Backlight module and electronic equipment

Abstract

The utility model discloses a backlight module and electronic equipment, and the backlight module comprises an iron frame which is internally provided with a reflector plate; a light guide plate is arranged on one side, back to the iron frame, of the reflector plate; an LED lamp is arranged on the side edge of the light guide plate; a film layer is arranged on one side, opposite to the reflector plate, of the light guide plate; a rubber frame is arranged on the side edge of the iron frame; the rubber frame comprises an extension part; the extension part of the rubber frame is arranged on one side, opposite to the reflector plate, of the film layer; the rubber frame is used for limiting movement of the light guide plate in the direction opposite to the reflector plate. Through the arrangement of the rubber frame, the light guide plate is limited to move in the direction opposite to the back of the iron frame, and the phenomenon that the backlight effect is affected by displacement of the light guide plate is avoided.

Description

Technical Field

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

[0002] With the popularization and promotion of the screenization of in-vehicle devices, more and more functions can be realized through touch screens. The iron frame in an in-vehicle touch screen device is usually integrally formed with the housing, which can reduce the mold opening cost. However, in the existing backlight module, there is still a problem that the light guide plate moves in the direction away from the back of the iron frame, that is, the displacement of the light guide plate affects the backlight display effect; moreover, the liquid crystal display panel lacks support, which affects the effect and quality of the product.

[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. Through the setting of the rubber frame, the movement of the light guide plate in the direction away from the back of the iron frame is restricted, and the phenomenon that the displacement of the light guide plate affects the backlight effect is avoided.

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

[0006] An iron frame with a reflective sheet provided therein;

[0007] A light guide plate is provided on the side of the reflective sheet facing away from the iron frame;

[0008] LED lights are provided on the side edges of the light guide plate;

[0009] A film layer is provided on the side of the light guide plate facing away from the reflective sheet;

[0010] A rubber frame is provided on the side edge of the iron frame;

[0011] The rubber frame includes an extension part;

[0012] The extension part of the rubber frame is arranged on the side of the film layer facing away from the reflective sheet;

[0013] The rubber frame is used to limit the movement of the light guide plate in the direction away from the reflective sheet.

[0014] Furthermore, the rubber frame is also used to limit the movement of the film layer in the direction away from the reflective sheet.

[0015] Furthermore, a liquid crystal display panel is provided on the side of the film layer facing away from the reflective sheet.

[0016] Furthermore, the rubber frame also includes a short side;

[0017] The short side of the rubber frame is attached to the side edge of the iron frame.

[0018] Furthermore, the extension part of the rubber frame is also used to support the liquid crystal display panel.

[0019] Furthermore, a protrusion is provided on the side of the short side of the rubber frame facing the iron frame;

[0020] A groove is provided at the position of the iron frame corresponding to the protrusion, and the groove matches the protrusion.

[0021] Furthermore, the film layer includes:

[0022] A lower brightness enhancement film, which is disposed on the side of the light guide plate facing away from the reflective sheet.

[0023] Furthermore, the film layer also includes:

[0024] An upper brightness enhancement film, which is disposed on the side of the lower brightness enhancement film facing away from the light guide plate.

[0025] Furthermore, a fixing screw thread is provided on the side of the iron frame facing away from the light guide plate.

[0026] To achieve the above object, an electronic device provided by the present application includes: the above backlight module.

[0027] The backlight module of the embodiment of the present application includes: an iron frame, with a reflective sheet provided inside the iron frame; a light guide plate is provided on the side of the reflective sheet facing away from the iron frame; an LED lamp is provided on the side of the light guide plate; a film layer is provided on the side of the light guide plate facing away from the reflective sheet; a rubber frame is provided on the side of the iron frame; the rubber frame includes an extension part; the extension part of the rubber frame is disposed on the side of the film layer facing away from the reflective sheet; the rubber frame is used to limit the movement of the light guide plate in the direction away from the reflective sheet. Through the setting of the rubber frame, the movement of the light guide plate in the direction away from the back of the iron frame is restricted, avoiding the phenomenon that the displacement of the light guide plate affects the backlight effect. Description of the Drawings

[0028] 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:

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

[0030] Description of the Reference Numerals:

[0031] 101 - iron frame; 102 - FPC; 103 - LED lamp; 104 - reflective sheet; 105 - light guide plate; 106 - groove; 107 - rubber frame; 108 - foam; 109 - liquid crystal display panel; 110 - fixing screw thread. Detailed Embodiments

[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 described in the method embodiments of the present application can be executed 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 regard.

