CN217060704U - Side-in type backlight module - Google Patents

Abstract

The utility model discloses a side-in type backlight module, which comprises a back cavity, a side-in type light source, a light scattering mechanism and a front frame, wherein the light scattering mechanism is arranged in the back cavity, the front frame is fixed on the back cavity, and the light scattering mechanism is fixed in the back cavity; the side-entry light source is fixed on the inner side wall of the back cavity and emits light towards the light scattering mechanism; preceding frame is gluey indisputable body structure, preceding frame includes metal frame and plastic barricade, the plastic barricade sets up around the metal frame top. The utility model discloses a pass through plastic barricade and the cooperation of liquid crystal display butt during side income formula backlight unit and liquid crystal display installation to through the soft plastic barricade of matter in the liquid crystal display outside and liquid crystal display butt, avoid liquid crystal display to be collided with the damage, can improve the yields of liquid crystal display equipment production from this, also avoid using this side income formula backlight unit's display to use damage liquid crystal display in the environment of vibration.

Description

Side-in type backlight module

Technical Field

The utility model relates to a backlight technical field, concretely relates to side income formula backlight unit.

Background

With the progress of society and the development of science and technology, the living standard of people is greatly improved, and a large number of electronic products enter the daily life and work of people to enrich the daily life of people, facilitate the work of people and improve the working efficiency of people. For example, televisions are commonly used in family life and computers used for work, and the televisions can enable workers to watch TV plays, news and the like for people to entertain and know the outside world; the computer can be convenient for work, improves work efficiency. No matter the household television or the computer used for work is not separated from the display, the information can be displayed through the display. The existing display mostly adopts a liquid crystal display, and the liquid crystal display realizes the display function by matching a liquid crystal display screen which can not independently emit light with a backlight module. In order to guarantee the intensity of display, backlight unit's mounting structure generally adopts the metallic structure of stereoplasm, and the display screen is fragile glass structure generally, and when display screen and backlight unit's metallic structure installation, the display screen need be installed on backlight unit's metallic structure, and this kind of mounting means display screen is collided with the damage by backlight unit's metallic structure easily, influences the yields of liquid crystal display equipment production from this.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be to present LCD adopt backlight unit's installation shell be metallic structure, metallic structure collides with easily when liquid crystal display and backlight unit installation and damages liquid crystal display's technical problem, provides the side income formula backlight unit that can solve.

In order to solve the technical problem, the technical scheme of the utility model is that: a side-in backlight module comprises a back cavity, a side-in light source, a light scattering mechanism and a front frame, wherein the light scattering mechanism is arranged in the back cavity, and the front frame is fixed on the back cavity and fixes the light scattering mechanism in the back cavity; the side-entry light source is fixed on the inner side wall of the back cavity and emits light towards the light scattering mechanism; preceding frame is gluey indisputable body structure, preceding frame includes metal frame and plastic barricade, the plastic barricade sets up around the metal frame top.

Furthermore, the plastic barricade is the injection structure on the metal frame, be provided with the trompil on the metal frame, the plastic barricade is pegged graft in the trompil.

Furthermore, a convex block is arranged on the metal frame and is inserted into the plastic retaining wall.

Furthermore, the back cavity comprises a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are arranged on the periphery of the bottom plate, the height of the first side wall is higher than that of the second side wall, and the side-entry light source is fixed on the first side wall.

Further, the light scattering mechanism comprises a reflecting sheet, a light guide plate and a membrane assembly, the reflecting sheet is attached to the inside of the bottom plate, and the light guide plate is stacked on the reflecting sheet; the diaphragm assembly is overlapped on the light guide plate and is overlapped on the second side wall.

Further, a first clamping block is arranged on the light guide plate, a clamping hole is formed in the bottom plate, the first clamping block is matched with the clamping hole, and the first clamping block is clamped in the clamping hole.

Further, a second clamping block is arranged on the light guide plate, a clamping groove is formed in the diaphragm assembly, the second clamping block is matched with the clamping groove, and the second clamping block is clamped in the clamping groove.

