Coated cover plate with adjustable optical performance and smart phone display screen

Abstract

The utility model discloses a film-coated cover plate capable of adjusting optical performance and a smart phone display screen, the film-coated cover plate capable of adjusting optical performance comprises a glass cover plate, and an aluminum oxynitride layer, a beryllium oxide layer and a bismuth trioxide layer which are arranged on the upper surface of the glass cover plate in sequence from bottom to top, the thickness of the aluminum oxynitride layer is 20nm-30nm, and the thickness of the beryllium oxide layer is 20nm-30nm. The thickness of the beryllium oxide layer ranges from 30 nm to 40 nm, and the thickness of the bismuth trioxide layer ranges from 10 nm to 20 nm. And the aluminum oxynitride layer is used as an adhesion layer, so that the adhesion between the subsequent plating layer and the glass cover plate can be enhanced. The bismuth trioxide layer serves as the outermost layer, possibly has specific optical and electrical properties and can be used for adjusting the optical performance of the coating layer, such as increasing the light transmittance and the refractive index, so that the optical performance of the coating layer is adjustable, and the competitiveness of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a coated cover plate with adjustable optical performance and a smartphone display screen. Background Technology

[0002] With the rapid development of electronic technology, the requirements for glass covers are increasing, especially in the consumer electronics field such as smartphones, tablets, and wearable devices. Traditional glass covers have certain limitations in terms of hardness, wear resistance, thermal management, electrical insulation, and optical properties, making it difficult to meet the multifunctional needs of high-end products. For example, many new products now require glass covers to have the function of adjusting light transmittance and refractive index, which existing products struggle to meet. Therefore, developing a novel multilayer coating technology that precisely controls the composition and structure of the coating layers to improve the overall performance of glass covers has become a current research hotspot. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to enable the glass cover to have the function of adjusting the light transmittance and refractive index, so that its optical performance is adjustable, thereby improving the competitiveness of the product.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] To solve the above-mentioned technical problems, this utility model provides a coated cover plate with adjustable optical performance, which includes a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer and a bismuth trioxide layer sequentially disposed on the upper surface of the glass cover plate from bottom to top. The thickness of the aluminum oxynitride layer is 20nm-30nm, the thickness of the beryllium oxide layer is 30nm-40nm, and the thickness of the bismuth trioxide layer is 10nm-20nm.

[0006] This invention provides a smartphone display screen, which includes a coated cover plate with adjustable optical performance as described above.

[0007] In a preferred embodiment of the smartphone display screen provided by this utility model, a TFT module is disposed below the glass cover, and a backlight module is disposed below the TFT module.

[0008] In a preferred embodiment of the smartphone display provided by this utility model, the backlight module includes a lower frame, a reflective sheet, a light guide plate, and an FPC. The lower frame includes a base plate and a sidewall extending upward from the edge of the base plate. The reflective sheet is disposed on the base plate, the light guide plate is disposed on the reflective sheet, and the FPC is disposed on the sidewall.

[0009] In a preferred embodiment of the smartphone display screen provided by this utility model, a notch is provided at the connection between the edge of the base plate and the side wall, and a plastic frame is injection molded around the outer edge of the notch. The plastic frame is integrally formed with the lower frame, and the plastic frame is not completely closed but has an opening. One end of the FPC is fixed to the inner side of the base plate by thermally conductive adhesive, and the other end of the FPC passes through the opening of the plastic frame and extends outward.

[0010] In a preferred embodiment of the smartphone display screen provided by this utility model, a ramp is provided at the notch of the base plate and the side wall.

[0011] In a preferred embodiment of the smartphone display screen provided by this utility model, the slope at the notch of the base plate has a different orientation than the slope at the notch of the side wall.

[0012] In a preferred embodiment of the smartphone display screen provided by this utility model, the sides of the notches in the base plate and the side wall are provided with serrated grooves.

[0013] In a preferred embodiment of the smartphone display screen provided by this utility model, the edge of the rubber frame is chamfered.

