Coated cover plate capable of reducing reflection of specific wavelength and handheld communication equipment

Abstract

The utility model discloses a coated cover plate for reducing reflection of specific wavelength and a handheld communication device, the coated cover plate comprises a glass substrate, and a magnesium fluoride layer, a titanium dioxide layer, a niobium pentoxide layer, a silicon nitride layer and a titanium carbide layer which are sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the magnesium fluoride layer is 20-50nm, the thickness of the titanium dioxide layer is 20-50nm, and the thickness of the niobium pentoxide layer is 20-50nm. The thickness of the titanium dioxide layer ranges from 20 nm to 50 nm, the thickness of the niobium pentoxide layer ranges from 20 nm to 50 nm, the thickness of the silicon nitride layer ranges from 50 nm to 80 nm, and the thickness of the titanium carbide layer ranges from 100 nm to 150 nm. A series of optical interference pairs are formed by accurately controlling the thickness and the refractive index of each layer. The pairing layers interact when light passes through, so that light with specific wavelength generates constructive or destructive interference among the film layers, reflected light is effectively reduced, light transmission is enhanced, the reflectivity is further reduced, the requirements of special operation environments and markets are met, and the competitiveness of products is improved. The composite coating design not only improves the optical performance of the glass substrate, but also remarkably prolongs the service life of the glass substrate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of liquid crystal display technical field, more specifically, it relates to a kind of coating cover plate and handheld communication equipment for reducing the reflection of specific wavelength. BACKGROUND

[0002] With the rapid development of electronic display technology, the optical performance and physical protection requirements of glass substrate are increasingly improved. Although the traditional glass substrate has basic transparency and mechanical strength, under the demand of high brightness and high contrast display, its reflectivity is high, easy to scratch and other problems are increasingly prominent, and in special operating environment, glass substrate is required to have the ability to reduce the reflection of specific wavelength, and the traditional glass substrate cannot meet the above requirements, so it is urgent to develop a product to meet the existing market demand. SUMMARY

[0003] The technical problem to be solved by the utility model is how to make the glass substrate have the ability to reduce the reflection of specific wavelength, and then reduce the reflectivity, to meet the special operating environment, meet the market demand and improve the competitiveness of products.

[0004] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0005] To solve the above technical problem, the utility model provides a coating cover plate for reducing the reflection of specific wavelength, which comprises a glass substrate and a magnesium fluoride layer, a titanium dioxide layer, a niobium pentoxide layer, a silicon nitride layer and a titanium carbide layer sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the magnesium fluoride layer is 20-50nm, the thickness of the titanium dioxide layer is 20-50nm, the thickness of the niobium pentoxide layer is 20-50nm, the thickness of the silicon nitride layer is 50-80nm, and the thickness of the titanium carbide layer is 100-150nm.

[0006] The utility model provides a handheld communication equipment, which comprises the coating cover plate for reducing the reflection of specific wavelength.

[0007] As a preferred embodiment of the handheld communication equipment provided by the utility model, a display module is arranged below the glass substrate, and a backlight module is arranged below the display module.

[0008] As a preferred embodiment of the handheld communication device provided by the utility model, the backlight module comprises a lower frame, a reflecting sheet, a light guide plate and an optical film group, the lower frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, the reflecting sheet, the light guide plate and the optical film group are sequentially stacked above the bottom plate from bottom to top, the FPC is arranged on the side wall, the LED lamp is fixed on the FPC, and the high-transparency glass is arranged between the light guide plate and the reflecting sheet.

[0009] As a preferred embodiment of the handheld communication device provided by the utility model, the high-transparency glass is smooth glass.

[0010] As a preferred embodiment of the handheld communication device provided by the utility model, the high-transparency glass is in interference fit with the FPC and the side wall.

[0011] As a preferred embodiment of the handheld communication device provided by the utility model, the edge of the upper surface of the high-transparency glass is provided with a protrusion, and the light guide plate is arranged on the upper surface of the protrusion.

[0012] As a preferred embodiment of the handheld communication device provided by the utility model, the cross section of the protrusion is annular.

[0013] As a preferred embodiment of the handheld communication device provided by the utility model, the protrusion is located in a non-visible area and surrounds a visible area.

[0014] As a preferred embodiment of the handheld communication device provided by the utility model, the upper surface of the protrusion is provided with a rubber pad.

