Backlight module and electronic equipment

Abstract

The utility model discloses a backlight module and electronic equipment, and the backlight module comprises a frame which is internally provided with a reflecting film; a light guide plate is arranged on one side, back to the frame, of the reflecting film; a diffusion film is arranged on one side, opposite to the reflecting film, of the light guide plate; a bright enhancement film is arranged on one side, back to the light guide plate, of the diffusion film; a reflective polaroid is arranged on one side, opposite to the diffusion film, of the brightness enhancement film; a dustproof pad is arranged on the side, back on to the brightness enhancement film, of the reflection type polaroid. The dustproof pad is arranged on the lower edge area of the reflective polaroid; the dustproof pad is connected with the side edge of the frame; and the dustproof pad is connected with the reflective polaroid through the double-sided adhesive tape. And the risk of dust invasion is solved by arranging a dustproof pad.

Description

Technical Field

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

[0002] Existing backlight modules typically utilize an open backlight structure due to the pursuit of narrow bezels. This structure is simpler than conventional backlight structures, lacking a sealant or metal frame. However, this structure carries the risk of abnormal noise and dust intrusion. Addressing these technical issues has become a pressing technical challenge within the industry. Summary of the Invention

[0003] In order to at least solve the above technical problems, the purpose of the present invention is to provide a backlight module that solves the risk of dust intrusion by providing a dustproof pad.

[0004] In order to achieve the above-mentioned purpose, the backlight module provided in this application includes:

[0005] a frame, wherein a reflective film is provided inside the frame;

[0006] A light guide plate is provided on the side of the reflective film facing away from the frame;

[0007] A diffusion film is provided on the side of the light guide plate facing away from the reflective film;

[0008] A brightness enhancement film is provided on the side of the diffusion film facing away from the light guide plate;

[0009] A reflective polarizer is provided on the side of the brightness enhancement film facing away from the diffusion film;

[0010] A dustproof pad is provided on the side of the reflective polarizer facing away from the brightness enhancement film;

[0011] The dustproof pad is arranged at the lower edge area of the reflective polarizer;

[0012] The dustproof pad is connected to the side of the frame;

[0013] The dustproof pad is connected to the reflective polarizer through double-sided adhesive.

[0014] Furthermore, a backlight placement area is provided on the side of the light guide plate.

[0015] Furthermore, a backlight FPC is provided in the backlight placement area.

[0016] Furthermore, an LED is provided on the backlight FPC, and the LED faces the light guide plate.

[0017] Furthermore, the backlight FPC is connected to the frame via thermal conductive adhesive.

[0018] Furthermore, limiting silicone pads are provided at the inner corners of the frame.

[0019] Furthermore, a through hole is provided on the upper side of the frame;

[0020] The light guide plate is provided with a protrusion at a position corresponding to the through hole;

[0021] The raised portion matches the through hole;

[0022] When the light guide plate is placed in the frame, the protrusion is placed in the through hole, and the through hole is used to limit the movement of the light guide plate.

[0023] Furthermore, a dark-colored light-shielding paper is provided on the outer side of the upper side of the frame;

[0024] The light-shielding paper covers the through-holes.

[0025] Furthermore, a connection layer is provided between the light guide plate and the diffusion film, and the connection layer is provided on a side of the light guide plate close to the LED.

[0026] To achieve the above-mentioned purpose, the electronic device provided in this application includes: the above-mentioned backlight module.

[0027] The backlight module of the embodiment of the present application includes: a frame, a reflective film is provided inside the frame; a light guide plate is provided on the side of the reflective film facing away from the frame; a diffusion film is provided on the side of the light guide plate facing away from the reflective film; a light enhancement film is provided on the side of the diffusion film facing away from the light guide plate; a reflective polarizer is provided on the side of the light enhancement film facing away from the diffusion film; a dustproof pad is provided on the side of the reflective polarizer facing away from the light enhancement film; the dustproof pad is provided at the lower edge area of the reflective polarizer; the dustproof pad is connected to the side of the frame; the dustproof pad is connected to the reflective polarizer by double-sided adhesive. The risk of dust intrusion is solved by providing a dustproof pad; a protrusion is provided at the upper end of the optical film material and a through hole is provided on the upper side of the frame, and the protrusion cooperates with the through hole to limit the occurrence of the optical film detaching from the frame; a limiting silicone pad is provided at the inner corner of the frame, which not only limits the position of the optical film material, but also acts as a buffer when the optical film material expands, thereby preventing the expansion of the optical film material from directly contacting the frame and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying 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 of the present application. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the backlight module structure of an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 101-frame; 102-reflective film; 103-light guide plate; 104-LED; 105-backlight FPC; 106-thermal adhesive; 107-diffusion film; 108-brightness enhancement film; 109-reflective polarizer; 110-dustproof pad. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying 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 described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are for illustrative purposes only and are not intended to limit the scope of protection of the present application.

[0033] It should be understood that the various steps described in the method embodiments of the present application can be performed in different orders 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 respect.

[0034] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to." The term "based on" means "based, at least in part, on." The term "one embodiment" means "at least one embodiment," the term "another embodiment" means "at least one additional embodiment," and the term "some embodiments" means "at least some embodiments." Other terms are defined in the following description.

