Material-saving liquid crystal display screen

Abstract

The utility model discloses a material-saving liquid crystal display screen, which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid and a cover plate which are sequentially overlapped from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, a driving IC (integrated circuit) and an FPC (flexible printed circuit) are bound on the upper surface of the lower substrate positioned at the step, and the lower surface of the lower substrate is provided with an upper polaroid and a lower polaroid. The FPC comprises a main FPC body and an auxiliary FPC body which are arranged in a forked mode, a main connector is bound to the lower surface of the tail end of the main FPC body, an auxiliary connector is bound to the upper surface of the tail end of the auxiliary FPC body, a stainless steel reinforcing plate is arranged on the upper surface of the tail end of the auxiliary FPC body, the length of the auxiliary FPC body is smaller than that of the main FPC body, and a magnetic traction mylar is fixed to the stainless steel reinforcing plate in an attracted mode. The magnetic traction mylar comprises a PET traction piece and a strong permanent magnetic film arranged on the surface of the PET traction piece, and the strong permanent magnetic film is fixed to the stainless steel reinforcing plate in an adsorption mode. The magnetic traction mylar can be repeatedly utilized, and material loss is reduced.

Description

Technical Field

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

[0002] Nowadays, the display FPC of smart phone screens mostly adopts a dual connector design. This design can connect the related circuits of the two connectors on the mobile phone motherboard together through the FPC, thereby reducing the wiring between the two connectors of the mobile phone motherboard and facilitating the wiring of the entire motherboard.

[0003] When the display module is assembled to the whole machine, the sub-connector needs to be passed through the reserved space in the middle frame of the mobile phone and snapped onto the mainboard of the whole machine. Since the FPC where the sub-connector is located is short, it is not easy to pass the FPC through the space in the middle frame of the mobile phone. Therefore, the traction Mylar is often designed to be glued to the sub-connector reinforcement plate through double-sided adhesive, and the sub-connector is guided through the space in the middle frame through this relatively long Mylar, and then the traction Mylar is torn off.

[0004] Although this structure can effectively pull the FPC where the auxiliary connector is located into the avoidance position of the middle frame, it causes the double-sided adhesive part to remain on the reinforcement plate of the auxiliary connector, thereby causing interference in the structure after assembly; and after the FPC passes through the avoidance position, the traction Mylar is torn off and scrapped. Each display module requires a traction Mylar, resulting in a large consumption of materials. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to design a reusable traction Mylar to reduce the waste of materials.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] In order to solve the above technical problems, the utility model provides a material-saving liquid crystal display screen, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked 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 an FPC, the FPC includes a main FPC and a secondary FPC which are bifurcated, the lower surface of the end of the main FPC is bound with a main connector, the upper surface of the end of the secondary FPC is bound with a secondary connector, the upper surface of the end of the secondary FPC is provided with a stainless steel reinforcement plate, the length of the secondary FPC is shorter than the length of the main FPC, a magnetic traction Mylar is adsorbed and fixed on the stainless steel reinforcement plate, the magnetic traction Mylar includes a PET traction part and a strong permanent magnetic film arranged on the surface of the PET traction part, and the strong permanent magnetic film is adsorbed and fixed to the stainless steel reinforcement plate.

[0008] As a preferred embodiment of the material-saving liquid crystal display provided by the utility model, the FPC includes a substrate layer, a circuit layer arranged on the upper surface of the substrate layer, and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

[0009] As a preferred embodiment of the material-saving liquid crystal display provided by the utility model, the FPC also includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the through-hole is provided with a thermal conductive layer in contact with the circuit layer and the metal heat dissipation layer.

[0010] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, a heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

[0011] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, the structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

[0012] As a preferred embodiment of the material-saving liquid crystal display provided by the utility model, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

[0013] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.

[0014] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, the buffer glue is silicone glue.

[0015] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.

[0016] As a preferred implementation of the material-saving liquid crystal display screen provided by the utility model, the upper surface of the lower substrate and the side surfaces of the protrusions are rough surfaces.

[0017] The utility model has the following beneficial effects:

[0018] Since the surface of the PET traction part of the magnetic traction Mylar is provided with a strong permanent magnetic film, the magnetic traction Mylar and the stainless steel reinforcement plate are adsorbed together by the strong permanent magnetic film; after the magnetic traction Mylar is installed in the whole machine and passed through the middle frame hole of the mobile phone, the magnetic traction Mylar is placed in a special strong magnetic field to temporarily weaken the magnetic offset of the magnetic film on the top of the magnetic traction Mylar, thereby separating the magnetic traction Mylar and the stainless steel reinforcement plate; after the magnetic traction Mylar is separated from the strong magnetic field, the magnetism is restored, and the magnetic traction Mylar can continue to traction and perforate the next product. This avoids the problem of residual glue in the double-sided adhesive solution in the prior art, and the magnetic traction Mylar can also be reused, reducing material loss and saving costs in the mass production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 The present invention is a schematic structural diagram of a material-saving liquid crystal display screen provided by the present invention.

[0021] Figure 2 for Figure 1 Top view of the lower and middle substrate.

