Coated cover plate capable of improving scratch resistance and corrosion resistance and liquid crystal display screen

Abstract

The utility model discloses a coated cover plate and a liquid crystal display capable of improving scratch resistance and corrosion resistance, the cover plate comprises a glass substrate, and a magnesium fluoride layer, a titanium dioxide layer, a strontium fluoride 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 50nm-100nm, the thickness of the titanium dioxide layer is 50nm-100nm, and the thickness of the strontium fluoride layer is 50nm-100nm. The thickness of the titanium dioxide layer ranges from 100 nm to 200 nm, the thickness of the strontium fluoride layer ranges from 50 nm to 100 nm, and the thickness of the titanium carbide layer ranges from 40 nm to 60 nm. The magnesium fluoride layer is used as a bottom layer, reflection of light on a glass interface is effectively reduced by utilizing the characteristic of low refractive index, and the light transmittance is improved; the titanium dioxide layer is used as a middle layer, so that the light transmission is enhanced, the coating layer is endowed with ultraviolet resistance, and internal components are protected; the strontium fluoride layer is used as a functional layer to further reduce the refractive index and optimize the optical performance; and the titanium carbide layer is used as the top layer, so that solid physical protection is provided for the glass substrate due to excellent hardness and wear resistance of the titanium carbide layer.

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 plating cover plate and liquid crystal display screen of improving anti-scratching and corrosion resistance. BACKGROUND

[0002] With the rapid development of science and technology, the requirements for optical devices and display screen cover plates are increasingly stringent, especially in terms of physical protection. Although traditional glass substrates can meet basic needs, they are easily scratched and corroded under extreme conditions or high-intensity use, affecting device performance and user experience, and reducing product competitiveness. SUMMARY

[0003] The technical problem to be solved by the utility model is how to improve the anti-scratching and corrosion resistance of the cover plate.

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

[0005] To solve the above technical problem, the utility model provides a plating cover plate for improving anti-scratching and corrosion resistance, which comprises a glass substrate and a magnesium fluoride layer, a titanium dioxide layer, a strontium fluoride 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 50-100 nm, the thickness of the titanium dioxide layer is 100-200 nm, the thickness of the strontium fluoride layer is 50-100 nm, and the thickness of the titanium carbide layer is 40-60 nm.

[0006] The utility model provides a liquid crystal display screen, which comprises a backlight module, a TFT module, and the above-mentioned cover plate sequentially stacked from bottom to top.

[0007] As a preferred embodiment of the liquid crystal display screen provided by the utility model, the backlight module comprises a lower iron stand, a glue stand, and a PCB board. The lower iron stand comprises a bottom plate and a side wall extending upward from the edge of the bottom plate. The glue stand is arranged on the upper surface of the bottom plate, and the PCB board is arranged on the lower surface of the bottom plate. At least one baffle is stamped and formed on the top and bottom of the lower surface of the bottom plate. The baffle is perpendicular to the bottom plate. At least one twisted foot is stamped and formed on the left and right sides of the lower surface of the bottom plate. The twisted foot is rotatable, and the PCB board is placed in the space defined by the baffle and the twisted foot.

[0008] As a preferred embodiment of the liquid crystal display screen provided by the utility model, the width of the baffle is 8-12 mm.

[0009] As a preferred embodiment of the liquid crystal display provided by the utility model, the assembly gap between the baffle and the PCB board is 0.3mm to 0.5mm.

[0010] As a preferred embodiment of the liquid crystal display provided by the utility model, the cross section shape of the twisted foot is L type, and the twisted foot comprises a root connected with the bottom plate and a twisted part connected with the root.

[0011] As a preferred embodiment of the liquid crystal display provided by the utility model, the root width of the twisted foot is 4mm to 6mm.

[0012] As a preferred embodiment of the liquid crystal display provided by the utility model, the width of the twisted part of the twisted foot is 4mm to 6mm.

[0013] As a preferred embodiment of the liquid crystal display provided by the utility model, the connection between the root and the inner side of the twisted part is provided with an inner recess.

[0014] As a preferred embodiment of the liquid crystal display provided by the utility model, the inner recess is smoothly transitioned.