[0015] The utility model has the following beneficial effects:

[0016] The glass substrate, as the base, provides basic mechanical support and optical transparency. The magnesium fluoride layer, as the first anti-reflective layer, with its low refractive index, helps reduce reflection between the air and the coating layer. The titanium dioxide layer matches the magnesium fluoride layer, forming the first optical interference pair. The titanium dioxide layer, as a high-refractive-index material, works with the magnesium fluoride layer to reduce reflection at specific wavelengths through interference effects. The niobium pentoxide layer further enhances the high refractive index of the film. The silicon nitride layer, with its high hardness, high wear resistance, and good chemical stability, enhances the overall hardness and durability of the coating layer. The titanium carbide layer, as a hard layer, further protects the coating layer from scratches and wear. The core principle of this patent lies in combining the optical interference effect of multilayer thin films with the physical properties of the materials themselves to achieve a comprehensive improvement in the performance of the glass substrate. Specifically, by precisely controlling the thickness and refractive index of each layer, including the magnesium fluoride layer, titanium dioxide layer, niobium pentoxide layer, silicon nitride layer, and titanium carbide layer, a series of optical interference pairs are formed. These paired layers interact as light passes through, causing constructive or destructive interference of specific wavelengths of light between the layers. This effectively reduces reflected light, enhances light transmittance, and consequently lowers reflectivity, meeting the demands of specialized operating environments, satisfying market needs, and improving product competitiveness. Simultaneously, the introduction of high-hardness materials such as silicon nitride and titanium carbide not only improves the overall hardness and wear resistance of the coating layer but also enhances its chemical stability, effectively resisting environmental corrosion. This composite coating design not only improves the optical performance of the glass substrate but also significantly extends its service life, meeting the dual high standards of performance and appearance required by high-end electronic display products. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a coated cover plate that reduces reflection at a specific wavelength, as provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of a handheld communication device provided by this utility model.

[0020] Figure 3 for Figure 2 A schematic diagram of the backlight module.

[0021] Figure 4 for Figure 3 A schematic diagram of the structure of medium-high transparency glass.

[0022] Figure 5 forFigure 4 Hidden rubber pad plan view.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Glass substrate 1; magnesium fluoride layer 11; titanium dioxide layer 12; niobium pentoxide layer 13; silicon nitride layer 14; titanium carbide layer 15;

[0025] Display module 100; backlight module 200;

[0026] Lower frame 2; reflective sheet 3; light guide plate 4; optical film group 5; bottom plate 21; side wall 22; FPC 6; LED lamp 7; high-transparency glass 8;

[0027] Protrusion 81; rubber pad 82. DETAILED DESCRIPTION

[0028] In order to enable the personnel in the technical field to better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] 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 the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] The utility model provides a kind of coating cover plate for reducing reflection of specific wavelength, it includes glass substrate and by from top to bottom sequentially superimposed and arranged on the magnesium fluoride layer of glass substrate upper surface, titanium dioxide layer, di-niobium pentoxide layer, silicon nitride layer and titanium carbide layer, the thickness of magnesium fluoride layer is 20nm-50nm, the thickness of titanium dioxide layer is 20nm-50nm, the thickness of di-niobium pentoxide layer is 20nm-50nm, the thickness of silicon nitride layer is 50nm-80nm, the thickness of titanium carbide layer is 100nm-150nm.

[0032] Glass substrate provides basic mechanical support and optical transparency as substrate;Magnesium fluoride layer as the first layer of anti-reflection layer, its low refractive index helps to reduce the reflection between air and coating layer;Titanium dioxide layer matches with magnesium fluoride layer, forms the first optical interference pair, titanium dioxide layer as high refractive index material, works together with magnesium fluoride layer, reduces the reflection of specific wavelength by interference effect;Di-niobium pentoxide layer can further improve the high refractive index of film layer;Silicon nitride layer has high hardness, high wear resistance and good chemical stability, can enhance the overall hardness and durability of coating layer;Titanium carbide layer as hard layer, it can further protect coating layer from scratching and wear and tear.The core principle of the patent is to combine the optical interference effect of multilayer film with the physical properties of the material itself, to realize the comprehensive improvement of the performance of glass substrate.Specifically, by accurately controlling the thickness and refractive index of each layer such as magnesium fluoride layer, titanium dioxide layer, di-niobium pentoxide layer, silicon nitride layer and titanium carbide layer, a series of optical interference pairs are formed.These paired layers interact when light passes through, causing constructive or destructive interference of specific wavelength light between the film layers, thereby effectively reducing the reflected light, enhancing the light transmission, and reducing the reflectivity to meet the needs of special operating environment, meet the market demand, improve the competitiveness of products.At the same time, the introduction of high-hardness materials such as silicon nitride and titanium carbide not only improves the overall hardness and wear resistance of the coating layer, but also enhances its chemical stability, effectively resisting the erosion of external environment.This composite coating design not only improves the optical performance of glass substrate, but also significantly prolongs its service life, meets the dual high-standard requirements of high-end electronic display products on performance and appearance.

