Liquid crystal display screen capable of rapidly releasing static electricity

Abstract

The utility model discloses a liquid crystal display screen capable of quickly releasing static electricity, which comprises a backlight iron stand, a copper foil, a backlight module and a display module, and the copper foil is adhered to the lower surface of the backlight iron stand through a first conductive double-sided adhesive; the backlight module is arranged above the backlight iron stand; the display module is arranged above the backlight module, an FPC is led out of the display module, the FPC is bent outwards to the position below the copper foil, and the grounding exposed copper end of the FPC is pasted to the lower surface of the copper foil through a second conductive double face. Due to the fact that the conductivity of copper is much better than that of iron, the copper foil is additionally attached between the backlight iron frame and the FPC in the structure, static electricity of the module can be rapidly released to the copper foil firstly and then transmitted to the backlight iron frame, the static electricity in the FPC is rapidly led out, and the anti-static performance of the display screen module is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid crystal display technical field more specifically, relate to a kind of liquid crystal display that quickly releases static electricity. BACKGROUND

[0002] To improve the anti-static performance of module, the usual design is the back of FPC in liquid crystal display screen leaks copper, then adds to stick conductive glue, FPC is fixed to the back of back light iron stand by folding, so as to realize the FPC of liquid crystal display screen and back light iron stand grounding, but as the requirement of customer to the anti-static performance of display screen module is higher and higher, this structure has been unable to meet the requirement of customer to quickly release static electricity. SUMMARY

[0003] The technical problem to be solved by the utility model is how to quickly lead out static electricity in FPC to improve the anti-static performance of display screen module.

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

[0005] To solve the above technical problem, the utility model provides a kind of liquid crystal display that quickly releases static electricity, it includes back light iron stand, copper foil, back light module and display module, the copper foil is pasted in the lower surface of the back light iron stand by first conductive double-sided adhesive;The back light module is set to the top of the back light iron stand;The display module is set to the top of the back light module, and it leads out FPC outward, the FPC is bent to the lower side of the copper foil outward, and the grounding copper exposed end of the FPC is pasted in the lower surface of the copper foil by second conductive double-sided adhesive.

[0006] As a preferred embodiment of the utility model provided, the thickness of the copper foil is 0.05mm-0.1mm.

[0007] As a preferred embodiment of the utility model provided, the contact area of the copper foil with back light iron stand is greater than the cross-sectional area of FPC.

[0008] As a preferred embodiment of the utility model provided, the FPC includes non-bending area and bending area arranged on both sides of the non-bending area, PI reinforcing plate and a plurality of vias are arranged on the bending area, and the PI reinforcing plate completely covers a plurality of the vias.

[0009] As a preferred embodiment of the utility model provided, a plurality of the vias are arranged in line segment shape.

[0010] As a preferred implementation form of the liquid crystal display screen of the utility model for quickly releasing static electricity, the FPC comprises a lower protective film, a lower copper layer, a base material layer, an upper copper layer and an upper protective film arranged in sequence from bottom to top, and the PI reinforcing plate is arranged above the upper protective film.

[0011] As a preferred implementation form of the liquid crystal display screen of the utility model for quickly releasing static electricity, the PI reinforcing plate is a PI cover film.

[0012] As a preferred implementation form of the liquid crystal display screen of the utility model for quickly releasing static electricity, the thickness of the PI cover film is 0.1 mm.

[0013] As a preferred implementation form of the liquid crystal display screen of the utility model for quickly releasing static electricity, the PI reinforcing plate does not exceed the non-bending area.

[0014] As a preferred implementation form of the liquid crystal display screen of the utility model for quickly releasing static electricity, the shape of the via hole is a circular hole.

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

[0016] Since the conductivity of copper is much better than that of iron, a copper foil is attached between the backlight iron stand and the FPC in the structure, so that the static electricity of the module can be quickly released to the copper foil first, and then transmitted to the backlight iron stand, thereby quickly conducting the static electricity in the FPC and improving the anti-static performance of the display screen module. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure schematic view of the liquid crystal display screen for quickly releasing static electricity provided by the utility model.

[0019] Figure 2 The Figure 1 Enlarged view of A in the middle.

[0020] Figure 3 The Figure 1 Side view of

[0021] Figure 4 The Figure 3 Structure schematic view of the utility model after hiding the FPC.

[0022] Figure 5 This is a schematic diagram of the improved structure of FPC.

[0023] Figure 6 for Figure 5 Side view.

[0024] Explanation of icon numbers:

[0025] 1. Backlight iron frame; 2. Copper foil; 3. First conductive double-sided; 4. FPC; 5. Second conductive double-sided adhesive; 401. Non-bending area; 402. Bending area; 41. PI reinforcing plate; 42. Via. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] The utility model provides a kind of liquid crystal display that quickly releases static electricity, it includes backlight iron stand, copper foil, backlight module and display module, the copper foil is pasted in the lower surface of the backlight iron stand by first conductive double-sided adhesive;The backlight module is arranged above the backlight iron stand;The display module is arranged above the backlight module, and it has FPC leading out outward, the FPC is bent to the lower side of the copper foil outward, and the ground copper exposed end of the FPC is pasted in the lower surface of the copper foil by second conductive double-sided adhesive.

[0030] Since the conductivity of copper is much better than that of iron, a copper foil is added between the backlight iron stand and the FPC in the structure, so that the static electricity of the module can be quickly discharged to the copper foil first, and then transmitted to the backlight iron stand, thereby quickly discharging the static electricity in the FPC and improving the anti-static performance of the display module.

[0031] In order to enable personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. The utility model will be described in detail below with reference to the drawings and embodiments, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the utility model, but cannot be understood as a limitation on the utility model.

