Reflection type film-coated cover plate and display device

Abstract

The utility model relates to a reflective film-coated cover plate and a display device, the film-coated cover plate comprises a glass substrate, and a first wear-resistant layer, a first refraction film layer, a second refraction film layer and a second wear-resistant layer are sequentially stacked on the front surface of the glass substrate from bottom to top; the refractive index of the first refraction film layer is 2.27 to 2.7; and the refractive index of the second refraction film layer is 1.83 to 1.9. According to the utility model, the composite coating layer is arranged on the glass substrate of the coating cover plate, and based on the unique physical and chemical properties of each film layer, the reflective characteristic, the wear resistance, the corrosion resistance and the durability of the glass cover plate can be obviously improved by finely selecting the material and the thickness of each layer. And an effective solution is provided for design and application of products such as intelligent cosmetic mirrors and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a reflective coating cover plate and a display device. Background Art

[0002] Display cover panels are transparent lenses that protect the touch module and non-touch screen of a display. They are typically laminated to the outside of electronic displays. Cover panels are categorized by material, including glass, acrylic, and PC. They are required to exhibit high light transmittance, anti-reflection properties, hardness, and stability. Display cover panels are widely used in various electronic products, such as mobile phones, tablets, laptops, and televisions. With technological advancements, display cover panels are constantly being innovated and upgraded to meet the demands of higher-quality displays and diverse user experiences.

[0003] In existing technologies, some specialized applications, such as smart magic mirrors, liquid crystal display mirrors, and integrated makeup mirrors, require glass cover plates with enhanced reflectivity and low light transmittance, which is the exact opposite of the requirements for glass cover plates used in traditional electronic products. Therefore, existing glass cover plates cannot meet the demand for more aesthetically pleasing and personalized displays in these applications. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a reflective coated cover plate and a display device, the purpose of which is to improve the reflective properties of the glass cover plate and meet the application requirements in the fields of smart makeup mirrors and the like.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] The utility model provides a reflective coated cover plate, comprising a glass substrate, wherein a first wear-resistant layer, a first refractive film layer, a second refractive film layer and a second wear-resistant layer are sequentially stacked on the front side of the glass substrate from bottom to top; the refractive index of the first refractive film layer is 2.27 to 2.7; the refractive index of the second refractive film layer is 1.83 to 1.9.

[0007] Further the above technical solution is:

[0008] The thickness of the first wear-resistant layer is 50 to 100 nanometers.

[0009] The thickness of the first refractive film layer is 170 to 270 nanometers.

[0010] The thickness of the second refractive film layer is 70 to 120 nanometers.

[0011] The thickness of the second wear-resistant layer is 50 to 60 nanometers.

[0012] The first refractive film layer is a titanium oxide film layer; the second refractive film layer is a praseodymium oxide film layer.

[0013] The first wear-resistant layer is a samarium oxide film layer; the second wear-resistant layer is a titanium carbide film layer.

[0014] One or more grooves are provided on the back of the glass substrate, and a decorative film layer is provided on the bottom surface and / or the side surface of the groove.

[0015] The decorative film layer is a pure copper plating layer with a thickness of 50 nanometers.

[0016] The utility model also provides a display device, comprising the reflective coating cover plate and a display screen. A positioning post is provided on the surface of the backlight module of the display screen, and the positioning post is used to be engaged with the groove.

[0017] The beneficial effects of the utility model are as follows:

[0018] This new design employs a composite coating layer on the glass substrate of a coated cover. Based on the unique physical and chemical properties of each layer and through careful selection of the material and thickness of each layer, the glass cover's reflective properties, wear resistance, corrosion resistance, and durability are significantly improved. This provides an effective solution for the design and application of products such as smart makeup mirrors.

[0019] The back of the glass of the present invention is basically designed to be used to set a groove for the decorative film layer, which can achieve corresponding display effects, such as enhancing the metallic gloss and further enhancing the reflective effect to meet personalized needs.

[0020] The layered structure of the coating cover plate of the present invention not only realizes the integration of multiple functions, but also facilitates achieving the best effect of performance optimization by precisely controlling the parameters of each layer.

