Liquid crystal display screen capable of preventing liquid glue from overflowing

Abstract

The utility model discloses a liquid crystal display screen capable of preventing liquid glue from overflowing, which comprises a cover plate and a component arranged below the cover plate, the lower surface of the cover plate is etched to form a frame-shaped groove, and the boundary dimension of the frame-shaped groove is larger than that of the component. The distance between each side edge of the frame-shaped groove and each side edge of the component is at least 0.2 mm, liquid optical cement is arranged between the cover plate and the component, and the space defined by the frame-shaped groove is coated with the liquid optical cement. When the cover plate and the component are assembled, the lower surface of the cover plate is coated with the liquid optical cement, then the cover plate is attached to the component, the distance between the component and the single edge of the frame-shaped groove is at least 0.2 mm, redundant liquid optical cement can flow into the interval of 0.2 mm, if the liquid optical cement is left, the liquid optical cement can flow into the frame-shaped groove, and therefore the component can be assembled. The liquid optical cement is prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen which can prevent liquid glue from overflowing. Background Art

[0002] When bonding liquid optical adhesive, a lot of glue will always overflow. In order to avoid interference between the liquid optical adhesive and other components, it is necessary to wipe it clean before the liquid optical adhesive solidifies. This invisibly increases the wiping process and reduces the assembly efficiency of the LCD screen, thereby increasing the manufacturing cost of the LCD screen and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to avoid the overflow of liquid optical glue, thereby eliminating the wiping process and improving the assembly efficiency of the liquid crystal display screen.

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

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen that prevents liquid glue from overflowing, comprising a cover plate and components arranged under the cover plate, wherein a frame-shaped groove is etched on the lower surface of the cover plate, the outer dimensions of the frame-shaped groove are larger than the outer dimensions of the components, and the distance between each side of the frame-shaped groove and each side of the component is at least 0.2 mm, and liquid optical glue is arranged between the cover plate and the components, and the liquid optical glue is coated in the space enclosed by the frame-shaped groove.

[0006] As a preferred implementation of the liquid crystal display screen for preventing liquid glue from overflowing provided by the utility model, the components are touch glass and / or TFT module.

[0007] As a preferred implementation of the liquid crystal display screen for preventing liquid glue from overflowing provided by the utility model, the width of the frame-shaped groove is 0.4 mm to 0.8 mm, and the depth of the frame-shaped groove is 0.3 mm to 0.4 mm.

[0008] As a preferred embodiment of the liquid crystal display screen for preventing liquid glue from overflowing provided by the utility model, an anti-fall plate is arranged above the cover plate, and an ink layer is arranged on the lower surface of the anti-fall plate located in the non-visible area, and the cover plate and the anti-fall plate are fixed by an adhesive layer, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate.

[0009] As a preferred implementation of the liquid crystal display screen for preventing liquid glue from overflowing provided by the utility model, the thickness of the ink layer is 8 μm to 15 μm.

[0010] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for preventing liquid glue from overflowing, the thickness of the bonding layer is 50 μm.

[0011] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for preventing liquid glue from overflowing, the upper surface of the anti-drop plate is covered with an anti-fingerprint film layer.

[0012] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for preventing liquid glue from overflowing, a color-changing layer is provided on the upper surface of the anti-fingerprint film layer located in the non-display area.

[0013] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for preventing liquid glue from overflowing, the hardness of the anti-drop plate is greater than the hardness of the cover plate.

[0014] As a preferred embodiment of the liquid crystal display screen provided by the present utility model for preventing liquid glue from overflowing, the thickness of the anti-drop plate is 5 mm to 10 mm, and the thickness of the cover plate is 3 mm to 5 mm.

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

[0016] Since the lower surface of the cover plate is etched with a frame-shaped groove, the frame-shaped groove can be etched before the large cover plate is cut. Its production efficiency is high, and the cost increase caused by the additional etching step is extremely low. Then, ink spraying is carried out instead of silk screening to avoid ink accumulation in the frame-shaped groove. Finally, the large cover plate is cut into multiple single-piece cover plates. When assembling the single-piece cover plate with the components, by applying liquid optical glue on the lower surface of the cover plate and then fitting the cover plate with the components, since the unilateral distance between the component and the frame-shaped groove is at least 0.2 mm, the excess liquid optical glue can flow into this 0.2-mm gap. If there is still remaining liquid optical glue, it can flow into the frame-shaped groove, avoiding the overflow of the liquid optical glue, thereby reducing the wiping process, improving the assembly efficiency of the liquid crystal display screen, reducing the manufacturing cost of the liquid crystal display screen, and enhancing the competitiveness of the product. Description of the Drawings

[0017] In order to more clearly illustrate the solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1Schematic structural diagram of a touch control glass type of a liquid crystal display screen that avoids liquid glue overflow provided by the present utility model.