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

[0016] The fluorinated magnesium layer has a low refractive index, is commonly used in an anti-reflection film system, can effectively improve the light transmittance and reduce reflection, and as a bottom layer, it can firmly adhere to the glass surface to provide a stable substrate for subsequent coating layers; the titanium dioxide layer not only has high light transmittance, but also can adjust the optical properties of the coating layer, such as reducing reflectivity and increasing transmittance, in addition, its excellent anti-ultraviolet performance can effectively protect the internal components under the glass substrate from ultraviolet damage; the strontium fluoride layer has a lower refractive index, which can further improve the light transmittance and reduce the reflection of light on the glass surface, thereby enhancing the visual effect and user experience; the titanium carbide layer has excellent hardness, wear resistance and chemical stability, and as a top layer, it can significantly improve the scratch resistance and corrosion resistance of the glass substrate. Based on the multi-layer coating design principle, the present application precisely controls the type, thickness and arrangement order of each layer of material to realize the dual optimization of the optical properties and physical protection function of the coating layer. The fluorinated magnesium layer as a bottom layer effectively reduces the reflection of light on the glass interface by utilizing its low refractive property, thereby improving the light transmittance; the titanium dioxide layer as an intermediate layer not only enhances the light transmittance, but also endows the coating layer with anti-ultraviolet ability to protect the internal components; the strontium fluoride layer as a functional layer further reduces the refractive index to optimize the optical properties; and the titanium carbide layer as a top layer provides a solid physical protection for the glass substrate due to its excellent hardness and wear resistance. The synergistic effect between the layers in this multi-layer structure design not only significantly improves the optical properties and durability of the glass substrate, but also ensures its stable performance in complex environments, thereby providing an ideal protection solution for electronic product display screens and other optical devices. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0018] Figure 1 The structure schematic view of the film-coated cover plate provided by the present application is shown.

[0019] Figure 2 The structure schematic view of the liquid crystal display provided by the present application is shown.

[0020] Figure 3 The structure schematic view of the lower iron stand in the back light module is shown.

[0021] Figure 4 The bottom view of Figure 3

[0022] Figure 5 The enlarged view of A in Figure 3 ​​

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Glass substrate 1; Magnesium fluoride layer 11; Titanium dioxide layer 12; Strontium fluoride layer 13; Titanium carbide layer 14;

[0025] Backlight module 100; TFT module 200; Cover plate 300;

[0026] Lower iron stand 2; Glue stand 3; PCB board 4; Bottom plate 21; Side wall 22; Retaining wall 23; Twisted foot 24; Root 241; Twisted part 242; Inner recess 243. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below 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 those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0028] 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 based on 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.

[0029] In addition, the terms "first", "second", "third" are only for description purpose, 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.

[0030] The utility model provides a kind of improve anti-scratching and corrosion resistance of coated cover plate, it includes glass substrate and by from bottom to top sequentially superimposed on the magnesium fluoride layer of glass substrate upper surface, titanium dioxide layer, strontium fluoride layer and titanium carbide layer, the thickness of magnesium fluoride layer is 50nm-100nm, the thickness of titanium dioxide layer is 100nm-200nm, the thickness of strontium fluoride layer is 50nm-100nm, the thickness of titanium carbide layer is 40nm-60nm.

[0031] Magnesium fluoride layer has lower refractive index, commonly used in antireflection film system, can effectively improve light transmittance and reduce reflection, magnesium fluoride layer as bottom layer, it can firmly adhere to glass surface, provide stable substrate for subsequent coating layer;Titanium dioxide layer not only has high light transmittance, can also adjust the optical properties of coating layer, such as reducing reflectivity and increasing transmittance, in addition, its excellent ultraviolet resistance can effectively protect the internal components under glass substrate from ultraviolet damage;Strontium fluoride layer has lower refractive index, can further improve light transmittance, reduce light reflection on glass surface, thereby enhancing visual effect and user experience;Titanium carbide layer has excellent hardness, wear resistance and chemical stability, as top layer, can significantly improve the anti-scratching and corrosion resistance of glass substrate. Based on the design principle of multilayer coating, the type, thickness and arrangement order of each layer material are accurately controlled, to realize the dual optimization of coating layer optical performance and physical protection function. As bottom layer, magnesium fluoride layer effectively reduces light reflection on glass interface by using its low refractive property, improves light transmittance;As intermediate layer, titanium dioxide layer not only enhances light transmittance, but also endows coating layer with ultraviolet resistance, to protect internal components;As functional layer, strontium fluoride layer further reduces refractive index, optimizes optical performance;And as top layer, titanium carbide layer provides firm physical protection for glass substrate with its excellent hardness and wear resistance. This multilayer structure design, synergistic effect between layers, not only significantly improves the optical performance and durability of glass substrate, but also ensures its stable performance in complex environment, provides ideal protection solution for electronic product display screen and other optical devices.

