CN215576031U

CN215576031U - Novel double-light-source backlight module structure

Info

Publication number: CN215576031U
Application number: CN202121908590.XU
Authority: CN
Inventors: 赵俊廷
Original assignee: Weihai Taiji Huixian Photoelectric Co ltd
Current assignee: Weihai Taiji Huixian Photoelectric Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-18
Anticipated expiration: 2031-08-16

Abstract

The utility model provides a novel double-light-source backlight module structure which comprises an aluminum back plate, wherein backlight light sources are arranged on the upper side and the lower side of the aluminum back plate, and are fixedly connected with the aluminum back plate through a heat dissipation aluminum plate; the frame before the long limit is equipped with in the outside of light source in a poor light, and the left and right sides symmetry of aluminium backplate is equipped with the frame before the minor face, and frame and minor face before the long limit are connected end to end and are passed through panel beating adaptor and aluminium backplate fixed connection. The utility model adopts the arrangement of upper and lower light sources, so that the brightness of the backlight module is obviously improved, and the ultra-high brightness is easily realized. The frame utilizes the panel beating adaptor to fix before two adjacent long limits and the short edge on aluminium backplate, has simplified the backlight unit structure, makes the backlight unit structure volume littleer, and the structure is simpler, has reduced the use of screw, makes whole outward appearance more pleasing to the eye. The upper structure, the lower structure, the left structure and the right structure are symmetrically arranged, the structural parts are universal, the die sinking cost is reduced, the production cost is reduced, and the liquid crystal display module can be widely applied to the technical field of liquid crystal module structures.

Description

Novel double-light-source backlight module structure

Technical Field

The utility model relates to the technical field of liquid crystal module structures, in particular to a novel double-light-source backlight module structure.

Background

With the continuous maturity of the liquid crystal display industry, each television manufacturer is promoted to continuously innovate its own product, and how to make its own product more adaptable to the market demand on the premise of ensuring the product performance based on the market competition demand has become the key research direction of each large television manufacturer.

The existing backlight module structure is in a structure form of a common side light and direct type module, a side light bar is arranged on the side edge of a back plate, a plurality of direct type light bars are fixed on the back plate through screws or adhesive tapes, a complete cavity is formed to provide an even light source for liquid crystal, and when the module brightness is required to be improved, the LED light bar can correspond to the back plate through increasing the number of LED particles. However, the number of the LED particles added by the existing structure is limited, and the brightness of the backlight module can not be greatly improved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a novel double-light-source backlight module structure which is simple in structure and can greatly improve the brightness of the backlight module.

Therefore, the utility model provides a novel double-light-source backlight module structure which comprises an aluminum back plate, wherein backlight light sources are arranged on the upper side and the lower side of the aluminum back plate, and the backlight light sources are fixedly connected with the aluminum back plate; the frame before the long limit is equipped with in the outside of light source in a poor light, and the left and right sides symmetry of aluminium backplate is equipped with the frame before the minor face, and frame and minor face before the long limit are connected end to end and are passed through panel beating adaptor and aluminium backplate fixed connection.

Preferably, the sheet metal switching piece is a continuous bending structure, the middle of the sheet metal switching piece is fixedly connected with the aluminum back plate through screws, one end of the sheet metal switching piece is provided with a connecting lug plate, the connecting lug plate is arranged on the outer side of the back face of the aluminum back plate and is fixedly connected with two adjacent long-edge front frames and short-edge front frames respectively through screws, the other end of the sheet metal switching piece is provided with a folded edge, and the folded edge is clamped in a clamping groove formed in the side end face of the aluminum back plate.

Preferably, the backlight source includes LED lamp strip, heat dissipation aluminum plate and lamp strip apron, heat dissipation aluminum plate is L shape, the outside that aluminium backplate was located to the one end of L shape is passed through screw and aluminium backplate fixed connection, the other end inboard of L shape is equipped with LED lamp strip through the connection of two-sided heat conduction glue, heat dissipation aluminum plate's the outside still is equipped with the lamp strip apron through the connection of two-sided adhesive tape, the outside of locating LED lamp strip, the terminal surface fixed connection through glass fixed glue and liquid crystal glazing are buckled to the one end of lamp strip apron.

Preferably, both ends still are equipped with square aluminium alloy about the aluminium backplate, and square aluminium alloy passes through screw and aluminium backplate fixed connection, and the inboard of panel beating adaptor is located to square aluminium alloy, and its terminal surface passes through two-sided bubble celloidin and liquid crystal glazing fixed connection.

Preferably, an optical piece cavity is formed among the aluminum back plate, the square aluminum profile, the LED lamp strip, the lamp strip cover plate and the liquid crystal glass, and the reflector plate, the light guide plate and the optical diaphragm are sequentially arranged in the optical piece cavity.

