CN211905926U - Ultra-thin LED backlight source - Google Patents

Abstract

The utility model discloses an ultra-thin type LED backlight, include: the metal light source rear seat comprises an octagonal bottom plate and four corner side plates which are arranged on the peripheral edge of the bottom plate and extend upwards vertical to the bottom plate, a main side plate is arranged between every two adjacent corner side plates, a socket is formed in one main side plate, clamping plates are arranged on two sides of the socket, lugs are arranged on the outer sides of the corner side plates, mounting holes are formed in the lugs, and turning pieces are arranged on the main side plates; the light source is arranged on the metal light source rear seat and comprises a lamp bead and pins; the light guide plate is embedded in the area surrounded by the corner side plate and the main side plate, the light guide plate is attached to the bottom plate, the light guide plate is provided with a notch part, and the light guide plate is also provided with a step concave platform; the reflecting film is attached to the stepped concave table and covers the lamp beads; and the diffusion sheet is embedded in the area surrounded by the corner side plate and the main side plate and is attached to the upper end surface of the light guide plate. The backlight source has the characteristics of thin overall thickness, compact structural installation, convenient installation, firm and stable installation, complete overall functions and strong practicability.

Description

Ultra-thin LED backlight source

Technical Field

The utility model relates to a backlight, more specifically says that it relates to an ultra-thin type LED backlight.

Background

The backlight source is a light source located at the back of the liquid crystal display, and the light emitting effect of the backlight source directly influences the visual effect of the liquid crystal display module. The liquid crystal display does not emit light itself, and it displays a pattern or its result of modulating light.

In the design of the backlight, the selection of the light source is important, the light source determines the photoelectric parameters of the backlight, such as power consumption, brightness, color, and the like, and also determines the characteristics of the backlight, such as the use condition, the service life, and the like, and the backlight mainly comprises a light source, a light guide plate, an optical mold sheet and a structural member.

However, the conventional backlight source has too thick thickness, is large in size when being installed on a machine body or a device, is not favorable for fixed installation, and the light source is easy to fall off or shift in some toy car bodies or devices which generate vibration, so that the service performance of the backlight source is influenced, and the overall effect is not good. Accordingly, the utility model provides an ultra-thin type LED backlight.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide an ultra-thin type LED backlight, this backlight has whole thickness and thin, and the structrual installation is compact, is convenient for install and install firm, stable characteristics.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to an ultra-thin type LED backlight, include:

the metal light source rear seat comprises an octagonal bottom plate and four corner side plates which are arranged on the peripheral edge of the bottom plate and extend upwards perpendicular to the bottom plate, a main side plate is arranged between every two adjacent corner side plates, a socket is formed in one main side plate, clamping plates extending towards the inner side of the main side plate are arranged on two sides of the socket, lugs are arranged on the outer sides of the corner side plates, mounting holes are formed in the lugs, and bendable turning pieces are arranged on the main side plates;

the light source is arranged on the metal light source rear seat and comprises lamp beads embedded between the clamping plates and pins exposed to the outer side of the metal light source rear seat;

the light guide plate is embedded in a region surrounded by the corner side plate and the main side plate, the lower end face of the light guide plate is attached to the upper end face of the bottom plate, the light guide plate is provided with a notch part for the lamp beads to extend into, and the light guide plate is also provided with a step concave platform positioned above the notch part;

the reflecting film is attached to the stepped concave table and covers the lamp beads, and the upper end face of the reflecting film and the upper end face of the light guide plate are positioned in the same horizontal plane;

and the diffusion sheet is embedded in the area surrounded by the corner side plate and the main side plate and is attached to the upper end surface of the light guide plate.

The utility model discloses further set up to, the lamp pearl is LED lamp pearl.

To sum up, the utility model discloses following beneficial effect has:

1. the light guide plate, the reflecting film and the diffusion sheet are embedded and clamped in the metal light source rear seat and are arranged in a stacked mode, the thickness is reduced, and the whole thickness is thinner;

2. after the metal light source rear seat is embedded through the light guide plate, the reflecting film and the diffusion sheet, the edge of the diffusion sheet is covered by the bent turnover sheet to form fixation, the thickness is increased without fastening of a fastening piece, and the whole backlight source is thinner;

3. the lugs extend from the outer sides of the side plates at each corner, and the function of convenient installation can be achieved under the condition that the thickness of the backlight source is not increased; the four directions are all arranged, and the backlight source is firmly and stably installed;

4. the reflecting film is attached to the stepped concave table, so that the upper end surface is not protruded, and the diffusion sheet is convenient to attach and flatten;

