CN214375717U

CN214375717U - Backlight module and display device

Info

Publication number: CN214375717U
Application number: CN202120554428.6U
Authority: CN
Inventors: 邹剑雪; 康韬; 李振乐
Original assignee: Shenzhen KTC Commercial Technology Co Ltd
Current assignee: Shenzhen KTC Commercial Technology Co Ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-08
Anticipated expiration: 2031-03-17

Abstract

The utility model provides a backlight unit and display device, backlight unit, including backplate, framework and lamp plate assembly, offer the cavity that is used for holding lamp plate assembly on the backplate, the framework setting lamp plate assembly around and with backplate fixed connection, the internal surface of framework is provided with the colour conversion layer. The utility model provides a backlight unit compares with prior art, the utility model discloses install the framework all around at lamp plate assembly, set up the colour conversion layer in the framework towards lamp plate assembly's one side, the light of lamp plate assembly transmission is in the framework towards lamp plate assembly's one side reflection, and light is neutralized and is weakened the blue light behind the colour conversion layer, adopts processing formation colour conversion layer in the framework to have replaced pasting the reflector plate all around backlight unit. Need not the hem, it is more convenient to install, accords with humanized and industrial design more.

Description

Backlight module and display device

Technical Field

The utility model belongs to the technical field of lighting apparatus, more specifically say, relate to a backlight module and display device.

Background

The backlight module is one of the key components of the liquid crystal display panel. The function is to provide sufficient brightness and uniformly distributed light source, so that it can normally display image.

The backlight module generally has a problem that the intensity and brightness of blue light need to be reduced or weakened, and at present, two common ways for weakening the intensity and brightness of blue light are provided, wherein one way is to paste a yellow pattern on the periphery of the backlight module, reduce the specific intensity and brightness of blue light according to needs, and comprehensively consider the beautiful situation to design the shape of the yellow pattern to be pasted on the periphery of the backlight module, and the shape of the yellow pattern is designed into a spot shape, a plum blossom shape, a hexagonal shape and the like.

In another way, a reflective sheet is installed in the backlight module, which is usually an integral reflective sheet, and the yellow patterns mentioned above are attached to the periphery of the integral reflective sheet, so that the yellow patterns on the reflective sheet are used to weaken the intensity and brightness of blue light. The shape of the integrated reflector plate is very similar to that of the medical tray, particularly the medical iron long tray, and the edge of the integrated reflector plate is lapped on the frame. The first mode, yellow color pattern need a reliable carrier, and the integral type reflector plate in the second mode can regard as the carrier of yellow color pattern, but the integral type reflector plate needs to carry out the hem processing earlier when assembling on the frame, and this has just caused difficult and loaded down with trivial details of installation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a backlight unit and display device to solve the loaded down with trivial details problem of reflector plate installation that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a backlight module, includes backplate, framework and lamp plate assembly, offer on the backplate and be used for the holding the cavity of lamp plate assembly, the framework sets up around the lamp plate assembly and with backplate fixed connection, the internal surface of framework is provided with the colour conversion layer.

Furthermore, the inner edge of the back plate is recessed to form an accommodating groove for accommodating the frame body.

Further, be provided with the muscle position in the framework, the muscle position is located the framework orientation one side of lamp plate assembly just the tip butt of muscle position is in the upper surface of lamp plate assembly, lamp plate assembly is in by the centre gripping the muscle position with between the bottom surface of backplate.

Further, the framework includes four frames of dismantling the connection, the muscle position sets up the orientation of frame the one side of lamp plate assembly, the frame cavity.

Further, the frame is including setting up support and setting in the accepting groove are in the support orientation the reflecting plate of lamp plate assembly one side, support cavity, the reflecting plate orientation one side of lamp plate assembly sets up the colour conversion layer, the reflecting plate orientation the tip that lamp plate assembly extends forms the muscle position.

Furthermore, a step surface is formed between the bottom surface of the accommodating groove and the bottom surface of the middle part of the back plate, the bottom surface of the accommodating groove is lower than the bottom surface of the middle part of the back plate, and an inclined surface for transition is formed between the bottom surface of the accommodating groove and the bottom surface of the middle part of the back plate.

Furthermore, the connection part of the accommodating groove and the inclined surface and the connection part of the inclined surface and the inclined surface are in smooth transition.

Furthermore, the frame body and the back plate are provided with clamping pieces used for clamping the frame body and the back plate mutually.

Furthermore, the clamping piece comprises a buckle and/or a clamping groove arranged on the frame body, and the clamping piece also comprises a clamping groove and/or a buckle arranged on the back plate.

Another object of the present invention is to provide a display device, including the above backlight module.

