Silver gray glass cover plate

Abstract

The utility model discloses a silver gray glass cover plate, which comprises a glass substrate provided with an outer surface and an inner surface which are oppositely arranged along the thickness direction of the glass substrate; the silver metal film layer is arranged on the outer surface of the glass substrate; the equal filtering film layer is arranged on the surface of one side, far away from the glass substrate, of the silver metal film layer; wherein the equal filtering film layer has the same transmittance for red light, blue light and green light. The silver gray glass cover plate has a silver gray appearance, and is easy to be secondarily processed into a specific shape.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cover plate especially, relate to a silver gray glass cover plate. BACKGROUND

[0002] With the continuous improvement of people's living standards, mobile phones, tablet computers, cameras, notebook computers and other electronic products have gradually popularized. Cover plate is the most direct way to protect electronic products, and is also an important factor affecting its heat dissipation effect, weight, and aesthetic degree. Therefore, the material for making the cover plate of the electronic product requires high strength, good heat and wear resistance, size stability, good appearance and other characteristics. At present, the cover plate of the electronic product is mostly made of engineering plastics, metal, glass and other materials, which still has the disadvantages of low hardness, easy scratching, deformation, discoloration, environmental pollution, and poor heat resistance. In recent years, ceramic cover plates with beautiful appearance, jade texture, wear resistance, and no discoloration have gradually gained the favor of consumers.

[0003] The application number CN201820745949.8 discloses a durable silver gray ceramic cover plate, which comprises a ceramic substrate and a color film layer plated on the ceramic substrate. The color film layer comprises a plurality of silicon oxide layers and a plurality of silicon layers which are alternately stacked. The surface closest to the ceramic substrate is a silicon oxide layer, and the outermost layer farthest from the ceramic substrate is also a silicon oxide layer. The silver gray ceramic cover plate has an attractive appearance. The color film layer comprises a plurality of silicon oxide layers and a plurality of silicon layers which are alternately stacked. The junction between the color film layer and the ceramic substrate is a silicon oxide layer, which is conducive to the formation of chemical bonds between the color film layer and the ceramic substrate, improves the adhesion of the color film layer, and enhances the durability of the silver gray ceramic cover plate. The color film layer of the silver gray ceramic cover plate only comprises silicon layers and silicon oxide layers, and only a silicon target is needed in the preparation, which can greatly reduce the cost and make the silver gray ceramic cover plate inexpensive.

[0004] However, the above-mentioned silver gray ceramic cover plate uses the ceramic substrate as the base, and the ceramic substrate is difficult to be processed secondarily, such as being processed into a specific shape by CNC process or wet etching, which limits the application scenarios and application range. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned problems of the prior art, the utility model provides a silver gray glass cover plate which has a silver gray appearance and can be easily processed secondarily into a specific shape.

[0006] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0007] A silver gray glass cover plate comprises:

[0008] A glass substrate has an outer surface and an inner surface arranged oppositely along the thickness direction of the glass substrate.

[0009] a silver metal film layer, disposed on the outer surface of the glass substrate;

[0010] A uniform filter film layer is provided on a surface of the silver metal film layer away from the glass substrate;

[0011] The uniform filter film layer has the same transmittance for red light, blue light and green light.

[0012] Furthermore, the uniform filter film layer includes a plurality of high refractive index film layers and a plurality of low refractive index film layers alternately stacked.

[0013] Furthermore, the high refractive index film layer is a titanium dioxide film layer, and the low refractive index film layer is a niobium pentoxide film layer.

[0014] Furthermore, the high refractive index film layer and the low refractive index film layer have the same number of layers.

[0015] Furthermore, the thicknesses of the high refractive index film layers are different from each other, and the thicknesses of the low refractive index film layers are different from each other.

