CN219179745U

CN219179745U - Non-frame backlight plate assembly

Info

Publication number: CN219179745U
Application number: CN202320244646.9U
Authority: CN
Inventors: 张松镇
Original assignee: Shenzhen Qunyu Technology Co ltd
Current assignee: Shenzhen Qunyu Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-06-13
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a non-adhesive frame backlight plate assembly, which comprises a lower frame body, wherein an upper frame body is fixedly arranged right above the lower frame body, a reflecting sheet is arranged on the inner wall of the bottom of the lower frame body, a light guide plate is arranged on the upper surface of the reflecting sheet, an optical film group is arranged on the upper surface of the light guide plate, a plurality of slots are formed in the outer wall of the top of the lower frame body, a plurality of clamping pieces matched with the slots are arranged on the outer wall of the bottom of the upper frame body, a plurality of positioning holes are formed in the outer wall of the top of the lower frame body, and a plurality of positioning columns matched with the positioning holes are formed in the outer wall of the bottom of the upper frame body. The utility model adopts the clamping piece to be clamped in the slot, the bottom end of the clamping piece is limited in the slot, the clamping piece is matched with the slot to fasten the upper frame body and the lower frame body together, and each functional board is fixed in the lower frame body and the upper frame body instead of the gluing mode, so that other problems such as shaking caused by ageing of the glue after a period of use are avoided, and the quality of products is ensured.

Description

Non-frame backlight plate assembly

Technical Field

The utility model relates to the technical field of backlight plates, in particular to a non-frame backlight plate assembly.

Background

The backlight plate is a light source device for ensuring the back of the liquid crystal display to emit light. The traditional backlight module mainly comprises main components such as a rubber frame, an optical film, a light guide plate, a reflecting sheet, a lamp strip, a back plate and the like.

The application number is CN201721850943.9, and the bulletin number is CN 208027044U's a back light glues frame and glues frame in a poor light, glues the frame in a poor light and is flexible rectangle framework, the rectangle framework include the frame body and perpendicular and protruding in the inside casing body of frame body inner wall, the inside casing body is used for bearing the liquid crystal face.

However, in practical assembly, the functional boards are usually glued by gluing and then fixed in an iron shell, and after a period of use, the glue ages to cause other problems such as shaking, which affect the quality of the product. Accordingly, there is a need to design a frame-less backlight assembly to solve the above-mentioned problems.

Disclosure of Invention

It is therefore an object of the present utility model to provide a frameless backlight assembly that overcomes the above-mentioned shortcomings of the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a no frame back light plate subassembly, includes the lower framework, fixed mounting has the upper frame directly over the lower framework, the bottom inner wall of lower framework is provided with the reflector plate, the upper surface of reflector plate is provided with the light guide plate, the upper surface of light guide plate is provided with the optics diaphragm group, a plurality of slot has been seted up to the top outer wall of lower framework, the bottom outer wall of upper frame is provided with the fastener of a plurality of and slot looks adaptation, a plurality of locating hole has been seted up to the top outer wall of lower framework, the bottom outer wall of upper frame is provided with a plurality of and locating column of locating hole looks adaptation.

Further, a buckling groove is formed in the side portion of the top end of the lower frame body, and buckling edges matched with the buckling groove are arranged on the side wall of the bottom end of the upper frame body.

Furthermore, the inner side wall of the upper frame body is provided with a clamping groove, and a panel is clamped in the clamping groove.

Further, the optical film group comprises a light enhancement sheet, an upper diffusion sheet and a lower diffusion sheet, wherein the upper diffusion sheet is arranged on the upper surface of the light enhancement sheet, and the lower diffusion sheet is arranged on the lower surface of the upper diffusion sheet.

Furthermore, the first light shielding sheets are arranged on the outer walls of the two sides of the optical film group, and the second light shielding sheets are arranged on the outer walls of the front face and the back face of the optical film group.

Further, a lamp plate is arranged between the inner walls of the two sides of the lower frame body and the outer walls of the two sides of the light guide plate, and a backing plate is arranged between the outer wall of one side of the lamp plate and the inner wall of the lower frame body.

