Superhard antibacterial and antifouling liquid crystal display screen

Abstract

The utility model discloses a superhard antibacterial and anti-fouling liquid crystal display screen which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid and a cover plate which are sequentially arranged in an overlapped mode from bottom to top, and the lower substrate is longer than the upper substrate and extends outwards to form a step. A driving IC and an FPC are bound on the upper surface of the lower substrate located at the step, a black ink layer is arranged on the lower surface of the cover plate located in the non-display area, the upper surface of the cover plate is covered with a diamond-like coating film, the upper surface of the diamond-like coating film is covered with an antibacterial film, the upper surface of the antibacterial film is covered with an anti-fingerprint film, and the upper surface of the anti-fingerprint film is covered with an anti-fingerprint film. The antibacterial film comprises an oDLC film layer and a silver-zinc ion sputtering layer, the oDLC film layer covers the upper surface of the diamond-like coating film, and the silver-zinc ion sputtering layer is arranged on the upper surface of the oDLC film layer through magnetron sputtering. Therefore, the liquid crystal display screen is high in hardness, antibacterial, anti-smudginess and anti-fingerprint.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a super-hard antibacterial and anti-fouling liquid crystal display screen. Background Art

[0002] Most current consumer electronic products have protective covers, such as mobile phones, watches, tablets, etc. The user's hands will touch the surface of the cover many times in order to touch the LCD screen. During the touch process, the bacteria on the surface of the cover will be transferred to the user's hands, posing a threat to the user's health; in addition, the oil or other dirty substances on the user's hands will also form fingerprints and be transferred to the surface of the product cover, causing a certain impact on the appearance and display of the cover, reducing the user's experience; finally, due to the high frequency of use of electronic products in life, the risk of scratching the surface of the cover is also greater. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design a liquid crystal display screen which has high hardness, is antibacterial and anti-fouling.

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

[0005] In order to solve the above technical problems, the utility model provides a super-hard antibacterial and anti-fouling liquid crystal display screen, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence 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 located at the step is bound with a driver IC and an FPC, the lower surface of the cover plate located in a non-display area is provided with a black ink layer, the upper surface of the cover plate is covered with a diamond-like carbon coating, the upper surface of the diamond-like carbon coating is covered with an antibacterial film, the upper surface of the antibacterial film is covered with an anti-fingerprint film, the antibacterial film includes an oDLC film layer and a silver-zinc ion sputtering layer, the oDLC film layer covers the upper surface of the diamond-like carbon coating, and the silver-zinc ion sputtering layer is arranged on the upper surface of the oDLC film layer by magnetron sputtering.

[0006] As a preferred implementation of the super-hard antibacterial and antifouling liquid crystal display provided by the utility model, a silicon dioxide primer layer is provided between the anti-fingerprint film and the antibacterial film.

[0007] As a preferred embodiment of the super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

[0008] As a preferred implementation of the super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

[0009] As a preferred implementation of the super-hard antibacterial and anti-fouling liquid crystal display screen provided by the utility model, the buffer glue is silicone glue.

[0010] As a preferred implementation of the super-hard antibacterial and anti-fouling liquid crystal display screen provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.

[0011] As a preferred embodiment of the ultra-hard antibacterial and antifouling liquid crystal display provided by the utility model, the FPC includes a substrate layer, a circuit layer arranged on the upper surface of the substrate layer, and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

[0012] As a preferred embodiment of the super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, the FPC also includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the through-hole is provided with a thermal conductive layer in contact with the circuit layer and the metal heat dissipation layer.

[0013] As a preferred implementation of the super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, a heat conductor connected to an external heat-conducting structure is arranged in the perforation, and the heat conductor is in contact with the heat-conducting layer.

[0014] As a preferred implementation of the super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, the structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

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

[0016] The diamond-like carbon coating is more than two levels higher than the original Mohs hardness of the cover glass, and has obvious high hardness and scratch resistance. The silver-zinc ion sputtering layer includes silver ions and zinc ions, which can cause damage to the bacterial cell wall and cell membrane, and then enter the cell and react with intracellular proteases, DNA and other biological groups, causing them to denature and inactivate, thereby achieving the purpose of inhibiting and killing microorganisms; the anti-fingerprint film can play a good role in resisting oil and fingerprints. It becomes a high-hardness, anti-bacterial, anti-fouling and anti-fingerprint LCD screen. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 The present invention is a schematic structural diagram of a super-hard, antibacterial and anti-fouling liquid crystal display screen provided by the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the middle cover.

[0020] Figure 3 This is a schematic diagram of the structure of Example 2.

