Coated cover plate capable of improving light transmission and hardness and liquid crystal display screen

Abstract

The utility model discloses a film-coated cover plate and liquid crystal display screen for improving light transmission and hardness, the cover plate comprises a glass substrate, and a lower tantalum oxide layer, a titanium dioxide layer, a TeO2 layer and an upper tantalum oxide layer which are sequentially superposed on the upper surface of the glass substrate from bottom to top, the thickness of the lower tantalum oxide layer is 50nm-100nm, the thickness of the titanium dioxide layer is 100nm-200nm, the thickness of the TeO2 layer is 100nm-200nm, and the thickness of the upper tantalum oxide layer is 100nm-200nm. The thickness of the TeO2 layer ranges from 50 nm to 150 nm, and the thickness of the upper tantalum oxide layer ranges from 50 nm to 100 nm. The lower tantalum oxide layer has good adhesion, can be firmly attached to the surface of glass and serves as a substrate of other coating layers; the titanium dioxide layer has high light transmission and good optical performance and can be used for adjusting the optical characteristics of the coating layer; the TeO2 layer can improve the light transmittance; the upper tantalum oxide layer serves as the outermost layer, mainly plays a role in protection, prevents the coating layer from being eroded by the external environment, such as scraping and chemical corrosion, and can provide certain hardness to enhance the scraping resistance of the cover plate.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a coated cover plate and a liquid crystal display screen that improve light transmittance and hardness. Background Technology

[0002] With the rapid development of technology, the requirements for optical devices and display covers are becoming increasingly stringent, especially the requirements for the light transmittance and hardness of display covers. Traditional glass substrates can no longer meet the high requirements of manufacturers, especially in extreme environments or under high-intensity use, where they are easily scratched and have extremely high light transmittance requirements. If traditional glass substrates are not improved, they will easily affect equipment performance and user experience, and will not be able to meet the ever-increasing quality requirements of manufacturers. Utility Model Content

[0003] The technical problem this invention aims to solve is how to improve the light transmittance and hardness of the cover plate to meet the increasing quality requirements of manufacturing enterprises and avoid affecting equipment performance and user experience.

[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 that improves light transmittance and hardness, comprising a glass substrate and a lower tantalum oxide layer, a titanium dioxide layer, a TeO2 layer, and an upper tantalum oxide layer sequentially stacked on the upper surface of the glass substrate from bottom to top. The thickness of the lower tantalum oxide layer is 50nm-100nm, the thickness of the titanium dioxide layer is 100nm-200nm, the thickness of the TeO2 layer is 50nm-150nm, and the thickness of the upper tantalum oxide layer is 50nm-100nm.

[0006] This utility model provides a liquid crystal display screen, which includes a coated cover plate as described above to improve light transmittance and hardness.

[0007] In a preferred embodiment of the coated cover plate for improving light transmittance and hardness provided by this utility model, a display module is provided below the coated cover plate for improving light transmittance and hardness, and a backlight module is provided below the display module.

[0008] As a preferred embodiment of the coating cover plate for improving light transmittance and hardness provided by this utility model, the backlight module includes a lower frame and a light guide plate. The lower frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate. The bottom plate is provided with at least two material slots, and the excess material of the bottom plate between adjacent material slots forms a reinforcing rib. The bottom plate located inside the side wall extends upward to form a support portion. The height of the support portion is lower than the height of the side wall, and the light guide plate is disposed on the support portion.

[0009] As a preferred embodiment of the coating cover plate for improving light transmittance and hardness provided by this utility model, the edge of the bearing portion is chamfered.

[0010] In a preferred embodiment of the coated cover plate that improves light transmittance and hardness provided by this utility model, the chamfer is a right angle.

[0011] In a preferred embodiment of the coated cover plate that improves light transmittance and hardness provided by this utility model, the chamfer is a rounded corner.

[0012] In a preferred embodiment of the coated cover plate for improving light transmittance and hardness provided by this utility model, the material chute is polygonal in shape.

