CN201187733Y - Side light type backlight module unit - Google Patents

Abstract

The utility model discloses a backlight module for a liquid crystal display device. The backlight module comprises a light guiding plate, two lighting tubes and reflecting sheets, wherein, he light guiding plate comprises two lighting-tube installing holes which are respectively positioned on both side edges of the light guiding plate; the two lamp pipes are respectively positioned in the two lighting-tube installing holes; the reflecting sheets surround the light guiding plate trilaterally. The backlight module provided by the utility model has the advantages that the luminous efficiency of the lighting tubes and the utilization ratio of the light ray are improved, and the cost is saved simultaneously.

Description

Side-light type module backlight

Technical field

The utility model relates to a kind of backlight liquid crystal display module, particularly a kind of module backlight that improves the fluorescent tube light utilization.

Background technology

The function of module backlight is to provide the area source that brightness is abundant and be evenly distributed to the LCD panel.Fig. 1 is the schematic diagram of traditional side-light type module backlight, and as shown in the figure, module backlight mainly comprises LGP 1, reflector plate 2, fluorescent tube 3 and lamp tube cover 4, and wherein, fluorescent tube 3 is arranged at two incidence surface sides of this LGP respectively.The effect of LGP is to guide the light transmission direction, and light is evenly penetrated by the exiting surface of LGP.

Behind the certain voltage of given fluorescent tube 3, fluorescent tube 3 beginnings are luminous, its light part directly enters LGP 1, another enters LGP 1 after than the reflection of many parts by lamp tube cover 4, in this process, owing to need the reflection of lamp tube cover 4, understand some light and be absorbed and see through, reduced the utilization rate of light.

The utility model content

The purpose of this utility model provides a kind of module backlight, to the absorption of fluorescent tube light and the problem that penetrates, improves the utilization rate of light when solving the light that sends owing to lamp tube cover reflection fluorescent tube.

For achieving the above object, module backlight of the present utility model comprises: LGP, and it includes two fluorescent tube installing holes, and described two fluorescent tube installing holes lay respectively at two side portion; Two fluorescent tubes place respectively in described two fluorescent tube installing holes; Reflector plate, three bread enclose described LGP.

The two ends of described fluorescent tube are provided with the plastic mount that is used for fixing and locatees described fluorescent tube.

Described plastic mount comprises: the fluorescent tube patchhole, be embedded with conductive copper sheet clamping head, and make the electrode of fluorescent tube can directly insert described conductive copper sheet clamping head; The lamp tube wire hole is used to locate the lamp tube wire that is connected with described conductive copper sheet clamping head.

Described plastic mount also comprises reference column, is positioned at the bottom of described plastic mount.

Module backlight of the present utility model by directly open circular hole on LGP, makes the fluorescent tube can be directly luminous in LGP, thereby has improved the luminous efficiency and the light utilization of fluorescent tube; Module backlight of the present utility model has saved lamp tube cover, has reduced the required material of LGP, thereby has provided cost savings.

Description of drawings

Fig. 1 is the schematic diagram of traditional side-light type module backlight;

Fig. 2 is the schematic diagram of module backlight of the present utility model;

Fig. 3 is that the A-A of module backlight among Fig. 2 is to analysing and observe enlarged diagram;

Fig. 4 is the schematic perspective view of fluorescent tube high-pressure side plastic mount;

Fig. 5 is the front view of fluorescent tube high-pressure side plastic mount among Fig. 4;

Fig. 6 is the upward view of fluorescent tube high-pressure side plastic mount among Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Fig. 2 is the schematic diagram of module backlight of the present utility model, Fig. 3 is that the A-A of module backlight among Fig. 2 is to analysing and observe enlarged diagram, as shown in the figure, module backlight of the present utility model, comprise: LGP 10, it includes two fluorescent tube installing holes 11, and described two fluorescent tube installing holes 11 lay respectively at two side portion of LGP 10; Two fluorescent tubes 30 place respectively in described two fluorescent tube installing holes 11; Reflector plate 20, three bread enclose described LGP 10.

Last two fluorescent tube installing holes 11 on the LGP 10, make the fluorescent tube 30 can be directly by passing in two fluorescent tube installing holes 11 on the LGP 10, directly thereby luminous luminous efficiency and the light utilization that has improved fluorescent tube in LGP 10 can also have been saved the cost of whole front panel.LGP 10 adopts the technology manufacturing of ejection formation, and described two fluorescent tube installing holes 11 are directly made when ejection formation is made LGP 10.Two fluorescent tube installing holes 11 are respectively near two sides of LGP 10.

Reflector plate 20 3 bread enclose described LGP 10, and promptly reflector plate 20 surrounds two sides on bottom surface and two fluorescent tube 30 sides of LGP 10, after the light that fluorescent tube 30 is sent reflects through reflector plate 20, can only be that exiting surface penetrates above LGP 10.

The two ends of fluorescent tube 30 are that high-pressure side and low-pressure end are used plastic mount 50 respectively, 60 fixing and location, described high-pressure side plastic mount 50 is the same with the structure of low-pressure end plastic mount 60, and its size is that the space of location, high-low pressure two ends varies in size can be different according to needs are installed.Traditional module backlight generally adopts rubber cap (Rubber Cap) to fix and locatees fluorescent tube, adopts the better plastic mount of hardness in the utility model.

Be that example illustrates high-pressure side and low-pressure end plastic mount 50 with high-pressure side plastic mount 50 below, 60 structure: Fig. 4 is the schematic perspective view of fluorescent tube high-pressure side plastic mount, Fig. 5 is the front view of fluorescent tube high-pressure side plastic mount among Fig. 4, and Fig. 6 is the upward view of fluorescent tube high-pressure side plastic mount among Fig. 4.As shown in the figure, plastic mount 50 includes fluorescent tube patchhole 51, lamp tube wire hole 54 and reference column 53, and described fluorescent tube patchhole 51 is embedded with conductive copper sheet clamping 52, makes the electrode of fluorescent tube 30 can directly insert conductive copper sheet clamping 52.Conductive copper sheet clamping 52 is connected with lead in the lamp tube wire hole 54.When fluorescent tube is installed, only need electrode with fluorescent tube 30 directly insert conductive copper sheet clamping 52, just fluorescent tube 30 and lead can be communicated with, provide stable light source to module backlight.Reference column 53 is positioned at the bottom of plastic mount 50, is used to be supported in backboard or glue frame, and fluorescent tube is played positioning action.

The foregoing description only is used to illustrate the utility model; those skilled in the art can make various modifications or replacement to embodiment of the present utility model; and not departing from spirit of the present utility model, these modifications or replacement should be considered as dropping in the protection domain of the present utility model.

Claims (4)

1, a kind of module backlight is characterized in that, comprising:

LGP, it includes two fluorescent tube installing holes, and described two fluorescent tube installing holes lay respectively at two side portion;

Two fluorescent tubes place respectively in described two fluorescent tube installing holes;

Reflector plate, three bread enclose described LGP.

2, module backlight as claimed in claim 1 is characterized in that, the two ends of described fluorescent tube are provided with the plastic mount that is used for fixing and locatees described fluorescent tube.

3, module backlight as claimed in claim 2 is characterized in that, described plastic mount comprises:

The fluorescent tube patchhole is embedded with conductive copper sheet clamping head, makes the electrode of fluorescent tube can directly insert described conductive copper sheet clamping head;

The lamp tube wire hole is used to locate the lamp tube wire that is connected with described conductive copper sheet clamping head.

4, module backlight as claimed in claim 2 is characterized in that, described plastic mount also comprises reference column, is positioned at the bottom of described plastic mount.

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