Reflecting cover and backlight assembly

Abstract

The utility model relates to the technical field of backlight modules in the liquid crystal display industry, in particular to a reflecting cover and a backlight assembly, which comprise a reflecting cover body, the reflecting cover body is provided with an outer frame, cup cover structures arranged in an array are arranged in the outer frame, and the cup cover structures are correspondingly provided with a plurality of openings. The edges of the plurality of openings in the middle of the reflecting cover body are provided with inner side reflecting cover arc surfaces, the edges of the plurality of openings adjacent to the outer frame are provided with peripheral reflecting cover arc surfaces, and the outer frame is higher than the cup cover structure. According to the utility model, the reflectivity of the reflecting surface is effectively improved, the diffuse reflection phenomenon is reduced, and the brightness uniformity of a light source after reflection is effectively improved, so that the uniformity of overall backlight light emission is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of backlight module of liquid crystal display industry especially relates to a reflection cover and backlight assembly. BACKGROUND

[0002] The backlight module is the device behind the liquid crystal display to provide light source, and its light emitting effect directly affects the visual effect of the liquid crystal display module. The key technology of the direct type backlight module is to control the light emitting uniformity and improve the light emitting efficiency. In order to realize better partition display effect in the direct type backlight module, the reflection segmentation mechanism is generally used as the emission mechanism of the direct type backlight module, so that the direct type backlight module is isolated into individual display partitions. The reflection cover is composed of a plurality of reflection cups, and a hole or a plurality of holes are arranged in the reflection cup to accommodate one or more LED light sources, so as to adapt to the lamp plate structure with different LED spacing. The light reflected by the reflection cover structure is not uniform, which can cause insufficient local brightness display of the backlight module and affect the visual effect of the liquid crystal display module. The conventional reflection cover structure is generally a cup cover structure arranged in one piece, and the reflected light is not uniform, which can cause insufficient local brightness display of the backlight module and affect the visual effect of the liquid crystal display module.

[0003] Therefore, the reflection cover and the backlight assembly are provided to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the defects in the prior art and provides a reflection cover and a backlight assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A reflection cover comprises a reflection cover body, the reflection cover body is provided with an outer frame, an array of cup cover structures is arranged inside the outer frame, a plurality of openings corresponding to the cup cover structures are arranged, the edges of the openings located in the middle part of the reflection cover body are provided with inner reflection cover arc surfaces, the edges of the openings adjacent to the outer frame are provided with peripheral reflection cover arc surfaces, and the height of the outer frame is higher than the height of the cup cover structures.

[0007] Preferably, the inner reflection cover arc surfaces and the peripheral reflection cover arc surfaces are arranged as high-gloss surfaces.

[0008] Preferably, the peripheral reflection cover arc surfaces adopt convex arc surfaces, the inner reflection cover arc surfaces adopt concave arc surfaces, the radius of the convex arc surfaces is 4 mm, and the radius of the concave arc surfaces is 5 mm.

[0009] A backlight assembly comprises a backlight substrate, and the reflection cover body is arranged on the backlight substrate.

[0010] Preferably, a plurality of LED light sources are mounted on the backlight substrate, and at least one LED light source is arranged in the opening of the array cup cover structure.

[0011] Preferably, the backlight substrate is arranged inside the display shell.

[0012] Preferably, the back of the display shell is provided with a plurality of docking blocks, and the left and right sides and the upper and lower sides of the display shell are symmetrically provided with two docking blocks. The cross section of the docking block is L-shaped. One end of the docking block is detachably connected with the display shell. The other end of the docking block is provided with a round hole.

[0013] Preferably, the round hole can be penetrated by a screw rod, and the screw rod is threadedly sleeved with a nut. The two docking blocks can be fixedly connected through the screw rod and the nut.

[0014] Preferably, the edge of the round hole is provided with a sink groove, and the sink groove is embedded with a matching magnetic block. The side edge of the sink groove is magnetically connected with the magnetic block. The two end side edges of the magnetic block are fixedly provided with buckle blocks. The buckle blocks can be inserted into the round hole and buckled with the docking block.

