Backlight module without dark space

Abstract

The utility model discloses a backlight module without dark space, which comprises a base, a top frame, rubber frames, a light source, a light uniformizing guide plate and a backlight module, the top frame and the rubber frames are rectangular, the top frame is detachably connected to the base, the rubber frames are positioned at the bottom of the top frame, the backlight module is horizontally arranged between the rubber frames, and the light source is positioned between the light source and the light uniformizing guide plate. The light source is arranged on the side wall of the rubber frame and located on one side of the backlight module, the rubber frame is arranged in an L shape, the light uniformizing guide plate is horizontally arranged and located at the bottom of the rubber frame, and the light uniformizing guide plate is located on the other side of the backlight module and located above the backlight module. According to the backlight module, the light beams generated on the backlight module can be reflected to the dark area on the backlight module through the uniform light guide plate, so that the dark area on the backlight module can emit light with the same brightness as other areas on the backlight module, and the light emitting effect of the backlight module is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of display equipment, in particular to a backlight module without dark areas. Background Art

[0002] Liquid crystal display devices, as a flat-panel display device, are widely used in electronic products such as mobile phones, laptops, tablet computers, digital cameras, car displays, and LCD TVs. The main structure of a liquid crystal display device includes a liquid crystal panel and a backlight module. The main function of the backlight module is to provide uniform, high-brightness light for the liquid crystal panel, converting commonly used linear or point light emitters into high-brightness and evenly distributed surface light emitters through an optical mechanism, so that the liquid crystal panel can display images normally. As one of the key components of a liquid crystal display device, the backlight module's luminous effect will directly affect the image quality of the liquid crystal display device. In addition to being used in liquid crystal display devices, backlight modules can also be used in display devices that require backlights, such as electronic paper and digital photo frames.

[0003] However, when the existing backlight module is in use, the light source is generally on one side of the backlight module. When the light source or light source illuminates, the backlight module far away from the light source or light source is not effectively illuminated, which will cause darkness and form a dark area, resulting in poor display effect and color difference on the display screen.

[0004] Therefore, it is necessary to provide a backlight module without dark areas for use. Utility Model Content

[0005] The purpose of the present invention is to provide a backlight module without dark areas, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A backlight module without dark areas comprises a base, a top frame, a plastic frame, a light source, a uniform light guide plate and a backlight module. The top frame and the plastic frame are both rectangular. The top frame is detachably connected to the base. The plastic frame is located at the bottom of the top frame. The backlight module is horizontally arranged between the plastic frames. The light source is arranged on the side wall of the plastic frame and is located on one side of the backlight module. The plastic frame is L-shaped. The uniform light guide plate is horizontally arranged and is located at the bottom of the plastic frame. The uniform light guide plate is located on the other side of the backlight module and above the backlight module.

[0008] According to a further technical solution, the light uniforming guide plate includes a first reflector, which is horizontally arranged at the bottom of the plastic frame. The bottom of the first reflector is provided with a plurality of convex points arranged at equal intervals, and the convex points are transparent semicircular convex mirrors.

[0009] According to a further technical solution, the light uniforming guide plate includes a second reflector, which is horizontally arranged at the bottom of the plastic frame. The interior of the second reflector is provided with a plurality of concave points arranged at equal intervals, and the concave points are embedded in semicircular concave mirrors.

[0010] According to a further technical solution, a plurality of heat dissipation fins arranged at equal intervals are provided at the bottom of the base.

[0011] According to a further technical solution, the base is clamped in the top frame, and a number of equally spaced clips are provided on the side walls at both ends of the base. The top frame is provided with a slot that is clamped with the clips, and each clip is provided with a clip part connected to the top frame.

[0012] A further technical solution is that the latch includes a trigger plate, a plug rod and a plug spring, the plug spring is vertically arranged on the top of the plug rod and the plug spring is connected to the base, the plug rod is slidably connected to the latch, the trigger plate is horizontally arranged on the plug rod, and the bottom side wall of the slot is provided with a plug hole that cooperates with the plug rod.

[0013] Beneficial effects of the utility model:

[0014] When the light source of the present invention works, the backlight module generates light, but there will be a dark area on the side of the backlight module away from the light source. At this time, the light beam generated on the backlight module can be reflected to the dark area on the backlight module through the uniform light guide plate, so that the dark area on the backlight module can be illuminated with the same brightness as other areas on the backlight module, making the luminous effect of the backlight module more uniform.

[0015] Other features and advantages of the novel invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : A three-dimensional structural diagram of the present invention.

[0017] Figure 2 : A three-dimensional structural sectional view of the present utility model.

[0018] Figure 3 : A schematic diagram of the local three-dimensional structure of the present invention.

