Liquid crystal display screen capable of quickly checking whether silicone adhesive overflows or not

Abstract

The utility model discloses a liquid crystal display screen capable of quickly checking whether silicone adhesive overflows, which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid and a cover plate which are sequentially overlapped from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, the silicone adhesive is arranged on the upper surface of the lower substrate positioned at the step, and the silicone adhesive is arranged on the lower surface of the upper polaroid. The silicone adhesive abuts against the cover plate, and a white ink layer is arranged on the lower surface of the cover plate and located on the outer side of the silicone adhesive. Whether the silicone adhesive exceeds the standard requirement or not can be identified through the white ink layer, if the silicone adhesive exists on the white ink layer, the excessive adhesive amount exceeds the standard and exceeds the appearance of the display glass, and the appearance can be easily identified; if no silicone adhesive exists on the white ink layer, no excessive adhesive exists, and the product is a qualified product. According to the structure, whether the silicone adhesive exceeds the appearance of the display glass or not can be quickly checked, so that the silicone adhesive is prevented from overflowing, and silicone oil released by the silicone adhesive is prevented from reaching the assembly surface of the cover plate.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a liquid crystal display screen for quickly checking whether silicone sealant has overflowed. Background Technology

[0002] To prevent the display glass in the single-layer area from cracking during reliability tests such as drop tests, silicone sealant is used to fill the gap between the single-layer area of ​​the display glass and the cover plate in mobile phone integrated touch display modules. Before full lamination, silicone sealant is applied to the single-layer area of ​​the display glass and then bonded to the cover plate. After full lamination, the silicone sealant must not exceed the outline of the display glass. However, in the existing structure, if the silicone sealant overflows beyond the outline of the display glass, it is not easily identifiable visually. As a result, products with silicone sealant exceeding the outline of the display glass are still mixed in with qualified products. Since the silicone sealant is in direct contact with the cover plate, after the product is left for a period of time, the silicone sealant will release silicone oil onto the surrounding cover plate assembly surface, causing the dyne value of the cover plate surface around the silicone sealant to decrease. During terminal assembly, this area is prone to poor adhesion and delamination problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to quickly check whether the silicone sealant exceeds the outline of the display glass, thereby preventing the silicone sealant from overflowing and preventing the silicone oil released from the silicone sealant from reaching the assembly surface of the cover plate, ensuring a reliable installation and avoiding the problem of delamination.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] To solve the above-mentioned technical problems, this utility model provides a liquid crystal display screen for quickly checking whether silicone sealant has overflowed. It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, and a cover plate stacked sequentially from bottom to top. The lower substrate is longer than the upper substrate and extends outward to form a step. Silicone sealant is disposed on the upper surface of the lower substrate located at the step. The silicone sealant abuts against the cover plate. A white ink layer is disposed on the lower surface of the cover plate, and the white ink layer is located outside the silicone sealant.

[0006] In a preferred embodiment of the liquid crystal display screen for quickly checking whether silicone sealant has overflowed, provided by this utility model, the width of the white ink layer is 0.4mm-0.6mm.

[0007] In a preferred embodiment of the liquid crystal display screen for quickly checking whether silicone sealant has overflowed, provided by this utility model, the upper polarizer is fully bonded to the cover plate by optical adhesive.

[0008] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, a driving IC is provided on the upper surface of the lower substrate located at the step, and the silicone glue is located on both sides of the driving IC.

[0009] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, an overflow glue groove is provided on the lower surface of the cover plate, and the overflow glue groove is located at the white ink layer or between the white ink layer and the silicone glue.

[0010] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, an anti-fingerprint film is provided on the upper surface of the cover plate.

[0011] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, the thickness of the anti-fingerprint film is 1 μm to 10 μm.

[0012] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, a surface treatment layer for improving surface roughness is provided on the upper surface of the cover plate located in the non-visible area.

[0013] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, the surface treatment layer is a matte treatment layer or an etching treatment layer.

[0014] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for quickly checking whether silicone glue overflows, an adhesive layer is provided on the lower surface of the anti-fingerprint film located in the non-visible area.

