Incell liquid crystal screen assembly with high antistatic performance

Abstract

The utility model discloses an Incell liquid crystal screen assembly with high antistatic performance, the Incell liquid crystal screen assembly with high antistatic performance comprises LCD lower piece glass and LCD upper piece glass, the lower surface of the LCD lower piece glass is provided with a lower polaroid, the upper surface of the LCD upper piece glass is provided with a high-resistance film layer, the lower polaroid is provided with a lower polaroid, the high-resistance film layer is provided with a lower polaroid, and the lower polaroid is provided with a lower polaroid. An upper polaroid is arranged on the upper surface of the high-resistance film layer, a square-frame-shaped ITO conducting layer is arranged on the edge of the high-resistance film layer, and the ITO conducting layer is electrically connected with a ground wire. When static electricity is generated on the upper piece of LCD glass, the static electricity is rapidly conducted away towards the periphery in the direction F, and static electricity accumulation is effectively prevented from reaching the ground wire from the square-frame-shaped ITO conducting layer, so that the problem of static electricity whitening is effectively solved, the anti-static performance of a product is improved, and the competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model relates to a liquid crystal screen, more specifically, to an Incell liquid crystal screen component with high antistatic performance. Background Art

[0002] For IPS (In-Panel Switching) TFT screens, due to the lateral distribution of pixel electrodes and common VCOM electrodes, they are sensitive to external static electricity. Therefore, a grounded ITO (indium tin oxide conductive glass) film needs to be plated on the upper protective glass as a shielding layer (Shielding ITO). Incell TFT display is an IPS-TFT display that integrates Incell technology with touch function. In order not to shield the touch function of Incell, the resistance of this ITO film is required to be greater than 10^7ohm to form a high-resistance film. Therefore, compared with IPS TFT display with single display function, Incell TFT has much worse anti-static ability because the impedance of this shielding layer is many times larger. When the Incell TFT liquid crystal display is tested for electrostatic discharge, if the static electricity cannot be effectively shielded and released, the static electricity will accumulate on the LCD and cause the liquid crystal to deflect, thereby making the LCD white, affecting the content display and customer experience. As Incell TFT displays are increasingly used in automotive displays, their anti-static ability has also been continuously valued by LCD manufacturers.

[0003] Chinese invention patent document CN114162047A discloses 1. A high-voltage and anti-static liquid crystal rearview mirror, characterized in that it includes a liquid crystal layer, PI alignment film layers are respectively arranged on both sides of the liquid crystal layer, an electrode layer is arranged on one side of the PI alignment film layer, an ITO glass substrate is arranged on one side of the electrode layer, and a surface polarizer and a bottom semi-transparent and semi-reflective film are respectively arranged on one side of the ITO glass substrate; the electrode layer is connected to an FPC, an anti-static line is arranged on one side of the ITO glass substrate, and the anti-static line is connected to the FPC. A surface ITO film shielding layer is arranged between the ITO glass substrate and the surface polarizer. The electrode layer includes an ITO common electrode and an ITO segmented electrode, and the ITO common electrode cooperates with the ITO segmented electrode to realize a circuit switch; the ITO segmented electrode is arranged between the ITO common electrodes; the ITO common electrode is a long strip electrode. The size of the ITO common electrode is: 6-10 mm in length and 0.1-0.5 mm in width. The liquid crystal layer is provided with an antistatic agent layer, and the addition amount of the antistatic agent layer is 100-500PPM. The liquid crystal layer is provided with a plastic ball center powder layer. The region between the surfaces of the ITO glass substrate is provided with a frame glue layer, and the frame glue layer is provided at both ends of the liquid crystal layer; the frame glue layer is provided with a plastic ball glue edge powder layer. The thickness of the liquid crystal layer is 5.5um-6.0um; the refractive index anisotropy ∆n of the liquid crystal layer is 0.083-0.109. The PI alignment film layer includes an upper PI alignment film and a lower PI alignment film, the upper PI alignment film is connected to the ITO segmented electrode, and the lower PI alignment film is connected to the ITO common electrode. The ITO glass substrate includes a surface ITO glass substrate and a bottom ITO glass substrate, the surface ITO glass substrate is a double-sided ITO structure, the surface is coated with a surface ITO film shielding layer, and the bottom is provided with an ITO segmented electrode and an antistatic line; the bottom ITO glass substrate is provided with an ITO common electrode.

