CN214751222U

CN214751222U - Backlight module with light guide plate combined structure

Info

Publication number: CN214751222U
Application number: CN202120212404.2U
Authority: CN
Inventors: 张椿林; 罗成芬; 谢朴杭; 吕连明; 袁志华; 谭炳幸
Original assignee: Foshan Defei Sheng Optoelectronic Technology Co ltd
Current assignee: Foshan Defei Sheng Optoelectronic Technology Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-16
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a light guide plate integrated configuration backlight module, the protective housing comprises a protective housing, the internally mounted of protective housing has backlight unit, fixed subassembly is installed to the bottom of protective housing, backlight unit includes two fixed covers, light source board, light guide plate, reflector plate, fixed cover sets up on the inner wall of protective housing, the outside of fixed cover and the inner wall in close contact with of protective housing, light source board, light guide plate and reflector plate all set up in the inside of fixed cover, are located left fixed sheathe in and install the locating piece, are located the fixed constant head tank that is provided with on sheathe in on right side. The utility model discloses make backlight unit dismouting of being convenient for, the dismouting is got up fairly simplely, and not only labour saving and time saving has reduced staff's working strength moreover to backlight unit sets up in the inside of protecting sheathing, when the transportation, avoids backlight unit to receive the collision and the damage appears, has improved backlight unit's life, brings very big facility for the user.

Description

Backlight module with light guide plate combined structure

Technical Field

The utility model relates to the field of lighting technology, specifically a light guide plate integrated configuration backlight unit.

Background

The light guide plate is characterized in that light guide points are printed on the bottom surface of an optical acrylic plate by using an optical acrylic/PC plate and then using a high-tech material with extremely high refractive index and no light absorption through laser engraving, V-shaped cross grid engraving and UV screen printing technologies. The optical-grade acrylic sheet is used for absorbing the light emitted from the lamp to stay on the surface of the optical-grade acrylic sheet, when the light irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is damaged and is emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The light source, the light guide plate and the reflector plate form a backlight source, when light emitted by the backlight source irradiates the liquid crystal panel, the light can upwards penetrate through the lower polarizer plate, the polarization direction of the light can be changed according to own mechanism when different liquid crystal panels are used, then the light contacts the color filter plate to generate color, and finally the color is incident to the upper polarizer plate. After the polarization direction of the light is converted by the liquid crystal, part of the light can be emitted, part of the light can be absorbed, and each pixel on the whole liquid crystal panel can respectively determine the intensity of the emitted light, so that an image is generated.

At present, when a common backlight module on the market is used, the backlight module is not convenient to disassemble and assemble, the disassembling and assembling are complex, time and labor are wasted, the working strength of workers is increased, and the backlight module is easy to collide and is damaged when being transported, so that the service life of the backlight module is influenced, great inconvenience is brought to a user, and therefore the backlight module with the light guide plate combined structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light guide plate integrated configuration backlight module 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: a backlight module with a light guide plate combined structure comprises a protective shell, wherein a backlight module is arranged in the protective shell, and a fixing assembly is arranged at the bottom of the protective shell;

the backlight module comprises two fixing sleeves, a light source plate, a light guide plate and a reflector plate, wherein the fixing sleeves are arranged on the inner wall of the protective shell, the outer sides of the fixing sleeves are in close contact with the inner wall of the protective shell, the light source plate, the light guide plate and the reflector plate are all arranged in the fixing sleeves, a positioning block is arranged on the fixing sleeve on the left side, a positioning groove is arranged on the fixing sleeve on the right side, one side, close to the positioning groove, of the positioning block penetrates through the positioning groove and extends to the inside of the positioning groove, a patch light source is arranged at the bottom of the light source plate, first limiting blocks are arranged on the left side and the right side of the light source plate, a first limiting groove is arranged on the inner surface of the fixing sleeve, one side, away from the light source plate, of the first limiting block penetrates through the first limiting groove and extends to the inside of the first limiting groove, second limiting blocks are arranged on the left side and the right side of the light guide plate, and a second limiting groove is arranged on the inner surface of the fixing sleeve, one side, away from the light guide plate, of the second limiting block penetrates through the second limiting groove and extends into the second limiting groove, third limiting blocks are mounted on the left side and the right side of the reflecting sheet, a third limiting groove is formed in the inner surface of the fixing sleeve, one side, away from the reflecting sheet, of the third limiting block penetrates through the third limiting groove and extends into the third limiting groove, bolts are arranged on the outer side of the protective shell, and the protective shell is fixedly connected with the fixing sleeve through the bolts;

the fixed subassembly is including fixed cover, fixed cover sets up the opening part in the protective housing bottom, the inside embedding of fixed cover has optical diaphragm, the top of fixed cover is provided with the thread bush, the bottom of protective housing is provided with the thread groove, the thread groove is run through and extend to its inside at the top of thread bush.