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

[0016] The white ink layer can be provided on the lower surface of the cover plate by screen printing. Since the white ink layer is provided on the lower surface of the cover plate and the white ink layer is located outside the silicone glue, it is possible to identify whether the silicone glue exceeds the standard requirements through this white ink layer. If there is silicone glue on the white ink layer, it means that the glue amount is excessive and exceeds the standard and the outer shape of the display glass, and it is also easily recognizable in terms of appearance; if there is no silicone glue on the white ink layer, it means that there is no overflow glue and it is a qualified product. Moreover, the white ink layer can also effectively inhibit the precipitation of silicone oil and reduce the diffusion of silicone oil. This structure can quickly check whether the silicone glue exceeds the outer shape of the display glass, thereby avoiding the overflow of silicone glue, and further avoiding the silicone oil released by the silicone glue from reaching the assembly surface of the cover plate, ensuring reliable installation and avoiding the problem of glue detachment. Description of the Drawings

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model provides a schematic diagram of the structure of a liquid crystal display screen for quickly checking whether silicone sealant has overflowed.

[0019] Figure 2 for Figure 1 Top view of the upper and lower substrates.

[0020] Figure 3 This is a bottom view of the cover plate.

[0021] Figure 4 for Figure 1 A schematic diagram of the improved structure.

[0022] Description of Figure Numbers:

[0023] 1. Lower polarizer; 2. Lower substrate; 3. Upper substrate; 4. Upper polarizer; 5. Cover plate; 6. Silicone sealant; 7. White ink layer; 8. Optical adhesive; 9. Driver IC; 10. Glue overflow groove; 11. Anti-fingerprint film. Detailed Implementation

[0024] 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.

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

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

[0027] The present utility model provides a liquid crystal display screen for quickly checking whether silicone glue overflows, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, and a cover plate sequentially stacked from bottom to top. The lower substrate is longer than the upper substrate and extends outwards to form a step. A silicone glue is provided on the upper surface of the lower substrate at the step. The silicone glue abuts against the cover plate. A white ink layer is provided on the lower surface of the cover plate, and the white ink layer is located outside the silicone glue.

[0028] The white ink layer can be provided on the lower surface of the cover plate by screen printing. Since the white ink layer is provided on the lower surface of the cover plate and the white ink layer is located outside the silicone glue, it is possible to identify whether the silicone glue exceeds the standard requirements through this white ink layer. If there is silicone glue on the white ink layer, it means that the amount of glue is excessive and exceeds the display glass shape, and it is also easily recognizable in appearance; if there is no silicone glue on the white ink layer, it means that there is no glue overflow and it is a qualified product. Moreover, the white ink layer can also effectively inhibit the precipitation of silicone oil and reduce the diffusion of silicone oil. This structure can quickly check whether the silicone glue exceeds the display glass shape, thereby avoiding the overflow of silicone glue, and further avoiding the silicone oil released by the silicone glue onto the assembly surface of the cover plate, ensuring reliable installation and avoiding the problem of glue detachment.

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

[0030] Example 1, please refer to Figures 1 to 3This invention provides a liquid crystal display screen for quickly checking whether silicone sealant 6 has overflowed. It includes a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4, and a cover plate 5, stacked sequentially from bottom to top. The lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step. Silicone sealant 6 is disposed on the upper surface of the lower substrate 2 at the step, and the silicone sealant 6 abuts against the cover plate 5. A white ink layer 7 is disposed on the lower surface of the cover plate 5, located outside the silicone sealant 6. The white ink layer 7 can be applied to the lower surface of the cover plate 5 by screen printing. Because the white ink layer 7 is located outside the silicone sealant 6, it can be used to identify whether the silicone sealant 6 exceeds the standard requirements. If there is silicone sealant 6 on the white ink layer 7, it indicates that the amount of sealant is excessive, exceeding the standard and exceeding the shape of the display glass, and is easily identifiable visually. If there is no silicone sealant 6 on the white ink layer 7, it indicates no overflow and is a qualified product. Furthermore, the white ink layer 7 can effectively inhibit the precipitation of silicone oil and reduce its diffusion. This structure allows for quick inspection to ensure that the silicone sealant 6 does not exceed the outline of the display glass, thereby preventing the silicone sealant 6 from overflowing and thus preventing the silicone oil released from the silicone sealant 6 from reaching the assembly surface of the cover plate 5, ensuring a secure installation and preventing delamination problems.