[0019] Figure 2 Schematic structural diagram of a TFT module type of a liquid crystal display screen that avoids liquid glue overflow provided by the present utility model.

[0020] Figure 3 Top view of a single-piece cover plate.

[0021] Figure 4 Schematic structural diagram of a large-piece cover plate.

[0022] Figure 5 Schematic structural diagram of a combined type of touch control glass and TFT module of a liquid crystal display screen that avoids liquid glue overflow provided by the present utility model.

[0023] Figure 6 Schematic structural diagram of Embodiment 2.

[0024] Explanation of the reference numerals in the drawings:

[0025] Cover plate 1; Components 2; Frame-shaped groove 11; Liquid optical glue 3;

[0026] Anti-drop plate 4; Ink layer 41; Adhesive layer 42. Specific embodiments

[0027] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by 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. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] In addition, the terms "first", "second", and "third" are only used for descriptive purposes 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.

[0030] The present utility model provides a liquid crystal display screen that avoids the overflow of liquid glue, which includes a cover plate and components disposed below the cover plate. A frame-shaped groove is etched on the lower surface of the cover plate, and the outer dimension of the frame-shaped groove is larger than the outer dimension of the components. The distance between each side of the frame-shaped groove and each side of the components is at least 0.2 mm. A liquid optical glue is disposed between the cover plate and the components, and the liquid optical glue is coated in the space enclosed by the frame-shaped groove.

[0031] Since the frame-shaped groove is etched on the lower surface of the cover plate, the frame-shaped groove can be etched before the large cover plate is cut, with high production efficiency and extremely low additional cost for the added etching step. Then, ink spraying is performed instead of silk screening to avoid ink accumulation in the frame-shaped groove. Finally, the large cover plate is cut into multiple single-piece cover plates. When assembling the single-piece cover plate and the components, by coating the liquid optical glue on the lower surface of the cover plate and then fitting the cover plate and the components, since the unilateral distance between the components and the frame-shaped groove is at least 0.2 mm, the excess liquid optical glue can flow into this 0.2-mm gap. If there is still remaining liquid optical glue, it can flow into the frame-shaped groove, avoiding the overflow of the liquid optical glue, thereby reducing the wiping process, improving the assembly efficiency of the liquid crystal display screen, reducing the manufacturing cost of the liquid crystal display screen, and enhancing the competitiveness of the product.

[0032] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this 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 throughout. 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 a limitation to the present utility model.

[0033] Embodiment 1

[0034] Please refer to Figures 1 to 4, A liquid crystal display screen for preventing liquid glue from overflowing provided by the present utility model, which includes a cover plate 1 and components 2. The components 2 are arranged below the cover plate 1. A frame-shaped groove 11 is etched on the lower surface of the cover plate 1. The outer dimension of the frame-shaped groove 11 is larger than the outer dimension of the components 2. The components 2 are arranged in the area enclosed by the frame-shaped groove 11. The unilateral distance between each side of the frame-shaped groove 11 and each side of the components 2 is at least 0.2 mm. A liquid optical glue 3 is arranged between the cover plate 1 and the components 2, and the liquid optical glue 3 is coated in the space enclosed by the frame-shaped groove 11. Since the frame-shaped groove 11 is etched on the lower surface of the cover plate 1, the frame-shaped groove 11 can be etched before the large cover plate 1 is cut, with high production efficiency and extremely low additional cost for the increased etching step. Then, ink spraying is carried out instead of screen printing to avoid ink accumulation in the frame-shaped groove 11. Finally, the large cover plate 1 is cut into multiple single-piece cover plates 1. When assembling the single-piece cover plate 1 and the components 2, by coating the liquid optical glue 3 on the lower surface of the cover plate 1 and then fitting the cover plate 1 and the components 2, since the unilateral distance between the components 2 and the frame-shaped groove 11 is at least 0.2 mm, the excess liquid optical glue 3 can flow into this 0.2-mm gap. If there is still remaining liquid optical glue 3, it can flow into the frame-shaped groove 11, avoiding the overflow of the liquid optical glue 3, thus reducing the wiping process, improving the assembly efficiency of the liquid crystal display screen, reducing the manufacturing cost of the liquid crystal display screen, and enhancing the competitiveness of the product.

[0035] Please refer to Figure 5 , Further, the components 2 are a touch glass and / or a TFT module. When the components 2 are a touch glass and a TFT module, the liquid optical glue 3 during the fitting of the touch glass and the TFT module can flow into the frame-shaped groove 11.