[0004] Obviously, the surface of the ITO glass substrate of the liquid crystal box of the patent has an additional ITO film shielding layer. During assembly, a conductive sponge is used to stick to the two ends or steps of the glass without polarizers and grounded through the customer's shell. When static electricity from the outside hits the surface of the rearview mirror, it can be directly introduced through the ITO film shielding layer coating to achieve super anti-static function. However, this structure cannot solve the static electricity problem of existing Incell TFT display screens. Utility Model Content

[0005] Based on this, it is necessary to provide an Incell liquid crystal screen assembly with high antistatic performance for the above technical problems. The Incell liquid crystal screen assembly with high antistatic performance comprises an LCD lower glass and an LCD upper glass. A lower polarizer is provided on the lower surface of the LCD lower glass, a high-resistance film layer is provided on the upper surface of the LCD upper glass, an upper polarizer is provided on the upper surface of the high-resistance film layer, and a square-shaped ITO conductive layer is provided on the edge of the high-resistance film layer. The ITO conductive layer is electrically connected to the ground wire. When static electricity is generated on the LCD upper glass, the static electricity is quickly conducted to the surroundings along the direction F, from the square-shaped ITO conductive layer to the ground wire, effectively preventing the accumulation of static electricity, thereby effectively solving the problem of static electricity whitening, improving the antistatic performance of the product, and improving the competitiveness of the product.

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

[0007] An Incell liquid crystal screen component with high antistatic performance is characterized in that the Incell liquid crystal screen component with high antistatic performance comprises an LCD lower glass and an LCD upper glass, a lower polarizer is provided on the lower surface of the LCD lower glass, a high-resistance film layer is provided on the upper surface of the LCD upper glass, an upper polarizer is provided on the upper surface of the high-resistance film layer, a square-shaped ITO conductive layer is provided on the edge of the high-resistance film layer, and the ITO conductive layer is electrically connected to a ground wire.

[0008] As a preferred implementation of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, an FPC board is provided at the edge of the LCD lower glass.

[0009] As a preferred implementation of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, the extended area of ​​the LCD lower glass is larger than that of the LCD upper glass.

[0010] As a preferred embodiment of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model,

[0011] A pair of conductive silver paste contacts are arranged on the side edges of the ITO conductive layer, and the conductive silver paste contacts are electrically connected to the ground wire.

[0012] As a preferred embodiment of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model,

[0013] The conductive silver paste contact covers the high resistance film layer and the edge of the LCD upper glass, and the conductive silver paste contact is in contact with the LCD lower glass.

[0014] As a preferred embodiment of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model,

[0015] The cross section of the conductive silver paste contact is rectangular.

[0016] As a preferred implementation of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, the cross-section of the conductive silver paste contact is triangular.

[0017] As a preferred embodiment of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, the side edge of the ITO conductive layer is provided with a long guide column, and the guide column is electrically connected to the ground wire.

[0018] As a preferred implementation of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, the cross section of the guide column is fan-shaped.

[0019] As a preferred implementation of the Incell liquid crystal screen assembly with high antistatic performance provided by the utility model, the cross section of the guide column is trapezoidal.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides an Incell liquid crystal screen component with high antistatic performance. When static electricity is generated on the LCD upper glass, the static electricity is quickly conducted away in the direction F to the surroundings, from the square frame-shaped ITO conductive layer to the ground wire, effectively preventing static electricity accumulation, thereby effectively solving the problem of static electricity whitening, improving the antistatic performance of the product, and enhancing the competitiveness of the product.

[0022] In addition, the cross section of the conductive silver paste contact can be made triangular. Since the cross section of the conductive silver paste contact is triangular, the contact strength of the conductive silver paste contact can be further improved, the contact resistance can be reduced, and the static electricity conduction efficiency can be improved.

