Antistatic LCD display structure
By opening a avoidance groove on the upper polarizer of the liquid crystal display screen and connecting it with the ground binding point, the anti-static effect is achieved by using the electrostatic conductive layer, which solves the problem of reduced structural strength and risk of electrostatic shock in the prior art, achieving higher structural strength and lower electrostatic risk, while saving material costs.
Patent Information
- Application Number
- CN202421499615.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The antistatic structure of existing LCD displays has the risk of overall strength decreasing and electrostatic damage to the glass, especially because the upper polarizer cannot fully cover the edges and corners of the upper glass, resulting in a decrease in structural strength, and the silver paste is close to the edge of the LCD display, increasing the risk of electrostatic damage.
By opening a barrier groove in the area where the upper polarizer is far away from the AA area, and making the barrier groove face toward the ground binding point, and then connecting and binding the conductive adhesive layer and ground binding point in the polarizer on the side of the barrier groove are connected and bound, the anti-static effect is achieved.
The anti-static effect is achieved, while ensuring that the corner areas of the upper glass are covered by the upper polarizer, thereby increasing the intensity of the overall structure. By shortening the length of the electrostatic conductive layer, the risk of electrostatic damage to the glass is reduced, while reducing the material usage and saving costs.
Smart Images
Figure CN222748806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display screens, in particular to an antistatic liquid crystal display screen structure. Background Art
[0002] Liquid crystal displays are widely used in various electronic devices. Figure 1 As shown, a conventional liquid crystal display structure 10 is shown. The upper surface of the TFT (thin film transistor) glass 11 of the liquid crystal display is covered with a shielding ITO (indium tin oxide) layer. In order to improve the anti-static ability of the liquid crystal display, the upper polarizer 12 must use a high-impedance layer polarizer (AS polarizer), and then the silver paste 13 is applied to contact the PSA adhesive layer on the upper polarizer 12 and connected to the grounding point on the TFT glass 11 to conduct away static electricity. Since the silver paste 13 will penetrate into the upper polarizer 12 and there will be corrosion within a certain range, in order to avoid corrosion entering the AA (Active Area, operable area) area, the line silver paste 13 will be applied at the two corners B farther away from the AA area.
[0003] Therefore, the existing anti-static structure of the LCD screen has the following defects: since the upper polarizer 12 cannot completely cover the corner B part of the upper glass 14 of this structure, the overall strength will be reduced. At the same time, the silver paste is very close to the edge of the LCD screen, and static electricity can easily damage the glass through the silver paste. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an antistatic liquid crystal display screen structure, thereby ensuring the strength of the upper glass and reducing the risk of static electricity damaging the liquid crystal display screen glass.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] An antistatic liquid crystal display screen structure comprises: an upper polarizer, an upper glass and a lower glass which are stacked in sequence, and an AA area is arranged on the upper polarizer; the upper polarizer comprises an upper polarizer body layer and a conductive adhesive layer, and the conductive adhesive layer is arranged on a side surface of the upper polarizer body layer facing the upper glass; one side of the lower glass extends in a direction away from the upper glass and forms a binding protrusion, and a grounding binding point is arranged on the binding protrusion; an avoidance groove is provided on the side of the upper polarizer body layer facing the grounding binding point, and the avoidance groove is away from the AA area, and the grounding binding point is located below the avoidance groove, and the conductive adhesive layer is connected to the grounding binding point through an electrostatic conductive layer, and the electrostatic conductive layer is partially located in the avoidance groove.
[0007] In one of the embodiments, the electrostatic conductive layer includes an upper conductive portion and a lower conductive portion connected to each other, the upper conductive portion is located in the avoidance groove, and the lower conductive portion is connected to the ground binding point.
[0008] In one embodiment, the electrostatic conductive layer has a T-shaped structure.
[0009] In one embodiment, the avoidance groove is a rectangular structure.
[0010] In one embodiment, the area of the ground binding point is larger than the contact area between the lower conductive portion and the ground binding point.
[0011] In one of the embodiments, the electrostatic conductive layer is a silver paste wiring layer.
[0012] In one of the embodiments, the upper polarizer is a high impedance layer polarizer.
[0013] In one embodiment, the conductive adhesive layer is a PSA conductive adhesive layer.