[0036] Further, the width of the frame-shaped groove 11 is 0.4 mm to 0.8 mm, and the depth of the frame-shaped groove 11 is 0.3 mm to 0.4 mm.

[0037] Embodiment 2

[0038] Please refer to Figure 6, as a further optimized solution of Embodiment 1, a shockproof plate 4 is provided above the cover plate 1. An ink layer 41 is provided on the lower surface of the shockproof plate 4 located in the non-visible area. The cover plate 1 and the shockproof plate 4 are fixed through an adhesive layer 42, and the adhesive layer 42 completely covers the ink layer 41 and the lower surface of the shockproof plate 4. Since there is another shockproof plate 4 above the cover plate 1, and the adhesive layer 42 is printed on the entire back surface of the shockproof plate 4, which covers the ink layer 41 in the non-visible area and the lower surface of the shockproof plate 4 in the visible area, filling the ink level difference and preventing the generation of fitting bubbles and edge yellow spots. The cover plate 1 can be fully adhered to the upper polarizer through the liquid optical glue 3. Since the cover plate 1 does not have the ink layer 41, it will not cause the generation of fitting bubbles and edge yellow spots either, thus avoiding abnormal display of the liquid crystal display module, reducing the probability of defective products in the liquid crystal display module, and greatly reducing the production and manufacturing costs of the liquid crystal display module.

[0039] Moreover, when the shockproof plate 4 is subjected to external force impact, the shockproof plate 4 will break first. Due to the buffering effect of the adhesive layer 42, the cover plate 1 is not easily broken. Therefore, it can well protect the cover plate 1 and the main screen. When the shockproof plate 4 breaks, the shockproof plate 4 can be easily peeled off, and only a new shockproof plate 4 needs to be replaced, without replacing the entire liquid crystal display module, thus greatly reducing the maintenance cost of the liquid crystal display module, and further improving the product competitiveness of the liquid crystal display module to meet the increasing quality requirements of enterprises.

[0040] Furthermore, the thickness of the ink layer 41 is 8μm to 15μm.

[0041] Furthermore, the thickness of the adhesive layer 42 is 50μm.

[0042] Furthermore, the upper surface of the shockproof plate 4 is covered with an anti-fingerprint film layer to prevent user fingerprints from remaining on the shockproof plate 4 and enhance the aesthetic feeling.

[0043] Furthermore, a color-changing layer is provided on the upper surface of the anti-fingerprint film layer located in the non-display area to further enhance the product aesthetic feeling.

[0044] Furthermore, the hardness of the shockproof plate 4 is greater than that of the cover plate 1 to enhance the protection effect.

[0045] Furthermore, the thickness of the shockproof plate 4 is 5mm to 10mm, and the thickness of the cover plate 1 is 3mm to 5mm.

[0046] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation" and the like shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of the embodiments. The accompanying drawings show preferred embodiments of the present application, but do not limit the scope of the patent 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 disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the specification and drawings of the present application, directly or indirectly applied in other related technical fields, is equally within the scope of the patent protection of the present application.

Claims

1. A liquid crystal display screen for preventing liquid glue from overflowing, characterized in that: It includes a cover plate and components arranged under the cover plate, a frame-shaped groove is etched on the lower surface of the cover plate, the outer dimensions of the frame-shaped groove are larger than the outer dimensions of the component, and the distance between each side of the frame-shaped groove and each side of the component is at least 0.2 mm. Liquid optical glue is arranged between the cover plate and the component, and the liquid optical glue is coated in the space enclosed by the frame-shaped groove.

2. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 1, characterized in that: The components are touch glass and / or TFT modules.

3. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 1, characterized in that: The width of the frame-shaped groove is 0.4 mm to 0.8 mm, and the depth of the frame-shaped groove is 0.3 mm to 0.4 mm.

4. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 1, characterized in that: An anti-fall plate is arranged above the cover plate, and an ink layer is arranged on the lower surface of the anti-fall plate located in the non-visible area. The cover plate and the anti-fall plate are fixed by an adhesive layer, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate.

5. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 4, characterized in that: The ink layer has a thickness of 8 μm to 15 μm.

6. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 4, characterized in that: The thickness of the adhesive layer is 50 μm.

7. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 4, characterized in that: The upper surface of the anti-fall plate is covered with an anti-fingerprint film layer.

8. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 7, characterized in that: A color conversion layer is arranged on the upper surface of the anti-fingerprint film layer located in the non-display area.

9. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 4, characterized in that: The hardness of the anti-fall plate is greater than the hardness of the cover plate.

10. The liquid crystal display screen for preventing liquid glue from overflowing according to claim 4, characterized in that: The thickness of the anti-fall plate is 5mm to 10mm, and the thickness of the cover plate is 3mm to 5mm.

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