[0023] In addition, the side edge of the ITO conductive layer can be provided with a long strip of guide column, and the guide column is electrically connected to the ground wire. The cross section of the guide column is fan-shaped. Or, the cross section of the guide column is trapezoidal. The long strip of guide column can directly form a large-scale contact with the edge of the ITO conductive layer, which can further improve the contact strength of the conductive silver paste contact point, reduce the contact resistance, and thus improve the static electricity conduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 It is a schematic diagram of the hierarchical structure of the Incell liquid crystal screen component with high antistatic performance of the utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of the hierarchical structure of the Incell LCD screen component with high antistatic performance, another perspective;

[0027] Figure 3 This is a schematic structural diagram of another embodiment of the Incell liquid crystal screen assembly with high antistatic performance of the utility model;

[0028] Figure 4 This is a schematic structural diagram of another embodiment of the Incell liquid crystal screen assembly with high antistatic performance of the utility model;

[0029] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the guide column of the Incell liquid crystal panel assembly with high antistatic performance;

[0030] Figure 6 for Figure 4 A schematic cross-sectional structure diagram of another embodiment of a guide column of an Incell liquid crystal screen assembly with high antistatic performance;

[0031] The markings in the figure are as follows: 1. Lower polarizer; 10. Guide column; 2. LCD lower glass; 3. LCD upper glass; 4. High-resistance film layer; 5. ITO conductive layer; 6. Upper polarizer; 7. Conductive silver paste contact; 8. Ground wire; 9. FPC board. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0033] As described in the background technology, the prior art is sensitive to external static electricity for IPS (In-Panel Switching) TFT screens due to the lateral distribution of pixel electrodes and common VCOM electrodes. Therefore, it is necessary to coat a grounded ITO (Indium Tin Oxide Conductive Glass) film on the upper protective glass as a shielding layer (Shielding ITO). Incell TFT display screen is an IPS-TFT display screen that integrates Incell technology with touch function. In order not to shield the touch function of Incell, it is required to make the resistance of this ITO film greater than 10^7ohm to form a high-resistance film. Therefore, compared with IPS TFT display screens with single display function, Incell TFT has a relatively poor anti-static ability because the impedance of this shielding layer is many times larger. When the IncellTFT liquid crystal display screen is tested for electrostatic discharge, if the static electricity cannot be effectively shielded and released, the static electricity will accumulate on the LCD to deflect the liquid crystal, thereby making the LCD white, affecting the content display and customer experience. As Incell TFT display screens are increasingly used in vehicle-mounted displays, their anti-static ability has also been continuously valued by LCD manufacturers.

[0034] In order to solve this technical problem, the utility model provides an Incell liquid crystal screen assembly with high antistatic performance, comprising an LCD lower glass 2 and an LCD upper glass 3, wherein a lower polarizer 1 is provided on the lower surface of the LCD lower glass 2, a high resistance film 4 is provided on the upper surface of the LCD upper glass 3, an upper polarizer 6 is provided on the upper surface of the high resistance film 4, a square frame-shaped ITO conductive layer 5 is provided on the edge of the high resistance film 4, and the ITO conductive layer 5 is electrically connected to a ground wire 8. An FPC board 9 is provided on the edge of the LCD lower glass 2.

[0035] Through the above structural design, when static electricity is generated on the LCD upper glass 3, the static electricity is quickly conducted to the surroundings along the direction F, from the square-shaped ITO conductive layer 5 to the ground wire 8, effectively preventing static electricity accumulation, thereby effectively solving the problem of static electricity whitening, improving the anti-static performance of the product, and enhancing the competitiveness of the product.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] like Figure 1 and Figure 2 As shown, the Incell liquid crystal screen assembly with high antistatic performance includes an LCD lower glass 2 and an LCD upper glass 3, a lower polarizer 1 is provided on the lower surface of the LCD lower glass 2, a high-resistance film layer 4 is provided on the upper surface of the LCD upper glass 3, an upper polarizer 6 is provided on the upper surface of the high-resistance film layer 4, a square-shaped ITO conductive layer 5 is provided on the edge of the high-resistance film layer 4, and the ITO conductive layer 5 is electrically connected to the ground wire 8.

[0040] An FPC board 9 is provided at the edge of the LCD lower glass 2 .

[0041] It should be noted that the extended area of ​​the LCD lower glass 2 is larger than that of the LCD upper glass 3 .

[0042] In addition, a pair of conductive silver paste contacts 7 are provided at the side edges of the ITO conductive layer 5 , and the conductive silver paste contacts 7 are electrically connected to the ground line 8 .