[0013] As a preferred embodiment of the coated cover plate that improves light transmittance and hardness provided by this utility model, the material chute is hexagonal in shape.

[0014] In a preferred embodiment of the coated cover plate for improving light transmittance and hardness provided by this utility model, the depth of the material extraction groove is 1mm-2mm.

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

[0016] The lower tantalum oxide layer exhibits excellent adhesion, firmly adhering to the glass surface and serving as a base for other coating layers. It also possesses good chemical stability and hardness, enhancing the overall durability of the coating. The titanium dioxide layer boasts high light transmittance and excellent optical properties, allowing for the adjustment of the coating's optical characteristics, such as reflectivity and transmittance. Furthermore, it offers superior UV resistance, effectively protecting internal components from UV damage. The TeO2 layer further enhances light transmittance. The upper tantalum oxide layer, as the outermost layer, primarily provides protection against environmental erosion, such as scratches and chemical corrosion. It also provides a degree of hardness, enhancing the cover plate's scratch resistance. This patented technology, based on the principle of multi-layer coating, constructs a functional cover plate coating layer integrating high light transmittance, scratch resistance, and UV protection by precisely controlling the type, thickness, and arrangement order of the coating materials. The bottom layer, the lower tantalum oxide layer, utilizes its excellent adhesion and chemical stability to provide a solid foundation for the entire coating layer. The middle layer uses titanium dioxide, whose high light transmittance and UV resistance optimize the optical performance of the coating and protect internal components. The functional layer introduces a TeO2 layer to further improve light transmittance and enhance visual effects. The top layer again uses tantalum oxide as a protective layer, effectively resisting external environmental corrosion and ensuring the long-term stability and durability of the coating. Through this multi-layered composite structure design, this patented technology achieves a comprehensive improvement in the performance of glass covers, providing a more reliable and advanced protection solution for electronic 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 improves light transmittance and hardness, as provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of a liquid crystal display screen provided by this utility model.

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

[0021] Figure 4 for Figure 3 Top view.

[0022] Explanation of icon numbers:

[0023] Glass substrate 1; lower tantalum oxide layer 11; titanium dioxide layer 12; TeO2 layer 13; upper tantalum oxide layer 14;

[0024] Cover plate 100; display module 200; backlight module 300; lower frame 2; light guide plate 3; bottom plate 21; side wall 22; material chute 23; reinforcing rib 24; load-bearing part 25. 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 for improving light transmittance and hardness, comprising a glass substrate and a lower tantalum oxide layer, a titanium dioxide layer, a TeO2 layer, and an upper tantalum oxide layer sequentially stacked on the upper surface of the glass substrate from bottom to top. The thickness of the lower tantalum oxide layer is 50nm-100nm, the thickness of the titanium dioxide layer is 100nm-200nm, the thickness of the TeO2 layer is 50nm-150nm, and the thickness of the upper tantalum oxide layer is 50nm-100nm.

[0029] The lower tantalum oxide layer exhibits excellent adhesion, firmly adhering to the glass surface and serving as a base for other coating layers. It also possesses good chemical stability and hardness, enhancing the overall durability of the coating. The titanium dioxide layer boasts high light transmittance and excellent optical properties, allowing for the adjustment of the coating's optical characteristics, such as reflectivity and transmittance. Furthermore, it offers superior UV resistance, effectively protecting internal components from UV damage. The TeO2 layer further enhances light transmittance. The upper tantalum oxide layer, as the outermost layer, primarily provides protection against environmental erosion, such as scratches and chemical corrosion. It also provides a degree of hardness, enhancing the cover plate's scratch resistance. This patented technology, based on the principle of multi-layer coating, constructs a functional cover plate coating layer integrating high light transmittance, scratch resistance, and UV protection by precisely controlling the type, thickness, and arrangement order of the coating materials. The bottom layer, the lower tantalum oxide layer, utilizes its excellent adhesion and chemical stability to provide a solid foundation for the entire coating layer. The intermediate layer uses titanium dioxide, whose high light transmittance and UV resistance optimize the optical performance of the coating and protect internal components. The functional layer incorporates a TeO2 layer to further improve light transmittance and enhance visual appeal. The top layer again uses tantalum oxide as a protective layer, effectively resisting environmental corrosion and ensuring the long-term stability and durability of the coating. Through this multi-layered composite structure design, this patented technology achieves a comprehensive improvement in the performance of glass covers, providing a more reliable and advanced protection solution for electronic products.

