Liquid crystal display screen structure capable of avoiding corrosion of conductive silver paste

Abstract

The utility model discloses a liquid crystal display screen structure capable of avoiding corrosion of conductive silver paste, which comprises an upper piece of glass and a lower piece of glass, an upper polaroid is arranged on the upper surface of the upper piece of glass, a lower polaroid is arranged on the lower surface of the lower piece of glass, a conductive body is arranged on the lower piece of glass, and the conductive silver paste is arranged on the conductive body. And the electric conductor is in contact with the lower glass and the upper polaroid. Due to the fact that the electric conductor is electrically connected with the grounding point on the lower piece of glass, the upper polaroid directly covers the electric conductor, the PSA glue of the upper polaroid is directly conducted with the grounding point on the lower piece of glass through the electric conductor, and therefore static electricity generated by the liquid crystal display module is led out. As conductive silver paste is not needed any more, the problem of corrosion bubbles caused by conduction of the conductive silver paste can be thoroughly avoided, and the quality of the liquid crystal display screen is effectively improved.

Description

Technical Field

[0001] The utility model relates to a liquid crystal display screen, more specifically, to a liquid crystal display screen structure which can avoid corrosion of conductive silver paste. Background Art

[0002] like Figure 1 and Figure 2 As shown, a common liquid crystal display screen includes an upper glass 100, a lower glass 200, an upper polarizer 300, and a lower polarizer 400. The PSA adhesive layer in the upper polarizer 300 has conductive properties. Usually, a conductive silver paste S is applied to the bottom side of the upper polarizer 300 to connect the PSA adhesive layer 3100 of the upper polarizer 300 to the grounding point 201 of the lower glass 200, thereby conducting static electricity generated by the liquid crystal display module. However, due to the solvent components contained in the conductive silver paste S, the PSA adhesive layer 3100 of the upper polarizer 300 will be penetrated and corroded, resulting in bubbles, and even entering the AA area of ​​the glass, affecting the use of the product.

[0003] Chinese invention patent document CN115040780A discloses a silver paste electrode, characterized in that it comprises: a substrate layer; a silver paste electrode layer, the silver paste electrode layer is arranged on the substrate layer; and a varnish layer, the varnish layer is arranged on the silver paste electrode layer, and the varnish layer covers the silver paste electrode layer, and the varnish layer is doped with conductive particles. The conductive particles include at least one of carbon powder particles, silver powder particles, copper powder particles, nickel powder particles and gold powder particles. The conductive particles include carbon powder particles and silver powder particles, and the weight ratio of the silver powder particles to the carbon powder particles is 1:3 to 1:2. The varnish layer at least completely covers the surface of the silver paste electrode layer away from the substrate layer; and / or, the equivalent diameter of the conductive particles is greater than or equal to 0.2μm and less than or equal to 5μm; and / or, the thickness of the silver paste electrode layer is greater than or equal to 0.1μm and less than or equal to 5μm; and / or, the thickness of the varnish layer is greater than or equal to 0.2μm and less than or equal to 8μm; and / or, the silver paste electrode further comprises a backing layer, and the backing layer is arranged on the surface of the substrate layer away from the silver paste electrode layer. The patent also discloses a method for making a silver paste electrode, characterized in that it comprises: arranging a silver paste solution on the surface of the substrate layer, curing the silver paste solution to form a silver paste electrode layer; arranging a varnish solution on the surface of the silver paste electrode layer, wherein the varnish solution is doped with conductive particles, and curing the varnish solution to form a varnish layer. In the varnish solution, the proportion of the conductive particles is greater than or equal to 0.1wt% and less than or equal to 15wt%. In the step of curing the silver paste solution to form the silver paste electrode layer, the silver paste solution is cured by baking, the baking temperature is greater than or equal to 40°C and less than or equal to 180°C, and the baking time is greater than or equal to 5 minutes and less than or equal to 120 minutes. In the step of curing the varnish solution to form the varnish layer, the varnish solution is cured by heating or by ultraviolet light irradiation; when the varnish solution is cured by heating, the heating temperature is greater than or equal to 40°C and less than or equal to 180°C, and the heating time is greater than or equal to 2 minutes and less than or equal to 120 minutes; when the varnish solution is cured by ultraviolet light irradiation, the energy density of the ultraviolet light is 1mj / cm2 to 10^6mj / cm2. In the step of arranging the silver paste solution on the surface of the substrate layer, the silver paste solution is printed on the substrate layer by screen printing, and the mesh size of the screen printing plate used in the screen printing process is greater than or equal to 100 mesh and less than or equal to 500 mesh; and / or, in the step of arranging the varnish solution on the surface of the silver paste electrode layer, the varnish solution is printed on the silver paste electrode layer by screen printing, and the mesh size of the screen printing plate used in the screen printing process is greater than or equal to 100 mesh and less than or equal to 500 mesh.