[0021] Figure 4 This is a schematic diagram of the structure of Example 3.

[0022] Description of Figure Numbers:

[0023] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; cover plate 5; driver IC 6; FPC 7; black ink layer 51; diamond-like carbon coating 52; antibacterial film 53; anti-fingerprint film 54;

[0024] Protrusion 21; Buffer rubber 22;

[0025] Base material layer 71 ; circuit layer 72 ; metal heat dissipation layer 73 ; through hole 74 . DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] The utility model provides a super-hard antibacterial and anti-fouling liquid crystal display screen, which comprises a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, wherein the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step, a black ink layer is arranged on the lower surface of the cover plate located in a non-display area, the upper surface of the cover plate is covered with a diamond-like carbon coating, the upper surface of the diamond-like carbon coating is covered with an antibacterial film, the upper surface of the antibacterial film is covered with an anti-fingerprint film, the antibacterial film comprises an oDLC film layer and a silver-zinc ion sputtering layer, the oDLC film layer covers the upper surface of the diamond-like carbon coating, and the silver-zinc ion sputtering layer is arranged on the upper surface of the oDLC film layer by magnetron sputtering.

[0030] The diamond-like carbon coating is more than two levels higher than the original Mohs hardness of the cover glass, and has obvious high hardness and scratch resistance. The silver-zinc ion sputtering layer includes silver ions and zinc ions, which can cause damage to the bacterial cell wall and cell membrane, and then enter the cell and react with intracellular proteases, DNA and other biological groups, causing them to denature and inactivate, thereby achieving the purpose of inhibiting and killing microorganisms; the anti-fingerprint film can play a good role in resisting oil and fingerprints. It becomes a high-hardness, anti-bacterial, anti-fouling and anti-fingerprint LCD screen.

[0031] In order 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 in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0032] Example 1

[0033] See also Figure 1 and Figure 2 , a super-hard antibacterial and anti-fouling liquid crystal display provided by the utility model, comprising a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, wherein the lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step, a driver IC 6 and an FPC 7 are bound to the upper surface of the lower substrate 2 located at the step, a black ink layer 51 is provided on the lower surface of the cover plate 5 located in the non-display area, the upper surface of the cover plate 5 is covered with a diamond-like coating 52, the upper surface of the diamond-like coating 52 is covered with an antibacterial film 53, the upper surface of the antibacterial film 53 is covered with an anti-fingerprint film 54, the antibacterial film 53 comprises an oDLC film layer and a silver-zinc ion sputtering layer, the oDLC film layer covers the upper surface of the diamond-like coating 52, and the silver-zinc ion sputtering layer is arranged on the upper surface of the oDLC film layer by magnetron sputtering.

[0034] The oDLC diamond-like film is plated on the substrate surface of the cover plate 5 on which the black ink layer 51 is printed. The Mohs hardness of the oDLC film layer composed of carbon and hydrogen can reach between levels 7 and 8, which is more than two levels higher than the original Mohs hardness of the substrate glass, and has an obvious high hardness anti-scratch effect. Then, through the magnetron sputtering coating process, silver ions and zinc ions with antibacterial effects are sputtered onto the surface of the oDLC film layer. Silver ions and zinc ions can cause damage to bacterial cell walls and cell membranes, and then enter the cells, and react with intracellular proteases, DNA and other biological groups, causing them to denature and inactivate, thereby achieving the purpose of inhibiting and killing microorganisms. Finally, a silicon dioxide primer and an anti-fingerprint film 54 are plated on the surface of the antibacterial film 53. The anti-fingerprint film 54 on the surface will have the effects of anti-fingerprint and dirtiness, and increase the smooth experience of touch and caressing. In addition, since the molecular layer formed by the anti-fingerprint film 54 is non-dense, in the above structure, silver and zinc ions can pass through the silicon dioxide primer and the anti-fingerprint film 54 for antibacterial.

[0035] Furthermore, a silicon dioxide primer layer is disposed between the anti-fingerprint film 54 and the antibacterial film 53 .

[0036] Example 2

[0037] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, a protrusion 21 is provided on the edge of the upper surface of the lower substrate 2 extending outward, and a buffer glue 22 is provided on the upper surface of the lower substrate 2 between the protrusion 21 and the upper substrate 3, and the buffer glue 22 abuts against the cover plate 5. Since the edge of the lower substrate 2 is provided with a protrusion 21, the protrusion 21 can limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the LCD screen from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the lower substrate 2 is avoided, and the LCD screen is prevented from displaying abnormally.

[0038] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the upper substrate 3 to further limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control without overflowing glue or incomplete glue dispensing.