[0033] In order to enable the personnel in the technical field to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings. The utility model will be described in detail below in conjunction with the drawings and embodiments, and the examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0034] Embodiment 1, please refer toFigure 1 The coating film cover plate provided by the utility model reduces the reflection of specific wavelengths, and comprises a glass substrate 1 and, from bottom to top, a magnesium fluoride layer 11, a titanium dioxide layer 12, a niobium pentoxide layer 13, a silicon nitride layer 14 and a titanium carbide layer 15 sequentially stacked on the upper surface of the glass substrate 1, wherein the thickness of the magnesium fluoride layer 11 is 20-50 nm, the thickness of the titanium dioxide layer 12 is 20-50 nm, the thickness of the niobium pentoxide layer 13 is 20-50 nm, the thickness of the silicon nitride layer 14 is 50-80 nm, and the thickness of the titanium carbide layer 15 is 100-150 nm. The glass substrate 1 provides basic mechanical support and optical transparency as a base; the magnesium fluoride layer 11 serves as the first layer of the anti-reflection layer, and its low refractive index helps to reduce the reflection between air and the coating film layer; the titanium dioxide layer 12 is matched with the magnesium fluoride layer 11 to form the first optical interference pair, the titanium dioxide layer 12 serves as a high-refractive-index material and works together with the magnesium fluoride layer 11 to reduce the reflection of specific wavelengths through interference effect; the niobium pentoxide layer 13 can further improve the high-refractive-index of the film layer; the silicon nitride layer 14 has high hardness, high wear resistance and good chemical stability, and can enhance the overall hardness and durability of the coating film layer; and the titanium carbide layer 15 serves as a hard layer and can further protect the coating film layer from scratching and abrasion. The core principle of the patent lies in combining the optical interference effect of the multi-layer film with the physical properties of the material itself to comprehensively improve the performance of the glass substrate 1. Specifically, a series of optical interference pairs are formed by accurately controlling the thickness and refractive index of each layer, i.e. the magnesium fluoride layer 11, the titanium dioxide layer 12, the niobium pentoxide layer 13, the silicon nitride layer 14 and the titanium carbide layer 15. These paired layers interact when light passes through, causing constructive or destructive interference of specific wavelengths of light between the film layers, thereby effectively reducing the reflected light, enhancing the light transmission, and further reducing the reflectivity to meet the requirements of special operating environments, meet the market demand, and improve the competitiveness of the product. At the same time, the introduction of high-hardness materials such as silicon nitride and titanium carbide not only improves the overall hardness and wear resistance of the coating film layer, but also enhances its chemical stability, effectively resisting the erosion of the external environment. This composite coating design not only improves the optical performance of the glass substrate 1, but also significantly prolongs its service life, meeting the dual high-standard requirements of high-end electronic display products in terms of performance and appearance.

[0035] Embodiment 2, please refer to Figure 2 The utility model provides a handheld communication equipment, it includes the coating film cover plate of reducing specific wavelength's reflection of above -mentioned.

[0036] Please refer to Figure 3Further, the backlight module 200 comprises a lower frame 2, a reflective sheet 3, a light guide plate 4 and an optical film group 5, the lower frame 2 comprises a bottom plate 21 and a side wall 22 extending upward from the edge of the bottom plate 21, the reflective sheet 3, the light guide plate 4 and the optical film group 5 are sequentially stacked above the bottom plate 21 from bottom to top, the FPC 6 is arranged on the side wall 22, the LED lamp 7 is fixed on the FPC 6, and the high-transparency glass 8 is arranged between the light guide plate 4 and the reflective sheet 3. Since the high-transparency glass 8 is arranged between the light guide plate 4 and the reflective sheet 3, the light guide plate 4 and the reflective sheet 3 avoid direct contact, thereby avoiding wrinkles of the reflective sheet 3 or damage to the microstructure on the lower surface of the light guide plate 4 when shaken, and further avoiding display abnormalities and improving the competitiveness of the product.

