WO2019101093A1 - 显示屏、注塑模具及家用电器 - Google Patents

显示屏、注塑模具及家用电器 Download PDF

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Publication number
WO2019101093A1
WO2019101093A1 PCT/CN2018/116647 CN2018116647W WO2019101093A1 WO 2019101093 A1 WO2019101093 A1 WO 2019101093A1 CN 2018116647 W CN2018116647 W CN 2018116647W WO 2019101093 A1 WO2019101093 A1 WO 2019101093A1
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WIPO (PCT)
Prior art keywords
display screen
display
casing
diaphragm
outer casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/116647
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English (en)
French (fr)
Inventor
张志强
胡盟奇
杨增玉
苏谦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
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Qingdao Haier Washing Machine Co Ltd
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Application filed by Qingdao Haier Washing Machine Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Publication of WO2019101093A1 publication Critical patent/WO2019101093A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present disclosure relates to the field of display device technologies, for example, to a display screen, an injection mold, and a home appliance.
  • a display screen is set to display various information of the device.
  • a display screen is arranged on the washing machine to display information such as the laundry function and the set temperature, which is convenient for the user to use.
  • the display screen is generally injection-molded, the display screen includes a display film and a resin casing, and the display film is provided with a flange structure around the film.
  • the flange structure and the back and casing of the display film are injection molded. Integral, but due to the low height of the flanged structure, only a small part of the flanged structure is combined with the resin and embedded in the resin, which causes the corners of the display screen to be prone to bubbles, which increases the defect rate of the display screen. Increased production costs.
  • the present disclosure proposes a display screen, an injection mold, and a household appliance, which solves the problem that the display screen is combined with a resin that is combined with the resin and embedded in the resin due to the low height of the display flange structure in the related art.
  • the corners are prone to bubble problems.
  • a display screen comprising: a display film, the display film comprising a flange structure, the flange structure being disposed along an edge of the display film; and a casing, the casing and the display film being injection molded
  • the flanged structure is integrally embedded in the outer casing toward an end surface of one end of the outer casing.
  • a household appliance comprising the display screen described above.
  • FIG. 1 is a schematic structural diagram of a display screen according to an embodiment
  • FIG. 2 is a top plan view of a display screen according to an embodiment
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a partial enlarged view of B in Figure 3;
  • FIG. 5 is a schematic structural diagram of a display screen showing a second recess according to an embodiment.
  • the protection of the present embodiment provides a display screen which is injection molded, as shown in FIGS. 1-3, the display screen includes an integrally injection molded display film 1 and a casing 2, as shown in FIGS. 3 and 4. It is shown that the edge of the display film 1 is provided with a flange structure 11 , and the outer casing 2 is integrally molded with the display film 1 and the flange structure 11 , and the free end of the flange structure 11 is integrally embedded in the outer casing 2 , wherein the free end finger The flange structure 11 faces one end of the outer casing 2.
  • the end surface of one end of the flange structure 11 on the display film 1 of the display screen is integrally embedded in the outer casing 2, which increases the area in which the flange structure 11 is embedded in the outer casing 2 and increases the area where the flange structure 11 is combined with the outer casing 2, so that the area of the flange structure 11 combined with the outer casing 2 is increased.
  • the display film 1 is tightly combined with the outer casing 2, and no bubbles are generated at the corners after the display screen is formed, which reduces the defect rate of the display screen and reduces the cost.
  • the outer casing 2 is injection molded from a resin.
  • the height L of the flange structure 11 is 3 mm to 4 mm, and the size of the flange structure 11 can ensure that the flange structure 11 is tightly combined with the outer casing 2, and the corners of the display screen are formed without bubbles, which is reduced.
  • the poor rate of the display reduces the cost.
  • the display diaphragm 1 further includes a diaphragm body 12, the edge of the diaphragm body 12 is connected to the flange structure 11, the diaphragm body 12 is injection molded integrally with the outer casing 2, and the flange structure 11 is composed of the diaphragm body 12.
  • the outer casing 2 is bent and formed, and the flange structure 11 is injection molded integrally with the outer casing 2.
  • the flange structure 11 is perpendicular to the diaphragm body 12.
  • the angle between the flange structure 11 and the diaphragm body 12 may also be greater than 90° but less than 180°, and the angle between the flange structure 11 and the diaphragm body 12 may also be less than 90° but greater than 0°.
  • the flanged structure 11 is disposed perpendicular to the diaphragm body 12.
  • the side surface of the side of the casing 2 which is not injection-molded with the display film 1 is circumferentially provided with a groove, and the groove is disposed near the edge of the side surface, and the groove is the first groove 21
  • the utility model has the advantages of simple structure and easy processing, and can avoid the phenomenon that the pressure of the four corners is insufficient and the injection molding does not generate a bubble.
  • the first recess 21 may be a continuous unitary structure (as shown in Fig. 2) or may be intermittently disposed (not shown). As shown in FIG.
  • the outer casing 2 can also be provided with a groove at the four corners of the side facing away from the display diaphragm 1, which is a second recess 22, has a simple structure and is easy to process, and can prevent injection of insufficient pressure at four corners. Not in place, which causes bubbles in the display.
  • the setting of the groove is selected according to the actual situation.
  • the embodiment also provides an injection mold having an injection port disposed on an area of the injection mold opposite to the back of the display screen, and the injection mold is set to inject the above display screen.
  • the height L of the flange structure 11 on the display film 1 of the display screen is 3 mm to 4 mm.
  • the embodiment increases the flange height; the injection port of the injection mold is set in the injection mold.
  • the area corresponding to the back of the display screen can effectively solve the problem that the injection port is disposed on the injection mold at a region opposite to the lower portion of the display screen, so that it is difficult for the resin to flow into the back of the display film 1 during injection molding, and the injection pressure will be Extrusion of the display film 1 causes a problem of deformation of the display film 1.
  • the embodiment further provides a method for injection molding of a display screen, comprising forming the above display screen by injection molding using the above injection mold.
  • the injection molding using the above injection mold to form the display screen includes sequentially forming the display film 1 and the outer casing 2 by injecting a liquid component into an injection port on the injection mold.
  • the embodiment also provides a household appliance including the above display screen.
  • the display has good bonding and no air bubbles.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