[0014] In one of the embodiments, an IC binding position is provided on the binding protrusion, and an IC chip is bound to the IC binding position.
[0015] In one of the embodiments, an FPC binding position is further provided on the binding protrusion, and the FPC is bound to the FPC binding position.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The antistatic liquid crystal display screen structure of the utility model achieves an antistatic effect by providing an avoidance groove in the area of the upper polarizer away from the AA area, and making the avoidance groove face the ground binding point, and then connecting and binding the conductive adhesive layer in the polarizer on the side of the avoidance groove and the ground binding point through the electrostatic conductive layer; in addition, by providing the avoidance groove, compared with the existing structure, the upper polarizer can still cover the edge area of the upper glass to ensure the overall structural strength, and the electrostatic conductive layer can be kept away from the outer edge of the liquid crystal display screen to reduce the risk of static electricity damaging the glass through the electrostatic conductive layer; finally, compared with the existing structure, the length of the electrostatic conductive layer can be appropriately shortened, thereby ensuring product performance while also reducing the amount of electrostatic conductive layer material and saving material costs. 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 It is a structural schematic diagram of a conventional liquid crystal display structure;
[0020] Figure 2 It is a structural schematic diagram of an antistatic liquid crystal display screen structure in one embodiment of the utility model;
[0021] Figure 3 for Figure 2 Schematic diagram of the structure of the antistatic liquid crystal display screen to remove the static conductive layer. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 2 and Figure 3 As shown, an antistatic liquid crystal display structure 20 includes: an upper polarizer 100, an upper glass 200 and a lower glass 300 which are stacked in sequence, and an AA area is arranged on the upper polarizer 100; the upper polarizer 100 includes an upper polarizer body layer and a conductive adhesive layer, and the conductive adhesive layer is arranged on a side surface of the upper polarizer body layer facing the upper glass 100; one side of the lower glass 300 extends in a direction away from the upper glass 100 and forms a binding protrusion 310, and a grounding binding point 311 is arranged on the binding protrusion 310; an avoidance groove 110 is opened on one side of the upper polarizer body layer facing the grounding binding point 311, and the avoidance groove 110 is away from the AA area, and the grounding binding point 311 is located below the avoidance groove 110, and the conductive adhesive layer is connected to the grounding binding point 311 through the electrostatic conductive layer 400, and the electrostatic conductive layer 400 is partially located in the avoidance groove 110.
[0024] It should be noted that the upper glass 200 is CF (color filter) glass, and the lower glass 300 is TFT glass; wherein the conductive adhesive layer is connected to the ground binding point 311 through the electrostatic conductive layer 400, and the electrostatic conductive layer 400 is partially located in the avoidance groove, which means that an avoidance groove 110 is opened in the area of the upper polarizer 100 away from the AA area, and the avoidance groove 110 is directed toward the ground binding point 311, and then the electrostatic conductive layer 400 is partially in contact with the conductive adhesive layer in the upper polarizer 100 on the side of the avoidance groove 110, thereby achieving an anti-static effect; in addition, by opening the avoidance groove 110, relative to the existing structure, the upper polarizer 100 can still cover the corner area of the upper glass (that is, cover the corner area of the upper polarizer 100). Figure 1B in the figure) to ensure the overall structural strength (the upper polarizer covers the upper glass, which can make the upper glass stronger), and can also make the electrostatic conductive layer 400 relatively farther away from the outer edge of the liquid crystal display screen to reduce the risk of static electricity passing through the electrostatic conductive layer 400 to damage the glass; finally, relative to the existing structure, the length of the electrostatic conductive layer 400 can be appropriately shortened, thereby ensuring product performance while also reducing the amount of material used in the electrostatic conductive layer 400, saving material costs. In addition, the electrostatic conductive layer of the utility model is also far away from the AA area, so it can prevent the electrostatic conductive layer 400 from corroding and entering the AA area. In addition, the anti-static liquid crystal display structure 20 also includes a lower polarizer, and the upper polarizer 100, the upper glass 200, the lower glass 300 and the lower polarizer are stacked in sequence.
