Novel film-coated cover plate with electromagnetic shielding function and vehicle-mounted liquid crystal display screen

Abstract

The utility model discloses a novel film-coated cover plate with an electromagnetic shielding function and a vehicle-mounted liquid crystal display screen, the cover plate comprises a glass substrate, and a silicon dioxide layer, a titanium dioxide layer, a strontium fluoride layer and a nanometer copper wire grid layer which are sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the silicon dioxide layer is 50nm-100nm, and the thickness of the titanium dioxide 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 nanometer copper wire grid layer ranges from 20 nm to 40 nm. The optimization of the performance of the coating layers of the cover plate is realized by accurately controlling the material selection and thickness distribution of each coating layer. By means of the layered structure design, comprehensive upgrading of the cover plate coating layer in the aspects of optical performance, physical protection and electromagnetic shielding is achieved, and powerful technical support is provided for development of electronic display equipment. The light transmittance, ultraviolet resistance and electromagnetic shielding capability of the cover plate are improved, so that the user experience is improved, the service life of equipment is prolonged, and the competitiveness of a product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of liquid crystal display technical field, more specifically, it relates to a novel coating cover plate with electromagnetic shielding function and vehicle-mounted liquid crystal display screen. BACKGROUND

[0002] With the rapid development of electronic display technology, the optical performance and physical protection requirements of glass cover plate are increasingly improved. Although traditional glass cover plate has certain transparency and protection, it has limitations in high transmittance, ultraviolet resistance, electromagnetic shielding and durability. Especially in smart phones, tablet computers, automotive displays and wearable devices, these performances are directly related to user experience and device life. SUMMARY

[0003] The technical problem to be solved by the utility model is how to improve the transmittance, ultraviolet resistance and electromagnetic shielding capacity of the cover plate, thereby improving user experience and device life, and further improving the competitiveness of products.

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

[0005] To solve the above technical problem, the utility model provides a novel coating cover plate with electromagnetic shielding function, which comprises a glass substrate and a silica layer, a titanium dioxide layer, a strontium fluoride layer and a nano copper wire grid layer sequentially stacked on the upper surface of the glass substrate from bottom to top. The thickness of the silica 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 nano copper wire grid layer is 20-40 nm.

[0006] The utility model provides a vehicle-mounted liquid crystal display screen, which comprises the novel coating cover plate with electromagnetic shielding function as described above, and a TFT module is arranged below the glass substrate. The TFT module has a flexible circuit board leading outwards, and the flexible circuit board is connected to a printed circuit board.

[0007] As a preferred embodiment of the vehicle-mounted liquid crystal display screen provided by the utility model, a first connecting device is arranged on the upper surface of the printed circuit board, a second connecting device is arranged on the lower surface of the flexible circuit board, the first connecting device is connected to the second connecting device, a left buffer groove is formed in the left side of the flexible circuit board, a right buffer groove is formed in the right side of the flexible circuit board, and the left buffer groove and the right buffer groove penetrate from the upper surface to the lower surface of the flexible circuit board.

[0008] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0009] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0010] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0011] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0012] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0013] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

[0014] As a preferred embodiment of the vehicle-mounted liquid crystal display provided by the utility model, the left buffer groove and the right buffer groove are staggered.

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

[0016] The silicon dioxide layer has good adhesion and chemical stability, can be firmly attached to the glass surface as the substrate of other coating layers, and its high light transmittance and anti-reflection performance also help to improve the optical effect of the entire coating layer; 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 cover plate from ultraviolet damage; in this structure, the strontium fluoride layer can significantly improve the light transmittance and reduce the reflection of light on the glass surface, thereby further improving the visual effect and user experience; the nano copper wire grid can be used as a film layer with electromagnetic shielding function. The patent technology realizes the optimization of the performance of the cover plate coating layer by precisely controlling the material selection and thickness distribution of each coating layer. The bottom layer uses silicon dioxide, which has excellent adhesion and chemical stability, to ensure the close combination of the coating layer and the glass substrate, and lays a solid foundation for the entire coating system. The middle layer introduces titanium dioxide, which has high light transmittance and anti-ultraviolet properties, not only enhances the optical performance of the coating layer, but also effectively resists ultraviolet damage. The functional layer uses strontium fluoride, which has unique physical and chemical properties that significantly improve light transmittance, reduce light reflection, and improve visual experience. The outermost nano copper wire grid serves as an electromagnetic shielding layer, effectively blocking external electromagnetic interference and protecting the normal operation of internal electronic components. Through this layered structure design, the patent technology realizes the overall upgrade of the cover plate coating layer in terms of optical performance, physical protection and electromagnetic shielding, providing strong technical support for the development of electronic display devices. The light transmittance, anti-ultraviolet and electromagnetic shielding capacity of the cover plate are improved, thereby improving user experience and equipment life, and further improving the competitiveness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. 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 structural schematic diagram of the novel coated cover plate with electromagnetic shielding function is provided.