In the technical scheme, the clamping piece is clamped in the slot, the bottom end of the clamping piece is limited in the slot, the clamping piece is matched with the slot to fasten the upper frame body and the lower frame body together, and each functional board is fixed in the lower frame body and the upper frame body, so that the gluing mode is replaced, other problems such as shaking caused by ageing of glue after a period of use are avoided, and the quality of products is ensured; the positioning columns are inserted into the positioning holes, and the positioning columns are matched with the positioning holes to perform preliminary positioning on the position of the upper frame body, so that the upper frame body and the lower frame body can be conveniently installed; the buckling edges are buckled in the buckling grooves, and the buckling edges are matched with the buckling grooves to limit the relative positions of the upper frame body and the lower frame body, so that the upper frame body and the lower frame body are installed more tightly.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

Fig. 1 is a schematic perspective view of a backlight assembly without a plastic frame according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a front partial cross-sectional structure of a non-frame backlight assembly according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram showing a front partial cross-sectional structure of a backlight assembly without a plastic frame according to an embodiment of the utility model.

Fig. 4 is a schematic diagram of a side partially sectional structure of a backlight assembly without a plastic frame according to an embodiment of the present utility model.

Reference numerals illustrate:

the LED lamp comprises a lower frame body 1, an upper frame body 2, a reflecting sheet 3, a light guide plate 4, an optical film group 5, a slot 6, a clamping piece 7, a positioning hole 8, a positioning column 9, a buckling slot 10, a buckling edge 11, a panel 12, a light enhancement sheet 13, an upper diffusion sheet 14, a lower diffusion sheet 15, a first light shielding sheet 16, a second light shielding sheet 17, a lamp panel 18 and a base plate 19.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the adhesive-frame-free backlight plate assembly provided by the embodiment of the utility model comprises a lower frame body 1, wherein an upper frame body 2 is fixedly arranged right above the lower frame body 1, a reflecting sheet 3 is arranged on the inner wall of the bottom of the lower frame body 1, a light guide plate 4 is arranged on the upper surface of the reflecting sheet 3, an optical film group 5 is arranged on the upper surface of the light guide plate 4, a plurality of slots 6 are formed in the outer wall of the top of the lower frame body 1, a plurality of clamping pieces 7 matched with the slots 6 are arranged on the outer wall of the bottom of the upper frame body 2, a plurality of positioning holes 8 are formed in the outer wall of the top of the lower frame body 1, and a plurality of positioning columns 9 matched with the positioning holes 8 are arranged on the outer wall of the bottom of the upper frame body 2.

Specifically, in this embodiment, a non-glue frame backlight assembly includes a lower frame 1, an upper frame 2 is fixedly installed right above the lower frame 1, a reflective sheet 3 is disposed on an inner wall of a bottom of the lower frame 1, the reflective sheet 3 is located at a lowest position and is used for reflecting light, a light guide plate 4 is disposed on an upper surface of the reflective sheet 3, the light guide plate 4 diffuses the light to make backlight uniform, an optical film group 5 is disposed on an upper surface of the light guide plate 4, the optical film group 5 further processes the light, a plurality of slots 6 are disposed on an outer wall of a top of the lower frame 1, the slots 6 are disposed at equal distances, a plurality of clips 7 adapted to the slots 6 are disposed on an outer wall of a bottom of the upper frame 2, the clips 7 are disposed at equal distances and are disposed at positions corresponding to the slots 6, when the upper frame 2 is installed on the lower frame 1, the clips 7 are clamped in the slots 6, the bottom end of the clamping piece 7 is limited in the slot 6, the clamping piece 7 is matched with the slot 6 to fasten the upper frame body 2 and the lower frame body 1 together, each functional board is fixed in the lower frame body 1 and the upper frame body 2 instead of the gluing mode, other problems such as shaking caused by ageing of viscose after a period of use are avoided, the quality of products is ensured, a plurality of positioning holes 8 are formed in the outer wall of the top of the lower frame body 1, the positioning holes 8 are equidistantly formed, the positioning holes 8 and the slot 6 are alternately arranged, a plurality of positioning posts 9 matched with the positioning holes 8 are formed in the outer wall of the bottom of the upper frame body 2, the positioning posts 9 are equidistantly arranged and correspond to the positioning holes 8, when the upper frame body 2 is installed on the lower frame body 1, the positioning posts 9 are spliced in the positioning holes 8, the positioning posts 9 are matched with the positioning holes 8 to preliminarily position the upper frame body 2, the upper frame body 2 and the lower frame body 1 are convenient to install.

