AMOLED display screen capable of improving FPC bending alignment efficiency

Abstract

The utility model discloses an AMOLED (Active Matrix / Organic Light Emitting Diode) display screen capable of improving FPC (Flexible Printed Circuit) bending alignment efficiency, which comprises an upper substrate, a lower substrate and foam, the lower substrate is arranged below the upper substrate, the lower substrate is longer than the upper substrate and extends outwards to form a step, a driving IC (Integrated Circuit) and an FPC are bound on the upper surface of the lower substrate positioned at the step, and the foam is arranged on the upper surface of the lower substrate. The foam is arranged on the lower surface of the lower substrate, a protective film is arranged on the lower surface of the foam, the protective film comprises a first protective film and a second protective film which abut against each other, and a line segment at the abutting position of the first protective film and the second protective film is an alignment line after the FPC is bent. The protection and dust prevention effects can be achieved, meanwhile, the first protection film can be torn off when the FPC is aligned, then the cutting edge of the second protection film is used as an alignment line for alignment when the FPC is bent, the FPC is pasted and fixed after alignment is completed, and finally assembly can be completed by removing the second protection film.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to an AMOLED display screen for improving the bending and alignment efficiency of FPC. Background Art

[0002] In current AMOLED liquid crystal display products, since there is a little light transmission at the bottom of the AMOLED liquid crystal display, a black foam is added at the bottom of the AMOLED liquid crystal display. At the same time, in order to avoid damaging the foam during the assembly process, the foam is generally protected by a protective film. The FPC of the AMOLED module needs to be bent to the back for pasting. Since there is no alignment line reference, generally, the protective film of the foam is first torn off, and then the AMOLED liquid crystal display is placed in an alignment jig to assist in bending and aligning with the alignment jig before pasting. This kind of structure has a complex bending and alignment process and slow production efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is how to simplify the bending and alignment process, improve the bending and alignment efficiency of FPC, and thus improve the production efficiency.

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

[0005] To solve the above technical problem, the utility model provides an AMOLED display screen for improving the bending and alignment efficiency of FPC, which includes an upper substrate, a lower substrate, and a foam. The lower substrate is arranged below the upper substrate. The lower substrate is longer than the upper substrate and extends outwards to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The foam is arranged on the lower surface of the lower substrate. A protective film is arranged on the lower surface of the foam. The protective film includes a first protective film and a second protective film that are in contact with each other. The line segment at the contact of the first protective film and the second protective film is the alignment line after the FPC is bent.

[0006] As a preferred embodiment of the AMOLED display screen for improving the bending and alignment efficiency of FPC provided by the utility model, a first film tearing handle is arranged on the first protective film, and a second film tearing handle is arranged on the second protective film.

[0007] As a preferred embodiment of the AMOLED display screen for improving the bending and alignment efficiency of FPC provided by the utility model, the length of the first film tearing handle is longer than the length of the second film tearing handle.

[0008] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, the colors of the first protective film and the second protective film are different.

[0009] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, the color of the first protective film is red, and the color of the second protective film is yellow.

[0010] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, the color of the foam is black.

[0011] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, pads are arranged on the upper surface of the FPC, and both the upper surface and the lower surface of the FPC are covered with EMI shielding films, and an avoidance position is provided at the pads of the EMI shielding films.

[0012] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, a PET film is arranged between the FPC and the EMI shielding film, and the edge of the PET film near the avoidance position extends beyond the edge of the EMI shielding film.

[0013] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, double-sided adhesives are provided at the bottom of the PET film.

[0014] As a preferred embodiment of the AMOLED display screen for improving the bending alignment efficiency of the FPC provided by the present utility model, insulating glue is arranged at the edge of the pad, and the insulating glue covers the avoidance position.

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

[0016] Since the protective film on the lower surface of the foam includes a first protective film and a second protective film that are in contact with each other, and the line segment at the contact position of the first protective film and the second protective film is the alignment line after the FPC is bent, it can play a role in protection and dust prevention while, when aligning the FPC, first tear off the first protective film, and then use the cutting edge of the second protective film as the alignment line for alignment when the FPC is bent. After the alignment is completed, paste and fix the FPC, and finally remove the second protective film to complete the assembly. This structure does not require the use of alignment jigs, thus simplifying the bending alignment process, improving the bending alignment efficiency of the FPC, and further improving the production efficiency. Description of the Drawings

[0017] To more clearly illustrate the solutions in this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of an AMOLED display screen that improves the bending alignment efficiency of an FPC provided by the present utility model.

