Liquid crystal screen capable of ensuring static electricity extraction

Abstract

The utility model discloses a liquid crystal screen capable of ensuring static electricity lead-out, which comprises a color film substrate, an array substrate, an FPC (flexible printed circuit) and conductive silver paste, an ITO (indium tin oxide) coating is arranged on the upper surface of the color film substrate, the ITO coating is provided with at least two static electricity lead-out loops, and the two static electricity lead-out loops comprise a first static electricity lead-out loop and a second static electricity lead-out loop; the array substrate is arranged below the color film substrate, and the array substrate is longer than the color film substrate and extends outwards to form a step; the FPC is bound on the upper surface of the array substrate at the step; the conductive silver paste is arranged on the side edge, close to the step, of the color film substrate and the upper surface of the array substrate, the conductive silver paste comprises first conductive silver paste and second conductive silver paste which are arranged on the two sides of the FPC, and the two ends of the first conductive silver paste are electrically connected with the first static leading-out loop and the grounding end of the FPC respectively; the two ends of the second conductive silver paste are electrically connected with the second static leading-out loop and the grounding end of the FPC respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to a liquid crystal screen that ensures the extraction of static electricity. Background Art

[0002] The color filter substrate of a traditional liquid crystal display usually does not have an ITO coating, so it is difficult to conduct the static electricity here, which easily causes the liquid crystal display to be damaged by static electricity. Therefore, some products begin to set an ITO coating on the color filter substrate to conduct the static electricity through the ITO coating. However, it is found in actual use that these ITO coatings usually have only one loop, so if an abnormality occurs in a certain area of the loop, the static electricity of the entire loop cannot be conducted, and then the static electricity accumulates here, ultimately damaging the liquid crystal display, and it cannot well ensure the extraction of static electricity. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to ensure that static electricity can be effectively conducted, avoid damage to the liquid crystal display after static electricity accumulation, and improve the competitiveness of the product.

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

[0005] To solve the above technical problem, the utility model provides a liquid crystal screen that ensures the extraction of static electricity, which includes a color filter substrate, an array substrate, an FPC, and conductive silver paste. The upper surface of the color filter substrate is provided with an ITO coating, and the ITO coating is provided with at least two static electricity extraction loops, and the two static electricity extraction loops include a first static electricity extraction loop and a second static electricity extraction loop; the array substrate is arranged below the color filter substrate, and the array substrate is longer than the color filter substrate and extends outwards to form a step; the FPC is bonded to the upper surface of the array substrate at the step; the conductive silver paste is arranged on the side of the color filter substrate near the step and the upper surface of the array substrate, and the conductive silver paste includes a first conductive silver paste and a second conductive silver paste arranged on both sides of the FPC. The two ends of the first conductive silver paste are respectively electrically connected to the first static electricity extraction loop and the ground end of the FPC, and the two ends of the second conductive silver paste are respectively electrically connected to the second static electricity extraction loop and the ground end of the FPC.

[0006] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the FPC includes a body, a reinforcing plate and a connector. The reinforcing plate is fixed on the upper surface of the end of the body. Fixing parts extend outwards from both ends of the reinforcing plate, and both of the fixing parts extend beyond the edge of the body. First strong magnetic blocks are fixed on the lower surfaces of both of the fixing parts. The connector is arranged below the body, and two second strong magnetic blocks corresponding to the two first strong magnetic blocks are fixed on the connector.

[0007] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, two grooves are formed in the connector, and the two second strong magnetic blocks are respectively fixed in the two grooves.

[0008] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, chamfers are arranged at the edges of the grooves.

[0009] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the chamfers are right angles.

[0010] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the chamfers are rounded corners.

[0011] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the external dimension of the second strong magnetic block is larger than that of the first strong magnetic block, and the external dimension of the groove corresponds to the external dimensions of the first strong magnetic block and the second strong magnetic block.

[0012] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the depth of the groove is equal to the sum of the thicknesses of the first strong magnetic block and the second strong magnetic block.

[0013] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the materials of the first strong magnetic block and the second strong magnetic block are both neodymium iron boron strong magnets.

[0014] As a preferred embodiment of the liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, the first strong magnetic block and the second strong magnetic block have different colors.

