Antistatic pure plane resistance screen

Abstract

The utility model provides an antistatic pure plane resistance screen which comprises a metal shell, a flexible film, a conductive shell, a first signal transmission layer, a second signal transmission layer and a glass plate are sequentially arranged in the metal shell from top to bottom, and a plurality of insulation columns are arranged between the first signal transmission layer and the second signal transmission layer. The first signal transmission layer, the second signal transmission layer and the glass plate are all nested in the conductive shell, the outer side wall of the conductive shell is tightly attached to the side wall of the inner cavity of the metal shell, and electrons are transmitted to the side wall of the metal shell when passing through the conductive shell by arranging the conductive shell, so that the electrons are prevented from being transmitted to the first signal transmission layer; and meanwhile, the conductive shell also plays a role in fixing the signal transmission layer I, the signal transmission layer II and the glass plate, so that the layers can be conveniently mounted during the production of the resistance screen.

Description

Technical Field

[0001] This utility model relates to the field of resistive screen technology, and in particular to an antistatic pure planar resistive screen. Background Technology

[0002] A resistive touchscreen, also known as a resistive touch screen, is a type of sensor that converts the physical position (X,Y) of a touch point in a rectangular area into voltages representing the X and Y coordinates. Many LCD modules use resistive touchscreens. These screens can use four, five, seven, or eight lines to generate screen bias voltage and simultaneously read back the voltage of the touch point.

[0003] Existing resistive touchscreens typically have a metal casing on the outside, inside which a plastic film and a glass plate are arranged from top to bottom. The bottom surface of the plastic film and the top surface of the glass plate are coated with an anti-static coating to prevent static electricity from interfering with the signal transmission of the coating. However, during the process of spraying the anti-static coating, some areas may not be completely covered by the coating, resulting in poor anti-static effect in those areas, which may make the resistive touchscreen susceptible to static interference.

[0004] Therefore, it is necessary to provide a new antistatic pure planar resistive screen to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an antistatic pure planar resistive screen.

[0006] The antistatic pure planar resistive screen provided by this utility model includes: a metal shell, and inside the metal shell, from top to bottom, a flexible film, a conductive shell, a signal transmission layer one, a signal transmission layer two, and a glass plate are arranged sequentially. Multiple insulating pillars are arranged between the signal transmission layer one and the signal transmission layer two. The signal transmission layer one, the signal transmission layer two, and the glass plate are all nested inside the conductive shell, and the outer wall of the conductive shell is tightly fitted to the inner wall of the metal shell.

[0007] Preferably, a silicone ring is provided on the upper surface of the flexible film, the silicone ring is bonded to the inner wall of the metal shell, and ultraviolet-curable adhesive layers are provided between the flexible film and the conductive shell, between the conductive shell and the first signal transmission layer, and between the second signal transmission layer and the glass plate.

[0008] Preferably, a signal sensor is bonded to the bottom of the signal transmission layer, the signal sensor penetrating the conductive outer shell and the metal shell, and the long side of the signal sensor is parallel to the long side of the metal shell.

[0009] Preferably, the signal transmission layer two is adhered with a signal sensor two at the bottom, the signal sensor two penetrates the conductive shell and the metal shell, and the long side of the signal sensor two is perpendicular to the short side of the signal sensor one.

[0010] Preferably, the conductive shell comprises an anti-static flexible plastic shell, and the surface of the anti-static flexible plastic shell is sprayed with a conductive coating.

[0011] Preferably, the signal transmission layer one and the signal transmission layer two are both made of ITO thin film.

[0012] Preferably, the insulating column is made of unsaturated polyester resin glass fiber reinforced molding plastic, and the insulating column is adhered with the signal transmission layer one and the signal transmission layer two respectively.

[0013] Compared with the related art, the anti-static pure plane resistance screen has the following beneficial effects:

[0014] The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen.

[0016] Figure 2 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen. Figure 1 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen.

[0017] Figure 3 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen. Figure 1 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen.

[0018] In the figure, 1 is a metal shell, 2 is a flexible film, 3 is a conductive shell, 4 is a signal transmission layer one, 5 is a signal transmission layer two, 6 is a glass plate, 7 is an insulating column, 8 is a signal sensor one, 9 is a signal sensor two, and 10 is a silica gel ring. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and embodiments.

[0020] Please refer to Figure 1 -- Figure 3 Among them, Figure 1 The anti-static pure plane resistance screen is provided, and in specific implementation, the conductive shell is arranged, so that the electron is transmitted to the metal shell sidewall when passing through the conductive shell, thereby avoiding the electron conduction to the signal transmission layer one, and the conductive shell also has the effect of fixing the signal transmission layer one, the signal transmission layer two and the glass plate, thereby facilitating the installation between the layers during the production of the resistance screen.Figure 2 As Figure 1 shown in the exploded structural schematic diagram; Figure 3 As Figure 1 shown in the vertical sectional view.

[0021] In the specific implementation process, an anti-static pure plane resistance screen, as shown in the structure Figure 1 — Figure 3 shown, comprising: a metal shell 1, a flexible film 2, a conductive shell 3, a signal transmission layer one 4, a signal transmission layer two 5 and a glass plate 6 are sequentially arranged in the metal shell 1 from top to bottom, a plurality of insulating columns 7 are arranged between the signal transmission layer one 4 and the signal transmission layer two 5, the signal transmission layer one 4, the signal transmission layer two 5 and the glass plate 6 are nested in the conductive shell 3, and the signal transmission layer one 4 and the signal transmission layer two 5 are horizontally and vertically arranged, and the outer wall of the conductive shell 3 is tightly combined with the inner wall of the metal shell 1.

