Novel film-coated cover plate capable of improving interlayer binding force and liquid crystal display screen

Abstract

The utility model discloses a novel film-coated cover plate and a liquid crystal display capable of improving interlayer binding force, the novel film-coated cover plate capable of improving interlayer binding force comprises a glass cover plate, an aluminum oxynitride layer, a beryllium oxide layer and an antimony sulfide layer, the aluminum oxynitride layer, the beryllium oxide layer and the antimony sulfide layer are sequentially arranged on the upper surface of the glass cover plate from bottom to top, the thickness of the aluminum oxynitride layer is 10nm-30nm, and the thickness of the antimony sulfide layer is 10nm-30nm. The thickness of the beryllium oxide layer ranges from 20 nm to 50 nm, and the thickness of the antimony sulfide layer ranges from 20 nm to 35 nm. The antimony sulfide, the beryllium oxide and the aluminum oxynitride are sequentially deposited on the surface of the glass cover plate by accurately controlling a coating process, so that a layered structure with a specific function is formed. The aluminum oxynitride layer is used as a bottom layer, has excellent mechanical strength and chemical stability, and is used as an adhesion layer to ensure firm combination of the whole coating layer; the beryllium oxide layer is used as an intermediate layer to adjust the thermal performance and the electrical performance of the coating layer by using the high thermal conductivity and the good electrical insulating property of the beryllium oxide layer, and is also used as a transition layer to enhance the interlayer binding force; and the antimony sulfide layer has an anti-reflection effect.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a novel coated cover plate and liquid crystal display screen that improves interlayer bonding strength. Background Technology

[0002] With the rapid development of technology, glass covers are increasingly widely used in various display electronic devices, and the performance requirements for them are also increasing. Traditional glass covers can no longer meet the comprehensive requirements for interlayer bonding strength. Therefore, developing a new multilayer coating technology to enhance the interlayer bonding strength of glass covers and optimize the overall performance of the coating layer has become an urgent need in the industry. Utility Model Content

[0003] The technical problem to be solved by this invention is how to enhance the interlayer bonding force of the glass cover and optimize the overall performance of the coating layer.

[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 novel coated cover plate that improves interlayer bonding strength. It includes a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer, and an antimony sulfide layer sequentially disposed on the upper surface of the glass cover plate from bottom to top. The thickness of the aluminum oxynitride layer is 10nm-30nm, the thickness of the beryllium oxide layer is 20nm-50nm, and the thickness of the antimony sulfide layer is 20nm-35nm.

[0006] This utility model provides a liquid crystal display screen, which includes a novel coated cover plate as described above to improve interlayer adhesion.

[0007] As a preferred embodiment of the liquid crystal display screen provided by this utility model, it includes a backlight module, a display module and the glass cover plate stacked sequentially from bottom to top.

[0008] In a preferred embodiment of the liquid crystal display screen provided by this utility model, the backlight module includes a lower frame, 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, and a reinforcing rib is formed between adjacent material slots. 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, and a light guide plate is provided on the support portion.

[0009] In a preferred embodiment of the liquid crystal display screen provided by this utility model, the edge of the supporting part is chamfered.

[0010] In a preferred embodiment of the liquid crystal display screen provided by this utility model, the material feeding groove is polygonal in shape.

[0011] In a preferred embodiment of the liquid crystal display screen provided by this utility model, the material feeding groove is hexagonal in shape.

[0012] In a preferred embodiment of the liquid crystal display screen provided by this utility model, a double-sided adhesive is provided on one side of the upper surface of the light guide plate, and at least one step is formed on the double-sided adhesive. The surface of the step is adhesive. An optical film assembly is provided on the light guide plate, and the optical film assembly includes at least one optical film. The optical film is disposed on the step of the double-sided adhesive, and the number of steps corresponds to the number of optical films.

[0013] In a preferred embodiment of the liquid crystal display screen provided by this utility model, the double-sided adhesive includes a superimposed layer and an adhesive layer, the superimposed layer having the step, and the adhesive layer being disposed on the step.

[0014] In a preferred embodiment of the liquid crystal display screen provided by this utility model, a boss is provided on the upper surface of the light guide plate, and the boss is used to position the double-sided adhesive.