[0037] Further, the high-transparency glass 8 is smooth glass, so as to reduce the friction between the high-transparency glass 8 and the reflective sheet 3 and the light guide plate 4, and avoid wrinkles of the reflective sheet 3 or damage to the microstructure on the lower surface of the light guide plate 4 when shaken.

[0038] Further, the roughness of the high-transparency glass 8 is less than 0.01 μm, further reducing the friction between the high-transparency glass 8 and the reflective sheet 3 and the light guide plate 4.

[0039] Further, the high-transparency glass 8 is in interference fit with the FPC 6 and the side wall 22, so as to prevent the high-transparency glass 8 from being shaken to cause wrinkles of the reflective sheet 3 or damage to the microstructure on the lower surface of the light guide plate 4.

[0040] Further, the thickness of the high-transparency glass 8 is 0.5 mm.

[0041] Embodiment 3, please refer to Figure 4 and Figure 5 As a further optimization scheme of Embodiment 2, in this embodiment, the edge of the upper surface of the high-transparency glass 8 is provided with a protrusion 81, and the light guide plate 4 is arranged on the upper surface of the protrusion 81, so as to avoid friction between the high-transparency glass 8 and the lower surface of the light guide plate 4, thereby avoiding damage to the microstructure on the lower surface of the light guide plate 4.

[0042] Further, the cross-sectional shape of the protrusion 81 is annular.

[0043] Further, the height of the protrusion 81 is 0.2 mm.

[0044] Further, the protrusion 81 is located in the non-visible area and surrounds the visible area, so as to avoid affecting the display effect.

[0045] Further, the upper surface of the protrusion 81 is provided with a rubber pad 82, so as to firmly fix the light guide plate 4 above the high-transparency glass 8 and reduce friction.

[0046] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " 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 electric connection or each other can communicate;Can be directly connected, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0047] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement for part of the technical features. Any equivalent structure made by using the contents of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A coated cover sheet that reduces reflection of a specific wavelength, characterized in that, The glass substrate and a magnesium fluoride layer, a titanium dioxide layer, a niobium pentoxide layer, a silicon nitride layer and a titanium carbide layer sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the magnesium fluoride layer is 20-50 nm, the thickness of the titanium dioxide layer is 20-50 nm, the thickness of the niobium pentoxide layer is 20-50 nm, the thickness of the silicon nitride layer is 50-80 nm, and the thickness of the titanium carbide layer is 100-150 nm.

2. A hand-held communication device, characterized by The coated cover plate for reducing reflection of specific wavelengths comprises the glass substrate and a magnesium fluoride layer, a titanium dioxide layer, a niobium pentoxide layer, a silicon nitride layer and a titanium carbide layer sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the magnesium fluoride layer is 20-50 nm, the thickness of the titanium dioxide layer is 20-50 nm, the thickness of the niobium pentoxide layer is 20-50 nm, the thickness of the silicon nitride layer is 50-80 nm, and the thickness of the titanium carbide layer is 100-150 nm.

3. The hand-held communication device of claim 2, wherein, The glass substrate is provided with a display module below, and the display module is provided with a backlight module below.

4. The hand-held communication device of claim 3, wherein, The backlight module comprises a lower frame, a reflective sheet, a light guide plate and an optical film group, the lower frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, the reflective sheet, the light guide plate and the optical film group are sequentially stacked on the upper surface of the bottom plate from bottom to top, the FPC is arranged on the side wall, the LED lamp is fixed on the FPC, and the high-transparency glass is arranged between the light guide plate and the reflective sheet.

5. The hand-held communication device of claim 4, wherein, The high-transparency glass is smooth glass.

6. The hand-held communication device of claim 4, wherein, The high-transparency glass is in interference fit with the FPC and the side wall.

7. The hand-held communication device of claim 4, wherein, The upper surface of the high-transparency glass is provided with a protrusion, and the light guide plate is arranged on the upper surface of the protrusion.

8. The hand-held communication device of claim 7, wherein, The cross-sectional shape of the protrusion is annular.

9. The hand-held communication device of claim 7, wherein, The protrusion is located in a non-visible area and surrounds a visible area.

10. The hand-held communication device of claim 7, wherein, The upper surface of the protrusion is provided with a rubber pad.

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