CN215833730U

CN215833730U - Direct-down LED assembly for liquid crystal display television

Info

Publication number: CN215833730U
Application number: CN202121553888.3U
Authority: CN
Inventors: 肖荣; 王帅
Original assignee: Sharp Electronics Research and Development Nanjing Co Ltd
Current assignee: Sharp Electronics Research and Development Nanjing Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-02-15
Anticipated expiration: 2031-07-08

Abstract

The utility model provides a direct-type LED assembly for a liquid crystal television, which comprises a reflective lens light bar and a refractive lens light bar; the refraction type lens lamp strips are arranged in multiple groups and are distributed at the middle position of the LED lamp assembly structure at intervals; the reflective lens lamp strips are provided with a plurality of groups and are independently and fixedly arranged at the positions of two sides of the refractive lens lamp strips. This subassembly is to the LCD TV about OD 20mm, under the condition that does not improve the cost, through set up refraction formula lens lamp strip in the intermediate position, reflection formula lamp strip structure is adopted to both sides, can improve central luminance more than 3%, and the four corners homogeneity can promote more than 10%, does not have under the condition of incremental cost simultaneously, and the performance can promote luminance, improves the picture level.

Description

Direct-down LED assembly for liquid crystal display television

Technical Field

The utility model belongs to the technical field of auxiliary accessories of liquid crystal televisions, and particularly relates to a direct-type LED assembly for a liquid crystal television.

Background

At present, a direct-type lcd television generally has an OD (distance from an LED to a liquid crystal display) of about 20mm, and the LED needs to be matched with a reflective lens, and when the LEDs are the same, the brightness of the lcd television using the reflective lens is lower than that using a refractive lens.

Disclosure of Invention

The technical scheme is as follows: in order to solve the above technical problems, the present invention provides a direct type LED module for a liquid crystal television, which comprises the following specific technical contents:

the LED component comprises a reflective lens light bar and a refractive lens light bar; the refraction type lens lamp strips are arranged in multiple groups and are distributed at the middle position of the LED lamp assembly structure at intervals; the reflective lens lamp strips are provided with a plurality of groups and are independently and fixedly arranged at the positions of two sides of the refractive lens lamp strips.

As an improvement, the reflective lens light bar comprises a reflective lens and a first light bar frame; the reflective lens is provided with a plurality of groups which are distributed in the light bar frame at intervals.

As an improvement, the refraction type lens lamp strip comprises a refraction type lens and a second lamp strip frame; the refraction type lens is provided with a plurality of groups and is distributed in the second light bar frame at intervals, wherein the refraction type lens is of a circular structure.

As an improvement, the reflective lens specifically comprises a bottom plate, a middle protrusion and an edge structure; the bottom plate is of a regular-shaped structure, can be of a square, diamond, circular, trapezoid or structure, and is fixedly arranged on the first light bar frame through a plurality of groups of mechanical connecting pieces; the middle protrusion and the edge structure are of a two-layer step structure.

As an improvement, the middle bulge is of an inverted cone-shaped smooth upper surface structure, the outer surface of the side wall is of a frosted pattern structure, and the edge structure is of a frosted surface structure with surface friction.

As an improvement, the refraction type lens is of a circular structure, the surface of the refraction type lens is of a smooth structure, the size diameter of the refraction type lens is 14-16mm, and the bottom of the refraction type lens is provided with a grid structure.

As an improvement, the lens further comprises a luminous body and a conical hole, wherein the conical hole is arranged at the position of the refractive lens grid structure; the luminous body is installed in the top of bell mouth for send out the light and spread.

Has the advantages that: the utility model provides an LED assembly, aiming at a liquid crystal television with an OD (optical density) of about 20mm, under the condition of not increasing the cost, the central brightness can be improved by more than 3 percent by arranging a refraction type lens lamp strip at the middle position and adopting a reflection type lamp strip structure at two sides, the uniformity of four corners can be improved by more than 10 percent, and meanwhile, the performance can be improved to improve the brightness and improve the picture level under the condition of not increasing the cost.

Drawings

FIG. 1 is a schematic diagram of the structure of the assembly of the present invention.

Fig. 2 is a schematic structural diagram of a refractive lens of the present invention, where (a) is a schematic structural diagram of an end face, and (b) is a structural diagram of a bottom face after a fixing member is installed.

FIG. 3 is a perspective view of a reflective lens of the present invention.

FIG. 4 is a cross-sectional view of a reflective lens of the present invention.

In the figure: reflective lens lamp strip 1, refraction formula lens lamp strip 2, reflective lens 5, first lamp strip frame 6, refraction formula lens 3, second lamp strip frame 4, bottom plate 7, middle protruding 8, marginal structure 9.