[0030] 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.

[0031] Example 1, please refer to Figure 1This invention provides a coated cover plate for improving light transmittance and hardness, comprising a glass substrate 1 and a lower tantalum oxide layer 11, a titanium dioxide layer 12, a TeO2 layer 13, and an upper tantalum oxide layer 14 sequentially stacked on the upper surface of the glass substrate 1 from bottom to top. The lower tantalum oxide layer 11 and the upper tantalum oxide layer 14 both have the chemical formula Ta2O5, the titanium dioxide layer 12 has the chemical formula TiO2, the thickness of the lower tantalum oxide layer 11 is 50nm-100nm, the thickness of the titanium dioxide layer 12 is 100nm-200nm, the thickness of the TeO2 layer 13 is 50nm-150nm, and the thickness of the upper tantalum oxide layer 14 is 50nm-100nm. The lower tantalum oxide layer 11 has good adhesion, firmly adhering to the glass surface and serving as a base for other coating layers. It also possesses good chemical stability and hardness, enhancing the overall durability of the coating layer. The titanium dioxide layer 12 has high light transmittance and good optical properties, which can be used to adjust the optical characteristics of the coating layer, such as reflectivity and transmittance. Furthermore, it has excellent UV resistance, effectively protecting internal components from UV damage. The TeO2 layer 13 improves light transmittance. The upper tantalum oxide layer 14, as the outermost layer, primarily serves a protective function, preventing the coating layer from being corroded by the external environment, such as scratches and chemical corrosion. It also provides a certain degree of hardness, enhancing the scratch resistance of the cover plate 100. This patented technology is based on the principle of multi-layer coating. By precisely controlling the type, thickness, and arrangement order of the coating materials, a functional cover plate 100 coating layer integrating high light transmittance, scratch resistance, and UV protection is constructed. The bottom layer, the lower tantalum oxide layer 11, utilizes its excellent adhesion and chemical stability to provide a solid foundation for the entire coating layer. The intermediate layer uses a titanium dioxide layer 12, which, with its high light transmittance and UV resistance, optimizes the optical performance of the coating and protects internal components. A TeO2 layer 13 is introduced as the functional layer to further improve light transmittance and enhance visual effects. The top layer again uses tantalum oxide as a protective layer, effectively resisting external environmental corrosion and ensuring the long-term stability and durability of the coating. Through this multi-layered composite structure design, this patented technology achieves a comprehensive improvement in the performance of the glass cover 100, providing a more reliable and advanced protection solution for electronic products.

[0032] Example 2, please refer to Figures 2 to 4 The present invention provides a liquid crystal display screen, which includes a coated cover plate 100 for improving light transmittance and hardness as described above, a display module 200 is disposed below the coated cover plate 100 for improving light transmittance and hardness, and a backlight module 300 is disposed below the display module 200.

