Electric heating shielding window assembly

Abstract

The utility model provides an electric heating shielding window assembly which comprises a touch screen, tempered glass, a metal wire mesh, ITO conductive glass and a display screen which are sequentially arranged, one face of the ITO conductive glass is a conductive face, electrodes are attached to the two opposite sides of the conductive face, and wires are led out of the electrodes. After the ITO conductive glass is electrified and heated, normal work of the display screen under the low-temperature working condition can be guaranteed, meanwhile, the situation that the surface of the touch screen is frosted or fogged can be reduced, and normal display of equipment can be guaranteed; the touch screen, the electric heating shielding glass and the display screen are all attached together, so that a customer can directly and integrally install the window assembly on equipment conveniently instead of assembling the window assembly on the equipment in a scattered mode, the internal space of the equipment can be saved, and the overall reliability of the window assembly is improved.

Description

Technical Field

[0001] This application relates to the field of display screen technology, and more particularly to an electrically heated shielded window assembly. Background Technology

[0002] Electromagnetic shielding for military equipment display windows typically involves using wire mesh shielding glass, which is then mounted onto the viewing window of the equipment housing. The display screen is then installed and fixed onto the housing. The wire mesh shielding glass consists of two tempered glass panes with a layer of metal wire mesh (commonly 100-mesh or 250-mesh) sandwiched between them. The two tempered glass panes are then bonded together using adhesive.

[0003] However, this type of wire mesh shielding glass is only suitable for normal environments. In harsh environments such as -40°C, which are often encountered by military equipment, the surface of the wire mesh shielding glass will frost or fog, which will seriously affect the normal display of the equipment. In addition, the display screen is also difficult to work properly at a low temperature of -40°C, and there may be cases where it cannot start up or the display shows snow-like dots. Utility Model Content

[0004] To address the issues of displays failing to function properly in harsh low-temperature environments and the impact of frost and fogging on normal use, this application provides an electrically heated shielded window assembly.

[0005] The electrically heated shielded window assembly provided in this application adopts the following technical solution:

[0006] An electrically heated shielded window assembly includes a touch screen, tempered glass, a metal mesh, an ITO conductive glass, and a display screen arranged in sequence. One side of the ITO conductive glass is a conductive surface, and electrodes are attached to both opposite sides of the conductive surface and lead-out wires are extended from it.

[0007] Furthermore, the metal wire mesh is a 100-mesh or 250-mesh wire mesh.

[0008] Furthermore, the metal wire mesh is electrically connected to the equipment housing for shielding.

[0009] Furthermore, the conductive surface of the ITO conductive glass is located on the side closest to the tempered glass.

[0010] Furthermore, a first adhesive layer for bonding the tempered glass and the ITO conductive glass is provided between them, and the metal mesh is embedded in the first adhesive layer.

[0011] Furthermore, the thickness of the first adhesive layer is greater than the sum of the thicknesses of the metal mesh and the electrode.

[0012] Furthermore, the outer peripheral wall of the conductor has an insulating layer.

[0013] Furthermore, a second adhesive layer for bonding is provided between the touch screen and the tempered glass, and between the ITO conductive glass and the display screen.

[0014] Furthermore, the metal mesh is larger than the display screen, and the portion of the metal mesh extending beyond the edge of the display screen wraps around the side of the display screen.

[0015] Furthermore, it also includes a pressure frame, wherein the portion of the metal wire mesh extending beyond the edge of the display screen wraps around the side of the display screen to form an edge and continues to extend towards the outer casing to form a pressure edge. The pressure frame is used to press the pressure edge tightly onto the casing to form an overlapping shield between the metal wire mesh and the casing.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. When the shielded window assembly of this application is working at a low temperature of -40℃, the wires can be powered by an external power source to heat the ITO conductive glass. This ensures that the display screen can work normally under low temperature conditions and also reduces the frosting or fogging of the touch screen surface, thus ensuring the normal display of the device.