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

[0016] By using antimony sulfide, beryllium oxide, and aluminum oxynitride to coat the front of a glass cover, a multi-layered coating with unique properties can be formed. The aluminum oxynitride layer acts as an adhesion layer, enhancing the adhesion of subsequent coatings to the glass cover. Aluminum oxynitride possesses good mechanical strength and chemical stability, helping to ensure the stability and durability of the entire coating layer. The beryllium oxide layer 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, and can serve as a transition layer between the aluminum oxynitride and antimony sulfide layers, improving interlayer adhesion and optimizing the overall performance of the coating layer. The antimony sulfide layer, as the outermost layer, increases light transmittance. This patented technology is based on the latest research results in materials science. Through precise control of the coating process, antimony sulfide, beryllium oxide, and aluminum oxynitride are sequentially deposited on the surface of the glass cover to form a layered structure with specific functions. The aluminum oxynitride layer serves as the bottom layer, utilizing its excellent mechanical strength and chemical stability, and also acts as an adhesion layer to ensure a strong bond throughout the entire coating layer. The beryllium oxide layer serves as the intermediate layer, utilizing its high thermal conductivity and good electrical insulation to adjust the thermal and electrical properties of the coating layer, while also acting as a transition layer to enhance interlayer bonding. The antimony sulfide layer, on the other hand, has an antireflective effect. Attached Figure Description

[0017] In order to more clearly illustrate the solutions in this application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This utility model provides a structural schematic diagram of a novel coated cover plate for improving interlayer bonding.

[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 after the light guide plate is hidden.

[0022] Figure 5 This is a schematic diagram of the improved structure at the light guide plate.

[0023] Figure 6 for Figure 5 A schematic diagram of the improved structure.

[0024] Description of Figure Numbers:

[0025] Glass cover plate 1; aluminum oxynitride layer 11; beryllium oxide layer 12; antimony sulfide layer 13;

[0026] Backlight module 2; Display module 3;

[0027] 4. Lower frame; 41. Base plate; 42. Side wall; 43. Material chute; 44. Reinforcing rib; 45. Bearing part; 5. Light guide plate; 6. Double-sided adhesive; 61. Step; 7. Optical film group; 62. Overlay layer; 63. Adhesive layer; 51. Boss. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] This utility model provides a novel coated cover plate for improving interlayer bonding, comprising a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer, and an antimony sulfide layer sequentially disposed on the upper surface of the glass cover plate from bottom to top. The thickness of the aluminum oxynitride layer is 10nm-30nm, the thickness of the beryllium oxide layer is 20nm-50nm, and the thickness of the antimony sulfide layer is 20nm-35nm.

[0032] By using antimony sulfide, beryllium oxide, and aluminum oxynitride to coat the front of a glass cover, a multi-layered coating with unique properties can be formed. The aluminum oxynitride layer acts as an adhesion layer, enhancing the adhesion of subsequent coatings to the glass cover. Aluminum oxynitride possesses good mechanical strength and chemical stability, helping to ensure the stability and durability of the entire coating layer. The beryllium oxide layer 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, and can serve as a transition layer between the aluminum oxynitride and antimony sulfide layers, improving interlayer adhesion and optimizing the overall performance of the coating layer. The antimony sulfide layer, as the outermost layer, increases light transmittance. This patented technology is based on the latest research results in materials science. Through precise control of the coating process, antimony sulfide, beryllium oxide, and aluminum oxynitride are sequentially deposited on the surface of the glass cover to form a layered structure with specific functions. The aluminum oxynitride layer serves as the bottom layer, utilizing its excellent mechanical strength and chemical stability, and also acts as an adhesion layer to ensure a strong bond throughout the entire coating layer. The beryllium oxide layer serves as the intermediate layer, utilizing its high thermal conductivity and good electrical insulation to adjust the thermal and electrical properties of the coating layer, while also acting as a transition layer to enhance interlayer bonding. The antimony sulfide layer, on the other hand, has an antireflective effect.

[0033] 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.