[0025] Furthermore, the electrostatic conductive layer 400 includes an upper conductive part and a lower conductive part connected to each other, the upper conductive part is located in the avoidance groove 110, and the lower conductive part is connected to the ground binding point 311. That is, after the electrostatic conductive layer 400 is set, the upper conductive part is in contact with the conductive adhesive layer in the upper polarizer 100 on the side of the avoidance groove 110; the lower conductive part extends to the ground binding point 311 below the avoidance groove 110 and is connected to the ground binding point 311. In this way, compared with the existing structure, the length of the electrostatic conductive part 400 can be appropriately reduced, ensuring product performance while also reducing the amount of the electrostatic conductive part, saving material costs. For example, preferably, the electrostatic conductive layer 400 is in a T-shaped structure.
[0026] See also Figure 2 As shown, preferably, the avoidance groove 110 is a rectangular structure. That is, the outer shape structure of the avoidance groove matches the structure of the upper conductive part. Preferably, the center of the avoidance groove corresponds to the grounding binding point 311, that is, the grounding binding point 311 is located directly below the avoidance groove 110.
[0027] See also Figure 2 As shown, preferably, the area of the ground binding point 311 is larger than the contact area between the lower conductive part and the ground binding point 311. In this way, it can be ensured that the lower conductive part is located inside the ground binding point 311.
[0028] Preferably, the electrostatic conductive layer is a silver paste wiring layer.
[0029] Preferably, the upper polarizer 100 is a high impedance layer polarizer. The high impedance layer polarizer refers to an AS polarizer, AS (anti-static), and conductive particles are added to the adhesive layer of the upper polarizer to make the adhesive layer of the upper polarizer have a static conductive function. Preferably, the conductive adhesive layer is a PSA (pressure sensitive adhesive) conductive adhesive layer, that is, conductive particles are arranged on the PSA adhesive layer.
[0030] Furthermore, the binding protrusion 310 is provided with an IC binding position, to which an IC chip (integrated circuit) 500 is bound. Furthermore, the binding protrusion 310 is also provided with an FPC (flexible circuit board) binding position, to which an FPC 600 is bound.
[0031] 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 liquid crystal display screen structure, characterized in that: include: An upper polarizer, an upper glass, and a lower glass are stacked in sequence, and an AA area is arranged on the upper polarizer; The upper polarizer includes an upper polarizer body layer and a conductive adhesive layer, wherein the conductive adhesive layer is arranged on a side surface of the upper polarizer body layer facing the upper glass; One side of the lower glass extends in a direction away from the upper glass and forms a binding protrusion, and a grounding binding point is provided on the binding protrusion; An avoidance groove is provided on the side of the upper polarizer body layer facing the ground binding point, and the avoidance groove is away from the AA area. The ground binding point is located below the avoidance groove. The conductive adhesive layer is connected to the ground binding point through an electrostatic conductive layer, and the electrostatic conductive layer is partially located in the avoidance groove.
2. The antistatic liquid crystal display structure according to claim 1, characterized in that: The electrostatic conductive layer includes an upper conductive part and a lower conductive part which are connected to each other. The upper conductive part is located in the avoidance groove, and the lower conductive part is connected to the ground binding point.
3. The antistatic liquid crystal display structure according to claim 2, characterized in that: The electrostatic conductive layer is in a T-shaped structure.
4. The antistatic liquid crystal display screen structure according to claim 3, characterized in that: The avoidance groove is in a rectangular structure.
5. The antistatic liquid crystal display structure according to claim 2, characterized in that: The area of the ground binding point is larger than the contact area between the lower conductive portion and the ground binding point.
6. The antistatic liquid crystal display structure according to any one of claims 1 to 5, characterized in that: The electrostatic conductive layer is a silver paste wiring layer.
7. The antistatic liquid crystal display structure according to any one of claims 1 to 5, characterized in that: The upper polarizer is a high impedance layer polarizer.
8. The antistatic liquid crystal display screen structure according to claim 7, characterized in that: The conductive adhesive layer is a PSA conductive adhesive layer.
9. The antistatic liquid crystal display structure according to any one of claims 1 to 5, characterized in that: The binding protrusion is provided with an IC binding position, and an IC chip is bound to the IC binding position.
10. The antistatic liquid crystal display screen structure according to claim 9, characterized in that: The binding protrusion is also provided with an FPC binding position, and the FPC is bound to the FPC binding position.