Reflecting lampshade and backlight module

Abstract

The utility model relates to a reflection lampshade and a backlight module, the reflection lampshade comprises a reflection lampshade, a plurality of first lamp cups and a plurality of second lamp cups, and more light can enter the periphery of the reflection lampshade through third reflection holes. The light entering the second reflection hole and the first reflection hole can be reflected to the periphery of the reflection lampshade through the second lamp cup and the first lamp cup, the first lamp cup with the higher vertical height is good in light condensation effect, the light diffusion direction is more accurate, and the service life of the lamp is prolonged. The second lamp cup with the lower vertical height can enable light to be diffused to the periphery of the reflection lampshade more widely, so that more light is diffused to the periphery of the reflection lampshade, the brightness of the periphery of the reflection lampshade is improved, the situation that some areas on the reflection lampshade are too bright and the periphery is too dark is avoided, and therefore the overall luminance of the backlight module is uniform, and the backlight module is more attractive. And the display effect of the backlight module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, in particular to a backlight module with uniform light emission. Background Art

[0002] LED backlight is a backlight technology commonly used in the field of liquid crystal display. It uses LED as a light source to illuminate the LCD panel to display images and content. It is widely used due to its energy saving and rich color performance. Common backlight modules usually have a reflective lampshade to reflect the light emitted by the LED light panel, so that more light is projected onto the LCD panel, increasing the display brightness to achieve better display effects.

[0003] The structure of the lamp cup of the reflective lampshade currently on the market is not designed reasonably. The angle at which the lamp cup reflects light is not suitable and fails to effectively reflect light, resulting in the light not being able to diffuse well outside the lamp cup. As a result, some areas of the backlight module using the reflective lampshade are too bright, and some areas have dark shadows, resulting in uneven overall luminous brightness of the backlight module, affecting the display effect of the backlight module. Utility Model Content

[0004] Based on this, it is necessary to provide a reflective lampshade and a backlight module.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A reflective lampshade, comprising:

[0007] A reflective lampshade, wherein a plurality of first reflective holes, a second reflective hole and a third reflective hole are respectively formed on the reflective lampshade, each of the first reflective holes is located in the central area of ​​the reflective lampshade, each of the second reflective holes is arranged around each of the first reflective holes, and each of the third reflective holes is arranged around each of the second reflective holes;

[0008] A plurality of first lamp cups, each of which is disposed on the reflective lampshade, and each of which is connected to one of the first reflective holes;

[0009] A plurality of second lamp cups are provided, each of the second lamp cups is arranged on the reflective lampshade, each of the second lamp cups is connected to a second reflective hole, and a vertical height of the first lamp cup on the reflective lampshade is greater than a vertical height of the second lamp cup on the reflective lampshade.

[0010] In one embodiment, the first lamp cup includes four first reflective plates, the first side of each of the first reflective plates is connected to the reflective lampshade, each of the first reflective plates is gradually inclined along the direction from the first side to the second side, and each of the first reflective plates is sequentially connected and spaced to form a first reflective cavity, and the first reflective cavity is connected to the first reflective hole.

[0011] In one embodiment, a width of a first side of the first reflective cavity is smaller than a width of a second side of the first reflective cavity.

[0012] In one embodiment, the second lamp cup includes four second reflective plates, the first side of each second reflective plate is connected to the reflective lampshade, each second reflective plate is gradually inclined along the direction from the first side to the second side, and each second reflective plate is sequentially connected and spaced to form a second reflective cavity, and the second reflective cavity is connected to the second reflective hole.

[0013] In one embodiment, a width of the first side of the second reflective cavity is smaller than a width of the second side of the second reflective cavity.

[0014] In one embodiment, an inclination angle of the first reflective plate on the reflective lampshade is smaller than an inclination angle of the second reflective plate on the reflective lampshade.

[0015] In one embodiment, the number of the first lamp cups is greater than the number of the second lamp cups.

[0016] In one embodiment, the height of the first reflective cavity is twice the height of the second reflective cavity.

[0017] In one embodiment, the ratio between the height of the first reflective cavity and the depth of the third reflective hole is 3-4:1.

[0018] A backlight module comprises the reflective lampshade described in any one of the above embodiments.