The utility model provides a non-adhesive frame backlight board assembly, which adopts the clamping piece 7 to be clamped in the slot 6, the bottom end of the clamping piece 7 is limited in the slot 6, the clamping piece 7 is matched with the slot 6 to fasten the upper frame body 2 and the lower frame body 1 together, and each functional board is fixed in the lower frame body 1 and the upper frame body 2, so that the utility model replaces the gluing mode, avoids other problems such as shaking caused by ageing of adhesive after a period of use, and ensures the quality of products.

In one embodiment provided by the utility model, as shown in fig. 2-4, a buckling groove 10 is formed in the side part of the top end of the lower frame body 1, a buckling edge 11 matched with the buckling groove 10 is formed in the side wall of the bottom end of the upper frame body 2, when the upper frame body 2 is installed on the lower frame body 1, the buckling edge 11 is buckled on the buckling groove 10, and the buckling edge 11 is matched with the buckling groove 10 to limit the relative positions of the upper frame body 2 and the lower frame body 1, so that the upper frame body 2 and the lower frame body 1 are installed more tightly; as shown in fig. 2-4, the inner side wall of the upper frame 2 is provided with a clamping groove, a panel 12 is clamped in the clamping groove, and the panel 12 adopts a liquid crystal panel.

In another embodiment of the present utility model, as shown in fig. 2-4, the optical film set 5 includes a light enhancement film 13, an upper diffusion film 14 and a lower diffusion film 15, where the light enhancement film 13 has an upper and a lower layer structure, so that light is emitted perpendicularly to a backlight plane to achieve the effect of enhancing illumination, the upper diffusion film 14 is disposed on the upper surface of the light enhancement film 13, the lower diffusion film 15 is disposed on the lower surface of the upper diffusion film 14, and the upper diffusion film 14 and the lower diffusion film 15 mainly play a role of correcting diffusion angles, so that the light radiation area is increased, but the light intensity per unit area is reduced.

In still another embodiment provided by the utility model, as shown in fig. 2-4, the first light shielding sheet 16 is arranged on the outer walls of the two sides of the optical film group 5, the second light shielding sheet 17 is arranged on the outer walls of the front and the back of the optical film group 5, the second light shielding sheet 17 extends downwards to the light guide plate 4, and the second light shielding sheet 17 and the first light shielding sheet 16 have the performances of buffering, backlight, insulation, water resistance, friction resistance and the like, so as to play roles of backlight, insulation and water resistance; as shown in fig. 2-3, a lamp plate 18 is arranged between the inner walls of the two sides of the lower frame body 1 and the outer walls of the two sides of the light guide plate 4, the lamp plate 18 adopts an LED light source, the side surface of the light guide plate 4 emits light, the light is reflected by the dots of the light guide plate 4 to form a surface light source, a base plate 19 is arranged between the outer wall of one side of the lamp plate 18 and the inner wall of the lower frame body 1, one side of the base plate 19 is fixed on the inner wall of the lower frame body 1, the lamp plate 18 is fixed on the base plate 19, and the base plate 19 adopts an insulating material to play a role in insulation.

