer wall of the injection head 20.
  • the second cooling duct 40 usually has a cooling liquid whose temperature is controlled to be circulated at 0 to 5 ° C to ensure that the liquid in the injection head 20 is in a low temperature environment.
  • the second cooling duct 40 includes: a second tube body 41, a second coolant inlet end 42 and a first coolant outlet end 43 respectively located at opposite ends of the second tube body 41, wherein the second coolant inlet end 42 Located at the top of the outer wall of the injection head 20, the first coolant outlet end 43 is located at the bottom of the outer wall of the injection head 20.
  • the coolant enters from the first coolant outlet end 32 and flows through the second tube 41 to the first coolant outlet end 43 to flow out of the first coolant outlet end 43.
  • first cooling device 30 and the second cooling device 40 are not limited to the cooling ducts shown in Fig. 2, but they may also be other suitable types of temperature controllable cooling devices.
  • the liquid in the syringe and/or the injection head is prevented by providing a cooling device on the outer wall of the syringe and/or the injection head. It hardens to evaporate at room temperature for a long time.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)

Abstract

一种涂布装置，包括：注射筒(10)、注射头(20)、第一冷却装置(30)，其中注射筒(10)与注射头(20)贯通连接，注射头(20)的底端具有喷嘴(21)，第一冷却装置(30)设置在注射筒(10)的外壁上。该涂布装置通过在注射筒和/或注射头的外壁设置冷却装置，避免注射筒和/或注射头中的液体因长时间在室温下发生硬化而无法顺利喷出。

Description

涂布装置 技术领域
本发明涉及一种涂布装置，尤其是涉及一种具有冷却装置的涂布装置。
背景技术
有机发光显示器，即OLED显示器，是新一代的显示器，其通过在基板上制作有机薄膜，其中，有机薄膜被包在阴极金属和阳极金属之间。给阴极金属和阳极金属加电压，有机薄膜会发光。然而，由于有机薄膜对水气和氧气很敏感，其容易因水氧发生老化变性，亮度和寿命会出现明显衰减，所以需要对OLED器件进行封装制程。一般的封装方式是在平板玻璃周边涂布边框胶，然后与OLED基板对组贴合后紫外线固化，两片玻璃与边框胶形成密闭空间，有机薄膜在其中。
为了避免渗透到两片玻璃内的水汽影响OLED器件寿命，可在封装成盒前，在边框胶内侧滴入液态干燥剂，待成盒完成封装制程后，进行80℃～100℃的加热，使液态干燥剂固化变成固态，用于吸收渗透进两片玻璃内的水汽，从而延长OLED器件寿命。在现有技术中，液态干燥剂是利用涂布装置滴下完成的。
对于热固型液态干燥剂，一般需低温保存(如0～5℃)，状态为液态；解冻至室温时也是液态，使用涂布装置滴下完成制程，但是热固型液态干燥剂在室温下一定时间后会出现部分硬化，导致涂布装置内的材料无法滴出，从而无法完成制程。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种涂布装置，其包括：注射筒、注射头、第一冷却装置，其中，所述注射筒与所述注射头贯通连接，所述注射头的底端具有喷嘴，所述第一冷却装置设置在所述注射筒的外壁上。
进一步地，所述第一冷却装置为第一冷却导管，所述第一冷却导管环绕设置在所述注射筒的外壁上。
进一步地，所述第一冷却导管包括：第一管体、分别位于所述第一管体两端的第一冷却液入口端和第一冷却液出口端，其中，所述第一冷却液入口端位于所述注射筒的外壁的顶部，所述第一冷却液出口端位于所述注射筒的外壁的底部。
进一步地，所述涂布装置还包括：第二冷却装置，其中，所述第二冷却装置设置在所述注射头的外壁上。
进一步地，所述第二冷却装置为第二冷却导管，所述第二冷却导管环绕设置在所述注射头的外壁上。
进一步地，所述第二冷却导管包括：第二管体、分别位于所述第二管体两端的第二冷却液入口端和第二冷却液出口端，其中，所述第二冷却液入口端位于所述注射头的外壁的顶部，所述第二冷却液出口端位于所述注射头的外壁的底部。
本发明的有益效果：本发明的涂布装置，通过在注射筒和/或注射头的外壁设置冷却装置，避免注射筒和/或注射头中的液体因长时间在室温下发生硬化而无法顺利喷出的现象。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的第一实施例的涂布装置的结构示意图；
图2是根据本发明的第二实施例的涂布装置的结构示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本 领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。在附图中，为了清楚器件，夸大了层和区域的厚度。相同的标号在整个说明书和附图中可用来表示相同的元件。将理解的是，尽管在这里可使用术语“第一”、“第二”等来描述各种元件，但是这些元件不应受这些术语的限制。这些术语仅用于将一个元件与另一个元件区分开来。
图1是根据本发明的第一实施例的涂布装置的结构示意图。
参照图1，根据本发明的第一实施例的涂布装置包括：注射筒10、注射头20、第一冷却装置30。
具体而言，注射头20与注射筒10贯通连接，以使液体(诸如液态干燥剂)能够从注射筒10进入注射头20中；注射头20的底端具有喷嘴21，该喷嘴21将进入到注射头20中的液体喷出；第一冷却装置30设置在注射筒10的外壁上，从而对注射筒10中的液体进行冷却。
进一步地，第一冷却装置30为第一冷却导管，其中，该第一冷却导管30环绕设置在注射筒10的外壁上。该第一冷却导管30中通常具有冷却液，该冷却液的温度控制在0～5℃进行循环，从而确保注射筒10中的液体处于低温环境。
具体地，第一冷却导管30包括：第一管体31、分别位于第一管体31两端的第一冷却液入口端32和第一冷却液出口端33，其中，第一冷却液入口端32位于注射筒10的外壁的顶部，第一冷却液出口端33位于注射筒10的外壁的底部。冷却液由第一冷却液出口端32进入，经由第一管体31流向第一冷却液出口端33，从而由第一冷却液出口端33流出。
应当说明的是，在本发明中，第一冷却装置30并不限于图1所示的冷却导管，其还可以是其他合适类型的温度可控的冷却装置。
图2是根据本发明的第二实施例的涂布装置的结构示意图。
参照图2，根据本发明的第二实施例的涂布装置包括：注射筒10、注射头20、第一冷却装置30、第二冷却装置40。
具体而言，注射头20与注射筒10贯通连接，以使液体(诸如液态干燥剂)能够从注射筒10进入注射头20中；注射头20的底端具有喷嘴21，该喷嘴21将进入到注射头20中的液体喷出；第一冷却装置30设置在注射筒10的外壁上，以对注射筒10中的液体进行冷却；第二冷却装置40设置在注射头20的外壁上，以对注射头20中的液体进行冷却。
进一步地，第一冷却装置30为第一冷却导管，其中，该第一冷却导管30环绕设置在注射筒10的外壁上。该第一冷却导管30中通常具有冷却液，该冷却液的温度控制在0～5℃进行循环，从而确保注射筒10中的液体处于低温环境。
具体地，第一冷却导管30包括：第一管体31、分别位于第一管体31两端的第一冷却液入口端32和第一冷却液出口端33，其中，第一冷却液入口端32位于注射筒10的外壁的顶部，第一冷却液出口端33位于注射筒10的外壁的底部。冷却液由第一冷却液出口端32进入，经由第一管体31流向第一冷却液出口端33，从而由第一冷却液出口端33流出。
此外，进一步地，第二冷却装置40为第二冷却导管，其中，该第二冷却导管40环绕设置在注射头20的外壁上。该第二冷却导管40中通常具有冷却液，该冷却液的温度控制在0～5℃进行循环，从而确保注射头20中的液体处于低温环境。
具体地，第二冷却导管40包括：第二管体41、分别位于第二管体41两端的第二冷却液入口端42和第一冷却液出口端43，其中，第二冷却液入口端42位于注射头20的外壁的顶部，第一冷却液出口端43位于注射头20的外壁的底部。冷却液由第一冷却液出口端32进入，经由第二管体41流向第一冷却液出口端43，从而由第一冷却液出口端43流出。
应当说明的是，在本发明中，第一冷却装置30和第二冷却装置40并不限于图2所示的冷却导管，它们还可以是其他合适类型的温度可控的冷却装置。
综上所述，根据本发明的第一实施例和第二实施例的涂布装置，通过在注射筒和/或注射头的外壁设置冷却装置，避免注射筒和/或注射头中的液体因长时间在室温下发生硬化而无法顺利喷出的现象。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (12)

