Backlight module, display module and electronic equipment

Abstract

The utility model discloses a backlight module, a display module and electronic equipment, and the backlight module comprises an iron frame which is provided with an iron frame opening position; the opening position of the iron stand is notch-shaped at the edge of the iron stand; an FPC interface of the FPC passes through the opening position of the iron stand and is combined with the back surface of the iron stand; a reinforcing plate is arranged at the joint of the FPC and the opening position of the iron stand; the reinforcing plate is used for isolating the FPC from being attached to the opening position of the iron stand. The reinforcing plate is arranged at the position, corresponding to the opening position of the iron stand, of the FPC, the FPC is separated from the opening position of the iron stand, and damage of the opening position of the iron stand to the FPC is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a backlight module, a display module and an electronic device. Background Art

[0002] In the existing backlight module, in order to improve the heat dissipation effect of high-power LEDs, the FPC usually needs to be attached to the iron frame, so that the FPC lighting interface needs to pass through the opening of the iron frame and fit with the back of the iron frame and then be connected to the module. As Figure 1 shown, the FPC interface 109 passes through the opening of the iron frame and then is connected to the module. However, since the material of the iron frame is metal, burrs and other situations are inevitable at the opening of the iron frame, and the FPC 104 inevitably has the phenomenon of being scratched by the opening of the iron frame. If the FPC 104 is damaged, it will cause an open circuit, which will affect the backlight brightness or directly cause the backlight not to light up, and even affect the display function of the display module.

[0003] How to avoid the above phenomena has become an urgent technical problem in the industry. Summary of the Invention

[0004] In order to at least solve the above technical problems, the purpose of the utility model is to provide a backlight module, which isolates the FPC from the opening of the iron frame by arranging a reinforcing plate at the position of the FPC corresponding to the opening of the iron frame, so as to avoid the damage of the FPC by the opening of the iron frame.

[0005] To achieve the above purpose, the backlight module provided by this application includes:

[0006] An iron frame with an opening;

[0007] The opening of the iron frame presents a notch at the edge of the iron frame;

[0008] The FPC interface of the FPC passes through the opening of the iron frame and is combined on the back of the iron frame;

[0009] A reinforcing plate is provided at the joint of the FPC and the opening of the iron frame;

[0010] The reinforcing plate is used to isolate the joint of the FPC and the opening of the iron frame.

[0011] Further, the reinforcing plate is a PI reinforcing plate.

[0012] Further, the thickness of the PI reinforcing plate is 0.2 mm.

[0013] Further, it further includes:

[0014] A single-sided adhesive limit positioning, which is arranged on the back of the iron frame;

[0015] The single-sided adhesive limit positioning surrounds the opening position of the iron frame.

[0016] Furthermore, it also includes:

[0017] Single-sided adhesive, which is adhesively bonded to the single-sided adhesive limit positioning;

[0018] The single-sided adhesive is used to fix the FPC on the back of the iron frame.

[0019] Furthermore, the single-sided adhesive covers the opening position of the iron frame.

[0020] Furthermore, the single-sided adhesive covers the PI reinforcement plate.

[0021] Furthermore, it also includes:

[0022] FPC limit positioning, which is arranged on the back of the iron frame;

[0023] The FPC limit positioning is used to limit the position of the FPC on the back of the iron frame.

[0024] To achieve the above object, the present application also provides a display module, including: the above backlight module.

[0025] To achieve the above object, the present application also provides an electronic device, including: the above backlight module.

[0026] The backlight module of the embodiment of the present application includes: an iron frame, the iron frame is provided with an iron frame opening position; the iron frame opening position presents a notch shape at the edge of the iron frame; the FPC interface of the FPC passes through the iron frame opening position and is combined on the back of the iron frame; a reinforcement plate is provided at the joint of the FPC and the iron frame opening position; the reinforcement plate is used to isolate the joint of the FPC and the iron frame opening position. By arranging a reinforcement plate at the position of the FPC corresponding to the iron frame opening position, the FPC is separated from the iron frame opening position, avoiding damage to the FPC by the iron frame opening position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and together with the embodiments of the present application, are used to explain the present application, and do not constitute a limitation to the present application. In the drawings:

[0028] Figure 1 is a schematic structural diagram of an existing backlight module;

[0029] Figure 2 is a schematic structural diagram of the backlight module of the embodiment of the present application.

