Novel outdoor cover plate display screen

Abstract

The outdoor cover plate display screen disclosed by the invention is reasonable in design, and the transmittance of the display screen is remarkably improved by adding the AR coating, so that the display content is clearer and more visible in a strong light or complex environment; the silver paste is added on the metal block, so that the conductivity and the heating speed of the heating element are improved, the display screen is ensured to quickly reach the working temperature in a low-temperature environment, and the atomization phenomenon is prevented; the edge is coated with the edge printing ink, so that the edge of the display screen is effectively prevented from leaking light, and the visual effect and the attractiveness are improved; a high-DOL substrate is adopted, and laser cutting, edge polishing and surface polishing processes are carried out, so that the display screen has high strength and high protection performance; by adding the silver paste on the metal block and coating the reverse cover ink, the reliability and the service life of the metal block are remarkably improved; the method is stable and reliable, and is less affected by the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor display screens, and particularly to a new type of outdoor cover display screen. Background Art

[0002] With the increasing demand for outdoor advertising and information release, the application of outdoor display screens is becoming more and more extensive. The outdoor cover display screen is an important interface for people to communicate with display information, and its performance directly affects safety and user experience. However, the outdoor environment is complex and changeable, and the display screen needs to have high protection, high definition, and good heating performance. The existing outdoor display screens have deficiencies in terms of protection and heating, and it is difficult to meet the requirements of long-term stable operation. The existing outdoor display screens mainly have the following problems: 1. The transmittance of conventional display screens is relatively low, resulting in unclear display in strong light or complex environments; 2. The heating speed of the display screen is slow in low-temperature environments, and it is easy to produce fogging phenomena; 3. Light leakage is likely to occur at the edges of the display screen, affecting the visual effect and aesthetics; 4. The strength of the substrate of the display screen is insufficient, and the protection performance is poor; 5. The reliability of the metal block heating element is insufficient and is easily affected by the environment.

[0003] For example, a low-temperature adaptable outdoor high-brightness liquid crystal display device disclosed in Patent CN 212181207U includes a housing. A drive controller is fixedly installed inside the upper end of the housing, a light intensity sensor is fixedly installed at the upper end of the housing, a vacuum heat insulation layer is provided inside the housing, and a heat conducting plate, a light guide plate, a light source assembly, a diffusion film, a brightness enhancement film, a liquid crystal display module, and a glass cover plate are fixedly installed inside the housing from the inside to the outside in sequence. The heat conducting plate includes an insulation resistance and electrode strips, and the insulation resistance is located at both ends of the electrode strips; it is heated by setting the heat conducting plate and the vacuum heat insulation layer. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a new type of outdoor cover display screen to achieve the purpose of stable and reliable operation and little influence by the environment.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] The new type of outdoor cover display screen includes a display screen body. The display screen body includes a visible area and a non-visible area around the visible area. A metal block heating element for heating is provided in the non-visible area. An anti-reflection coating is provided on the surface of the display screen body; a silver paste layer for improving conductivity and heat conduction is coated on the surface of the metal block heating element to form a metal block conductive area.

[0007] Further or preferably:

[0008] The edge of the display screen body is coated with an edge ink layer.

[0009] The substrate of the display screen body adopts a high DOL substrate.

[0010] A protective layer is coated on the silver paste layer of the metal block heating element.

[0011] The anti-reflection coating is an optical coating layer, and the optical coating layer includes a low refractive index film layer located in the inner layer and a high refractive index film layer located in the outer layer.

[0012] The thickness of the edge ink layer is 10 - 20 micrometers.

[0013] The substrate is cut by laser cutting technology to ensure that the edge is flat and burr-free; the cut substrate is subjected to edge polishing and surface polishing treatments.

[0014] The protective layer is a reverse cover ink layer.

[0015] The layer structure of the non-visible area includes a substrate, a silicon dioxide insulating layer, an intermediate layer, an indium tin oxide transparent conductive layer, an anti-reflection coating, and an edge ink layer arranged in sequence.

[0016] The layer structure of the metal block conductive area includes a substrate, a silicon dioxide insulating layer, an intermediate layer, an indium tin oxide transparent conductive layer, a metal block layer, a silver paste layer, and an insulating ink layer arranged in sequence.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The design of this new outdoor cover display screen is reasonable. By adding an AR coating, the transmittance of the display screen is significantly improved, making the display content more clearly visible in strong light or complex environments; by adding silver paste on the metal block, the conductivity and heating speed of the heating element are improved, ensuring that the display screen quickly reaches the working temperature in a low-temperature environment and preventing the atomization phenomenon; by coating edge ink on the edge, light leakage at the edge of the display screen is effectively prevented, enhancing the visual effect and aesthetics; by adopting a high DOL substrate and through the laser cutting + edge polishing and surface polishing process, the display screen has high strength and high protection; by adding silver paste on the metal block and coating reverse cover ink, the reliability and service life of the metal block are significantly improved; its implementation is stable and reliable, and it is less affected by the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0020] Figure 1 It is a schematic structural diagram of the product of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the non-visible area of the present invention.

