Novel film-coated cover plate for enhancing durability of film layer and liquid crystal display screen

Abstract

The utility model discloses a novel film-coated cover plate capable of enhancing the durability of a film layer and a liquid crystal display screen, and the novel film-coated cover plate capable of enhancing the durability of the film layer comprises a glass cover plate, and an aluminum oxynitride layer, a silicon carbide layer and a bismuth trioxide layer which are sequentially arranged on the upper surface of the glass cover plate from bottom to top, the thickness of the aluminum oxynitride layer ranges from 50 nm to 100 nm, the thickness of the silicon carbide layer ranges from 100 nm to 200 nm, and the thickness of the bismuth trioxide layer ranges from 20 nm to 50 nm. Each layer of material is meticulously selected and designed so as to realize specific functions and benefits. The aluminum oxynitride of the bottom layer provides good adhesive force and protection, the silicon carbide of the middle layer enhances wear resistance and thermal management capability, and the bismuth trioxide of the surface layer is used for adjusting optical performance. The design of the layered structure not only considers the unique properties of the materials, but also considers the interaction among the materials, so as to ensure that the final product shows excellent comprehensive performance in practical application.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of liquid crystal display technical field, more specifically, it relates to a novel film-coated cover plate and liquid crystal display screen of reinforcing film layer durability. BACKGROUND

[0002] With the rapid development of intelligent devices, the performance requirements of glass cover plate are becoming higher and higher. Traditional single material film coating cannot meet the requirements of glass cover plate film layer durability for modern electronic devices. Therefore, the development of composite film coating with multiple functional characteristics has become an important trend in the industry, and how to ensure that the film coating layer and the glass cover plate have good adhesion have become the subject of research for major manufacturers. SUMMARY

[0003] The technical problem to be solved by the utility model is how to strengthen the film layer durability of the glass cover plate.

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

[0005] To solve the above technical problems, the utility model provides a novel film-coated cover plate for reinforcing film layer durability, which comprises a glass cover plate and an aluminum oxynitride layer, a silicon carbide layer and a bismuth trioxide layer arranged in order from bottom to top on the upper surface of the glass cover plate. The thickness of the aluminum oxynitride layer is 50-100 nm, the thickness of the silicon carbide layer is 100-200 nm, and the thickness of the bismuth trioxide layer is 20-50 nm.

[0006] The utility model provides a liquid crystal display screen, which comprises the film-coated cover plate for reinforcing film layer durability as described above.

[0007] As a preferred embodiment of the liquid crystal display screen provided by the utility model, a TFT module is arranged below the glass cover plate.

[0008] As a preferred embodiment of the liquid crystal display screen provided by the utility model, the TFT module comprises a lower polarizing plate, a lower substrate, an upper substrate and an upper polarizing plate arranged in order from bottom to top. The lower substrate is longer than the upper substrate and extends outward to form a step. The upper surface of the lower substrate at the step is bound with a drive IC and an FPC.

[0009] As a preferred embodiment of the liquid crystal display screen provided by the utility model, the upper surface of the FPC is provided with a solder pad, and the upper and lower surfaces of the FPC are covered with an EMI shielding film. The EMI shielding film is provided with a relief position at the solder pad.

[0010] As a preferred embodiment of the liquid crystal display provided by the utility model, the edge of the EMI shielding film at the avoiding position is more than 0.5mm away from the edge of the solder pad.

[0011] As a preferred embodiment of the liquid crystal display provided by the utility model, a PET film is arranged between the FPC and the EMI shielding film, and the edge of the PET film close to the avoiding position exceeds the edge of the EMI shielding film.

[0012] As a preferred embodiment of the liquid crystal display provided by the utility model, the edge of the PET film close to the avoiding position exceeds the edge of the EMI shielding film by more than 0.5mm.

[0013] As a preferred embodiment of the liquid crystal display provided by the utility model, the bottom of the PET film is provided with double-sided adhesive.

