Protective cover plate and smart watch

Abstract

The utility model discloses a protective cover plate which comprises a cover plate body which comprises a display area and a frame area, and the frame area surrounds the display area. And the boron carbide film layer is arranged on the back surface of the cover plate body, covers the frame area of the cover plate body and avoids the display area of the cover plate body. The protective cover plate can prevent the back surface of the protective cover plate from being scratched in an attaching area. The utility model further provides an intelligent watch which comprises the protective cover plate.

Description

Technical Field

[0001] The utility model relates to the field of displays, and particularly to a protection cover plate and a smart watch. Background Art

[0002] AMOLED has the characteristics of bright display effect, high contrast ratio and small screen, and is widely applied to smart watch projects. The functions of smart watches are becoming more and more comprehensive, integrating a series of functions such as touch control, display, and NFC payment. A series of functional components are integrated in the narrow space of the smart watch, so the sealing requirement for the smart watch is relatively high. Once water vapor enters the smart watch, a series of problems such as short circuit and corrosion of the internal functional components will occur, resulting in the scrapping of the smart watch.

[0003] Due to the relatively high sealing requirement of the smart watch, the requirement for the fit between the protection cover plate and the watch case is also relatively high. However, since the production of the protection cover plate, there are a series of operations such as fitting with AMOLED, assembly electrical testing, transportation and customer electrical testing, and assembly. During these operations, the light-shielding ink on the back of the protection cover plate will inevitably come into contact with external objects. Seriously, the light-shielding ink will be scratched by external objects, resulting in scratches, etc. This will cause the light-shielding ink to be uneven, and the sealing performance after fitting with the watch case will decrease. Summary of the Utility Model

[0004] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a protection cover plate that can prevent the area for fitting on its back from being scratched.

[0005] The utility model also provides a smart watch including the above protection cover plate.

[0006] The technical problems to be solved by the utility model are realized through the following technical solutions:

[0007] A protection cover plate includes:

[0008] A cover plate body includes a display area and a border area, and the border area surrounds the display area;

[0009] A boron carbide film layer is disposed on the back of the cover plate body and covers the border area of the cover plate body while avoiding the display area of the cover plate body.

[0010] Further, the boron carbide film layer includes a fitting area and a non-fitting area. The non-fitting area surrounds the display area, and the fitting area surrounds the non-fitting area.

[0011] Further, the width of the fitting area is 0.5 - 0.7 mm, and the width of the non-fitting area is 0.3 - 0.5 mm.

[0012] Further, the cover plate body is a glass cover plate, a plastic cover plate or a sapphire cover plate.

[0013] Further, the protective cover plate further includes an anti-reflection film layer, which is disposed on the front surface of the cover plate body and at least covers the display area of the cover plate body.

[0014] Further, the anti-reflection film layer is composed of multiple layers of high refractive index thin films and multiple layers of low refractive index thin films, and the multiple layers of high refractive index thin films and the multiple layers of low refractive index thin films are alternately stacked.

[0015] An intelligent watch includes a watch case, a watch dial and the above-mentioned protective cover plate. The watch case has an assembly groove. The boron carbide film layer of the protective cover plate is attached to the watch case, and the display area of the protective cover plate covers the assembly groove; the watch dial is disposed in the assembly groove and corresponds to the display area of the protective cover plate.

[0016] Further, the watch dial includes a display panel, and the display panel is disposed on the back surface of the protective cover plate.

[0017] Further, the display panel is an LCD panel or an OLED panel.

[0018] Further, the watch dial further includes a touch function layer, and the touch function layer is disposed between the display panel and the protective cover plate.

[0019] The utility model has the following beneficial effects: The protective cover plate of the utility model forms the boron carbide film layer on the border area of the back surface of the cover plate body to replace the light-shielding ink in the prior art, so as to play a role in shielding light for the border area of the cover plate body, and is fixedly attached to the watch case during the whole machine assembly; due to the high hardness of the boron carbide film layer, even in a series of actions such as the production of the protective cover plate, the attachment to the watch case, the assembly electrical test, the transportation and the customer electrical test, and the watch assembly, it hardly produces scratches when touching hard objects, can ensure the smoothness of its surface, and will not affect its sealing performance after being attached to the watch case. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the stacked structure of the protective cover plate provided by the utility model.

