CN214586088U

CN214586088U - Backlight light guide plate and diaphragm matching and fixing structure

Info

Publication number: CN214586088U
Application number: CN202120292412.2U
Authority: CN
Inventors: 方泽端; 叶世挺; 刘连柱; 邓玉泉
Original assignee: Yidong Electronic Technology Co ltd
Current assignee: Yidong Electronic Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-02
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a backlight technical field discloses a cooperation fixed knot of backlight light guide plate and diaphragm constructs, include light guide plate, diffusion diaphragm, BEF diaphragm down, go up BEF diaphragm and boss, one side on light guide plate top is provided with the boss, the upper surface of light guide plate covers has the diffusion diaphragm, the upper surface of diffusion diaphragm covers has lower BEF diaphragm, the upper surface of BEF diaphragm covers down has last BEF diaphragm. The utility model discloses not only through the boss that sets up the three-layer echelonment at a side of light guide plate, set up the breach that corresponds length respectively in one side of three diaphragm simultaneously for every layer structure after the equipment keeps the level, attaches a double-sided tape through the upper surface at light guide plate, boss simultaneously, after three diaphragm laminating, utilizes the section of boss poor, makes a double-sided tape can adhere three diaphragm simultaneously, thereby has promoted fixed efficiency and has reduced material cost.

Description

Backlight light guide plate and diaphragm matching and fixing structure

Technical Field

The utility model relates to a backlight technical field specifically is a cooperation fixed knot of backlight light guide plate and diaphragm constructs.

Background

At present, in the conventional backlight, when a plurality of layers of films (such as upper BEF, lower BEF, diffusion patches and the like) are stacked in the production and assembly process, displacement is easy to occur in the production or transportation process due to the lack of fixed positions or insufficient fixed effects among the films; if the adhesive tape is used to fix the film layer by layer, not only the material cost is increased, but also the effective efficiency is reduced, and the backlight structure is abnormal because the adhesive tape is not attached properly.

Therefore, those skilled in the art provide a fitting and fixing structure for a backlight light guide plate and a film to solve the above problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooperation fixed knot of backlight light guide plate and diaphragm constructs to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a cooperation fixed knot of backlight light guide plate and diaphragm constructs, includes light guide plate, diffusion diaphragm, lower BEF diaphragm, goes up BEF diaphragm and boss, one side on light guide plate top is provided with the boss, the upper surface of light guide plate covers has the diffusion diaphragm, just first breach has been seted up to one side of diffusion diaphragm, the upper surface of diffusion diaphragm covers has the BEF diaphragm down, just the second breach has been seted up to one side of BEF diaphragm down, the upper surface of BEF diaphragm covers down has go up the BEF diaphragm, just the third breach has been seted up to one side of going up the BEF diaphragm.

As a further aspect of the present invention: the boss is three-layer ladder shape, and the height of three-layer ladder is equal with the thickness of diffusion diaphragm, lower BEF diaphragm and last BEF diaphragm respectively.

As a further aspect of the present invention: and a double-sided tape is adhered to the upper surface of the boss, and one end of the double-sided tape horizontally extends to the surface of the light guide plate.

As a further aspect of the present invention: the first notch is embedded with the bottom layer of the boss, and the bottom end of the diffusion membrane on one side of the first notch is adhered to the bottom of the double-sided adhesive tape.

As a further aspect of the present invention: the second notch is embedded with the middle layer of the boss, and the bottom end of the lower BEF membrane on one side of the second notch is adhered to the middle lower part of the double-sided adhesive tape.

As a further aspect of the present invention: the third notch is embedded with the top layer of the boss, and the bottom end of the upper BEF membrane on one side of the third notch is adhered to the middle upper part of the double-sided adhesive tape.

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

set up the boss of three-layer echelonment through a side at the light guide plate, and make the height of three-layer echelonment equal with the thickness of three diaphragm respectively, set up the breach that corresponds length respectively in the corresponding position punishment of three diaphragm simultaneously, make light guide plate and three diaphragm successive layer equipment back, every layer structure keeps the level, simultaneously through at the light guide plate, a double-sided tape is pasted to the upper surface of boss, after three diaphragm is pasted layer by layer, utilize the segment difference of boss, make a double-sided tape can adhere three diaphragm simultaneously, thereby fixed efficiency has been promoted and material cost has been reduced.

Drawings

FIG. 1 is a schematic perspective view of a fitting structure of a backlight light guide plate and a film;

FIG. 2 is an enlarged schematic view of a portion A of the backlight light guide plate and the film in the fitting and fixing structure of the backlight light guide plate and the film;

fig. 3 is a schematic perspective view of a boss and a double-sided tape in a fitting and fixing structure of a backlight light guide plate and a film.

