CN216286065U

CN216286065U - Direct type backlight and side-in type backlight compatible liquid crystal module structure

Info

Publication number: CN216286065U
Application number: CN202122270086.8U
Authority: CN
Inventors: 赵俊廷
Original assignee: Weihai Taiji Huixian Photoelectric Co ltd
Current assignee: Weihai Taiji Huixian Photoelectric Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-04-12
Anticipated expiration: 2031-09-18

Abstract

The utility model provides a liquid crystal module structure with compatibility of direct type backlight and side type backlight. The front end face of the lower middle frame is provided with a connecting auxiliary frame, the outer side of the connecting auxiliary frame is buckled with an upper middle frame, liquid crystal glass is attached to the front end face of the upper middle frame, and an optical piece cavity is formed among the liquid crystal glass, the upper middle frame, the lower middle frame and the metal back plate. Be equipped with LED lamp plate, diffuser plate and optical diaphragm in proper order in the optical part cavity, IC, electronic components and connectors and the holding tank adaptation at the LED lamp plate back, the outside of metal backplate still is equipped with LED lamp control panel, and LED lamp control panel is equipped with the spliced pole, and the spliced pole runs through the metal backplate and is connected with the LED lamp plate. The utility model adds the upper middle frame on the basis of the side-in type backlight module, enlarges the cavity of the optical element, meets the assembly requirement of the direct type backlight module, reduces the mold opening quantity and reduces the production cost of products.

Description

Direct type backlight and side-in type backlight compatible liquid crystal module structure

Technical Field

The utility model relates to the technical field of liquid crystal module structures, in particular to a direct type backlight and side type backlight compatible liquid crystal 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 direct type backlight module structure generally needs to be opened again during production, the cost investment of the matched complete machine mold is very high, the product cost is indirectly increased, and the market competitiveness of the product is reduced.

Disclosure of Invention

The present invention is directed to solve the above technical deficiencies, and provides a liquid crystal module structure with both direct type backlight and side type backlight, which can add an upper middle frame on the basis of the side type backlight module to meet the requirements of the direct type backlight module.

Therefore, the utility model provides a liquid crystal module structure with compatibility of direct type backlight and side type backlight, which comprises a lower middle frame and a metal back plate, wherein the lower middle frame and the metal back plate are buckled together, and the metal back plate is provided with an accommodating groove protruding outwards.

Preferably, the front end face of the lower middle frame is provided with a connecting auxiliary frame, the outer side of the connecting auxiliary frame is buckled with the upper middle frame, and the outer side face of the upper middle frame is flush with the outer side face of the lower middle frame; the front end face of the upper middle frame is attached with liquid crystal glass through foam adhesive, and an optical piece cavity is formed among the liquid crystal glass, the upper middle frame, the lower middle frame and the metal back plate.

Preferably, be equipped with LED lamp plate, diffuser plate and optics diaphragm in proper order in the optics cavity, the LED lamp plate lock attaches the medial surface at metal backplate, IC, electronic components and connectors and the holding tank adaptation at the LED lamp plate back, and the outside of metal backplate still is equipped with LED lamp control panel, and LED lamp control panel is equipped with the spliced pole, and the spliced pole runs through metal backplate and is connected with the LED lamp plate.

Preferably, the front side of LED lamp plate is equipped with the several support column, the top surface and the diffuser plate butt of support column.

Preferably, the outer side surface of the connecting auxiliary frame is provided with a bulge, the side surface of the upper middle frame is provided with a clamping groove corresponding to the bulge one by one, and the bulge is arranged in the clamping groove and used for clamping and connecting the auxiliary frame and the upper middle frame together.

Preferably, the front end face of the lower middle frame is attached with liquid crystal glass through foam adhesive, an optical piece cavity is formed among the liquid crystal glass, the lower middle frame and the metal back plate, a reflector plate, a light guide plate and an optical diaphragm are sequentially arranged in the optical piece cavity, and the LED lamp strip is arranged on one side of the optical piece cavity.

Preferably, it still includes the PCBA apron, and the bottom and the rear end face of PCBA apron pass through screw and metal backplate fixed connection.