[0004] Obviously, the varnish layer containing conductive particles in the patent is not easily broken down, effectively preventing the silver paste electrode layer from losing effective protection and being corroded and oxidized. This structure cannot solve the problem of existing conductive silver paste corroding the PSA adhesive layer of the polarizer. Utility Model Content

[0005] Based on this, it is necessary to provide a liquid crystal display structure that avoids corrosion by conductive silver paste in view of the above technical problems, characterized in that the liquid crystal display structure that avoids corrosion by conductive silver paste comprises an upper glass and a lower glass, an upper polarizer is provided on the upper surface of the upper glass, a lower polarizer is provided on the lower surface of the lower glass, a conductor is provided on the lower glass, and the conductor is in contact with both the lower glass and the upper polarizer. Since the conductor is electrically connected to the grounding point on the lower glass, the upper polarizer directly covers the top of the conductor, and the PSA glue of the upper polarizer is directly connected to the grounding point on the lower glass through the conductor, thereby deriving the static electricity generated by the liquid crystal display module. Since conductive silver paste is no longer needed, the corrosion bubble problem caused by the conduction of conductive silver paste can be completely avoided, and the quality of the liquid crystal display is effectively improved.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A liquid crystal display structure for avoiding corrosion by conductive silver paste, characterized in that the liquid crystal display structure for avoiding corrosion by conductive silver paste comprises an upper glass and a lower glass, an upper polarizer is arranged on the upper surface of the upper glass, a lower polarizer is arranged on the lower surface of the lower glass, a conductor is arranged on the lower glass, and the conductor keeps contact with both the lower glass and the upper polarizer.

[0008] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the conductor is electrically connected to the grounding point on the lower glass.

[0009] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the conductor is conductive glue.

[0010] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the conductor is conductive foam.

[0011] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the height of the conductor is consistent with that of the lower glass.

[0012] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the conductor is rectangular.

[0013] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the conductor is circular.

[0014] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, a penetrating heat dissipation cavity is provided at the center of the conductor.

[0015] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion by conductive silver paste provided by the utility model, the extended area of ​​the heat dissipation cavity is larger than half of the extended area of ​​the conductor.

[0016] As a preferred implementation of the liquid crystal display screen structure for avoiding corrosion of conductive silver paste provided by the utility model, a plurality of parallel heat dissipation grooves are arranged in the conductive body.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a liquid crystal display screen structure that avoids corrosion caused by conductive silver paste. Since the conductor is electrically connected to the grounding point on the lower glass, the upper polarizer directly covers the top of the conductor, and the PSA glue of the upper polarizer is directly connected to the grounding point on the lower glass through the conductor, thereby deriving the static electricity generated by the liquid crystal display module. Since conductive silver paste is no longer needed, the corrosion bubble problem caused by the conductive silver paste conduction can be completely avoided, and the quality of the liquid crystal display screen is effectively improved.

[0019] In addition, the conductor can be made circular. A heat dissipation cavity can be provided through the center of the conductor. The extended area of ​​the heat dissipation cavity is greater than half of the extended area of ​​the conductor. The heat dissipation cavity in the center of the conductor can be used to dissipate the heat on the conductor, thereby improving the reliability and stability of the conductor.

[0020] In addition, the conductor may be provided with a plurality of heat dissipation slots arranged in parallel. The heat on the conductor may be further dissipated by the heat dissipation slots arranged in parallel, thereby further improving the reliability and stability of the conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a partial structure of a liquid crystal display screen in the prior art;

[0023] Figure 2 for Figure 1 Schematic diagram of the hierarchical structure of the LCD screen;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the upper polarizer of the liquid crystal display screen;

[0025] Figure 4 It is a partial structural schematic diagram of a liquid crystal display screen for avoiding corrosion of conductive silver paste according to the utility model;

[0026] Figure 5 for Figure 4 Schematic diagram of the hierarchical structure of a liquid crystal display screen to avoid corrosion by conductive silver paste;

[0027] Figure 6 It is a structural schematic diagram of another embodiment of the liquid crystal display screen structure for avoiding corrosion of conductive silver paste of the utility model;

[0028] Figure 7 It is a structural schematic diagram of another embodiment of the liquid crystal display screen structure for avoiding corrosion of conductive silver paste of the utility model;

[0029] Figure 8 It is a structural schematic diagram of another embodiment of the liquid crystal display screen structure for avoiding corrosion of conductive silver paste of the utility model;

[0030] The markings in the figure are as follows: 1. upper glass; 2. lower glass; 21. grounding point; 3. upper polarizer; 4. lower polarizer; 5. conductor; 51. heat dissipation cavity; 52. heat dissipation groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background technology, in the prior art, for liquid crystal display screens, common liquid crystal display screens include an upper glass 100, a lower glass 200, an upper polarizer 300, and a lower polarizer 400. The PSA adhesive layer in the upper polarizer 300 will have conductive properties. Usually, a conductive silver paste S is applied to the bottom side of the upper polarizer 300 to connect the PSA adhesive layer 3100 of the upper polarizer 300 to the grounding point 201 of the lower glass 200, thereby deriving the static electricity generated by the liquid crystal display module. However, due to the solvent components contained in the conductive silver paste S, the PSA adhesive layer 3100 of the upper polarizer 300 will be penetrated and corroded, resulting in the appearance of bubbles, and even entering the AA area of ​​the glass, affecting the use of the product.