In the figure: 1. a light guide plate; 2. a diffusion membrane; 3. a BEF membrane is arranged; 4. applying a BEF membrane; 5. a boss; 6. double-sided adhesive tape; 7. a first notch; 8. a second notch; 9. and a third notch.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a backlight light guide plate and diaphragm matching and fixing structure, includes a light guide plate 1, a diffusion diaphragm 2, a lower BEF diaphragm 3, an upper BEF diaphragm 4 and a boss 5, one side of the top of the light guide plate 1 is provided with the boss 5, the upper surface of the light guide plate 1 is covered with the diffusion diaphragm 2, and one side of the diffusion diaphragm 2 is provided with a first notch 7, the upper surface of the diffusion diaphragm 2 is covered with the lower BEF diaphragm 3, and one side of the lower BEF diaphragm 3 is provided with a second notch 8, the upper surface of the lower BEF diaphragm 3 is covered with the upper BEF diaphragm 4, and one side of the upper BEF diaphragm 4 is provided with a third notch 9.

In fig. 1, 2 and 3: the boss 5 is in a three-layer ladder shape, the height of the three-layer ladder shape is equal to the thickness of the diffusion membrane 2, the thickness of the lower BEF membrane 3 and the thickness of the upper BEF membrane 4 respectively, and the three-layer ladder shape is used for keeping the structure of each layer horizontal; a double-sided tape 6 is adhered to the upper surface of the boss 5, and one end of the double-sided tape 6 horizontally extends to the surface of the light guide plate 1 to form four sections of veneers with different heights; the first notch 7 is embedded with the bottom layer of the boss 5, and the bottom end of the diffusion membrane 2 at one side of the first notch 7 is adhered to the bottom of the double-sided adhesive tape 6 for limiting and pasting the diffusion membrane 2; the second notch 8 is embedded with the middle layer of the boss 5, and the bottom end of the lower BEF membrane 3 at one side of the second notch 8 is adhered to the middle lower part of the double-sided adhesive tape 6 for limiting and pasting the lower BEF membrane 3; the third notch 9 and the top layer of the boss 5 are mutually embedded, and the bottom end of the upper BEF membrane 4 on one side of the third notch 9 is mutually adhered to the middle upper part of the double-sided adhesive tape 6, so that the upper BEF membrane 4 is limited and attached.

The utility model discloses a theory of operation is: firstly, three layers of step-shaped bosses 5 with variable heights are arranged on one side edge of a light guide plate 1, the heights of the three layers of steps are respectively equal to the thicknesses of a diffusion membrane 2, a lower BEF membrane 3 and an upper BEF membrane 4, meanwhile, a first notch 7, a second notch 8 and a third notch 9 are respectively arranged at corresponding positions of the three membranes, after the light guide plate 1, the diffusion membrane 2, the lower BEF membrane 3 and the upper BEF membrane 4 are assembled layer by layer, the top end of each layer of structure and the top end of the boss 5 at a corresponding stage are kept horizontal, meanwhile, a double-sided adhesive tape 6 is attached to the upper surfaces of the light guide plate 1 and the boss 5, after the three membranes are attached layer by layer, the double-sided adhesive tape 6 can be simultaneously attached to the three membranes by utilizing the section difference of the bosses 5, and therefore, the fixing efficiency is improved, and the material cost is reduced.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a cooperation fixed knot of backlight light guide plate and diaphragm constructs, includes light guide plate (1), diffusion diaphragm (2), BEF diaphragm (3) down, goes up BEF diaphragm (4) and boss (5), its characterized in that, one side on light guide plate (1) top is provided with boss (5), the upper surface of light guide plate (1) covers has diffusion diaphragm (2), just first breach (7) have been seted up to one side of diffusion diaphragm (2), the upper surface of diffusion diaphragm (2) covers has BEF diaphragm (3) down, just second breach (8) have been seted up to one side of BEF diaphragm (3) down, the upper surface of BEF diaphragm (3) covers down has last BEF diaphragm (4), just third breach (9) have been seted up to one side of going up BEF diaphragm (4).

2. The structure of claim 1, wherein the boss (5) has three steps, and the heights of the three steps are equal to the thicknesses of the diffusion film (2), the lower BEF film (3) and the upper BEF film (4), respectively.

3. The structure of claim 1, wherein a double-sided tape (6) is adhered to the upper surface of the boss (5), and one end of the double-sided tape (6) extends horizontally to the surface of the light guide plate (1).

4. The structure of claim 3, wherein the first notch (7) is engaged with the bottom layer of the boss (5), and the bottom end of the diffusion film (2) on the side of the first notch (7) is adhered to the bottom of the double-sided tape (6).

5. The structure of claim 3, wherein the second notch (8) is engaged with the middle layer of the boss (5), and the bottom end of the lower BEF film (3) at one side of the second notch (8) is adhered to the middle lower portion of the double-sided tape (6).

6. The structure of claim 3, wherein the third notch (9) is engaged with the top layer of the boss (5), and the bottom end of the upper BEF film (4) at the side of the third notch (9) is adhered to the middle upper portion of the double-sided tape (6).