[0022] Figure 3Schematic diagram of the metal block area structure of the present invention.

[0023] Figure 4 Schematic diagram of the visible area structure of the present invention.

[0024] In the figure:

[0025] 1. Non-visible area, 2. Visible area, 3. Metal block area. Detailed implementation manners

[0026] The following further elaborates on the detailed implementation manners of the present invention by describing the embodiments with reference to the accompanying drawings.

[0027] As Figures 1 to 4 shown, the new outdoor cover display screen includes a display screen body. The display screen body includes a visible area and a non-visible area around the visible area. A metal block heating element for heating is provided in the non-visible area, and an anti-reflection coating is provided on the surface of the display screen body; a silver paste layer for improving conductivity and heat conduction is coated on the surface of the metal block heating element to form a metal block conductive area.

[0028] The edge of the display screen body is coated with an edge ink layer; the thickness of the edge ink layer is 10 - 20 microns. The substrate of the display screen body uses a high DOL substrate, which is a high stress layer substrate.

[0029] A protective layer is coated on the silver paste layer of the metal block heating element; preferably, the protective layer is an anti-cover ink layer. The anti-reflection coating is an optical coating layer, and the optical coating layer includes a low refractive index film layer in the inner layer and a high refractive index film layer in the outer layer.

[0030] The substrate is cut by laser cutting technology to ensure that the edge is flat and burr-free; the cut substrate is subjected to edge polishing and surface polishing treatments.

[0031] The specific solution is as follows:

[0032] Adding an AR coating to improve the transmittance:

[0033] A layer of AR (anti-reflection) coating is added to the surface of the conventional display screen. This coating uses multi-layer optical coating technology, which can effectively reduce the light reflection on the screen surface and improve the transmittance. The specific implementation manner is: a layer of low refractive index material (such as silicon dioxide) is coated on the outermost layer of the display screen, and then a layer of high refractive index material (such as titanium dioxide) is coated to form a multi-layer optical film. The AR coating can increase the transmittance of the screen to more than 95%, making the display content clearer and more visible in strong light or complex environments.

[0034] Adding silver paste to the metal block to improve the heating speed:

[0035] Apply a layer of silver paste on the surface of the metal block (usually a heating element) of the display screen. The silver paste has excellent electrical conductivity and thermal conductivity, which can significantly improve the heating efficiency of the metal block. The specific implementation method is as follows: evenly apply the silver paste on the surface of the metal block and make it firmly adhere through a high-temperature sintering process. The addition of the silver paste reduces the resistance of the metal block and increases the heating speed by more than 30%, ensuring that the display screen quickly reaches the operating temperature in a low-temperature environment and preventing the atomization phenomenon.

[0036] Add edge ink to the product edge to prevent light leakage:

[0037] Apply a layer of edge ink to the edge area of the display screen. This ink is made of high-light-shielding materials and can effectively prevent light leakage at the edge of the display screen. The specific implementation method is as follows: use the screen printing process to apply black or dark edge ink to the edge area of the display screen.

[0038] The thickness of the edge ink is controlled within 10 - 20 microns to ensure its light-shielding effect without affecting the overall thickness of the display screen. Through the application of the edge ink, the visual effect of the display screen is significantly improved, and the light leakage phenomenon is completely eliminated.

[0039] Adopt a high-DOL substrate and use laser cutting + edge polishing and surface polishing processes:

[0040] The substrate of the display screen uses high-DOL (Depth of Layer) materials, which have high strength and high protection performance. The specific implementation method is as follows:

[0041] Precisely cut the substrate through laser cutting technology to ensure that the edge is flat and burr-free. Perform edge polishing and surface polishing on the cut substrate to further improve its surface smoothness and strength. The adoption of the high-DOL substrate makes the display screen have higher impact resistance and protection performance, suitable for complex environments.

[0042] Add silver paste to the metal block and apply cover ink to improve reliability:

[0043] After applying the silver paste on the surface of the metal block, apply a layer of cover ink for protection. The cover ink has excellent high-temperature resistance and corrosion resistance, and can effectively protect the metal block from environmental influences. The specific implementation method is as follows: evenly apply the cover ink on the surface of the metal block coated with silver paste and make it firmly adhere through a curing process. The addition of the cover ink significantly improves the reliability and service life of the metal block, ensuring the stable operation of the display screen in harsh environments.