The utility model provides a backlight module's beneficial effect lies in: compared with the prior art, the utility model discloses at lamp plate assembly install the framework all around, with framework and lamp plate assembly install in the backplate cavity, set up the colour conversion layer in the framework towards lamp plate assembly's one side, the light of lamp plate assembly transmission is in the framework towards lamp plate assembly's one side reflection, and light neutralizes and weakens the blue light behind the colour conversion layer, adopts to set up the colour conversion layer in the framework and has replaced pasting the reflector plate around backlight unit. Need not the hem, it is more convenient to install, accords with humanized and industrial design more.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is an exploded view of a backlight module in the prior art;

FIG. 2 is a schematic structural diagram of an integrated reflector in the prior art;

fig. 3 is an exploded schematic view of a backlight module according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic cross-sectional structural diagram of a backlight module according to an embodiment of the present invention, and a part of the structure is not shown;

fig. 6 is a schematic structural diagram of a frame body according to an embodiment of the present invention;

fig. 7 is an enlarged view of a portion B in fig. 6.

Wherein, in the drawings, the reference numerals are mainly as follows:

1. a frame; 2. a reflective sheet;

3. a back plate;

4. a frame body; 41. a frame; 411. a support; 412. a reflective plate; 413. a rib position;

5. a lamp panel assembly; 6. an accommodating groove; 7. buckling; 8. a clamping groove.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a backlight module according to an embodiment of the present invention will be described. Backlight unit, including backplate 3, framework 4 and lamp plate assembly 5, seted up the cavity on the backplate 3, lamp plate assembly 5 sets up in the cavity. Frame 4 surrounds lamp plate assembly 5 all around, and frame 4 and 3 fixed connection of backplate, frame 4 are provided with the colour conversion layer towards lamp plate assembly 5's one side, and the colour conversion layer is used for offsetting blue light. The back plate 3 is a hardware back plate 3, and the color conversion layer on the inner surface of the frame body 4 is processed into a yellow pattern in a coating or printing or hot melting mode, so that the inner surface of the frame body 4 has a certain color conversion effect of reflecting light and weakening blue light.

The utility model provides a backlight module, compared with the prior art, install framework 4 around lamp plate assembly 5, install framework 4 and lamp plate assembly 5 in backplate 3 internal cavity, set up the colour conversion layer in framework 4 towards lamp plate assembly 5's one side, the light of lamp plate assembly 5 transmission is reflected at framework 4 towards lamp plate assembly 5's one side, light is neutralized, weakened to the blue light behind the colour conversion layer, the adoption sets up the colour conversion layer on framework 4 and has replaced pasting reflector plate 2 around backlight module. Need not the hem, it is more convenient to install, accords with humanized and industrial design more.

Referring to fig. 1 and 2, the currently used reflector 2 needs to be bent into a medical long disc shape, and is overlapped on the frame 1, the reflector 2 needs to be bent eight times, at first, four corners need to be cut, then four sides need to be bent for the first time, and finally four sides of each bent are bent for the second time, so that the operation is very complicated, and the processing and installation costs are increased.

Specifically, referring to fig. 3 to 7, an accommodating groove 6 is formed in the inner edge of the back plate 3 in a recessed manner, wherein the frame 4 is accommodated in the accommodating groove 6, a rib position 413 is arranged on the frame 4, wherein the rib position 413 is arranged on one surface of the frame 4 facing the lamp panel assembly 5, an end of the rib position 413 abuts against an upper surface of the lamp panel assembly 5, the lamp panel assembly 5 is clamped between the rib position 413 and the back plate 3, the upper surface of the lamp panel assembly 5 abuts against the end of the rib position 413, and the bottom surface of the lamp panel assembly 5 contacts with the bottom surface of the back plate 3. Muscle position 413 is used for spacing with lamp plate assembly 5 to when installation frame 41, aim at frame 41 and lamp plate assembly 5, improve framework 4 and lamp plate assembly 5's installation stability simultaneously.

Referring to fig. 3 to 7, in the present embodiment, the frame 4 includes four detachably connected frames 41, wherein the rib portions 413 are disposed on a surface of the frame 41 facing the lamp panel assembly 5, the frame 41 is of a hollow design, so as to reduce the weight of the frame 41, further, the frame 41 is designed as an integrally formed bracket 411 and a reflective plate 412, wherein the bracket 411 is hollow, the reflective plate 412 is disposed on a surface facing the lamp panel assembly 5, and the aforementioned color conversion layer is disposed on the reflective plate 412, so that the bracket 411 and the reflective plate 412 are designed to ingeniously avoid a situation that the reflector 2 needs to be folded. Wherein the reflection plate 412 is disposed slantingly and the top of the bracket 411 is smaller than the bottom of the bracket 411. The aforementioned rib portions 413 are located at the end of the reflector 412 extending towards the light panel assembly 5. The color conversion layer is arranged on the reflecting plate 412, the lamp panel component 5 emits light and then reflects the light through the reflecting plate 412, the light is neutralized through the color conversion layer and then emitted, and blue light in the light is greatly reduced.

