CN101556024B

CN101556024B - Lamp reflector of side light type back light die set

Info

Publication number: CN101556024B
Application number: CN2008100924220A
Authority: CN
Inventors: 翁伟胜
Original assignee: RONGJIN PRECISION TECHNOLOGY Co Ltd
Current assignee: RONGJIN PRECISION TECHNOLOGY Co Ltd
Priority date: 2008-04-09
Filing date: 2008-04-09
Publication date: 2011-05-04
Anticipated expiration: 2028-04-09
Also published as: CN101556024A

Abstract

The invention relates to a lamp reflector of a side light type back light die set, which is provided with a first clamping plate and a second clamping plate, wherein one end of the first clamping plate and the second clamping plate is connected with a side panel, and the other end forms an opening. The first clamping plate and the second clamping plate or at least one panel of the first clamping plate, the second clamping plate and the side panel is provided with a plurality of heat radiation holes, and the external side of the lamp reflector opposite to the heat radiation holes is provided with a medium with favorable thermal diffusivity and electrical conductivity. Therefore, heat energy and current generated by a lamp source of a side light type backlight die set are generate heat convection by the heat radiation holes of the lamp reflector, and the heat convection is transmitted to the medium, and the heat energy is transmitted to a back plate of the back light die set by the medium so as to achieve the effect of heat radiation and a grounding function, so that short circuit and damage caused by the overheating or static electricity of the lamp source are avoided, and the effect of prolonging the service life of the lamp source and the side light type back light die set is achieved.

Description

The lamp reflector of side-light type module backlight

[technical field]

The invention relates to the lamp reflector of a kind of side-light type module backlight, particularly about louvre is set on the lamp reflector, effectively lamp source heat energy is dispelled the heat and the structure of conductive earthing.

[background technology]

Generally being applied to the LCD of information device, is can be according to the demand of actual design, and selects to utilize the module framework backlight of straight-down negative or side-light type; See also shown in Fig. 1,2, it is the schematic diagram of side-light type module basic framework backlight, it mainly is to be provided with lamp source 2 in a lamp reflector 1, one side of this lamp reflector 1 is formed with an opening 11, this opening 11 can supply LGP 3 sleeves such as related item such as grade, with allow the light in lamp source 2 be able to from the ejaculation direction of expecting inject LGP 3 in, the exiting surface by LGP 3 penetrates again, to reach the effect of light source bright dipping.

Existing lamp reflector 1 is by above-mentioned structure; and the light source in lamp source 2 can be reflected; to allow the light of light source be able to throw towards the ejaculation direction of expection; yet; because lamp source 2 when luminous, can produce high heat in electrode tip 21 usually, and the electrode tip 21 in lamp source 2 is being in for a long time under the sultry user mode of high temperature; cause the damage in lamp source 2 quite easily, and then reduced the service life of lamp source 2 and whole module backlight.

Because the lamp reflector of existing current backlight module has above-mentioned disappearance, so, to how to produce the lamp reflector that the high temperature that can effectively the lamp source be produced is dispelled the heat, prolonging the service life of lamp source and module backlight, be problem that present dealer needed to be resolved hurrily in fact.

[summary of the invention]

The objective of the invention is to be to provide the lamp reflector of a kind of side-light type module backlight, the high temperature that can effectively the lamp source be produced is dispelled the heat, to prolong the service life of lamp source and module backlight.

Major technique means of the present invention are to provide the lamp reflector of a kind of side-light type module backlight, this lamp reflector has the first clipping plate and the second clipping plate, this first and second a clipping plate wherein end is connected with a side direction panel, the other end then forms an opening, wherein, be to be provided with several louvres on this first and second clipping plate or one of them panel of side direction panel three, and be to be provided with one to have the medium of good heat radiating and electric conductivity outside the lamp reflector with respect to this louvre place (as Copper Foil, aluminium foil, conduction patch ... Deng).

Beneficial effect of the present invention is: the lamp reflector that utilizes this side-light type module backlight, the heat energy and the static that the lamp source of side-light type module backlight can be produced, louvre by this lamp reflector, can form thermal convection current and path and thermal source is passed on this medium, and the thermal diffusivity that utilizes this medium is with thermal energy conduction other mechanisms to module backlight, as backboard (Back Cover), to reach the effect of heat radiation, and the function of formation ground connection, and then can avoid the lamp source to cause damage because of short circuit overheated or that static produced, to reach the effect that prolongs lamp source and side-light type module backlight service life.

[description of drawings]

Fig. 1 is the stereogram in existing lamp reflector and lamp source.

Fig. 2 is that the light that existing lamp reflector is applied to side-light type module backlight moves towards schematic diagram.

Fig. 3 is the stereogram of lamp reflector of the present invention.

Fig. 4 is the stereogram of another embodiment of lamp reflector of the present invention.

Fig. 5 is the schematic diagram that lamp reflector of the present invention is applied to side-light type module backlight.

Fig. 6 is another schematic diagram that lamp reflector of the present invention is applied to side-light type module backlight.