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the magnetic traction Mylar

[0023] Figure 4 This is a schematic diagram of the structure of Example 2.

[0024] Figure 5 This is a schematic diagram of the structure of Example 3.

[0025] Description of Figure Numbers:

[0026] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; cover plate 5; FPC 6; main FPC 61; auxiliary FPC 62; auxiliary connector 63; stainless steel reinforcement plate 7; magnetic traction Mylar 8; PET traction part 81; strong permanent magnetic film 82;

[0027] Base material layer 601; circuit layer 602; metal heat dissipation layer 603; through hole 604;

[0028] Protrusion 21; Buffer rubber 22. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] The utility model provides a material-saving liquid crystal display screen, which comprises a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step, the FPC comprises a main FPC and a secondary FPC which are bifurcated, a main connector is bound to the lower surface of the end of the main FPC, a secondary connector is bound to the upper surface of the end of the secondary FPC, a stainless steel reinforcing plate is arranged on the upper surface of the end of the secondary FPC, the length of the secondary FPC is shorter than the length of the main FPC, a magnetic traction Mylar is adsorbed and fixed on the stainless steel reinforcing plate, the magnetic traction Mylar comprises a PET traction part and a strong permanent magnetic film arranged on the surface of the PET traction part, and the strong permanent magnetic film is adsorbed and fixed to the stainless steel reinforcing plate.

[0033] Since the surface of the PET traction part of the magnetic traction Mylar is provided with a strong permanent magnetic film, the magnetic traction Mylar and the stainless steel reinforcement plate are adsorbed together by the strong permanent magnetic film; after the magnetic traction Mylar is installed in the whole machine and passed through the middle frame hole of the mobile phone, the magnetic traction Mylar is placed in a special strong magnetic field to temporarily weaken the magnetic offset of the magnetic film on the top of the magnetic traction Mylar, thereby separating the magnetic traction Mylar and the stainless steel reinforcement plate; after the magnetic traction Mylar is separated from the strong magnetic field, the magnetism is restored, and the magnetic traction Mylar can continue to traction and perforate the next product. This avoids the problem of residual glue in the double-sided adhesive solution in the prior art, and the magnetic traction Mylar can also be reused, reducing material loss and saving costs in the mass production process.

[0034] 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.

[0035] Example 1

[0036] See also Figures 1 to 3, a material-saving liquid crystal display screen provided by the utility model, comprising a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, the lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step, a driver IC and an FPC6 are bound to the upper surface of the lower substrate 2 located at the step, the FPC6 comprises a main FPC61 and a secondary FPC62 which are bifurcated, a main connector is bound to the lower surface of the end of the main FPC61, a secondary connector 63 is bound to the upper surface of the end of the secondary FPC62, a stainless steel reinforcing plate 7 is arranged on the upper surface of the end of the secondary FPC62, the length of the secondary FPC62 is shorter than the length of the main FPC61, a magnetic traction Mylar 8 is adsorbed and fixed on the stainless steel reinforcing plate 7, the magnetic traction Mylar 8 comprises a PET traction part 81 and a strong permanent magnetic film 82, the strong permanent magnetic film 82 is arranged on the upper surface of the PET traction part 81, and the strong permanent magnetic film 82 is adsorbed and fixed to the stainless steel reinforcing plate 7. Since a strong permanent magnetic film 82 is provided on the surface of the PET traction part 81 of the magnetic traction Mylar 8, the magnetic traction Mylar 8 and the stainless steel reinforcement plate 7 are adsorbed together by the strong permanent magnetic film 82; after the magnetic traction Mylar 8 is installed in the whole machine and passes through the middle frame hole of the mobile phone, the magnetic traction Mylar 8 is placed in a special strong magnetic field to temporarily weaken the magnetic offset of the magnetic film on the top of the magnetic traction Mylar 8, thereby separating the magnetic traction Mylar 8 and the stainless steel reinforcement plate 7; after the magnetic traction Mylar 8 is separated from the strong magnetic field, the magnetism is restored, and the magnetic traction Mylar 8 can continue to traction and perforate the next product 604. This avoids the problem of residual glue in the double-sided adhesive solution in the prior art, and the magnetic traction Mylar 8 can be reused, reducing material loss and saving costs in the mass production process.

[0037] Example 2

[0038] See also Figure 4 As a further optimization scheme of Example 1, in this embodiment, the FPC6 includes a substrate layer 601, a circuit layer 602 arranged on the upper surface of the substrate layer 601, and a metal heat dissipation layer 603 arranged on the lower surface of the substrate layer 601. The arrangement method can be that the circuit layer 602 and the metal heat dissipation layer 603 are respectively attached to the substrate layer 601 by double-sided adhesive. Since the thickness of the substrate layer 601 is relatively thin, the heat on the FPC6 can be diffused to the metal heat dissipation layer 603 through the substrate layer 601. The metal heat dissipation layer 603 can effectively increase the heat dissipation area of ​​the FPC6 and play a role in uniform heat dissipation, thereby improving the heat dissipation efficiency of the FPC6. The substrate layer 601 can be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double-sided adhesive is any one of an acrylic adhesive layer or an epoxy resin adhesive layer, and the metal heat dissipation layer 603 can be a copper foil layer.

