Low-thickness liquid crystal display screen

Abstract

The utility model discloses a low-thickness liquid crystal display screen which comprises a backlight module, a display module and a cover plate, and a backlight FPC is led out of the backlight module; the display module is arranged above the backlight module, a display FPC is led out of the display module, and the backlight FPC is bound on the display FPC; the cover plate is arranged above the display module, a black ink layer is arranged on the lower surface of the cover plate, a silk-screen glue layer is arranged on the lower surface of the black ink layer, the silk-screen glue layer is in a square shape, the black ink layer and the silk-screen glue layer are both located in a non-display area, and the cover plate is fixedly pasted to the display module through the silk-screen glue layer. The thickness of the silk-screen glue layer is 0.1 mm, and the black ink layer and the silk-screen glue layer are formed on the lower surface of the cover plate in a silk-screen mode. According to the liquid crystal display screen, the pressure maintaining action after the foam rubber is attached can be omitted, the cost of the silk-screen glue layer is low, the cost can be reduced, the dustproof capacity can be improved, and the overall stacking thickness of the liquid crystal display screen can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid crystal display technical field more specifically, relate to a low thickness liquid crystal display. BACKGROUND

[0002] Generally, the cover plate of frame pasting liquid crystal display and display module are fixed by frame pasting bubble cotton rubber, since the bubble cotton rubber is pasted, pressure maintaining is needed to activate the viscosity of bubble cotton rubber, so generally 0.3mm-0 of the thickness of the bubble cotton rubber is pasted, the bubble cotton has certain compressibility when pressure maintaining, can avoid screen breakage when pressure maintaining, but it will cause the thickness of liquid crystal display to increase.

[0003] Generally, bubble cotton rubber has two choices, one is bubble cotton rubber of mouth-shaped type, bubble cotton rubber of mouth-shaped type is more expensive due to more waste, the other is spliced bubble cotton rubber, and the cost of spliced bubble cotton rubber is low due to less waste, but since it is spliced, there is a gap, and dust may enter. INVENTION CONTENTS

[0004] The utility model solves the technical problem of how to reduce the thickness of liquid crystal display and reduce product cost.

[0005] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0006] To solve the above technical problem, the utility model provides a low thickness liquid crystal display, which comprises a backlight module, a display module and a cover plate, the backlight module has a backlight FPC led out outward, the display module is arranged above the backlight module, the display module has a display FPC led out outward, the backlight FPC is bound on the display FPC, the cover plate is arranged above the display module, the lower surface of the cover plate is provided with a black ink layer, the lower surface of the black ink layer is provided with a silk screen glue layer, the shape of the silk screen glue layer is mouth-shaped, the black ink layer and the silk screen glue layer are both located in the non-display area, the cover plate is pasted and fixed with the display module through the silk screen glue layer, the thickness of the silk screen glue layer is 0.1mm, and the black ink layer and the silk screen glue layer are both formed on the lower surface of the cover plate in a silk screen mode.

[0007] As a preferred embodiment of the low thickness liquid crystal display provided by the utility model, the total length of the silk screen glue layer is 35mm, the total width of the silk screen glue layer is 22mm, the width of the silk screen glue layer at the top is 0.6mm, the width of the silk screen glue layer at the left and right sides is 0.8mm, and the width of the silk screen glue layer at the bottom is 2.1mm.

[0008] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the backlight module comprises a lower iron stand, the lower iron stand comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, the lower surface of the bottom plate is provided with a PCB plate, the top and bottom of the lower surface of the bottom plate are each punched into at least one retaining wall, the retaining wall is perpendicular to the bottom plate, the left and right sides of the lower surface of the bottom plate are each punched into at least one twisted foot, the twisted foot is rotatable, and the PCB plate is placed in the space defined by the retaining wall and the twisted foot.

[0009] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the width of the retaining wall is 8mm to 12mm.

[0010] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the assembly gap between the retaining wall and the PCB plate is 0.3mm to 0.5mm.

