CN212694224U

CN212694224U - Novel backlight module

Info

Publication number: CN212694224U
Application number: CN202021929275.0U
Authority: CN
Inventors: 尹研; 付卫斌; 龙帅; 杨红霞; 杨旭; 杨双锋; 王连文
Original assignee: Chongqing Hanbo Photoelectric Co ltd
Current assignee: Chongqing Hanbo Photoelectric Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-03-12
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to the technical field of backlight modules, in particular to a novel backlight module, which comprises a back plate and an upper cover, wherein the bottom of the left side in the back plate is provided with a reflector plate, a light guide plate is arranged above the reflector plate, a lower diffusion is arranged above the light guide plate, a brightness enhancement film is arranged above the lower diffusion, an upper diffusion is arranged above the brightness enhancement film, the bottom of the right side in the back plate is provided with a light bar, the middle part of the light bar is provided with an LED lamp tube, the LED lamp tube is fixedly connected with the inner wall of the light bar, the front side and the rear side of the light bar are fixedly connected with sliding blocks, at present, most of the light bar assemblies of the backlight module are usually pasted by colloids, the colloids are easily touched by workers in the backlight module in the production process, thus causing the generation of white spots, white shadows and other defective products, bringing, increasing the cost.

Description

Novel backlight module

Technical Field

The utility model relates to a backlight unit technical field specifically is a novel backlight unit.

Background

The backlight module is one of the key components of the liquid crystal display panel. The function is to provide sufficient brightness and light source with uniform distribution, so that the image can be displayed normally. The backlight is a light source that provides the LCD panel. Mainly comprises a light source, a light guide plate, an optical film, a plastic frame and the like. The backlight source has the characteristics of high brightness, long service life, uniform light emission and the like. At present, there are three types of backlight sources, i.e., EL, CCFL and LED, which are classified into edge type and direct type (bottom backlight type) according to the distribution position of the light source. As LCD modules continue to develop in brighter, lighter, and thinner directions, edge-lit CCFL backlights become the mainstream of backlight development.

At present, most of backlight module's lamp strip equipment all uses the colloid to paste usually, and these colloids are touched the backlight module by the staff easily in manufacturing process, cause the production of defective products such as white point, white shadow, bring very big inconvenience when repairing in the later stage, and the colloid probably can make the light guide plate scrap when pasting modules such as light guide plate simultaneously, the increase cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel backlight unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel backlight module, including backplate and upper cover, left side bottom is provided with the reflector plate in the backplate, the reflector plate top is provided with the light guide plate, the light guide plate top is provided with diffusion down, the diffusion top is provided with the membrane of adding lustre to down, the membrane top of adding lustre to is provided with diffusion, right side bottom is provided with the lamp strip in the backplate, the lamp strip middle part is provided with the LED fluorescent tube, the inner wall fixed connection of LED fluorescent tube and lamp strip, both sides fixedly connected with slider around the lamp strip, backplate right side inner wall is provided with the slide, slider and slide sliding connection, lamp strip and backplate right side inner wall sliding connection, fixedly connected with fixture block on the backplate outer wall all around, the upper cover sets up in the backplate top, upper cover edge below is provided with the buckle, buckle and fixture block joint, upper cover and.

Preferably, the support frames are arranged at the front end and the rear end of the slide way, and the support frames are connected with the end part of the slide way in a sliding mode.

Preferably, the quantity of fixture block is ten, and the backplate is long limit of outer wall all around is provided with three fixture block, and the backplate is the minor face of outer wall all around is provided with two fixture blocks, and the quantity of the buckle at upper cover edge corresponds with the quantity of fixture block, and the buckle quantity of upper cover edge below is ten, and the buckle corresponds with the distribution of fixture block.

Preferably, the inner wall of the lamp strip is provided with a reflecting layer, the lamp strip is fixed left and right through a sliding block, the upper part of the lamp strip is in contact with the bottom of the support, and the LED lamp tube is parallel and level to the light guide plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through slide and slider installation lamp strip, saved the step that the lamp strip was pasted to the colloid, can not appear the colloid and lead to the fact negative effects to the backplate equipment in making backplate assembling process, avoid the colloid to adhere to the light guide plate and cause the white shadow phenomenon, adhere to other modules and cause white point phenomenon etc. have reduced the quantity of defective products, practice thrift the cost.

2. The lamp strip passes through slide sliding connection on slider and the backplate, directly slips into the slide bottom, makes the lamp strip fixed about on the backplate through the slider, and the back is accomplished with the backplate joint to the upper cover, supports the frame and supports the lamp strip upside along the slide both ends, prevents that the lamp strip from going on the activity from top to bottom, has good fixed function to the lamp strip that does not bond with the colloid.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the back plate of the present invention;

fig. 3 is the utility model discloses lamp strip connection structure schematic diagram.

