Backlight module and electronic equipment

Abstract

The utility model discloses a backlight module and electronic equipment, and the backlight module comprises a back plate which is regularly provided with a plurality of light-emitting units; the plurality of light-emitting units are connected in parallel; the light guide plate faces the side, provided with the light emitting unit, of the back plate; an optical module is arranged on the side, back to the back plate, of the light guide plate. Each light-emitting unit can be independently controlled, a finer dimming effect can be achieved, and the display contrast ratio and purity are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field, in particular to a backlight module and electronic equipment. BACKGROUND

[0002] With the continuous development of display technology, the consumer's quality requirement to display equipment is higher and higher. The traditional backlight structure usually adopts the whole light adjusting mode, and this mode cannot carry out local light adjusting according to image content, leading to low display contrast, insufficient pure black and other problems.

[0003] The above technical problems have become technical problems to be solved in the industry. CONTENT OF THE UTILITY MODEL

[0004] In order to solve at least the above technical problems, the purpose of the utility model is to provide a backlight module, which realizes local light adjusting and improves contrast.

[0005] In order to achieve the above purpose, the backlight module provided by the application comprises:

[0006] A backboard, a plurality of light emitting units are regularly arranged on the backboard;

[0007] The plurality of light emitting units are connected in parallel;

[0008] A light guide plate, the light guide plate faces the side of the backboard where the light emitting units are arranged;

[0009] The side of the light guide plate away from the backboard is provided with an optical module.

[0010] Further, it further comprises:

[0011] A rubber frame, the light guide plate is arranged in the rubber frame.

[0012] Further, a plurality of mounting grooves are arranged on the backboard, and the light emitting units are arranged in the mounting grooves.

[0013] Further, the plurality of mounting grooves are arranged on the backboard at equal intervals.

[0014] Further, each mounting groove matches one light emitting unit.

[0015] Further, the light emitting unit comprises a heat sink, a control circuit and an LED lamp.

[0016] Further, the heat sink is attached to the backboard;

[0017] The control circuit is electrically connected with the LED lamp;

[0018] The light of the LED lamp working is emitted to the direction of the optical module.

[0019] Further, the optical module comprises:

[0020] The diffusion film faces the light guide plate.

[0021] The diffusion film is parallel to the light guide plate.

[0022] Further, the optical module further comprises a lower light enhancement film and an upper light enhancement film.

[0023] The lower light enhancement film is arranged on the side of the diffusion film away from the light guide plate.

[0024] The upper light enhancement film is arranged on the side of the lower light enhancement film away from the diffusion film.

[0025] To achieve the above-mentioned purpose, the electronic device provided by the present application comprises the backlight module.

[0026] The backlight module of the present application comprises a back plate, a plurality of light emitting units arranged regularly on the back plate, the plurality of light emitting units being connected in parallel, a light guide plate facing the side of the back plate on which the light emitting units are arranged, and an optical module arranged on the side of the light guide plate away from the back plate. Each light emitting unit can be independently controlled, and a more precise dimming effect can be achieved, the display contrast and purity are improved, and the display quality is improved. The design of the heat dissipation fin facilitates the dissipation of heat of the light emitting unit, thereby improving the stability and service life of the light emitting unit. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included 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, serve to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0028] Figure 1 FIG. 1 is a structural schematic diagram of the backlight module of the present application.

[0029] Explanation of reference signs:

[0030] 101-back plate; 102-glass frame; 103-light guide plate; 104-diffusion film; 105-lower light enhancement film; 106-upper light enhancement film. DETAILED DESCRIPTION

[0031] 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 interpreted as being limited to the embodiments described herein, but rather, 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 for exemplary purposes only, and are not intended to limit the scope of protection of the present application.

[0032] 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 can include additional steps and / or omit performing the steps shown. The scope of the present application is not limited in this regard.

[0033] The term "comprising" and variations thereof as used herein are open-ended, that is, "including but not limited to". The term "based on" is "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"; the term "some embodiments" means "at least some embodiments". Related terms are defined in the following description.

[0034] It should be noted that the modification of "one", "a plurality of" mentioned in the present application is illustrative but not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more". "A plurality" should be understood as two or more.

[0035] Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0036] The embodiment of the present application provides a backlight module, comprising:

[0037] A back plate, a plurality of light emitting units are regularly arranged on the back plate;

[0038] The plurality of light emitting units are in parallel connection;

[0039] A light guide plate, the light guide plate faces the side of the back plate where the light emitting units are arranged;

[0040] The side of the light guide plate away from the back plate is provided with an optical module.

[0041] Embodiment 1

[0042] Figure 1 is a structural schematic diagram of the backlight module of the embodiment of the present application, and the backlight module of the embodiment of the present application will be described in detail below. Figure 1 , the backlight module of the embodiment of the present application is described in detail.

[0043] In an exemplary embodiment, the backlight module of the embodiment of the present application comprises a back plate 101.

[0044] In an exemplary embodiment, the back plate 101 can be a metal plate according to needs.

[0045] In an exemplary embodiment, a plurality of light emitting units are regularly arranged on the back plate 101, for example, a plurality of rows and a plurality of columns of light emitting units are arranged on the back plate 101, and the light emitting units in each row and each column are arranged at equal intervals.