[0018] 2. The shielded window assembly of this application fully integrates the touch screen, the electrically heated shielding glass, and the display screen, which not only makes it convenient for customers to directly install the window assembly as a whole onto the equipment, rather than assembling them separately, but also saves internal space and increases the overall reliability of the window assembly.

[0019] 3. Set the metal wire mesh width to be larger than the display screen width, and wrap the part of the metal wire mesh that extends beyond the edge of the display screen to the side of the display screen to form an edge and continue to extend into the outer shell to form a pressing edge. By pressing the pressing edge onto the casing with a pressing frame, the overlapping shielding effect between the metal wire mesh and the casing can be achieved.

[0020] 4. Conductive foam with conductive adhesive on both sides is set on the side of the metal wire mesh away from the pressure frame. After the conductive foam comes into contact with the housing, the conductive overlap between the metal wire mesh and the housing can be achieved, and the electromagnetic shielding performance can be enhanced. At the same time, the conductive foam can play a certain buffer overlap effect to achieve a stable overlap between the metal wire mesh and the housing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0023] Figure 2 This is a cross-sectional structural diagram of Embodiment 1 of this application;

[0024] Figure 3 This is a cross-sectional structural diagram of Embodiment 2 of this application.

[0025] Figure label:

[0026] 1. Touchscreen;

[0027] 2. Tempered glass;

[0028] 3. Metal wire mesh;

[0029] 4. ITO conductive glass; 41. Wire;

[0030] 5. Display screen;

[0031] 61. First adhesive layer; 62. Second adhesive layer;

[0032] 71. Edge binding; 72. Edge pressing; 73. Frame pressing; 74. Conductive foam;

[0033] 8. Casing. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0035] Example 1:

[0036] Reference Figure 1 and Figure 2 This application discloses an electrically heated shielded window assembly, which includes a touch screen 1, tempered glass 2, metal mesh 3, ITO conductive glass 4, and display screen 5 arranged sequentially. The metal mesh 3 is a 100-mesh or 250-mesh mesh, and the metal mesh 3 is conductively overlapped with the device housing 8 for shielding. The ITO conductive glass 4 is specifically glass with a layer of indium tin oxide film deposited on its surface. The side with the indium tin oxide film is the conductive surface, and electrodes are attached to both opposite sides of the conductive surface, with lead wires 41 extending out. The outer peripheral wall of the lead wires 41 has an insulating layer and is used to connect to a 12V or 24V power supply.

[0037] Therefore, when the shielded window assembly of this application operates at a low temperature of -40℃, power can be supplied to the wire 41 through an external power source, causing the ITO conductive glass 4 to be energized and heated. This ensures the normal operation of the display screen 5 under low-temperature conditions and reduces frost or fogging on the surface of the touch screen 1, thus ensuring normal display of the device. Moreover, the shielded window assembly of this application fully integrates the touch screen 1, the electrically heated shielding glass, and the display screen 5 together. This allows customers to directly install the entire window assembly onto the device, rather than assembling them piecemeal, saving internal space and increasing the overall reliability of the window assembly.

[0038] Specifically, refer to Figure 1 and Figure 2 The conductive surface of the ITO conductive glass 4 is located on the side closest to the tempered glass 2. A first adhesive layer 61 is provided between the tempered glass 2 and the ITO conductive glass 4 to bond them together. The metal mesh 3 is embedded in the first adhesive layer 61. The thickness of the first adhesive layer 61 is greater than the sum of the thicknesses of the metal mesh 3 and the electrodes to prevent the metal mesh 3 from directly contacting the electrodes and causing the metal mesh 3 to conduct electricity. A second adhesive layer 62 is provided between the touch screen 1 and the tempered glass 2, and between the ITO conductive glass 4 and the display screen 5, for bonding. Both the first adhesive layer 61 and the second adhesive layer 62 are optical adhesives to reduce the impact on the display effect of the display screen 5.