[0015] Compared with the prior art, the display device has the following beneficial effects:

[0016] The cup cover structure arranged in an array, the high-brightness surface used for the reflection cover arc surface and the peripheral reflection cover arc surface, the effective reduction of the diffuse reflection phenomenon and the improvement of the reflectivity of the reflection surface, the increase of the reflection angle of the incident light of the light source by the inner reflection cover arc surface and the peripheral reflection cover arc surface, the improvement of the brightness uniformity of the light source after reflection, the brightness compensation adjustment of the light and dark difference between the edge and the middle region of the LED light source by the design of the different arc structures of the reflection cover arc surface and the peripheral reflection cover arc surface, and the better uniformity of the overall backlight light emission. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a structural schematic view of the reflection cover body of the present application;

[0019] Figure 2 It is a structural schematic view of the inner reflection cover arc surface and the peripheral reflection cover arc surface of the present application;

[0020] Figure 3 It is a structural schematic view of the display shell of the present application;

[0021] Figure 4 It is the explosion schematic view of the display shell of the utility model;

[0022] Figure 5 It is the structure schematic view of the back of the display shell of the utility model;

[0023] Figure 6 It is the structure schematic view of the back of the display shell of the utility model;

[0024] Figure 7 It is the connection schematic view of the butt joint block and the screw and the nut of the utility model;

[0025] Figure 8 It is the connection schematic view of the butt joint block and the buckle block of the utility model;

[0026] Figure 9 It is the LT simulation effect drawing of the structure of the utility model;

[0027] Figure 10 It is the LT simulation effect drawing of the conventional reflector structure.

[0028] In the drawing: 1, reflector body; 101, inner side reflector arc surface; 102, peripheral reflector arc surface; 103, outer frame; 104, cup cover structure; 105, opening; 2, backlight substrate; 201, LED light source; 3, display shell; 4, butt joint block; 401, round hole; 402, sink groove; 5, screw; 501, nut; 6, magnetic attraction block; 601, buckle block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] Reference Figure 1 , Figure 2A kind of reflector, including reflector body 1, reflector body 1 is equipped with outer frame 103, outer frame 103 is equipped with cup cover structure 104 arranged in array inside, cup cover structure 104 is equipped with several openings 105, the edge of several openings 105 located in the middle of reflector body 1 is equipped with inner side reflector camber surface 101, the edge of several openings 105 adjacent a circle with outer frame 103 is equipped with peripheral reflector camber surface 102, the height of outer frame 103 is higher than the height of cup cover structure 104.

[0032] As a kind of technical optimization scheme of the utility model, inner side reflector camber surface 101 and peripheral reflector camber surface 102 are all set to high bright surface. It can reduce diffuse reflection phenomenon and improve reflectivity of reflection surface, to increase the reflection angle of inner side reflector camber surface 101 and peripheral reflector camber surface 102 to light source incident light, improve the brightness uniformity of light source after reflection.

[0033] As a kind of technical optimization scheme of the utility model, peripheral reflector camber surface 102 adopts outer convex camber surface, and inner side reflector camber surface 101 adopts inner concave camber surface. That is, the camber surface degree radius of outer convex camber surface of peripheral reflector camber surface 102 is 4mm, and the camber surface degree radius of inner concave camber surface of inner side reflector camber surface 101 is 5mm. By the above structural arrangement, backlight presents the phenomenon that inside and outside are evenly bright, refer to Figure 9 It is shown that the backlight of conventional reflector structure presents the phenomenon that inside and outside are unevenly bright, refer to Figure 10 It is shown.

[0034] Refer to Figure 3 、 Figure 4 And Figure 5 A kind of backlight assembly, including backlight substrate 2, reflector body 1 is arranged on backlight substrate 2.

[0035] For the above example, those skilled in the art should know that, when implementing the above technical solutions, corresponding control chip and other electrical elements are also installed on backlight substrate 2.

[0036] For the above example, those skilled in the art should know that, when implementing the above technical solutions, backlight substrate 2 can be any one of PCB substrate, glass substrate and aluminum substrate.

[0037] As a kind of technical optimization scheme of the utility model, several LED light sources 201 are installed on backlight substrate 2, and at least one LED light source 201 is arranged in the opening of array cup cover structure.

[0038] As a kind of technical optimization scheme of the utility model, backlight substrate 2 is installed and arranged in display housing 3.

[0039] Refer to Figure 6 、 Figure 7 AndFigure 8 The back of the display shell 3 is provided with a plurality of docking blocks 4, and the left and right sides and the upper and lower sides of the display shell 3 are symmetrically provided with two docking blocks 4; the cross section of the docking block 4 is in the shape of L; one end of the docking block 4 is detachably fixedly connected with the display shell 3; and the other end of the docking block 4 is provided with a round hole 401.

[0040] As a technical optimization scheme of the utility model, the round hole 401 can pass through the setting screw 5, the screw 5 is threadedly sleeved with a nut 501, and the two docking blocks 4 can be fixedly connected through the screw 5 and the nut 501. That is, after the two docking blocks 4 are aligned, the corresponding two round holes 401 are aligned, the screw 5 can pass through the two aligned round holes 401 and be screwed into the nut 501 from one end, thereby realizing the fixed connection of the two docking blocks 4 and realizing the connection effect. Since the left and right sides and the upper and lower sides of the display shell 3 are symmetrically provided with two docking blocks 4, a plurality of display shells 3 can realize the operation of mutual combination and splicing, that is, the left and right sides or the upper and lower sides of the display shell 3 can be fixedly connected and arranged, so as to finally meet the flexible and various use requirements.