[0019] Figure 2 The structural schematic diagram of the vehicle-mounted liquid crystal display screen is provided.

[0020] Figure 3 The Figure 2 The cooperation structure schematic diagram of the flexible circuit board and the printed circuit board is provided.

[0021] Figure 4 The Figure 3A schematic view of a structure of a flexible printed circuit board.

[0022] Figure 5 A schematic view of a structure of a flexible printed circuit board. Figure 3 A schematic view of a structure of a flexible printed circuit board.

[0023] Figure 6 A schematic view of a structure of a flexible printed circuit board. Figure 3 A schematic view of a structure of a flexible printed circuit board.

[0024] Figure 7 A schematic view of a structure of a flexible printed circuit board. Figure 3 A schematic view of a structure of a flexible printed circuit board.

[0025] Figure 8 A schematic view of a structure of a flexible printed circuit board. Figure 7 A schematic view of a structure of a flexible printed circuit board.

[0026] Figure 9 A schematic view of a structure of a flexible printed circuit board.

[0027] Figure 10 A schematic view of a structure of a flexible printed circuit board. Figure 7 A schematic view of a structure of a flexible printed circuit board.

[0028] BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Glass substrate 1; silicon dioxide layer 11; titanium dioxide layer 12; strontium fluoride layer 13; nanometer copper wire grid layer 14; TFT module 2; flexible printed circuit board 3; printed circuit board 4; first connecting device 5; second connecting device 6; left buffer groove 31; right buffer groove 32; buffer semicircle 33. DETAILED DESCRIPTION

[0030] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0031] In the description of the present application, it should be understood that the orientations or positional relationships indicated by 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 are based on the orientations or positional relationships 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 referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood to indicate or imply relative importance or imply the number of the indicated technical features. Therefore, the features defined as "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0033] The utility model provides a novel coating cover plate with electromagnetic shielding function, it includes glass substrate and from below to above sequentially superimposed setting silica layer, titanium dioxide layer, strontium fluoride layer and nanometer copper wire grid layer on the upper surface of glass substrate, the thickness of silica 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 nanometer copper wire grid layer is 20nm 40nm.

[0034] Silica layer has good adhesion and chemical stability, can firmly adhere to the glass surface, as the base of other coating layers, at the same time, its high light transmittance and antireflection performance also help to improve the optical effect of the whole coating layer; 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 ultraviolet resistance can effectively protect the internal components under the glass cover plate from ultraviolet damage; In this structure, strontium fluoride layer can significantly improve the light transmittance and reduce the reflection of light on the glass surface, thereby further improving the visual effect and user experience; Nanometer copper wire grid can be used as a film layer with electromagnetic shielding function. The present patent technology realizes the optimization of the performance of the cover plate coating layer by precisely controlling the material selection and thickness distribution of each coating layer. The bottom layer uses silica, which has excellent adhesion and chemical stability, to ensure the close combination of the coating layer and the glass substrate, laying a solid foundation for the whole coating system. The middle layer introduces titanium dioxide, which has high light transmittance and ultraviolet resistance, not only enhances the optical performance of the coating layer, but also effectively resists ultraviolet damage. The functional layer uses strontium fluoride, which has unique physical and chemical properties, significantly improves the light transmittance, reduces light reflection and improves the visual experience. The outermost nanometer copper wire grid acts as an electromagnetic shielding layer, effectively blocking external electromagnetic interference and protecting the normal operation of internal electronic components. Through this layered structure design, the present patent technology realizes the comprehensive upgrade of the cover plate coating layer in terms of optical performance, physical protection and electromagnetic shielding, providing strong technical support for the development of electronic display devices. The light transmittance, ultraviolet resistance and electromagnetic shielding ability of the cover plate are improved, thereby improving user experience and equipment life, and further improving product competitiveness.