[0011] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the cross-sectional shape of the twisted foot is L-shaped, and the twisted foot comprises a root connected with the bottom plate and a twisted part connected with the root.

[0012] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the width of the root of the twisted foot is 4mm to 6mm, and the width of the twisted part of the twisted foot is 4mm to 6mm.

[0013] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, an inner recess is formed at the connection between the inner side of the root and the twisted part.

[0014] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the inner recess is smoothly transitioned.

[0015] As a preferred implementation form of the low-thickness liquid crystal display screen provided by the utility model, the depth of the inner recess is 0.5mm to 1.0mm, and the distance between the deepest point of the inner recess and the lower surface of the root is 1.5mm to 2.5mm.

[0016] The utility model has the following beneficial effects:

[0017] Since the lower surface of the cover plate is provided with a black ink layer and a silk-screen glue layer, the cover plate is fixedly attached to the display module through the silk-screen glue layer, the pressure maintaining operation after the attachment of the foam rubber can be omitted, the cost of the silk-screen glue layer is low, the cost can be reduced, the dustproof capability can be improved, and since the thickness of the silk-screen glue layer can be made thinner, the overall stacking thickness of the liquid crystal display screen can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the scheme in the present application, the drawings required to be used in the following embodiment description will be briefly introduced, obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 The structure diagram of the low-thickness liquid crystal display screen is provided.

[0020] Figure 2 The structure diagram of the low-thickness liquid crystal display screen is provided. Figure 1 The enlarged view of A in the structure diagram of the low-thickness liquid crystal display screen is provided.

[0021] Figure 3 The bottom view of the cover plate is provided.

[0022] Figure 4 The structure diagram of the lower iron stand is provided.

[0023] Figure 5 The bottom view of the lower iron stand and the PCB plate after cooperation is provided.

[0024] Figure 6 The bottom view of the lower iron stand is provided.

[0025] Figure 7 The enlarged view of B in the structure diagram of the low-thickness liquid crystal display screen is provided. Figure 4 The enlarged view of B in the structure diagram of the low-thickness liquid crystal display screen is provided.

[0026] Explanation of reference numerals:

[0027] Display screen module 1; cover plate 2; backlight FPC 3; display FPC 4; black ink layer 21; silk screen glue layer 22;

[0028] Lower iron stand 5; bottom plate 51; side wall 52; PCB plate 6; retaining wall 53; twisted leg 54; root 541; twisted part 542; inner recess 543. DETAILED DESCRIPTION

[0029] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0031] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0032] The utility model provides a kind of low thickness liquid crystal display, it includes backlight module, display module and cover plate, the backlight module leads out to outside with backlight FPC;The display module is set in the upper of the backlight module, and display module leads out to outside with display FPC, the backlight FPC is bound on the display FPC;The cover plate is set in the upper of the display module, the lower surface of the cover plate is provided with black ink layer, the lower surface of the black ink layer is provided with silk printing glue layer, the shape of the silk printing glue layer is mouth-shaped, the black ink layer and silk printing glue layer are all located in non-display area, the cover plate is pasted and fixed with display module by the silk printing glue layer, the thickness of the silk printing glue layer is 0.1mm, the black ink layer and the silk printing glue layer are all formed in the lower surface of cover plate by silk printing.

[0033] Because the lower surface of cover plate is provided with black ink layer and silk printing glue layer, cover plate is pasted and fixed with display module by the silk printing glue layer, it can dispense with the pressure maintaining action after the bonding of foam rubber glue, the cost of silk printing glue layer is lower, it can reduce cost, also can improve dustproof capacity, and because the thickness of silk printing glue layer can be made thinner, therefore the overall stacking thickness of liquid crystal display can be reduced.

