Liquid crystal screen easy to rework and replace

Abstract

The utility model discloses a liquid crystal screen easy to rework and replace, which comprises a backlight module and a display module, a backlight FPC (Flexible Printed Circuit) is led out from the backlight module, and a bonding pad is arranged on the backlight FPC; the display module comprises a lower polaroid, a lower substrate, an upper substrate and an upper polaroid which are sequentially arranged above the backlight module in a stacked mode from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, and a driving IC and a display FPC are bound to the upper surface, located at the step, of the lower substrate. A bonding pad of the backlight FPC is bound on the display FPC, protective paper is attached to the portion, located on the bonding pad, of the backlight FPC, the outer edge of the protective paper is sticky, and the middle of the protective paper is not sticky. As the outer edge of the protective paper is sticky and the middle part of the protective paper is non-sticky, only the outer edge is stuck with the backlight FPC, the middle part is not stuck with the bonding pad, and the bonding pad is not taken up when the protective paper is torn off, so that the reworking and replacement are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal screen which is easy to be reworked and replaced. Background Art

[0002] The backlight FPC is usually bound to the display FPC, and a protective paper is usually pasted on the soldering pad of the backlight FPC to protect the backlight FPC and its soldering pad. However, the traditional protective paper is very sticky and difficult to tear off after it is pasted on. If the protective paper is forcibly torn off, the soldering pad may be lifted up and scrapped, which is not convenient for rework and replacement. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design a liquid crystal screen that is easy to rework and replace.

[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 screen that is easy to rework and replace, comprising a backlight module and a display module, the backlight module leads to a backlight FPC, and the backlight FPC is provided with a soldering pad; the display module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked above the backlight module from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC and a display FPC, the soldering pad of the backlight FPC is bound to the display FPC, and the backlight FPC located at the soldering pad is attached with protective paper, the outer edge of the protective paper is sticky, and the middle of the protective paper is non-sticky.

[0006] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the shape of the non-adhesive area of ​​the protective paper is square.

[0007] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the area of ​​the non-adhesive region of the protective paper is larger than the area of ​​the soldering pad.

[0008] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the distance between the edge of the non-adhesive area of ​​the protective paper and the edge of the soldering pad is at least 1 mm.

[0009] As a preferred embodiment of the liquid crystal screen that is easy to rework and replace provided by the utility model, the protective paper includes a substrate layer and an adhesive layer arranged on the edge of the lower surface of the substrate layer.

[0010] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the adhesive layer is a strong adhesive glue.

[0011] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the cross-sectional area of ​​the protective paper is larger than the cross-sectional area of ​​the backlight FPC located at the soldering pad.

[0012] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the edge of the protective paper exceeds the edge of the backlight FPC by at least 3 mm.

[0013] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the shape of the adhesive area of ​​the protective paper is frame-shaped.

[0014] As a preferred implementation of the liquid crystal screen that is easy to rework and replace provided by the utility model, the single side width of the adhesive area of ​​the protective paper is 5mm-10mm.

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

[0016] Since the outer edge of the protective paper is sticky and the middle of the protective paper is not sticky, only the outer edge is attached to the backlight FPC and the middle part is not attached to the pad. When the protective paper is torn off, the pad will not be lifted up, making it easy to rework and replace, avoiding scrapping of the pad and improving the competitiveness of the product. 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 schematic structural diagram of a liquid crystal screen that is easy to rework and replace.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure behind the hidden protective paper.

[0020] Figure 3 for Figure 1 Bottom view of the protective paper.

[0021] Description of Figure Numbers:

[0022] Backlight module 100; display module 200; backlight FPC 1; pad 2; lower substrate 3; upper substrate 4; driver IC 5; display FPC 6; protective paper 7;

[0023] Base material layer 71; Adhesive layer 72. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] The utility model provides a liquid crystal screen which is easy to be reworked and replaced, comprising a backlight module and a display module, wherein the backlight module leads to a backlight FPC, and a soldering pad is arranged on the backlight FPC; the display module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked and arranged above the backlight module from bottom to top, wherein the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and a display FPC are bound to the upper surface of the lower substrate located at the step, the soldering pad of the backlight FPC is bound to the display FPC, and a protective paper is attached to the backlight FPC located at the soldering pad, wherein the outer edge of the protective paper is sticky, and the middle of the protective paper is non-sticky.

[0028] Since the outer edge of the protective paper is sticky and the middle of the protective paper is not sticky, only the outer edge is attached to the backlight FPC and the middle part is not attached to the pad. When the protective paper is torn off, the pad will not be lifted up, making it easy to rework and replace, avoiding scrapping of the pad and improving the competitiveness of the product.