[0019] The beneficial effects of the present invention are as follows: a reflective lampshade and a backlight module provided by the present invention can allow more light to enter the surroundings of the reflective lampshade through the third reflective hole, and can reflect the light entering the second reflective hole and the first reflective hole to the surroundings of the reflective lampshade through the second lamp cup and the first lamp cup, wherein the first lamp cup with a higher vertical height has a good focusing effect, and the direction of light diffusion is more precise, so that the light can be diffused to the surroundings of the reflective lampshade more accurately, and the second lamp cup with a lower vertical height can diffuse the light more widely to the surroundings of the reflective lampshade, and more light is diffused to the surroundings of the reflective lampshade through the first lamp cup and the second lamp cup, thereby improving the brightness of the surroundings of the reflective lampshade, avoiding certain areas on the reflective lampshade being too bright and the surroundings being too dark, thereby making the overall luminous brightness of the backlight module uniform, and improving the display effect of the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a reflective lampshade according to an embodiment;

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A;

[0023] Figure 3 is a schematic cross-sectional structure diagram of a reflective lampshade according to an embodiment;

[0024] Figure 4 FIG. 4 is a schematic structural diagram of a backlight module according to an embodiment.

[0025] In the accompanying drawings, 100, a reflective lampshade; 110, a first reflective hole; 120, a second reflective hole; 130, a third reflective hole; 200, a first reflective plate; 210, a first reflective cavity; 220, a first lamp cup; 300, a second reflective plate; 310, a second reflective cavity; 320, a second lamp cup; 400, a first tilt angle; 410, a second tilt angle. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0027] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In one embodiment, Figures 1 to 3As shown, a reflective lampshade 100 includes: a reflective lampshade 100, a plurality of first lamp cups 220 and a plurality of second lamp cups 320, wherein the reflective lampshade 100 is respectively provided with a plurality of first reflective holes 110, a second reflective hole 120 and a third reflective hole 130, wherein each of the first reflective holes 110 is located in the central area of ​​the reflective lampshade 100, each of the second reflective holes 120 is arranged around each of the first reflective holes 110, each of the third reflective holes 130 is arranged around each of the second reflective holes 120, each of the first lamp cups 220 is arranged on the reflective lampshade 100, each of the first lamp cups 220 is connected to one of the first reflective holes 110, and a plurality of second lamp cups 320, each of the second lamp cups 320 is arranged on the reflective lampshade 100, each of the second lamp cups 320 is connected to one of the second reflective holes 120, and the vertical height of the first lamp cup 220 on the reflective lampshade 100 is greater than the vertical height of the second lamp cup 320 on the reflective lampshade 100.

[0029] In this embodiment, more light enters the surroundings of the reflective lampshade 100 through the third reflective hole 130, and the light enters the first lamp cup 220 and the second lamp cup 320 through the first reflective hole 110 and the second reflective hole 120. The light is reflected multiple times in the first lamp cup 220 and the second lamp cup 320, and the light can be diffused to the surroundings of the reflective lampshade 100. Among them, the first lamp cup 220 with a higher vertical height has a good focusing effect, and the direction of light diffusion is more precise, so that the light can be diffused to the surroundings of the reflective plate more accurately. The second lamp cup 320 with a lower vertical height can make the light diffuse more widely to the surroundings of the reflective lampshade 100. More light can be diffused to the surroundings of the reflective lampshade 100 through the first lamp cup 220 and the second lamp cup 320, and combined with the light entering through the third reflective hole 130, the luminous brightness around the reflective lampshade 100 can be increased, avoiding certain areas on the reflective lampshade 100 being too bright and the surroundings of the reflective lampshade 100 being too dark, so that the overall luminous brightness of the backlight module is uniform, thereby improving the display effect of the backlight module.

[0030] In one embodiment, Figures 1 to 3As shown, the first lamp cup 220 includes four first reflective plates 200, the first side of each of the first reflective plates 200 is connected to the reflective lampshade 100, each of the first reflective plates 200 is gradually tilted in the direction from the first side to the second side, and each of the first reflective plates 200 is sequentially connected and spaced to form a first reflective cavity 210, and the first reflective cavity 210 is connected to the first reflective hole 110. Specifically, each of the first reflective plates 200 is sequentially connected and spaced to form a square first reflective cavity 210, and light enters the first reflective cavity 210 from the first reflective hole 110, wherein the tilted first reflective plates 200 can reflect light, and the light is continuously reflected in the first reflective cavity 210, so that the light can be better diffused to the surroundings of the reflective lampshade 100.