Further, the diaphragm assembly comprises a light-diffusing film, a light-adding film and a peep-proof film, wherein the light-diffusing film, the light-adding film and the peep-proof film are sequentially stacked on the light guide plate, and bonding glue is arranged among the light-diffusing film, the light-adding film and the peep-proof film.

Furthermore, the front frame is fixed on the back cavity in a clamping mode through a clamping structure.

Furthermore, an L-shaped fixing glue is further bonded between the front frame and the back cavity.

The utility model discloses the beneficial effect who realizes mainly has: the front frame of the side-in type backlight module is of a rubber-iron integrated structure and comprises a metal frame and a plastic retaining wall, and the plastic retaining wall is arranged around the top of the metal frame. The structural strength of the front frame can be ensured through the metal frame; through plastic barricade and liquid crystal display butt cooperation when inclining income formula backlight unit and liquid crystal display installation to through the soft plastic barricade of matter in the liquid crystal display outside and liquid crystal display butt, avoid liquid crystal display to be collided with the damage, can improve the yields of liquid crystal display equipment production from this, also avoid using this display that inclines income formula backlight unit to use damage liquid crystal display in the environment of vibration.

Drawings

Fig. 1 is an exploded schematic view of a side-in type backlight module according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a front frame of a side-in type backlight module according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a back cavity of a side-in type backlight module according to an embodiment of the present invention;

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

fig. 5 is a schematic structural view of a reflector plate of a side-entry backlight module according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a light guide plate of a side-in type backlight module according to an embodiment of the present invention;

FIG. 7 is an enlarged view of the portion B in FIG. 6;

fig. 8 is a schematic structural view of a light-diffusing film, a light-adding film and a peep-proof film of the side-entry backlight module in the embodiment of the present invention;

fig. 9 is a schematic structural view of the side-in light source and the diaphragm assembly of the side-in backlight module according to the embodiment of the present invention after being installed in the back cavity.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 and 2, a lateral backlight module is used for a display (e.g., a liquid crystal display) that cannot emit light autonomously, and provides a backlight source for the display that cannot emit light autonomously. The side-in type backlight module comprises a back cavity 1, a side-in type light source 2, a light scattering mechanism 3 and a front frame 4, wherein the back cavity 1 is used for installing the side-in type light source 2 and the light scattering mechanism 3, and the side-in type light source 2 and the light scattering mechanism 3 are arranged in the back cavity 1. The side-entering light source 2 provides a point light source, and the light scattering mechanism 3 diffuses the point light emitted by the side-entering light source 2 into a uniform surface light source. The front frame 4 is fixed on the back cavity 1, and the light scattering mechanism 3 is fixed in the back cavity 1, so that a backlight module capable of emitting light from the front can be formed, and a backlight source is provided for a display which cannot emit light autonomously, such as a liquid crystal display.

Referring to fig. 1, in order to ensure the strength of the back cavity 1, the back cavity 1 is preferably made of metal, and may be formed by stamping or the like. The side-in light source 2 provides light source for the side-in backlight module, the side-in light source 2 can be adhered to the inner side wall of the back cavity 1 through the double-sided adhesive tape 21, and emits light towards the light scattering mechanism 3. Double faced adhesive tape 21 preferably adopts heat conduction double faced adhesive tape to the heat that the income formula light source 2 during operation of inclining can be passed through double faced adhesive tape 21 and transmitted to back of the body chamber 1 on, rethread back of the body chamber 1 heat dissipation, can improve the life of income formula light source 2 of inclining from this, and then improve the life of income formula backlight unit of inclining.

Referring to fig. 1 and 2, the front frame 4 is of an integrated plastic-iron structure, the front frame 4 includes a metal frame 41 and a plastic retaining wall 42, and the plastic retaining wall 42 is disposed around the top of the metal frame 41. Frame 4's structural strength before guaranteeing through metal frame 41, through plastic barricade 42 and liquid crystal display butt cooperation when side income formula backlight unit and liquid crystal display installation to through matter soft plastic barricade 42 in the liquid crystal display outside and liquid crystal display butt, avoid liquid crystal display to be collided with the damage, can improve the yields of liquid crystal display equipment production from this, also avoid using this side income formula backlight unit's display to use damage liquid crystal display in the environment of vibration.

