CN219512492U

CN219512492U - LCD backlight module based on seamless plano-concave lens array

Info

Publication number: CN219512492U
Application number: CN202320162331.XU
Authority: CN
Inventors: 马文明; 马文贞
Original assignee: Shenzhen Jingtai Liquid Crystal Display Technology Co ltd
Current assignee: Shenzhen Jingtai Liquid Crystal Display Technology Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-08-11
Anticipated expiration: 2033-02-09

Abstract

The utility model relates to the technical field of LCD backlight modules, in particular to an LCD backlight module based on a seamless plano-concave lens array, which comprises a backlight module, a liquid crystal panel, a light enhancement film, a light transmission film and a light guide plate, wherein the top of the light transmission film is provided with first plano-concave lenses in a staggered array, and the bottom of the light enhancement film is provided with clamping convex columns which are matched with the first plano-concave lenses arranged in the staggered array at the top of the light transmission film; through set up the block projection of the draw-in groove adaptation that sets up the crisscross array setting in light-transmitting film top at the bottom of light-increasing film and set up for the assembler can be more quick and accurate install the laminating of light-increasing film at the top of light-transmitting film when assembling backlight unit, thereby make can be more accurate quick laminate the installation with light-increasing film and light-transmitting film.

Description

LCD backlight module based on seamless plano-concave lens array

Technical Field

The utility model relates to the technical field of LCD backlight modules, in particular to an LCD backlight module based on a seamless plano-concave lens array.

Background

Along with the rapid development of electronic information technology in China, the development of liquid crystal display screens is faster and faster, the display effect is also continuously enhanced, the liquid crystal display screens are widely applied to digital clocks and watches, televisions, computers and other electronic equipment, and in the liquid crystal display screens, a backlight module has great influence on the luminous effect of the liquid crystal display screens.

At present, the LCD backlight module is assembled by adding the plano-concave lens layer and the adjacent layer, which cannot realize seamless lamination connection at one time, because of the reason that the plano-concave lens is added in the traditional LCD backlight module equipment in the market, so that more time and effort are required to be spent for carrying out seamless lamination on the film layers between the adjacent layers and then fixing the film layers.

Therefore, the utility model provides an LCD backlight module based on a seamless plano-concave lens array.

Disclosure of Invention

The utility model aims to provide an LCD backlight module based on a seamless plano-concave lens array, which solves the problem that the LCD backlight module between adjacent LCD backlight modules cannot be assembled in a rapid and accurate manner due to the addition of plano-concave lenses in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a LCD backlight unit based on seamless plano-concave lens array, includes backlight unit, liquid crystal panel, adds lustre to membrane, printing opacity membrane and light guide plate, the crisscross array in top of printing opacity membrane is provided with first plano-concave lens, add lustre to the bottom of membrane be provided with the crisscross first plano-concave lens adaptation's of the crisscross array in printing opacity membrane top block projection that sets up.

Preferably, the engaging convex columns are arranged at two sides of the bottom of the brightness enhancement film.

Preferably, a sealing frame is arranged at the periphery of the bottom of the brightness enhancement film.

Preferably, the sealing frame is equal in length with the clamping convex column.

Preferably, a second plano-concave lens is arranged inside the clamping convex column.

Compared with the prior art, the utility model has the beneficial effects that:

1. this kind of LCD backlight unit based on seamless plano-concave lens array sets up the block projection of the draw-in groove adaptation that forms with setting up the first plano-concave lens that sets up at the crisscross array in light-transmitting film top through the bottom at the light-increasing film for the assembler can install the laminating of light-increasing film at the top of light-transmitting film more quick and accurate when assembling the assembly to backlight unit, thereby makes can more accurate quick laminate the installation with light-increasing film and light-transmitting film.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a backlight module according to the present utility model;

FIG. 2 is a schematic diagram showing the separation structure of the light enhancement film and the light transmission film of the present utility model;

FIG. 3 is a schematic view of the back surface structure of the brightness enhancement film of the present utility model;

FIG. 4 is a schematic view showing a rear surface structure of a brightness enhancement film according to another embodiment of the present utility model;

fig. 5 is a schematic diagram showing a cross-sectional structure of the back surface of the light enhancement film of the present utility model.