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

[0016] Since the ITO coating layer includes at least two static electricity lead - out circuits, the first static electricity lead - out circuit is electrically connected to the grounding end of the FPC through the first conductive silver paste on one side, and the second static electricity lead - out circuit is electrically connected to the grounding end of the FPC through the second conductive silver paste on the other side. Even when one of the static electricity lead - out circuits is damaged and cannot normally lead out static electricity, there is at least another static electricity lead - out circuit that can still work normally. Moreover, the first conductive silver paste and the second conductive silver paste are also distributed on both sides of the FPC. Even if the conductive silver paste on one side fails, the conductive silver paste on the other side can still continue to work and lead out static electricity, ensuring that static electricity can be effectively led out, avoiding damage to the liquid crystal display screen after static electricity accumulation, and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a liquid crystal display screen that ensures the lead - out of static electricity provided by the present utility model.

[0019] Figure 2 is Figure 1 a top view of

[0020] Figure 3 is Figure 1 an improved structural schematic diagram of the FPC in

[0021] Explanation of the reference numerals in the drawings:

[0022] Color filter substrate 1; Array substrate 2; FPC 3; Conductive silver paste 4; ITO coating layer 5; First static electricity lead - out circuit 51; Second static electricity lead - out circuit 52; First conductive silver paste 41; Second conductive silver paste 42;

[0023] Body 31; Reinforcing plate 32; Connector 33; Fixing part 34; First strong magnetic block 35; Second strong magnetic block 36; Groove 37. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] The present utility model provides a liquid crystal display screen for ensuring static electricity extraction, which includes a color filter substrate, an array substrate, an FPC, and conductive silver paste. An ITO coating is provided on the upper surface of the color filter substrate, and at least two static electricity extraction circuits are provided on the ITO coating. The two static electricity extraction circuits include a first static electricity extraction circuit and a second static electricity extraction circuit; the array substrate is disposed below the color filter substrate, and the array substrate is longer than the color filter substrate and extends outwards to form a step; the FPC is bonded to the upper surface of the array substrate at the step; the conductive silver paste is provided on the side of the color filter substrate near the step and the upper surface of the array substrate. The conductive silver paste includes a first conductive silver paste and a second conductive silver paste disposed on both sides of the FPC. The two ends of the first conductive silver paste are respectively electrically connected to the first static electricity extraction circuit and the ground terminal of the FPC, and the two ends of the second conductive silver paste are respectively electrically connected to the second static electricity extraction circuit and the ground terminal of the FPC.

[0028] Since the ITO coating includes at least two static electricity lead-out circuits, the first static electricity lead-out circuit is electrically connected to the ground terminal of the FPC through the first conductive silver paste on one side, and the second static electricity lead-out circuit is electrically connected to the ground terminal of the FPC through the second conductive silver paste on the other side. Even when one of the static electricity lead-out circuits is damaged and cannot normally lead out the static electricity, there is at least another static electricity lead-out circuit that can still work properly. Moreover, the first conductive silver paste and the second conductive silver paste are also distributed on both sides of the FPC. Even if the conductive silver paste on one side is abnormal, the conductive silver paste on the other side can still continue to work and lead out the static electricity, ensuring that the static electricity can be effectively led out, avoiding damage to the liquid crystal display screen after static electricity accumulation, and improving the competitiveness of the product.