[0032] 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 is 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 reference 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 limitation to the utility model.

[0033] Embodiment 1, please refer to Figure 1The utility model provides a kind of coating cover plate of improving anti-scratching and corrosion resistance, it includes glass substrate 1 and by from below to above sequentially superimposed and set on the magnesium fluoride layer 11 of glass substrate 1 upper surface, titanium dioxide layer 12, strontium fluoride layer 13 and titanium carbide layer 14, the chemical formula of magnesium fluoride layer 11 is MgF2, the chemical formula of titanium dioxide layer 12 is TiO2, the chemical formula of strontium fluoride layer 13 is SrF2, the chemical formula of titanium carbide layer 14 is TiC, the thickness of magnesium fluoride layer 11 is 50nm-100nm, the thickness of titanium dioxide layer 12 is 100nm-200nm, the thickness of strontium fluoride layer 13 is 50nm-100nm, the thickness of titanium carbide layer 14 is 40nm-60nm.Magnesium fluoride layer 11 has lower refractive index, commonly used in antireflection film system, can effectively improve transmittance and reduce reflection, magnesium fluoride layer 11 as bottom layer, it can firmly adhere to glass surface, provide stable substrate for subsequent coating layer;Titanium dioxide layer 12 not only has high transmittance, can also adjust the optical properties of coating layer, such as reducing reflectivity and increasing transmittance, in addition, its excellent ultraviolet resistance can effectively protect the internal components under glass substrate 1 from ultraviolet damage;Strontium fluoride layer 13 has lower refractive index, can further improve transmittance, reduce the reflection of light on glass surface, thereby enhancing visual effect and user experience;Titanium carbide layer 14 has excellent hardness, wear resistance and chemical stability, as top layer, can significantly improve the anti-scratching and corrosion resistance of glass substrate 1.This patent technology is based on multilayer coating design principle, by accurately controlling the type, thickness and arrangement order of each layer material, realizes the double optimization of coating layer optical performance and physical protection function.Magnesium fluoride layer 11 as bottom layer utilizes its low refractive index characteristics, effectively reduces the reflection of light on glass interface, improves transmittance;Titanium dioxide layer 12 as intermediate layer not only enhances transmittance, also endows coating layer with ultraviolet resistance, protects internal components;Strontium fluoride layer 13 as functional layer further reduces refractive index, optimizes optical performance;And titanium carbide layer 14 as top layer then with its excellent hardness and wear resistance, provides firm physical protection for glass substrate 1.This multilayer structure design, synergistic effect between each layer, not only significantly improves the optical performance and durability of glass substrate 1, also ensures its stable performance in complex environment, provides ideal protection solution for electronic product display screen and other optical devices.

[0034] Example 2, please see Figures 2 to 5The utility model provides a kind of LCD, it includes by sequentially stacking from bottom to top the backlight module 100, TFT module 200 and the cover plate 300 as described above in order.The backlight module 100 includes lower iron stand 2, glue frame 3 and PCB board 4, lower iron stand 2 includes bottom plate 21 and the side wall 22 that is extended upwards from the edge of bottom plate 21, glue frame 3 is arranged on the upper surface of bottom plate 21, PCB board 4 is arranged on the lower surface of bottom plate 21, the top and bottom of the lower surface of bottom plate 21 are stamped into at least one retaining wall 23, retaining wall 23 is perpendicular to bottom plate 21, the left side and the right side of the lower surface of bottom plate 21 are stamped into at least one twisted foot 24, in the embodiment, retaining wall 23 has four, the top and bottom of bottom plate 21 are provided with two retaining walls 23, twisted foot 24 has four, the left side and the right side of bottom plate 21 are provided with two twisted feet 24, in other embodiments, the number and position requirement of twisted foot 24 are evenly distributed to reach the limiting and fixed effect, twisted foot 24 can rotate, PCB board 4 is placed in the space defined by retaining wall 23 and twisted foot 24.Due to the top and bottom of the lower surface of bottom plate 21 are stamped into retaining wall 23, the left side and the right side of the lower surface of bottom plate 21 are stamped into twisted foot 24, twisted foot 24 and retaining wall 23 are set on bottom plate 21 by adopting die stamping mode, PCB board 4 is limited by retaining wall 23, PCB board 4 is fixed by twisted foot 24 after rotation, can improve the assembly reliability of PCB board 4 under the premise of not affecting cost, prevent PCB board 4 from falling off.

