Silver paste dispensing structure for preventing OCA (Optical Clear Adhesive) bubbles and LCD (Liquid Crystal Display) module

Abstract

According to the silver paste dispensing structure capable of preventing OCA bubbles and the LCD module, a first protruding area and a second protruding area are arranged at the bottom of LCD upper glass and the bottom of an upper polaroid respectively, the distance between the LCD upper glass and a GND block is well controlled, the LCD upper glass and the upper polaroid make full contact with the GND block, meanwhile, after silver paste dispensing, the silver paste overflows from the upper portion of the LCD upper glass and the upper polaroid, and therefore the OCA bubbles can be prevented. Meanwhile, the distance between the OCA optical cement and the silver paste is controlled, structural interference is prevented, the upper polaroid, the upper piece of glass, the lower piece of glass and the GND block can be connected together after the dotted silver paste is prepared, meanwhile, the enough contact area is guaranteed, the ESD anti-static capacity is improved, the stability of the touch display performance is guaranteed, and meanwhile, OCA bubbles are greatly reduced at the position where the silver paste is dotted.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a dotted silver paste structure and an LCD liquid crystal display module for preventing the formation of OCA bubbles. Background Technology

[0002] Liquid crystal display (LCD) technology has been widely used in various electronic devices since its invention. From early desktop computer monitors to modern smartphones, tablets, televisions, and car dashboards, LCDs are ubiquitous. With technological advancements, LCDs also play a vital role in industrial control, medical devices, aerospace, and other fields. Despite the maturity of LCD technology, some technical challenges remain in the manufacturing process. One such challenge is the formation of OCA (Optically Clear Adhesive) bubbles at the silver paste application points after full lamination. This is especially problematic for LCDs with narrow bottom bezels, where conventional designs cannot prevent or mitigate these defects. These bubbles not only affect display quality but can also reduce the overall quality and reliability of the product.

[0003] Currently, in-cell LCDs, which are liquid crystal displays with integrated touch functions, all have a silver paste application process. This process requires that after the silver paste is applied, it must contact the edge of the upper polarizer but not be higher than the surface of the upper polarizer (i.e., it cannot be applied to the surface of the upper polarizer), and at the same time contact the upper glass of the LCD (i.e., the color filter substrate CF). Furthermore, the silver paste must have a certain length and width.

[0004] For example, Chinese utility model patent (CN220012511U) discloses an OCA anti-bubble structure for display screen bonding, which includes a carrier film, an OCA adhesive layer, and a release film. The carrier film has smooth surfaces on both sides, the OCA adhesive layer is disposed on one side of the carrier film, and the outer circle of the OCA adhesive layer is 0.2-0.5mm smaller than the outer circle of the carrier film. The OCA adhesive layer has convex edge ear adhesives on both sides near the display screen FPC. The release film is located on the side of the OCA adhesive layer away from the carrier film, and the OCA adhesive layer and the release film are the same size. The release film has edge ear films disposed at the positions corresponding to the edge ear adhesives. This invention provides edge ear adhesive with two protruding OCA adhesive layers near the display screen FPC for full bonding between the LCD and LENS. The OCA adhesive with two outwardly extended edge ear adhesives increases the OCA adhesive area, making the adhesion between the LCD corners and LENS stronger. This avoids the traditional method of filling the corners with the outwardly extended part of OCA that is not subjected to bonding and compression. The traditional adhesion is prone to deformation and air bubbles after being stretched by external force.

[0005] However, when the inventors implemented this device, they discovered the following defects: for LCD screens with narrow bottom bezels, conventional designs cannot avoid or improve such defects. These bubbles not only affect the display effect but may also reduce the overall quality and reliability of the product. Utility Model Content

[0006] Based on this, it is necessary to address the aforementioned technical problems by providing a silver paste structure and LCD liquid crystal display module that prevents the formation of OCA bubbles. By setting a first protruding area and a second protruding area at the bottom of the upper glass and upper polarizer of the LCD respectively, the distance from the GND block is controlled to ensure sufficient contact. This also facilitates the overflow of silver paste from the upper glass and upper polarizer after application, while controlling the distance between the OCA optical adhesive and the silver paste to prevent structural interference. After the silver paste is applied, the upper polarizer, upper glass, lower glass and GND block can be connected together, ensuring sufficient contact area, improving ESD antistatic capability and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the silver paste application location.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A dotted silver paste structure to prevent the formation of OCA bubbles.