[0034] Example 1, please refer to Figure 1 This invention provides a novel coated cover plate for improving interlayer adhesion. It includes 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 an antimony sulfide layer 13. The thickness of the aluminum oxynitride layer 11 is 10nm-30nm, the thickness of the beryllium oxide layer 12 is 20nm-50nm, and the thickness of the antimony sulfide layer 13 is 20nm-35nm. By using the chemical substances antimony sulfide, beryllium oxide, and aluminum oxynitride to coat the front surface of the glass cover plate 1, a multi-layered coating with unique properties can be formed. The aluminum oxynitride layer 11 serves as an adhesion layer, enhancing the adhesion of subsequent coatings to the glass cover plate 1. Aluminum oxynitride (ANO) possesses excellent mechanical strength and chemical stability, contributing to the stability and durability of the entire coating layer. Beryllium oxide layer 12 primarily regulates the thermal and electrical properties of the coating layer; it exhibits high thermal conductivity, good electrical insulation, and certain chemical stability. It serves as a transition layer between ANO and antimony sulfide layers 11 and 13, enhancing interlayer adhesion and optimizing the overall performance of the coating layer. Antimony sulfide layer 13, as the outermost layer, increases light transmittance. This patented technology, based on the latest research in materials science, precisely controls the coating process to sequentially deposit antimony sulfide, beryllium oxide, and ANO on the surface of the glass cover plate 1, forming a layered structure with specific functions. ANO layer 11, as the bottom layer, utilizes its excellent mechanical strength and chemical stability, and acts as an adhesion layer to ensure a strong bond throughout the coating layer. Beryllium oxide layer 12, as the intermediate layer, utilizes its high thermal conductivity and good electrical insulation to regulate the thermal and electrical properties of the coating layer, while also serving as a transition layer to enhance interlayer adhesion. Antimony sulfide has an anti-reflective effect.

[0035] Example 2, please refer to Figure 2 The present invention provides a liquid crystal display screen, which includes a backlight module 2, a display module 3, and a novel coated cover plate as described above that improves interlayer bonding, which are stacked sequentially from bottom to top.

[0036] Further, see Figure 3 and Figure 4The backlight module 2 includes a lower frame 4, which includes a base plate 41 and a side wall 42 extending upward from the edge of the base plate 41. The base plate 41 is provided with at least two material slots 43, and a reinforcing rib 44 is formed between adjacent material slots 43. The base plate 41 located inside the side wall 42 extends upward to form a support portion 45, which is perpendicular to the base plate 41. The height of the support portion 45 is lower than the height of the side wall 42. A light guide plate 5 is provided on the support portion 45. Reinforcing ribs 44 are formed between the material extraction grooves 43. These not only prevent injection molding shrinkage and material reduction, but also enhance the strength of the lower frame 4. Since the base plate 41 is also provided with a support part 45, and the light guide plate 5 is supported by the support part 45, and since the support part 45 extends upward from the base plate 41, its height is higher than that of the base plate 41 and the reinforcing ribs 44, so the light guide plate 5 no longer directly contacts the reinforcing ribs 44, thereby preventing the burrs on the reinforcing ribs 44 from scratching the light guide plate 5. When the lower frame 4 is slightly deformed, its height can also prevent the reinforcing ribs 44 from squeezing the light guide plate 5 and preventing damage to the light guide plate 5. The backlight module 2 provided by this utility model allows the material extraction grooves 43 to be located on the inner surface of the lower frame 4, which can make the backlight module 2 more beautiful; it can also prevent injection molding shrinkage, reduce material usage, and enhance the strength of the lower frame 4, while also preventing the reinforcing ribs 44 from damaging the light guide plate 5 and avoiding damage to the light guide plate 5.

[0037] Furthermore, the edge of the support portion 45 is provided with a chamfer, which can be a right angle or a rounded corner, to prevent the burrs of the support portion 45 from scratching the light guide plate 5.

[0038] Furthermore, the material chute 43 is polygonal in shape. More preferably, the material chute 43 is hexagonal in shape, which provides better strength than the conventional rectangular lower frame 4.

[0039] Of course, the structure of this utility model can also be applied to a backlight module 2 with a light guide plate 5 that is thin at one end and thick at the other. The bottom plate 41 of the lower frame 4 can be inclined. The bearing part 45 extending upward on the bottom plate 41 also has an inclined surface with the same slope as the bottom plate 41. A material removal groove 43 is provided on the bottom plate 41, which can still prevent the reinforcing rib 44 formed by the material removal groove 43 from damaging the light guide plate 5. It should also fall within the protection scope of this utility model.