[0034] For those skilled in the technical field, the technical solutions in the embodiments of the application will be described clearly and completely below in conjunction with the drawings. The utility model will be described in detail below by referring to the drawings and embodiments, and the examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0035] Embodiment 1, please refer to Figures 1 to 3 A low-thickness liquid crystal display provided by the utility model, which comprises a display screen module 1 and a cover plate 2, the display screen module 1 comprises a backlight module and a display module, the backlight module has a backlight FPC 3 led out outwardly; the display module is arranged above the backlight module, the display module has a display FPC 4 led out outwardly, and the backlight FPC 3 is bound on the display FPC 4; the cover plate 2 is arranged above the display module, the lower surface of the cover plate 2 is provided with a black ink layer 21, the lower surface of the black ink layer 21 is provided with a silk-screen glue layer 22, the shape of the silk-screen glue layer 22 is a mouth-shaped type, the black ink layer 21 and the silk-screen glue layer 22 are both located in a non-display area, the cover plate 2 is fixedly adhered to the display module through the silk-screen glue layer 22, the thickness of the silk-screen glue layer 22 is 0.1 mm, and the black ink layer 21 and the silk-screen glue layer 22 are both formed on the lower surface of the cover plate 2 in a silk-screen manner. Since the lower surface of the cover plate 2 is provided with the black ink layer 21 and the silk-screen glue layer 22, and the cover plate 2 is fixedly adhered to the display module through the silk-screen glue layer 22, the pressure maintaining action after the foam rubber glue is pasted can be omitted, the cost of the silk-screen glue layer 22 is relatively low, the cost can be reduced, the dustproof capability can be improved, and since the thickness of the silk-screen glue layer 22 can be made thinner, the overall stacking thickness of the liquid crystal display can be reduced.

[0036] Further, the total length of the silk-screen glue layer 22 is 35 mm, the total width of the silk-screen glue layer 22 is 22 mm, the width of the silk-screen glue layer 22 located at the top is 0.6 mm, the width of the silk-screen glue layer 22 located at the left and right sides is 0.8 mm, and the width of the silk-screen glue layer 22 located at the bottom is 2.1 mm.

[0037] Embodiment 2, please refer to Figures 4 to 7As a further optimization of embodiment 1, in this embodiment, the backlight module includes a lower iron stand 5, the lower iron stand 5 includes a bottom plate 51 and a side wall 52 extending upward from the edge of the bottom plate 51, a PCB board 6 is arranged below the bottom plate 51, at least one retaining wall 53 is formed on the top and bottom of the lower surface of the bottom plate 51 by stamping, the retaining wall 53 is perpendicular to the bottom plate 51, at least one twisted foot 54 is formed on the left and right sides of the lower surface of the bottom plate 51 by stamping, in this embodiment, there are four retaining walls 53, two retaining walls 53 are arranged on the top and bottom of the bottom plate 51, there are four twisted feet 54, two twisted feet 54 are arranged on the left and right sides of the bottom plate 51, in other embodiments, the number and position of the twisted feet 54 are evenly distributed to achieve the limiting and fixing effect, the twisted foot 54 is rotatable, and the PCB board 6 is placed in the space defined by the retaining wall 53 and the twisted foot 54. Since the top and bottom of the lower surface of the bottom plate 51 are formed with the retaining wall 53 by stamping, and the left and right sides of the lower surface of the bottom plate 51 are formed with the twisted foot 54 by stamping, the twisted foot 54 and the retaining wall 53 are arranged on the bottom plate 51 by using a mold stamping method, the PCB board 6 is limited by the retaining wall 53, and the PCB board 6 is fixed by rotating the twisted foot 54, so that the assembly reliability of the PCB board 6 can be improved without affecting the cost, and the PCB board 6 can be prevented from falling off.

[0038] Further, the width of the retaining wall 53 is 8mm to 12mm. The assembly gap between the retaining wall 53 and the PCB board 6 is 0.3mm to 0.5mm. The height of the retaining wall 53 is consistent with the thickness of the PCB board 6.

[0039] Further, in order to best match the PCB board 6 and the twisted foot 54, the cross-sectional shape of the twisted foot 54 is L-shaped, and the twisted foot 54 includes a root portion 541 and a twisted portion 542, the root portion 541 is connected with the bottom plate 51, and the twisted portion 542 is connected with the root portion 541.

