Backlight module, mobile communication terminal and electronic equipment

Abstract

The utility model discloses a backlight module, a mobile communication terminal and electronic equipment, and the backlight module comprises a backlight iron frame; the reflector plate is attached to the inner side of the backlight iron frame; the light guide plate is arranged on one side, back to the backlight iron frame, of the reflector plate; a rubber shell is arranged on the edge of the inner side of the backlight iron frame; one side, back to the backlight iron frame, of the rubber shell is provided with an FPC; shading glue is also arranged on one side, back to the glue shell, of the FPC; the shading glue is provided with an extension part, and the extension part is connected with the side, back to the reflector plate, of the backlight iron frame. The extension part is arranged on the shading glue, and the extension part is connected to the side, back to the reflector plate, of the backlight iron frame, so that the shading glue is bonded more firmly.

Description

Technical Field

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

[0002] In order to pursue narrow borders in existing mobile terminal devices, the bonding space in the structure of the backlight module will also be reduced, and the light-shielding adhesive is only flatly attached to the FPC. During the transportation or reliability test of the product, the phenomenon of vibration and detachment will occur. The detachment of the light-shielding adhesive will cause foreign objects to enter the product interior, and there will also be problems such as the displacement or even detachment of some optical films, thereby affecting the product quality.

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

[0004] In order to solve at least the above technical problems, the purpose of the utility model is to provide a backlight module. By providing an extension part on the light-shielding adhesive and connecting the extension part to the side of the backlight iron frame facing away from the reflector, the light-shielding adhesive is bonded more firmly.

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

[0006] A backlight iron frame;

[0007] A reflector, which is attached to the inner side of the backlight iron frame;

[0008] A light guide plate, which is disposed on the side of the reflector facing away from the backlight iron frame;

[0009] A glue shell is provided at the inner edge of the backlight iron frame;

[0010] An FPC is provided on the side of the glue shell facing away from the backlight iron frame;

[0011] A light-shielding adhesive is further provided on the side of the FPC facing away from the glue shell;

[0012] The light-shielding adhesive is provided with an extension part, and the extension part is connected to the side of the backlight iron frame facing away from the reflector.

[0013] Further, the extension part is connected to the glue shell.

[0014] Further, a double-sided adhesive is provided between the FPC and the glue shell.

[0015] Further, an LED lamp is provided on the side of the FPC facing the reflector;

[0016] The LED lamp is disposed on the side edge of the light guide plate.

[0017] Further, a diffusion film is provided on the side of the light guide plate facing away from the reflector.

[0018] Further, a lower brightness enhancement film is provided on one side of the diffusion film facing away from the light guide plate.

[0019] Further, an upper brightness enhancement film is provided on one side of the lower brightness enhancement film facing away from the diffusion film.

[0020] Further, the size of the diffusion film is larger than that of the lower brightness enhancement film;

[0021] Diffusion tapes are provided at the places where the diffusion film is larger than the lower brightness enhancement film.

[0022] To achieve the above object, the present application further provides a mobile communication terminal, including the above backlight module.

[0023] To achieve the above object, the present application further provides an electronic device, including the above backlight module.

[0024] The backlight module according to the embodiment of the present application includes: a backlight iron frame; a reflective sheet, which is attached to the inner side of the backlight iron frame; a light guide plate, which is disposed on the side of the reflective sheet facing away from the backlight iron frame; a rubber shell is provided at the inner edge of the backlight iron frame; an FPC is provided on the side of the rubber shell facing away from the backlight iron frame; a light-shielding adhesive is further provided on the side of the FPC facing away from the rubber shell; the light-shielding adhesive is provided with an extension part, and the extension part is connected to the side of the backlight iron frame facing away from the reflective sheet. By providing the extension part on the light-shielding adhesive and connecting the extension part to the side of the backlight iron frame facing away from the reflective sheet, the light-shielding adhesive is bonded more firmly; when the existing light-shielding adhesive is only attached to the FPC, if the light-shielding adhesive falls off, foreign objects will enter the product interior, and some optical film materials will even shift or fall off, thus affecting the product quality. Description of the Drawings

[0025] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not constitute a limitation to the present application. In the drawings:

[0026] Figure 1 It is a schematic structural diagram of the backlight module according to the embodiment of the present application.