[0014] As a preferred embodiment of the liquid crystal display provided by the utility model, the edge of the solder pad is provided with insulating glue, and the insulating glue covers the avoiding position.

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

[0016] The aluminum oxynitride layer has good thermal stability, chemical stability and mechanical strength, is suitable for being used as the bottom layer of the coating layer, provides good adhesion and protection to the glass cover plate, can enhance the overall stability and durability of the coating layer, and reduces performance degradation caused by temperature change or chemical corrosion; the silicon carbide layer has high hardness, high wear resistance and excellent thermal conductivity, is suitable for being used as a reinforcing layer, improves the scratch resistance of the glass cover plate, can significantly improve the durability of the cover plate, reduces scratches and abrasion in daily use, and helps heat dissipation and protects internal electronic components; the bismuth trioxide layer has optical activity under certain conditions, such as high refractive index, and can be used to adjust the optical performance of the coating layer, such as increasing the light transmittance and reducing reflection. The utility model sequentially deposits an aluminum oxynitride layer, a silicon carbide layer and a bismuth trioxide layer on the front surface of the glass cover plate, and forms a composite coating layer with a multilayer structure. Each layer of material is carefully selected and designed to achieve specific functions and benefits. The aluminum oxynitride of the bottom layer provides good adhesion and protection, the silicon carbide of the middle layer enhances wear resistance and heat management capability, and the bismuth trioxide of the surface layer is used to adjust the optical performance. The design of this layered structure not only considers the unique properties of each material, but also considers their interaction to ensure that the final product exhibits excellent comprehensive performance in practical applications. By adjusting the thickness and order of each layer, the performance of the coating layer can be further optimized to meet different application requirements. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the scheme in the present application clearer, the drawings needed to be used in the embodiment description will be briefly introduced as follows. 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 any creative effort on the basis of these drawings.

[0018] Figure 1 The structural schematic diagram of the film-coated cover plate with reinforced film layer durability provided by the present application is shown.

[0019] Figure 2 The structural schematic diagram of the liquid crystal display screen provided by the present application is shown.

[0020] Figure 3 The sectional view of A-A in the Figure 2

[0021] The sectional view of A-A in the Figure 4 Figure 3 The structural schematic diagram of the liquid crystal display screen provided by the present application is shown.

[0022] Explanation of the reference signs:

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

[0024] Lower polarizer 2; lower substrate 3; upper substrate 4; upper polarizer 5; driving IC 6; FPC 7; solder pad 8; EMI shielding film 9; PET film 10. DETAILED DESCRIPTION

[0025] In order to make the scheme in the present application clearer, the drawings needed to be used in the embodiment description will be briefly introduced as follows. 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 any creative effort on the basis of these drawings.

[0026] ​In the description of the utility model, it is understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, structure and operation, and therefore cannot be understood as a limitation on the utility model.

[0027] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "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.

[0028] The utility model provides a kind of novel film layer durability reinforced film cover plate, it includes glass cover plate and by sequentially setting aluminium oxynitride layer, silicon carbide layer and bismuth trioxide layer from bottom to top on the upper surface of the glass cover plate, the thickness of the aluminium oxynitride layer is 50nm-100nm, the thickness of the silicon carbide layer is 100nm-200nm, the thickness of the bismuth trioxide layer is 20nm-50nm.