[0030] Description of the reference numerals:

[0031] 101 - Glue rack; 102 - Iron rack; 103 - Opening position of the iron rack; 104 - FPC; 105 - Reinforcing plate; 106 - Single - sided adhesion; 107 - Limited positioning of single - sided adhesion; 108 - Limited positioning of FPC; 109 - FPC interface. Detailed implementation mode

[0032] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not used to limit the protection scope of the present application.

[0033] It should be understood that the various steps recorded in the method implementation mode of the present application can be executed in different orders and / or executed in parallel. In addition, the method implementation mode may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this regard.

[0034] The term "including" and its variants used herein are open - ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0035] It should be noted that the modifications of "one" and "multiple" mentioned in the present application are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly stated otherwise in the context, it should be understood as "one or more". "Multiple" should be understood as two or more.

[0036] The backlight module of the embodiment of the present application includes:

[0037] An iron rack, and the iron rack is provided with an opening position of the iron rack;

[0038] The opening position of the iron rack presents a notch shape at the edge of the iron rack;

[0039] The FPC interface of the FPC passes through the opening position of the iron rack and is combined on the back of the iron rack;

[0040] A reinforcing plate is provided at the joint of the FPC and the opening position of the iron rack;

[0041] The reinforcing plate is used to isolate the joint of the FPC and the opening position of the iron rack.

[0042] Embodiment 1

[0043] Figure 2It is a schematic structural diagram of the backlight module according to an embodiment of the present application. The following will be combined with Figure 2 to describe the backlight module according to the embodiment of the present application in detail.

[0044] In some exemplary embodiments, the backlight module according to the embodiment of the present application includes an iron frame 102.

[0045] In some exemplary embodiments, the iron frame 102 is provided with an iron frame opening 103.

[0046] In some exemplary embodiments, the iron frame opening 103 presents a notch shape at the edge of the iron frame 102, such as Figure 1 and Figure 2 shown.

[0047] In some exemplary embodiments, the backlight module according to the embodiment of the present application further includes an FPC 104.

[0048] In some exemplary embodiments, an FPC (Flexible Printed Circuit) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material.

[0049] In some exemplary embodiments, the FPC has the characteristics of high wiring density, light weight, thin thickness, and good bendability.

[0050] In some exemplary embodiments, the FPC 104 is provided with an FPC interface 109.

[0051] In some exemplary embodiments, the FPC interface 109 of the FPC 104 passes through the iron frame opening 103 and is combined on the back of the iron frame 102.

[0052] In some exemplary embodiments, a reinforcing plate 105 is provided at the joint of the FPC 104 and the iron frame opening 103; it can be understood that the reinforcing plate 105 is provided on the side of the FPC 104 facing the iron frame opening 103.

[0053] In some exemplary embodiments, the reinforcing plate 105 is used to isolate the joint of the FPC 104 and the iron frame opening 103.

[0054] In some exemplary embodiments, as needed, the FPC interface 109 passes through the iron frame opening 103 and is combined on the back of the iron frame 102 through a thermal conductive adhesive.

[0055] In some exemplary embodiments, the reinforcing plate 105 can be disposed at a corresponding position on the FPC 104 as needed. When the FPC interface 109 passes through the opening position 103 of the iron frame and is attached to the back of the iron frame 102, the reinforcing plate 105 is exactly attached to the opening position 103 of the iron frame.

[0056] In some exemplary embodiments, the reinforcing plate 105 is a PI reinforcing plate.

[0057] In some exemplary embodiments, the thickness of the PI reinforcing plate is 0.2 mm.

[0058] In some exemplary embodiments, the width dimension of the PI reinforcing plate can be the same as the width dimension of the FPC 104, can also be slightly smaller than the width dimension of the FPC 104, and of course, the width dimension of the PI reinforcing plate can also be slightly larger than the width dimension of the FPC 104; as long as the width dimension of the PI reinforcing plate can be accommodated by the opening position 103 of the iron frame.

[0059] In some exemplary embodiments, the backlight module of the embodiment of the present application further includes: a single-sided adhesive limit positioning 107.

[0060] In some exemplary embodiments, the single-sided adhesive limit positioning 107 is disposed on the back of the iron frame 102.

[0061] In some exemplary embodiments, the single-sided adhesive limit positioning 107 surrounds the opening position 103 of the iron frame.