[0033] In order to solve this technical problem, the utility model provides a liquid crystal display structure that avoids corrosion by conductive silver paste, comprising an upper glass 1 and a lower glass 2, wherein an upper polarizer 3 is provided on the upper surface of the upper glass 1, and a lower polarizer 4 is provided on the lower surface of the lower glass 2, and a conductor 5 is provided on the lower glass 2, and the conductor 5 is in contact with both the lower glass 2 and the upper polarizer 3. The conductor 5 is electrically connected to a grounding point 21 on the lower glass 2. The conductor 5 is a conductive glue. Alternatively, the conductor 5 is a conductive foam.

[0034] Through the above structural design, since the conductor 5 is electrically connected to the grounding point 21 on the lower glass 2, the upper polarizer 3 directly covers the conductor 5, and the PSA glue of the upper polarizer 3 is directly connected to the grounding point 21 on the lower glass 2 through the conductor 5, thereby conducting static electricity generated by the liquid crystal display module. Since conductive silver paste is no longer needed, the corrosion bubble problem caused by the conductive silver paste conduction can be completely avoided, and the quality of the liquid crystal display screen is effectively improved.

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Example 1

[0039] like Figure 4 and Figure 5As shown, the liquid crystal display structure for avoiding corrosion by conductive silver paste comprises an upper glass 1 and a lower glass 2, an upper polarizer 3 is provided on the upper surface of the upper glass 1, a lower polarizer 4 is provided on the lower surface of the lower glass 2, a conductor 5 is provided on the lower glass 2, and the conductor 5 is in contact with both the lower glass 2 and the upper polarizer 3.

[0040] The conductor 5 is electrically connected to the grounding point 21 on the lower glass 2 .

[0041] It should be noted that the conductor 5 is a conductive glue. Alternatively, the conductor 5 is a conductive foam.

[0042] In addition, the height of the conductor 5 is consistent with that of the lower glass 2 .

[0043] In addition, the conductor 5 has a rectangular shape.

[0044] The working mode of this embodiment is described below.

[0045] Since the conductor 5 is electrically connected to the grounding point 21 on the lower glass 2, the upper polarizer 3 directly covers the conductor 5, and the PSA glue of the upper polarizer 3 is directly connected to the grounding point 21 on the lower glass 2 through the conductor 5, thereby conducting static electricity generated by the liquid crystal display module. Since conductive silver paste is no longer needed, the corrosion bubble problem caused by the conductive silver paste conduction can be completely avoided, effectively improving the quality of the liquid crystal display.

[0046] Example 2

[0047] like Figure 6 and Figure 7 As shown, the liquid crystal display screen structure for avoiding corrosion of the conductive silver paste provided in Example 1 is further optimized. Specifically, the conductor 5 is circular.

[0048] It should be noted that a penetrating heat dissipation cavity 51 may be provided at the center of the conductor 5 .

[0049] In addition, the extended area of ​​the heat dissipation cavity 51 is larger than half of the extended area of ​​the conductor 5 .

[0050] The working mode of this embodiment is described below.

[0051] The heat dissipation cavity 51 at the center of the conductor 5 can be used to dissipate the heat on the conductor 5 , thereby improving the reliability and stability of the conductor 5 .

[0052] Example 3

[0053] like Figure 8 As shown, the liquid crystal display screen structure for avoiding corrosion of the conductive silver paste provided in Example 1 or 2 is further optimized. Specifically, a plurality of heat dissipation grooves 52 arranged in parallel are provided in the conductor 5.

[0054] The working mode of this embodiment is described below.

[0055] By utilizing the heat dissipation slots 52 arranged in parallel, the heat on the conductor 5 can be further dissipated, thereby further improving the reliability and stability of the conductor 5 .

[0056] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display structure that avoids corrosion by conductive silver paste, It is characterized in that The liquid crystal display screen structure for avoiding corrosion by conductive silver paste comprises an upper glass (1) and a lower glass (2); an upper polarizer (3) is provided on the upper surface of the upper glass (1); a lower polarizer (4) is provided on the lower surface of the lower glass (2); a conductor (5) is provided on the lower glass (2); and the conductor (5) is in contact with both the lower glass (2) and the upper polarizer (3).

2. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is electrically connected to the grounding point (21) on the lower glass (2).

3. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is conductive glue.

4. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is conductive foam.

5. The liquid crystal display screen structure for avoiding corrosion of conductive silver paste according to claim 1, It is characterized in that The height of the conductor (5) is consistent with that of the lower glass (2).

6. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is rectangular.

7. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is circular.

8. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that A penetrating heat dissipation cavity (51) is provided at the center of the conductor (5).

9. The liquid crystal display screen structure for avoiding corrosion of conductive silver paste according to claim 8, It is characterized in that The extended area of ​​the heat dissipation cavity (51) is greater than half the extended area of ​​the conductor (5).

10. The liquid crystal display screen structure for avoiding corrosion by conductive silver paste according to claim 1, It is characterized in that The conductor (5) is provided with a plurality of heat dissipation grooves (52) arranged in parallel.

Images