The utility model provides a liquid crystal module structure compatible with direct type backlight and side type backlight, which has the following beneficial effects:

(1) the utility model has simple structure, and the metal back plate with the accommodating groove is utilized to make the side-in type backlight module and the direct type backlight module compatible. An upper middle frame can be added on the basis of the side-in type backlight module, the space in the cavity of the optical element is increased, the assembly efficiency of the whole backlight module is improved, the quality of a product is effectively guaranteed, the quality of the whole liquid crystal module is improved, the reject ratio of the product is reduced, the production cost of the product is reduced, and the product competitiveness of enterprises is improved.

(2) The utility model can be used for both the lower middle frame and the metal back plate, thereby reducing the cost of opening the mold, further reducing the production cost of finished products and quickly realizing the conversion between the side-in type backlight module and the direct type backlight module.

Drawings

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

FIG. 2 is a schematic structural view of a cross-sectional view of embodiment 1 of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural view of embodiment 3 of the present invention;

FIG. 5 is a schematic structural view of a cross-sectional view in embodiment 3 of the present invention;

fig. 6 is an enlarged schematic view of B in fig. 5.

The labels in the figure are: 1. the LED lamp comprises a lower middle frame, 11 connecting auxiliary frames, 12 upper middle frames, 2 metal back plates, 21 accommodating grooves, 22 PCBA cover plates, 3 liquid crystal glass, 4 reflecting sheets, 5 light guide plates, 6 optical diaphragms, 7 LED lamp strips, 8 LED lamp panels, 81 supporting columns, 9 diffusion plates, 10 LED lamp control plates and 101 connecting columns.

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.

Example 1

As shown in fig. 1-3, the present invention provides a liquid crystal module structure compatible with a direct type backlight and a side type backlight, which includes a lower middle frame 1 and a metal back plate 2, wherein the lower middle frame 1 and the metal back plate 2 are fastened and fixed together, the metal back plate 2 is provided with an accommodating groove 21 protruding outwards, and the accommodating groove 21 is used for being compatible with an LED lamp panel 8 structure of the direct type backlight module structure, and can be used as a reinforcing rib of the metal back plate 2. In this embodiment, the front end face of the lower middle frame 1 is attached with the liquid crystal glass 3 through the foam adhesive, an optical piece cavity is formed among the liquid crystal glass 3, the lower middle frame 1 and the metal back plate 2, the reflecting plate 4, the light guide plate 5 and the optical diaphragm 6 are sequentially arranged in the optical piece cavity, the LED light bar 7 is arranged on one side of the optical piece cavity, and the side of the metal back plate 2 can be fixed through the heat dissipation aluminum plate. The backlight mode is a traditional side-in type backlight module structure, and the positions and connection relations of the reflector plate 4, the light guide plate 5 and the optical film 6 belong to the prior art, so that the description is not repeated.

The liquid crystal module structure of this embodiment still includes PCBA apron 22, and PCBA apron 22's bottom and rear end face pass through screw and 2 fixed connection of metal backplate for the PCBA board of 3 lower extreme connections of protection liquid crystal glazing.

Example 2

The difference between this embodiment and embodiment 1 is that the backlight module structure adopts a direct type, an LED lamp panel 8, a diffuser plate 9 and an optical diaphragm 6 are sequentially arranged in a corresponding optical piece cavity, the LED lamp panel 8 is locked on the inner side surface of the metal back plate 2, and a plurality of Mini-type LED lamps are arranged on the front side surface of the LED lamp panel 8; the back of LED lamp plate 8 is equipped with IC, electronic components and connector of control LED lamp, and the whole shape of IC, electronic components and connector and the 21 adaptations of holding tank of metal backplate 2, and the outside of metal backplate 2 still is equipped with LED lamp control board 10, and LED lamp control board 10 is equipped with spliced pole 101, and spliced pole 101 runs through metal backplate 2 and is connected with LED lamp plate 8.

The setting up of holding tank 21 makes the backlight unit of side income formula when direct type Mini type LED backlight unit is assembled in the conversion, need not the die sinking again, directly utilize original lower center 1, metal backplate 2 and liquid crystal display panel can, only the optics cavity of this kind of structure is less, assembly LED lamp plate 8, diffuser plate 9 and optics diaphragm 6 back, the distance of the play plain noodles of LED lamp to diffuser plate 9 is less, the assembly required precision is higher, the yields is low, the special efficiency of joining in marriage is slow, indirectly cause product cost to increase, be unfavorable for improving the competitiveness of product.

