CN214038031U

CN214038031U - Novel backlight module

Info

Publication number: CN214038031U
Application number: CN202023323753.6U
Authority: CN
Inventors: 兰艳群
Original assignee: Dongguan Kangde Photoelectric Technology Co ltd
Current assignee: Dongguan Kangde Photoelectric Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-24
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a pair of novel backlight module, including PCB board, first light shield layer, reflection stratum, light guide plate and second light shield layer, be equipped with several LED on the PCB board, first light shield layer glues in PCB board top through first glue film, the reflection stratum is in first light shield layer top, the reflection stratum passes through the bonding of second glue film in the light guide plate below, the bonding of second light shield layer is on the light guide plate, it is corresponding with the light guide site face on the light guide plate to be equipped with luminous through-hole on the second light shield layer. Compared with the prior art, the utility model provides a pair of novel backlight unit, the assembly is simple, and low in manufacturing cost can reach the effect in LED lamp area through the LED of three less quantity, saves the cost, sets up first light shield layer and second light shield layer simultaneously on backlight unit, all carries out the shading with the upper and lower both ends of light guide plate and control both ends, and shading effect is good, improves the utilization ratio of light source through setting up the reflection stratum, and the even just visual effect of light-emitting is better.

Description

Novel backlight module

Technical Field

The utility model relates to a light source module technical field specifically is a novel backlight unit.

Background

The backlight module on the game host is a game interactive light source, which can change the light emitting frequency and different light colors according to the intensity of the game, in the prior art, the backlight module adopts an LED lamp strip, a plurality of LEDs are arranged on the LED lamp strip, and the adoption of a single LED for light emission can cause that the light emission of the whole light emitting area is not uniform enough, and the visual effect is not good enough, so the improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel backlight unit to solve the technical problem in the background art.

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

the utility model provides a novel backlight module, includes PCB board, first light shield layer, reflection stratum, light guide plate and second light shield layer, be equipped with several LED on the PCB board, first light shield layer glues in PCB board top through first glue film, the reflection stratum glues in first light shield layer top, the reflection stratum passes through the bonding of second glue film in the light guide plate below, the bonding of second light shield layer is on the light guide plate, it is corresponding with the leaded light site face on the light guide plate to be equipped with luminous through-hole on the second light shield layer.

The first shading layer and the second shading layer are made of black shading paper, and the thickness of the first shading layer and the thickness of the second shading layer are 0.03-0.06 mm.

The thickness of the first glue layer is 0.04-0.06mm, the first glue layer covers the whole PCB and the left side and the right side of the first glue layer protrude out of the PCB.

The reflecting layer is a white reflecting film, and the thickness of the reflecting layer is 0.04-0.06 mm.

The thickness of the second adhesive layer is 0.02-0.04mm, the second adhesive layer is adhered along the periphery of the upper end face of the light guide plate, and the second adhesive layer is of a frame structure.

And the two side edges of the second shading layer protrude out of the two sides of the light guide plate and wrap the two side edges of the light guide plate.

The number of the LEDs is three.

Compared with the prior art, the utility model provides a pair of novel backlight unit, the assembly is simple, and low in manufacturing cost can reach the effect in LED lamp area through the LED of three less quantity, saves the cost, sets up first light shield layer and second light shield layer simultaneously on backlight unit, all carries out the shading with the upper and lower both ends of light guide plate and control both ends, and shading effect is good, improves the utilization ratio of light source through setting up the reflection stratum, and the even just visual effect of light-emitting is better.

Drawings

FIG. 1: the structure of the concrete embodiment 1 is schematically shown.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Specific example 1: referring to fig. 1, in an embodiment of the present invention, a novel backlight module includes a PCB 1, a first light shielding layer 3, a reflective layer 4, a light guide plate 6 and a second light shielding layer 7, three LEDs are disposed on the PCB 1, the three LEDs can only emit red, blue and yellow light, that is, the light emitting color of each LED is fixed, or each LED emits red, blue and yellow light in the three LEDs, that is, each LED can change red, blue and yellow three colors, the first light shielding layer 3 is adhered to the PCB 1 through a first adhesive layer 2, the reflective layer 4 is adhered to the top of the first light shielding layer 3, the reflective layer 4 is adhered to the bottom of the light guide plate 6 through a second adhesive layer 5, the second light shielding layer 7 is adhered to the light guide plate 6, and the second light shielding layer 7 is provided with a light emitting through hole 701 corresponding to the light guide dot surface on the light guide plate 6. The LED penetrates through the first adhesive layer 2, the first shading layer 3, the reflecting layer 4 and the second adhesive layer 5. The sum of the thicknesses of the first adhesive layer 2, the first shading layer 3, the reflecting layer 4 and the second adhesive layer 5 is equal to the height of the LED.

First light shield layer 3 and second light shield layer 7 all adopt black shading paper, first light shield layer 3 and second light shield layer 7's thickness is 0.03-0.06mm, the utility model discloses select the 0.05mm specification.

The thickness of first glue film 2 is 0.04-0.06mm, first glue film 2 covers whole PCB board and the left and right sides of first glue film 2 protrusion PCB board 1, the area of first glue film is greater than the PCB board area.

The reflecting layer 4 is a white reflecting film, the thickness of the reflecting layer 4 is 0.04-0.06mm, and the utility model discloses select the 0.05mm specification. The area of the reflecting layer is the same as that of the first adhesive layer.

The thickness of second glue film 5 is 0.02-0.04mm, the utility model discloses select 0.03mm specification, second glue film 5 glues along 6 up end of light guide plate edge a week and covers, second glue film 5 is frame construction, and the centre is through-hole structure.

The two side edges of the second shading layer 7 protrude out of the two sides of the light guide plate 6, and the two side edges of the light guide plate 6 are wrapped, so that light leakage at the side edges of the light guide plate 6 is avoided.

It is obvious to a person skilled in the art that the invention is not restricted to details of the foregoing exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel backlight module is characterized in that: including PCB board, first light shield layer, reflection stratum, light guide plate and second light shield layer, be equipped with several LED on the PCB board, first light shield layer glues in PCB board top through first glue film, the reflection stratum glues in first light shield layer top, the reflection stratum passes through the bonding of second glue film in the light guide plate below, the bonding of second light shield layer is on the light guide plate, it is corresponding with the leaded light site face on the light guide plate to be equipped with luminous through-hole on the second light shield layer.

2. The novel backlight module according to claim 1, wherein: the first shading layer and the second shading layer are made of black shading paper, and the thickness of the first shading layer and the thickness of the second shading layer are 0.03-0.06 mm.

3. The novel backlight module according to claim 1, wherein: the thickness of the first glue layer is 0.04-0.06mm, the first glue layer covers the whole PCB and the left side and the right side of the first glue layer protrude out of the PCB.

4. The novel backlight module according to claim 1, wherein: the reflecting layer is a white reflecting film, and the thickness of the reflecting layer is 0.04-0.06 mm.

5. The novel backlight module according to claim 1, wherein: the thickness of the second adhesive layer is 0.02-0.04mm, the second adhesive layer is adhered along the periphery of the upper end face of the light guide plate, and the second adhesive layer is of a frame structure.

6. The novel backlight module according to claim 1, wherein: and the two side edges of the second shading layer protrude out of the two sides of the light guide plate and wrap the two side edges of the light guide plate.

7. The novel backlight module according to claim 1, wherein: the number of the LEDs is three.