[0021] The display device comprising the coated cover plate of the utility model exhibits excellent reflective properties when the backlight is turned off, allowing it to function as a mirror. When the backlight is turned on, it can be used as a display screen, fully meeting the needs of various application scenarios. Furthermore, the alignment of the positioning posts on the backlight with the grooves in the glass substrate ensures accurate alignment during assembly.

[0022] Other features and advantages of the present invention will be described in the following description or will be understood through implementation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model.

[0024] Figure 2 This is a structural diagram of Example 2 of the present utility model.

[0025] Figure 3 for Figure 2Enlarged view of part A in the middle.

[0026] Figure 4 This is a schematic structural diagram of the display screen of Example 3 of the present utility model.

[0027] In the figure: 1. Glass substrate; 2. First wear-resistant layer; 3. First refractive film layer; 4. Second refractive film layer; 5. Second wear-resistant layer; 6. Groove; 7. Backlight plastic frame; 8. Display screen; 9. Backlight unit; 10. Decorative film layer; 71. Positioning column. DETAILED DESCRIPTION

[0028] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0029] Example 1

[0030] See also Figure 1 The reflective coated cover plate of this embodiment includes a glass substrate 1, and a first wear-resistant layer 2, a first refractive film layer 3, a second refractive film layer 4, and a second wear-resistant layer 5 are sequentially stacked on the front side of the glass substrate 1 from bottom to top;

[0031] The refractive index of the first refractive film layer 3 is 2.27 to 2.7;

[0032] The refractive index of the second refractive film layer 4 is 1.83-1.9.

[0033] As a specific embodiment, the thickness of the first wear-resistant layer 2 is 50 to 100 nanometers.

[0034] As a specific embodiment, the thickness of the first refractive film layer 3 is 170-270 nanometers.

[0035] As a specific embodiment, the thickness of the second refractive film layer 4 is 70-120 nanometers.

[0036] As a specific embodiment, the thickness of the second wear-resistant layer 5 is 50 to 60 nanometers.

[0037] As a specific embodiment, the first wear-resistant layer 3 is a samarium oxide film layer; the second wear-resistant layer 5 is a titanium carbide film layer.

[0038] Among them, samarium oxide (Sm2O3) as the bottom layer can provide good adhesion and thermal stability, which helps to enhance the bonding strength between the coating layer and the glass substrate, ensuring the close bonding and long-term stability of the entire composite coating layer and the glass substrate, providing a solid foundation for the entire composite coating layer and improving the overall durability of the coating layer to a certain extent.

[0039] Among them, titanium carbide (TiC) is used to protect the reflective film layer and increase the scratch resistance of the cover surface.

[0040] As a specific embodiment, the first refractive film layer 3 is a titanium oxide film layer; and the second refractive film layer 4 is a praseodymium oxide film layer.

[0041] The titanium oxide (TiO2) has excellent optical properties and self-cleaning ability, which can significantly improve the light transmittance and reduce light reflection, and at the same time endow the coated film layer with self-cleaning function. The praseodymium oxide (Pr6O 11 ) can adjust the refractive index of the coated film layer, further optimizing the anti-reflection effect; in addition, the praseodymium oxide also has a positive effect on the thermal stability and weather resistance of the entire composite coated film layer.

[0042] As a specific embodiment, a magnetron sputtering process can be used to set each layer.

[0043] In this embodiment, the high-refractive titanium oxide film layer and the low-refractive praseodymium oxide film layer form a double-layer refractive film structure, and the low-refractive layer and the high-refractive layer are distributed above and below, which can achieve a wider viewing angle, higher brightness and lower reflection display effect. Thus, the glass cover plate surface presents a more intense mirror surface effect, which is more beautiful.

[0044] The reflectivity of the reflective coated cover plate set according to the parameters of this embodiment can reach 60%-70%.

[0045] Since the low-refractive praseodymium oxide film layer of this embodiment is located in the upper layer, its wear resistance and stability are poorer than those of the high-refractive titanium oxide film layer. Therefore, a second wear-resistant layer is further provided on the upper part thereof, thereby improving the surface scratch resistance and wear resistance.

