Anti-static liquid crystal display screen

Abstract

The utility model discloses an anti-static liquid crystal display screen which comprises a lower iron frame, a reflector plate, a light guide plate, an optical film set, a lower polaroid, a large piece of glass, a small piece of glass, an upper polaroid and a cover plate which are sequentially stacked from bottom to top, and the lower iron frame comprises a bottom plate and a side wall extending upwards from the edge of the bottom plate. The large piece of glass is longer than the small piece of glass and extends outwards to form a step, a driving chip is bound on the upper surface of the large piece of glass located at the step, conductive foam is arranged on the upper surface of the driving chip, and the conductive foam extends outwards to the outer surface of the side wall and the lower surface of the bottom plate. Edge wrapping paper is fixed on the outer surface of the conductive foam. The conductive foam is arranged on the upper surface of the driving chip and extends outwards to the outer surface of the side wall and the lower surface of the bottom plate, so that static electricity on the driving chip can be discharged from the side wall and the bottom plate of the lower iron frame through the conductive foam.

Description

Technical Field

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

[0002] Once the static electricity in the air enters the surface of the LCD screen, it is difficult to discharge. When the static electricity in the LCD screen accumulates to a certain level, it can easily damage the driver chip bound to the large glass, causing the driver chip to work abnormally, thereby increasing the probability of defective LCD screens. The production and manufacturing costs of LCD screens will also increase significantly, thereby reducing the product competitiveness of LCD screens and failing to meet the company's growing quality requirements. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to avoid static electricity from damaging the driver chip and ensure that the driver chip works normally.

[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 liquid crystal display screen, which includes a lower iron frame, a reflective sheet, a light guide plate, an optical film group, a lower polarizer, a large piece of glass, a small piece of glass, an upper polarizer and a cover plate which are stacked in sequence from bottom to top, the lower iron frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate, the large piece of glass is longer than the small piece of glass and extends outward to form a step, the upper surface of the large piece of glass located at the step is bound with a driving chip, the upper surface of the driving chip is provided with conductive foam, the conductive foam extends outward and extends to the outer surface of the side wall and the lower surface of the bottom plate, and the outer surface of the conductive foam is fixed with edging paper.

[0006] As a preferred embodiment of the anti-static liquid crystal display screen provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

[0007] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the shape of the groove is square or circular.

[0008] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the groove is a closing groove which is narrow outside and wide inside.

[0009] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the cross-sectional shape of the groove is an isosceles trapezoid.

[0010] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, at least one elastic block is provided between the side of the light guide plate away from the light incident side and the side wall.

[0011] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, at least one protrusion is provided on both sides of the elastic block.

[0012] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the elastic block is provided with a shock absorbing hole between adjacent protrusions.

[0013] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, shock absorbing grooves are provided on the inner wall of the shock absorbing hole close to the side of the protrusion, and shock absorbing devices are provided between adjacent shock absorbing grooves.

[0014] As a preferred implementation of the anti-static liquid crystal display screen provided by the utility model, the shock absorbing device is a spring or two magnets with the same poles facing each other.

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

[0016] Since the upper surface of the driver chip is provided with conductive foam, the conductive foam protrudes outward and extends to the outer surface of the side wall and the lower surface of the bottom plate, so that the static electricity on the driver chip can be discharged through the conductive foam via the side wall and the bottom plate of the lower iron frame, thereby avoiding abnormal operation of the driver chip, thereby reducing the probability of defective liquid crystal display screens, and the production and manufacturing costs of liquid crystal display screens will also be greatly reduced, thereby improving the product competitiveness of liquid crystal display screens, thereby meeting the company's growing quality requirements; at the same time, since the outer surface of the conductive foam is fixed with edging paper, the conductive foam also has the function of edging paper, and there is no need to wrap the edging paper again, which saves the step of wrapping the edging paper and reduces the assembly cost. 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 an anti-static liquid crystal display screen.

[0019] Figure 2 This is a schematic diagram of the structure of Example 2.

[0020] Figure 3 for Figure 2Schematic diagram of the decomposition structure.

[0021] Figure 4 for Figure 2 Schematic diagram of the improved structure.

[0022] Figure 5 This is a schematic diagram of the structure of Example 3.

[0023] Figure 6 for Figure 5 Schematic diagram of the structure of the elastic block.

[0024] Description of Figure Numbers:

[0025] Lower iron frame 1; light guide plate 2; large glass 3; small glass 4; cover plate 5; bottom plate 11; side wall 12; driver chip 6; conductive foam 7; edge paper 71;

[0026] Plastic layer 8; groove 51;

[0027] Elastic block 9; convex block 91; shock absorbing hole 92; shock absorbing groove 93; shock absorbing device 94. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The utility model provides an anti-static liquid crystal display screen, which comprises a lower iron frame, a reflective sheet, a light guide plate, an optical film group, a lower polarizer, a large piece of glass, a small piece of glass, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, the lower iron frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, the large piece of glass is longer than the small piece of glass and extends outward to form a step, a driving chip is bound to the upper surface of the large piece of glass located at the step, a conductive foam is arranged on the upper surface of the driving chip, the conductive foam extends outward and extends to the outer surface of the side wall and the lower surface of the bottom plate, and an edge paper is fixed to the outer surface of the conductive foam.