Working principle: when in use, the reflecting sheet 3 is arranged at the lowest part and is used for reflecting light, the light guide plate 4 is arranged on the upper surface of the reflecting sheet 3, the lamp plate 18 emits light on the side surface of the light guide plate 4, the light guide plate 4 is used for reflecting dots to form a surface light source, backlight is uniform, the optical film group 5 is arranged on the upper surface of the light guide plate 4, the optical film group 5 comprises a light enhancement sheet 13, an upper diffusion sheet 14 and a lower diffusion sheet 15, the light enhancement sheet 13 adopts an upper layer structure and a lower layer structure, so that light is emitted out of a backlight plane vertically, the effect of enhancing illumination is achieved, the upper diffusion sheet 14 and the lower diffusion sheet 15 mainly play a role of correcting diffusion angles, the light radiation area can be increased, but reduces the light intensity of unit area, the side wall of the optical film group 5 is provided with a first shading sheet 16 and a second shading sheet 17, the second shading sheet 17 extends downwards to the light guide plate 4, the second shading sheet 17 and the first shading sheet 16 have the performances of buffering, backlight, insulation, water resistance, friction resistance and the like, play roles of backlight, insulation and water resistance, when the upper frame body 2 is installed in the lower frame body 1, the positioning columns 9 are inserted into the positioning holes 8, the positioning columns 9 are matched with the positioning holes 8 to perform preliminary positioning on the position of the upper frame body 2, the clamping pieces 7 are clamped in the slots 6, the bottom ends of the clamping pieces 7 are limited inside the slots 6, the clamping pieces 7 are matched with the slots 6 to fasten the upper frame body 2 and the lower frame body 1 together, the functional boards are fixed inside the lower frame body 1 and the upper frame body 2, the gluing mode is replaced, other problems such as shaking caused by ageing of glue after a period of use are avoided, the quality of a product is guaranteed, the buckling edges 11 are buckled in the buckling grooves 10, the buckling edges 11 are matched with the buckling grooves 10 to limit the relative positions of the upper frame body 2 and the lower frame body 1, and the installation between the upper frame body 2 and the lower frame body 1 is tighter.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a no frame back light plate subassembly, includes lower framework (1), its characterized in that, fixed mounting directly over lower framework (1) has last framework (2), the bottom inner wall of lower framework (1) is provided with reflector plate (3), the upper surface of reflector plate (3) is provided with light guide plate (4), the upper surface of light guide plate (4) is provided with optics diaphragm group (5), a plurality of slot (6) have been seted up to the top outer wall of lower framework (1), the bottom outer wall of going up framework (2) is provided with a plurality of fastener (7) with slot (6) looks adaptation, a plurality of locating hole (8) have been seted up to the top outer wall of lower framework (1), the bottom outer wall of going up framework (2) is provided with a plurality of reference column (9) with locating hole (8) looks adaptation.

2. The non-adhesive frame backlight assembly according to claim 1, wherein the top side of the lower frame body (1) is provided with a fastening groove (10), and the bottom side wall of the upper frame body (2) is provided with a fastening edge (11) adapted to the fastening groove (10).

3. The frame-free backlight assembly according to claim 1, wherein the inner side wall of the upper frame body (2) is provided with a clamping groove, and a panel (12) is clamped in the clamping groove.

4. The frame-free backlight assembly according to claim 1, wherein the optical film group (5) comprises a light enhancement sheet (13), an upper diffusion sheet (14) and a lower diffusion sheet (15), the upper diffusion sheet (14) is disposed on an upper surface of the light enhancement sheet (13), and the lower diffusion sheet (15) is disposed on a lower surface of the upper diffusion sheet (14).

5. The frame-free backlight assembly according to claim 1, wherein the first light shielding sheets (16) are disposed on the outer walls of the two sides of the optical film set (5), and the second light shielding sheets (17) are disposed on the outer walls of the front and back sides of the optical film set (5).

6. The non-adhesive frame backlight assembly according to claim 1, wherein a lamp plate (18) is disposed between two side inner walls of the lower frame body (1) and two side outer walls of the light guide plate (4), and a pad (19) is disposed between one side outer wall of the lamp plate (18) and the inner wall of the lower frame body (1).