[0035] It should be noted that the modifications of "one" and "plurality" mentioned in this application are illustrative rather than restrictive. Those skilled in the art will understand that unless the context clearly indicates otherwise, they should be understood as "one or more." "Plurality" should be understood as two or more.

[0036] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0037] The present invention provides a backlight module, comprising:

[0038] a frame, wherein a reflective film is provided inside the frame;

[0039] A light guide plate is provided on the side of the reflective film facing away from the frame;

[0040] A diffusion film is provided on the side of the light guide plate facing away from the reflective film;

[0041] A brightness enhancement film is provided on the side of the diffusion film facing away from the light guide plate;

[0042] A reflective polarizer is provided on the side of the brightness enhancement film facing away from the diffusion film;

[0043] A dustproof pad is provided on the side of the reflective polarizer facing away from the brightness enhancement film;

[0044] The dustproof pad is arranged at the lower edge area of the reflective polarizer;

[0045] The dustproof pad is connected to the side of the frame;

[0046] The dustproof pad is connected to the reflective polarizer through double-sided adhesive.

[0047] Example 1

[0048] Figure 1 This is a schematic diagram of the backlight module structure of the embodiment of the present application. Figure 1 , the backlight module structure of the embodiment of the present application is described in detail.

[0049] In an exemplary embodiment, the backlight module of the embodiment of the present application includes: a frame 101 .

[0050] In an exemplary embodiment, the frame 101 of the embodiment of the present application is, for example, an aluminum frame, and the thickness of the aluminum frame is 1.5-2.0 mm.

[0051] In an exemplary embodiment, a reflective film 102 is provided inside the frame 101 .

[0052] In an exemplary embodiment, a light guide plate 103 is provided on a side of the reflective film 102 facing away from the frame 101 .

[0053] In an exemplary embodiment, a diffusion film 107 is provided on a side of the light guide plate 103 facing away from the reflection film 102 .

[0054] In an exemplary embodiment, a brightness enhancement film 108 is provided on a side of the diffusion film 107 facing away from the light guide plate 103 .

[0055] In an exemplary embodiment, the brightness enhancement film 108 includes an upper brightness enhancement film and a lower brightness enhancement film as needed; the upper brightness enhancement film is disposed on the upper surface of the lower brightness enhancement film, and the lower surface of the lower brightness enhancement film is attached to the diffusion film 107 .

[0056] In an exemplary embodiment, a reflective polarizer 109 is provided on the side of the brightness enhancement film 108 facing away from the diffusion film 107 ; when the brightness enhancement film 108 includes an upper brightness enhancement film and a lower brightness enhancement film, the reflective polarizer 109 is attached to the upper surface of the upper brightness enhancement film.

[0057] In an exemplary embodiment, a dustproof pad 110 is provided on the side of the reflective polarizer 109 facing away from the brightness enhancement film 108 .

[0058] In an exemplary embodiment, the dustproof pad 110 is disposed at a lower edge region of the reflective polarizer 109 .

[0059] In an exemplary embodiment, the dustproof pad 110 is connected to a side of the frame 101 .

[0060] In an exemplary embodiment, the dustproof pad 110 is connected to the reflective polarizer 109 by double-sided adhesive.

[0061] In an exemplary embodiment, the frame 101 is rectangular as a whole as needed, and the dustproof pad 110 is set on the lower side of the frame 101 to cover the gap between the lower side of the frame 101 and the optical film material. The optical film material includes the above-mentioned reflective film 102, light guide plate 103, diffusion film 107, brightness enhancement film 108 and reflective polarizer 109.

[0062] In an exemplary embodiment, a backlight placement area is provided on a side of the light guide plate 103 , for example, the backlight placement area is provided on a lower side of the frame 101 .

[0063] In an exemplary embodiment, a backlight FPC 105 is disposed in the backlight placement area.

[0064] In an exemplary embodiment, an LED 104 is disposed on the backlight FPC 105 , and the LED 104 faces the light guide plate 103 .

[0065] In an exemplary embodiment, the shading plate covers the upper side of the LED 104 . The shading plate can also be used to block side light leakage of the backlight, that is, the light emitted by the LED 104 is limited to the side facing the light guide plate 103 .

[0066] In an exemplary embodiment, the backlight FPC 105 is connected to the frame 101 via a thermally conductive adhesive 106 . The purpose of connecting the backlight FPC 105 to the frame 101 via the thermally conductive adhesive 106 is to facilitate heat dissipation of the backlight FPC 105 .

[0067] In an exemplary embodiment, limiting silicone pads are provided at the inner corners of the frame 101. The limiting silicone pads are provided, for example, at the upper left and upper right corners of the inner side of the frame 101. The optical film material is confined between the left and right limiting silicone pads on the inner side of the frame 101.

[0068] In an exemplary embodiment, the limiting silicone pad not only limits the position of the optical film material, but also acts as a buffer when the optical film material expands, thereby preventing the expanded optical film material from directly contacting the frame 101 and causing damage.