Referring to fig. 2, the front frame 4 preferably has the following structure: the plastic retaining wall 42 is an injection molding structure on the metal frame 41, and the plastic retaining wall 42 is formed on the outer side of the periphery of the top of the metal frame 41 in an injection molding mode; be provided with the trompil on the metal crate 41, plastic barricade 42 is pegged graft in the trompil, and plastic barricade 42 is pegged graft and can be improved the reliability that metal crate 41 and plastic barricade 42 are connected in the trompil on metal crate 41, improves the intensity of preceding frame 4.

Referring to fig. 2, as a further preferred scheme, a protrusion is disposed on the metal frame 41 and inserted into the plastic retaining wall 42, so that the protrusion disposed on the metal frame 41 can be inserted into the plastic retaining wall 42 to further improve the reliability of the connection between the metal frame 41 and the plastic retaining wall 42, and further improve the strength of the front frame 4.

Referring to fig. 1 and fig. 2, during the production of the side-in type backlight module of the present embodiment, the front frame 4 is manufactured first, the metal frame 41 of the front frame 4 can be formed by stamping or the like, then the plastic retaining wall 42 is manufactured on the outer side of the top of the periphery of the metal frame 41 by injection molding, the metal frame 41 is provided with an opening, the plastic retaining wall 42 is inserted into the opening, the metal frame 41 is provided with a protruding block, and the protruding block is inserted into the plastic retaining wall 42, so that the metal frame 41 and the plastic retaining wall 42 of the front frame 4 are stably connected together. During the assembly of the side-in type backlight module, the side-in type light source 2 is firstly bonded and fixed on the inner side wall of the back cavity 1 through the double faced adhesive tape 21, then the light scattering mechanism 3 is installed in the back cavity 1, and finally the front frame 4 is fixed on the back cavity 1, so that the light scattering mechanism 3 is fixed in the back cavity 1 and is exposed from the middle part of the front frame 4. During the installation of the side income formula backlight unit of this embodiment and liquid crystal display, install liquid crystal display 4 tops in the front bezel, liquid crystal display outside butt is inboard in plastic barricade 42 all around.

Example two

Referring to fig. 1 to 3 and 9, the overall structure of the side-entry backlight module of the present embodiment is the same as that of the first embodiment, except that the structure of the back cavity 1 and the mounting structure of the back cavity 1 and the light scattering mechanism 3 are further improved in the present embodiment, and the same point can be implemented with reference to the first embodiment, and the difference of the present embodiment will be further described below.

Referring to fig. 3, the back cavity 1 includes a bottom plate 11, a first side wall 12 and a second side wall 13, the first side wall 12 and the second side wall 13 are disposed on the top of the periphery of the bottom plate 11, and the height of the first side wall 12 is greater than that of the second side wall 13. The backlight module is generally quadrangular in shape, the back cavity 1 is also of a quadrangular structure, the quadrangular back cavity 1 is provided with four side walls, a first side wall 12 with a higher height is used for installing the side-in type light sources 2, the number of the first side walls 12 is set according to the number of the side-in type light sources 2, the number of the side-in type light sources 2 is generally one, therefore, the first side wall 12 with the higher height is provided with one, the other three side walls with the lower height are second side walls 13, and the side-in type light sources 2 are fixedly bonded on the first side walls 12 through double faced adhesive tapes 21. The height of the first side wall 12 is set to be higher so as to meet the installation requirement of the side-in type light source 2, and the height of the second side wall 13 of the back cavity 1 is set to be lower so as to avoid the installation of the side-in type light source 2, so that the material usage of the backlight module can be reduced, and the weight of the backlight module can be reduced.