[0027] Description of the Reference Numerals in the Drawings:

[0028] 101 - Backlight iron frame; 102 - Reflective sheet; 103 - Light guide plate; 104 - Diffusion film; 105 - Lower brightness enhancement film; 106 - Upper brightness enhancement film; 107 - Diffusion tape; 108 - Double-sided adhesive; 109 - Rubber shell; 110 - FPC; 111 - Light-shielding adhesive; 112 - Protective film; 113 - LED lamp; 114 - Extension part. Detailed Embodiments

[0029] 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.

[0030] It should be understood that the various steps recited in the method embodiments of the present application can be executed in a different order and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this regard.

[0031] As used herein, the term "comprising" and its variations are open-ended, that is, "including but not limited to". The term "based on" means "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.

[0032] 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 otherwise clearly specified in the context, it should be understood as "one or more". "Multiple" should be understood as two or more.

[0033] The backlight module of the embodiments of the present application includes:

[0034] Backlight iron frame;

[0035] A reflective sheet, which is attached to the inner side of the backlight iron frame;

[0036] A light guide plate, which is disposed on the side of the reflective sheet facing away from the backlight iron frame;

[0037] A glue shell is provided at the inner edge of the backlight iron frame;

[0038] An FPC is provided on the side of the glue shell facing away from the backlight iron frame;

[0039] A light-shielding glue is further provided on the side of the FPC facing away from the glue shell;

[0040] The light-shielding glue is provided with an extension part, and the extension part is connected to the side of the backlight iron frame facing away from the reflective sheet.

[0041] Embodiment 1

[0042] Figure 1 is a schematic structural diagram of the backlight module of the embodiments of the present application. The following will be combined with Figure 1, a detailed description of the backlight module structure according to the embodiments of the present application will be given.

[0043] The backlight module according to the embodiments of the present application includes: a backlight iron frame 101, and the backlight iron frame 101 is also called a backlight iron bracket.

[0044] In some exemplary embodiments, the backlight module according to the embodiments of the present application further includes: a reflective sheet 102.

[0045] In some exemplary embodiments, the reflective sheet 102 is attached to the inner side of the backlight iron frame 101.

[0046] In some exemplary embodiments, the backlight module according to the embodiments of the present application further includes: a light guide plate 103.

[0047] In some exemplary embodiments, the light guide plate 103 is disposed on the side of the reflective sheet 102 facing away from the backlight iron frame 101.

[0048] In some exemplary embodiments, a plastic shell 109 is provided at the inner edge of the backlight iron frame 101.

[0049] In some exemplary embodiments, an FPC 110 is provided on the side of the plastic shell 109 facing away from the backlight iron frame 101.

[0050] In some exemplary embodiments, a light-shielding adhesive 111 is further provided on the side of the FPC 110 facing away from the plastic shell 109.

[0051] In some exemplary embodiments, the light-shielding adhesive 111 is provided with an extension portion 114.

[0052] In some exemplary embodiments, the extension portion 114 is connected to the side of the backlight iron frame 101 facing away from the reflective sheet 102.

[0053] In some exemplary embodiments, the extension portion 114 is connected to the plastic shell 109.

[0054] In some exemplary embodiments, a double-sided adhesive 108 is provided between the FPC 110 and the plastic shell 109.

[0055] In some exemplary embodiments, an LED lamp 113 is provided on the side of the FPC 110 facing the reflective sheet 102.

[0056] In some exemplary embodiments, the LED lamp 113 is disposed on the side edge of the light guide plate 103.