[0039] Example 2:

[0040] Reference Figure 3 This application discloses an electrically heated shielded window assembly, which differs from Embodiment 1 in that:

[0041] The window assembly also includes a pressure frame 73 for pressing the wire mesh 3 onto the housing 8. The pressure frame 73 is made of aluminum alloy. The wire mesh 3 is larger than the display screen 5. The portion of the wire mesh 3 that extends beyond the edge of the display screen 5 wraps around the side of the display screen 5 to form an edge 71 and continues to extend towards the housing to form a pressing edge 72. The pressure frame 73 is used to press the pressing edge 72 onto the housing 8 to form an overlap shield between the wire mesh 3 and the housing 8.

[0042] Furthermore, on the side of the metal wire mesh 3 facing away from the pressure frame 73, there is also a conductive foam 74 with conductive adhesive on both sides. After the conductive foam 74 comes into contact with the housing 8, the conductive overlap between the metal wire mesh 3 and the housing 8 can be achieved, and the electromagnetic shielding performance can be enhanced. At the same time, the conductive foam 74 can play a certain buffering overlap effect to achieve a stable overlap between the metal wire mesh 3 and the housing 8.

[0043] The implementation principle of an electrically heated shielded window assembly according to an embodiment of this application is as follows:

[0044] When the shielded window assembly of this application operates at a low temperature of -40℃, power can be supplied to the wire 41 through an external power source, causing the ITO conductive glass 4 to be energized and heated. This ensures the normal operation of the display screen 5 under low-temperature conditions and reduces frost or fogging on the surface of the touch screen 1, thus ensuring normal display of the device. Moreover, the shielded window assembly of this application fully integrates the touch screen 1, the electrically heated shielding glass, and the display screen 5 together. This allows customers to directly install the entire window assembly onto the device, rather than assembling them piecemeal, saving internal space and increasing the overall reliability of the window assembly.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrically heated shielded window assembly, characterized in that, The device includes a touch screen, tempered glass, metal mesh, ITO conductive glass and display screen arranged in sequence. One side of the ITO conductive glass is a conductive surface, and electrodes are attached to both opposite sides of the conductive surface and lead out wires.

2. The electrically heated shielded window assembly according to claim 1, characterized in that, The wire mesh is either 100 mesh or 250 mesh.

3. The electrically heated shielded window assembly according to claim 1, characterized in that, The metal wire mesh is electrically connected to the equipment casing for shielding.

4. The electrically heated shielded window assembly according to claim 1, characterized in that, The conductive surface of the ITO conductive glass is located on the side closest to the tempered glass.

5. The electrically heated shielded window assembly according to claim 4, characterized in that, A first adhesive layer for bonding the tempered glass and the ITO conductive glass is provided between them, and the metal mesh is embedded in the first adhesive layer.

6. The electrically heated shielded window assembly according to claim 5, characterized in that, The thickness of the first adhesive layer is greater than the sum of the thicknesses of the metal mesh and the electrode.

7. The electrically heated shielded window assembly according to claim 1, characterized in that, The outer peripheral wall of the conductor has an insulating layer.

8. The electrically heated shielded window assembly according to claim 1, characterized in that, A second adhesive layer for bonding is provided between the touch screen and the tempered glass, and between the ITO conductive glass and the display screen.

9. The electrically heated shielded window assembly according to claim 1, characterized in that, The metal mesh is larger than the display screen, and the portion of the metal mesh extending beyond the edge of the display screen wraps around the side of the display screen.

10. The electrically heated shielded window assembly according to claim 9, characterized in that, It also includes a pressure frame, wherein the portion of the metal wire mesh extending beyond the edge of the display screen wraps around the side of the display screen to form a edging and continues to extend towards the outer casing to form a pressure edge. The pressure frame is used to press the pressure edge tightly onto the casing to form an overlapping shield between the metal wire mesh and the casing.

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