Coated cover plate and electronic equipment comprising same

Abstract

The utility model provides a film-coated cover plate and an electronic device comprising the same, the film-coated cover plate comprises a cover plate body, the upper surface of the cover plate body comprises a titanium nitride layer, a diboron trioxide layer and a lead oxide layer which are laminated; wherein the thickness of the titanium nitride layer is 50-100 nm, the thickness of the diboron trioxide layer is 150-200 nm, and the thickness of the lead oxide layer is 30-80 nm. According to the utility model, the titanium nitride bottom layer is plated on the cover plate, so that excellent wear resistance is provided, and the glass substrate can be protected from being scratched and worn. And by introducing diboron trioxide and lead oxide, the optical performance of the coating layer can be adjusted, so that specific optical requirements are met. Meanwhile, titanium nitride and diboron trioxide have good chemical stability and can protect the glass substrate from chemical corrosion. Therefore, the film-coated cover plate provided by the utility model can realize multiple functions by adjusting the thickness and composition of each layer.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen cover plates, and in particular to a film-coated cover plate and an electronic device comprising the same. Background Art

[0002] With the advancement of science and technology and the continuous development of optical technology, the requirements for the optical performance, wear resistance, and chemical stability of glass cover plates are becoming increasingly stringent. Traditional glass cover plates often fail to meet these high standards, especially in applications that require high transmittance, scratch resistance, and good chemical stability. Therefore, the development of a new, high-performance glass cover plate coating technology is particularly important.

[0003] While a variety of materials have been used to improve the optical performance of glass cover plates in existing coating technologies, most rely on a single material or simple multi-layer structures, failing to meet complex optical performance requirements. Furthermore, these coating technologies also have limitations in terms of wear resistance and chemical stability. Utility Model Content

[0004] The purpose of the present invention is to provide a coated cover plate and an electronic device including the same, aiming to partially solve the above technical problems.

[0005] Specifically, the specific technical solution of the utility model is: a coated cover plate is proposed, including a cover plate body, the upper surface of the cover plate body includes a stacked titanium nitride layer, a boron trioxide layer and a lead oxide layer; wherein the thickness of the titanium nitride layer is 50 to 100 nm, the thickness of the boron trioxide layer is 150 to 200 nm, and the thickness of the lead oxide layer is 30 to 80 nm.

[0006] As a preferred technical solution, the refractive index of the titanium nitride layer at a wavelength of 550 nm is 2.0-2.5.

[0007] As a preferred technical solution, the transmittance of the boron trioxide layer is 85% to 92%.

[0008] As a preferred technical solution, the refractive index of the boron trioxide layer at a wavelength of 550 nm is 1.50-1.52.

[0009] As a preferred technical solution, the visible light reflectivity of the coated cover plate is lower than 4.6%.

[0010] As a preferred technical solution, the titanium nitride layer is a film layer prepared by sputtering coating.

[0011] As a preferred technical solution, the surface of the lead oxide layer also includes an anti-fingerprint coating.

[0012] As a preferred technical solution, the cover body is a glass substrate, and the glass substrate is a transparent glass substrate.

[0013] As a preferred technical solution, the thickness of the glass substrate is 0.3 to 1.2 mm.

[0014] On the other hand, an electronic device is provided. The electronic device includes a cover plate, and the cover plate is the above-mentioned coated cover plate.

[0015] The beneficial effects of the present invention are as follows: the coated cover plate proposed by the present invention provides excellent wear resistance by coating a titanium nitride bottom layer on the cover plate, which can protect the glass substrate from scratches and abrasion. The optical properties of the coating layer, such as refractive index, transmittance, etc., can be adjusted by introducing boron trioxide and lead oxide to meet specific optical requirements. At the same time, both titanium nitride and boron trioxide have good chemical stability and can protect the glass substrate from chemical corrosion. Therefore, the coated cover plate of the present application can achieve multiple functions, such as anti-reflection, anti-reflection, light filtering, etc., by adjusting the thickness and composition of each layer. Therefore, the supported coated cover plate has excellent wear resistance, chemical stability and optical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a coated cover plate proposed in an embodiment of the present utility model.