[0009] The silver paste structure that prevents the formation of OCA bubbles specifically includes:

[0010] The lower glass of the LCD is provided with GND blocks and crosshair alignment marks on both the left and right sides, and the GND blocks are located outside the crosshair alignment marks.

[0011] The upper LCD glass is disposed on top of the lower LCD glass, and a first protruding area is provided at the bottom of the upper LCD glass. The shortest gap distance between the first protruding area and the GND block is 0.2~0.4mm.

[0012] An upper polarizer is disposed on the top of the upper glass of the LCD, and a second protruding area is provided at the bottom of the upper polarizer. The shortest gap distance between the second protruding area and the GND block is 0.2~0.4mm.

[0013] Silver paste, which is disposed on the GND block and abuts against the sidewalls of the first protruding area and the second protruding area;

[0014] The OCA optical adhesive is disposed on the top of the upper polarizer, and a groove is provided at the bottom of the OCA optical adhesive. The shortest gap between the groove wall and the silver paste is 0.2~0.3mm.

[0015] As a preferred embodiment of the dotted silver paste structure for preventing OCA bubbles provided by this utility model, in a frontal view, the first protruding area includes a first Y-axis sidewall and a first X-axis sidewall, and the distances of the first Y-axis sidewall and the first X-axis sidewall are equal to the distances of the Y-axis sidewall and the X-axis sidewall of the GND block, respectively.

[0016] In a preferred embodiment of the dotted silver paste structure for preventing OCA bubbles provided by this utility model, the first protruding areas are respectively located at the lower left and lower right corners of the upper glass of the LCD.

[0017] As a preferred embodiment of the dotted silver paste structure for preventing OCA bubbles provided by this utility model, in a frontal view, the second protruding area includes a second Y-axis sidewall and a second X-axis sidewall, and the second Y-axis sidewall and the second X-axis sidewall are respectively equidistant from the Y-axis sidewall and the X-axis sidewall of the GND block.

[0018] In a preferred embodiment of the dotted silver paste structure for preventing OCA bubbles provided by this utility model, the second protruding areas are respectively disposed at the lower left and lower right corners of the upper polarizer.

[0019] As a preferred embodiment of the dotted silver paste structure for preventing OCA bubbles provided by this utility model, in a frontal view, the groove includes a third Y-axis sidewall and a third X-axis sidewall, and the distances of the third Y-axis sidewall and the third X-axis sidewall to the Y-axis sidewall and X-axis sidewall of the silver paste are respectively equal.

[0020] In a preferred embodiment of the silver paste structure for preventing OCA bubbles provided by this utility model, the grooves are respectively disposed at the lower left and lower right corners of the OCA optical adhesive.

[0021] This utility model embodiment also provides an LCD liquid crystal display module, which includes a protective cover plate, a lower polarizer, a backlight, a driver IC, an FPC flexible circuit board, and a display structure with OCA bubbles as described above.

[0022] In a preferred embodiment of the LCD liquid crystal display module provided by this utility model, the protective cover is disposed on top of the OCA optical adhesive.

[0023] In a preferred embodiment of the LCD liquid crystal display module provided by this utility model, the backlight is disposed at the bottom of the OCA bubble display structure, and the IC and FPC flexible circuit board are both disposed on the lower glass.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention provides a silver paste application structure and LCD display module that prevents OCA bubbles. By setting a first protruding area and a second protruding area at the bottom of the upper LCD glass and the upper polarizer respectively, the distance from the GND block is controlled to ensure full contact. This also facilitates the overflow of silver paste from the upper LCD glass and the upper polarizer after application. Simultaneously, the distance between the OCA optical adhesive and the silver paste is controlled to prevent structural interference. After the silver paste application is completed, the upper polarizer, the upper LCD glass, the lower LCD glass, and the GND block can be connected together, ensuring sufficient contact area, improving ESD antistatic capability, and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the silver paste application location. Attached Figure Description

[0026] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the silver paste structure for preventing OCA bubbles provided by this utility model;

[0028] Figure 2 for Figure 1 A magnified view of a portion at point A;

[0029] Figure 3 A three-dimensional schematic diagram (without silver paste) of the silver paste structure for preventing OCA bubbles provided by this utility model.