[0034] The term "including" and its variations used herein 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.

[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 otherwise clearly stated 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 frame, and a reflector is provided inside the iron frame;

[0038] A light guide plate is provided on the side of the reflector facing away from the iron frame;

[0039] LED lights are provided on the side edges of the light guide plate;

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

[0041] A rubber frame is provided on the side edge of the iron frame;

[0042] The rubber frame includes an extension part;

[0043] The extension part of the rubber frame is arranged on the side of the film layer facing away from the reflector;

[0044] The rubber frame is used to limit the movement of the light guide plate in the direction away from the reflector.

[0045] Embodiment 1

[0046] Figure 1is a schematic structural diagram of the backlight module according to an embodiment of the present application. The following will be combined with Figure 1 to describe the backlight module according to the embodiment of the present application in detail.

[0047] In some exemplary embodiments, the backlight module according to the embodiment of the present application includes an iron frame 101.

[0048] In some exemplary embodiments, the material of the iron frame 101 is metal. According to needs, the iron frame 101 is integrally formed with the housing of the terminal product; for example, it is formed by injecting iron solution into a mold for die-casting.

[0049] In some exemplary embodiments, a reflector 104 is provided inside the iron frame 101.

[0050] In some exemplary embodiments, the reflector 104 is attached inside the iron frame 101, as Figure 1 shown.

[0051] In some exemplary embodiments, the backlight module according to the embodiment of the present application further includes a light guide plate 105.

[0052] In some exemplary embodiments, the light guide plate 105 is disposed on a side of the reflector 104 facing away from the iron frame 101.

[0053] In some exemplary embodiments, the light guide plate 105 (light guide plate) is made of optical-grade acrylic / PC sheet, and then a high-tech material with extremely high refractive index and non-light-absorbing is used to print light guide points on the bottom surface of the optical-grade acrylic sheet by laser engraving, V-shaped cross-grid engraving, and UV screen printing techniques; the optical-grade acrylic sheet is used to absorb the light emitted from the light-emitting body and stay on the surface of the optical-grade acrylic sheet. When the light hits each light guide point, the reflected light will spread in all directions, and then the reflection condition is destroyed and emitted from the front surface of the light guide plate 105. Through various light guide points with different densities and sizes, the light guide plate 105 can emit light evenly.

[0054] In some exemplary embodiments, the light guide plate 105 is used to conduct light.

[0055] In some exemplary embodiments, the reflector 104 is used to reflect the light exposed on the bottom surface of the light guide plate 105 back into the light guide plate 105 to improve the light use efficiency. The backlight module according to the embodiment of the present application further includes a light-emitting body.

[0056] In some exemplary embodiments, the light-emitting body is, for example, an LED lamp 103.

[0057] In some exemplary embodiments, the LED lamp 103 is disposed on the side of the light guide plate 105; that is, the light conducted by the light guide plate 105 comes from the LED lamp 103.

[0058] In some exemplary embodiments, the LED lamp 103 is disposed on the FPC 102, that is, the FPC 102 is provided at a corresponding position of the iron frame 101 where the light guide plate 105 is located, and the LED lamp 103 is provided on the side of the FPC 102 facing the light guide plate 105, as Figure 1 shown.

[0059] In some exemplary embodiments, a film layer is provided on the side of the light guide plate 105 facing away from the reflector 104. In some exemplary embodiments, the film layer includes: a lower brightness enhancement film.

[0060] In some exemplary embodiments, the lower brightness enhancement film is disposed on the side of the light guide plate 105 facing away from the reflector 104.

[0061] In some exemplary embodiments, the film layer further includes: an upper brightness enhancement film.

[0062] In some exemplary embodiments, the upper brightness enhancement film is disposed on the side of the lower brightness enhancement film facing away from the light guide plate 105.

[0063] In some exemplary embodiments, a liquid crystal display panel 109 is provided on the side of the film layer facing away from the reflector 104.

[0064] In some exemplary embodiments, a rubber frame 107 is further provided on the side of the iron frame 101.

[0065] In some exemplary embodiments, the thickness of the rubber frame 107 is 0.5 - 0.8 mm.

[0066] In some exemplary embodiments, the rubber frame 107 includes a short side and an extension part.

[0067] In some exemplary embodiments, the extension part is disposed on the side of the film layer facing away from the reflector 104.

