Anti-static double-cover-plate liquid crystal display screen

Abstract

The utility model discloses an anti-static double-cover-plate liquid crystal display screen which comprises a cover plate, an anti-falling plate and a TFT module, an annular groove is formed in the lower surface of the cover plate and located in a non-visual area, conductive silver paste is arranged on the lower surface of the annular groove, and the lower surface of the cover plate located in an area defined by the annular groove is coated with OCA optical cement; the anti-falling plate is pasted above the cover plate through a bonding layer, an ink layer is arranged on the lower surface of the anti-falling plate in a non-visual area, and the bonding layer completely covers the ink layer and the lower surface of the anti-falling plate; the TFT module is pasted below the cover plate through the OCA optical cement, and the conductive silver paste is electrically connected with an FPC of the TFT module and is grounded. The static electricity at the cover plate can be transmitted to the FPC through the conductive silver paste and is led out through grounding of the FPC, so that the static electricity accumulated at the cover plate is led out, the TFT module or a user is prevented from being damaged, safety accidents are prevented from being caused, and the competitiveness of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to an anti-static double-cover plate liquid crystal display screen. Background Art

[0002] Traditional anti-static structures are usually set on the color film substrate or the array substrate. However, after long-term practice, it has been found that static electricity will also accumulate on the lower cover of some double-cover structures. If the static electricity here is not discharged, the TFT module under the cover may be damaged at the least, or the static electricity may be discharged to the user's hand through the upper cover, causing the user to be injured by static electricity, thereby causing safety accidents and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to conduct away the static electricity accumulated on the cover plate to avoid damaging the TFT module or the user, avoid causing safety accidents, and improve the competitiveness of the product.

[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 an anti-static double-cover liquid crystal display screen, which includes a cover plate, an anti-fall plate and a TFT module, the lower surface of the cover plate is provided with an annular groove, the annular groove is located in a non-visible area, the lower surface of the annular groove is provided with conductive silver paste, and the lower surface of the cover plate located in the area enclosed by the annular groove is coated with OCA optical glue; the anti-fall plate is adhered to the top of the cover plate through an adhesive layer, and the lower surface of the anti-fall plate located in the non-visible area is provided with an ink layer, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate; the TFT module is adhered to the bottom of the cover plate through the OCA optical glue, and the conductive silver paste is electrically connected to the FPC of the TFT module and is grounded.

[0006] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the cross-sectional shape of the annular groove is a trapezoid.

[0007] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the cross-sectional shape of the annular groove is an isosceles trapezoid.

[0008] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the annular groove is an open groove that is wide outside and narrow inside.

[0009] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the depth of the annular groove is 0.2 mm.

[0010] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the thickness of the conductive silver paste is 0.1 mm.

[0011] As a preferred implementation of the antistatic double-cover liquid crystal display screen provided by the utility model, the OCA optical adhesive completely covers the conductive silver paste.

[0012] As a preferred implementation of the anti-static double-cover liquid crystal display screen provided by the utility model, the upper surface of the anti-fall plate is covered with an anti-fingerprint film layer.

[0013] As a preferred embodiment of the antistatic double-cover liquid crystal display screen provided by the utility model, a color conversion layer is arranged on the upper surface of the anti-fingerprint film layer located in the non-display area.

[0014] As a preferred implementation of the anti-static double-cover liquid crystal display screen provided by the utility model, the hardness of the anti-fall plate is greater than the hardness of the cover plate.

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

[0016] Since the lower surface of the ring groove at the cover plate is provided with conductive silver paste, and the conductive silver paste is electrically connected to the FPC of the TFT module and grounded, the static electricity at the cover plate can be transferred to the FPC through the conductive silver paste, and then led out through the grounding of the FPC, thereby leading out the static electricity accumulated at the cover plate to avoid damaging the TFT module or users, avoiding safety accidents, and improving the competitiveness of the product. When applying OCA optical glue, the excess OCA optical glue can overflow into the ring groove and cover the conductive silver paste, thereby protecting the conductive silver paste and preventing the OCA optical glue from overflowing to other areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a structural schematic diagram of an anti-static double-cover liquid crystal display screen.