  1. 一种涂布装置，其中，包括：注射筒、注射头、第一冷却装置，其中，所述注射筒与所述注射头贯通连接，所述注射头的底端具有喷嘴，所述第一冷却装置设置在所述注射筒的外壁上。
  2. 根据权利要求1所述的涂布装置，其中，所述第一冷却装置为第一冷却导管，所述第一冷却导管环绕设置在所述注射筒的外壁上。
  3. 根据权利要求2所述的涂布装置，其中，所述第一冷却导管包括：第一管体、分别位于所述第一管体两端的第一冷却液入口端和第一冷却液出口端，其中，所述第一冷却液入口端位于所述注射筒的外壁的顶部，所述第一冷却液出口端位于所述注射筒的外壁的底部。
  4. 根据权利要求1所述的涂布装置，其中，所述涂布装置还包括：第二冷却装置，其中，所述第二冷却装置设置在所述注射头的外壁上。
  5. 根据权利要求2所述的涂布装置，其中，所述涂布装置还包括：第二冷却装置，其中，所述第二冷却装置设置在所述注射头的外壁上。
  6. 根据权利要求3所述的涂布装置，其中，所述涂布装置还包括：第二冷却装置，其中，所述第二冷却装置设置在所述注射头的外壁上。
  7. 根据权利要求4所述的涂布装置，其中，所述第二冷却装置为第二冷却导管，所述第二冷却导管环绕设置在所述注射头的外壁上。
  8. 根据权利要求5所述的涂布装置，其中，所述第二冷却装置为第二冷却导管，所述第二冷却导管环绕设置在所述注射头的外壁上。
  9. 根据权利要求6所述的涂布装置，其中，所述第二冷却装置为第二冷却导管，所述第二冷却导管环绕设置在所述注射头的外壁上。
  10. 根据权利要求7所述的涂布装置，其中，所述第二冷却导管包括：第二管体、分别位于所述第二管体两端的第二冷却液入口端和第二冷却液出口 端，其中，所述第二冷却液入口端位于所述注射头的外壁的顶部，所述第二冷却液出口端位于所述注射头的外壁的底部。
  11. 根据权利要求8所述的涂布装置，其中，所述第二冷却导管包括：第二管体、分别位于所述第二管体两端的第二冷却液入口端和第二冷却液出口端，其中，所述第二冷却液入口端位于所述注射头的外壁的顶部，所述第二冷却液出口端位于所述注射头的外壁的底部。
  12. 根据权利要求9所述的涂布装置，其中，所述第二冷却导管包括：第二管体、分别位于所述第二管体两端的第二冷却液入口端和第二冷却液出口端，其中，所述第二冷却液入口端位于所述注射头的外壁的顶部，所述第二冷却液出口端位于所述注射头的外壁的底部。
PCT/CN2015/092719 2015-08-13 2015-10-23 涂布装置 WO2017024676A1 (zh)

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