CN212540960U

CN212540960U - Split type ultra-thin backlight of LED

Info

Publication number: CN212540960U
Application number: CN202020530694.0U
Authority: CN
Inventors: 邓世美; 罗里扣
Original assignee: Zhejiang Mlk Optoelectronics Technology Co ltd
Current assignee: Zhejiang Mlk Optoelectronics Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-02-12
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a split type ultrathin LED backlight source, which comprises a lamp bracket and a light guide plate, wherein the light guide plate is positioned above the lamp bracket and is embedded (embedded) in the lamp bracket; the first LED chip and the second LED chip are respectively arranged in the lamp holder and positioned on one side far away from the light guide plate; the LED PCB is located below the lamp holder and embedded in (lower embedded) the lamp holder, the first LED chip and the second LED chip are respectively electrically connected with the LED PCB, the PCB is located below the lamp holder and connected with the lamp holder, and the PCB is electrically connected with the LED PCB. The utility model discloses a split type ultra-thin backlight of LED, including lighting fixture and light guide plate, it can dismantle the PCB board with the lighting fixture and be connected, can dismantle the PCB board when LED chip damages and get off to change, improve life-span and utilization ratio.

Description

Split type ultra-thin backlight of LED

Technical Field

The utility model belongs to the technical field of liquid crystal display equipment, concretely relates to split type ultra-thin backlight of LED.

Background

With the improvement of the living standard and the scientific and technical level of people, the liquid crystal display device is widely applied due to the advantages of high definition, portability, low energy consumption and the like, such as a liquid crystal television, a liquid crystal display, a notebook computer and the like, and the liquid crystal television is more popular among people. At present, the main parts of the backlight source structure in the market are all composed of a hardware back plate, a plastic middle frame and a hardware upper frame, a diffusion plate or a light guide plate and an optical diaphragm are clamped and fixed by the plastic middle frame, and a light source, the light guide plate for guiding light or the diffusion plate and a light source body are assembled into a whole. It has the following disadvantages: firstly, the structure is not flexible enough, the assembly is complex, the structure stability is not high enough, the strength is poor, and the safety performance is not strong enough; secondly, different sizes cannot be used universally, for example, molds with different sizes need to be developed aiming at products with different sizes in a plastic middle frame mode, and the mold opening occupies a considerable cost; thirdly, when different abnormal conditions appear in the product, need maintain or change to backlight overall structure, with high costs, the maintenance is troublesome.

The publication number is: CN201866638U, the subject name is a practical novel patent of split type liquid crystal backlight structure, and its technical scheme discloses "including diffuser plate, optics diaphragm, liquid crystal glazing, wherein the diffuser plate is installed in the bottom surface, and liquid crystal glazing is on it, and the optics diaphragm is installed between diffuser plate and liquid crystal glazing, its characterized in that: the diffusion plate, the optical membrane and the liquid crystal glass are installed on the structural aluminum profile together, and the structural aluminum profile is wrapped around the diffusion plate, the optical membrane and the liquid crystal glass.

Take above-mentioned utility model patent as an example, it has mentioned split type liquid crystal backlight, but its technical scheme is "structure aluminium alloy is split type structure, and it comprises two long limit aluminium alloy and both sides limit aluminium alloy, and the structure of long limit aluminium alloy and side aluminium alloy is the same, is connected fixedly by the corner connecting piece between long limit aluminium alloy and the side aluminium alloy", with the utility model discloses a technical scheme is different. Therefore, the above problems are further improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a split type ultra-thin backlight of LED, it can dismantle the PCB board with the lighting fixture and be connected, can dismantle the PCB board when the LED chip damages and get off to change, improve life-span and utilization ratio.

Another object of the utility model is to provide a split type ultra-thin backlight of LED, it has the structure advantage such as nimble, the security is high, the maintenance is convenient.