Preferably, the frame all is the U-shaped before long limit preceding frame and minor face, and aluminium backplate, square aluminium alloy, backlight source, liquid crystal glazing all locate the U-shaped inslot of frame before long limit preceding frame and the minor face, still are equipped with between liquid crystal glazing and the frame before long limit preceding frame, the minor face and press the glass bubble cotton.

The utility model provides a novel double-light source backlight module structure, which has the following beneficial effects:

(1) the utility model has simple structure, adopts the arrangement of upper and lower light sources, has obvious brightness improving effect of the backlight module and easily realizes ultra-high brightness.

(2) According to the utility model, the two adjacent long-edge front frames and short-edge front frames are fixed on the aluminum back plate by the sheet metal adapter, so that the structure of the backlight module is simplified, the size of the backlight module is smaller, the structure is simpler, the use of screws is reduced, and the overall appearance is more attractive.

(3) The utility model utilizes the square aluminum profile and the sheet metal adapter as supports, improves the overall strength of the backlight module, and the backlight module is symmetrically arranged in the vertical and horizontal structures, so that the structural parts are universal, the die sinking cost is reduced, the production cost is reduced, and the competitiveness of enterprises is improved.

Drawings

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

FIG. 2 is a schematic view of the present invention with a set of adjacent long side and short side front frames removed;

FIG. 3 is a partial enlarged view of portion A shown in FIG. 2;

FIG. 4 is a schematic structural view in longitudinal section of the present invention;

fig. 5 is a schematic cross-sectional view of the present invention.

The labels in the figure are: 1. the LED light source comprises an aluminum back plate, 2 long-edge front frames, 3 short-edge front frames, 4 sheet metal connectors, 5 LED light bars, 6 heat dissipation aluminum plates, 7 light bar cover plates, 8 liquid crystal glass, 9 square aluminum profiles, 10 reflector plates, 11 light guide plates, 12 optical diaphragms, 13 glass pressing foam, 14 reserved connecting holes and 15 clamping grooves.

Detailed Description

The utility model is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the utility model. The method used in the utility model is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1 to 5, the present invention provides a novel dual light source backlight module structure, which includes an aluminum back plate 1, wherein backlight sources are respectively disposed on the upper and lower sides of the aluminum back plate 1, the backlight sources are fixedly connected to the aluminum back plate 1, and the dual light source arrangement makes the backlight module have an obvious brightness improvement effect, and easily realizes ultra-high brightness. The outside of backlight source still is equipped with frame 2 before the long limit, and the left and right sides symmetry of aluminium backplate 1 is equipped with frame 3 before the minor face, and frame 2 and the minor face before the long limit are connected end to end and through panel beating adaptor 4 and aluminium backplate 1 fixed connection, and the structure of will being shaded from the sun is made up into a whole.

Specifically, the number of the sheet metal connectors 4 is four, and the four corners of the backlight module structure are respectively arranged. Sheet metal switching piece 4 is the structure of buckling in succession, its middle part is through screw and 1 fixed connection of aluminium backplate, the one end of sheet metal switching piece 4 is equipped with the connection otic placode, the back outside of two through-holes and locating aluminium backplate 1 is seted up to the connection otic placode,

frame

2 and 3 fixed connection before the minor face before frame with two adjacent long limits respectively through the screw, the other end of sheet metal switching piece 4 is equipped with the hem, the hem card is located in the draw-in groove 15 that 1 side end face of aluminium backplate was seted up, with sheet metal switching piece 4 spacing fixed.

Every a set of backlight all includes LED lamp strip 5, heat dissipation aluminum plate 6 and lamp strip apron 7, heat dissipation aluminum plate 6 is L shape, screw and 1 fixed connection of aluminium backplate are passed through in the outside that aluminium backplate 1 was located to the one end of L shape, the other end inboard of L shape is equipped with LED lamp strip 5 through two-sided heat conduction glue connection, LED lamp strip 5 provides the light source for backlight unit simultaneously from upper and lower both sides, promote backlight unit luminance, and heat dissipation aluminum plate 6's setting is used for LED lamp strip 5 luminous when generating heat to play the radiating effect, thereby improve the stability of product. The outside of heat dissipation aluminum plate 6 is still connected through the double faced adhesive tape and is equipped with lamp strip apron 7, and the other end of lamp strip apron 7 is buckled and is located the outside of LED lamp strip 5 and prevent the product light leak, and the terminal surface fixed connection of glass fixed glue and liquid crystal glass 8 is passed through to the lateral surface of lamp strip apron 7.

Both ends still are equipped with square aluminium alloy 9 about aluminium backplate 1, and square aluminium alloy 9 passes through screw and aluminium backplate 1 fixed connection, and the inboard of 4 hems of panel beating adaptor is located to square aluminium alloy 9, and its terminal surface plays the joint support effect to liquid crystal glazing 8 through two-sided bubble celloidin and liquid crystal glazing 8 fixed connection.