[0031] In one embodiment, Figure 2 and Figure 3 As shown, the width of the first side of the first reflective cavity 210 is smaller than the width of the second side of the first reflective cavity 210. Specifically, the width difference between the first side of the first reflective cavity 210 and the second side of the first reflective cavity 210 can form an inclined first reflective cavity sidewall, so that light can be reflected in the first reflective cavity 210.

[0032] In one embodiment, Figures 1 to 3 As shown, the second lamp cup 320 includes four second reflective plates 300, the first side of each second reflective plate 300 is connected to the reflective lampshade 100, each second reflective plate 300 is gradually tilted in the direction from the first side to the second side, each second reflective plate 300 is sequentially connected and spaced to form a second reflective cavity 320, and the second reflective cavity 320 is connected to the second reflective hole 120. Specifically, each second reflective plate 200 is sequentially connected and spaced to form a square second reflective cavity 210, and each tilted second reflective plate 300 can reflect light, and the light is continuously reflected in the second reflective cavity 320, so that the light is more easily diffused to the surroundings of the reflective lampshade 100.

[0033] In one embodiment, Figure 1 and Figure 2 As shown, the width of the first end of the second reflective cavity 320 is smaller than the width of the second end of the second reflective cavity 320. Specifically, the width difference between the first side of the second reflective cavity 320 and the second side of the second reflective cavity 300 can form an inclined second reflective cavity sidewall, and the inclined second reflective cavity sidewall can better reflect light.

[0034] In one embodiment, Figure 3As shown, the inclination angle of the first reflector 200 on the reflector lampshade 100 is smaller than the inclination angle of the second reflector 300 on the reflector lampshade 100. Specifically, the inclined first reflector 200 forms a first inclination angle 400 with the surface of the reflector lampshade 100, and the first inclination angle 400 of the first reflector 200 on the reflector lampshade 100 is relatively small. Since the first reflective hole 110 is located at the center of the reflector lampshade 100 and is at a large distance from the outer edge of the reflector lampshade 100, the smaller first inclination angle 400 can reduce the number of reflections of light, can more accurately control the propagation direction of light and can reduce the energy loss during the propagation of light. While ensuring the brightness of the light in the first lamp cup 220, it can also make the light more accurately diffuse around the reflector lampshade 100. The inclined second reflector 300 forms a second inclination angle 410 with the surface of the reflective lampshade 100. The second inclination angle 410 of the second reflective plate 300 on the reflective lampshade 100 is relatively large. Since the distance between the second reflective hole 120 and the outer edge of the reflective lampshade 100 is relatively small, the larger second inclination angle 410 can increase the number of reflections of light on the second reflective plate 300. The propagation distance of light can be extended through multiple reflections, so that more light can be diffused around the reflective lampshade 100. By setting the first inclination angle 400 and the second inclination angle 410 of different sizes, more light can be diffused around the reflective lampshade 100, thereby improving the brightness around the reflective lampshade 100.

[0035] In one embodiment, Figure 3 As shown, the inclination angle of the first reflective plate 200 on the reflective lampshade 100 is 145°-125°, and the inclination angle of the second reflective plate 300 on the reflective lampshade 100 is 168°-148°.

[0036] In one embodiment, Figure 3 As shown, the inclination angle of the first reflective plate 200 on the reflective lampshade 100 is 135°, and the inclination angle of the second reflective plate 300 on the reflective lampshade 100 is 158°.

[0037] In one embodiment, Figures 1 to 3 As shown, the number of the first lamp cups 220 is greater than the number of the second lamp cups 320. Specifically, a larger number of first lamp cups 220 can have a better focusing effect, so that while the light diffuses outward, the luminous brightness of the first lamp cup 220 area on the reflective lampshade 100 will not decrease, so that the overall brightness of the reflective lampshade 100 is uniform.

[0038] In one embodiment, Figure 1 and Figure 2As shown, the outermost portion of the first lamp cup 220 is surrounded by two circles of the second lamp cup 320 , and the outermost portion of the second lamp cup 320 is surrounded by multiple circles of the third reflective holes 130 .

[0039] In one embodiment, Figure 2 and Figure 3 As shown, the height of the first reflection cavity 210 is twice the height of the second reflection cavity 320 .

[0040] In one implementation, Figure 3 As shown, the height of the first lamp cup 220 is 1.5 mm-2.1 mm, and the height of the second lamp cup 320 is 0.5 mm-1.1 mm.