In order to achieve the above object, the utility model provides a split type ultra-thin backlight of LED, include:

the light guide plate is positioned above the lamp holder and embedded in (embedded into) the lamp holder;

the first LED chip and the second LED chip are respectively arranged in the lamp holder and are positioned on one side far away from the light guide plate;

the LED PCB is positioned below the lamp holder and embedded in the lamp holder (lower embedded), the first LED chip and the second LED chip are respectively electrically connected with the LED PCB, the PCB is positioned below the lamp holder and connected with the lamp holder, and the PCB is electrically connected with the LED PCB.

As a further preferable technical solution of the above technical solution, a driver is provided below the PCB, the driver is electrically connected to the PCB and the driver is used for driving the PCB.

As a further preferable technical solution of the above technical solution, a liquid crystal display is disposed above the light guide plate, and the first LED chip and the second LED chip project a light source to the liquid crystal display through the light guide plate.

As a further preferable technical solution of the above technical solution, a diffusion plate is further provided between the liquid crystal display and the light guide plate, the diffusion plate is closely attached to the light guide plate, and the diffusion plate diffuses the light source and projects the light source to the liquid crystal display.

As a further preferred technical solution of the above technical solution, a first rubber connector and a second rubber connector are arranged between the liquid crystal display and the PCB, one end of the first rubber connector and one end of the second rubber connector are respectively connected to the liquid crystal display, the other end of the first rubber connector and the other end of the second rubber connector are respectively connected to the PCB, the first rubber connector and the second rubber connector are further respectively connected to the lamp holder, and the first rubber connector and the second rubber connector are further respectively connected to the diffusion plate.

As a further preferable technical solution of the above technical solution, a first transition edge is provided at an outer side of the first rubber connector and is fixedly connected to the first transition edge, and the first transition edge is connected to the liquid crystal display screen, the first rubber connector and the PCB board in sequence from top to bottom;

and a second transition edge is arranged on the outer side of the second rubber connector and fixedly connected with the second transition edge, and the second transition edge is sequentially connected with the liquid crystal display screen, the second rubber connector and the PCB from top to bottom.

As a further preferable technical solution of the above technical solution, the PCB board is detachably connected to the first rubber connector, the second rubber connector, and the lamp holder, respectively.

Drawings

Fig. 1 is a schematic sectional structure view of a split ultra-thin LED backlight source of the present invention.

The reference numerals include: 10. a lamp holder; 20. a light guide plate; 30. a first LED chip; 31. a second LED chip; 40. a PCB board; 41. an LED PCB board; 50. a driver; 60. a liquid crystal display screen; 61. a diffusion plate; 70. a first rubber connector; 71. a second rubber connector; 80. a first ferry edge; 81. and a second transition edge.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

The utility model discloses a split type ultra-thin backlight of LED combines preferred embodiment below, makes further description to utility model's concrete embodiment.

Referring to fig. 1 of the drawings, fig. 1 is a schematic cross-sectional structure diagram of an LED split ultrathin backlight source of the present invention.

In the embodiment of the present invention, those skilled in the art will note that the liquid crystal display, lamp holder, etc. of the present invention can be regarded as the prior art.

Preferred embodiments.

The utility model discloses a split type ultra-thin backlight of LED, include:

the light guide plate 20 is positioned above the lamp holder 10 and embedded (upper embedded) in the lamp holder 10;

a first LED chip 30 and a second LED chip 31, wherein the first LED chip 30 and the second LED chip 31 are respectively disposed in the lamp holder 10 and located at a side away from the light guide plate 20;

PCB board 40 and LED PCB board 41, LED PCB board 41 is located the below of lighting fixture 10 and embedded in (lower embedded) lighting fixture 10, first LED chip 30 with second LED chip 31 respectively with LED PCB board 41 electric connection, PCB board 40 is located the below of lighting fixture 10 and with lighting fixture 10 is connected, PCB board 40 with LED PCB board 41 electric connection.

Specifically, a driver 50 is disposed below the PCB 40, the driver 50 is electrically connected to the PCB 40, and the driver 50 is used for driving the PCB 40.