[0041] As a technical optimization scheme of the utility model, the edge of the round hole 401 is provided with a sinking groove 402, the sinking groove 402 is embedded with a matching magnetic block 6, the side edge of the sinking groove 402 is magnetically connected with the magnetic block 6, both end side edges of the magnetic block 6 are fixedly provided with a buckle block 601, and the buckle block 601 can be inserted into the round hole 401 and buckled with the docking block 4. That is, the two docking blocks 4 can also be provided with the magnetic block 6, and the two corresponding round holes 401 are inserted into the buckle block 601, so as to realize the buckle fixed connection of the two docking blocks 4 and realize the connection effect.

[0042] In the utility model, the working principle of the device is as follows:

[0043] The inner side reflector arc surface 101 and the peripheral reflector arc surface 102 of the reflector body 1 are made of high light surface, the peripheral reflector arc surface 102 adopts an outward convex arc surface, and the inner side reflector arc surface 101 adopts an inward concave arc surface, so that the light of the LED light source 201 can be emitted in a specific partition, the light in different partitions does not interfere with each other, and the overall light emitting uniformity of the backlight is improved.

[0044] Meanwhile, the device can also carry out the combined splicing operation of multiple display housings 3, two docking blocks 4 can be symmetrically installed on the left and right sides and the upper and lower sides of the display housing 3, so that multiple display housings 3 can be combined and spliced, that is, the left and right sides or the upper and lower sides of the display housing 3 can be fixedly connected. That is, when docking, the corresponding two docking blocks 4 are aligned, the screw rod 5 is inserted into the two aligned round holes 401, and the nut 501 is screwed from one end, thereby realizing the fixed connection of the two docking blocks 4, and the subsequent operation is the same, and finally the connection effect of two display housings 3 or multiple display housings 3. Meanwhile, the magnetic attraction block 6 can also be arranged between the two docking blocks 4, and the two corresponding round holes 401 are inserted into the buckle block 601, thereby realizing the buckle fixed connection of the two docking blocks 4, realizing the connection effect, realizing the connection effect of two display housings 3 or multiple display housings 3. Finally, flexible and diverse use requirements are met.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A reflector comprising a reflector body (1), characterized in that The reflector body (1) is provided with an outer frame (103), and the inner part of the outer frame (103) is provided with cup cover structures (104) arranged in an array, and the cup cover structures (104) are correspondingly provided with a plurality of openings (105), the edges of the plurality of openings (105) located in the middle part of the reflector body (1) are provided with inner side reflector curved surfaces (101), and the edges of the plurality of openings (105) adjacent to the outer frame (103) are provided with peripheral reflector curved surfaces (102), and the height of the outer frame (103) is higher than the height of the cup cover structures (104).

2. A reflector according to claim 1, wherein The inner side reflector curved surfaces (101) and the peripheral reflector curved surfaces (102) are both provided as high-brightness surfaces.

3. A reflector according to claim 1, wherein The peripheral reflector curved surfaces (102) are provided as convex curved surfaces, the inner side reflector curved surfaces (101) are provided as concave curved surfaces, the radius of the convex curved surfaces is 4 mm, and the radius of the concave curved surfaces is 5 mm.

4. A backlight assembly, characterized by, The backlight substrate (2) is provided with a plurality of LED light sources (201), and at least one LED light source (201) is arranged in each opening of the array cup cover structure.

5. A backlight assembly according to claim 4, wherein The backlight substrate (2) is arranged in the display shell (3).

6. A backlight assembly according to claim 4, wherein The back part of the display shell (3) is provided with a plurality of docking blocks (4), and the left and right sides and the upper and lower sides of the display shell (3) are symmetrically provided with two docking blocks (4), the cross section of the docking block (4) is in the shape of L, one end of the docking block (4) is detachably fixedly connected with the display shell (3), and the other end of the docking block (4) is provided with a circular hole (401).

7. A backlight assembly according to claim 6, wherein The circular hole (401) can be penetrated by a screw rod (5), the screw rod (5) is threadedly sleeved with a nut (501), and the two docking blocks (4) can be fixedly connected through the screw rod (5) and the nut (501).

8. A backlight assembly according to claim 7, wherein The edge of the circular hole (401) is provided with a sinking groove (402), the sinking groove (402) is embedded with a magnetic block (6) matched arranged, the side edge of the sinking groove (402) is magnetically connected with the magnetic block (6), both end side edges of the magnetic block (6) are fixedly provided with a buckle block (601), and the buckle block (601) can be inserted into the circular hole (401) and buckled with the docking block (4).

9. A backlight assembly according to claim 8, wherein, ​

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