Referring to fig. 1, 5 to 9, the light scattering mechanism 3 includes a reflective sheet 31, a light guide plate 32 and a film assembly 33, the reflective sheet 31 and the light guide plate 32 are disposed on the bottom plate 11 and located inside the first sidewall 12 and the second sidewall 13, the reflective sheet 31 is attached to the bottom plate 11 by a double-sided adhesive tape, and the light guide plate 32 is stacked on the reflective sheet 31. The diaphragm assembly 33 is overlapped on the light guide plate 32, and the diaphragm assembly 33 is overlapped on the second side wall 13, so that the diaphragm assembly 33 can deform towards the outside of the back cavity 1 when being heated, deformed and expanded, and is prevented from being arched by the side wall of the back cavity 1 in the back cavity 1 when being heated, deformed and expanded, and the visual effect that the backlight module emits light is prevented from being influenced by the unevenness of the arch of the diaphragm assembly 33.

Referring to fig. 1 to 9, during the production of the side-in type backlight module of the present embodiment, a back cavity 1, a side-in type light source 2, a light scattering mechanism 3 and a front frame 4 are respectively manufactured. The back volume 1 may be stamped from sheet metal to form the floor 11, the first side wall 12 and the second side wall 13. The side-in light source 2 can be an LED light bar, and the LED light source is welded on the PCB to form the side-in light source 2. The reflection sheet 31, the light guide plate 32, and the diaphragm assembly 33 of the light diffusion mechanism 3 are cut out. The metal frame 41 of the front frame 4 can be formed by stamping and other methods, then the plastic retaining wall 42 is manufactured on the metal frame 41 through injection molding on the outer side of the top all around, a hole is formed in the metal frame 41, the plastic retaining wall 42 is inserted into the hole, a convex block is arranged on the metal frame 41, and the convex block is inserted into the plastic retaining wall 42, so that the metal frame 41 of the front frame 4 is stably connected with the plastic retaining wall 42.

Referring to fig. 1 to 9, during the assembly of the side-in backlight module, the side-in light source 2 is adhered and fixed on the inner side wall of the back cavity 1 through the double-sided adhesive tape 21, the reflective sheet 31 and the light guide plate 32 of the light scattering mechanism 3 are installed in the back cavity 1, the diaphragm assembly 33 is overlapped on the light guide plate 32 and is overlapped on the second side wall 13 at the outer side, and finally the front frame 4 is fixed on the back cavity 1, so that the light scattering mechanism 3 is fixed in the back cavity 1 and is exposed from the middle of the front frame 4.

During the installation of the formula backlight unit is gone into to side and liquid crystal display of this embodiment, install liquid crystal display at 4 tops of front bezel, liquid crystal display outside butt all around is inboard in plastic barricade 42. When the lateral entrance type backlight module works, lateral entrance point light emitted by the lateral entrance type light source 2 is processed by the light scattering mechanism 3 to become a uniform surface light source, so that backlight is provided for the liquid crystal display.

EXAMPLE III

Referring to fig. 1 to 9, the overall structure of the side-in type backlight module of the present embodiment is the same as that of the second embodiment, except that the installation of the light scattering mechanism 3 in the backlight module is further improved in the present embodiment, and the same point is referred to the second embodiment, and the difference of the present embodiment is further described below.

Referring to fig. 2 to 9, the light guide plate 32 is provided with a first latch 321, the bottom plate 11 is provided with a latch hole 111, the first latch 321 is adapted to the latch hole 111, that is, the size, shape and position of the first latch 321 and the latch hole 111 are the same, and the first latch 321 is latched in the latch hole 111, so that the light guide plate 32 can be stably fixed in the back cavity 1 through the cooperation of the first latch 321 and the latch hole 111. Preferably, a plurality of sets of the first latch 321 and the latch hole 111 are provided, so that the light guide plate 32 is more stably fixed in the back cavity 1; in the embodiment, a structure that three sets of the first latch 321 and the latch hole 111 are disposed on one side of the side-in light source 2 of the side-in backlight module is shown, and more sets of the first latch 321 and the latch hole 111 may be disposed in the side-in backlight module. The latch hole 111 may be punched out during the punch forming of the back cavity 1, and the first latch 321 may be integrally formed during the injection molding of the light guide plate 32.