An optical part cavity is formed among the aluminum back plate 1, the square aluminum profile 9, the LED lamp strip 5, the lamp strip cover plate 7 and the liquid crystal glass 8, and the reflector plate 10, the light guide plate 11 and the optical diaphragm 12 are sequentially arranged in the optical part cavity. The positions and connection relations of the reflective sheet 10, the light guide plate 11 and the optical film 12 belong to the prior art, and are not described in detail herein. The optical film 12 is a high-brightness optical film, so that the brightness of the whole backlight module is further improved.

Frame 3 all is the U-shaped before long limit preceding frame 2 and the minor face, and the U-shaped inslot of frame 3 before long limit preceding frame 2 and the minor face is all located to aluminium backplate 1, square aluminium alloy 9, backlight source, liquid crystal glass 8, still is equipped with between liquid crystal glass 8 and long limit preceding frame 2, the minor face preceding frame 3 and presses glass bubble cotton 13, presses glass bubble cotton 13 and long limit preceding frame 2, the short face preceding frame 3 fixed connection to avoid liquid crystal glass 8's edge to collide with the damage.

Reserved connecting holes 14 are further formed in the short-edge front frame 3 and the folded edge of the sheet metal adapter part 4 in a communicated mode so as to meet different customer requirements.

The utility model has simple structure, adopts the arrangement of upper and lower light sources, has obvious brightness improving effect of the backlight module and easily realizes ultra-high brightness. The utility model utilizes the square aluminum profile 9 and the sheet metal adapter 4 as supports, the strength of the whole backlight module is improved, and the two adjacent long-edge front frames 2 and short-edge front frames 3 are fixed on the aluminum back plate 1 by the sheet metal adapter 4, so that the backlight module structure is simplified, the backlight module structure has smaller volume and simpler structure, the use of screws is reduced, and the whole appearance is more beautiful.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A novel double-light-source backlight module structure is characterized by comprising an aluminum back plate, wherein backlight light sources are arranged on the upper side and the lower side of the aluminum back plate and fixedly connected with the aluminum back plate; the outside of light source is shaded is equipped with frame before long limit, the left and right sides symmetry of aluminium backplate is equipped with frame before the minor face, frame before the long limit with frame end to end just through the panel beating adaptor with aluminium backplate fixed connection before the minor face.

2. The novel double-light-source backlight module structure as claimed in claim 1, wherein the sheet metal adapter is of a continuous bending structure, the middle of the sheet metal adapter is fixedly connected with the aluminum back plate through a screw, a connecting lug plate is arranged at one end of the sheet metal adapter, the connecting lug plate is arranged at the outer side of the back face of the aluminum back plate and is fixedly connected with two adjacent long-edge front frames and short-edge front frames through screws respectively, a folded edge is arranged at the other end of the sheet metal adapter, and the folded edge is clamped in a clamping groove formed in the side end face of the aluminum back plate.

3. The novel dual-light-source backlight module structure of claim 1, wherein the backlight source comprises an LED light bar, a heat dissipation aluminum plate and a light bar cover plate, the heat dissipation aluminum plate is L-shaped, one end of the L-shaped is arranged on the outer side of the aluminum back plate and fixedly connected with the aluminum back plate through a screw, the LED light bar is arranged on the inner side of the other end of the L-shaped through double-sided heat conduction glue connection, the light bar cover plate is arranged on the outer side of the heat dissipation aluminum plate through double-sided glue connection, and one end of the light bar cover plate is bent and arranged on the outer side of the LED light bar and fixedly connected with the end face of the liquid crystal glass through a glass fixing glue.

4. The novel double-light-source backlight module structure as claimed in claim 3, wherein square aluminum profiles are further arranged at the left end and the right end of the aluminum back plate and fixedly connected with the aluminum back plate through screws, the square aluminum profiles are arranged on the inner side of the sheet metal adapter part, and the end faces of the square aluminum profiles are fixedly connected with the liquid crystal glass through double-faced foam rubber.

5. The novel dual-light-source backlight module structure of claim 4, wherein an optical cavity is formed among the aluminum back plate, the square aluminum profile, the LED light bar, the light bar cover plate and the liquid crystal glass, and the reflector plate, the light guide plate and the optical film are sequentially arranged in the optical cavity.

6. The novel dual-light-source backlight module structure as claimed in claim 4, wherein the long-side front frame and the short-side front frame are both U-shaped, the aluminum back plate, the square aluminum profile, the backlight source and the liquid crystal glass are all disposed in the U-shaped grooves of the long-side front frame and the short-side front frame, and glass foam is further disposed between the liquid crystal glass and the long-side front frame and between the liquid crystal glass and the short-side front frame.