[0018] Description of the reference numerals: cover plate 1; titanium nitride layer 2; boron trioxide layer 3; lead oxide layer 4. DETAILED DESCRIPTION

[0019] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0020] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0021] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0022] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0023] It should be noted that the “plurality” mentioned in this article refers to two or more.

[0024] Example

[0025] like Figure 1 As shown, a coated cover plate 1 is proposed, comprising a cover plate 1 body, wherein the upper surface of the cover plate 1 body comprises a titanium nitride layer 2, a boron trioxide layer 3 and a lead oxide layer 4 stacked.

[0026] The thickness of the titanium nitride layer 2 is 50 to 100 nm. Preferably, the refractive index of the titanium nitride layer 2 at a wavelength of 550 nm is 2.0 to 2.5. Titanium nitride is a hard material with excellent wear resistance and chemical stability. As a base layer, it provides good adhesion and protection to the glass substrate.

[0027] Boron trioxide layer 3 has a thickness of 150 to 200 nm. Boron trioxide is a material with excellent optical properties and is commonly used in optical coatings. It can improve the optical properties of the coating layer, such as refractive index and transmittance. Preferably, the transmittance of the boron trioxide layer 3 is 85% to 92%, and the refractive index of the boron trioxide layer 3 at a wavelength of 550 nm is 1.50 to 1.52.

[0028] The lead oxide layer 4 has a thickness of 30 to 80 nm. Lead oxide can be used as an optical coating material in certain applications, imparting specific optical properties. As a top layer, it further modifies the optical properties of the coating and provides additional protection.

[0029] Preferably, the visible light reflectivity of the produced coated cover plate 1 is lower than 4.6%, which meets the optical requirements of the cover plate 1 .

[0030] Preferably, the titanium nitride layer 2 is a film layer prepared by sputtering.

[0031] Preferably, the surface of the lead oxide layer 4 further includes an anti-fingerprint coating. The material of the anti-fingerprint coating can be an organic fluoride, such as perfluoropolyether.

[0032] Preferably, the cover plate 1 is made of a glass substrate, which is a transparent glass substrate with a thickness of 0.3 to 1.2 mm.

[0033] On the other hand, this embodiment also provides an electronic device, comprising a cover plate 1, wherein the cover plate 1 is the aforementioned coated cover plate 1. The electronic device may be a mobile phone, a tablet computer, or the like. After being manufactured, the electronic device has excellent wear resistance, chemical stability, and optical properties.

[0034] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A coated cover plate, characterized in that: It includes a cover plate body, the upper surface of which includes a stacked titanium nitride layer, a boron trioxide layer and a lead oxide layer; wherein the thickness of the titanium nitride layer is 50 to 100 nm, the thickness of the boron trioxide layer is 150 to 200 nm, and the thickness of the lead oxide layer is 30 to 80 nm.

2. The coated cover plate according to claim 1, characterized in that: The refractive index of the titanium nitride layer at a wavelength of 550 nm is 2.0-2.

5.

3. The coated cover plate according to claim 1, characterized in that: The boron trioxide layer has a transmittance of 85% to 92%.

4. The coated cover plate according to claim 3, characterized in that: The refractive index of the boron trioxide layer at a wavelength of 550 nm is 1.50-1.

52.

5. The coated cover plate according to claim 4, characterized in that: The visible light reflectivity of the coated cover plate is lower than 4.6%.

6. The coated cover plate according to claim 1, characterized in that: The titanium nitride layer is a film layer prepared by sputtering coating.

7. The coated cover plate according to claim 1, characterized in that: The surface of the lead oxide layer also includes an anti-fingerprint coating.

8. The coated cover plate according to claim 1, characterized in that: The cover body is a glass substrate, and the glass substrate is a transparent glass substrate.

9. The coated cover plate according to claim 8, characterized in that: The thickness of the glass substrate is 0.3-1.2 mm.

10. An electronic device, characterized in that: The electronic device has a cover plate, and the cover plate is the coated cover plate according to any one of claims 1 to 9.

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