[0029] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings. The following describes the present invention in detail with reference to the drawings and embodiments. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] Please refer to Figure 1 and Figure 2, a liquid crystal display screen for ensuring static electricity extraction provided by the present utility model, which comprises a color filter substrate 1, an array substrate 2, an FPC 3 and conductive silver paste 4. An ITO coating 5 is provided on the upper surface of the color filter substrate 1. The ITO coating 5 is provided with at least two static electricity extraction circuits. The two static electricity circuits include a first static electricity extraction circuit 51 and a second static electricity extraction circuit 52. In this embodiment, both the first static electricity extraction circuit 51 and the second static electricity extraction circuit 52 are in a counterclockwise spiral shape. In other embodiments, the static electricity circuits can also be other shapes, or a combination of multiple static electricity circuits, as long as they can divide the static electricity into different circuits for extraction; The array substrate 2 is disposed below the color filter substrate 1. The array substrate 2 is longer than the color filter substrate 1 and extends outwards to form a step; The FPC 3 is bonded to the upper surface of the array substrate 2 at the step; The conductive silver paste 4 is provided on the side of the color filter substrate 1 near the step and the upper surface of the array substrate 2. The conductive silver paste 4 includes a first conductive silver paste 41 and a second conductive silver paste 42 disposed on both sides of the FPC 3. The two ends of the first conductive silver paste 41 are respectively electrically connected to the first static electricity extraction circuit 51 and the ground terminal of the FPC 3, and the two ends of the second conductive silver paste 42 are respectively electrically connected to the second static electricity extraction circuit 52 and the ground terminal of the FPC 3. Since the ITO coating 5 includes at least two static electricity extraction circuits, the first static electricity extraction circuit 51 is electrically connected to the ground terminal of the FPC 3 through the first conductive silver paste 41 on one side, and the second static electricity extraction circuit 52 is electrically connected to the ground terminal of the FPC 3 through the second conductive silver paste 42 on the other side. Even when one of the static electricity extraction circuits is damaged and cannot normally export static electricity, there is at least another static electricity extraction circuit that can still work normally. Moreover, the first conductive silver paste 41 and the second conductive silver paste 42 are also distributed on both sides of the FPC 3. Even if the conductive silver paste 4 on one side is abnormal, the conductive silver paste 4 on the other side can still continue to work to export static electricity, ensuring that static electricity can be effectively exported, avoiding damage to the liquid crystal display screen after static electricity accumulation, and improving the competitiveness of the product.

[0031] Please refer to Figure 3, as a further optimized solution of Embodiment 1, in this embodiment, the FPC 3 includes a body 31, a reinforcing plate 32, and a connector 33. The reinforcing plate 32 is fixed to the upper surface of the end of the body 31. Fixing parts 34 extend outward from both ends of the reinforcing plate 32. Both fixing parts 34 extend beyond the edge of the body 31. First strong magnetic blocks 35 are fixed to the lower surfaces of the two fixing parts 34. The connector 33 is arranged below the body 31, and two second strong magnetic blocks 36 corresponding to the two first strong magnetic blocks 35 are fixed to the connector 33. Since the reinforcing plate 32 is fixed to the upper surface of the body 31, the first strong magnetic blocks 35 are fixed to both ends of the reinforcing plate 32, and the two second strong magnetic blocks 36 corresponding to the two first strong magnetic blocks 35 are fixed to the connector 33. When the body 31 and the connector 33 are installed, as long as the two ends of the body 31 are close to the connector 33, the first strong magnetic blocks 35 at both ends of the body 31 and the second strong magnetic blocks 36 at both ends of the connector 33 will attract and approach each other and be fixed. The body 31 and the connector 33 can achieve automatic alignment and tight connection. The assembly structure of this FPC 3 has fewer assembly steps. Only by approaching the body 31 and the connector 33 can the assembly be achieved. The assembly efficiency of the FPC 3 can be greatly improved, and the automatic assembly of the FPC 3 and the connector 33 can be easily realized. The fewer the assembly steps, the lower the probability of defective products of the FPC 3 during assembly, thus avoiding the situation that the products assembled with it cannot work properly after assembly defects, thereby avoiding abnormal product operation, reducing the defective rate of the products, thus greatly reducing the production and manufacturing costs of the FPC 3, and further improving the product competitiveness of the FPC 3, so as to meet the increasing quality requirements of enterprises.

[0032] Further, two grooves 37 are formed in the connector 33, and the two second strong magnetic blocks 36 are respectively fixed in the two grooves 37, so that the fitting of the body 31 and the connector 33 is more compact, improving the reliability of the assembly, thus greatly reducing the production and manufacturing costs of the FPC 3, and further improving the product competitiveness of the FPC 3, so as to meet the increasing quality requirements of enterprises.

[0033] Further, chamfers are provided at the edges of the grooves 37. More preferably, the chamfers are right angles or rounded corners, so that when the first strong magnetic block 35 approaches the second strong magnetic block 36, it can accurately fall into the groove 37 under the guiding action of the chamfer, improving the accuracy and reliability of the assembly, thus greatly reducing the production and manufacturing costs of the FPC 3, and further improving the product competitiveness of the FPC 3.

[0034] Furthermore, the outer dimension of the second strongest magnetic block 36 is larger than that of the first strongest magnetic block 35, and the outer dimension of the groove 37 corresponds to those of the first strongest magnetic block 35 and the second strongest magnetic block 36, so that the second strongest magnetic block 36 can be firmly fixed in the groove 37. Even if the suction force of the first strongest magnetic block 35 is large, the second strongest magnetic block 36 will not be sucked out, improving the reliability of assembly. As a result, the production and manufacturing costs of the FPC3 are greatly reduced, thereby enhancing the product competitiveness of the FPC3 to meet the increasing quality requirements of the enterprise.