[0019] Figure 2 For Figure 1 a schematic structural diagram of the protective film in

[0020] Figure 3 For Figure 1 an improved schematic structural diagram of the FPC in

[0021] Figure 4 For Figure 3 a schematic laminated structure diagram of

[0022] Explanation of the reference numerals in the drawings:

[0023] Upper substrate 1; lower substrate 2; foam 3; driving IC 4; FPC 5; protective film 6; first protective film 61; second protective film 62;

[0024] First film tearing handle 63; second film tearing handle 64; pad 7; EMI shielding film 8; PET film 9. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0027] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0028] The present utility model provides an AMOLED display screen for improving the bending alignment efficiency of an FPC, which includes an upper substrate, a lower substrate, and a foam. The lower substrate is disposed below the upper substrate. The lower substrate is longer than the upper substrate and extends outward to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The foam is disposed on the lower surface of the lower substrate, and a protective film is disposed on the lower surface of the foam. The protective film includes a first protective film and a second protective film that are in contact with each other. The line segment at the contact of the first protective film and the second protective film is the alignment line after the FPC is bent.

[0029] Since the protective film on the lower surface of the foam includes a first protective film and a second protective film that are in contact with each other, and the line segment at the contact of the first protective film and the second protective film is the alignment line after the FPC is bent, it can play a role in protection and dust prevention while, when aligning the FPC, first tear off the first protective film, and then use the cutting edge of the second protective film as the alignment line for alignment when the FPC is bent. After the alignment is completed, paste and fix the FPC, and finally remove the second protective film to complete the assembly. This structure does not require the use of an alignment fixture, thereby simplifying the bending alignment process, improving the bending alignment efficiency of the FPC, and further improving the production efficiency.

[0030] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings. The present utility model will be described in detail below in conjunction with the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0031] Embodiment 1, please refer to Figure 1 and Figure 2 , which is an AMOLED display screen for improving the bending alignment efficiency of FPC provided by the present utility model. It includes an upper substrate 1, a lower substrate 2 and a foam 3. The lower substrate 2 is arranged below the upper substrate 1. The lower substrate 2 is longer than the upper substrate 1 and extends outwards to form a step. A driving IC 4 and an FPC 5 are bonded to the upper surface of the lower substrate 2 at the step. The foam 3 is arranged on the lower surface of the lower substrate 2, and a protective film 6 is arranged on the lower surface of the foam 3. The protective film 6 includes a first protective film 61 and a second protective film 62 that are in contact with each other. The line segment at the contact of the first protective film 61 and the second protective film 62 is the alignment line after the FPC 5 is bent. Since the protective film 6 on the lower surface of the foam 3 includes a first protective film 61 and a second protective film 62 that are in contact with each other, and the line segment at the contact of the first protective film 61 and the second protective film 62 is the alignment line after the FPC 5 is bent, it can play a role in protection and dust prevention while, when aligning the FPC 5, the first protective film 61 can be torn off first, and then the cutting edge of the second protective film 62 can be used as the alignment line for alignment when the FPC 5 is bent. After the alignment is completed, the FPC 5 is pasted and fixed, and finally the second protective film 62 is removed to complete the assembly. This structure does not require the use of alignment jigs, thereby simplifying the bending alignment process, improving the bending alignment efficiency of the FPC 5, and further improving the production efficiency.

[0032] The first protective film 61 and the second protective film 62 can be formed by cutting after being integrally formed, or can be provided with cut-off lines arranged at intervals.

[0033] Furthermore, a first film tearing handle 63 is arranged on the first protective film 61, and a second film tearing handle 64 is arranged on the second protective film 62. The first protective film 61 and the second protective film 62 can be torn off by using the film tearing handles.

[0034] Further, the length of the first film - tearing handle 63 is longer than that of the second film - tearing handle 64, and the colors of the first protective film 61 and the second protective film 62 are different. The color of the first protective film 61 is red, and the color of the second protective film 62 is yellow. The first protective film 61 and the second protective film 62 can be distinguished by the length of the film - tearing handle and the color of the protective film 6, so that it is convenient for the staff to judge which protective film 6 to tear off first during alignment, avoiding tearing the wrong protective film 6.