[0035] For 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 in conjunction with the drawings. The embodiments described below in conjunction with the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation on the present application.

[0036] Embodiment 1, please refer to Figure 1 The novel film-coated cover plate with electromagnetic shielding function provided by the present application comprises a glass substrate 1 and a silica layer 11, a titanium dioxide layer 12, a strontium fluoride layer 13 and a nano copper wire grid layer 14 sequentially stacked on the upper surface of the glass substrate 1 from bottom to top. The thickness of the silica layer 11 is 50-100 nm, the thickness of the titanium dioxide layer 12 is 100-200 nm, the thickness of the strontium fluoride layer 13 is 50-100 nm, and the thickness of the nano copper wire grid layer 14 is 20-40 nm. The silica layer 11 has good adhesion and chemical stability, can be firmly attached to the glass surface, and serves as the substrate for other film-coated layers. At the same time, its high light transmittance and anti-reflection performance also help to improve the optical effect of the entire film-coated layer. The titanium dioxide layer 12 not only has high light transmittance, but also can adjust the optical properties of the film-coated layer, such as reducing reflectivity and increasing transmittance. In addition, its excellent ultraviolet resistance can effectively protect the internal components under the glass cover plate from ultraviolet damage. In this structure, the strontium fluoride layer 13 can significantly improve the light transmittance and reduce the reflection of light on the glass surface, thereby further improving the visual effect and user experience. The nano copper wire grid can serve as a film layer with electromagnetic shielding function. The present patent technology realizes the optimization of the performance of the cover plate film-coated layer by precisely controlling the material selection and thickness distribution of each film-coated layer. The bottom layer uses silica, which has excellent adhesion and chemical stability, to ensure the close combination of the film-coated layer and the glass substrate 1, laying a solid foundation for the entire film-coated system. The middle layer introduces titanium dioxide, which has high light transmittance and ultraviolet resistance, not only enhancing the optical performance of the film-coated layer, but also effectively resisting ultraviolet damage. The functional layer uses strontium fluoride, which has unique physical and chemical properties that significantly improve light transmittance, reduce light reflection, and improve visual experience. The outermost nano copper wire grid serves as an electromagnetic shielding layer, effectively blocking external electromagnetic interference and protecting the normal operation of internal electronic components. Through this layered structure design, the present patent technology realizes the comprehensive upgrade of the cover plate film-coated layer in terms of optical performance, physical protection and electromagnetic shielding, providing strong technical support for the development of electronic display devices. The light transmittance, ultraviolet resistance and electromagnetic shielding ability of the cover plate are improved, thereby improving user experience and equipment life, and further improving the competitiveness of the product.

[0037] Embodiment 2, please refer to Figure 2 , the utility model provides a vehicle-mounted liquid crystal display screen, it includes the novel film-coated cover plate with electromagnetic shielding function as above-mentioned, the lower glass substrate 1 is provided with TFT module 2, TFT module 2 leads out the flexible circuit board 3 outward, the flexible circuit board 3 is connected with printed circuit board 4.

[0038] Please refer to Figures 3 to 6 , further, the upper surface of printed circuit board 4 is provided with first connecting device 5, the lower surface of flexible circuit board 3 is provided with second connecting device 6, first connecting device 5 is connected with second connecting device 6, the left side of flexible circuit board 3 is opened to right and is provided with left buffer groove 31, the right side of flexible circuit board 3 is opened to left and is provided with right buffer groove 32, left buffer groove 31 and right buffer groove 32 all penetrate from the upper surface to the lower surface of flexible circuit board 3, that is, left buffer groove 31 and right buffer groove 32 all punch from top to bottom or from bottom to top, so that flexible circuit board 3 can be bent and deformed at left buffer groove 31 and right buffer groove 32. Because the left side of flexible circuit board 3 is opened to right and is provided with left buffer groove 31, the right side of flexible circuit board 3 is opened to left and is provided with right buffer groove 32, and left buffer groove 31 and right buffer groove 32 all penetrate from the upper surface to the lower surface of flexible circuit board 3, when printed circuit board 4 and flexible circuit board 3 occur relative displacement, the flexible circuit board 3 at left buffer groove 31 and right buffer groove 32 occurs displacement or deformation, and the connector at first connecting device 5 and second connecting device 6 does not occur displacement, thereby avoiding the connector from falling off printed circuit board 4, and further improving the connection reliability of product and the competitiveness of product.