[0030] Figure 4 A three-dimensional schematic diagram (with silver paste) of the silver paste structure for preventing OCA bubbles provided by this utility model.

[0031] Figure 5 A schematic diagram of the structure of the protective cover provided by this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the OCA optical adhesive provided by this utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the upper polarizer provided by this utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the LCD upper glass provided by this utility model;

[0035] Figure 9This is a schematic diagram of the structure of the lower LCD glass provided by this utility model;

[0036] Figure 10 This is a schematic diagram of the structure of the lower polarizer provided by this utility model.

[0037] The markings in the diagram are explained as follows:

[0038] LCD lower glass 100, GND block 110, cross alignment mark 120; LCD upper glass 200, first protruding area 210, first Y-axis sidewall 211, first X-axis sidewall 212; upper polarizer 300, second protruding area 310, second Y-axis sidewall 311, second X-axis sidewall 312; silver paste 400; OCA optical adhesive 500, groove 510, third Y-axis sidewall 511, third X-axis sidewall 512; driver IC 600; FPC flexible circuit board 700; lower polarizer 800; protective cover plate 900. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0040] As in the background art, for LCD displays with narrow bottom bezels, conventional designs cannot avoid or improve such defects. These bubbles not only affect the display effect but may also reduce the overall quality and reliability of the product.

[0041] To solve this technical problem, this invention provides a dotted silver paste structure to prevent the formation of OCA bubbles.

[0042] For details, please refer to Figure 1-4 The specific structure of the spot silver paste to prevent OCA bubbles includes:

[0043] LCD lower glass 100, with GND blocks 110 and cross alignment marks 120 provided on both the left and right sides of LCD lower glass 100, and the GND blocks 110 being located outside the cross alignment marks 120.

[0044] LCD upper glass 200 is disposed on top of LCD lower glass 100. A first protruding area 210 is provided at the bottom of LCD upper glass 200. The shortest gap distance between the first protruding area 210 and GND block 110 is 0.2~0.4mm.

[0045] The upper polarizer 300 is disposed on the top of the upper glass of the LCD 200. The bottom of the upper polarizer 300 is provided with a second protruding area 310. The shortest gap distance between the second protruding area 310 and the GND block 110 is 0.2~0.4mm.

[0046] Silver paste 400 is disposed on GND block 110 and abuts against the sidewalls of the first protruding area 210 and the second protruding area 310;

[0047] OCA optical adhesive 500 is placed on top of the upper polarizer 300. A groove 510 is provided at the bottom of the OCA optical adhesive 500. The shortest gap between the groove wall of the groove 510 and the silver paste 400 is 0.2~0.3mm.

[0048] The silver paste structure provided by this utility model to prevent OCA bubbles is achieved by setting a first protruding area 210 and a second protruding area 310 at the bottom of the upper LCD glass 200 and the upper polarizer 300, respectively, controlling the distance from the GND block 110 to ensure full contact. This also facilitates the overflow of the silver paste 400 from above the upper LCD glass 200 and the upper polarizer 300 after application. At the same time, the distance between the OCA optical adhesive 500 and the silver paste 400 is controlled to prevent structural interference. After the silver paste 400 is applied, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100, and the GND block 110 can be connected together, ensuring sufficient contact area, improving ESD antistatic capability and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the location of the silver paste 400.

[0049] 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 clearly and completely described below with reference to the accompanying drawings.