[0033] Furthermore, the backlight module 300 includes a lower frame 2 and a light guide plate 3. The lower frame 2 includes a base plate 21 and a side wall 22 extending upward from the edge of the base plate 21. At least two material extraction slots 23 are formed downward on the upper surface of the base plate 21. The excess material of the base plate 21 between adjacent material extraction slots 23 forms a reinforcing rib 24. The base plate 21 located inside the side wall 22 extends upward to form a supporting part 25. The supporting part 25 is perpendicular to the base plate 21, and the height of the supporting part 25 is lower than the height of the side wall 22. The light guide plate 3 is disposed on the supporting part 25. Reinforcing ribs 24 are formed between the material extraction grooves 23. These not only prevent injection molding shrinkage and material reduction, but also enhance the strength of the lower frame 2. Since the base plate 21 is also provided with a support part 25, and the light guide plate 3 is supported by the support part 25, and since the support part 25 extends upward from the base plate 21, its height is higher than that of the base plate 21 and the reinforcing ribs 24, so the light guide plate 3 no longer directly contacts the reinforcing ribs 24, thereby preventing the burrs on the reinforcing ribs 24 from scratching the light guide plate 3. When the lower frame 2 is slightly deformed, its height can also prevent the reinforcing ribs 24 from squeezing the light guide plate 3, thus preventing damage to the light guide plate 3. The backlight module 300 provided by this utility model allows the material extraction grooves 23 to be located on the inner surface of the lower frame 2, which makes the backlight module 300 more aesthetically pleasing; it can also prevent injection molding shrinkage, reduce material usage, and enhance the strength of the lower frame 2, while also preventing the reinforcing ribs 24 from damaging the light guide plate 3, thus avoiding damage to the light guide plate 3.

[0034] Furthermore, the edge of the support portion 25 is provided with a chamfer, which can be a right angle or a rounded corner. The right angle and the rounded corner can remove burrs to prevent the burrs of the support portion 25 from scratching the light guide plate 3.

[0035] Furthermore, the material chute 23 is polygonal in shape. More preferably, the material chute 23 is hexagonal in shape, which provides better strength than the conventional rectangular lower frame 2.

[0036] Of course, the structure described in this utility model can also be applied to a backlight module 300 with a light guide plate 3 that is thin at one end and thick at the other. The bottom plate 21 of the lower frame 2 can be inclined. The bearing portion 25 extending upward on the bottom plate 21 also has an inclined surface with the same slope as the bottom plate 21. A material removal groove 23 is provided on the bottom plate 21, which can still prevent the reinforcing rib 24 formed by the material removal groove 23 from damaging the light guide plate 3. It should also fall within the protection scope of this utility model.

[0037] 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.

[0038] 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 that improves light transmittance and hardness, characterized in that, It includes a glass substrate and a lower tantalum oxide layer, a titanium dioxide layer, a TeO2 layer, and an upper tantalum oxide layer, which are sequentially stacked on the upper surface of the glass substrate from bottom to top. The thickness of the lower tantalum oxide layer is 50nm-100nm, the thickness of the titanium dioxide layer is 100nm-200nm, the thickness of the TeO2 layer is 50nm-150nm, and the thickness of the upper tantalum oxide layer is 50nm-100nm.

2. A liquid crystal display screen, characterized in that, It includes the coated cover plate as described in claim 1, which improves light transmittance and hardness.

3. The liquid crystal display screen according to claim 2, characterized in that, A display module is located below the coated cover plate that improves light transmittance and hardness, and a backlight module is located below the display module.

4. The liquid crystal display screen according to claim 3, characterized in that, The backlight module includes a lower frame and a light guide plate. The lower frame includes a base plate and a side wall extending upward from the edge of the base plate. The base plate is provided with at least two material slots. The excess material of the base plate between adjacent material slots forms a reinforcing rib. The base plate located inside the side wall extends upward to form a support portion. The height of the support portion is lower than the height of the side wall. The light guide plate is disposed on the support portion.

5. The liquid crystal display screen according to claim 4, characterized in that, The edge of the bearing part is chamfered.

6. The liquid crystal display screen according to claim 5, characterized in that, The chamfer is a right angle.

7. The liquid crystal display screen according to claim 5, characterized in that, The chamfer is a rounded corner.

8. The liquid crystal display screen according to claim 4, characterized in that, The material feeding trough is polygonal in shape.

9. The liquid crystal display screen according to claim 8, characterized in that, The material chute is hexagonal in shape.

10. The liquid crystal display screen according to claim 4, characterized in that, The depth of the material feeding trough is 1mm-2mm.

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