Detailed Description

The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

The LED assembly for the direct-type liquid crystal television comprises a reflective lens light bar 1 and a refractive lens light bar 2; the refractive lens light bars 2 are arranged in multiple groups and distributed at the middle position of the LED lamp assembly structure at intervals; the reflective lens light bar 1 is provided with a plurality of groups and is independently and fixedly arranged at the positions of two sides of the refractive lens light bar 2.

The above structure is to improve the picture of 4 weeks and four corners by using the LED with the refraction lens in the middle. The left and right edges use LEDs with reflective lenses.

The reflective lens light bar 1 comprises a reflective lens 5 and a first light bar frame 6; the reflective lenses 5 are provided with a plurality of groups and are distributed in the first lamp strip frame 6 at intervals.

The refraction type lens light bar 2 comprises a refraction type lens 3 and a second light bar frame 4; the refractive lens 3 is provided with a plurality of groups, and is distributed in the second light bar frame 4 at intervals, wherein the refractive lens 4 is of a circular structure.

The reflective lens 5 specifically comprises a bottom plate 7, a middle protrusion 8 and an edge structure 9; the bottom plate 7 is of a square, rhombic and isotactic structure and is fixedly arranged on the first light bar frame 6 through a plurality of groups of mechanical connecting pieces; the middle protrusion 8 and the edge structure 9 are of a two-layer stepped structure.

The middle bulge 8 is an inverted cone-shaped smooth upper surface structure, the outer surface of the side wall is a frosted pattern structure, and the edge structure 9 is a frosted surface structure with surface friction. The side line is frosted surface structure, can the diffusion light for the distribution of light is more even.

The refraction type lens 3 is of a circular structure, the surface of the refraction type lens is of a smooth structure, the size diameter of the refraction type lens is 14-16mm, and the bottom of the refraction type lens is provided with a grid structure.

The lens also comprises a luminous body and a conical hole, wherein the conical hole is arranged at the position of the grid structure of the refraction type lens 3; the luminous body is installed in the top of bell mouth for send out the light and spread.

This LED subassembly is to the LCD TV about OD 20mm, under the condition that does not improve cost, through set up refraction formula lens lamp strip in the intermediate position, reflection formula lamp strip structure is adopted to both sides, can improve central luminance more than 3%, and the four corners homogeneity can promote more than 10%, does not have under the condition of incremental cost simultaneously, and the performance can promote luminance, improves the picture level.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A LED component for a direct-type liquid crystal television is characterized in that: the LED assembly comprises a reflective lens lamp strip (1) and a refractive lens lamp strip (2); the refraction type lens lamp strips (2) are arranged in multiple groups and are distributed at the middle position of the LED lamp assembly structure at intervals; the reflection type lens lamp strips (1) are provided with a plurality of groups and are independently and fixedly arranged at the positions of two sides of the refraction type lens lamp strips (2).

2. The LED module for direct type lcd tv set according to claim 1, wherein: the reflective lens light bar (1) comprises a reflective lens (5) and a light bar frame (6); the reflective lenses (5) are provided with a plurality of groups and are distributed in the first lamp strip frame (6) at intervals.

3. The LED module for direct type lcd tv set according to claim 1, wherein: the refraction type lens light bar (2) comprises a refraction type lens (3) and a second light bar frame (4); the refraction type lens (3) is provided with a plurality of groups which are distributed in the second lamp strip frame (4) at intervals, wherein the refraction type lens (3) is of a circular structure.

4. The LED module for direct type lcd tv set according to claim 2, wherein: the reflective lens (5) specifically comprises a bottom plate (7), a middle protrusion (8) and an edge structure (9); the bottom plate (7) is of a regular-shaped structure and is fixedly arranged on the first light bar frame (6) through a plurality of groups of mechanical connecting pieces; the middle protrusion (8) and the edge structure (9) are of a two-layer step structure.

5. The LED module for direct type LCD TV according to claim 4, wherein: the middle bulge (8) is of an inverted cone-shaped smooth upper surface structure, the outer surface of the side wall is of a frosted pattern structure, and the edge structure (9) is of a frosted surface structure with surface friction degree.

6. The LED module for direct type LCD TV according to claim 3, wherein: the refraction type lens (3) is of a circular structure, the surface of the refraction type lens is of a smooth structure, the size diameter of the refraction type lens is 14-16mm, and the bottom of the refraction type lens is provided with a grid structure.

7. The LED module for direct type LCD TV according to claim 6, wherein: the lens also comprises a luminous body and a conical hole, wherein the conical hole is arranged at the position of the grid structure of the refraction type lens (3); the luminous body is installed in the top of bell mouth for send out the light and spread.