[0014] In a preferred embodiment of the smartphone display screen provided by this utility model, the chamfer is either a rounded corner or a right angle.

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

[0016] The aluminum oxynitride layer, acting as an adhesion layer, enhances the adhesion between subsequent coatings and the glass cover. Aluminum oxynitride possesses excellent mechanical strength and chemical stability, contributing to the stability and durability of the entire coating layer. The beryllium oxide layer is primarily used to adjust the thermal and electrical properties of the coating layer. It exhibits high thermal conductivity, good electrical insulation, and certain chemical stability, serving as a transition layer between the alumina and bismuth trioxide layers to improve interlayer adhesion and optimize the overall performance of the coating layer. The bismuth trioxide layer, as the outermost layer, may possess specific optical and electrical properties. It can be used to adjust the optical properties of the coating layer, such as increasing transmittance and refractive index, making its optical properties tunable and thus enhancing product competitiveness.

[0017] This patented technology, based on advanced materials science and coating processes, precisely controls the deposition sequence and thickness of bismuth trioxide, beryllium oxide, and aluminum oxynitride to construct a multi-layered coating with unique properties on the surface of a glass cover. The aluminum oxynitride layer, at the bottom, acts as an adhesion layer, ensuring a tight bond between the coating and the glass cover, enhancing the stability and durability of the coating. The beryllium oxide layer, as an intermediate layer, utilizes its high thermal conductivity and good electrical insulation to adjust the thermal and electrical properties of the coating, while also serving as a transition layer to strengthen interlayer adhesion. The bismuth trioxide layer, as the surface layer, adjusts optical properties such as transmittance and refractive index according to specific needs, and may exhibit conductivity or dielectric properties to meet the requirements of different application scenarios. This layered design achieves comprehensive optimization of the glass cover's hardness, abrasion resistance, thermal performance, electrical performance, and optical performance, providing a more reliable, efficient, and aesthetically pleasing cover solution for high-end electronic products. Attached Figure Description

[0018] 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.

[0019] Figure 1 A schematic diagram of the structure of a coated cover plate with adjustable optical performance provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of a smartphone display screen provided by this utility model.

[0021] Figure 3 for Figure 2 A schematic diagram of the backlight module.

[0022] Explanation of icon numbers:

[0023] Glass cover plate 1; aluminum oxynitride layer 11; beryllium oxide layer 12; bismuth trioxide layer 13;

[0024] TFT module 2; backlight module 3; lower frame 4; reflective sheet 5; light guide plate 6; FPC 7; base plate 41; side wall 42; notch 43; adhesive frame 44. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] This utility model provides a coated cover plate with adjustable optical performance, which includes a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer and a bismuth trioxide layer sequentially disposed on the upper surface of the glass cover plate from bottom to top. The thickness of the aluminum oxynitride layer is 20nm-30nm, the thickness of the beryllium oxide layer is 30nm-40nm, and the thickness of the bismuth trioxide layer is 10nm-20nm.

[0029] The aluminum oxynitride layer, acting as an adhesion layer, enhances the adhesion between subsequent coatings and the glass cover. Aluminum oxynitride possesses excellent mechanical strength and chemical stability, contributing to the stability and durability of the entire coating layer. The beryllium oxide layer is primarily used to adjust the thermal and electrical properties of the coating layer. It exhibits high thermal conductivity, good electrical insulation, and certain chemical stability, serving as a transition layer between the alumina and bismuth trioxide layers to improve interlayer adhesion and optimize the overall performance of the coating layer. The bismuth trioxide layer, as the outermost layer, may possess specific optical and electrical properties. It can be used to adjust the optical properties of the coating layer, such as increasing transmittance and refractive index, making its optical properties tunable and thus enhancing product competitiveness.