[0046] The reflective coated cover plate of this embodiment can be used alone as a non-emitting mirror; it can also be combined with a display screen to form a display device with special reflective effect, meeting the application in specific scenarios.

[0047] Embodiment 2

[0048] Referring to Figure 2 , Figure 3 The reflective coated cover plate of this embodiment is different from that of Embodiment 1 in that the back surface of the glass substrate 1 is provided with one or more grooves 6, and the groove bottom surface and / or groove side surface of the groove 6 is provided with a decorative film layer 10.

[0049] The decorative film layer 10 can display the corresponding decorative effect from the surface of the glass substrate 1.

[0050] As a specific embodiment, the decorative film layer 10 is a pure copper plated film layer with a thickness of 50 nanometers. The pure copper plated film layer can make the glass panel present a metallic luster, further enhancing the display effect of reflection and enhancing the glare.

[0051] As a preferred embodiment, the back surface of the glass substrate 1 is provided with a plurality of grooves 6, and the plurality of grooves 6 are uniformly distributed along the two side edges.

[0052] Embodiment 3

[0053] Referring to Figure 4 The display device of the present embodiment comprises the reflective coated cover plate of Embodiment 1 or Embodiment 2, and a display screen 8 and a backlight unit 9 for assembling with the reflective coated cover plate.

[0054] For the display screen 8 and the backlight unit 9 adapted to the reflective coated cover plate of Embodiment 2, as shown in the figure, positioning posts 71 are arranged on the gum frame 7 of the backlight unit 9, and the positioning posts 71 are fitted with the grooves 10, so as to facilitate accurate positioning when the cover plate is attached to the display screen. Figure 4

[0055] The display device of the present embodiment can be used in scenarios such as smart display cosmetic mirrors. When in use, the backlight is turned off, and the cover plate surface presents good reflective characteristics, which can be used as a mirror. When the backlight is turned on, it can be used for the display screen. And it can be understood that, due to the reflective characteristics of the cover plate surface, a high-brightness backlight can be set according to the needs to meet the basic display effect.

[0056] It can be understood by those skilled in the art that the above description is only preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.​

Claims

1. A reflective coating cover plate, characterized in that: The invention comprises a glass substrate (1), wherein a first wear-resistant layer (2), a first refractive film layer (3), a second refractive film layer (4) and a second wear-resistant layer (5) are sequentially stacked on the front side of the glass substrate (1) from bottom to top; the refractive index of the first refractive film layer (3) is 2.27 to 2.7; and the refractive index of the second refractive film layer (4) is 1.83 to 1.

9.

2. The reflective coating cover plate according to claim 1, wherein: The thickness of the first wear-resistant layer (2) is 50 to 100 nanometers.

3. The reflective coating cover plate according to claim 1, wherein: The thickness of the first refractive film layer (3) is 170 to 270 nanometers.

4. The reflective coating cover plate according to claim 1, wherein: The thickness of the second refractive film layer (4) is 70 to 120 nanometers.

5. The reflective coating cover plate according to claim 1, wherein: The thickness of the second wear-resistant layer (5) is 50 to 60 nanometers.

6. The reflective coating cover plate according to claim 1, wherein: The first refractive film layer (3) is a titanium oxide film layer; the second refractive film layer (4) is a praseodymium oxide film layer.

7. The reflective coating cover plate according to claim 1, wherein: The first wear-resistant layer (3) is a samarium oxide film layer; the second wear-resistant layer (5) is a titanium carbide film layer.

8. The reflective coating cover plate according to claim 1, wherein: One or more grooves (6) are provided on the back of the glass substrate (1), and a decorative film layer (10) is provided on the bottom surface and / or the side surface of the groove (6).

9. The reflective coating cover plate according to claim 8, wherein: The decorative film layer (10) is a pure copper plating layer with a thickness of 50 nanometers.

10. A display device, characterized in that: It comprises the reflective coating cover plate and the display screen according to claim 8 or 9, wherein a positioning column (71) is provided on the surface of the backlight module of the display screen, and the positioning column (71) is used to be engaged with the groove (10).

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