[0043] The conductive silver paste contact 7 covers the edge of the high resistance film layer 4 and the LCD upper glass 3 , and the conductive silver paste contact 7 is in contact with the LCD lower glass 2 .

[0044] It should be noted that

[0045] The cross section of the conductive silver paste contact 7 is rectangular.

[0046] The working mode of this embodiment is described below.

[0047] like Figure 2 As shown, when static electricity is generated on the LCD upper glass 3, the static electricity is quickly conducted away in the direction F to the surroundings, from the square-shaped ITO conductive layer 5 to the ground wire 8, effectively preventing static electricity accumulation, thereby effectively solving the problem of static electricity whitening, improving the anti-static performance of the product, and enhancing the competitiveness of the product.

[0048] like Figure 3 As shown, the Incell liquid crystal screen assembly with high antistatic performance provided in Example 1 is further optimized. Specifically, the cross-section of the conductive silver paste contact 7 is triangular.

[0049] The working mode of this embodiment is described below.

[0050] Since the cross section of the conductive silver paste contact 7 is triangular, the contact strength of the conductive silver paste contact 7 can be further improved, the contact resistance can be reduced, and the static electricity conduction efficiency can be improved.

[0051] like Figures 4 to 6 As shown, the Incell liquid crystal screen assembly with high antistatic performance provided by Example 1 or 2 is further optimized. Specifically, a long guide column 10 is provided on the side edge of the ITO conductive layer 5, and the guide column 10 is electrically connected to the ground wire 8.

[0052] The cross section of the guide column 10 is fan-shaped. Alternatively, the cross section of the guide column 10 is trapezoidal.

[0053] The working mode of this embodiment is described below.

[0054] The long guide column 10 can directly form a wide range of contact with the edge of the ITO conductive layer 5, which can further improve the contact strength of the conductive silver paste contact 7 and reduce the contact resistance, thereby improving the static electricity conduction efficiency.

[0055] 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.

[0056] 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.

[0057] 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. An Incell liquid crystal screen assembly with high antistatic performance, characterized in that: The Incell liquid crystal screen assembly with high antistatic performance comprises an LCD lower glass (2) and an LCD upper glass (3); a lower polarizer (1) is provided on the lower surface of the LCD lower glass (2); a high resistance film layer (4) is provided on the upper surface of the LCD upper glass (3); an upper polarizer (6) is provided on the upper surface of the high resistance film layer (4); a square frame-shaped ITO conductive layer (5) is provided at the edge of the high resistance film layer (4); and the ITO conductive layer (5) is electrically connected to a ground wire (8).

2. The Incell liquid crystal screen assembly with high antistatic performance according to claim 1, characterized in that: An FPC board (9) is provided on the edge of the LCD lower glass (2).

3. The Incell liquid crystal screen assembly with high antistatic performance according to claim 1, characterized in that: The extended area of ​​the LCD lower glass (2) is larger than that of the LCD upper glass (3).

4. The Incell liquid crystal screen assembly with high antistatic performance according to claim 1, characterized in that: A pair of conductive silver paste contacts (7) are provided at the side edges of the ITO conductive layer (5), and the conductive silver paste contacts (7) are electrically connected to the ground wire (8).

5. The Incell liquid crystal screen assembly with high antistatic performance according to claim 4, characterized in that: The conductive silver paste contact (7) covers the high resistance film layer (4) and the edge of the LCD upper glass (3), and the conductive silver paste contact (7) is in contact with the LCD lower glass (2).

6. The Incell liquid crystal display assembly with high antistatic performance according to claim 4, characterized in that: The cross section of the conductive silver paste contact (7) is rectangular.

7. The Incell liquid crystal display assembly with high antistatic performance according to claim 4, characterized in that: The cross section of the conductive silver paste contact (7) is triangular.

8. The Incell liquid crystal display assembly with high antistatic performance according to claim 1, characterized in that: A long guide column (10) is provided on the side edge of the ITO conductive layer (5), and the guide column (10) is electrically connected to the ground wire (8).

9. The Incell liquid crystal display assembly with high antistatic performance according to claim 8, characterized in that: The cross section of the guide column (10) is fan-shaped.

10. The Incell liquid crystal display assembly with high antistatic performance according to claim 8, characterized in that: The cross section of the guide column (10) is trapezoidal.

Images