[0039] Furthermore, the buffer glue 22 is silicone glue.

[0040] Furthermore, a chamfer is provided between the protrusion 21 and the lower substrate 2 so that the buffer glue 22 can more easily fill the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3. The protrusion 21 with a chamfer can make the buffer glue 22 flow more smoothly into the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3, making it less likely for bubbles to appear.

[0041] Example 3

[0042] See also Figure 4 As a further optimization scheme of Example 1, in this embodiment, the FPC7 includes a substrate layer 71, a circuit layer 72 arranged on the upper surface of the substrate layer 71, and a metal heat dissipation layer 73 arranged on the lower surface of the substrate layer 71. The arrangement method can be that the circuit layer 72 and the metal heat dissipation layer 73 are respectively attached to the substrate layer 71 by double-sided adhesive. Since the thickness of the substrate layer 71 is relatively thin, the heat on the FPC7 can be diffused to the metal heat dissipation layer 73 through the substrate layer 71. The metal heat dissipation layer 73 can effectively increase the heat dissipation area of ​​the FPC7 and play a role in uniform heat dissipation, thereby improving the heat dissipation efficiency of the FPC7. The substrate layer 71 can be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double-sided adhesive is any one of an acrylic adhesive layer or an epoxy resin adhesive layer, and the metal heat dissipation layer 73 can be a copper foil layer.

[0043] Furthermore, the FPC 7 further includes at least one through-hole 74 penetrating the substrate layer 71, the circuit layer 72 and the metal heat dissipation layer 73, and the inner wall of the through-hole 74 is provided with a heat-conducting layer in contact with the circuit layer 72 and the metal heat dissipation layer 73. By utilizing the good thermal conductivity of the through-hole 74, the circuit layer 72 and the metal heat dissipation layer 73 on both sides of the substrate layer 71 can be electrically connected, and a good thermal conductivity function can be exerted, and the thermal conductive layer can provide a thermal conductive function to achieve a good heat dissipation effect. Among them, the thermal conductive layer can be a copper glue conductive ink layer.

[0044] Furthermore, a heat conductor connected to an external heat-conducting structure is disposed in the through hole 74, and the heat conductor is connected to the external heat-conducting structure from one side of the circuit layer 72, and is also in contact with the heat-conducting layer in the through hole 74, so that the circuit layer 72 and the metal heat dissipation layer 73 can be connected to the external heat-conducting structure through the through hole 74, so that the heat in the FPC 7 is diffused to the external heat-conducting structure through the heat conductor in the through hole 74, so as to further improve the heat dissipation efficiency of the FPC 7. Preferably, in order to enable the through hole 74 to be connected to the external heat-conducting structure, the through hole 74 is disposed at the edge of the FPC 7.

[0045] Furthermore, the metal heat dissipation layer 73 is a uniform heat dissipation structure, and its structure can be any one of a mesh structure, a strip structure, a wavy structure or a honeycomb structure. Through this uniform heat dissipation structure, the heat dissipation effect can be better improved.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. 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 is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A super-hard antibacterial and anti-fouling liquid crystal display screen, characterized in that: It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence 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 located at the step is bound with a driver IC and an FPC, the lower surface of the cover plate located in a non-display area is provided with a black ink layer, the upper surface of the cover plate is covered with a diamond-like coating, the upper surface of the diamond-like coating is covered with an antibacterial film, the upper surface of the antibacterial film is covered with an anti-fingerprint film, the antibacterial film includes an oDLC film layer and a silver-zinc ion sputtering layer, the oDLC film layer covers the upper surface of the diamond-like coating, and the silver-zinc ion sputtering layer is arranged on the upper surface of the oDLC film layer by magnetron sputtering.

2. The super-hard antibacterial and anti-fouling liquid crystal display according to claim 1, characterized in that: A silicon dioxide primer layer is arranged between the anti-fingerprint film and the antibacterial film.

3. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 1, characterized in that: A protrusion is arranged on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is arranged on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

4. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 3, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.

5. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 3, characterized in that: The buffer glue is silicone glue.

6. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 3, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.

7. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 1, characterized in that: The FPC includes a substrate layer, a circuit layer disposed on an upper surface of the substrate layer, and a metal heat dissipation layer disposed on a lower surface of the substrate layer.

8. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 7, characterized in that: The FPC further includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and an inner wall of the through-hole is provided with a heat-conducting layer in contact with the circuit layer and the metal heat dissipation layer.

9. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 8, characterized in that: A heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

10. The super-hard antibacterial and anti-fouling liquid crystal display screen according to claim 7, characterized in that: The structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wave structure or a honeycomb structure.

Images