[0032] Since the upper surface of the driver chip is provided with conductive foam, the conductive foam protrudes outward and extends to the outer surface of the side wall and the lower surface of the bottom plate, so that the static electricity on the driver chip can be discharged through the conductive foam via the side wall and the bottom plate of the lower iron frame, thereby avoiding abnormal operation of the driver chip, thereby reducing the probability of defective liquid crystal display screens, and the production and manufacturing costs of liquid crystal display screens will also be greatly reduced, thereby improving the product competitiveness of liquid crystal display screens, thereby meeting the company's growing quality requirements; at the same time, since the outer surface of the conductive foam is fixed with edging paper, the conductive foam also has the function of edging paper, and there is no need to wrap the edging paper again, which saves the step of wrapping the edging paper and reduces the assembly cost.

[0033] 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.

[0034] Example 1

[0035] See also Figure 1, an anti-static liquid crystal display screen provided by the utility model, comprising a lower iron frame 1, a reflective sheet, a light guide plate 2, an optical film group, a lower polarizer, a large piece of glass 3, a small piece of glass 4, an upper polarizer and a cover plate 5 which are sequentially stacked from bottom to top, the lower iron frame 1 comprising a bottom plate 11 and a side wall 12, the side wall 12 is formed by extending upward from the edge of the bottom plate 11, the reflective sheet, the light guide plate 2 and the optical film group are sequentially stacked on the upper surface of the bottom plate 11 from bottom to top, the large piece of glass 3 is longer than the small piece of glass 4 and extends outward to form a step, a driving chip 6 is bound to the upper surface of the large piece of glass 3 located at the step, a conductive foam 7 is arranged on the upper surface of the driving chip 6, the conductive foam 7 extends outward and extends to the outer surface of the side wall 12 and the lower surface of the bottom plate 11, and an edge wrapping paper 71 is fixed to the outer surface of the conductive foam 7.

[0036] Example 2

[0037] See also Figures 2 to 4 As a further optimization scheme of Example 1, in this embodiment, the upper surface of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed downward on the upper surface of the cover plate 5 by etching, and a portion of the lower surface of the plastic layer 8 is embedded in each groove 51. Since the surface of the groove 51 formed by etching has a certain degree of roughness, the plastic layer 8 can be tightly bonded to the groove 51 to prevent the cover plate 5 and the plastic layer 8 from falling off. Since the upper part of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed on the upper surface of the cover plate 5 by etching, and the plastic layer 8 can be embedded in the interior of the plurality of grooves 51, the grooves 51 formed by etching make the inner surface of the grooves 51 have a certain degree of roughness, and the surface of the grooves 51 with a certain degree of roughness can improve the bonding force between the grooves 51 and the plastic layer 8, thereby reducing the possibility of separation of the grooves 51 and the plastic layer 8. When the LCD screen is hit or falls, the plastic layer 8 on the upper surface of the cover plate 5 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 5. Since the plastic layer 8 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 5, thereby effectively reducing the risk of the cover plate 5 being broken or damaged; and when the LCD screen is subjected to external force, even if the external force is large, it will only damage the plastic layer 8 on the upper surface of the cover plate 5, and will not directly damage the cover plate 5, thereby preventing the cover plate 5 from being damaged and causing the LCD screen to be unable to be used normally, thereby bringing a better user experience to users and improving the anti-fall ability of the LCD screen.

[0038] Furthermore, the shape of the groove 51 can be square or circular, and the cross-sectional shape of the groove 51 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 51 is an isosceles trapezoid, and the groove 51 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 51 can allow the plastic layer 8 to be tightly embedded in the groove 51, thereby preventing the groove 51 from separating from the plastic layer 8, thereby preventing the cover plate 5 from falling off from the plastic layer 8. The elongated groove 51 can increase the fitting portion between the plastic layer 8 and the groove 51, thereby increasing the fitting strength between the groove 51 and the plastic layer 8.

[0039] Example 3

[0040] See also Figure 5 and Figure 6 As a further optimization scheme of Example 1, in this embodiment, at least one elastic block 9 is provided between the side of the light guide plate 2 away from the light incident side and the side wall 12. The elastic block 9 can make the light guide plate 2 firmly abut against the elastic block 9, buffer the impact force of the light guide plate 2 on the lower frame, avoid the collision between the light guide plate 2 and the lower frame and cause noise, and also can improve the service life of the light guide plate 2.