[0030] This patented technology, based on advanced materials science and coating processes, precisely controls the deposition sequence and thickness of bismuth trioxide, beryllium oxide, and aluminum oxynitride to construct a multi-layered coating with unique properties on the surface of a glass cover. The aluminum oxynitride layer, at the bottom, acts as an adhesion layer, ensuring a tight bond between the coating and the glass cover, enhancing the stability and durability of the coating. The beryllium oxide layer, as an intermediate layer, utilizes its high thermal conductivity and good electrical insulation to adjust the thermal and electrical properties of the coating, while also serving as a transition layer to strengthen interlayer adhesion. The bismuth trioxide layer, as the surface layer, adjusts optical properties such as transmittance and refractive index according to specific needs, and may exhibit conductivity or dielectric properties to meet the requirements of different application scenarios. This layered design achieves comprehensive optimization of the glass cover's hardness, abrasion resistance, thermal performance, electrical performance, and optical performance, providing a more reliable, efficient, and aesthetically pleasing cover solution for high-end electronic products.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Example 1, please refer to Figure 1This invention provides an adjustable optical performance coated cover plate, comprising a glass cover plate 1 and, from bottom to top, three layers sequentially disposed on the upper surface of the glass cover plate 1: an aluminum oxynitride layer 11, a beryllium oxide layer 12, and a bismuth trioxide layer 13. The aluminum oxynitride layer 11 has a thickness of 20nm-30nm, the beryllium oxide layer 12 has a thickness of 30nm-40nm, and the bismuth trioxide layer 13 has a thickness of 10nm-20nm. The aluminum oxynitride layer 11 serves as an adhesion layer, enhancing the adhesion between subsequent coatings and the glass cover plate 1. Aluminum oxynitride possesses excellent mechanical strength and chemical stability, which helps ensure the stability and durability of the entire coating layer. The beryllium oxide layer 12 is mainly used to adjust the thermal and electrical properties of the coating layer. It has high thermal conductivity, good electrical insulation, and certain chemical stability. It can serve as a transition layer between the alumina and bismuth trioxide layers 13, improving interlayer adhesion and optimizing the overall performance of the coating layer. The bismuth trioxide layer 13, as the outermost layer, may have specific optical and electrical properties. It can be used to adjust the optical properties of the coating layer, such as increasing light transmittance and refractive index, making its optical properties tunable and thus improving the competitiveness of the product.

[0033] This patented technology, based on advanced materials science and coating processes, precisely controls the deposition sequence and thickness of bismuth trioxide, beryllium oxide, and aluminum oxynitride to construct a multi-layered coating with unique properties on the surface of a glass cover plate 1. The aluminum oxynitride layer 11, at the bottom, acts as an adhesion layer, ensuring a tight bond between the coating and the glass cover plate 1, enhancing the stability and durability of the coating. The beryllium oxide layer 12, as an intermediate layer, utilizes its high thermal conductivity and good electrical insulation to adjust the thermal and electrical properties of the coating, while also serving as a transition layer to enhance interlayer adhesion. The bismuth trioxide layer 13, as the surface layer, adjusts optical properties such as transmittance and refractive index according to specific needs, and may exhibit conductivity or dielectric properties to meet the requirements of different application scenarios. Through this layered design, comprehensive optimization of the hardness, wear resistance, thermal properties, electrical properties, and optical properties of the glass cover plate 1 is achieved, providing a more reliable, efficient, and aesthetically pleasing cover solution for high-end electronic products.

[0034] Example 2, please refer to Figure 2 and Figure 3 This invention provides a smartphone display screen, which includes a coated cover plate with adjustable optical performance as described above. A TFT module 2 is disposed below the glass cover plate 1, and a backlight module 3 is disposed below the TFT module 2. The backlight module 3 includes a lower frame 4, a reflective sheet 5, a light guide plate 6, and an FPC 7. The lower frame 4 includes a base plate 41 and a sidewall 42 extending upward from the edge of the base plate 41. The reflective sheet 5 is disposed on the base plate 41, the light guide plate 6 is disposed on the reflective sheet 5, and the FPC 7 is disposed on the sidewall 42.

