Golden yellow rear cover plate and mobile phone equipment

Abstract

The utility model discloses a golden yellow rear cover plate, which comprises a glass base layer, the golden yellow film layer is arranged on the surface of one side of the glass base layer; the shading film layer is arranged on the surface of one side, back to the glass base layer, of the golden yellow film layer. The golden yellow rear cover plate has a golden yellow appearance. The utility model further discloses a mobile phone device which comprises the golden yellow rear cover plate.

Description

Technical Field

[0001] The utility model relates to the field of mobile phone accessories, in particular to a golden back cover plate and a mobile phone device. Background Art

[0002] With the development of electronic technology, mobile phone devices have become more and more intelligent, making mobile phone devices an essential tool in people's daily life, work and study.

[0003] At the same time, people's requirements for the visual and tactile sensory experience of mobile phone devices are also getting higher and higher. At present, the colors of the back cover plates of mobile phone devices on the market are too single, which cannot meet people's needs for the personalization of mobile phone devices and the pursuit of the fashionable and beautiful appearance of mobile phone devices. Content of the Utility Model

[0004] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a golden back cover plate with a golden appearance.

[0005] The utility model also provides a mobile phone device, including the above-mentioned golden back cover plate.

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

[0007] A golden back cover plate includes:

[0008] A glass base layer;

[0009] A golden film layer disposed on the surface of one side of the glass base layer;

[0010] A light-shielding film layer disposed on the surface of the golden film layer on the side facing away from the glass base layer.

[0011] Further, the golden film layer is a nickel-titanium alloy film layer with a thickness between 200 and 300 nm.

[0012] Further, the light-shielding film layer is a titanium carbide film layer with a thickness between 1000 and 1200 nm.

[0013] Further, the golden film layer is a semi-permeable film layer, and a white luminous film layer is further disposed between the golden film layer and the light-shielding film layer.

[0014] Further, the semi-permeable golden film layer is a nickel-titanium alloy film layer with a thickness between 50 and 80 nm.

[0015] Further, the white luminous film layer is a luminous ink layer or a luminous paint layer with a thickness of 70 to 110 nm.

[0016] Further, an antireflection film layer is also provided between the glass base layer and the golden film layer.

[0017] Further, the antireflection film layer is a magnesium fluoride film layer with a thickness of 50 - 100 nm.

[0018] Further, the glass base layer is a glass base layer with a thickness of 0.5 - 1.2 mm.

[0019] Further, the glass base layer is tempered glass.

[0020] A mobile phone device includes the above - mentioned golden back cover.

[0021] The utility model has the following beneficial effects: The golden back cover of the utility model uses glass as the base layer, and the golden film layer is arranged on the inner surface of the glass base layer to form a back cover with a golden appearance, so as to meet the personalized needs of users for the appearance of mobile phone devices; at the same time, the light - shielding film layer is arranged on the inner surface of the golden film layer to prevent environmental light from passing through the golden film layer to illuminate the inside of the mobile phone device, prevent users from seeing the inside of the mobile phone device through the golden film layer, and improve the stability of the golden appearance. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the stacked structure of the golden back cover provided by the utility model.

[0023] Figure 2 It is a schematic diagram of the stacked structure of another golden back cover provided by the utility model.

[0024] Figure 3 It is a schematic diagram of the stacked structure of yet another golden back cover provided by the utility model. Detailed Description of the Embodiment

[0025] The following combines the drawings and embodiments to describe the utility model in detail. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model and should not be construed as a limitation of the 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. is based on the orientation or positional relationship shown in the drawings. It is 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 therefore 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 cannot be understood as indicating or implying relative importance or implicitly specifying the quantity 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, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", "set", 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 communication inside 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] A golden back cover, comprising:

[0031] A glass base layer 1;

[0032] A golden film layer 2, provided on the surface of one side of the glass base layer 1;

[0033] A light-shielding film layer 3, provided on the surface of the golden film layer 2 on the side facing away from the glass base layer 1.

[0034] The golden back cover of the present utility model uses glass as the base layer, and the golden film layer 2 is provided on the inner surface of the glass base layer 1 to form a back cover with a golden appearance to meet the personalized needs of users for the appearance of mobile devices; at the same time, the light-shielding film layer 3 is provided on the inner surface of the golden film layer 2 to prevent environmental light from passing through the golden film layer 2 to illuminate the inside of the mobile device, prevent users from seeing the inside of the mobile device through the golden film layer 2, and improve the stability of the golden appearance.

[0035] The golden film layer 2 is preferably a nickel-titanium alloy film layer with a thickness between 200 and 300 nm.

[0036] Nickel-titanium alloy is a good coloring material and is golden in color. It can be coated on the surface of the glass substrate 1 by vacuum evaporation. First, the plating material (nickel-chromium alloy wire or a double-strand wire of nickel wire and titanium wire) is placed under high vacuum conditions and heated by passing an electric current through a tungsten wire coil, causing the plating material to evaporate and deposit on the surface of the glass substrate 1 and condense into a film. Then, the glass substrate 1 coated with the nickel-titanium alloy film layer is sent into an oven for heat treatment to finally obtain the golden film layer 2. In addition to having good coloring effects, nickel-titanium alloy also has excellent characteristics such as good plasticity, corrosion resistance, abrasion resistance, high damping, and superelasticity, which have a certain effect on improving the corrosion resistance, abrasion resistance, and elastic buffering performance of the back cover.

[0037] The light-shielding film layer 3 is preferably a titanium carbide film layer with a thickness between 1000 and 1200 nm.

