CN2559013Y - Improved structure of backlight panel of liquid crystal display - Google Patents

Abstract

The utility model relates to an improved structure of a backlight plate of a liquid crystal display, which is characterized in that a liquid crystal display panel is arranged in front of a frame, a backlight plate is arranged at the rear of the liquid crystal display panel, a lamp tube is arranged at the rear of the backlight plate, a plurality of strip-shaped diffusion areas are printed on the backlight plate, a plurality of interference points are printed on the diffusion areas, and the interference points are distributed according to the brightness, the brighter area is denser and the particles are larger; and the lamp tubes are respectively arranged below the diffusion regions. Thus, destructive interference of light is generated to achieve uniform luminosity.

Description

Improved structure of backlight panel of liquid crystal display

technical field

The utility model relates to an improved structure of a backlight plate of a liquid crystal display, in particular to a structure of a backlight plate arranged behind a liquid crystal display panel.

Background technique

According to, the general liquid crystal display (LCD) is a very common display now, it has the advantages of power saving and easy to carry, and has the advantages of being easy to carry, so it can be used in portable electrical appliances, such as computers, mobile phones, PDAs and other electrical appliances on the product.

And the structure of liquid crystal display (LCD), a liquid crystal display panel is installed in the front of a frame, and a backlight panel is installed behind the liquid crystal display panel, and a lamp tube is installed on the side of the backlight panel, so that the light produced by the lamp tube can be borrowed. The diffused light from the backlight illuminates the liquid crystal display panel to display the picture.

The conventional backlight panel for evenly distributing the light source forms a light point for concentrating light on a transparent acrylic plate, so that when the light source enters the backlight panel, the light source can be evenly distributed by concentrating and reflecting the light point, In order to achieve the purpose of transmitting diffused light.

However, the conventional backlight panel achieves uniform luminosity by concentrating light, but the diffusion effect achieved by concentrating and reflecting is limited. At the center position, it has been severely attenuated; although there are light spots on the backlight that can be concentrated and reflected to increase the luminosity, the effect is limited, and the luminosity at the center position is still low, so the goal of uniform luminosity across the board cannot be achieved .

Contents of the invention

The purpose of this utility model is to provide an improved structure of the backlight panel of a liquid crystal display. The backlight panel mainly installed behind the liquid crystal display panel is printed with a plurality of strip-shaped diffusion areas, and a lamp tube is installed under each diffusion area. , so that the interference point on the diffusion area of the backlight plate can cause destructive interference of the light to achieve uniformity of luminosity.

The utility model is to provide an improved structure of a backlight panel of a liquid crystal display. A liquid crystal display panel is installed in front of a frame, a backlight panel is installed behind the liquid crystal display panel, and a lamp tube is installed behind the backlight panel. The backlight There are a plurality of strip-shaped diffusion areas printed on the board, and a plurality of interference points are printed in the diffusion area, and the interference points are distributed according to the brightness, the brighter areas are denser and the particles are larger; and in each diffusion area The above-mentioned lamp tubes are respectively installed below.

The utility model causes light to produce destructive interference to achieve uniform luminosity.

Description of drawings

Figure 1 is a schematic diagram of the assembly of the utility model.

Fig. 2 is the front view of the backlight panel of the present utility model.

Detailed ways

In order to make the utility model more clear and detailed, hereby coordinate the following diagrams and describe in detail as follows:

At first, referring to Fig. 1 and Fig. 2, the utility model installs a liquid crystal display panel 2 in front of a frame 1, and a backlight panel 3 is installed in the rear of the liquid crystal display panel 2, and a lamp tube is installed in the backlight panel 3 rear 4. The diffused light of the backlight panel 3 is irradiated on the liquid crystal display panel 2 to display the picture; it is characterized in that:

A plurality of elongated diffusion areas 31 are printed on the backlight plate 3, and the diffusion areas 31 are printed with a plurality of interference points 31a in a printing manner, and the interference points 31a are distributed according to brightness, and the brighter areas are brighter. The above-mentioned lamp tubes 4 are respectively installed under each diffusion area 31 so that the light can be destructively interfered by the interference points 31a on the diffusion area 31 of the backlight panel 3 to achieve uniform luminosity.

According to the above structure, since the backlight 3 is printed with a plurality of strip-shaped diffusion areas 31, and the lamp tube 4 is installed under each diffusion area 31, and the interference points 31a of the diffusion areas 31 are distributed according to the brightness , the brighter area is denser and the particles are larger. When the light shines on the interference point 31a of the diffusion area 3, the transmitted light will interfere with each other through each interference point 31a, and the light in front of the lamp tube 4 The area of the interference point 31a is the largest, and the area of the points on both sides gradually shrinks and spreads outwards, so that the luminosity transmitted through the backlight plate 3 can be uniformed, so it has a better use effect.

Based on the above, the disclosed structure of the utility model has never been seen before, and can indeed achieve the above-mentioned effects. Therefore, the requirements for a utility model patent are met, and an application for a utility model patent is filed according to law.

Claims (1)

1, a kind of backlight liquid crystal display plate structure-improved, install a LCD panel in a framework the place ahead, and be equiped with a backlight at the LCD panel rear, and at backlight rear installing fluorescent tube, it is characterized in that: the diffusion region that is printed with a plurality of strips on this backlight, and this diffusion region is printed with a plurality of interference points, and this interference point is according to lightness distribution, and brighter zone is closeer and particle is bigger; Install above-mentioned fluorescent tube respectively in each below, diffusion region again.

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