Referring to fig. 6 to 8, in order to further fix the diaphragm assembly 33 on the light guide plate 32, the light guide plate 32 is provided with a second latch block 322, the diaphragm assembly 33 is provided with a latch slot 331, the second latch block 322 is adapted to the latch slot 331, that is, the size, shape and position of the second latch block 322 and the latch slot 331 are consistent with each other, so that the second latch block 322 can be just latched in the latch slot 331, and the diaphragm assembly 33 is stably fixed on the light guide plate 32 by the cooperation of the second latch block 322 and the latch slot 331. Preferably, a plurality of sets of second latch blocks 322 and locking slots 331 are provided, in this embodiment, a structure in which three sets of second latch blocks 322 and locking slots 331 are provided on one side of the side-entry light source 2 of the side-entry backlight module is shown, and more second latch blocks 322 and locking slots 331 may also be provided in the side-entry backlight module. Since the diaphragm assembly 33 is disposed on the side of the light guide plate 32 away from the back cavity 1, the second latch 322 is disposed on two opposite sides of the light guide plate 32. In addition, in order to better fix the film assembly 33 in the side-in type backlight module, the metal frame 41 of the front frame 4 is preferably provided with a through hole 411, and the second fixture block 322 passes through the fixture slot 331 and is inserted into the through hole 411 when the side-in type backlight module is assembled, so that the film assembly 33 is more stably installed in the side-in type backlight module.

Referring to fig. 6, 7, and 9, a supporting block 323 is further disposed on a side of the light guide plate 32 close to the side-entry light source 2, and the light guide plate 32 can be supported on the first sidewall 12 by the supporting block 323, so as to prevent the light guide plate 32 from being directly pressed on the side-entry light source 2 to damage the side-entry light source 2. The supporting blocks 323 may be integrally formed at the time of injection molding of the light guide plate 32. In this embodiment, a structure that three supporting blocks 323 are disposed on one side of the light guide plate 32 close to the side-in light source 2 is shown, and the first latch 321, the second latch 322 and the supporting blocks 323 are connected together, so that the first latch 321, the second latch 322 and the supporting blocks 323 are more stable and reliable, and the reliability of the side-in backlight module in the vibration environment is improved.

Referring to fig. 1, the film assembly 33 of the present embodiment includes a light-diffusing film 332, a light-adding film 333, and a peep-proof film 334, wherein the light-diffusing film 332, the light-adding film 333, and the peep-proof film 334 are sequentially stacked on the light guide plate 32, a clamping groove 331 is disposed on the outer sides of the light-diffusing film 332, the light-adding film 333, and the peep-proof film 334, and the light-diffusing film 332, the light-adding film 333, and the peep-proof film 334 are installed on the light guide plate 32 through the matching positioning of the clamping groove 331 and the first clamping block 321. In addition, in order to ensure that the light diffusing film 332, the light intensifying film 333 and the peep-proof film 334 are installed more stably, adhesive glue 335 is arranged among the light diffusing film 332, the light intensifying film 333 and the peep-proof film 334, and the light diffusing film 332, the light intensifying film 333 or the peep-proof film 334 of the adjacent layers are adhered and fixed together through the adhesive glue 335; meanwhile, the light diffusing film 332 can be adhered and fixed on the light guide plate 32 through the adhesive 335, so that the light diffusing film 332, the light intensifying film 333, and the peep-proof film 334 form an integral structure with the light guide plate 32.