[0044] The outdoor cover display screen of the present invention is reasonably designed. By adding an AR coating, the transmittance of the display screen is significantly improved, making the displayed content clearer and more visible in strong light or complex environments; by adding silver paste to the metal block, the conductivity and heating speed of the heating element are improved, ensuring that the display screen quickly reaches the operating temperature in low-temperature environments and preventing the atomization phenomenon; by coating edge ink on the edge, light leakage at the edge of the display screen is effectively prevented, enhancing the visual effect and aesthetics; by using a high-DOL substrate and through laser cutting + edge polishing and surface polishing processes, the display screen has high strength and high protection; by adding silver paste to the metal block and coating anti-cover ink, the reliability and service life of the metal block are significantly improved; it is currently stable and reliable and less affected by the environment.

[0045] The preferred specific example of the present invention is:

[0046] As Figure 1 shown, the overall structure of the display screen is divided into multiple regions as shown in the figure, including a visible area, a non-visible area, and a metal block area.

[0047] As Figure 2 shown, the structure of the non-visible area includes high-DOL Glass + SiO2 + IM + ITO + AR + edge ink;

[0048] From bottom to top, they are:

[0049] High-DOL Glass (high-depth layer glass substrate)

[0050] SiO2 layer (silicon dioxide insulating layer)

[0051] IM layer (the intermediate layer is silicon nitride + silicon dioxide, enhancing adhesion)

[0052] ITO layer (indium tin oxide transparent conductive layer)

[0053] AR layer (anti-reflection coating)

[0054] Edge ink (coated on the edge to prevent light leakage)

[0055] As Figure 3 shown, the structure of the conductive area of the metal block includes high-DOL Glass + SiO2 + IM + ITO + metal + silver paste + insulating ink;

[0056] From bottom to top, they are:

[0057] High-DOL Glass (high-depth layer glass substrate)

[0058] SiO2 layer (silicon dioxide insulating layer)

[0059] IM layer (intermediate layer, enhancing adhesion)

[0060] ITO layer (Indium Tin Oxide transparent conductive layer)

[0061] Metal layer (heating element body)

[0062] Silver paste layer (improving conductivity)

[0063] Insulating ink layer (insulating and protecting)

[0064] Such as Figure 4 shown, the structure of the visible area includes High DOL Glass + SiO2 + IM + ITO + AR;

[0065] From bottom to top in sequence are:

[0066] High DOL Glass (High Depth Layer glass substrate)

[0067] SiO2 layer (Silicon Dioxide insulating layer)

[0068] IM layer (intermediate layer, enhancing adhesion)

[0069] ITO layer (Indium Tin Oxide transparent conductive layer)

[0070] AR layer (Anti-Reflection coating)

[0071] The above is only an illustration of the preferred embodiments of the present invention, and the above technical features can be combined arbitrarily to form multiple embodiment schemes of the present invention.

[0072] The present invention has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A new type of outdoor cover display screen, including a display screen body, the display screen body includes a visible area and a non-visible area located around the visible area, and a metal block heating element for heating is provided in the non-visible area, and it is characterized in that: An anti-reflection coating is provided on the surface of the display screen body; a silver paste layer for improving conductivity and heat conduction is coated on the surface of the metal block heating element to form a metal block conductive region.

2. The novel outdoor cover display screen according to claim 1, wherein: An edge ink layer is coated on the edge of the display screen body.

3. The novel outdoor cover display screen according to claim 1, characterized in that: The substrate of the display screen body uses a high DOL substrate.

4. The novel outdoor cover display screen according to claim 1, wherein: A protective layer is coated on the silver paste layer of the metal block heating element.

5. The new outdoor cover display screen according to claim 1, characterized in that: The anti-reflection coating is an optical coating layer, and the optical coating layer includes a low refractive index film layer located in the inner layer and a high refractive index film layer located in the outer layer.

6. The novel outdoor cover display screen according to claim 2, wherein: The thickness of the edge ink layer is 10 - 20 microns.

7. The novel outdoor cover display screen according to claim 3, wherein: The substrate is cut by laser cutting technology to ensure that the edge is smooth and burr-free; the cut substrate is subjected to edge polishing and surface polishing treatments.

8. The novel outdoor cover display screen according to claim 4, wherein: The protective layer is an anti-cover ink layer.

9. The novel outdoor cover display screen according to claim 1, characterized in that: The layer structure of the non-visible area includes a substrate, a silicon dioxide insulating layer, an intermediate layer, an indium tin oxide transparent conductive layer, an anti-reflection coating, and an edge ink layer arranged in sequence.

10. The novel outdoor cover display screen according to claim 1, wherein: The layer structure of the metal block conductive region includes a substrate, a silicon dioxide insulating layer, an intermediate layer, an indium tin oxide transparent conductive layer, a metal block layer, a silver paste layer, and an insulating ink layer arranged in sequence.

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