CN212647213U

CN212647213U - Backlight module

Info

Publication number: CN212647213U
Application number: CN202021722232.5U
Authority: CN
Inventors: 谭延群
Original assignee: Luzhou Xinjingshun Photoelectric Co ltd
Current assignee: Luzhou Xinjingshun Photoelectric Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-03-02
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a backlight module, including frame, baffle, through-hole, luminescent plate, reflector plate, light guide plate, lower diffuser plate, lower prism piece, go up prism piece and last diffuser plate, the constant head tank has all been seted up all around to the inner wall of frame, the utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, easy operation is convenient, through the constant head tank that sets up inside the frame, can make each face the condition of skew can not appear when the stack installation, make the connection between each face more stable, the spout has been seted up inside the frame, and with luminescent plate sliding connection inside the spout, conveniently change it under the condition that the light decay appears in the luminescent plate, need not dismantle the face, not only can shorten maintenance duration, and can avoid causing destruction to each face in the maintenance process, change traditional LED banks into integral luminescent plate, can make light source distribution even, the condition that luminance is different can not appear, the quality of product has been guaranteed.

Description

Backlight module

Technical Field

The utility model relates to a module, in particular to backlight unit belongs to backlight unit technical field.

Background

The backlight module is one of the key components of the liquid crystal display panel, and has the functions of supplying sufficient light sources with uniform brightness and distribution to enable the liquid crystal display panel to normally display images, the backlight source is a light source for providing the liquid crystal display panel and 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, three backlight source types of EL, CCFL and LED are mainly adopted, the backlight source type and the direct type are divided into an edge light type and a direct type according to different light source distribution positions, and the edge light type CCFL backlight source becomes the mainstream of the backlight source development along with the continuous development of the LCD module in the directions.

Present backlight unit needs each face coincide to be in the same place when the installation, skew or the insecure phenomenon of coincide can appear in traditional stack mode, and the time of using has been for a long time the condition that can appear the light decay, present backlight unit need all tear down each face when changing the light source and change, not only waste time and energy, and lead to the face impaired easily, traditional light source sets up a set of LED lamp source at the frame top usually, the inhomogeneous phenomenon of light source distribution can appear after the reflector plate reflection, lead to the different condition of display luminance easily, influence the quality of product.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a backlight unit.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a backlight module, which comprises a frame, a baffle, through holes, a luminous plate, a reflector plate, a light guide plate, a lower diffusion plate, a lower prism sheet, an upper prism sheet and an upper diffusion plate, wherein the periphery of the inner wall of the frame is provided with positioning grooves, the bottom of the positioning grooves inside the frame is fixedly connected with the baffle, the baffle is internally provided with a chute, the outer side of the frame is provided with the through holes, the chute is communicated with the through holes, the luminous plate is connected inside the chute in a sliding way, the reflector plate is fixedly connected with the bottom of the frame, the light guide plate is embedded inside the frame and is positioned right above the baffle, the lower diffusion plate is embedded inside the frame and is positioned right above the light guide plate, the lower prism sheet is embedded inside the frame and is positioned right above the lower diffusion plate, the upper, an upper diffusion plate is embedded in the frame and positioned right above the upper prism sheet.

As an optimized proposal of the utility model, the limiting grooves are arranged on both sides of the inner wall of the through hole.

As an optimized scheme of the utility model, the symmetrical fixedly connected with in the luminescent plate outside is with the spacing ball of rubber that spacing groove cooperation was used.

As a preferred scheme of the utility model, the equal fixedly connected with in the outside of light guide plate, lower diffuser plate, lower prism piece, last prism piece and last diffuser plate and the locating piece that the constant head tank cooperation was used.

As an optimized scheme of the utility model, the outside one end fixedly connected with that just keeps away from the spout of luminescent plate draws the handle.

As an optimized scheme of the utility model, the luminescent plate outside just is located one side fixedly connected with connector of pulling the handle.

The utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, easy operation is convenient, through the constant head tank that sets up inside the frame, can make each face the condition of skew can not appear when the stack installation, make the connection between each face more stable, the spout has been seted up inside the frame, and with luminescent plate sliding connection inside the spout, conveniently change it under the condition that the light decay appears in the luminescent plate, need not dismantle the face, not only can shorten maintenance duration, and can avoid causing destruction to each face in the maintenance process, change traditional LED banks into integral luminescent plate, can make light source distribution even, the condition that luminance is different can not appear, the quality of product has been guaranteed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the inside of the frame of the present invention;

fig. 3 is an enlarged view of the position a of the present invention.

In the figure: 1. a frame; 2. positioning a groove; 3. a baffle plate; 4. a chute; 5. a through hole; 6. a limiting groove; 7. a light emitting panel; 8. a limiting ball; 9. pulling a handle; 10. a reflective sheet; 11. a light guide plate; 12. a lower diffuser plate; 13. a lower prism sheet; 14. an upper prism sheet; 15. an upper diffuser plate; 16. and (7) connecting ports.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in FIGS. 1-3, the present invention provides a backlight module, which comprises a frame 1, a baffle 3, a through hole 5, a light-emitting plate 7, a reflector plate 10, a light guide plate 11, a lower diffuser plate 12, a lower prism sheet 13, an upper prism sheet 14 and an upper diffuser plate 15, wherein the periphery of the inner wall of the frame 1 is provided with a positioning groove 2, the bottom of the positioning groove 2 inside the frame 1 is fixedly connected with the baffle 3, the baffle 3 is internally provided with a chute 4, the outer side of the frame 1 is provided with the through hole 5, the chute 4 is communicated with the through hole 5 for conveniently inserting the light-emitting plate 7, the inside of the chute 4 is slidably connected with the light-emitting plate 7, the bottom of the frame 1 is fixedly connected with the reflector plate 10, the light guide plate 11 is embedded inside the frame 1 and is positioned right above the baffle 3, the lower diffuser plate 12 is embedded inside the, an upper prism sheet 14 is mounted in the frame 1 and directly above the lower prism sheet 13, and an upper diffuser plate 15 is mounted in the frame 1 and directly above the upper prism sheet 14.