[0019] Figure 4 : A structural diagram of embodiment 1 of the uniform light guide plate in the present invention.

[0020] Figure 5 : A structural diagram of embodiment 2 of the uniform light guide plate in the present invention.

[0021] Figure 6 : A schematic diagram of the three-dimensional structure of the fastener of the present invention.

[0022] Figure 7 : Cross-sectional view of the utility model.

[0023] Figure 8 : Figure 7 Enlarged view of point A in the middle.

[0024] Figure numerals: 1-base, 12-clip, 2-top frame, 21-slot, 3-plastic frame, 4-light source, 5-uniform light guide plate, 51-first reflector, 52-convex point, 53-second reflector, 54-concave point, 6-backlight module, 7-trigger plate, 8-plug-in rod, 9-plug-in spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] Please refer to Figure 1-8 As shown; the utility model provides a technical solution for a backlight module without dark areas: a backlight module without dark areas, comprising a base 1, a top frame 2, a plastic frame 3, a light source 4, a uniform light guide plate 5 and a backlight module 6, the top frame 2 and the plastic frame 3 are both rectangular, the top frame 2 is detachably connected to the base 1, the plastic frame 3 is located at the bottom of the top frame 2, the backlight module 6 is horizontally arranged between the plastic frames 3, the light source 4 is arranged on the side wall of the plastic frame 3 and is located on one side of the backlight module 6, the plastic frame 3 is L-shaped, the uniform light guide plate 5 is horizontally arranged and located at the bottom of the plastic frame 3, the uniform light guide plate 5 is located on the other side of the backlight module 6 and above the backlight module 6.

[0027] During use, the light source 4 works to make the backlight module 6 generate light, but there will be a dark area on the side of the backlight module 6 away from the light source 4. At this time, the light beam generated on the backlight module 6 can be reflected to the dark area on the backlight module 6 through the uniform light guide plate 5, so that the dark area on the backlight module 6 can be illuminated with the same brightness as other areas on the backlight module 6, making the luminous effect of the backlight module 6 more uniform; the reflected fill light can effectively eliminate the dark area and make the brightness of the entire backlight module more uniform. In this way, whether you are watching videos, browsing pictures or reading text, you can enjoy a clearer and more delicate picture. The color saturation and contrast will also be improved, and the image will be more vivid and lifelike, bringing a more excellent visual experience.

[0028] Example 1 of the uniform light guide plate 5; Figure 4 As shown,

[0029] In this embodiment, the light uniforming guide plate 5 includes a first reflector 51, which is horizontally arranged at the bottom of the plastic frame 3. The bottom of the first reflector 51 is provided with a plurality of convex points 52 arranged at equal intervals, and the convex points 52 are transparent semicircular convex mirrors.

[0030] During use, the plurality of protrusions 52 on the first reflector 51 reflect the light irradiated by the light source 4 on the backlight module 6 to the dark area on the backlight module 6;

[0031] The convex mirror diffuses incident light to a certain degree, allowing the originally concentrated light to be more widely distributed in the dark areas. For the dark areas on the backlight module 6, the convex mirror quickly diffuses surrounding light, effectively filling the dark areas and improving the uniformity of the entire backlight area. After the convex mirror fills the dark areas, the brightness is significantly improved, and the transition with the surrounding areas is more natural.

[0032] Convex mirrors can focus a portion of light onto a specific dark area. When the dark area is small but requires higher brightness, this characteristic of convex mirrors can quickly increase the local brightness, making the image or display content in that area more clearly visible.

[0033] Example 2 of the light-uniform guide plate 5; Figure 5 As shown,

[0034] In this embodiment, the light uniforming guide plate 5 includes a second reflector 53, which is horizontally arranged at the bottom of the plastic frame 3. The interior of the second reflector 53 is provided with a plurality of equally spaced concave points 54, and the concave points 54 are embedded in semicircular concave mirrors.

[0035] During use, the plurality of concave points 54 on the second reflector 53 reflect the light irradiated by the light source 4 on the backlight module 6 to the dark area on the backlight module 6;

[0036] Concave mirrors have the ability to converge light, focusing scattered light into dark areas. They collect light from a wider range of angles and efficiently direct it toward the center of the dark area, thereby improving overall brightness. After the concave mirror fills in the dark area, the brightness is uniform and stable, significantly improving the visual effect.

[0037] The concave mirror can precisely control the direction of reflected light by adjusting its curvature and position. This allows for more targeted light guidance to the desired location when filling dark areas of the backlight module 6, avoiding light waste and unnecessary scattering. For example, in backlight modules 6 that require high illumination accuracy, the concave mirror's precise light control capability can ensure that dark areas receive just the right amount of fill light without affecting the illumination of other areas.