More specifically, a liquid crystal display 60 is disposed above the light guide plate 20, and the first LED chip 30 and the second LED chip 31 project light to the liquid crystal display 30 through the light guide plate 20.

Further, a diffusion plate 61 is disposed between the liquid crystal display panel 30 and the light guide plate 20, the diffusion plate 61 is tightly attached to the light guide plate 20, and the diffusion plate 61 diffuses the light source and projects the light source to the liquid crystal display panel 60.

Further, a first rubber connector 70 and a second rubber connector 71 are arranged between the liquid crystal display screen 60 and the PCB 40, one end of the first rubber connector 70 and one end of the second rubber connector 71 are respectively connected with the liquid crystal display screen 60, the other end of the first rubber connector 70 and the other end of the second rubber connector 71 are respectively connected with the PCB 40, the first rubber connector 70 and the second rubber connector 71 are further respectively connected with the lamp holder 10, and the first rubber connector 70 and the second rubber connector 71 are further respectively connected with the diffusion plate 61.

Preferably, a first transition edge 80 is arranged at the outer side of the first rubber connector 70 and is fixedly connected with the first transition edge 80, and the first transition edge 80 is sequentially connected with the liquid crystal display screen 60, the first rubber connector 70 and the PCB 40 from top to bottom;

a second transition edge 81 is arranged on the outer side of the second rubber connector 71 and is fixedly connected with the second transition edge 81, and the second transition edge 81 is sequentially connected with the liquid crystal display screen 60, the second rubber connector 71 and the PCB 40 from top to bottom.

Preferably, the PCB 40 is detachably connected to the first rubber connector 70, the second rubber connector 71 and the lamp holder 10, respectively.

Preferably, the thickness of the LED split ultrathin backlight source is 2-5 cm.

It is worth mentioning that the technical features such as the liquid crystal display, the lamp bracket that the utility model discloses the patent application relates to should be regarded as prior art, and the concrete structure of these technical features, theory of operation and the control mode that may involve, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the utility model discloses an invention point is located, the utility model discloses a do not further specifically expand the detailing.

It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. An LED split ultrathin backlight, comprising:

the light guide plate is positioned above the lamp holder and embedded in the lamp holder;

the LED PCB is positioned below the lamp holder and embedded in the lamp holder, the first LED chip and the second LED chip are respectively and electrically connected with the LED PCB, the PCB is positioned below the lamp holder and connected with the lamp holder, and the PCB is electrically connected with the LED PCB;

a liquid crystal display screen is arranged above the light guide plate, and the first LED chip and the second LED chip project light sources to the liquid crystal display screen through the light guide plate;

a diffusion plate is arranged between the liquid crystal display screen and the light guide plate, the diffusion plate is tightly attached to the light guide plate, and the diffusion plate diffuses the light source and projects the light source to the liquid crystal display screen;

a first rubber connector and a second rubber connector are arranged between the liquid crystal display screen and the PCB, one end of the first rubber connector and one end of the second rubber connector are respectively connected with the liquid crystal display screen, the other end of the first rubber connector and the other end of the second rubber connector are respectively connected with the PCB, the first rubber connector and the second rubber connector are respectively connected with the lamp holder, and the first rubber connector and the second rubber connector are respectively connected with the diffusion plate;

a first transition edge is arranged on the outer side of the first rubber connector and fixedly connected with the first transition edge, and the first transition edge is sequentially connected with the liquid crystal display screen, the first rubber connector and the PCB from top to bottom;

a second transition edge is arranged on the outer side of the second rubber connector and fixedly connected with the second transition edge, and the second transition edge is sequentially connected with the liquid crystal display screen, the second rubber connector and the PCB from top to bottom;

the PCB board respectively with first rubber connector, second rubber connector, the lighting fixture can dismantle the connection.

2. The LED split ultrathin backlight source of claim 1, wherein a driver is arranged below the PCB, the driver is electrically connected with the PCB and is used for driving the PCB.