In the figure: 1. backplate, 11, fixture block, 12, slide, 2, reflector plate, 3, light guide plate, 4, down diffusion, 5, the membrane that adds lustre to, 6, upward diffusion, 7, lamp strip, 71, LED fluorescent tube, 72, slider, 8, upper cover, 81, support the frame, 82, buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a novel backlight module comprises a back plate 1 and an upper cover 8, wherein a reflector plate 2 is arranged at the bottom of the left side in the back plate 1, a light guide plate 3 is arranged above the reflector plate 2, a lower diffusion 4 is arranged above the light guide plate 3, a brightness enhancement film 5 is arranged above the lower diffusion 4, an upper diffusion 6 is arranged above the brightness enhancement film 5, a light bar 7 is arranged at the bottom of the right side in the back plate 1, an LED lamp tube 71 is arranged in the middle of the light bar 7, the LED lamp tube 71 is fixedly connected with the inner wall of the light bar 7, sliding blocks 72 are fixedly connected with the front side and the rear side of the light bar 7, a sliding way 12 is arranged on the inner wall of the right side of the back plate 1, the sliding blocks 72 are slidably connected with the sliding way 12, the light bar 7 is slidably connected with the inner wall of the right side of the back plate 1, clamping blocks 11, the middle part of the right side of the upper cover 8 is provided with a support frame 81, and the support frame 81 is connected with the inner wall of the right side of the back plate 1 in a sliding manner.

The support frames 81 are arranged at the front end and the rear end of the slideway 12, and the support frames 81 are connected with the end part of the slideway 12 in a sliding way.

The number of the fixture blocks 11 is ten, the long edges of the peripheral outer wall of the back plate 1 are provided with three fixture blocks 11, the short edges of the peripheral outer wall of the back plate 1 are provided with two fixture blocks, the number of the buckles 82 on the edge of the upper cover 8 corresponds to the number of the fixture blocks 11, the number of the buckles 82 below the edge of the upper cover 8 is ten, and the buckles 82 correspond to the distribution of the fixture blocks 11.

The inner wall of the lamp strip 7 is provided with a reflecting layer, the lamp strip 7 is fixed left and right through the sliding block 72, the upper part of the lamp strip 7 is contacted with the bottom of the support frame 81, and the LED lamp tube 71 is flush with the light guide plate 3.

The working principle is as follows: horizontally placing a backboard 1, aligning sliding blocks 72 at the left side and the right side of a light bar 7 with a slideway 12, sliding the light bar 7 into the bottom of the backboard 1 along the slideway 12, placing a reflector plate 2 into the bottom of the left side of the backboard 1, placing a light guide plate 3 above the reflector plate 2, laying a lower diffusion plate 4 above the light guide plate 3, placing a brightness enhancement film 5 above the lower diffusion plate 4, placing an upper diffusion plate 6 above the brightness enhancement film 5, laying a backlight module in order, enabling the module positioned at the upper layer to completely cover the module positioned at the lower layer, at the moment, completing the assembly of the backlight module inside the backboard 1, taking an upper cover 8 above the backboard 1, aligning two abutting blocks 81 with two ends of the slideway 12, enabling the upper cover 8 to be positioned right above the backboard 1, pressing the upper cover 8 downwards, enabling the lower edge of the upper cover 8 to wrap the peripheral outer wall of the backboard 1, continuously pressing the upper cover 8 downwards, enabling a buckle 82 to be clamped with a clamping block, whether ten buckles 82 are completely clamped with the fixture block 11 or not is detected, and if the buckles 82 are not completely clamped with the fixture block 11, the buckles 82 are extruded to be completely clamped.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel backlight unit, includes backplate (1) and upper cover (8), its characterized in that: the LED backlight module is characterized in that a reflector plate (2) is arranged at the bottom of the left side in a back plate (1), a light guide plate (3) is arranged above the reflector plate (2), a lower diffusion plate (4) is arranged above the light guide plate (3), a brightness enhancement film (5) is arranged above the lower diffusion plate (4), an upper diffusion plate (6) is arranged above the brightness enhancement film (5), a light bar (7) is arranged at the bottom of the right side in the back plate (1), an LED lamp tube (71) is arranged in the middle of the light bar (7), the LED lamp tube (71) is fixedly connected with the inner wall of the light bar (7), sliding blocks (72) are fixedly connected to the front side and the rear side of the light bar (7), a sliding way (12) is arranged on the inner wall of the right side of the back plate (1), the sliding blocks (11) are fixedly connected to the outer wall of the periphery of the back plate (, buckle (82) are arranged below the edge of upper cover (8), buckle (82) and clamping block (11) are clamped, upper cover (8) and backboard (1) are clamped, support frame (81) is arranged in the middle of the right side of upper cover (8), and support frame (81) and backboard (1) right side inner wall sliding connection.

2. The novel backlight module according to claim 1, wherein: the support frames (81) are arranged at the front end and the rear end of the slide way (12), and the support frames (81) are connected with the end part of the slide way (12) in a sliding mode.

3. The novel backlight module according to claim 1, wherein: the number of the clamping blocks (11) is ten, the long edges of the peripheral outer wall of the back plate (1) are provided with three clamping blocks (11), the short edges of the peripheral outer wall of the back plate (1) are provided with two clamping blocks, the number of the clamping buckles (82) on the edge of the upper cover (8) corresponds to the number of the clamping blocks (11), the number of the clamping buckles (82) on the lower portion of the edge of the upper cover (8) is ten, and the clamping buckles (82) correspond to the distribution of the clamping blocks (11).

4. The novel backlight module according to claim 1, wherein: the inner wall of the lamp strip (7) is provided with a reflecting layer, the lamp strip (7) is fixed left and right through the sliding block (72), the upper part of the lamp strip (7) is in contact with the bottom of the support frame (81), and the LED lamp tube (71) and the light guide plate (3) are kept flush.