[0029] The aluminum oxynitride layer has good thermal stability, chemical stability and mechanical strength, is suitable for being used as a bottom layer of a coating layer, provides good adhesion and protection to a glass cover plate, can enhance the overall stability and durability of the coating layer, and reduces performance degradation caused by temperature changes or chemical corrosion; the silicon carbide layer has high hardness, high wear resistance and excellent thermal conductivity, is suitable for being used as a reinforcing layer, improves the scratch resistance of the glass cover plate, can significantly improve the durability of the cover plate, reduces scratches and wear in daily use, and helps heat dissipation to protect internal electronic components; the bismuth trioxide layer has optical activity under certain conditions, such as high refractive index, and can be used to adjust the optical performance of the coating layer, such as increasing the light transmittance and reducing the reflection. The utility model discloses a glass cover plate, which comprises a glass cover plate, an aluminum oxynitride layer, a silicon carbide layer and a bismuth trioxide layer deposited on the front surface of the glass cover plate in sequence, and forms a composite coating layer with a multilayer structure. Each layer of material is carefully selected and designed to achieve specific functions and benefits. The aluminum oxynitride of the bottom layer provides good adhesion and protection, the silicon carbide of the middle layer enhances wear resistance and heat management capability, and the bismuth trioxide of the surface layer is used to adjust the optical performance. The design of this layered structure not only considers the unique properties of each material, but also considers their interaction to ensure that the final product exhibits excellent comprehensive performance in practical applications. By adjusting the thickness and order of each layer, the performance of the coating layer can be further optimized to meet different application requirements.

[0030] 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 will be 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 a limitation on the utility model.

[0031] Embodiment 1, please refer to Figure 1The utility model provides a novel film layer durability reinforced coated cover plate which comprises a glass cover plate 1 and an aluminum oxynitride layer 11, a silicon carbide layer 12 and a bismuth trioxide layer 13 arranged in sequence from bottom to top on the upper surface of the glass cover plate 1, the thickness of the aluminum oxynitride layer 11 is 50-100 nm, the thickness of the silicon carbide layer 12 is 100-200 nm, and the thickness of the bismuth trioxide layer 13 is 20-50 nm. The aluminum oxynitride layer 11 has good thermal stability, chemical stability and mechanical strength, is suitable for being used as the bottom layer of the coated layer, provides good adhesion and protection to the glass cover plate 1, can enhance the overall stability and durability of the coated layer, and reduces the performance decline caused by temperature change or chemical corrosion; the silicon carbide layer 12 has high hardness, high wear resistance and excellent thermal conductivity, is suitable for being used as the reinforcing layer, improves the scratch resistance of the glass cover plate 1, can significantly improve the durability of the cover plate, reduces scratches and abrasion in daily use, and is helpful to heat dissipation and protection of internal electronic elements; the bismuth trioxide layer 13 has optical activity under certain conditions, such as high refractive index, and can be used for adjusting the optical performance of the coated layer, such as increasing the light transmittance and reducing reflection. The utility model forms a composite coated layer with a multilayer structure by sequentially depositing the aluminum oxynitride layer 11, the silicon carbide layer 12 and the bismuth trioxide layer 13 on the front surface of the glass cover plate 1. Each layer of material is carefully selected and designed to achieve specific functions and benefits. The aluminum oxynitride of the bottom layer provides good adhesion and protection, the silicon carbide of the middle layer enhances wear resistance and heat management capability, and the bismuth trioxide of the surface layer is used for adjusting the optical performance. The design of this layered structure not only considers the unique properties of each material, but also considers their interactions to ensure that the final product exhibits excellent comprehensive performance in practical applications. By adjusting the thickness and order of each layer, the performance of the coated layer can be further optimized to meet different application requirements.

[0032] Example 2, see Figures 2 to 4 The utility model provides a liquid crystal display screen which comprises the coated cover plate with reinforced film layer durability as described above, and a TFT module is arranged below the glass cover plate 1, the TFT module comprises a lower polarizer 2, a lower substrate 3, an upper substrate 4 and an upper polarizer 5 arranged in sequence from bottom to top, the lower substrate 3 is longer than the upper substrate 4 and extends outward to form a step, and a driving IC 6 and an FPC 7 are bound to the upper surface of the lower substrate 3 at the step.

[0033] Further, the upper surface of the FPC 7 is provided with a solder pad 8, and the upper and lower surfaces of the FPC 7 are both covered with an EMI shielding film 9, which is provided with a reserved position at the solder pad 8. Since the upper and lower surfaces of the FPC 7 are both provided with the EMI shielding film 9, the electromagnetic shielding capability of the FPC 7 can be greatly improved, the stability of signal transmission is improved, various functional problems and poor display effects are avoided, and the competitiveness of the product is improved.