[0022] It should be noted that the material of the flexible film 2 is polycarbonate, which not only has high impact strength and temperature stability, but also has good optical transparency, the surface of the flexible film 2 is sprayed with a waterproof coating, the bottom of the signal transmission layer one 4 is bonded with a signal sensor one 8, the signal sensor one 8 penetrates the conductive shell 3 and the metal shell 1, and the long side of the signal sensor is parallel to the long side of the metal shell 1.

[0023] The bottom of the signal transmission layer two 5 is bonded with a signal sensor two 9, the signal sensor two 9 penetrates the conductive shell 3 and the metal shell 1, and the long side of the signal sensor is parallel to the short side of the metal shell 1, and the long side of the signal sensor two 9 is vertically arranged with the short side of the signal sensor one 8.

[0024] When the flexible film 2 is pressed, the flexible film 2 presses the signal transmission layer one 4 through the conductive shell 3, so that the signal transmission layer one 4 and the signal transmission layer two 5 are in contact, at this time, the signal transmission layer one 4 and the signal transmission layer two 5 will generate an electric signal respectively, which corresponds to the horizontal coordinate and the vertical coordinate of the touch point, and then the generated electric signal will be transmitted to the processor through the wire, so as to confirm the position of the touch point.

[0025] The upper surface of the flexible film 2 is provided with a silica gel ring 10, the silica gel ring 10 is bonded with the inner wall of the metal shell 1, and the ultraviolet curing glue layer is arranged between the flexible film 2 and the conductive shell 3, between the conductive shell 3 and the signal transmission layer one 4, and between the signal transmission layer two 5 and the glass plate 6.

[0026] It should be noted that the flexible film 2 and the metal shell 1 are sealed by the silica gel ring 10, so as to prevent dust from entering the resistance screen from the connection between the flexible film 2 and the metal shell 1, thereby preventing the dust from affecting the signal transmission of the resistance screen.

[0027] The conductive shell 3 comprises an anti-static flexible plastic shell, and the surface of the anti-static flexible plastic shell is sprayed with a conductive coating;

[0028] It should be noted that the anti-static flexible plastic shell is made of polycarbonate, and the conductive coating is made of graphene.

[0029] In use, the conductive coating conducts the electrons generated on the surface of the flexible film 2 to the metal shell 1, and then the metal shell 1 conducts the electrons out, so as to avoid the influence of the electrons on the normal work of the signal transmission layer one 4 and the signal transmission layer two 5.

[0030] The signal transmission layer one 4 and the signal transmission layer two 5 are both made of ITO film, which is an n-type semiconductor material and has high conductivity, high visible light transmittance, high mechanical hardness and good chemical stability.

[0031] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0032] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An antistatic pure planar resistive screen, characterized in that, The device includes a metal shell (1), and inside the metal shell (1) are arranged, from top to bottom, a flexible film (2), a conductive shell (3), a signal transmission layer one (4), a signal transmission layer two (5), and a glass plate (6). Multiple insulating pillars (7) are provided between the signal transmission layer one (4) and the signal transmission layer two (5). The signal transmission layer one (4), the signal transmission layer two (5), and the glass plate (6) are all nested inside the conductive shell (3). The outer wall of the conductive shell (3) is tightly fitted to the inner wall of the metal shell (1).

2. The antistatic pure planar resistive screen according to claim 1, characterized in that, The upper surface of the flexible film (2) is provided with a silicone ring (10), which is bonded to the inner wall of the metal shell (1). Ultraviolet curable adhesive layers are provided between the flexible film (2) and the conductive shell (3), between the conductive shell (3) and the first signal transmission layer (4), and between the second signal transmission layer (5) and the glass plate (6).

3. The antistatic pure planar resistive screen according to claim 1, characterized in that, The bottom of the signal transmission layer (4) is attached to a signal sensor (8), which penetrates the conductive shell (3) and the metal shell (1), and the long side of the signal sensor is parallel to the long side of the metal shell (1).

4. The antistatic pure planar resistive screen according to claim 1, characterized in that, The bottom of the signal transmission layer 2 (5) is attached with a signal sensor 2 (9). The signal sensor 2 (9) penetrates the conductive shell (3) and the metal shell (1), and the long side of the signal sensor is parallel to the short side of the metal shell (1). The long side of the signal sensor 2 (9) is perpendicular to the short side of the signal sensor 1 (8).

5. The antistatic pure planar resistive screen according to claim 4, characterized in that, The conductive outer shell (3) includes an antistatic flexible plastic shell, the surface of which is coated with a conductive coating.

6. The antistatic pure planar resistive screen according to claim 5, characterized in that, The material of both the first signal transmission layer (4) and the second signal transmission layer (5) is ITO thin film.

7. The antistatic pure planar resistive screen according to claim 5, characterized in that, The insulating pillar (7) is made of unsaturated polyester resin glass fiber reinforced molding compound, and the insulating pillar (7) is bonded to signal transmission layer one (4) and signal transmission layer two (5) respectively.

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