[0029] 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.

[0030] See also Figures 1 to 3 , a liquid crystal screen that is easy to rework and replace is provided by the utility model, which includes a backlight module 100 and a display module 200. The backlight module 100 leads to a backlight FPC1, and a pad 2 is arranged on the backlight FPC1; the display module 200 includes a lower polarizer, a lower substrate 3, an upper substrate 4 and an upper polarizer which are sequentially stacked and arranged above the backlight module 100 from bottom to top, the lower substrate 3 is longer than the upper substrate 4 and extends outward to form a step, the upper surface of the lower substrate 3 located at the step is bound with a driving IC 5 and a display FPC 6, the pad 2 of the backlight FPC1 is bound to the display FPC 6, and a protective paper 7 is attached to the backlight FPC1 located on the pad 2, the outer edge of the protective paper 7 is sticky, and the middle of the protective paper 7 is not sticky. Since the outer edge of the protective paper 7 is sticky and the middle of the protective paper 7 is not sticky, only the outer edge is attached to the backlight FPC1 and the middle part is not attached to the pad 2. When the protective paper 7 is torn off, the pad 2 will not be lifted up, making it easy to rework and replace, avoiding the scrapping of the pad 2 and improving the competitiveness of the product.

[0031] Further, the shape of the non-sticky area of ​​the protective paper 7 is a square, and the area of ​​the non-sticky area of ​​the protective paper 7 is larger than the area of ​​the pad 2. The distance between the edge of the non-sticky area of ​​the protective paper 7 and the edge of the pad 2 is at least 1 mm to prevent the sticky area of ​​the protective paper 7 from sticking to the pad 2.

[0032] See also Figures 1 to 3 As a further optimization scheme of Example 1, in this embodiment, the protective paper 7 includes a base material layer 71 and an adhesive layer 72. The adhesive layer 72 is arranged on the lower surface of the base material layer 71. The adhesive layer 72 is a strong adhesive to improve the adhesion of the protective paper 7.

[0033] Furthermore, the cross-sectional area of ​​the protective paper 7 is larger than the cross-sectional area of ​​the backlight FPC1 at the pad 2, and the edge of the protective paper 7 exceeds the edge of the backlight FPC1 by at least 3 mm, so that the protective paper 7 can be pasted on the display FPC6 to improve the firmness.

[0034] Furthermore, the shape of the adhesive area of ​​the protective paper 7 is frame-shaped, and the single side width of the adhesive area of ​​the protective paper 7 is 5 mm-10 mm.

[0035] 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.

[0036] 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. A liquid crystal screen that is easy to rework and replace, characterized in that: It includes a backlight module and a display module, the backlight module leads to a backlight FPC, and the backlight FPC is provided with a soldering pad; the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked and arranged above the backlight module from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC and a display FPC, the soldering pad of the backlight FPC is bound to the display FPC, and the backlight FPC located at the soldering pad is attached with protective paper, the outer edge of the protective paper is sticky, and the middle of the protective paper is non-sticky.

2. The liquid crystal screen that is easy to rework and replace according to claim 1, characterized in that: The non-adhesive area of ​​the protective paper is in the shape of a square.

3. The liquid crystal screen that is easy to rework and replace according to claim 2, characterized in that: The area of ​​the non-adhesive region of the protection paper is larger than the area of ​​the solder pad.

4. The liquid crystal screen that is easy to rework and replace according to claim 3, characterized in that: The distance between the edge of the non-adhesive area of ​​the protective paper and the edge of the solder pad is at least 1 mm.

5. The liquid crystal screen that is easy to rework and replace according to claim 1, characterized in that: The protective paper includes a base material layer and an adhesive layer arranged at an edge of a lower surface of the base material layer.

6. The liquid crystal screen that is easy to rework and replace according to claim 5, characterized in that: The adhesive layer is a strong adhesive.

7. The liquid crystal display panel that is easy to rework and replace according to claim 1, characterized in that: The cross-sectional area of ​​the protection paper is larger than the cross-sectional area of ​​the backlight FPC located at the pad.

8. The liquid crystal screen that is easy to rework and replace according to claim 7, characterized in that: The edge of the protective paper exceeds the edge of the backlight FPC by at least 3 mm.

9. The liquid crystal display panel that is easy to rework and replace according to claim 1, characterized in that: The shape of the adhesive area of ​​the protection paper is frame-shaped.

10. The liquid crystal screen that is easy to rework and replace according to claim 9, characterized in that: The single side width of the adhesive area of ​​the protective paper is 5mm-10mm.

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