Referring to fig. 3 to 7, in the present embodiment, the receiving slot 6 is used for receiving the frame 4, the frame 4 includes four detachably linked frames 41, the frames 41 specifically include a bracket 411 and a reflective plate 412, the bracket 411 is received in the receiving slot 6, wherein the receiving slot 6 and the bottom surface of the middle portion of the back plate 3 form a step shape, the bottom surface of the receiving slot 6 is located on the lower side of the step shape, and the bottom surface of the middle portion of the back plate 3 is located on the upper side of the step shape. The installation space of the backboard 3 and the lamp panel assembly 5 is reasonably utilized, so that the installation of the backboard 3, the frame body 4 and the lamp panel assembly 5 is more compact and reasonable. In the present embodiment, the frame 4 includes at least one of engineering plastic, organic glass, polystyrene, glass fiber, and polyacrylate organic-inorganic nanocomposite. The color conversion layer at least comprises one of yellow ink, fluorescent powder particles and quantum dot particles.

Referring to fig. 3 to 7, in addition, the side surface of the back plate 3 is attached to the surface of the frame body 4 away from the lamp panel assembly 5, and in order to improve the connection stability between the back plate 3 and the frame body 4, clamping members are arranged on the frame body 4 and the back plate 3, and the clamping members are used for clamping the frame body 4 and the back plate 3. The clamping members used in this embodiment are the buckle 7 disposed on the frame 4 and the clamping groove disposed on the backboard 3, the buckle 7 may be disposed on the backboard 3, the clamping groove disposed on the frame 4, or both the buckle 7 and the clamping groove disposed on the backboard 3 and the frame 4, as long as the clamping between the buckle 7 on the backboard 3 and the clamping groove disposed on the frame 4 is ensured, and the buckle 7 on the frame 4 and the clamping groove disposed on the backboard 3 are engaged with each other.

The utility model also provides a display device, display device includes above-mentioned backlight unit.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Backlight unit, its characterized in that includes:

the back plate is provided with a cavity;

the lamp panel assembly is arranged in the cavity and used for providing a light source; and

the lamp panel assembly comprises a frame body, the frame body is arranged in the cavity and surrounds the periphery of the lamp panel assembly, the orientation of the frame body is arranged on one surface of the lamp panel assembly, and a color conversion layer used for offsetting blue light is arranged on the one surface of the lamp panel assembly.

2. The backlight module of claim 1, wherein: the edge of the cavity is recessed to form an accommodating groove for accommodating the frame body.

3. The backlight module of claim 2, wherein: be provided with the muscle position in the framework, the muscle position is located the framework orientation lamp plate assembly's one side just the tip butt of muscle position is in lamp plate assembly's upper surface, lamp plate assembly is in by the centre gripping the muscle position with between the bottom surface of cavity.

4. The backlight module of claim 3, wherein: the framework includes four frames of dismantling the connection, the muscle position sets up the orientation of frame the one side of lamp plate assembly, the frame is hollow structure.

5. The backlight module of claim 4, wherein: the frame is including setting up support and setting in the accepting groove are in the support orientation the reflecting plate of lamp plate assembly one side, support cavity, the reflecting plate orientation one side of lamp plate assembly sets up the colour conversion layer, the reflecting plate orientation the tip that lamp plate assembly extends forms the muscle position.

6. The backlight module of claim 2, wherein: the bottom surface of the containing groove and the bottom surface of the middle part of the cavity form a step surface, the bottom surface of the containing groove is lower than the bottom surface of the middle part of the cavity, and an inclined surface for transition is formed between the bottom surface of the containing groove and the bottom surface of the middle part of the back plate.

7. The backlight module of claim 6, wherein: the joint of the containing groove and the inclined plane and the joint of the inclined plane and the bottom surface of the middle part of the cavity are in smooth transition.

8. The backlight module of claim 1, wherein: the frame body with be provided with on the backplate and be used for the frame body with the joint spare of backplate mutual joint.

9. The backlight module of claim 8, wherein: the clamping piece comprises a buckle and/or a clamping groove arranged on the frame body and a clamping groove and/or a buckle arranged on the back plate.

10. A display device, characterized in that: comprising a backlight module as claimed in any one of claims 1 to 9.