The marks in the figure: 1. a backlight module; 2. a liquid crystal panel; 3. a light enhancement film; 301. sealing the frame; 302. the convex column is clamped; 303. a second plano-concave lens; 4. a light-transmitting film; 5. a light guide plate; 6. a first plano-concave lens.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a LCD backlight unit based on seamless plano-concave lens array, includes backlight unit 1, liquid crystal panel 2, adds lustre to membrane 3, printing opacity membrane 4 and light guide plate 5, and the crisscross array in top of printing opacity membrane 4 is provided with first plano-concave lens 6, adds lustre to the bottom of membrane 3 and is provided with the block projection 302 of the crisscross array in top of printing opacity membrane 4 setting of first plano-concave lens 6 adaptation.

Preferably, the engaging protruding columns 302 are disposed on both sides of the bottom of the brightness enhancement film 3.

Preferably, the bottom periphery of the brightness enhancement film 3 is provided with a sealing frame 301.

Preferably, the sealing frame 301 is equal in length to the engaging boss 302.

Preferably, the second plano-concave lens 303 is disposed inside the engaging convex column 302.

Example 1

As shown in fig. 1-3, the backlight module 1 is sequentially provided with the liquid crystal panel 2, the brightness enhancement film 3, the light-transmitting film 4 and the light guide plate 5 from top to bottom, and because the light source can be diffused, the first plano-concave lenses 6 are arranged on the top of the light-transmitting film 4 in a staggered array, and just because the arrangement of the first plano-concave lenses 6 causes the brightness enhancement film 3 arranged on the top of the light-transmitting film 4 to be inconvenient, fast and accurately attached together, in order to solve the problem, the bottom of the brightness enhancement film 3 is convexly provided with the clamping convex columns 302 with equal length with the first plano-concave lenses 6, and the clamping convex columns 302 are matched with the clamping grooves formed by the first plano-concave lenses 6 arranged in a staggered array, the sealing frame 301 arranged on the periphery of the bottom of the brightness enhancement film 3 can seal the edge joint of the brightness enhancement film 3 attached to the light-transmitting film 4 when the brightness enhancement film 3 is attached, and the assembly assembler can fast and accurately attach the brightness enhancement film 3 together by arranging the clamping convex columns 302 on the bottom of the brightness enhancement film 3.

Example two

As shown in fig. 4, in order to reduce the manufacturing cost, two engaging protruding columns 302 provided at the bottom of the brightness enhancement film 3 are provided at both sides of the bottom of the brightness enhancement film 3, and the engaging protruding columns 302 provided at both sides can achieve the purpose of precise assembly when the brightness enhancement film 3 and the light-transmitting film 4 are assembled by bonding.

In order to increase the light source diffusion more effectively, the second plano-concave lens 303 which is oriented the same as the first plano-concave lens 6 and is on the same horizontal line can be arranged in the engaging convex column 302 arranged at the top of the light enhancement film 3, so that the purpose of increasing the diffusion area of the diffused light source is achieved, and the light source diffusion effect is improved.

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

Claims

1. The utility model provides a LCD backlight unit based on seamless plano-concave lens array, includes backlight unit (1), liquid crystal panel (2), brightness enhancement film (3), printing opacity membrane (4) and light guide plate (5), its characterized in that: the light-transmitting film (4) is characterized in that first plano-concave lenses (6) are arranged on the top of the light-transmitting film (4) in a staggered array mode, and clamping convex columns (302) matched with the first plano-concave lenses (6) arranged on the top of the light-transmitting film (4) in a staggered array mode are arranged at the bottom of the light-increasing film (3).

2. The LCD backlight module based on the seamless plano-concave lens array according to claim 1, wherein: the clamping convex columns (302) are arranged on two sides of the bottom of the brightness enhancement film (3).

3. The LCD backlight module based on the seamless plano-concave lens array according to claim 1, wherein: the periphery of the bottom of the brightness enhancement film (3) is provided with a sealing frame (301).

4. The LCD backlight module based on the seamless plano-concave lens array according to claim 3, wherein: the sealing frame (301) is equal in length to the clamping convex column (302).

5. The LCD backlight module based on a seamless plano-concave lens array according to claim 1 or 2, wherein: the second plano-concave lens (303) is arranged in the clamping convex column (302).