5. the light source stretches into the socket and inlays between the cardboard, is difficult for droing, and with breach portion adaptation, the light guide plate leaded light of being convenient for, and overall function is perfect, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a partial structure of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 2, an ultra-thin LED backlight according to the present embodiment includes:

the metal light source rear seat 10 comprises an octagonal bottom plate 11 and four corner side plates 12 which are arranged on the periphery of the bottom plate 11 and extend upwards perpendicular to the bottom plate 11, main side plates 13 are arranged between every two adjacent corner side plates 12, a socket 14 is formed in one main side plate 13, clamping plates 15 extending towards the inner sides of the main side plates 13 are arranged on two sides of the socket 14, lug plates 16 are arranged on the outer sides of the corner side plates 12, mounting holes 17 are formed in the lug plates 16, and bendable turning pieces 18 are arranged on the main side plates 13;

the light source 20 is arranged on the metal light source rear seat 10, and the light source 20 comprises lamp beads 21 embedded between the clamping plates 15 and pins 22 exposed outside the metal light source rear seat 10;

the light guide plate 30 is embedded in the area surrounded by the corner side plate 12 and the main side plate 13, the lower end surface of the light guide plate 30 is attached to the upper end surface of the bottom plate 11, the light guide plate 30 is provided with a notch part 31 into which the lamp beads 21 extend, and the light guide plate 30 is further provided with a step concave platform 32 positioned above the notch part 31;

the reflecting film 40 is attached to the stepped concave table 32 and covers the lamp beads 21, and the upper end face of the reflecting film 40 and the upper end face of the light guide plate 30 are positioned in the same horizontal plane;

and a diffusion sheet 50 fitted in a region surrounded by the corner side plate 12 and the main side plate 13, the diffusion sheet 50 being attached to an upper end surface of the light guide plate 30.

In this embodiment, the light guide plate 30 is embedded in the area surrounded by the corner side plate 12 and the main side plate 13, the lower end surface is attached to the upper end surface of the bottom plate 11, the reflective film 40 is attached to the step concave 32 and covers the lamp beads 21, the light is reflected to be concentrated and gathered in the metal light source rear seat 10, and is guided by the light guide plate 30, the diffusion sheet 50 is attached to the upper end surface of the light guide plate 30, and preferably, the bent turnover sheet 18 is wrapped at the edge of the diffusion sheet 50 to form fixation.

Furthermore, the lamp beads 21 are LED lamp beads, so that the lighting effect is high, the power consumption is low, the service life is long, the control is easy, the maintenance is free, and the LED lamp beads are safe and environment-friendly.

The utility model has the advantages that the light guide plate, the reflecting film and the diffusion sheet are embedded and clamped in the metal light source rear seat in a laminated manner, so that the thickness is reduced, and the overall thickness is thinner; after the metal light source rear seat is embedded through the light guide plate, the reflecting film and the diffusion sheet, the edge of the diffusion sheet is covered by the bent turnover sheet to form fixation, the thickness is increased without fastening of a fastening piece, and the whole backlight source is thinner; the lug plates extend from the outer sides of the side plates at each corner, so that the function of convenient installation can be achieved under the condition of not increasing the thickness of the backlight source; the four directions are all arranged, and the backlight source is firmly and stably installed; the reflecting film is attached to the stepped concave table, so that the upper end surface is not protruded, and the diffusion sheet is convenient to attach and flatten; stretch into the socket through the light source and inlay between the cardboard, be difficult for droing, and with breach portion adaptation, the light guide plate leaded light of being convenient for, and overall function is perfect, and the practicality is strong.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (2)

1. An ultra-thin LED backlight, comprising:

the metal light source rear seat comprises an octagonal bottom plate and four corner side plates which are arranged on the peripheral edge of the bottom plate and extend upwards perpendicular to the bottom plate, a main side plate is arranged between every two adjacent corner side plates, a socket is formed in one main side plate, clamping plates extending towards the inner side of the main side plate are arranged on two sides of the socket, lugs are arranged on the outer sides of the corner side plates, mounting holes are formed in the lugs, and bendable turning pieces are arranged on the main side plates;

the light source is arranged on the metal light source rear seat and comprises lamp beads embedded between the clamping plates and pins exposed to the outer side of the metal light source rear seat;

the light guide plate is embedded in a region surrounded by the corner side plate and the main side plate, the lower end face of the light guide plate is attached to the upper end face of the bottom plate, the light guide plate is provided with a notch part for the lamp beads to extend into, and the light guide plate is also provided with a step concave platform positioned above the notch part;

the reflecting film is attached to the stepped concave table and covers the lamp beads, and the upper end face of the reflecting film and the upper end face of the light guide plate are positioned in the same horizontal plane;

and the diffusion sheet is embedded in the area surrounded by the corner side plate and the main side plate and is attached to the upper end surface of the light guide plate.

2. The ultra-thin LED backlight source of claim 1, wherein the light beads are LED light beads.

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