[0050] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] Example 1

[0053] Please refer to Figure 1-10 A dotted silver paste structure to prevent OCA bubbles, comprising an LCD lower glass 100, wherein GND blocks 110 and cross alignment marks 120 are provided on both the left and right sides of the LCD lower glass 100, and the GND blocks 110 are located outside the cross alignment marks 120.

[0054] LCD upper glass 200 is disposed on top of LCD lower glass 100. A first protruding area 210 is provided at the bottom of LCD upper glass 200. The shortest gap distance between the first protruding area 210 and GND block 110 is 0.2~0.4mm.

[0055] The upper polarizer 300 is disposed on the top of the upper glass of the LCD 200. The bottom of the upper polarizer 300 is provided with a second protruding area 310. The shortest gap distance between the second protruding area 310 and the GND block 110 is 0.2~0.4mm.

[0056] Silver paste 400 is disposed on GND block 110 and abuts against the sidewalls of the first protruding area 210 and the second protruding area 310;

[0057] OCA optical adhesive 500 is placed on top of the upper polarizer 300. A groove 510 is provided at the bottom of the OCA optical adhesive 500. The shortest gap between the groove wall of the groove 510 and the silver paste 400 is 0.2~0.3mm.

[0058] Through the above structural design, in-cellLCD employs a silver paste 400 process to achieve touch functionality, ensuring stable electrical performance and a refined touch experience for the touch display. This technology involves applying a thin layer of silver paste 400 to the LCD screen to form a touch circuit. The application of silver paste 400 requires precise control over its position and size. Specifically, the silver paste 400 must be in close contact with the edge of the upper polarizer 300, but cannot extend beyond the surface of the upper polarizer 300, ensuring that the upper polarizer 300 remains unaffected by the silver paste 400 and maintains a clear display effect. Simultaneously, the silver paste 400 must also be fully connected to the upper glass 200 of the LCD to form an effective electrical circuit. Cross-shaped alignment marks 120 on the lower glass substrate are positioned between the GND block 110 and the fast detection pilot area, one on each side, symmetrically distributed.

[0059] The GND block 110 on the lower glass substrate is located outside the cross alignment mark 120, with one on the left and one on the right, symmetrically distributed. The GND is made of ITO material and is connected to the ground line of the internal circuit of the LCD.

[0060] The upper LCD glass 200 has two protruding areas at the lower ends on both the left and right sides. There is a certain gap between the edge of the area and the GND block 110 of the lower LCD glass 100, which can be adjusted according to the actual design, generally between 0.2 and 0.4 mm.

[0061] The upper polarizer 300 has two protruding areas on the lower ends of its left and right sides. The edges of these areas are recessed by a certain distance from the edges of the upper LCD glass 200. This can be adjusted according to the actual design, and is generally between 0.2 and 0.4 mm.

[0062] After the silver paste 400 is made, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100, and the GND block 110 can be connected together while ensuring sufficient contact area.

[0063] OCA optical adhesive 500 needs to be kept at a certain distance from the silver paste 400 area to avoid unevenness and air bubbles caused by process errors due to overlap between OCA optical adhesive 500 and silver paste 400. This clearance distance is generally 0.2~0.3mm.

[0064] By setting a first protruding area 210 and a second protruding area 310 at the bottom of the upper LCD glass 200 and the upper polarizer 300 respectively, the distance from the GND block 110 is controlled to ensure full contact. This also facilitates the overflow of the silver paste 400 from above the upper LCD glass 200 and the upper polarizer 300 after application. At the same time, the distance between the OCA optical adhesive 500 and the silver paste 400 is controlled to prevent structural interference. After the silver paste 400 is applied, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100, and the GND block 110 can be connected together, ensuring sufficient contact area, improving ESD antistatic capability, and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the silver paste application location.

[0065] Please refer to Figure 1-4 and Figure 8 Specifically, in a frontal viewing angle, the first protruding area 210 includes a first Y-axis sidewall 211 and a first X-axis sidewall 212, the first Y-axis sidewall 211 and the first X-axis sidewall 212 being equidistant from the Y-axis sidewall and X-axis sidewall of the GND block 110, respectively. Specifically, the first protruding area 210 is respectively located at the lower left and lower right corners of the upper glass panel 200 of the LCD.