[0069] In an exemplary embodiment, a through hole is provided on the upper side of the frame 101 , and a protrusion is provided on the light guide plate 103 at a position corresponding to the through hole, and the protrusion matches the through hole.

[0070] In an exemplary embodiment, when the light guide plate 103 is placed in the frame 101 , the protrusion is placed in the through hole, and the through hole is used to limit the movement of the light guide plate 103 .

[0071] In an exemplary embodiment, as needed, the through hole on the upper side of the frame 101 can be used only to place the protrusions on the light guide plate 103, and can also be used to place the protrusions on the reflective film 102, the protrusions on the diffusion film 107, the protrusions on the brightness enhancement film 108, and the protrusions on the reflective polarizer 109.

[0072] In an exemplary embodiment, dark-colored light-shielding paper is provided on the outer side of the upper side of the frame 101 .

[0073] In an exemplary embodiment, the light-shielding paper covers the through hole. Since a through hole is opened on the upper side of the frame 101, the optical film such as the light guide plate 103 is provided with a protrusion, and the protrusion is arranged in the through hole. That is, the protrusion is provided on the upper part of the optical film and embedded in the through hole to limit the optical film from detaching from the frame 101. The dark light-shielding paper can avoid the occurrence of light leakage through the through hole.

[0074] In an exemplary embodiment, the dark-colored light-shielding paper is, for example, black light-shielding paper.

[0075] In an exemplary embodiment, a connecting layer is provided between the light guide plate 103 and the diffusion film 107 . The connecting layer is provided on a side of the light guide plate 103 close to the LED 104 . The connecting layer is, for example, strip-shaped and provided at a distance of 1-2 mm from the LED 104 .

[0076] In an exemplary embodiment, a connecting layer is also provided between the light guide plate 103 and the reflective film 102 . The connecting layer is provided on a side of the light guide plate 103 close to the LED 104 . The connecting layer is, for example, in a strip shape and provided at a distance of 1-2 mm from the LED 104 .

[0077] In an exemplary embodiment, a connecting layer is also provided between the diffusion film 107 and the brightness enhancement film 108 . The connecting layer is provided on the side of the diffusion film 107 close to the LED 104 . The connecting layer is, for example, in a strip shape and provided at a distance of 1-2 mm from the LED 104 .

[0078] In an exemplary embodiment, a connecting layer is also provided between the brightness enhancement film 108 and the reflective polarizer 109 , and the connection is provided on the side of the brightness enhancement film 108 close to the LED 104 ; the connecting layer is, for example, in a strip shape and provided at a distance of 1-2 mm from the LED 104 .

[0079] In an exemplary embodiment, the connecting layer is, for example, a double-sided adhesive.

[0080] In an exemplary embodiment, studs are provided on the back side of the frame 101 , that is, on the side of the frame 101 facing away from the reflective film 102 , and the frame 101 is fixed to an external device via the studs.

[0081] Example 2

[0082] Embodiment 2 is an electronic device, comprising the backlight module of the above embodiment.

[0083] Although the embodiments disclosed in the present invention are as described above, the contents are merely embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art to which the present invention belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention. However, the scope of patent protection of the present invention shall still be based on the scope defined by the appended claims.

Claims

1. A backlight module, characterized in that: include: a frame, wherein a reflective film is provided inside the frame; A light guide plate is provided on a side of the reflective film facing away from the frame; A diffusion film is provided on the side of the light guide plate facing away from the reflective film; A brightness enhancement film is provided on the side of the diffusion film facing away from the light guide plate; A reflective polarizer is provided on the side of the brightness enhancement film facing away from the diffusion film; A dustproof pad is provided on the side of the reflective polarizer facing away from the brightness enhancement film; The dustproof pad is arranged at the lower edge area of the reflective polarizer; The dustproof pad is connected to the side of the frame; The dustproof pad is connected to the reflective polarizer through double-sided adhesive.

2. The backlight module according to claim 1, wherein: A backlight placement area is provided on the side of the light guide plate.

3. The backlight module according to claim 2, wherein: A backlight FPC is provided in the backlight placement area.

4. The backlight module according to claim 3, wherein: An LED is provided on the backlight FPC, and the LED faces the light guide plate.

5. The backlight module according to claim 4, wherein: The backlight FPC is connected to the frame via thermal conductive adhesive.

6. The backlight module according to claim 1, wherein: Position limiting silicone pads are provided at the inner corners of the frame.

7. The backlight module according to claim 1, wherein: A through hole is provided on the upper side of the frame; The light guide plate is provided with a protrusion at a position corresponding to the through hole; The protrusion matches the through hole; When the light guide plate is placed in the frame, the protrusion is placed in the through hole, and the through hole is used to limit the movement of the light guide plate.

8. The backlight module according to claim 7, wherein: A dark-colored light-shielding paper is provided on the outer side of the upper side of the frame; The light-shielding paper covers the through hole.

9. The backlight module according to claim 5, wherein: A connection layer is provided between the light guide plate and the diffusion film, and the connection layer is provided on a side of the light guide plate close to the LED.

10. An electronic device, characterized in that: The backlight module comprises the backlight module according to any one of claims 1 to 9.

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