[0032] Embodiment 1, please refer to Figures 1 to 4 The utility model provides a kind of liquid crystal display that quickly releases static electricity, it includes backlight iron stand 1, copper foil 2, backlight module and display module, copper foil 2 is pasted in the lower surface of backlight iron stand 1 by first conductive double-sided adhesive 3;The backlight module is arranged above the backlight iron stand 1;The display module is arranged above the backlight module, and it has FPC 4 leading out outward, FPC 4 is bent to the lower side of copper foil 2 outward, and the ground copper exposed end of FPC 4 is pasted in the lower surface of copper foil 2 by second conductive double-sided adhesive 5. Since the conductivity of copper is much better than that of iron, a copper foil 2 is added between the backlight iron stand 1 and the FPC 4 in the structure, so that the static electricity of the module can be quickly discharged to the copper foil 2 first, and then transmitted to the backlight iron stand 1, thereby quickly discharging the static electricity in the FPC 4 and improving the anti-static performance of the display module.

[0033] Further, the thickness of the copper foil 2 is 0.05mm-0.1mm.

[0034] Further, the contact area of the copper foil 2 with the backlight iron stand 1 is greater than the cross-sectional area of the FPC 4, so that the static electricity in the copper foil 2 can be quickly discharged to the backlight iron stand 1.

[0035] Embodiment 2, please refer to Figure 5 AndFigure 6 As a further optimization of embodiment 1, in this embodiment, the FPC4 includes a non-bending area 401 and bending areas 402 arranged on both sides of the non-bending area 401, and the PI reinforcing plate 41 and a plurality of vias 42 are arranged on the bending area 402. The plurality of vias 42 are bridges connecting the upper and lower copper layers, and their reliability is very important. The via 42 cannot be subjected to heavy pressure, and is also afraid of being scratched and being folded. Therefore, the general bending area 402 is not allowed to punch the via 42, because the bending force will directly act on the via 42, affecting the reliability of the via 42. The PI reinforcing plate 41 completely covers the plurality of vias 42. A plurality of vias 42 are arranged on the non-bending area 401. The via 42 is relatively weak and prone to stress concentration, which can cause the via 42 to break. Since the PI reinforcing plate 41 completely covers the via 42, the stress is concentrated around the reinforcing plate instead of the via 42, preventing the risk of breaking the via 42 and avoiding the failure of the FPC4.

[0036] Further, the plurality of vias 42 are arranged in a line segment shape. Since the reinforcing plate completely covers the via 42, even if the via 42 is arranged in a line segment shape, the via 42 is not prone to breaking, improving the designability of the product and improving the competitiveness of the product.

[0037] Further, the FPC4 includes a lower protective film, a lower copper layer, a substrate layer, an upper copper layer and an upper protective film arranged in sequence from bottom to top, and the PI reinforcing plate 41 is arranged above the upper protective film.

[0038] Further, the PI reinforcing plate 41 is a PI cover film, which has lower cost and simpler assembly process.

[0039] Further, the thickness of the PI cover film is 0.1 mm to ensure that the PI cover film has sufficient strength. The PI cover film is fixed by double-sided adhesive, and the thickness of the double-sided adhesive is 0.025 mm. The distance between the edge of the cover film and the via 42 is greater than 0.5 mm to ensure that the stress concentration does not affect the via 42, preventing the risk of breaking the via 42 and avoiding the failure of the FPC4.

[0040] Further, the PI reinforcing plate 41 does not exceed the non-bending area 401. That is, the PI reinforcing plate 41 is arranged in the non-bending area 401 to prevent stress concentration in the bending area 402 and avoid breaking of the bending area 402.

[0041] Further, the shape of the via 42 is a circular hole.

[0042] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0043] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments, the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and 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 foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement for part of the technical features. Any equivalent structure made by using the contents of the specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A liquid crystal display panel for fast discharge of static electricity, characterized by comprising: It includes: Backlight iron stand; Copper foil, which is pasted on the lower surface of the backlight iron stand by the first conductive double-sided adhesive; Backlight module, which is arranged above the backlight iron stand; Display module, which is arranged above the backlight module, has an FPC leading outwards, the FPC is bent outwards below the copper foil, and the copper exposed end of the ground of the FPC is pasted on the lower surface of the copper foil by the second conductive double-sided adhesive.

2. The quick-release electrostatic liquid crystal display according to claim 1, wherein, The thickness of the copper foil is 0.05mm-0.1mm.

3. The quick release electrostatic liquid crystal display panel according to claim 1, wherein, The contact area of the copper foil with the backlight iron stand is greater than the cross-sectional area of the FPC.

4. The quick-release electrostatic liquid crystal display of claim 1, wherein, The FPC includes a non-bending area and bending areas arranged on both sides of the non-bending area, the bending areas are provided with a PI reinforcing plate and a plurality of vias, and the PI reinforcing plate completely covers the plurality of vias.

5. The quick-release electrostatic liquid crystal display panel of claim 4, wherein, The plurality of vias are arranged in a line segment shape.

6. The quick-release electrostatic liquid crystal display panel of claim 4, wherein, The FPC includes a lower protective film, a lower copper layer, a base material layer, an upper copper layer and an upper protective film arranged in sequence from bottom to top, and the PI reinforcing plate is arranged above the upper protective film.

7. The quick release electrostatic liquid crystal display panel according to claim 4, wherein, The PI reinforcing plate is a PI cover film.

8. The quick-release electrostatic liquid crystal display of claim 7, wherein, The thickness of the PI cover film is 0.1mm.

9. The quick-release electrostatic liquid crystal display of claim 4, wherein, The PI reinforcing plate does not exceed the non-bending area.

10. The quick release electrostatic liquid crystal display panel of claim 4, wherein, The shape of the via is a round hole.

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