[0021] Figure 2 It is a schematic diagram of the back structure of the protective cover plate provided by the utility model.

[0022] Figure 3 It is a schematic diagram of the regional division of the boron carbide film layer in the protective cover plate provided by the utility model.

[0023] Figure 4 Schematic diagram of the stacking structure of another protective cover provided by the present utility model.

[0024] Figure 5 Schematic diagram of the stacking structure of the smart watch provided by the present utility model. Detailed implementation manners

[0025] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may also be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] As Figure 1 and 2 shown, a protective cover includes:

[0031] The cover plate body 110 includes a display area 111 and a border area 112, and the border area 112 surrounds the display area 111.

[0032] The boron carbide film layer 120 is disposed on the back surface of the cover plate body 110 and covers the border area 112 of the cover plate body 110 while avoiding the display area 111 of the cover plate body 110.

[0033] The boron carbide film layer 120 is a black shiny crystal film layer formed by boron carbide (chemical formula: B4C) through vacuum coating, chemical vapor deposition (CVD), sol-gel method, etc. Its Mohs hardness is about 9.3 to 9.5, second only to diamond and cubic boron nitride, and it is one of the three hardest known materials. Moreover, the boron carbide film layer 120 has stable chemical properties, does not react with most acid and alkali solutions, and is heat-resistant.

[0034] The protective cover plate of the present utility model forms the boron carbide film layer 120 on the border area 112 of the back surface of the cover plate body 110 to replace the light-shielding ink in the prior art, so as to play a role in shielding light for the border area 112 of the cover plate body 110, and is fixedly attached to the watch case during the assembly of the whole machine; due to the high hardness of the boron carbide film layer 120, even in a series of actions such as the production of the protective cover plate, fitting with the watch case, assembly electrical testing, transportation, customer electrical testing, and watch assembly, it hardly produces scratches when touching hard objects, and can ensure the smoothness of its surface without affecting the sealing performance after it is attached to the watch case.

[0035] As Figure 3 shown, the boron carbide film layer 120 includes a fitting area 122 and a non-fitting area 121. The non-fitting area 121 surrounds the display area 111, and the fitting area 122 surrounds the non-fitting area 121.

[0036] Among them, the fitting area 122 is the area where a pressure-sensitive adhesive is provided on the boron carbide film layer 120 to be fixedly attached to the watch case, and the non-fitting area 121 is a tolerance area reserved to meet the fitting tolerance and assembly tolerance.

[0037] Preferably, the width of the fitting area 122 is 0.5 - 0.7 mm, and the width of the non-fitting area 121 is 0.3 - 0.5 mm to meet the fitting tolerance and assembly tolerance.

[0038] In this embodiment, the cover plate body 110 may be, but is not limited to, a glass cover plate, a plastic cover plate, or a sapphire cover plate.

[0039] Embodiment 2

[0040] As an optimized solution for Embodiment 1, in this embodiment, as Figure 4 shown, the protective cover plate further includes an antireflection film layer 130, and the antireflection film layer 130 is disposed on the front surface of the cover plate body 110 and at least covers the display area 111 of the cover plate body 110.

[0041] The protective cover plate of the present utility model further forms the antireflection film layer 130 on the front surface of the cover plate body 110 to reduce the surface reflectivity of the cover plate, improve the clarity and visibility of the display area 111, and prevent the user from being unable to clearly see the watch dial due to too strong reflected light in the display area 111.

[0042] Preferably, the antireflection film layer 130 simultaneously covers the display area 111 and the border area 112 of the cover plate body 110.

[0043] The antireflection film layer 130 is composed of multiple layers of high refractive index thin films 131 and multiple layers of low refractive index thin films 132, and the multiple layers of high refractive index thin films 131 and the multiple layers of low refractive index thin films 132 are alternately stacked.

[0044] The total number of thin films of the high refractive index thin films 131 and the low refractive index thin films 132 in the antireflection film layer 130 is generally 4 - 10 layers, depending on the specific material refractive index.