[0041] Furthermore, at least one protrusion 91 is provided on both sides of the elastic block 9 , and the protrusion 91 directly abuts against the light guide plate 2 and the side wall 12 of the lower frame, which can align the elastic block 9 with the light guide plate 2 and the side wall 12 , further improving the buffering performance of the elastic block 9 .

[0042] As the elastic block 9 is used for a longer time, the elasticity of the elastic block 9 will also weaken due to aging. In order to increase the ability of the elastic block 9 to buffer the impact force and increase the service life of the elastic block 9, the elastic block 9 is provided with a shock-absorbing hole 92 between adjacent protrusions 91. In this embodiment, the shock-absorbing hole 92 is a square hole. When the light guide plate 2 hits the elastic block 9, the elastic block 9 will be concave and deformed in the direction of the shock-absorbing hole 92 to absorb the impact force of the light guide plate 2, thereby further achieving the purpose of shock absorption and noise reduction. It should be noted that the shock-absorbing hole 92 can be a through hole or a blind hole, or an inner hole built into the elastic block 9, which is not limited here and falls within the scope of protection of the utility model. The present embodiment uses a through hole, which is easy to manufacture and has a low production cost. The shape of the shock-absorbing hole 92 can be a square hole or a round hole, which can be selected according to actual conditions and is not limited here.

[0043] In order to further increase the ability of the elastic block 9 to buffer the impact force, a shock-absorbing groove 93 is provided on the inner wall of the shock-absorbing hole 92 close to the side of the protrusion 91. In this embodiment, there are only two protrusions 91, so there are only two shock-absorbing grooves 93. It is possible to set multiple protrusions 91 and multiple shock-absorbing grooves 93 according to actual conditions. A shock-absorbing device 94 is provided between adjacent shock-absorbing grooves 93. The shock-absorbing device 94 can be used to further increase the ability of the elastic block 9 to buffer the impact force and absorb the impact force of the light guide plate 2, thereby further achieving the purpose of shock absorption and noise reduction.

[0044] Furthermore, the shock absorbing device 94 is any one of a spring or two magnets with the same poles facing each other. The elastic force of the spring or the repulsive force generated by the two magnets with the same poles facing each other is used to further increase the ability of the elastic block 9 to buffer the impact force. The spring and magnet are both standard commodities that can be purchased on the market, and no special customization is required. The procurement cost is low and can be replaced at any time, which is cost-effective.

[0045] In order to further reduce the sound generated by the collision between the components, the elastic block 9 is interference fit with the light guide plate 2 and the side wall 12 of the lower frame. One protrusion 91 of the elastic block 9 abuts on the light guide plate 2, and the other protrusion 91 abuts on the side wall 12. Due to the interference fit, it can be regarded as a whole. When the speed of the external environment changes, the sound of the module can be reduced to a minimum, and the module can be completely prevented from making any sound, achieving zero noise and reducing vibration.

[0046] 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.

[0047] 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 liquid crystal display screen, characterized in that: It includes a lower iron frame, a reflective sheet, a light guide plate, an optical film group, a lower polarizer, a large piece of glass, a small piece of glass, an upper polarizer and a cover plate which are stacked in sequence from bottom to top. The lower iron frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate. The large piece of glass is longer than the small piece of glass and extends outward to form a step. A driving chip is bound to the upper surface of the large piece of glass located at the step. A conductive foam is arranged on the upper surface of the driving chip. The conductive foam extends outward and extends to the outer surface of the side wall and the lower surface of the bottom plate. Binding paper is fixed to the outer surface of the conductive foam.

2. The antistatic liquid crystal display screen according to claim 1, characterized in that: A plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

3. The antistatic liquid crystal display screen according to claim 2, characterized in that: The shape of the groove is square or circular.

4. The antistatic liquid crystal display screen according to claim 2, characterized in that: The groove is a closing groove which is narrow outside and wide inside.

5. The antistatic liquid crystal display screen according to claim 4, characterized in that: The cross-sectional shape of the groove is an isosceles trapezoid.

6. The antistatic liquid crystal display screen according to claim 1, characterized in that: At least one elastic block is disposed between the side of the light guide plate away from the light incident side and the side wall.

7. The antistatic liquid crystal display screen according to claim 6, characterized in that: At least one protrusion is disposed on both sides of the elastic block.

8. The antistatic liquid crystal display screen according to claim 7, characterized in that: The elastic block is provided with a shock absorbing hole between adjacent protrusions.

9. The antistatic liquid crystal display screen according to claim 8, characterized in that: Shock-absorbing grooves are arranged on the inner wall of the shock-absorbing hole on one side close to the protrusion, and shock-absorbing devices are arranged between adjacent shock-absorbing grooves.

10. The antistatic liquid crystal display screen according to claim 9, characterized in that: The shock absorbing device is a spring or two magnets with the same poles facing each other.

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