[0016] Furthermore, the uniform filter layer includes the following layers sequentially arranged on the outer surface of the glass substrate:

[0017] The first titanium dioxide film layer has a thickness of 62.5 nm;

[0018] The first niobium pentoxide film layer has a thickness of 74.4 nm;

[0019] The second titanium dioxide film layer has a thickness of 48.4 nm;

[0020] The second niobium pentoxide film layer has a thickness of 57.9 nm;

[0021] The third titanium dioxide film layer has a thickness of 43.2 nm;

[0022] The third niobium pentoxide film layer has a thickness of 51.4 nm.

[0023] Furthermore, the silver metal film layer is a metal titanium film layer.

[0024] Furthermore, the thickness of the metal titanium film layer is 10-20 nm.

[0025] Furthermore, the uniform filter film layer includes a titanium dioxide film layer, and the titanium dioxide film layer is located on a side of the uniform filter film layer facing the silver metal film layer.

[0026] Furthermore, the glass substrate is tempered glass.

[0027] The utility model has the following beneficial effects: The silver gray glass cover plate of the utility model provides silver metal luster through the silver metal film layer, and the silver metal film layer is made of silver gray appearance through equal filtering of red light, blue light and green light in incident white light through the equal light filtering film layer, and the silver metal film layer is made of silver gray appearance through the whole darkening and lightening of the silver metal luster. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The utility model provides a silver gray glass cover plate's stacking structure schematic diagram. DETAILED DESCRIPTION

[0029] The utility model will be explained in detail below in combination with the drawings and examples, the example of the example is shown in the drawings, wherein the same or similar label represents the same or similar element or element with the same or similar function throughout. The example described below by referring to the drawings is exemplary, and is intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0030] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as the limitation of the utility model.

[0031] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0032] In the utility model, unless another definite provision and limitation, the term "installation", "link", "connection", "fix", "arrangement" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through intermediate medium indirectly connect, also can be two element internal communication or two element mutual action relationship.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0033] Embodiment one

[0034] As Figure 1 Indicated, a silver gray glass cover plate includes:

[0035] Glass substrate 1 has oppositely arranged outer surface and inner surface along the thickness direction of itself;

[0036] Silver metal film layer 2 is arranged on the outer surface of the glass substrate 1;

[0037] Equal light filtering film layer 3 is arranged on the side surface of the silver metal film layer 2 away from the glass substrate 1;

[0038] Wherein, the equal light filtering film layer 3 is equal to the transmittance of red light, blue light and green light.

[0039] The silver gray glass cover plate of the utility model provides silver metal luster through the silver metal film layer 2, and equal filters red light, blue light and green light in incident white light through the equal light filtering film layer 3, makes the silver metal luster of the silver metal film layer 2 overall dark and light, so that it presents silver gray appearance;And the silver gray glass cover plate of the utility model takes the glass substrate 1 as the base, and the glass substrate 1 is easy to be processed into a specific shape by CNC process or wet etching, and has multiple application scenarios and wide application range.

[0040] The equal light filtering film layer 3 includes a plurality of high refractive index film layers 31 and a plurality of low refractive index film layers 32 alternately stacked.

[0041] The equal light filtering film layer 3 is based on the light interference principle, there is a refractive index difference between the high refractive index film layer 31 and the low refractive index film layer 32, when the incident white light passes through the junction between the adjacent high refractive index film layer 31 and the low refractive index film layer 32, reflection is generated due to the medium refractive index mutation, the thickness of each layer of the high refractive index film layer 31 and each layer of the low refractive index film layer 32 is reasonably designed, the optical path difference between the adjacent two reflected lights satisfies the odd multiple of the half wavelength of one of red light, blue light and green light, that is, the one of red light, blue light and green light can be mutually cancelled, so that the transmittance of the one of red light, blue light and green light is reduced, the film layer combination composed of the high refractive index film layer 31 and the low refractive index film layer 32 is designed for the red light, the blue light and the green light respectively, so that the transmittance of the red light, the blue light and the green light can be reduced at the same time, and the transmittance of the red light, the blue light and the green light is the same.