[0035] Further, the color of the foam 3 is black to improve the light - shielding effect.

[0036] Example 2, please refer to Figure 1 , as a further optimized solution of Example 1, in this embodiment, pads 7 are provided on the upper surface of the FPC 5, and both the upper surface and the lower surface of the FPC 5 are covered with EMI shielding films 8. The EMI shielding film 8 is provided with an avoidance position at the pad 7. Since EMI shielding films 8 are provided on both the upper and lower surfaces of the FPC 5, the electromagnetic shielding ability of the FPC 5 can be greatly improved, the stability of signal transmission can be improved, various functional problems and problems with poor display effects can be avoided, and the competitiveness of the product can be improved.

[0037] Further, the edge of the EMI shielding film 8 at the avoidance position is more than 0.5 mm away from the edge of the pad 7 to prevent the edge of the EMI shielding film 8 from contacting the pad 7 and causing an open circuit.

[0038] Further, a PET film 9 is provided between the FPC 5 and the EMI shielding film 8, and the edge of the PET film 9 near the avoidance position extends beyond the edge of the EMI shielding film 8. By extending the edge of the PET film 9 at the position near the pad 7, a certain distance is opened between the edge of the PET film 9 and the edge of the EMI shielding film 8, so that even if there is a certain operation error during pasting by the staff, it can be ensured that the edge of the EMI shielding film 8 does not touch the edge of the pad 7, thereby insulating the edge of the EMI shielding film 8 and preventing the occurrence of a short - circuit problem caused by the edge of the EMI shielding film 8 touching the pad 7, improving the pasting efficiency and the production yield.

[0039] Further, the edge of the PET film 9 near the avoidance position extends beyond the edge of the EMI shielding film 8 by more than 0.5 mm. To ensure that the edge of the EMI shielding film 8 does not touch the pad 7, thereby insulating the edge of the EMI shielding film 8 and preventing the occurrence of a short - circuit problem caused by the edge of the EMI shielding film 8 touching the pad 7, improving the pasting efficiency and the production yield.

[0040] Further, the bottom of the PET film 9 is provided with double - sided tape or the bottom of the PET film 9 is coated with glue. Since some PET films 9 do not have adhesiveness or have insufficient adhesiveness, the bottom of the PET film 9 is provided with double - sided tape or coated with glue, so that the PET film 9 can adhere to the FPC 5.

[0041] Further, an insulating adhesive is provided at the edge of the pad 7, and the insulating adhesive covers the avoidance position to protect the edge of the pad 7.

[0042] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The accompanying drawings show the preferred embodiments of the present application, but 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 disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields shall be within the scope of the patent protection of the present application by the same token.

Claims

1. An AMOLED display screen for improving the bending alignment efficiency of an FPC, characterized in that, It includes an upper substrate, a lower substrate and a foam. The lower substrate is disposed below the upper substrate. The lower substrate is longer than the upper substrate and extends outward to form a step. A driving IC and an FPC are bonded to the upper surface of the lower substrate at the step. The foam is disposed on the lower surface of the lower substrate. A protective film is disposed on the lower surface of the foam. The protective film includes a first protective film and a second protective film that are in abutment with each other. The line segment at the abutment of the first protective film and the second protective film is the alignment line after the FPC is bent.

2. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 1, wherein A first film-removing handle is disposed on the first protective film, and a second film-removing handle is disposed on the second protective film.

3. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 2, wherein The length of the first film-removing handle is longer than the length of the second film-removing handle.

4. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 1, wherein The first protective film and the second protective film have different colors.

5. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 4, characterized in that, The color of the first protective film is red, and the color of the second protective film is yellow.

6. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 1, wherein, The color of the foam is black.

7. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 1, wherein Solder pads are disposed on the upper surface of the FPC. EMI shielding films cover both the upper surface and the lower surface of the FPC. The EMI shielding film is provided with an avoidance position at the solder pads.

8. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 7, wherein, A PET film is disposed between the FPC and the EMI shielding film. The edge of the PET film near the avoidance position extends beyond the edge of the EMI shielding film.

9. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 8, wherein Double-sided adhesives are provided at the bottom of the PET film.

10. The AMOLED display screen for improving the bending alignment efficiency of the FPC according to claim 7, characterized in that, Insulating glue is disposed at the edge of the solder pads, and the insulating glue covers the avoidance position.

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