[0045] In this embodiment, the high refractive index thin film 131 can be but is not limited to lanthanum titanate thin film, aluminum oxide thin film, zinc sulfide thin film, yttrium oxide thin film or zirconia thin film, and the low refractive index thin film 132 can be but is not limited to silicon dioxide thin film.

[0046] Embodiment 3

[0047] As Figure 5 shown, a smart watch includes a watch case 200, a watch dial 300, and the protective cover plate 100 described in Embodiment 1 or Embodiment 2. The watch case 200 has an assembly groove, the boron carbide film layer 120 of the protective cover plate 100 is attached to the watch case 200, and the display area 111 of the protective cover plate 100 covers the assembly groove; the watch dial 300 is disposed in the assembly groove and corresponds to the display area 111 of the protective cover plate 100.

[0048] The smart watch of the present utility model splashes a boron carbide film layer 120 on the border area of the protection cover plate 100, which improves the hardness of the protection cover plate 100 on its border area 112. In a series of actions such as the production of the protection cover plate 100, fitting with the watch case, assembling and electrically testing, transportation, customer electrical testing, and watch assembly, scratches are not easily generated on the boron carbide film layer 120 by external objects, and even no scratches are generated. Therefore, even if the boron carbide film layer 120 touches an external object, it can ensure the smoothness of its surface and will not affect the sealing performance after it is fitted with the watch case 200.

[0049] The watch dial 300 includes a display panel, and the display panel is arranged on the back surface of the protection cover plate 100.

[0050] In this embodiment, the display panel is an LCD panel or an OLED panel.

[0051] The watch dial 300 further includes a touch function layer (not shown in the figure), and the touch function layer is arranged between the display panel and the protection cover plate 100.

[0052] In this embodiment, the touch function layer can be but is not limited to an OGS function layer, a GG function layer, a GF function layer, or an FF function layer.

[0053] Preferably, the display panel is attached to the surface of the touch function layer facing away from the protection cover plate 100 through OCA optical glue; if the touch function layer is an OGS function layer, the touch function layer is directly made on the back surface of the protection cover plate 100, and if the touch function layer is a GG function layer, a GF function layer, an FF function layer, etc., the touch function layer is attached to the back surface of the protection cover plate 100 through OCA optical glue.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present utility model and are not intended to limit them. Although the embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the embodiments of the present utility model can still be modified or equivalently replaced, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A protective cover plate, characterized in that, Comprising: A cover plate body, including a display area and a border area, the border area surrounding the display area; A boron carbide film layer, disposed on the back surface of the cover plate body and covering the border area of the cover plate body while avoiding the display area of the cover plate body.

2. The protective cover plate according to claim 1, wherein, The boron carbide film layer includes a bonding area and a non-bonding area, the non-bonding area surrounding the display area, and the bonding area surrounding the non-bonding area.

3. The protective cover according to claim 2, characterized in that, The width of the bonding area is 0.5 - 0.7 mm, and the width of the non-bonding area is 0.3 - 0.5 mm.

4. The protective cover plate according to claim 1, characterized in that, The cover plate body is a glass cover plate, a plastic cover plate, or a sapphire cover plate.

5. The protective cover plate according to claim 1, characterized in that The protective cover plate further includes an antireflection film layer, the antireflection film layer disposed on the front surface of the cover plate body and covering at least the display area of the cover plate body.

6. The protective cover plate according to claim 5, characterized in that, The antireflection film layer is composed of multiple layers of high refractive index thin films and multiple layers of low refractive index thin films, and the multiple layers of high refractive index thin films and the multiple layers of low refractive index thin films are alternately stacked.

7. An intelligent watch, characterized in that, Including a watch case, a watch dial, and the protective cover plate according to claim 1, the watch case having an assembly groove, the boron carbide film layer of the protective cover plate being bonded to the watch case, and the display area of the protective cover plate covering the assembly groove; the watch dial is disposed in the assembly groove and corresponds to the display area of the protective cover plate.

8. The smart watch according to claim 7, wherein, The watch dial includes a display panel, the display panel being disposed on the back surface of the protective cover plate.

9. The smart watch according to claim 8, characterized in that The display panel is an LCD panel or an OLED panel.

10. The smart watch according to claim 8, characterized in that, The watch dial further includes a touch function layer, the touch function layer being disposed between the display panel and the protective cover plate.

Images