[main element symbol description]

1 lamp reflector, 11 openings, 12 reflecting layer

2 lamp sources

3 LGPs

4 lamp reflectors, 41,42 first and second clipping plates

43 side direction panels, 44 openings

45 louvres, 46 media

5 lamp sources

6 backboards

7 LGPs

[specific embodiment]

Be the purpose that enables to be easier to understand structure of the present invention and can reach, cooperate graphic explanation as the back now:

At first, see also shown in Figure 3, the lamp reflector 4 of side-light type of the present invention module backlight, mainly have the first clipping plate 41 and the second clipping plate 42, this first and second clipping plate 41,42 a wherein end is connected with a side direction panel 43, the other end then is formed with an opening 44 that can supply lamp source 5 to insert, wherein, on this first and

second clipping plate

41,42 or one of them panel of side direction panel 43 threes is to be provided with several louvres 45, this louvre 45 is when implementing, be to be evenly distributed on this lamp reflector 4, or the part is arranged at this lamp reflector 4 temperature highest points.The outside of this lamp reflector 4 is provided with a medium 46 with good thermal diffusivity and electric conductivity, this medium 46 is when implementing, can Copper Foil, aluminium foil or conduction patch ... wait and implement, and the contact-making surface of this medium 46 and lamp reflector 4 is the wet look of tool reflecting effect, or be coated with reflecting material, wherein, this medium 46 is when implementing, be can be comprehensive the outside that is arranged at lamp reflector 4, or the only local corresponding position of being located at these lamp reflector 4 tool louvres 45, as shown in Figure 4, whereby, to reach the purpose of saving material.

See also shown in Figure 5, lamp reflector 4 of the present invention is when implementing, it is the outside of this medium 46 being located at lamp reflector 4, so that louvre 45 is covered, and with lamp source 5 (as CCFL, LED optically focused rod or LED light emitting source) place lamp reflector 4 by opening 44, again lamp reflector 4 and lamp source 5 are placed the backboard (Back Cover) 6 of side-light type module backlight, this moment, this medium 46 was between the backboard 6 of lamp reflector 4 and side-light type module backlight, then with the object sleeve of relevant panel such as LGP 7 grades in the opening of lamp reflector 4, when lamp source 5 is luminous, light source can be by first of lamp reflector 4, two

clipping plates

41,42 and the reflection of the inwall of side direction panel 43 enter in the LGP 7, and the wet look of this medium 46 or be coated with the face of reflecting material, then can make light source obtain a good reflecting effect via this medium 46 by louvre 45, whereby, can reduce the loss of light source, and can allow the light in lamp source 5 be able to inject among the LGP 7 from the ejaculation direction of expecting, exiting surface by LGP 7 penetrates again, to reach the effect of light source bright dipping; And the heat energy that lamp source 5 is produced, then can form thermal convection currents and path and thermal source is passed on this medium 46 by the louvre 45 of lamp reflector 4, and utilize the high-termal conductivity and the electric conductivity of this medium 46, thermal source can be passed in the backboard 6 and be dispelled the heat, and reach the effect of ground connection, and then can avoid the lamp source because of overheated or because of short circuit that static produces causes damage, to prolong the service life of lamp source 5 and side-light type module backlight; In addition, when the material of backboard 6 is a metal when making, more can avoids the generation of static and disturb the effective utilization of module backlight.

See also shown in Figure 6 again, be the another embodiment of the present invention schematic diagram, when the backboard 6 of side-light type module backlight fails to coat this lamp reflector 4 fully, lamp reflector 4 can be resisted against the inboard of backboard 6, and this medium 46 is coated on the outside of lamp reflector 4 or backboard 6, whereby, can or be coated with the face of reflecting material by the wet look of this medium 46 equally, to obtain a good reflecting effect via medium 46 by the light source of louvre 45, and the heat energy that lamp source 5 is produced, then can be passed in this medium 46 by the louvre 45 of lamp reflector 4, and utilize the high-termal conductivity of this medium 46, thermal source can be passed to backboard 6 and be dispelled the heat, and then can avoid the lamp source to cause damage, to prolong the service life of lamp source 5 and side-light type module backlight because of overheated.

Effect of the present invention is, by on first and

second clipping plate

41,42 of lamp reflector 4 or one of them face of side direction panel 43 threes, several louvres 45 being set, and coat a medium 46 in the outside of lamp reflector 4, whereby, the heat energy that the lamp source 5 of side-light type module backlight can be produced, be passed in this medium 46 by the louvre 45 of lamp reflector 4 and give heat conduction and heat radiation, and then can avoid lamp source 5 to cause damage because of overheated, to reach the effect that prolongs lamp source 5 and side-light type module backlight service life.

In sum, the lamp reflector of the above-mentioned side-light type of the present invention module backlight can be reached the purpose and the effect thereof of institute's demand really, and meets the usability of industry.

Claims

1. the lamp reflector of a side-light type module backlight, this lamp reflector has the first clipping plate and the second clipping plate, this first and second a clipping plate wherein end is connected with a side direction panel, the other end then forms an opening, it is characterized in that: it is to be provided with several louvres that this first and second clipping plate or side direction panel three at least wherein have one side, and the outside of this lamp reflector is that directly contact is provided with one and has the good thermal diffusivity and the fin of electric conductivity, and this fin is covered louvre.

2. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this lamp source is a CCFL.

3. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this lamp source is LED optically focused rod or LED light emitting source.

4. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: the louvre of this lamp reflector is to be evenly distributed on this lamp reflector.

5. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: the louvre of this lamp reflector is that the part is arranged at this lamp reflector temperature highest point.

6. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: the fin of this lamp reflector is with the made paillon foil of the metal of tool thermal conductive resin.

7. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: the contact-making surface of this fin and lamp reflector is the wet look of tool reflecting effect.

8. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: the contact-making surface of this fin and lamp reflector is for being coated with reflecting material.

9. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is the comprehensive outside that is arranged at lamp reflector.

10. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is the outside of only being located at the louvre place of this lamp reflector.

11. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is an aluminium foil.

12. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is a Copper Foil.

13. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is the conduction patch.

14. the lamp reflector of side-light type as claimed in claim 1 module backlight is characterized in that: this fin is to contact with the backboard of side-light type module backlight.