Referring to fig. 1 to 9, in the production of the side-in type backlight module of the present embodiment, a back cavity 1, a side-in type light source 2, a light scattering mechanism 3 and a front frame 4 are respectively manufactured. The back cavity 1 may be stamped and formed from sheet metal to form the floor 11, the first side wall 12 and the second side wall 13. The side-in light source 2 can be an LED light bar, and the LED light source is welded on the PCB to form the side-in light source 2. The reflection sheet 31, the light guide plate 32, and the diaphragm assembly 33 of the light diffusion mechanism 3 are cut out. The metal frame 41 of the front frame 4 can be formed by stamping and other methods, then the plastic retaining wall 42 is manufactured on the metal frame 41 through injection molding on the outer side of the top all around, a hole is formed in the metal frame 41, the plastic retaining wall 42 is inserted into the hole, a convex block is arranged on the metal frame 41, and the convex block is inserted into the plastic retaining wall 42, so that the metal frame 41 of the front frame 4 is stably connected with the plastic retaining wall 42.

Referring to fig. 1 to 9, during the assembly of the side-in type backlight module, the side-in type light source 2 is adhered and fixed on the inner side wall of the back cavity 1 through the double-sided adhesive tape 21, the reflection sheet 31 and the light guide plate 32 of the light scattering mechanism 3 are installed in the back cavity 1, the light scattering film 332, the light intensifying film 333 and the peep-proof film 334 of the diaphragm assembly 33 are sequentially overlapped on the light guide plate 32, the outer side of the light scattering film is overlapped on the second side wall 13, and finally the front frame 4 is fixed on the back cavity 1, so that the light scattering mechanism 3 is fixed in the back cavity 1 and is exposed from the middle of the front frame 4.

During the installation of the formula backlight unit is gone into to side and liquid crystal display of this embodiment, install liquid crystal display at 4 tops of front bezel, liquid crystal display outside butt all around is inboard in plastic barricade 42. When the lateral entrance type backlight module works, lateral entrance point light emitted by the lateral entrance type light source 2 is processed by the light scattering mechanism 3 to become a uniform surface light source, so that backlight is provided for the liquid crystal display.

Example four

Referring to fig. 1 to 9, the overall structure of the side-entry backlight module of the present embodiment is the same as that of the second embodiment, except that the installation of the front frame 4 and the back cavity 1 is further improved in the present embodiment, and the same point is referred to the third embodiment, and the difference of the present embodiment is further described below.

Referring to fig. 1 to 3, the front frame 4 is fixed to the back cavity 1 by a snap structure, a latch 14 may be disposed on the outer sides of the first side wall 12 and the second side wall 13 of the back cavity 1, a latch hole 412 is disposed on the metal frame 41 of the front frame 4, the latch 14 is adapted to the latch hole 412, that is, the size, shape and position of the latch 14 and the latch hole 412 are consistent with each other, so that the front latch 14 can be just snapped into the latch hole 412, and the front frame 4 is fixed to the back cavity 1 through the latch 14 and the latch hole 412.

Referring to fig. 1, in order to further fix the front frame 4 and the back cavity 1 together, an L-shaped fixing adhesive 5 is further bonded between the front frame 4 and the back cavity 1, the front frame 4 and the back cavity 1 are fixed together at the outer side through the L-shaped fixing adhesive 5, and a gap between the front frame 4 and the back cavity 1 is plugged through the L-shaped fixing adhesive 5, so that light leakage and dust leakage of the side-in backlight module are avoided, the stability of the side-in backlight module is further improved, and the luminous visual effect of the backlight module is optimized.

Referring to fig. 1, the back of the back cavity 1 is further provided with a side-in type light source lead fixing glue 14 and a standby glue 15, and the lead of the side-in type light source 2 is fixed on the back of the backlight module through the side-in type light source lead fixing glue 14, so that the lead of the side-in type light source 2 is conveniently connected with an external circuit. The opening on the back cavity 1 can be blocked by the spare adhesive 15, and other structures of the backlight module can also be bonded.

Referring to fig. 1, a circle of foam rubber 6 is attached to the top of the metal frame 41 of the front frame 4, and the liquid crystal display screen is supported and buffered by the foam rubber 6 when being installed on the backlight module, so that the liquid crystal display screen is prevented from being damaged by the impact of the hard metal frame 41. In addition, the front frame 4 is also attached with a protective film 7, the protective film 7 is attached to the front side of the backlight module after the backlight module is produced to protect the light scattering mechanism 3, and the protective film 7 is required to be torn off when the liquid crystal display screen is installed on the backlight module.