[0038] Titanium carbide is a semiconductor material with a high absorption rate for visible light and can achieve a light-shielding effect by absorbing visible light. It is generally black. It is deposited on the surface of the golden film layer 2 through a vacuum coating process to form a uniform and dense film layer. At the same time, titanium carbide, as a hard material, has excellent physical and chemical properties such as high hardness, high abrasion resistance, and high corrosion resistance. These characteristics enable it to increase the hardness of the inner surface of the back cover to protect the golden film layer 2, thereby preventing the golden film layer 2 from being scratched or falling off by the internal components of the mobile phone device when assembling the back cover of the mobile phone.

[0039] In this embodiment, the thickness of the glass substrate 1 is 0.5 - 1.2 mm, and it is preferably tempered glass.

[0040] Embodiment Two

[0041] As an optimized solution of Embodiment One, in this embodiment, the golden film layer 2 is a semi-permeable film layer, and a white luminous film layer 4 is further provided between the golden film layer 2 and the light-shielding film layer 3.

[0042] The golden rear cover of the present utility model sets the golden film layer 2 as a semi-permeable film layer, and arranges the white luminous film layer 4 between the golden film layer 2 and the light-shielding film layer 3. During the day, the golden film layer 2 presents a golden appearance under the irradiation of ambient light, and the ambient light passing through the golden film layer 2 can excite the white luminous film layer 4 to jump to a high-energy state. At night, when the white luminous film layer 4 returns from the high-energy state to the normal state, it can release white luminous light, and the golden film layer 2 presents a golden appearance under the irradiation of the white luminous light, enabling users to see the golden appearance of the rear cover whether it is day or night.

[0043] Same as Embodiment 1, the semi-permeable golden film layer 2 is also a nickel-titanium alloy film layer, but its thickness is between 50-80 nm, and by reducing the thickness of the nickel-titanium alloy film layer, the light transmittance of the golden film layer 2 is between 50%-60%.

[0044] The white luminous film layer 4 is preferably a luminous ink layer or a luminous paint layer, and its thickness is 70-110 nm.

[0045] Luminous ink or luminous paint is a kind of white luminous material formed by mixing rare-earth luminescent materials (luminous powder) in an ink substrate or a polymer substrate, which has good stability and luminosity, can absorb and store light energy during the day, and release the stored light energy at night. Rare-earth luminescent materials are luminescent materials generated by the transition of 4f electrons of rare-earth elements (mainly lanthanide elements and scandium, yttrium) between different energy levels. Such materials have many unique advantages, such as strong absorption ability, high conversion efficiency, and can emit spectra from ultraviolet light to infrared light, especially having a strong emission ability in the visible light region. By reasonably configuring the ratio of RGB three primary colors or blue-yellow light in the luminous ink or luminous paint, white light can be obtained. The film-forming method of the luminous ink layer or the luminous paint layer is generally coating film-forming + baking curing.

[0046] Embodiment 3

[0047] As an optimized solution of Embodiment 1 or Embodiment 2, in this embodiment, an anti-reflection film layer 5 is further provided between the glass substrate 1 and the golden film layer 2.

[0048] The golden rear cover of the present utility model further provides an anti-reflection film layer 5 between the glass substrate 1 and the golden film layer 2, and uses the anti-reflection film layer 5 to reduce the interface reflectivity between the glass substrate 1 and the golden film layer 2, so as to increase the irradiation amount of ambient light on the golden film layer 2 and improve the light utilization rate.

[0049] The anti-reflection film layer 5 is preferably a magnesium fluoride film layer, and its thickness is 50-100 nm.

[0050] Magnesium fluoride has a relatively low refractive index (about 1.38), and this property makes it particularly suitable for fabricating the antireflection film layer 5 to effectively reduce the reflection of ambient light. It can adopt either a single-film layer structure or a multi-film layer structure. In terms of technology, the magnesium fluoride film layer can be prepared by various methods, such as vacuum evaporation, sputtering deposition, pulsed laser deposition, etc.

[0051] Embodiment 4

[0052] A mobile phone device includes the golden back cover as described in Embodiment 1, Embodiment 2 or Embodiment 3.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention rather than to limit them. Although the embodiments of the present invention 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 invention can still be modified or equivalently replaced, and these modifications or equivalent replacements do not enable the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A golden rear cover plate, characterized in that, Comprising: A glass base layer; A golden film layer disposed on the surface of one side of the glass base layer; A light-shielding film layer disposed on the surface of the golden film layer on the side facing away from the glass base layer.

2. The golden back cover according to claim 1, characterized in that, The golden film layer is a nickel-titanium alloy film layer, and its thickness is between 200 and 300 nm.

3. The golden back cover according to claim 1, characterized in that, The light-shielding film layer is a titanium carbide film layer, and its thickness is between 1000 and 1200 nm.

4. The golden rear cover plate according to claim 1, wherein The golden film layer is a semi-permeable film layer, and a white luminous film layer is further provided between the golden film layer and the light-shielding film layer.

5. The golden back cover according to claim 4, characterized in that, The semi-permeable golden film layer is a nickel-titanium alloy film layer, and its thickness is between 50 and 80 nm.

6. The gold-colored rear cover plate according to claim 4, wherein The white luminous film layer is a luminous ink layer or a luminous coating layer, and its thickness is 70-110 nm.

7. The golden back cover according to claim 1, characterized in that, An antireflection film layer is further provided between the glass base layer and the golden film layer.

8. The golden back cover according to claim 7, characterized in that, The antireflection film layer is a magnesium fluoride film layer, and its thickness is 50-100 nm.

9. The gold-colored rear cover according to claim 1, characterized in that, The glass base layer is tempered glass.

10. A mobile phone device, characterized in that, Including the golden rear cover plate described in claim 1.

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