[0046] In an exemplary embodiment, the plurality of light emitting units are in parallel, i.e. each light emitting unit is independently controlled, so that the light emitting units in the bright area can increase the brightness, while the light emitting units in the dark area can decrease the brightness, thereby achieving a high-contrast display effect.

[0047] In an exemplary embodiment, the backlight module of the present application further comprises a light guide plate 103.

[0048] In an exemplary embodiment, the light guide plate 103 faces the side of the back plate 101 where the light emitting units are arranged, i.e. the side of the back plate 101 where the light emitting units are arranged faces the light guide plate 103.

[0049] In an exemplary embodiment, the back plate 101 and the light guide plate 103 are arranged in parallel.

[0050] In an exemplary embodiment, the side of the light guide plate 103 facing away from the back plate 101 is provided with an optical module.

[0051] In an exemplary embodiment, the light guide plate 103 is arranged in the rubber frame 102.

[0052] In an exemplary embodiment, the back plate 101 is provided with a plurality of mounting grooves, and the light emitting units are arranged in the mounting grooves.

[0053] In an exemplary embodiment, the plurality of mounting grooves are arranged at equal intervals on the back plate 101.

[0054] In an exemplary embodiment, each mounting groove matches one light emitting unit.

[0055] In an exemplary embodiment, the light emitting unit comprises a heat sink, a control circuit and an LED lamp.

[0056] In an exemplary embodiment, the heat sink is attached to the back plate 101, i.e. to facilitate the dissipation of heat from the light emitting unit, thereby improving the stability and life of the light emitting unit.

[0057] In an exemplary embodiment, the control circuit is electrically connected to the LED lamp.

[0058] In an exemplary embodiment, the light emitted by the LED lamp when in operation is emitted towards the optical module.

[0059] In an exemplary embodiment, the optical module comprises a diffusion film 104.

[0060] In an exemplary embodiment, the diffusion film 104 faces the light guide plate 103.

[0061] In an exemplary embodiment, the diffusion film 104 is parallel to the light guide plate 103.

[0062] In an exemplary embodiment, the optical module further comprises a lower light enhancement film 105 and an upper light enhancement film 106.

[0063] In an exemplary embodiment, the lower light enhancement film 105 is arranged on the side of the diffusion film 104 opposite to the light guide plate 103.

[0064] In an exemplary embodiment, the upper light enhancement film 106 is arranged on the side of the lower light enhancement film 105 opposite to the diffusion film 104.

[0065] In an exemplary embodiment, the upper light enhancement film 106 is arranged parallel to the lower light enhancement film 105.

[0066] In an exemplary embodiment, the lower light enhancement film 105 is arranged parallel to the diffusion film 104.

[0067] In an exemplary embodiment, the arrangement of the optical module further improves the uniformity and brightness of the light.

[0068] In an exemplary embodiment, each light emitting unit can be independently controlled, which can achieve more precise dimming effect, improve display contrast and purity, and improve display quality.

[0069] Embodiment 2

[0070] Embodiment 2 is an electronic device comprising the backlight module of the above embodiments.

[0071] Although the embodiments disclosed by the present application are as above, the content is only the embodiment adopted for the purpose of facilitating the understanding of the present application, and is not used to limit the present application. Any person skilled in the art of the present application can make any modification and change in the form and details without departing from the spirit and scope of the present application. However, the patent protection scope of the present application shall be subject to the scope defined by the appended claims.

Claims

1. A backlight module, characterized in that, include: A backplate, on which multiple light-emitting units are arranged in a regular pattern; The multiple light-emitting units are connected in parallel; A light guide plate, the side of the light guide plate facing the back plate on which the light-emitting unit is located; An optical module is provided on the side of the light guide plate facing away from the back plate.

2. The backlight module according to claim 1, characterized in that, It also includes: The light guide plate is disposed within the frame.

3. The backlight module according to claim 2, characterized in that, The back plate is provided with multiple mounting slots, and the light-emitting unit is disposed in the mounting slot.

4. The backlight module according to claim 3, characterized in that, Multiple mounting slots are equally spaced on the back plate.

5. The backlight module according to claim 4, characterized in that, Each mounting slot is matched with one of the light-emitting units.

6. The backlight module according to claim 5, characterized in that, The light-emitting unit includes a heat sink, a control circuit, and an LED light.

7. The backlight module according to claim 6, characterized in that, The heat sink is attached to the back plate; The control circuit is electrically connected to the LED lamp; The light emitted by the LED lamp when it is working is directed toward the optical module.

8. The backlight module according to claim 7, characterized in that, The optical module includes: A diffusion film is provided, the diffusion film facing the light guide plate; The diffusion film is parallel to the light guide plate.

9. The backlight module according to claim 8, characterized in that, The optical module also includes: a lower brightness enhancement film and an upper brightness enhancement film; The lower brightness enhancement film is provided on the side of the diffusion film facing away from the light guide plate; The upper brightness enhancement film is provided on the side of the lower brightness enhancement film facing away from the diffusion film.

10. An electronic device, characterized in that, Includes the backlight module as described in any one of claims 1-9.

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