Preferably, the fixed block is installed at the top of light source board, the top of protective housing inner wall is provided with the fixed slot, the top of fixed block runs through the fixed slot and extends to its inside.

Preferably, the patch light source is configured as an LED patch light source.

Preferably, the outer surface of the protective shell is provided with a buffer layer.

Preferably, handles are mounted on the left side and the right side of the fixed cover.

Preferably, the stop collar is installed to the bottom of fixed cover, the top of fixed cover is provided with the spread groove, the bottom of stop collar runs through the spread groove and extends to its inside.

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

1. the utility model discloses a protective housing, backlight unit, fixed cover, the light source board, the light guide plate, the reflector plate, the locating piece, the constant head tank, the paster light source, first stopper, first spacing groove, the second stopper, the second spacing groove, the third stopper, the third spacing groove, the bolt, fixed subassembly, fixed cover, the optics diaphragm, thread bush and thread groove mutually support, make backlight unit dismouting of being convenient for, the dismouting is got up fairly simplely, not only labour saving and time saving, and staff's working strength has been reduced, and backlight unit sets up the inside at the protective housing, when the transportation, avoid backlight unit to receive the collision and appear damaging, the life of backlight unit is improved, bring very big facility for the user.

2. The utility model discloses a fixed block and fixed slot mutually support, have played the effect of going on fixing a position the light source board, mutually support through stop collar and spacing groove for fixed cover is connected inseparabler with fixed cover.

Drawings

FIG. 1 is a sectional view of the front view of the present invention;

FIG. 2 is an enlarged view of a portion of A-A of FIG. 1 according to the present invention;

fig. 3 is a structural section view of the top view of the fixing sleeve of the present invention;

fig. 4 is a partial enlarged view of B-B in fig. 3 according to the present invention.

In the figure: 1 protective housing, 2 backlight unit, 21 fixed cover, 22 light source board, 23 light guide plate, 24 reflector plate, 25 locating pieces, 26 constant head tank, 27 paster light source, 28 first stopper, 29 first spacing groove, 210 second stopper, 211 second spacing groove, 212 third stopper, 213 third spacing groove, 214 bolt, 3 fixed subassembly, 31 fixed cover, 32 optics diaphragm, 33 thread bush, 34 thread groove, 4 fixed block, 5 fixed slots, 6 spacing bushes, 7 spacing grooves.

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. 1-4, a backlight module with a light guide plate assembly structure includes a protective casing 1, a backlight module 2 is installed inside the protective casing 1, and a fixing assembly 3 is installed at the bottom of the protective casing 1.

The backlight module 2 comprises two fixing sleeves 21, a light source plate 22, a light guide plate 23 and a reflector plate 24, wherein the fixing sleeves 21 are arranged on the inner wall of the protective shell 1, the outer side of the fixing sleeves 21 is in close contact with the inner wall of the protective shell 1, the light source plate 22, the light guide plate 23 and the reflector plate 24 are all arranged inside the fixing sleeves 21, a positioning block 25 is arranged on the fixing sleeve 21 on the left side, a positioning groove 26 is arranged on the fixing sleeve 21 on the right side, one side, close to the positioning groove 26, of the positioning block 25 penetrates through the positioning groove 26 and extends into the positioning groove 26, a patch light source 27 is arranged at the bottom of the light source plate 22, first limiting blocks 28 are arranged on the left side and the right side of the light source plate 22, a first limiting groove 29 is arranged on the inner surface of the fixing sleeve 21, one side, far away from the light source plate 22, of the first limiting groove 29 penetrates through the first limiting groove 29 and extends into the first limiting groove, and second limiting blocks 210 are arranged on the left side and the right side of the light guide plate 23, the internal surface of fixed cover 21 is provided with second spacing groove 211, the second spacing block 210 is kept away from one side of light guide plate 23 and is run through second spacing groove 211 and extend to its inside, third spacing block 212 is all installed to the left and right sides of reflector plate 24, the internal surface of fixed cover 21 is provided with third spacing groove 213, one side that reflector plate 24 was kept away from to third spacing block 212 runs through third spacing groove 213 and extends to its inside, the outside of protective housing 1 is provided with bolt 214, protective housing 1 passes through bolt 214 and fixed cover 21 fixed connection.

The fixing assembly 3 comprises a fixing cover 31, the fixing cover 31 is arranged at an opening at the bottom of the protective shell 1, an optical diaphragm 32 is embedded in the fixing cover 31, a threaded sleeve 33 is arranged at the top of the fixing cover 31, a threaded groove 34 is arranged at the bottom of the protective shell 1, and the top of the threaded sleeve 33 penetrates through the threaded groove 34 and extends to the inside of the threaded sleeve 33.

When concrete implementation, fixed block 4 is installed at the top of light source board 22, and the top of 1 inner wall of protective housing is provided with fixed slot 5, and fixed slot 5 and inside extending to is run through at the top of fixed block 4, mutually supports through fixed block 4 and fixed slot 5, has played the effect of fixing a position light source board 22.