[0019] Figure 2 for Figure 1 Schematic diagram of the improved structure of the middle anti-fall plate.

[0020] Description of Figure Numbers:

[0021] Cover plate 1; anti-drop plate 2; TFT module 3; ring groove 11; conductive silver paste 4; OCA optical glue 5; adhesive layer 6; ink layer 7; FPC 8; anti-fingerprint film layer 9. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] The utility model provides an anti-static double-cover liquid crystal display screen, which includes a cover plate, an anti-fall plate and a TFT module, wherein an annular groove is provided on the lower surface of the cover plate, the annular groove is located in a non-visible area, a conductive silver paste is arranged on the lower surface of the annular groove, and an OCA optical glue is coated on the lower surface of the cover plate in the area enclosed by the annular groove; the anti-fall plate is adhered to the upper part of the cover plate through an adhesive layer, an ink layer is arranged on the lower surface of the anti-fall plate located in the non-visible area, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate; the TFT module is adhered to the lower part of the cover plate through the OCA optical glue, and the conductive silver paste is electrically connected to the FPC of the TFT module and is grounded.

[0026] Since the lower surface of the ring groove at the cover plate is provided with conductive silver paste, and the conductive silver paste is electrically connected to the FPC of the TFT module and grounded, the static electricity at the cover plate can be transferred to the FPC through the conductive silver paste, and then led out through the grounding of the FPC, thereby leading out the static electricity accumulated at the cover plate to avoid damaging the TFT module or users, avoiding safety accidents, and improving the competitiveness of the product. When applying OCA optical glue, the excess OCA optical glue can overflow into the ring groove and cover the conductive silver paste, thereby protecting the conductive silver paste and preventing the OCA optical glue from overflowing to other areas.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0028] See also Figure 1 , an anti-static double-cover liquid crystal display screen provided by the utility model, comprising a cover plate 1, an anti-drop plate 2 and a TFT module 3, a ring groove 11 is provided on the lower surface of the cover plate 1, the ring groove 11 is located in a non-visible area, a conductive silver paste 4 is arranged on the lower surface of the ring groove 11, and an OCA optical glue 5 is coated on the lower surface of the cover plate 1 in the area enclosed by the ring groove 11; the anti-drop plate 2 is pasted on the upper part of the cover plate 1 through an adhesive layer 6, and an ink layer 7 is arranged on the lower surface of the anti-drop plate 2 located in the non-visible area, and the adhesive layer 6 completely covers the ink layer 7 and the lower surface of the anti-drop plate 2. Since the ring groove 11 is located in the non-display area, the conductive silver paste 4 can be blocked by the ink layer 7 on the lower surface of the anti-drop plate 2 and will not be noticed by the user; the TFT module 3 is pasted on the lower part of the cover plate 1 through the OCA optical glue 5, and the conductive silver paste 4 is electrically connected to the FPC 8 of the TFT module 3 and is grounded. Since the lower surface of the ring groove 11 at the cover plate 1 is provided with a conductive silver paste 4, and the conductive silver paste 4 is electrically connected to the FPC8 of the TFT module 3 and grounded, the static electricity at the cover plate 1 can be transferred to the FPC8 through the conductive silver paste 4, and then grounded and led out through the FPC8, thereby leading out the static electricity accumulated at the cover plate 1 to avoid damaging the TFT module 3 or the user, avoiding safety accidents, and improving the competitiveness of the product. When applying the OCA optical glue 5, the excess OCA optical glue 5 can overflow into the ring groove 11 and cover the conductive silver paste 4, thereby protecting the conductive silver paste 4 and preventing the OCA optical glue 5 from overflowing to other areas.