[0031] Furthermore, the width of the white ink layer 7 is 0.4mm-0.6mm to ensure sufficient width.

[0032] Furthermore, the upper polarizer 4 is fully bonded to the cover plate 5 using optical adhesive 8.

[0033] Furthermore, a driver IC9 is disposed on the upper surface of the lower substrate 2 located at the step, and silicone sealant 6 is located on both sides of the driver IC9 to avoid affecting the use of the driver IC9.

[0034] Example 2, please refer to Figure 4 As a further optimization of Embodiment 1, in this embodiment, an overflow groove 10 is provided on the lower surface of the cover plate 5. The overflow groove 10 is located at the white ink layer 7 or between the white ink layer 7 and the silicone sealant 6. Part of the white ink layer 7 can be placed in the overflow groove 10. The overflow groove 10 can accommodate and store the overflowed silicone oil, preventing the silicone oil from flowing to the assembly point of the cover plate 5, thereby ensuring a secure installation.

[0035] Furthermore, an anti-fingerprint film 11 is provided on the upper surface of the cover plate 5, so that users can avoid fingerprints remaining on the surface of the cover plate 5 during use, thereby enhancing the aesthetics of the LCD screen and improving the competitiveness of the product.

[0036] Furthermore, the thickness of the anti-fingerprint film 11 is 1 μm to 10 μm.

[0037] Furthermore, a surface treatment layer for improving surface roughness is provided on the upper surface of the cover plate 5 located in the non-visible area. The surface treatment layer is either a frosted layer or an etched layer. An adhesive layer is provided on the lower surface of the anti-fingerprint film 11 located in the non-visible area, so that the anti-fingerprint film 11 can be more firmly adhered to the upper surface of the cover plate 5. More preferably, the thickness of the adhesive layer is 0.5 μm.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application 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 application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen for quickly checking whether silicone sealant has overflowed, characterized in that, It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, and a cover plate stacked sequentially from bottom to top. The lower substrate is longer than the upper substrate and extends outward to form a step. A silicone sealant is disposed on the upper surface of the lower substrate located at the step. The silicone sealant abuts against the cover plate. A white ink layer is disposed on the lower surface of the cover plate, and the white ink layer is located outside the silicone sealant.

2. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 1, characterized in that, The width of the white ink layer is 0.4mm-0.6mm.

3. The liquid crystal display screen for quickly checking whether silicone sealant has overflowed, as described in claim 1, is characterized in that... The upper polarizer is fully bonded to the cover plate using optical adhesive.

4. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 1, characterized in that, A driver IC is disposed on the upper surface of the lower substrate located at the step, and the silicone sealant is located on both sides of the driver IC.

5. The liquid crystal display screen for quickly checking whether silicone sealant has overflowed according to claim 1, characterized in that, An overflow groove is provided on the lower surface of the cover plate, and the overflow groove is located at the white ink layer or between the white ink layer and the silicone sealant.

6. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 1, characterized in that, The upper surface of the cover plate is provided with an anti-fingerprint film.

7. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 6, characterized in that, The thickness of the anti-fingerprint film is 1 μm to 10 μm.

8. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 6, characterized in that, The upper surface of the cover plate located in the non-visible area is provided with a surface treatment layer to improve surface roughness.

9. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 8, characterized in that, The surface treatment layer is a frosted layer or an etched layer.

10. The liquid crystal display screen for quickly checking whether silicone adhesive has overflowed according to claim 6, characterized in that, An adhesive layer is provided on the lower surface of the anti-fingerprint film located in the non-visible area.

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