Furthermore, limiting grooves 6 are formed in two sides of the inner wall of the through hole 5, and the light-emitting plate 7 is limited conveniently.

Further, 7 outside symmetry fixedly connected with of luminescent plate and the spacing ball 8 of rubber that 6 cooperation of spacing grooves were used, convenient and 6 cooperation of spacing grooves are used, make the stable spliced pole frame 1 of luminescent plate 7 inside, avoid the in use slippage.

Furthermore, the outer sides of the light guide plate 11, the lower diffusion plate 12, the lower prism sheet 13, the upper prism sheet 14 and the upper diffusion plate 15 are fixedly connected with positioning blocks used in cooperation with the positioning grooves 2, so that the light guide plate 11, the lower diffusion plate 12, the lower prism sheet 13, the upper prism sheet 14 and the upper diffusion plate 15 are convenient to be not deviated in the process of superposition installation, and connection is more stable.

Furthermore, the outside of the light-emitting plate 7 and the end fixedly connected with the pull handle 9 far away from the sliding groove 4 facilitate the light-emitting plate 7 to be pulled out from the inside of the frame 1 for replacement, and the replacement time is shortened.

Furthermore, a connection port 16 is fixedly connected to one side of the light-emitting panel 7, which is located outside the pull handle 9, so as to be conveniently connected with an external power source, thereby enabling the light-emitting panel 7 to work.

Specifically, when the device is installed, the reflective sheet 10 is fixedly connected to the bottom of the frame 1 through screws, then the light guide plate 11, the lower diffuser plate 12, the lower prism sheet 13 and the upper prism sheet 14 are sequentially stacked and installed inside the frame 1 with reference to the positioning groove 2 inside the frame 1, the light emitting plate 7 is inserted into the chute 4 inside the frame 1 through the through hole 5, when the light emitting plate 7 is inserted into the bottommost end of the chute 4, the spacing balls 8 at both sides of the light emitting plate 7 are clamped into the spacing groove 6 to prevent the light emitting plate 7 from sliding out of the frame 1 during use, the light emitting plate 7 is lightened through the connecting port 16 and an external power cord, a light source is transmitted to the lower diffuser plate 12 under the matching trial of the reflective sheet 10 and the light guide plate 11, the light source is transmitted to the lower prism sheet 13 through the lower diffuser plate 12, the light source is, when the light-emitting plate 7 is degraded, the light-emitting plate 7 can be directly pulled out from the inside of the chute 4 for replacement.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The backlight module is characterized by comprising a frame (1), a baffle (3), through holes (5), a light-emitting plate (7), a reflector plate (10), a light guide plate (11), a lower diffusion plate (12), a lower prism sheet (13), an upper prism sheet (14) and an upper diffusion plate (15), wherein positioning grooves (2) are formed in the periphery of the inner wall of the frame (1), the baffle (3) is fixedly connected to the bottom of the inner wall of the frame (1) and is positioned in the positioning grooves (2), sliding grooves (4) are formed in the baffle (3), the through holes (5) are formed in the outer side of the frame (1), the sliding grooves (4) are communicated with the through holes (5), the light-emitting plate (7) is slidably connected to the inner part of the sliding grooves (4), the reflector plate (10) is fixedly connected to the bottom of the frame (1), and the light guide plate (11) is inlaid in the, frame (1) inside just be located light guide plate (11) and inlay down diffuser plate (12) directly over, frame (1) inside just be located diffuser plate (12) directly over inlay down prism piece (13), frame (1) inside just be located down prism piece (13) directly over inlay and have last prism piece (14), frame (1) inside just be located last prism piece (14) directly over inlay and have last diffuser plate (15).

2. The backlight module according to claim 1, wherein two sides of the inner wall of the through hole (5) are provided with a limiting groove (6).

3. A backlight module according to claim 1, characterized in that the light-emitting plate (7) is symmetrically and fixedly connected with rubber spacing balls (8) which are matched with the spacing grooves (6).

4. The backlight module as claimed in claim 1, wherein the outer sides of the light guide plate (11), the lower diffuser plate (12), the lower prism sheet (13), the upper prism sheet (14) and the upper diffuser plate (15) are fixedly connected with positioning blocks for cooperating with the positioning grooves (2).

5. A backlight module according to claim 1, characterized in that a pull handle (9) is fixedly connected to an end of the light-emitting panel (7) outside and remote from the sliding groove (4).

6. A backlight module according to claim 1, characterized in that a connection port (16) is fixedly connected to the outside of the light-emitting panel (7) at one side of the pull handle (9).