[0062] In some exemplary embodiments, the single-sided adhesive limit positioning 107 is used to attach the single-sided adhesive 106.

[0063] In some exemplary embodiments, the single-sided adhesive 106 is used to fix the FPC 104 to the back of the iron frame 102, that is, when the FPC 104 is attached to the back of the iron frame 102, the single-sided adhesive 106 fixes the FPC 104 again at the single-sided adhesive limit positioning 107.

[0064] In some exemplary embodiments, the single-sided adhesive 106 covers the opening position 103 of the iron frame.

[0065] In some exemplary embodiments, the single-sided adhesive 106 covers the PI reinforcing plate.

[0066] In some exemplary embodiments, the backlight module of the embodiment of the present application further includes: an FPC limit positioning 108.

[0067] In some exemplary embodiments, the FPC limit positioning 108 is disposed on the back of the iron frame 102.

[0068] In some exemplary embodiments, the FPC limiting position 108 is used to limit the position of the FPC 104 on the back of the iron frame 102.

[0069] In some exemplary embodiments, as needed, after the FPC interface 109 is docked with the module, it can also be fixed on the back of the iron frame 102 by the single-sided adhesive 106.

[0070] In some exemplary embodiments, a rubber frame 101 is further included around the iron frame 102, that is, the iron frame opening 103 is in a notch shape between the iron frame 102 and the rubber frame 101, and the FPC interface 109 passes through the iron frame opening 103 between the iron frame 102 and the rubber frame 101 and then adheres to the back of the iron frame 102.

[0071] In some exemplary embodiments, as needed, the FPC 104 further includes a component area.

[0072] In some exemplary embodiments, the component area is used to arrange components.

[0073] In some exemplary embodiments, the components include capacitors and / or resistors and / or diodes.

[0074] In some exemplary embodiments, the capacitor plays a role in voltage stabilization or filtering.

[0075] In some exemplary embodiments, the resistor plays a role in pull-up or electrostatic protection.

[0076] In some exemplary embodiments, the diode plays a role in electrostatic protection or preventing voltage backflow.

[0077] Embodiment 2

[0078] Embodiment 2 is a display module, including the backlight module of the above embodiment.

[0079] Embodiment 3

[0080] Embodiment 3 is an electronic device, including the backlight module of the above embodiment.

[0081] In some exemplary embodiments, the electronic device of the embodiment of the present application is, for example, a display screen, such as a liquid crystal display screen.

[0082] Although the embodiments disclosed by the present utility model are as above, the content is only for facilitating the understanding of the present utility model and is not intended to limit the present utility model. Any person skilled in the art within the field to which the present utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be subject to the scope defined by the appended claims.

Claims

1. A backlight module, characterized in that: include: An iron frame, wherein the iron frame is provided with an iron frame opening; The opening of the iron frame is in the shape of a notch at the edge of the iron frame; The FPC interface of the FPC passes through the opening of the iron frame and is combined on the back side of the iron frame; A reinforcing plate is provided at the joint between the FPC and the opening of the iron frame; The reinforcing plate is used to isolate the FPC from the fitting of the opening of the iron frame.

2. The backlight module according to claim 1, characterized in that: The reinforcing plate is a PI reinforcing plate.

3. The backlight module according to claim 2, characterized in that: The thickness of the PI reinforcement plate is 0.2 mm.

4. The backlight module according to claim 3, characterized in that: Also included are: A single-sided adhesive stopper, the single-sided adhesive stopper being arranged on the back side of the iron frame; The single-sided adhesive stopper surrounds the opening of the iron frame.

5. The backlight module according to claim 4, characterized in that: Also included are: Single-sided adhesive, the single-sided adhesive is positioned on the single-sided adhesive limiter; The single-sided adhesive is used to fix the FPC on the back side of the iron frame.

6. The backlight module according to claim 5, characterized in that: The single-sided adhesive covers the opening of the iron frame.

7. The backlight module according to claim 6, characterized in that: The single-sided adhesive covers the PI reinforcing plate.

8. The backlight module according to claim 7, characterized in that: Also included are: An FPC limiting position, wherein the FPC limiting position is arranged on the back side of the iron frame; The FPC limiting position is used to limit the position of the FPC on the back side of the iron frame.

9. A display module, characterized in that: A backlight module comprising any one of claims 1-8.

10. An electronic device, characterized in that: A backlight module comprising any one of claims 1-8.

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