[0029] Since there is an anti-fall plate 2 on the cover plate 1, and the adhesive layer 6 is printed entirely on the back of the anti-fall plate 2, it covers the ink layer 7 in the non-visible area and the lower surface of the anti-fall plate 2 in the visible area, filling the ink step difference, and will not cause the phenomenon of laminating bubbles and edge yellow spots. The cover plate 1 can be fully laminated with the upper polarizer through optical glue. Since the cover plate 1 is not provided with an ink layer 7, it will not cause the phenomenon of laminating bubbles and edge yellow spots, thereby avoiding display abnormalities of the liquid crystal display, thereby reducing the probability of defective products in the liquid crystal display, and greatly reducing the production and manufacturing costs of the liquid crystal display.

[0030] And when the anti-fall plate 2 is impacted by external force, the anti-fall plate 2 will break first. Due to the buffering effect of the adhesive layer 6, the cover plate 1 is not easy to break, so the cover plate 1 and the TFT module 3 can be well protected. When the anti-fall plate 2 is broken, the anti-fall plate 2 can be easily peeled off, and only a new anti-fall plate 2 needs to be replaced. There is no need to replace the entire LCD screen, thereby greatly reducing the maintenance cost of the LCD screen, thereby improving the product competitiveness of the LCD screen, so as to meet the company's growing quality requirements.

[0031] Furthermore, the cross-sectional shape of the annular groove 11 is a trapezoid. More preferably, the cross-sectional shape of the annular groove 11 is an isosceles trapezoid. The annular groove 11 is an open groove that is wide on the outside and narrow on the inside, so that the OCA optical adhesive 5 can stay in the annular groove 11 after entering the annular groove 11, so as to prevent the OCA optical adhesive 5 from overflowing to other areas.

[0032] Furthermore, the depth of the annular groove 11 is 0.2 mm, and the thickness of the conductive silver paste 4 is 0.1 mm, so as to provide sufficient overflow space for the OCA optical adhesive 5 to prevent the OCA optical adhesive 5 from overflowing to other areas and allow the OCA optical adhesive 5 to completely cover the conductive silver paste 4.

[0033] See also Figure 2 As a further optimization solution of Example 1, in this embodiment, the upper surface of the anti-fall plate 2 is covered with an anti-fingerprint film layer 9 to prevent the user's fingerprints from remaining on the anti-fall plate 2 and enhance the aesthetics.

[0034] Furthermore, a color conversion layer is provided on the upper surface of the anti-fingerprint film layer 9 located in the non-display area to further enhance the aesthetics of the product.

[0035] Furthermore, the hardness of the anti-fall plate 2 is greater than the hardness of the cover plate 1 to enhance the protection effect.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. An anti-static double-cover liquid crystal display screen, characterized in that: It includes A cover plate, a ring groove is formed on its lower surface, the ring groove is located in a non-visible area, a conductive silver paste is disposed on the lower surface of the ring groove, and an OCA optical glue is coated on the lower surface of the cover plate in the area enclosed by the ring groove; An anti-fall plate, which is attached to the top of the cover plate via an adhesive layer, an ink layer is provided on the lower surface of the anti-fall plate located in the non-visible area, and the adhesive layer completely covers the ink layer and the lower surface of the anti-fall plate; The TFT module is adhered to the bottom of the cover plate by the OCA optical adhesive, and the conductive silver paste is electrically connected to the FPC of the TFT module and is grounded.

2. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The cross-sectional shape of the annular groove is a trapezoid.

3. The antistatic double-cover liquid crystal display screen according to claim 2, characterized in that: The cross-sectional shape of the annular groove is an isosceles trapezoid.

4. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The annular groove is an open groove which is wide outside and narrow inside.

5. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The depth of the annular groove is 0.2 mm.

6. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The thickness of the conductive silver paste is 0.1 mm.

7. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The OCA optical adhesive completely covers the conductive silver paste.

8. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The upper surface of the anti-fall plate is covered with an anti-fingerprint film layer.

9. The antistatic double-cover liquid crystal display screen according to claim 8, 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.

10. The antistatic double-cover liquid crystal display screen according to claim 1, characterized in that: The hardness of the anti-fall plate is greater than the hardness of the cover plate.

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