[0040] Please see Figure 5 and Figure 6Furthermore, a double-sided adhesive 6 is provided on one side of the upper surface of the light guide plate 5. The lower surface of the double-sided adhesive 6 is adhesive and is fixed to the light guide plate 5. At least one step 61 is formed on the double-sided adhesive 6, and the surface of the step 61 is adhesive. An optical film assembly 7 is provided on the light guide plate 5, and the optical film assembly 7 is disposed on the double-sided adhesive 6. The optical film assembly 7 includes at least one optical film, and the optical film is disposed on the step 61 of the double-sided adhesive 6. The number of steps 61 corresponds to the number of optical films. The height of each step 61 is greater than or equal to the height of each optical film. In this embodiment, the optical film assembly 7 is preferably a diffusion film, a lower brightness enhancement film, and an upper brightness enhancement film stacked sequentially. The steps 61 are preferably three, corresponding to the diffusion film, the lower brightness enhancement film, and the upper brightness enhancement film. Because the surface of step 61 is adhesive, it can fix the optical film to the surface of step 61, avoiding displacement and noise; the double-sided adhesive 6 can be completed by the die-cutting factory, and the assembly only requires one application, which can be automated and improve production efficiency; it also avoids the problems of optical film not sticking and bright lines caused by setting step 61 on light guide plate 5; the mold manufacturing of light guide plate 5 is also simpler, and the light emission effect is easier to handle; the distance between double-sided adhesive 6 and the visible area of ​​display module 3 can be set smaller.

[0041] Furthermore, the double-sided adhesive 6 includes a superimposed layer 62 and an adhesive layer 63. The superimposed layer 62 forms a step 61, and the adhesive layer 63 is disposed on the step 61. The superimposed layer 62 can be composed of multiple layers of varying lengths to form the step 61. The height of each layer of the multi-layer structure can be designed according to the height of the optical film, thereby ensuring that the height of the double-sided adhesive 6 is consistent with the height of the optical film.

[0042] Furthermore, the material of the superimposed layer 62 is preferably a thin film material, and more preferably, the material is PET.

[0043] Furthermore, the upper surface of the light guide plate 5 is provided with a boss 51, which is used to position the double-sided adhesive 6, thereby further improving assembly efficiency.

[0044] 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.

[0045] 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 novel coated cover plate for improving interlayer adhesion, characterized in that, It includes a glass cover plate and an aluminum oxynitride layer, a beryllium oxide layer, and an antimony sulfide layer arranged sequentially from bottom to top on the upper surface of the glass cover plate. The thickness of the aluminum oxynitride layer is 10nm-30nm, the thickness of the beryllium oxide layer is 20nm-50nm, and the thickness of the antimony sulfide layer is 20nm-35nm.

2. A liquid crystal display screen, characterized in that, It includes the novel coated cover plate for improving interlayer adhesion as described in claim 1.

3. The liquid crystal display screen according to claim 2, characterized in that, It includes a backlight module, a display module, and a glass cover plate stacked sequentially from bottom to top.

4. The liquid crystal display screen according to claim 3, characterized in that, The backlight module includes a lower frame, which 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, and a reinforcing rib is formed between adjacent material slots. The base plate located inside the side wall extends upward to form a support portion, the height of which is lower than the height of the side wall. A light guide plate is provided 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 4, characterized in that, The material feeding trough is polygonal in shape.

7. The liquid crystal display screen according to claim 6, characterized in that, The material chute is hexagonal in shape.

8. The liquid crystal display screen according to claim 4, characterized in that, The light guide plate has a double-sided adhesive on one side of its upper surface, and at least one step is formed on the double-sided adhesive. The surface of the step is adhesive. The light guide plate has an optical film assembly, which includes at least one optical film. The optical film is disposed on the step of the double-sided adhesive, and the number of steps corresponds to the number of optical films.

9. The liquid crystal display screen according to claim 8, characterized in that, The double-sided adhesive includes an overlay layer and an adhesive layer, wherein the overlay layer forms the step, and the adhesive layer is disposed on the step.

10. The liquid crystal display screen according to claim 8, characterized in that, The upper surface of the light guide plate is provided with a boss, which is used to position the double-sided adhesive.

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