[0041] In one implementation, Figure 3 As shown, the height of the first lamp cup 220 is 1.8 mm, and the height of the second lamp cup 320 is 0.8 mm.

[0042] In one embodiment, Figure 3 As shown, the ratio between the height of the first reflection cavity 210 and the depth of the third reflection hole 130 is 2-3:1.

[0043] In one embodiment, Figure 3 As shown, the depth of the third reflective hole 130 is 0.45 mm-0.05 mm.

[0044] In one embodiment, Figure 3 As shown, the depth of the third reflective hole 130 is 0.25 mm.

[0045] In one embodiment, Figure 4 As shown, a backlight module includes the reflective lampshade 100 described in any one of the above embodiments. Specifically, the backlight module also includes other structures, such as a lamp board, a light guide plate, etc., to achieve its due functions. After the backlight module is provided with the above reflective lampshade 100, the overall luminous effect of the backlight module is uniform and the display effect is good.

[0046] Compared with the prior art, the utility model has at least the following advantages:

[0047] The utility model provides a reflective lampshade and a backlight module, which can allow more light to enter the surroundings of the reflective lampshade through the third reflective hole, and can reflect the light entering the second reflective hole and the first reflective hole to the surroundings of the reflective lampshade through the second lamp cup and the first lamp cup, wherein the first lamp cup with a higher vertical height has a good focusing effect and a more precise direction of light diffusion, and the second lamp cup with a lower vertical height can diffuse the light more widely to the surroundings of the reflective lampshade, so that more light is diffused to the surroundings of the reflective lampshade, thereby improving the brightness of the surroundings of the reflective lampshade, avoiding certain areas on the reflective lampshade being too bright and the surroundings being too dark, thereby making the overall luminous brightness of the backlight module uniform, and improving the display effect of the backlight module.

[0048] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A reflective lampshade, characterized in that: include: A reflective lampshade, wherein a plurality of first reflective holes, a second reflective hole and a third reflective hole are respectively formed on the reflective lampshade, each of the first reflective holes is located in the central area of ​​the reflective lampshade, each of the second reflective holes is arranged around each of the first reflective holes, and each of the third reflective holes is arranged around each of the second reflective holes; A plurality of first lamp cups, each of which is disposed on the reflective lampshade, and each of which is connected to one of the first reflective holes; A plurality of second lamp cups are provided, each of the second lamp cups is arranged on the reflective lampshade, each of the second lamp cups is connected to a second reflective hole, and a vertical height of the first lamp cup on the reflective lampshade is greater than a vertical height of the second lamp cup on the reflective lampshade.

2. The reflector lampshade according to claim 1, characterized in that: The first lamp cup includes four first reflective plates, the first side of each of the first reflective plates is connected to the reflective lampshade, each of the first reflective plates is gradually inclined along the direction from the first side to the second side, and each of the first reflective plates is sequentially connected and spaced to form a first reflective cavity, and the first reflective cavity is connected to the first reflective hole.

3. The reflector lampshade according to claim 2, characterized in that: A width of the first side of the first reflective cavity is smaller than a width of the second side of the first reflective cavity.

4. The reflector lampshade according to claim 3, characterized in that: The second lamp cup includes four second reflective plates, the first side of each of the second reflective plates is connected to the reflective lampshade, each of the second reflective plates is gradually inclined along the direction from the first side to the second side, and each of the second reflective plates is sequentially connected and spaced to form a second reflective cavity, and the second reflective cavity is connected to the second reflective hole.

5. The reflective lampshade according to claim 4, characterized in that: The width of the first side of the second reflective cavity is smaller than the width of the second side of the second reflective cavity.

6. The reflector lampshade according to claim 5, characterized in that: The inclination angle of the first reflective plate on the reflective lampshade is smaller than the inclination angle of the second reflective plate on the reflective lampshade.

7. The reflector lampshade according to claim 1, characterized in that: The number of the first lamp cups is greater than the number of the second lamp cups.

8. The reflector lampshade according to claim 6, characterized in that: The height of the first reflection cavity is twice the height of the second reflection cavity.

9. The reflector lampshade according to claim 8, characterized in that: The ratio between the height of the first reflection cavity and the depth of the third reflection hole is 3-4:

1.

10. A backlight module, characterized in that: The reflective lampshade comprises the reflective lampshade according to any one of claims 1 to 9.

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