一种显示屏，包括显示膜片，所述显示膜片包括翻边结构，所述翻边结构沿所述显示膜片的边缘设置；及外壳，所述外壳与所述显示膜片注塑为一体结构，所述翻边结构朝向所述外壳的一端的端面整体嵌入所述外壳内。

Description

显示屏、注塑模具及家用电器
本申请要求申请日为2017年11月21日、申请号为201711166775.6、名称为“一种注塑显示屏、注塑模具及家用电器”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示装置技术领域，例如涉及一种显示屏、注塑模具及家用电器。
背景技术
相关技术中，绝大部分的空调、洗衣机、冰箱等家用电器设备都设置显示屏，显示屏设置为显示设备的各种信息。以洗衣机为例，在洗衣机上设置有显示屏，用来显示洗衣功能、设定温度等信息，方便用户的使用。
相关技术中，显示屏一般为注塑成型，显示屏包括显示膜片和树脂外壳，显示膜片的四周设置有翻边结构，在注塑过程中，翻边结构以及显示膜片的背部与外壳注塑为一体，但由于翻边结构的高度较低，翻边结构仅侧部较少部分与树脂结合并嵌入到树脂，导致显示屏的边角容易出现气泡，增加了显示屏的不良率高，极大的增加了生产成本。
发明内容
本公开提出了一种显示屏、注塑模具及家用电器，解决了由于相关技术中显示屏翻边结构的高度较低而导致与树脂结合并嵌入到树脂中的部分较少，进而导致显示屏的边角容易产生气泡的问题。
一种显示屏，包括：显示膜片，所述显示膜片包括翻边结构，所述翻边结构沿所述显示膜片的边缘设置；及外壳，所述外壳与所述显示膜片注塑为一体结构，所述翻边结构朝向所述外壳的一端的端面整体嵌入所述外壳内。
一种家用电器，包括上述的显示屏。
附图说明
图1是一实施例提供的显示屏的结构示意图；
图2是一实施例提供的显示屏的俯视图；
图3是图2中沿A-A线的剖视图；
图4是图3中B处的局部放大图；
图5是一实施例提供的显示屏显示出第二凹槽的结构示意图。
图中：
1、显示膜片；11、翻边结构；12、膜片本体；
2、外壳；21、第一凹槽；22、第二凹槽。
具体实施方式
本实施方式保护提供了一种显示屏，该显示屏采用注塑成型，如图1-图3所示，该显示屏包括一体注塑成型的显示膜片1和外壳2，如图3和图4所示，显示膜片1的边缘设置有翻边结构11，外壳2与显示膜片1以及翻边结构11注塑为一体结构，翻边结构11的自由端整体嵌入外壳2内，其中，自由端指的是翻边结构11朝向所述外壳2的一端。该显示屏的显示膜片1上的翻边结构11的一端的端面整体嵌入外壳2内，增加了翻边结构11嵌入外壳2的面积及增加了翻边结构11与外壳2结合的面积，使显示膜片1与外壳2结合紧密，显示屏成型后边角不会产生气泡，降低了显示屏的不良率，降低了成本。本实施例中，外壳2由树脂注塑成型。在一实施例中，翻边结构11的高度L为3mm-4mm，该翻边结构11尺寸的设置能够保证翻边结构11与外壳2结合紧密，显示屏成型后边角不会产生气泡，降低了显示屏的不良率，降低了成本。
如图3所示，显示膜片1还包括膜片本体12，膜片本体12的边缘与翻边结构11相连，膜片本体12与外壳2注塑为一体，翻边结构11由膜片本体12向外壳2弯折形成，且翻边结构11与外壳2注塑为一体。翻边结构11与膜片本体12相垂直。翻边结构11与膜片本体12之间的角度还可以大于90°但小于180°，翻边结构11与膜片本体12之间的角度还可以小于90°但大于0°。在一实施例中，翻边结构11与膜片本体12相垂直设置。
