Antistatic glass plate

Abstract

The utility model discloses an antistatic glass plate which comprises an upper glass plate, a lower glass plate and a silver paste block, the upper glass plate is arranged above the lower glass plate, an ITO wiring structure is arranged on the lower glass plate, a groove is formed in the contact face of the lower glass plate and the upper glass plate, the silver paste block is arranged in the groove, the ITO wiring structure is connected with the silver paste block, the groove and the silver paste block are both of a cuboid structure, and the ITO wiring structure is connected with the groove. The top face, with the largest area, of the groove is attached to the upper glass. According to the design, the contact area of the silver paste block and the upper glass plate is increased, static electricity generated on the upper glass plate is led into the ITO wiring structure from the silver paste block and then led out to the GND end of the circuit board from the ITO wiring structure, the static electricity is finally led out from the GND end, the conductive performance of the upper glass plate and the silver paste block is improved, and the service life of the upper glass plate is prolonged. Therefore, the antistatic capability of the product is improved.

Description

Technical Field

[0001] The utility model relates to the field of touch screens, in particular to an antistatic glass plate. Background Art

[0002] In the prior art, when a user performs touch operation on the upper glass plate of the touch screen, static electricity is easily generated. If the static electricity on the glass plate is not discharged in time, it will affect the sensitivity of the touch operation and reduce the user experience. In the prior art, a cube-shaped groove is set on the lower glass plate, and the groove is filled with a cube-shaped conductive metal. However, the contact area between the cube-shaped conductive metal and the upper glass plate is small, resulting in poor contact between the conductive metal and the upper glass plate, which is easy to cause a virtual disconnection between the two, affecting the touch sensitivity. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an antistatic glass plate.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An antistatic glass plate comprises: an upper glass plate, a lower glass plate and a silver paste block; the upper glass plate is arranged above the lower glass plate, an ITO wiring structure is arranged on the lower glass plate, a groove is opened on the contact surface of the lower glass plate with the upper glass plate, the silver paste block is arranged in the groove, the ITO wiring structure is connected to the silver paste block, the groove and the silver paste block are both rectangular structures, and the top surface of the groove with the largest area is bonded to the upper glass.

[0006] In one embodiment, the number of the grooves and the number of the silver paste blocks are both set to two, the two grooves are respectively arranged on both sides of the lower glass plate, and the two silver paste blocks are filled in the grooves.

[0007] In one embodiment, the material of the silver paste block is silver material.

[0008] In one embodiment, the size of the groove is 1.2mm*0.8mm.

[0009] In one embodiment, an optical adhesive layer is further included, and the upper glass plate and the lower glass plate are bonded to each other via the optical adhesive layer.

[0010] In one embodiment, the optical adhesive layer is an OCA adhesive layer.

[0011] In one of the embodiments, an upper polarizer is further included, and the upper polarizer is arranged above the upper glass plate.

[0012] In one of the embodiments, a circuit board is further included, and the ITO wiring structure is electrically connected to the GND terminal of the circuit board.

[0013] In one embodiment, the circuit board is an FPC board.

[0014] In one of the embodiments, a plurality of capacitors and a plurality of resistors are arranged on the FPC board, and a steel sheet is arranged on the back of the capacitors and the resistors.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] 1. The anti-static glass plate of the utility model is provided with an upper glass plate, a lower glass plate and a silver paste block, the groove is provided with a rectangular structure, and the silver paste block is provided with a rectangular structure. In the prior art, the groove and the silver paste block are provided with a cube structure. Usually, due to the poor contact between the silver paste block and the upper glass plate, the overlap is broken. The design of the utility model increases the contact area between the silver paste block and the upper glass plate, so that the static electricity generated on the upper glass plate is introduced from the silver paste block into the ITO wiring structure, and then exported from the ITO wiring structure to the GND end of the circuit board. The static electricity is finally exported from the GND end, which improves the conductive performance of the upper glass plate and the silver paste block, thereby improving the anti-static ability of the product and the touch sensitivity.

[0017] 2. In the same groove volume, the contact surface between the silver block in the groove of the utility model and the upper glass plate is larger, and the conductivity is higher without increasing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 This is a schematic structural diagram of an antistatic glass plate in one embodiment of the utility model;

[0020] Figure 2 Another structural schematic diagram of an antistatic glass plate in an embodiment of the utility model.