In one embodiment, the patch light source 27 is configured as an LED patch light source.

In specific implementation, the outer surface of the protective shell 1 is provided with a buffer layer.

In specific implementation, the left and right sides of the fixing cover 31 are provided with handles.

When the concrete implementation, stop collar 6 is installed to the bottom of fixed cover 21, and the top of fixed cover 31 is provided with spread groove 7, and the bottom of stop collar 6 runs through spread groove 7 and extends to its inside, mutually supports through stop collar 6 and spread groove 7 for fixed cover 21 is connected inseparabler with fixed cover 31.

When in use, the protective case 1, the backlight module 2, the fixing cases 21, the light source plate 22, the light guide plate 23, the reflective sheet 24, the positioning block 25, the positioning groove 26, the patch light source 27, the first limiting block 28, the first limiting groove 29, the second limiting block 210, the second limiting groove 211, the third limiting block 212, the third limiting groove 213, the bolt 214, the fixing component 3, the fixing cover 31, the optical membrane 32, the thread bush 33 and the thread groove 34 are mutually matched, the light source plate 22, the light guide plate 23 and the reflective sheet 24 are all arranged at the position between the two fixing cases 21, the bolt 214 is detached only, then the fixing case 31 is rotated to take out the fixing case 21 from the protective case 1, then the two fixing cases 21 are separated to take out the light source plate 22, the light guide plate 23 and the reflective sheet 24, so that the backlight module 2 is convenient to disassemble and easy to disassemble, not only saves labor, but also reduces the working strength of workers, and backlight unit 2 sets up in the inside of protecting sheathing 1, when the transportation, avoids backlight unit 2 to receive the collision and the damage appears, has improved backlight unit 2's life, brings very big facility for the user.

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. A backlight module with a light guide plate combined structure is characterized in that: the backlight module comprises a protective shell (1), wherein a backlight module (2) is arranged in the protective shell (1), and a fixing assembly (3) is arranged at the bottom of the protective shell (1);

backlight unit (2) includes two fixed covers (21), light source board (22), light guide plate (23), reflector plate (24), fixed cover (21) sets up on the inner wall of protective housing (1), the outside of fixed cover (21) and the inner wall in close contact with of protective housing (1), light source board (22), light guide plate (23) and reflector plate (24) all set up the inside at fixed cover (21), are located and install locating piece (25) on left fixed cover (21), are located and are provided with constant head tank (26) on right fixed cover (21), one side that locating piece (25) are close to constant head tank (26) runs through constant head tank (26) and extend to its inside, the bottom of light source board (22) is provided with paster light source (27), first stopper (28) are all installed to the left and right sides of light source board (22), the internal surface of fixed cover (21) is provided with first spacing groove (29), one side of the first limiting block (28) far away from the light source plate (22) penetrates through the first limiting groove (29) and extends into the first limiting groove, the left side and the right side of the light guide plate (23) are respectively provided with a second limiting block (210), the inner surface of the fixed sleeve (21) is provided with a second limiting groove (211), one side of the second limiting block (210) far away from the light guide plate (23) penetrates through the second limiting groove (211) and extends into the second limiting groove, the left side and the right side of the reflector plate (24) are both provided with a third limiting block (212), the inner surface of the fixed sleeve (21) is provided with a third limiting groove (213), one side of the third limiting block (212) far away from the reflector plate (24) penetrates through the third limiting groove (213) and extends into the interior of the third limiting groove, the outer side of the protective shell (1) is provided with a bolt (214), and the protective shell (1) is fixedly connected with the fixed sleeve (21) through the bolt (214);

fixed subassembly (3) are including fixed cover (31), fixed cover (31) set up the opening part in protective housing (1) bottom, the inside embedding of fixed cover (31) has optical diaphragm (32), the top of fixed cover (31) is provided with thread bush (33), the bottom of protective housing (1) is provided with thread groove (34), thread groove (34) are run through and extend to its inside in the top of thread bush (33).

2. The backlight module of claim 1, wherein: fixed block (4) are installed at the top of light source board (22), the top of protective housing (1) inner wall is provided with fixed slot (5), the top of fixed block (4) runs through fixed slot (5) and extends to its inside.

3. The backlight module of claim 1, wherein: the patch light source (27) is arranged as an LED patch light source.

4. The backlight module of claim 1, wherein: the outer surface of the protective shell (1) is provided with a buffer layer.

5. The backlight module of claim 1, wherein: handles are mounted on the left side and the right side of the fixed cover (31).

6. The backlight module of claim 1, wherein: stop collar (6) are installed to the bottom of fixed cover (21), the top of fixed cover (31) is provided with spread groove (7), the bottom of stop collar (6) runs through spread groove (7) and extends to its inside.