如图2-图4所示，外壳2未与显示膜片1注塑连接的一侧的侧面周向设置有凹槽，凹槽靠近所述侧面的边缘设置，该凹槽为第一凹槽21，结构简单，易于加工，能够避免四角压力不足而导致注塑不到位显示屏产生气泡的现象发生。第一凹槽21可以为连续的一体结构(如图2所示)，也可以间断设置(图中未示出)。如图5所示，外壳2还可以在背离显示膜片1的一侧的四角处设置凹槽，该凹槽为 第二凹槽22，结构简单，易于加工，能够避免四角压力不足而导致注塑不到位，进而导致显示屏产生气泡。凹槽的设置根据实际情况选择。
本实施方式还提供了一种注塑模具，该注塑模具设有注塑口，注塑口设置在注塑模具上与显示屏背部相对的区域，注塑模具设置为注塑上述的显示屏。该显示屏的显示膜片1上的翻边结构11的高度L为3mm-4mm，相对于相关技术中的翻边结构，本实施例增加了翻边高度；注塑模具的注塑口设置在注塑模具的与显示屏背部相对应的区域，上述设置可以有效解决注塑口设置于注塑模具上与显示屏下部相对的区域时，使得在注塑中树脂难以流入到显示膜片1的背部，以及注塑压力会挤压显示膜片1，进而导致显示膜片1变形的问题。
本实施方式还提供了一种显示屏的注塑方法，包括采用上述注塑模具注塑形成上述显示屏。所述采用上述注塑模具注塑形成上述显示屏包括：通过向注塑模具上的注塑口内注射液态组分，依次形成显示膜片1和外壳2。
本实施方式还提供了一种家用电器，该家用电器包括上述的显示屏。该显示屏的结合度好，不会出现气泡。

Claims (9)

  1. 一种显示屏，包括：
    显示膜片(1)，所述显示膜片(1)包括翻边结构(11)，所述翻边结构(11)沿所述显示膜片(1)的边缘设置；及
    外壳(2)，所述外壳(2)与所述显示膜片(1)注塑为一体结构，所述翻边结构(11)朝向所述外壳(2)的一端的端面整体嵌入所述外壳(2)内。
  2. 根据权利要求1所述的显示屏，其中，所述翻边结构(11)的高度L为3mm-4mm。
  3. 根据权利要求2所述的显示屏，其中，所述显示膜片(1)还包括膜片本体(12)，所述膜片本体(12)的边缘与所述翻边结构(11)相连，所述膜片本体(12)与所述外壳(2)注塑为一体结构，所述翻边结构(11)由所述膜片本体(12)沿朝向所述外壳(2)的方向弯折形成，且所述翻边结构(11)与所述外壳(2)注塑为一体结构。
  4. 根据权利要求3所述的显示屏，其中，所述翻边结构(11)与所述膜片本体(12)相垂直。
  5. 根据权利要求1-4中任一所述的显示屏，其中，所述外壳(2)背离所述显示膜片(1)的一侧设置有凹槽，所述凹槽沿所述外壳的边缘周向设置。
  6. 根据权利要求5所述的显示屏，其中，所述凹槽为连续设置的一体结构。
  7. 根据权利要求5所述的显示屏，其中，所述凹槽间断设置。
  8. 根据权利要求1-4中任一所述的显示屏，其中，所述外壳(2)背离所述显示膜片(1)的一侧的四角处均设置有凹槽。
  9. 一种家用电器，包括权利要求1-8中任一所述的显示屏。
PCT/CN2018/116647 2017-11-21 2018-11-21 显示屏、注塑模具及家用电器 Ceased WO2019101093A1 (zh)

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