[0021] Reference numerals:

[0022] An upper glass plate 10 , a lower glass plate 20 , a silver paste block 30 , and an upper polarizer 40 . DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] See also Figure 1 and 2The present application proposes an antistatic glass plate installed on a touch screen, comprising: an upper glass plate 10, a lower glass plate 20 and a silver paste block 30. Specifically, the upper glass plate 10 is arranged above the lower glass plate 20, and the upper glass plate 10 serves as a user touch surface or an outer surface of a display screen. An ITO wiring structure is arranged on the lower glass plate 20. The lower glass plate 20 is provided with a groove on the contact surface with the upper glass plate 10, and the groove is used to fill the silver paste block 30. The ITO wiring structure is connected to the silver paste block 30. Both the groove and the silver paste block 30 are rectangular structures, and the top surface of the groove with the largest area is bonded to the upper glass, thereby increasing the contact area between the upper glass plate 10 and the silver paste block 30, thereby improving the success rate of contact. Among them, the silver paste block 30 is made of metallic silver and has good conductivity. The groove is arranged as a rectangular structure, and the silver paste block 30 is arranged as a rectangular structure. In the prior art, the groove and the silver paste block 30 are set as a cubic structure. Usually, due to the poor contact between the silver paste block 30 and the upper glass plate 10, the overlap is broken. The design of the utility model increases the contact area between the silver paste block 30 and the upper glass plate 10, so that the static electricity generated on the upper glass plate 10 is introduced from the silver paste block 30 to the ITO wiring structure, improving the conductivity of the upper glass plate 10 and the silver paste block 30, thereby improving the anti-static ability of the product. Preferably, the size of the groove is 1.2mm*0.8mm.

[0025] Please refer again Figure 1 In order to further improve the antistatic performance of the upper glass plate 10, the number of grooves and silver paste blocks 30 is set to two, and the two grooves are respectively arranged on both sides of the lower glass plate 20, and the two silver paste blocks 30 are filled in the grooves, so that the static electricity in the upper glass plate 10 can be conducted through the two silver paste blocks 30, further enhancing the antistatic performance.

[0026] In one embodiment, the silver paste block 30 fits tightly with the groove, ensuring that the silver paste block 30 is electrically connected to the ITO wiring structure at the edge of the groove, making the connection between the silver paste block 30 and the ITO wiring structure more reliable.

[0027] Furthermore, the antistatic glass plate also includes an optical adhesive layer, and the upper glass plate 10 and the lower glass plate 20 are bonded by the optical adhesive layer. Among them, the optical adhesive layer is an OCA adhesive layer, and the OCA adhesive layer has good light transmittance, and can clearly present the pattern displayed by the liquid crystal molecules on the liquid crystal screen. Further, the antistatic glass plate also includes an upper polarizer 40, which is arranged above the upper glass plate 10. The polarizer can filter certain light that is not conducive to the display of the liquid crystal screen, thereby presenting a soft and clear picture in the upper glass plate 10. Among them, the silver paste block 30 does not contact the polarizer.

[0028] In another embodiment, the anti-static glass plate also includes a circuit board, and the ITO wiring structure is electrically connected to the GND end of the circuit board, so that the static electricity generated on the upper glass plate 10 is introduced from the silver paste block 30 into the ITO wiring structure, and then exported from the ITO wiring structure to the GND end of the circuit board. The static electricity is finally exported from the GND end to prevent static electricity from damaging other components in the product.

[0029] Furthermore, the circuit board is an FPC board. Since the material of the FPC board is soft, it can be folded to reduce the volume of the product, thereby reducing the space occupied by the user. In addition, the FPC board is provided with a number of capacitors and a number of resistors, which together form a circuit with certain functions. The FPC board is provided with steel sheets on the back of the capacitors and resistors to support the weight of the capacitors and resistors and prevent the FPC board from breaking due to the capacitors and resistors.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An antistatic glass plate, characterized in that: include: An upper glass plate, a lower glass plate and a conductive silver paste block; The upper glass plate is arranged above the lower glass plate, and an ITO wiring structure is arranged in the lower glass plate. The lower glass plate has a groove on the contact surface with the upper glass plate, and the silver paste block is arranged in the groove. The ITO wiring structure is connected to the silver paste block. The groove and the silver paste block are both rectangular structures, and the top surface of the groove with the largest area is bonded to the upper glass.

2. The antistatic glass plate according to claim 1, characterized in that: The number of the grooves and the number of the silver paste blocks are both set to two, the two grooves are respectively arranged on both sides of the lower glass plate, and the two silver paste blocks are filled in the grooves.

3. The antistatic glass plate according to claim 1, characterized in that: The material of the silver paste block is silver material.

4. The antistatic glass sheet according to claim 1, characterized in that: The size of the groove is 1.2mm*0.8mm.

5. The antistatic glass plate according to claim 1, characterized in that: It also includes an optical adhesive layer, and the upper glass plate and the lower glass plate are bonded together by the optical adhesive layer.

6. The antistatic glass plate according to claim 5, characterized in that: The optical adhesive layer is an OCA adhesive layer.

7. The antistatic glass sheet according to claim 1, characterized in that: It also includes an upper polarizer, which is arranged above the upper glass plate.

8. The antistatic glass plate according to claim 1, characterized in that: It also includes a circuit board, and the ITO wiring structure is electrically connected to the GND end of the circuit board.

9. The antistatic glass plate according to claim 8, characterized in that: The circuit board is an FPC board.

10. The antistatic glass sheet according to claim 9, characterized in that: The FPC board is provided with a plurality of capacitors and a plurality of resistors, and the FPC board is provided with steel sheets on the backs of the capacitors and the resistors.

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