[0068] In some exemplary embodiments, the rubber frame 107 is used to limit the movement of the light guide plate 105 in the direction away from the reflector 104.

[0069] In some exemplary embodiments, the rubber frame 107 is further used to limit the movement of the film layer in the direction away from the reflector 104.

[0070] In some exemplary embodiments, a liquid crystal display panel 109 is provided on the side of the film layer facing away from the reflector 104.

[0071] In some exemplary embodiments, the extension of the glue frame 107 is further used to support the liquid crystal display panel 109.

[0072] In some exemplary embodiments, a foam 108 is further provided between the extension of the glue frame 107 and the liquid crystal display panel 109.

[0073] In some exemplary embodiments, the thickness of the foam 108 is 0.3 - 0.6 mm.

[0074] In some exemplary embodiments, the setting of the foam 108 is equivalent to setting a buffer layer between the extension of the glue frame 107 and the liquid crystal display panel 109, reducing the impact force.

[0075] In some exemplary embodiments, the short side of the glue frame 107 is attached to the side of the iron frame 101.

[0076] In some exemplary embodiments, a protrusion is provided on one side of the short side of the glue frame 107 facing the iron frame 101.

[0077] In some exemplary embodiments, a groove 106 is provided at the position of the iron frame 101 corresponding to the protrusion.

[0078] In some exemplary embodiments, the groove 106 matches the protrusion, that is, the protrusion is arranged in the groove 106 during assembly, and the groove 106 restricts the displacement of the short side, thus better supporting the liquid crystal display panel 109.

[0079] In some exemplary embodiments, a fixed screw hole 110 is provided on the side of the iron frame 101 facing away from the light guide plate 105. Since the iron frame 101 and the housing of the terminal product are integrally formed, the purpose of setting the fixed screw hole 110 is for better fixing.

[0080] In some exemplary embodiments, the setting of the glue frame 107 well restricts the movement of the light guide plate 105 in the direction away from the back of the iron frame 101, that is, the glue frame 107 plays a role in limiting the light guide plate 105, thus avoiding the problem of affecting the backlight display due to the displacement of the light guide plate 105; the setting of the extension of the glue frame 107 also better provides a supporting role for the liquid crystal display panel 109.

[0081] Embodiment 2

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

[0083] In some exemplary embodiments, the electronic device of the embodiment of the present application is, for example, a display device.

[0084] In some exemplary embodiments, the electronic device of the embodiment of the present application is, for example, an in-vehicle display device.

[0085] Although the embodiments disclosed in the present utility model are as above, the content is only an embodiment adopted for the convenience of understanding 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 a reflective sheet is provided inside the iron frame; A light guide plate is provided on the side of the reflective sheet facing away from the iron frame; An LED lamp is provided on the side of the light guide plate; A film layer is provided on a side of the light guide plate facing away from the reflective sheet; A plastic frame is provided on the side of the iron frame; The plastic frame includes an extension portion; The extension portion of the plastic frame is arranged on a side of the film layer facing away from the reflective sheet; The rubber frame is used to limit the movement of the light guide plate in a direction away from the reflective sheet.

2. The backlight module according to claim 1, characterized in that: The plastic frame is also used to limit the movement of the film layer in a direction away from the reflective sheet.

3. The backlight module according to claim 2, characterized in that: A liquid crystal display panel is arranged on the side of the film layer facing away from the reflector.

4. The backlight module according to claim 3, characterized in that: The plastic frame also includes a short side; The short sides of the plastic frame are attached to the sides of the iron frame.

5. The backlight module according to claim 4, characterized in that: The extended portion of the plastic frame is also used to support the liquid crystal display panel.

6. The backlight module according to claim 5, characterized in that: A protrusion is provided on one side of the short side of the rubber frame facing the iron frame; The iron frame is provided with a groove at a position corresponding to the protrusion, and the groove matches the protrusion.

7. The backlight module according to claim 6, characterized in that: The film layer comprises: A lower brightness enhancement film is arranged on a side of the light guide plate facing away from the reflective sheet.

8. The backlight module according to claim 7, characterized in that: The film layer also includes: An upper brightness enhancement film is arranged on a side of the lower brightness enhancement film facing away from the light guide plate.

9. The backlight module according to claim 8, characterized in that: A fixing screw hole is arranged on a side of the iron frame facing away from the light guide plate.

10. An electronic device, characterized in that: A backlight module comprising any one of claims 1 to 9.

Images