Referring to fig. 1 to 9, the whole production, assembly and operation process of the side-in type backlight module of the present embodiment is the same as that of the side-in type backlight module of the third embodiment. During production and assembly of the side-in type backlight module, the front frame 4 is fixed on the back cavity 1 through a clamping structure, the lead of the side-in type light source 2 is fixed on the back of the backlight module through side-in type light source lead fixing glue 14, and standby glue 15 is adhered on the back of the backlight module. A circle of foam cotton glue 6 is attached to the top of the metal frame 41 of the front frame 4, and finally a protective film 7 is attached to the surfaces of the front frame 4 and the light scattering mechanism 3 after the backlight module is assembled.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. 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 claims of the present invention.

Claims (10)

1. A side-in backlight module is characterized in that: the light scattering mechanism comprises a back cavity (1), a side-entering light source (2), a light scattering mechanism (3) and a front frame (4), wherein the light scattering mechanism (3) is arranged in the back cavity (1), the front frame (4) is fixed on the back cavity (1), and the light scattering mechanism (3) is fixed in the back cavity (1); the lateral light source (2) is fixed on the inner side wall of the back cavity (1) and emits light towards the light scattering mechanism (3); preceding frame (4) are glued indisputable integrative structure, preceding frame (4) are including metal frame (41) and plastic barricade (42), plastic barricade (42) set up around metal frame (41) top.

2. The edge-lit backlight module of claim 1, wherein: plastic barricade (42) are the injection structure on metal frame (41), be provided with the trompil on metal frame (41), plastic barricade (42) are pegged graft in the trompil.

3. The edge-lit backlight module of claim 2, wherein: the metal frame (41) is provided with a convex block, and the convex block is inserted in the plastic retaining wall (42).

4. The edge-lit backlight module of any of claims 1-3, wherein: the back cavity (1) comprises a bottom plate (11), a first side wall (12) and a second side wall (13), the first side wall (12) and the second side wall (13) are arranged on the periphery of the bottom plate (11), the height of the first side wall (12) is higher than that of the second side wall (13), and the side-entry light source (2) is fixed on the first side wall (12).

5. The edge-type backlight module of claim 4, wherein: the light scattering mechanism (3) comprises a reflecting sheet (31), a light guide plate (32) and a membrane assembly (33), the reflecting sheet (31) is attached to the bottom plate (11), and the light guide plate (32) is overlapped on the reflecting sheet (31); the membrane assembly (33) is superposed on the light guide plate (32), and the membrane assembly (33) is overlapped on the second side wall (13).

6. The edge-lit backlight module of claim 5, wherein: the light guide plate (32) is provided with a first clamping block (321), the bottom plate (11) is provided with a clamping hole (111), the first clamping block (321) is matched with the clamping hole (111), and the first clamping block (321) is clamped in the clamping hole (111).

7. The edge-lit backlight module of claim 6, wherein: the light guide plate (32) is provided with a second clamping block (322), the diaphragm assembly (33) is provided with a clamping groove (331), the second clamping block (322) is matched with the clamping groove (331), and the second clamping block (322) is clamped in the clamping groove (331).

8. The edge-lit backlight module of claim 7, wherein: the light guide plate is characterized in that the diaphragm assembly (33) comprises a light diffusion film (332), a light enhancement film (333) and a peep-proof film (334), the light diffusion film (332), the light enhancement film (333) and the peep-proof film (334) are sequentially stacked on the light guide plate (32), and bonding glue (335) is arranged among the light diffusion film (332), the light enhancement film (333) and the peep-proof film (334).

9. The edge-lit backlight module of claim 8, wherein: the front frame (4) is clamped and fixed on the back cavity (1) through a clamping structure.

10. The edge-type backlight module of claim 9, wherein: an L-shaped fixing glue (5) is further bonded between the front frame (4) and the back cavity (1).

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