[0038] Because concave mirrors can focus and stably reflect light into dark areas, they can provide a more stable light intensity. Compared with other fill-in lighting methods, the brightness of dark areas after concave mirror fill-in is less volatile, and there will be no flickering.

[0039] In this embodiment, a plurality of heat dissipation fins are provided at equal intervals on the bottom of the base 1 ; the heat dissipation fins on the base 1 can dissipate heat generated when the backlight module 6 is working, thereby increasing the service life of the backlight module 6 .

[0040] In this embodiment, referring to Figure 6 As shown, the base 1 is snapped into the top frame 2, and a number of snaps 12 are arranged at equal intervals on the side walls at both ends of the base 1. The top frame 2 is provided with a slot 21 that is snapped with the snaps 12, and each of the snaps 12 is provided with a snap part connected to the top frame 2.

[0041] In this embodiment, referring to Figure 6 As shown, the latch includes a trigger plate 7, a plug rod 8 and a plug spring 9, the plug spring 9 is vertically arranged on the top of the plug rod 8 and the plug spring 9 is connected to the base 1, the plug rod 8 is slidably connected to the latch 12, the trigger plate 7 is horizontally arranged on the plug rod 8, and the bottom side wall of the slot 21 is provided with a plug hole that is plugged into the plug rod 8.

[0042] When the base 1 and the top frame 2 need to be disassembled, the pull plate 7 is moved inward, so that the plug rod 8 moves upward at the buckle 12, which makes the plug rod 8 contact the plug spring 9, thereby compressing the plug spring 9 and separating the plug rod 8 from the plug hole, so that the buckle 12 is disengaged from the slot 21, thereby achieving separation and disassembly between the base 1 and the top frame 2;

[0043] When the base 1 and the top frame 2 are installed, the plug-in rod 8 is inserted into the plug-in hole through the interference of the plug-in spring 9, so that the buckle 12 is engaged in the card slot 21, so that the base 1 and the top frame 2 are firmly connected;

[0044] It should be noted that this connection method has a simple structure and is convenient and fast to operate.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A backlight module without dark areas, characterized by: It includes a base (1), a top frame (2), a plastic frame (3), a light source (4), a uniform light guide plate (5) and a backlight module (6); The top frame (2) and the plastic frame (3) are both arranged in a rectangular shape, and the top frame (2) is detachably connected to the base (1); The plastic frame (3) is located at the bottom of the top frame (2), the backlight module (6) is horizontally arranged between the plastic frames (3), the light source (4) is arranged on the side wall of the plastic frame (3) and is located on one side of the backlight module (6), and the plastic frame (3) is arranged in an L shape; The light-uniforming guide plate (5) is arranged horizontally and is located at the bottom of the plastic frame (3); the light-uniforming guide plate (5) is located on the other side of the backlight module (6) and above the backlight module (6).

2. The backlight module without dark areas according to claim 1, characterized in that: The light-uniform guide plate (5) comprises a first reflector (51), the first reflector (51) being arranged horizontally at the bottom of the plastic frame (3), and the bottom of the first reflector (51) being provided with a plurality of convex points (52) arranged at equal intervals, wherein the convex points (52) are semicircular convex mirrors and are transparent.

3. The backlight module without dark areas according to claim 1, characterized in that: The light-uniform guide plate (5) comprises a second reflector (53), the second reflector (53) being arranged horizontally at the bottom of the plastic frame (3), and a plurality of concave points (54) arranged at equal intervals are provided inside the second reflector (53), and the concave points (54) are semicircular concave mirrors embedded therein.

4. The backlight module without dark areas according to claim 1, wherein: The bottom of the base (1) is provided with a plurality of heat dissipation fins arranged at equal intervals.

5. The backlight module without dark areas according to claim 1, characterized in that: The base (1) is snap-fitted into the top frame (2), and a plurality of snap-fits (12) are provided on both end side walls of the base (1) at equal intervals. The top frame (2) is provided with a snap-fitting groove (21) that is snap-fitted with the snap-fits (12), and each snap-fitting part (12) is provided with a snap-fitting part connected to the top frame (2).

6. The backlight module without dark areas according to claim 5, characterized in that: The latching member comprises a trigger plate (7), a plug-in rod (8) and a plug-in spring (9); The plug spring (9) is vertically arranged on the top of the plug rod (8) and the plug spring (9) is connected to the base (1); the plug rod (8) is slidably connected to the buckle (12); and the trigger plate (7) is horizontally arranged on the plug rod (8); A plug hole for plugging and cooperating with the plug rod (8) is provided on the bottom side wall of the card slot (21).

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