[0040] Further, the width of the root portion 541 of the twisted foot 54 is 4mm to 6mm, so as to ensure that the root portion 541 has sufficient strength.

[0041] Further, the width of the twisted portion 542 of the twisted foot 54 is 4mm to 6mm, so as to ensure that the twisted foot 54 has sufficient length to press on the PCB board 6 after being twisted, and the assembly gap between the twisted portion 542 and the PCB board 6 is 0.3mm to 0.5mm.

[0042] Further, an inner recess 543 is formed at the connection between the inner side of the root portion 541 and the twisted portion 542, the inner recess 543 is smoothly transitioned, so as to avoid stress concentration.

[0043] Furthermore, the depth of the recess 543 is 0.5mm to 1.0mm, and the distance between the deepest point of the recess 543 and the lower surface of the root 541 is 1.5mm to 2.5mm. This is to avoid the problem of the twisting foot 54 breaking easily when twisting because the width at this position is too narrow. The assembly gap between the twisting foot 54 and the PCB board 6 is 0.3mm to 0.5mm.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A low-thickness liquid crystal display screen, characterized in that, It includes: The backlight module has a backlight FPC extending outwards; A display module is disposed above the backlight module, and a display FPC extends outward from the display module. The backlight FPC is bound to the display FPC. A cover plate is disposed above the display module. A black ink layer is disposed on the lower surface of the cover plate, and a screen printing adhesive layer is disposed on the lower surface of the black ink layer. The screen printing adhesive layer is shaped like a square. Both the black ink layer and the screen printing adhesive layer are located in the non-display area. The cover plate is glued and fixed to the display module by the screen printing adhesive layer. The thickness of the screen printing adhesive layer is 0.1mm. Both the black ink layer and the screen printing adhesive layer are formed on the lower surface of the cover plate by screen printing.

2. The low-thickness liquid crystal display screen according to claim 1, characterized in that, The total length of the screen printing adhesive layer is 35mm, the total width of the screen printing adhesive layer is 22mm, the width of the top screen printing adhesive layer is 0.6mm, the width of the left and right screen printing adhesive layers is 0.8mm, and the width of the bottom screen printing adhesive layer is 2.1mm.

3. The low-thickness liquid crystal display screen according to claim 1, characterized in that, The backlight module includes a lower frame, which includes a base plate and sidewalls extending upward from the edge of the base plate. A PCB board is disposed on the lower surface of the base plate. At least one baffle is stamped on the top and bottom of the lower surface of the base plate, and the baffle is perpendicular to the base plate. At least one toggle foot is stamped on the left and right sides of the lower surface of the base plate, and the toggle foot is rotatable. The PCB board is placed within the space defined by the baffle and the toggle foot.

4. The low-thickness liquid crystal display screen according to claim 3, characterized in that, The width of the retaining wall is 8mm to 12mm.

5. The low-thickness liquid crystal display screen according to claim 3, characterized in that, The assembly gap between the retaining wall and the PCB board is 0.3mm to 0.5mm.

6. The low-thickness liquid crystal display screen according to claim 3, characterized in that, The cross-sectional shape of the toggle foot is L-shaped, and the toggle foot includes a root portion connected to the base plate and a toggle portion connected to the root portion.

7. The low-thickness liquid crystal display screen according to claim 6, characterized in that, The root width of the twisted foot is 4mm to 6mm, and the width of the twisted part of the twisted foot is 4mm to 6mm.

8. The low-thickness liquid crystal display screen according to claim 6, characterized in that, An indentation is provided at the connection between the root and the inner side of the twist.

9. The low-thickness liquid crystal display screen according to claim 8, characterized in that, The concave portion has a smooth transition.

10. The low-thickness liquid crystal display screen according to claim 8, characterized in that, The depth of the recess is 0.5 mm to 1.0 mm, and the distance between the deepest point of the recess and the lower surface of the root is 1.5 mm to 2.5 mm.

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