[0035] Furthermore, the depth of the groove 37 is equal to the sum of the thicknesses of the first strongest magnetic block 35 and the second strongest magnetic block 36, so that the assembly of the body 31 and the connector 33 can be smoothly fitted without gaps. More preferably, a buffer pad can be provided on the contact surface between the body 31 and the connector 33, and a buffer groove corresponding to the buffer pad is provided on the connector 33, so as to obtain buffering during the fitting assembly and avoid damaging the body 31 or the connector 33. More preferably, the buffer pad is a rubber pad, which has good effects, low cost and high cost performance.

[0036] Furthermore, the materials of both the first strongest magnetic block 35 and the second strongest magnetic block 36 are neodymium iron boron strong magnets, and the technology of neodymium iron boron strong magnets is mature and the cost performance is high.

[0037] Furthermore, the colors of the first strongest magnetic block 35 and the second strongest magnetic block 36 are different, so that the staff can distinguish the first strongest magnetic block 35 and the second strongest magnetic block 36 during installation.

[0038] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Obviously, the embodiments described above are only a part of the embodiments of this application, rather than all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of this application more thorough and comprehensive. Although this application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made by using the content of the specification and drawings of this application, directly or indirectly applied in other related technical fields, is equally within the scope of patent protection of this application.

Claims

1. A liquid crystal screen that ensures static electricity extraction, characterized in that: It includes: A color film substrate, the upper surface of which is provided with an ITO coating layer, the ITO coating layer is provided with at least two static electricity extraction circuits, the two static electricity extraction circuits include a first static electricity extraction circuit and a second static electricity extraction circuit; An array substrate is disposed below the color filter substrate, wherein the array substrate is longer than the color filter substrate and extends outward to form a step; An FPC is bound to the upper surface of the array substrate located at the step; Conductive silver paste is arranged on the side of the color film substrate near the step and the upper surface of the array substrate, and the conductive silver paste includes a first conductive silver paste and a second conductive silver paste arranged on both sides of the FPC, two ends of the first conductive silver paste are electrically connected to the first electrostatic lead-out loop and the grounding end of the FPC respectively, and two ends of the second conductive silver paste are electrically connected to the second electrostatic lead-out loop and the grounding end of the FPC respectively.

2. The liquid crystal screen for ensuring static electricity extraction according to claim 1, characterized in that: The FPC includes a body, a reinforcement plate and a connector, wherein the reinforcement plate is fixed to the upper surface of the end of the body, both ends of the reinforcement plate have fixing parts extending outward, both fixing parts exceed the edge of the body, and the lower surfaces of the two fixing parts are fixed with first strong magnetic blocks, and the connector is arranged below the body, and two second strong magnetic blocks corresponding to the two first strong magnetic blocks are fixed on the connector.

3. The liquid crystal panel for ensuring static electricity extraction according to claim 2, characterized in that: The connector is provided with two grooves, and the two second strong magnetic blocks are respectively fixed in the two grooves.

4. The liquid crystal panel for ensuring static electricity extraction according to claim 3, characterized in that: The edge of the groove is provided with a chamfer.

5. The liquid crystal panel for ensuring static electricity extraction according to claim 4, characterized in that: The chamfer is a right angle.

6. The liquid crystal panel for ensuring static electricity extraction according to claim 4, characterized in that: The chamfer is a rounded corner.

7. The liquid crystal panel for ensuring static electricity extraction according to claim 3, characterized in that: The outer dimensions of the second strong magnetic block are greater than those of the first strong magnetic block, and the outer dimensions of the groove correspond to those of the first strong magnetic block and the second strong magnetic block.

8. The liquid crystal panel for ensuring static electricity extraction according to claim 3, characterized in that: The depth of the groove is equal to the sum of the thicknesses of the first strong magnetic block and the second strong magnetic block.

9. The liquid crystal panel for ensuring static electricity extraction according to claim 2, characterized in that: The first strong magnetic block and the second strong magnetic block are both made of strong neodymium iron boron magnets.

10. The liquid crystal panel for ensuring static electricity extraction according to claim 2, characterized in that: The first strong magnetic block and the second strong magnetic block have different colors.

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