Example 3

In order to improve the yield and the assembly efficiency of the direct type Mini LED backlight module, embodiment 2 is improved. As shown in fig. 4-6, the present embodiment is different from embodiment 2 in that a connection sub-frame 11 is further disposed on the front end surface of the lower middle frame 1, an upper middle frame 12 is fastened on the outer side of the connection sub-frame 11, and the outer side surface of the upper middle frame 12 is flush with the outer side surface of the lower middle frame 1, so as to ensure the beautiful appearance of the product. In this embodiment, liquid crystal glazing 3 passes through the foam adhesive to be attached at the preceding terminal surface of last center 12, forms the optics cavity between liquid crystal glazing 3, last center 12, lower center 1, the metal backplate 2, and the setting of going up center 12 has increased the space of optics cavity, has improved the assembly efficiency of whole module, has improved the yields, has reduced the cost of product.

Also be equipped with LED lamp plate 8, diffuser plate 9 and optics diaphragm 6 in proper order as shown in embodiment 2 in the optics cavity, the IC at the 8 backs of LED lamp plate, electronic components and connector also with holding tank 21 adaptation, the leading flank of LED lamp plate 8 still is equipped with several support column 81, the top surface and the 9 butts of diffuser plate of support column 81, setting up of support column 81 makes diffuser plate 9 keep leveling, it is more even to make whole backlight unit's backlight, has improved the quality of product.

Specifically, the outer side surface of the connecting auxiliary frame 11 is provided with a protrusion, the side surface of the upper middle frame 12 is provided with a clamping groove corresponding to the protrusion one by one, and the protrusion is arranged in the clamping groove to fix the connecting auxiliary frame 11 and the upper middle frame 12 together in a buckling manner.

When the direct type backlight module is manufactured, only the insert is added on the basis of the original lower middle frame 1 mould to adjust and manufacture the integrated lower middle frame 1 and the upper middle frame 12, and the corresponding PCBA cover plate 22 also needs to be slightly adjusted and manufactured on the mould. The whole process is simple in manufacturing process, the cost of newly opening the die is greatly reduced, and the product cost is further reduced.

The utility model uses the metal back plate 2 with the containing groove 21 to make the side-in type backlight module and the direct type backlight module compatible. An upper middle frame 12 can be added on the basis of the side-in type backlight module, the space in the cavity of the optical element is increased, the assembly efficiency of the whole backlight module is improved, the yield is improved, the production cost of products is reduced, and the product competitiveness of enterprises is improved.

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. The utility model provides a compatible liquid crystal module structure is shaded in straight following formula and side income formula, its characterized in that, it includes center and metal backplate down, the center with the metal backplate integrated circuit board is buckled together down, the metal backplate is equipped with outside bellied holding tank, the preceding terminal surface of center is equipped with the connection subframe down, the outside buckle of connecting the subframe has last center.

2. The structure of claim 1, wherein the outer side of the upper middle frame is flush with the outer side of the lower middle frame; the front end face of the upper middle frame is attached with liquid crystal glass through foam adhesive, and an optical piece cavity is formed among the liquid crystal glass, the upper middle frame, the lower middle frame and the metal back plate.

3. The structure of claim 2, wherein an LED lamp panel, a diffuser plate and an optical diaphragm are sequentially arranged in the optical element cavity, the LED lamp panel is locked on the inner side surface of the metal back plate, an IC, an electronic component and a connector on the back surface of the LED lamp panel are matched with the accommodating groove, an LED lamp control panel is further arranged on the outer side of the metal back plate, the LED lamp control panel is provided with a connecting column, and the connecting column penetrates through the metal back plate and is connected with the LED lamp panel.

4. The structure of claim 3, wherein the front side of the LED lamp panel is provided with a plurality of support columns, and top surfaces of the support columns are abutted against the diffusion plate.

5. The structure of claim 2, wherein protrusions are disposed on outer side surfaces of the sub-frames, slots corresponding to the protrusions are disposed on side surfaces of the upper middle frame, and the protrusions are disposed in the slots to fasten the sub-frames and the upper middle frame together.

6. The liquid crystal module structure of claim 2, wherein the optical cavity is sequentially provided with a reflector, a light guide plate and an optical film, and the LED light bar is disposed at one side of the optical cavity.

7. The direct type backlight and side type backlight compatible liquid crystal module structure according to any one of claims 1 to 6, further comprising a PCBA cover plate, wherein the bottom and the rear end surface of the PCBA cover plate are fixedly connected with the metal back plate through screws.