CN212009228U

CN212009228U - Direct type backlight source and assembly thereof

Info

Publication number: CN212009228U
Application number: CN202020827949.XU
Authority: CN
Inventors: 孙爱丽
Original assignee: Hubei Ruxin Electronic Co ltd
Current assignee: Hubei Ruxin Electronic Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-11-24
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to a light source technical field specifically is a straight following formula light source in a poor light and subassembly thereof, including a plurality of light source subassemblies that are the matrix distribution, the light source subassembly includes PCB board, light source and linear lens, the PCB board pastes the light source of a certain quantity along the mode subsides that length direction used the soldering tin paster, fixed linear lens through glue on the PCB board, linear lens cover on the light source to align with the light source central line. This straight following formula light source in a poor light and subassembly thereof adopts the light source to adorn in mixture as straight following formula light source in a poor light, and linear lens adopts the principle of total reflection formula or refraction to enlarge light emitting angle's optical lens, has reduced the consumption of PCB board, has reduced the lens consumption, reduces the paster cost, promotes reflection efficiency, has promoted light source efficiency, has very strong practicality.

Description

Direct type backlight source and assembly thereof

Technical Field

The utility model relates to a light source technical field in a poor light specifically is a straight following formula light source in a poor light and subassembly thereof.

Background

The backlight source of the liquid crystal display device is divided into a direct type and an edge type, wherein the direct type is that the LED crystal grains and the lens are uniformly arranged behind the liquid crystal panel to be used as a luminous source, so that the backlight can be uniformly transmitted to the whole screen. The side-light type LED backlight source is characterized in that LED crystal grains are arranged at the peripheral edge of a liquid crystal screen, and a light guide plate is matched to transmit light emitted from the edge of the screen to an area in the center of the screen through the light guide plate when an LED backlight module emits light.

The direct type liquid crystal display device comprises a backlight module, a liquid crystal panel, a driving module and a complete machine rear cover; the backlight module mainly comprises a back plate, a reflector plate, an LED lamp bar, a diffusion plate and an optical diaphragm; the LED lamp strip comprises a PCB, LED lamp beads and an optical lens; the driving module comprises a power panel and a main board. In the design of the existing direct type liquid crystal display device, the LED lamp beads are matched with the corresponding unified optical lens, and then matched with the upper reflector plate, the light energy is transmitted to the liquid crystal panel through the diffusion plate and the optical membrane, and the light mixing distances of all the LED chips are the same. The driving module is locked and attached to the back face of the back plate through screws, and a space for accommodating the driving module is formed between the rear cover of the whole machine and the back plate. The size of the direct type liquid crystal display device in the thickness direction mainly comprises the light mixing distance of the LED chip in the back plate backlight cavity and the thickness of the driving module.

What present straight following formula was shaded and is adopted is that LED lamp collocation lens that is equivalent to the pointolite realizes even mixed light, and it exists when the quantity of lamp increases (surpassing 100pcsLED with 55 cun), can lead to PCB to consume the volume and increase, and lens consume the volume and increase, and the paster cost rises, and the reflector plate digs the reflection efficiency that the hole too caused and reduces, and the reflector plate cost rises, and lamp pearl efficiency reduces to and the assembly cost that too much lamp strip caused rises etc..

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a straight following formula light source in a poor light and subassembly thereof 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 straight following formula light source in a poor light and subassembly thereof, includes a plurality of light source subassemblies that are the matrix distribution, and the light source subassembly includes PCB board, light source and linear lens, the PCB board pastes the light source of a certain amount along the mode that length direction used the soldering tin paster, be fixed with linear lens through glue on the PCB board, linear lens covers on the light source to align with the light source central line.

Preferably, the light source is an LED light source or a CCFL light source.

Preferably, when the light source adopts an LED light source, a plurality of LEDs are arranged side by side or a multi-chip molding and packaging mode is adopted.

Preferably, the linear lens is an optical lens for enlarging a light emitting angle by using a total reflection or refraction principle.

Preferably, the material of the linear lens is PMMA material or PC material.

Preferably, the glue is made of epoxy resin materials or acrylic resin materials.

Compared with the prior art, the beneficial effects of the utility model are that: this straight following formula light source in a poor light and subassembly thereof adopts the light source to adorn in mixture as straight following formula light source in a poor light, and linear lens adopts the principle of total reflection formula or refraction to enlarge light emitting angle's optical lens, has reduced the consumption of PCB board, has reduced the lens consumption, reduces the paster cost, promotes reflection efficiency, has promoted light source efficiency, has very strong practicality.

Drawings

Fig. 1 is a schematic structural view of a light source assembly of the present invention;

fig. 2 is a schematic view of the assembly structure of a single light source assembly of the present invention;

fig. 3 is a schematic side view of the structure of fig. 2 according to the present invention.

In the figure: PCB board 1, light source 2, linear lens 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a straight following formula backlight source and subassembly thereof, includes a plurality of light source subassemblies that are the matrix distribution, and the light source subassembly includes PCB board 1, light source 2 and linear lens 3, and PCB board 1 pastes a certain amount of light source 2 along the mode that length direction used the soldering tin paster, and light source 2 is LED light source or CCFL light source, adopts many LEDs to realize side by side or the mode that adopts multi-chip shaping encapsulation when light source 2 adopts the LED light source.

The PCB board 1 is fixed with a linear lens 3 through glue, the glue is made of epoxy resin materials or acrylic resin materials, the linear lens 3 is an optical lens which expands the light emitting angle by adopting the principle of total reflection or refraction, the linear lens 3 is made of PMMA materials or PC materials, and the linear lens 3 covers the light source 2 and is aligned with the central line of the light source 2.

This straight following formula backlight source and subassembly adopts light source 2 as straight following formula backlight source, and collocation linear lens 3 loads in mixture, and linear lens 3 adopts the principle of total reflection formula or refraction to enlarge the optical lens of luminous angle, has reduced PCB board 1's consumption, has reduced the lens consumption, reduces the paster cost, promotes reflection efficiency, has promoted light source efficiency, has very strong practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straight following formula backlight source and subassembly thereof, includes a plurality of light source subassemblies that are the matrix distribution, and the light source subassembly includes PCB board (1), light source (2) and linear lens (3), its characterized in that: PCB board (1) pastes a certain amount of light source (2) along length direction's mode that uses the soldering tin paster, fixed linear lens (3) through glue on PCB board (1), linear lens (3) cover on light source (2) to align with light source (2) central line.

2. The direct type backlight source and the assembly thereof according to claim 1, wherein: the light source (2) is an LED light source or a CCFL light source.

3. A direct type backlight source and its components as claimed in claim 2, wherein: when the light source (2) adopts an LED light source, a plurality of LEDs are arranged side by side or a multi-chip molding and packaging mode is adopted.

4. The direct type backlight source and the assembly thereof according to claim 1, wherein: the linear lens (3) is an optical lens which expands the light-emitting angle by adopting a total reflection type or refraction principle.

5. The direct type backlight source and the assembly thereof according to claim 4, wherein: the linear lens (3) is made of PMMA material or PC material.

6. The direct type backlight source and the assembly thereof according to claim 1, wherein: the glue is made of epoxy resin materials or acrylic resin materials.