[0042] Preferably, the high refractive index film layer 31 is a titanium dioxide film layer, and the low refractive index film layer 32 is a diniobium pentoxide film layer. Of course, the specific materials of the high refractive index film layer 31 and the low refractive index film layer 32 are not limited to the above description, and those skilled in the art can select other transparent medium materials as alternatives according to product cost requirements and application scenarios.

[0043] In the embodiment, the number of layers between the high refractive index film layer 31 and the low refractive index film layer 32 is the same, the thickness of each layer of the high refractive index film layer 31 is different, and the thickness of each layer of the low refractive index film layer 32 is different, so as to meet the optical requirements of reducing the transmittance of red light, blue light and green light at the same time, and making the transmittance of red light, blue light and green light the same.

[0044] Preferably, the silver metal film layer 2 is a metal titanium film layer, the thickness of the metal titanium film layer is 10-20nm, the equal light filtering film layer 3 includes a titanium dioxide film layer, and the titanium dioxide film layer is located on the side of the equal light filtering film layer 3 facing the silver metal film layer 2.

[0045] The silver-gray glass cover plate adopts the metal titanium film layer as the silver metal film layer 2 to provide silver metal luster, and adopts the titanium dioxide film layer as the high refractive index film layer 31 in the equal light filtering film layer 3, and simultaneously uses the titanium dioxide film layer as the side of the equal light filtering film layer 3 facing the silver metal film layer 2, so that the equal light filtering film layer 3 uses the titanium dioxide film layer to contact the metal titanium film layer, and because the titanium dioxide film layer and the metal titanium film layer have the same metal element, the binding force between the titanium dioxide film layer and the metal titanium film layer is high, which is beneficial to improve the stability of the combination between the silver metal film layer 2 and the equal light filtering film layer 3.

[0046] Specifically, the equal light filtering film layer 3 includes the following layers arranged in sequence on the outer surface of the glass substrate 1:

[0047] a first titanium dioxide film layer 311 with a thickness of 62.5 nm;

[0048] a first niobium pentoxide film layer 321 with a thickness of 74.4 nm;

[0049] a second titanium dioxide film layer 312 with a thickness of 48.4 nm;

[0050] a second niobium pentoxide film layer 322 with a thickness of 57.9 nm;

[0051] a third titanium dioxide film layer 313 with a thickness of 43.2 nm;

[0052] a third niobium pentoxide film layer 323 with a thickness of 51.4 nm.

[0053] Of course, the thickness of the first titanium dioxide film layer 311, the first niobium pentoxide film layer 321, the second titanium dioxide film layer 312, the second niobium pentoxide film layer 322, the third titanium dioxide film layer 313 and the third niobium pentoxide film layer 323 can be slightly adjusted based on the above values, and is not completely limited to the above values.

[0054] Preferably, the glass substrate 1 is tempered glass with a thickness of 1-3 mm to improve the impact resistance of the silver-gray glass cover plate.

[0055] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them. Although the embodiments of the present application have been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present application can still be modified or replaced by equivalents, and these modifications or replacements should not make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A silver gray glass cover plate characterized in that, The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

2. The silvered glass cover sheet according to claim 1, characterized in that The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

3. The silvered glass cover sheet according to claim 2, characterized in that The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

4. The silvered glass cover sheet according to claim 3, characterized in that The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

5. The silver colored glass cover sheet according to claim 1, wherein, The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

6. The silvered glass cover sheet according to claim 3, wherein The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

7. The silvered glass cover sheet according to claim 1, wherein The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

8. The silvered glass cover sheet according to claim 7, characterized in that The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

9. The silvered glass cover sheet according to claim 7, wherein The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer.

10. The silvered glass cover sheet according to claim 1, wherein The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an equal light filtering film layer. The application relates to a glass substrate with a silver metal film layer and an

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