[0057] In some exemplary embodiments, a diffusion film 104 is provided on the side of the light guide plate 103 facing away from the reflective sheet 102.

[0058] In some exemplary embodiments, a lower brightness enhancement film 105 is provided on the side of the diffusion film 104 facing away from the light guide plate 103.

[0059] In some exemplary embodiments, an upper brightness enhancement film 106 is provided on the side of the lower brightness enhancement film 105 facing away from the diffusion film 104, that is, the upper brightness enhancement film 106 is attached to the upper part of the lower brightness enhancement film 105.

[0060] In some exemplary embodiments, the size of the diffusion film 104 is larger than that of the lower brightness enhancement film 105, and a diffusion tape 107 is provided at the place where the diffusion film 104 is larger than the lower brightness enhancement film 105, as Figure 1 shown.

[0061] In some exemplary embodiments, a protective film 112 is provided on the side of the light-shielding adhesive 111 facing away from the FPC 110.

[0062] In some exemplary embodiments, the FPC 110 is also connected to the light guide plate 103 through a double-sided adhesive 108.

[0063] 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 substrate.

[0064] In some exemplary embodiments, the FPC has the characteristics of high wiring density, light weight, thin thickness, and good bendability.

[0065] In some exemplary embodiments, the FPC 110 may optionally further include a component area.

[0066] In some exemplary embodiments, the component area is used to arrange components.

[0067] In some exemplary embodiments, the components include capacitors and / or resistors and / or diodes.

[0068] In some exemplary embodiments, the capacitor plays a role in voltage stabilization or filtering.

[0069] In some exemplary embodiments, the resistor plays a role in pull-up or electrostatic protection.

[0070] In some exemplary embodiments, the diode plays a role in electrostatic protection or preventing voltage backflow.

[0071] Example 2

[0072] Example 2 is a mobile communication terminal, including the backlight module of the above example.

[0073] In some exemplary embodiments, the mobile communication terminal of the embodiments of the present application is, for example, a smart phone.

[0074] Embodiment 3

[0075] Embodiment 3 is an electronic device including the backlight module of the above embodiment.

[0076] Although the disclosed embodiments of the present utility model are as above, the content is only the embodiments adopted for facilitating the understanding of the present utility model, and is not used to limit the present utility model. Any person skilled in the art within the field of the present utility model can 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: Backlit iron frame; A reflective sheet, the reflective sheet being attached to the inner side of the backlight iron frame; A light guide plate, arranged on a side of the reflective sheet facing away from the backlight iron frame; A plastic shell is provided on the inner edge of the backlight iron frame; An FPC is arranged on the side of the plastic shell facing away from the backlight iron frame; The side of the FPC facing away from the plastic shell is also provided with light-shielding glue; The light-shielding adhesive is provided with an extension portion, and the extension portion is connected to a side of the backlight iron frame that faces away from the reflective sheet.

2. The backlight module according to claim 1, characterized in that: The extension part is connected to the plastic shell.

3. The backlight module according to claim 2, characterized in that: Double-sided adhesive tape is provided between the FPC and the adhesive shell.

4. The backlight module according to claim 3, characterized in that: An LED light is provided on one side of the FPC facing the reflector; The LED lamp is arranged on the side of the light guide plate.

5. The backlight module according to claim 4, characterized in that: A diffusion film is provided on a side of the light guide plate facing away from the reflective sheet.

6. The backlight module according to claim 5, characterized in that: A lower brightness enhancement film is provided on the side of the diffusion film facing away from the light guide plate.

7. The backlight module according to claim 6, characterized in that: An upper brightness enhancement film is arranged on a side of the lower brightness enhancement film facing away from the diffusion film.

8. The backlight module according to claim 7, characterized in that: The size of the diffusion film is greater than that of the lower brightness enhancement film; A diffusion tape is provided where the diffusion film is larger than the lower brightness enhancement film.

9. A mobile communication terminal, 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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