[0035] Furthermore, a notch 43 is provided at the connection between the edge of the base plate 41 and the side wall 42. A plastic frame 44 is injection molded around the outer edge of the notch 43. The plastic frame 44 is integrally formed with the lower frame 4. The plastic frame 44 is not completely closed, thus forming an opening. One end of the FPC7 is fixed to the inner side of the side wall 42 by thermally conductive adhesive, and the other end of the FPC7 passes through the opening of the plastic frame 44 and extends outward. Since the plastic frame 44 is injection molded at the opening of the notch 43 of the base plate 41 and the side wall 42, and the plastic frame 44 also forms an opening, the FPC7 can pass through the opening and connect to the module. Moreover, the material of the plastic frame 44 is relatively soft, which can effectively avoid scratching or puncturing the PI cover film of the FPC7, and prevent the circuit of the FPC7 from contacting and conducting with the lower frame 4, thus causing a short circuit. This allows the backlight module 3 to display normally. There is also no need to apply single-sided adhesive, and there is no need to worry about problems caused by single-sided adhesive being too thin or too thick.

[0036] Furthermore, a ramp is provided at the notch 43 of the base plate 41 and the side wall 42 so that the plastic frame 44 is stuck by the ramp after molding, thus preventing the plastic frame 44 from falling off.

[0037] Furthermore, the slope at the notch 43 of the base plate 41 and the slope at the notch 43 of the side wall 42 have different orientations, and the slopes at different locations are staggered to ensure that the rubber frame 44 will not fall off in any direction.

[0038] Furthermore, serrated grooves are provided on the sides of the notches 43 of the base plate 41 and the side wall 42 to further improve the bonding force between the rubber frame 44 and the lower frame 4 and prevent the rubber frame 44 from falling off.

[0039] Furthermore, the edge of the rubber frame 44 is chamfered, which can be a right angle or a rounded corner. Both right angles and rounded corners can prevent scratches on the FPC7.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A coated cover plate with adjustable optical properties, characterized in that, It includes a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer, and a bismuth trioxide layer sequentially disposed on the upper surface of the glass cover plate from bottom to top. The thickness of the aluminum oxynitride layer is 20nm-30nm, the thickness of the beryllium oxide layer is 30nm-40nm, and the thickness of the bismuth trioxide layer is 10nm-20nm.

2. A smartphone display screen, characterized in that, It includes the coated cover plate with adjustable optical properties as described in claim 1.

3. The smartphone display screen according to claim 2, characterized in that, A TFT module is located below the glass cover, and a backlight module is located below the TFT module.

4. The smartphone display screen according to claim 3, characterized in that, The backlight module includes a lower frame, a reflective sheet, a light guide plate, and an FPC. The lower frame includes a base plate and a sidewall extending upward from the edge of the base plate. The reflective sheet is disposed on the base plate, the light guide plate is disposed on the reflective sheet, and the FPC is disposed on the sidewall.

5. The smartphone display screen according to claim 4, characterized in that, A notch is provided at the connection between the edge of the base plate and the side wall. A plastic frame is injection molded around the outer edge of the notch. The plastic frame is integrally formed with the lower frame. The plastic frame is not completely closed and has an opening. One end of the FPC is fixed to the inner side of the base plate by thermally conductive adhesive. The other end of the FPC passes through the opening of the plastic frame and extends outward.

6. The smartphone display screen according to claim 5, characterized in that, The gaps in the base plate and the side wall are provided with ramps.

7. The smartphone display screen according to claim 6, characterized in that, The slope at the notch in the base plate has a different orientation than the slope at the notch in the side wall.

8. The smartphone display screen according to claim 5, characterized in that, The sides of the notches in the base plate and the side wall are provided with serrated grooves.

9. The smartphone display screen according to claim 5, characterized in that, The edges of the rubber frame are chamfered.

10. The smartphone display screen according to claim 9, characterized in that, The chamfer is either a rounded corner or a right angle.

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