[0066] Through the above structural design, the upper LCD glass 200 has two protruding areas at the lower ends of the left and right sides. There is a certain gap between its edge and the GND block 110 of the lower LCD glass 100. This gap can be adjusted according to the actual design, generally between 0.2 and 0.4 mm. By controlling the distance from the GND block 110, it can be fully contacted. At the same time, it is beneficial for the silver paste 400 to overflow from the upper LCD glass 200 and the upper polarizer 300 after application.

[0067] Please refer to Figure 1-4 and Figure 7Specifically, in a frontal viewing angle, the second protruding area 310 includes a second Y-axis sidewall 311 and a second X-axis sidewall 312, the second Y-axis sidewall 311 and the second X-axis sidewall 312 being equidistant from the Y-axis sidewall and X-axis sidewall of the GND block 110, respectively. Specifically, the second protruding area 310 is respectively located at the lower left and lower right corners of the upper polarizer 300.

[0068] Through the above structural design, two protruding areas are provided at the lower ends of the left and right sides of the upper polarizer 300. The edges of these areas are recessed by a certain distance from the edges of the LCD upper glass 200. This can be adjusted according to the actual design, generally between 0.2 and 0.4 mm. The distance from the GND block 110 is controlled to ensure full contact with it. At the same time, it is beneficial for the silver paste 400 to overflow from the LCD upper glass 200 and the upper polarizer 300 after the silver paste 400 is applied.

[0069] Example 2

[0070] The silver paste structure for preventing OCA bubbles provided in Example 1 has been further optimized. For details, please refer to... Figure 1-4 and Figure 6 As shown, in a frontal view, the groove 510 includes a third Y-axis sidewall 511 and a third X-axis sidewall 512, and the third Y-axis sidewall 511 and the third X-axis sidewall 512 are equidistant from the Y-axis sidewall and X-axis sidewall of the silver paste 400, respectively.

[0071] Through the above structural design, the distance between the OCA optical adhesive 500 and the silver paste 400 is controlled to prevent structural interference. After the silver paste 400 is made, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100 and the GND block 110 can be connected together, while ensuring sufficient contact area, improving ESD antistatic capability and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the position of the silver paste 400.

[0072] Example 3

[0073] The silver paste structure for preventing OCA bubbles provided in Example 1 or 2 has been further optimized, as shown in the figure. Figure 1-4 and Figure 6 As shown, the grooves 510 are respectively located at the lower left and lower right corners of the OCA optical adhesive 500.

[0074] Through the above structural design, the distance between the OCA optical adhesive 500 and the silver paste 400 is controlled to prevent structural interference. After the silver paste 400 is made, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100 and the GND block 110 can be connected together, while ensuring sufficient contact area, improving ESD antistatic capability and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the position of the silver paste 400.

[0075] This utility model embodiment also provides an LCD liquid crystal display module, including a protective cover plate 900, a lower polarizer 800, a backlight, a driver IC 600, an FPC flexible circuit board 700, and a display structure with OCA bubbles as described above.

[0076] The main purpose of the above structural design is to integrate the protective cover plate 900, the lower polarizer 800, the backlight, the driver IC 600, the FPC flexible circuit board 700, and the OCA bubble together to form a compact, convenient, easy-to-install and easy-to-use display structure.

[0077] Specifically, the protective cover 900 is positioned on top of the OCA optical adhesive 500.

[0078] The above structural design protects OCA optical adhesive 500 from dust, moisture and other contaminants, thereby ensuring that OCA optical adhesive 500 maintains its optical performance and adhesive strength during use.

[0079] Specifically, the backlight is located at the bottom of the OCA bubble display structure, and the driver IC 600 and the FPC flexible circuit board 700 are both located on the lower glass.