[0039] Furthermore, the FPC 6 also includes at least one through-hole 604 penetrating the substrate layer 601, the circuit layer 602 and the metal heat dissipation layer 603, and the inner wall of the through-hole 604 is provided with a heat-conducting layer in contact with the circuit layer 602 and the metal heat dissipation layer 603. By utilizing the good thermal conductivity of the through-hole 604, the circuit layer 602 and the metal heat dissipation layer 603 on both sides of the substrate layer 601 can be electrically connected to play a good thermal conductivity function, and the thermal conductive layer can provide a thermal conductive function to achieve a good heat dissipation effect. Among them, the thermal conductive layer can be a copper glue conductive ink layer.

[0040] Furthermore, a heat conductor connected to an external heat-conducting structure is disposed in the through-hole 604. The heat conductor is connected to the external heat-conducting structure from one side of the circuit layer 602 and is also in contact with the heat-conducting layer in the through-hole 604, so that the circuit layer 602 and the metal heat-dissipating layer 603 can be connected to the external heat-conducting structure through the through-hole 604, so that the heat in the FPC 6 can be diffused to the external heat-conducting structure through the heat conductor in the through-hole 604, so as to further improve the heat dissipation efficiency of the FPC 6. Preferably, in order to enable the through-hole 604 to be connected to the external heat-conducting structure, the through-hole 604 is disposed at the edge of the FPC 6.

[0041] Furthermore, the metal heat dissipation layer 603 is a uniform heat dissipation structure, and its structure can be any one of a mesh structure, a strip structure, a wavy structure or a honeycomb structure. Through this uniform heat dissipation structure, the heat dissipation effect can be better improved.

[0042] Example 3

[0043] See also Figure 5 As a further optimization scheme of Example 1, in this embodiment, a protrusion 21 is provided on the edge of the upper surface of the lower substrate 2 extending outward, and a buffer glue 22 is provided on the upper surface of the lower substrate 2 between the protrusion 21 and the upper substrate 3, and the buffer glue 22 abuts against the cover plate 5. Since the edge of the lower substrate 2 is provided with a protrusion 21, the protrusion 21 can limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the LCD screen from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the lower substrate 2 is avoided, and the LCD screen is prevented from displaying abnormally.

[0044] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the upper substrate 3 to further limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control without overflowing glue or incomplete glue dispensing.

[0045] Furthermore, the buffer glue 22 is silicone glue.

[0046] Furthermore, a chamfer is provided between the protrusion 21 and the lower substrate 2 so that the buffer glue 22 can more easily fill the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3. The protrusion 21 with a chamfer can make the buffer glue 22 flow more smoothly into the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3, making it less likely for bubbles to appear.

[0047] Furthermore, the upper surface of the lower substrate 2 and the side surfaces of the protrusions 21 are rough surfaces to improve the fixing effect of the buffer glue 22 .

[0048] Furthermore, the rough surface is a frosted surface or a diamond knurled surface to further improve the fixing effect of the buffer glue 22 .

[0049] 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.

[0050] 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 material-saving LCD display, It is characterized in that The invention discloses a polarizing film comprising a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked 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 an FPC. The FPC comprises a main FPC and a secondary FPC which are bifurcated. The lower surface of the end of the main FPC is bound with a main connector, the upper surface of the end of the secondary FPC is bound with a secondary connector, the upper surface of the end of the secondary FPC is provided with a stainless steel reinforcing plate, the length of the secondary FPC is shorter than that of the main FPC, a magnetic traction Mylar is adsorbed and fixed on the stainless steel reinforcing plate, the magnetic traction Mylar comprises a PET traction part and a strong permanent magnetic film arranged on the surface of the PET traction part, and the strong permanent magnetic film is adsorbed and fixed to the stainless steel reinforcing plate.

2. The material-saving liquid crystal display according to claim 1, It is characterized in that The FPC includes a substrate layer, a circuit layer disposed on an upper surface of the substrate layer, and a metal heat dissipation layer disposed on a lower surface of the substrate layer.

3. The material-saving liquid crystal display according to claim 2, It is characterized in that The FPC further includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and an inner wall of the through-hole is provided with a heat-conducting layer in contact with the circuit layer and the metal heat dissipation layer.

4. The material-saving liquid crystal display according to claim 3, It is characterized in that A heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

5. The material-saving liquid crystal display according to claim 2, It is characterized in that The structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wave structure or a honeycomb structure.

6. The material-saving liquid crystal display according to claim 1, It is characterized in that A protrusion is arranged on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is arranged on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.

7. The material-saving liquid crystal display according to claim 6, It is characterized in that An upper surface of the protrusion is flush with an upper surface of the upper substrate.

8. The material-saving liquid crystal display according to claim 6, It is characterized in that The buffer glue is silicone glue.

9. The material-saving liquid crystal display according to claim 6, It is characterized in that A rounded corner is arranged between the protrusion and the lower substrate.

10. The material-saving liquid crystal display according to claim 6, It is characterized in that The upper surface of the lower substrate and the side surfaces of the protrusion are rough surfaces.

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