[0034] Further, the edge of the EMI shielding film 9 at the reserved position is more than 0.5 mm away from the edge of the solder pad 8, so as to prevent the edge of the EMI shielding film 9 from contacting the solder pad 8 and causing an open circuit.

[0035] Further, a PET film 10 is arranged between the FPC 7 and the EMI shielding film 9, and the edge of the PET film 10 near the reserved position is beyond the edge of the EMI shielding film 9. By extending the edge of the PET film 10 near the solder pad 8, the edge of the PET film 10 is pulled away from the edge of the EMI shielding film 9 by a certain distance, so that even if there is a certain operation error during the attachment, the edge of the EMI shielding film 9 will not contact the edge of the solder pad 8, thereby insulating the edge of the EMI shielding film 9 and preventing the edge of the EMI shielding film 9 from contacting the solder pad 8 to cause a short circuit problem, and the attachment efficiency and production yield are improved.

[0036] Further, the edge of the PET film 10 near the reserved position is more than 0.5 mm beyond the edge of the EMI shielding film 9, so as to ensure that the edge of the EMI shielding film 9 does not contact the solder pad 8, thereby insulating the edge of the EMI shielding film 9 and preventing the edge of the EMI shielding film 9 from contacting the solder pad 8 to cause a short circuit problem, and the attachment efficiency and production yield are improved.

[0037] Further, the bottom of the PET film 10 is provided with double-sided adhesive or coated with glue. Since part of the PET film 10 does not have adhesion or has insufficient adhesion, the bottom of the PET film 10 is provided with double-sided adhesive or coated with glue, so that the PET film 10 can be attached to the FPC 7.

[0038] Further, the edge of the solder pad 8 is provided with insulating glue, which covers the reserved position, so as to protect the edge of the solder pad 8.

[0039] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0040] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments, 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 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 is 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 replacement for part of the technical features. Any equivalent structure made by using the contents of the specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A novel film-coated cover plate for reinforcing the durability of a film layer, characterized by, The glass cover plate comprises a glass cover plate and an aluminum oxynitride layer, a silicon carbide layer and a bismuth trioxide layer arranged in sequence from bottom to top on the upper surface of the glass cover plate, the thickness of the aluminum oxynitride layer is 50-100 nm, the thickness of the silicon carbide layer is 100-200 nm, and the thickness of the bismuth trioxide layer is 20-50 nm.

2. A liquid crystal display panel, characterized by comprising: The film-coated cover plate for reinforcing the durability of the film layer.

3. The liquid crystal display of claim 2, wherein, A TFT module is arranged below the glass cover plate.

4. The liquid crystal display panel of claim 3, wherein, The TFT module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer arranged in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, and a driving IC and an FPC are bound to the upper surface of the lower substrate at the step.

5. The liquid crystal display of claim 4, wherein, A solder pad is arranged on the upper surface of the FPC, and the upper and lower surfaces of the FPC are covered with an EMI shielding film, and the EMI shielding film is provided with a relief position at the solder pad.

6. The liquid crystal display of claim 5, wherein, The edge of the EMI shielding film at the relief position is more than 0.5 mm away from the edge of the solder pad.

7. The liquid crystal display of claim 5, wherein, A PET film is arranged between the FPC and the EMI shielding film, and the edge of the PET film close to the relief position is beyond the edge of the EMI shielding film.

8. The liquid crystal display of claim 7, wherein, The edge of the PET film close to the relief position is more than 0.5 mm beyond the edge of the EMI shielding film.

9. The liquid crystal display of claim 7, wherein, The bottom of the PET film is provided with double-sided adhesive.

10. The liquid crystal display of claim 5, wherein, The edge of the solder pad is provided with insulating glue, and the insulating glue covers the relief position.

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