[0035] Further, the width of the retaining wall 23 is 8mm to 12mm. The assembly gap between the retaining wall 23 and the PCB board 4 is 0.3mm to 0.5mm. The height of the retaining wall 23 is consistent with the thickness of the PCB board 4.

[0036] Further, in order to best match the PCB board 4 and the twisted foot 24, the cross-sectional shape of the twisted foot 24 is L-shaped, and the twisted foot 24 includes a root portion 241 and a twisted portion 242. The root portion 241 is connected to the bottom plate 21, and the twisted portion 242 is connected to the root portion 241.

[0037] Further, the width of the root portion 241 of the twisted foot 24 is 4mm to 6mm to ensure that the root portion 241 has sufficient strength.

[0038] Further, the width of the twisted portion 242 of the twisted foot 24 is 4mm to 6mm to ensure that the twisted foot 24 has sufficient length to press on the PCB board 4 after being twisted. The assembly gap between the twisted portion 242 and the PCB board 4 is 0.3mm to 0.5mm.

[0039] Further, an inner recess 243 is formed at the connection between the root portion 241 and the inner side of the twisted portion 242. The inner recess 243 is smoothly transitioned to avoid stress concentration.

[0040] Further, the depth of the inner recess 243 is 0.5mm to 1.0mm, and the distance between the deepest point of the inner recess 243 and the lower surface of the root 241 is 1.5mm to 2.5mm. This avoids the problem of the width of the position being too thin and the torsion foot 24 being easily broken when being twisted. The assembly gap between the torsion foot 24 and the PCB 4 is 0.3mm to 0.5mm.

[0041] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Obviously, the above-described embodiments are only part of the embodiments of the present application, not 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 on the 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 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 specific embodiments, or make equivalent replacements to some technical features. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of the present application patent protection.

Claims

1. A coated cover plate having improved scratch resistance and corrosion resistance, characterized in that, The glass substrate and the magnesium fluoride layer, the titanium dioxide layer, the strontium fluoride layer and the titanium carbide layer which are sequentially stacked on the upper surface of the glass substrate from bottom to top, wherein the thickness of the magnesium fluoride layer is 50-100 nm, the thickness of the titanium dioxide layer is 100-200 nm, the thickness of the strontium fluoride layer is 50-100 nm, and the thickness of the titanium carbide layer is 40-60 nm.

2. A liquid crystal display panel, characterized by comprising: The cover plate of claim 1 is sequentially stacked on the backlight module, the TFT module and the cover plate from bottom to top.

3. The liquid crystal display of claim 2, wherein, The backlight module comprises a lower iron frame, a glue frame and a PCB board, the lower iron frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, the glue frame is arranged on the upper surface of the bottom plate, the PCB board is arranged on the lower surface of the bottom plate, at least one baffle is formed on the top and bottom of the lower surface of the bottom plate by stamping, the baffle is perpendicular to the bottom plate, at least one twisted foot is formed on the left and right sides of the lower surface of the bottom plate by stamping, the twisted foot is rotatable, and the PCB board is placed in the space defined by the baffle and the twisted foot.

4. The liquid crystal display panel of claim 3, wherein, The width of the baffle is 8-12 mm.

5. The liquid crystal display of claim 3, wherein, The assembly gap between the baffle and the PCB board is 0.3-0.5 mm.

6. The liquid crystal display of claim 3, wherein, The cross-sectional shape of the twisted foot is L-shaped, and the twisted foot comprises a root connected with the bottom plate and a twisted part connected with the root.

7. The liquid crystal display of claim 6, wherein, The width of the root of the twisted foot is 4-6 mm.

8. The liquid crystal display of claim 6, wherein, The width of the twisted part of the twisted foot is 4-6 mm.

9. The liquid crystal display of claim 6, wherein, An inner recess is formed at the connection between the inner side of the root and the twisted part.

10. The liquid crystal display of claim 9, wherein, The inner recess is smoothly transitioned.

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