[0039] Please refer to Figure 7 , further, left buffer groove 31 and right buffer groove 32 are staggered to improve the strength of flexible circuit board 3 and reduce the wiring difficulty of flexible circuit board 3.

[0040] Embodiment 3, please refer to Figure 3 , Figure 4 , Figure 8 And Figure 9 , as the further optimization scheme of embodiment 1, in the embodiment, the two sides of the bottom edge of left buffer groove 31 and right buffer groove 32 are provided with buffer semicircle 33, so that when vibration occurs displacement, the displacement of the display screen at flexible circuit board 3 is buffered by buffer semicircle 33 and cannot directly pull first connecting device 5 and second connecting device 6, thereby improving the connection reliability.

[0041] Please refer to Figure 3 , Figure 4 And Figure 10Further, the bottom edges of the left and right buffer grooves 31 and 32 are provided with chamfers, which are inverted right angles or inverted round angles, and have the same effect as the buffer semicircles 33, which are to buffer displacement.

[0042] Further, the first connecting device 5 is a connector socket, and the second connecting device 6 is a connector plug, and the connector socket and the connector plug are generally rigidly connected, and such a structure most needs buffering, and the structure provided by the utility model is very suitable for the structure of the connector socket and the connector plug.

[0043] Further, the left and right buffer grooves 31 and 32 are equal in length.

[0044] Further, the left and right buffer grooves 31 and 32 are multiple to share deformation pressure, and more preferably, the left and right buffer grooves 31 and 32 are equal in number.

[0045] In the utility model, unless another definite provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or be integrated; can be mechanical connection, or electrical connection or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the communication or interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the above terms in the utility model can be understood according to the specific meaning of the specific circumstances.

[0046] 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 conversely, the purpose of providing these embodiments is to make 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 specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A novel coated cover plate having electromagnetic shielding function, characterized in that, It includes a glass substrate and a silica layer, a titanium dioxide layer, a strontium fluoride layer and a nano copper wire grid layer sequentially stacked on the upper surface of the glass substrate from bottom to top, the thickness of the silica 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 nano copper wire grid layer is 20-40 nm.

2. A liquid crystal display screen for a vehicle, characterized by comprising: It includes the novel coated cover plate with electromagnetic shielding function of claim 1, a TFT module is arranged below the glass substrate, the TFT module has a flexible circuit board led out, and the flexible circuit board is connected with a printed circuit board.

3. The on-vehicle liquid crystal display according to claim 2, wherein The upper surface of the printed circuit board is provided with a first connecting device, the lower surface of the flexible circuit board is provided with a second connecting device, the first connecting device is connected with the second connecting device, the left side of the flexible circuit board is provided with a left buffer groove opened to the right, the right side of the flexible circuit board is provided with a right buffer groove opened to the left, and the left buffer groove and the right buffer groove penetrate from the upper surface to the lower surface of the flexible circuit board.

4. The on-vehicle liquid crystal display according to claim 3, wherein The left buffer groove and the right buffer groove are arranged staggered.

5. The on-vehicle liquid crystal display according to claim 3, wherein The left buffer groove and the right buffer groove are provided with buffer semicircles on both sides of the bottom edge.

6. The on-vehicle liquid crystal display according to claim 3, wherein The left buffer groove and the right buffer groove are provided with chamfers on the bottom edge.

7. The on-vehicle liquid crystal display according to claim 6, wherein The chamfer is an inverted right angle or an inverted round angle.

8. The on-vehicle liquid crystal display according to claim 3, wherein The first connecting device is a connector socket, and the second connecting device is a connector plug.

9. The on-vehicle liquid crystal display according to claim 3, wherein The length of the left buffer groove and the right buffer groove is equal.

10. The on-vehicle liquid crystal display according to claim 3, wherein The left buffer groove and the right buffer groove are multiple.

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