[0080] The usage process of the display structure for preventing OCA bubbles and LCD liquid crystal display modules provided by this utility model is as follows:

[0081] By setting a first protruding area 210 and a second protruding area 310 at the bottom of the upper LCD glass 200 and the upper polarizer 300 respectively, the distance from the GND block 110 is controlled to ensure full contact. This also facilitates the overflow of the silver paste 400 from above the upper LCD glass 200 and the upper polarizer 300 after application. At the same time, the distance between the OCA optical adhesive 500 and the silver paste 400 is controlled to prevent structural interference. After the silver paste 400 is applied, the upper polarizer 300, the upper LCD glass 200, the lower LCD glass 100, and the GND block 110 can be connected together, ensuring sufficient contact area, improving ESD antistatic capability, and ensuring stable touch display performance. At the same time, the occurrence of OCA bubbles is greatly reduced at the silver paste application location.

[0082] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0083] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A dotted silver paste structure to prevent the formation of OCA bubbles, characterized in that, It includes: LCD lower glass (100), with GND blocks (110) and crosshair alignment marks (120) provided on both the left and right sides of the LCD lower glass (100), and the GND blocks (110) being located outside the crosshair alignment marks (120); LCD upper glass (200) is disposed on top of LCD lower glass (100), and a first protruding area (210) is provided at the bottom of the LCD upper glass (200). The shortest gap distance between the first protruding area (210) and the GND block (110) is 0.2~0.4mm. An upper polarizer (300) is disposed on the top of the upper glass of the LCD (200), and a second protruding area (310) is disposed at the bottom of the upper polarizer (300). The shortest gap distance between the second protruding area (310) and the GND block (110) is 0.2~0.4mm. Silver paste (400) is disposed on the GND block (110) and abuts against the sidewalls of the first protrusion area (210) and the second protrusion area (310); OCA optical adhesive (500) is disposed on the top of the upper polarizer (300), and a groove (510) is provided at the bottom of the OCA optical adhesive (500). The shortest gap between the groove wall of the groove (510) and the silver paste (400) is 0.2~0.3mm.

2. The silver paste structure for preventing OCA bubbles according to claim 1, characterized in that, In a frontal view, the first protruding area (210) includes a first Y-axis sidewall (211) and a first X-axis sidewall (212), and the first Y-axis sidewall (211) and the first X-axis sidewall (212) are respectively equidistant from the Y-axis sidewall and the X-axis sidewall of the GND block (110).

3. The silver paste structure for preventing OCA bubbles according to claim 2, characterized in that, The first protruding area (210) is respectively located at the lower left and lower right corners of the upper glass (200) of the LCD.

4. The silver paste structure for preventing OCA bubbles according to claim 1, characterized in that, In a frontal view, the second protruding area (310) includes a second Y-axis sidewall (311) and a second X-axis sidewall (312), and the second Y-axis sidewall (311) and the second X-axis sidewall (312) are respectively equidistant from the Y-axis sidewall and the X-axis sidewall of the GND block (110).

5. The silver paste structure for preventing OCA bubbles according to claim 3, characterized in that, The second protruding area (310) is respectively located at the lower left and lower right corners of the upper polarizer (300).

6. The silver paste structure for preventing OCA bubbles according to claim 1, characterized in that, In a frontal view, the groove (510) includes a third Y-axis sidewall (511) and a third X-axis sidewall (512), and the third Y-axis sidewall (511) and the third X-axis sidewall (512) are respectively equidistant from the Y-axis sidewall and X-axis sidewall of the silver paste (400).

7. The silver paste structure for preventing OCA bubbles according to claim 4, characterized in that, The grooves (510) are respectively located at the lower left and lower right corners of the OCA optical adhesive (500).

8. An LCD liquid crystal display module, characterized in that, It includes a protective cover plate (900), a lower polarizer (800), a backlight, a driver IC (600), an FPC flexible circuit board (700), and a display structure with OCA bubbles as described in any one of claims 1-7.

9. The LCD liquid crystal display module according to claim 8, characterized in that, The protective cover plate (900) is disposed on top of the OCA optical adhesive (500).

10. The LCD liquid crystal display module according to claim 9, characterized in that, The backlight is located at the bottom of the OCA bubble display structure, and the driver IC (600) and the FPC flexible circuit board (700) are both located on the lower glass.

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