CN202253128U - Backlight module and liquid crystal display - Google Patents
Backlight module and liquid crystal display Download PDFInfo
- Publication number
- CN202253128U CN202253128U CN2011202399605U CN201120239960U CN202253128U CN 202253128 U CN202253128 U CN 202253128U CN 2011202399605 U CN2011202399605 U CN 2011202399605U CN 201120239960 U CN201120239960 U CN 201120239960U CN 202253128 U CN202253128 U CN 202253128U
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- clamping part
- light source
- liquid crystal
- crystal panel
- module backlight
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Abstract
The utility model relates to a backlight module and a liquid crystal display. The backlight module comprises a front shell, a rear shell and a light source. The front shell comprises a first clamping part and a second clamping part which outwards and perpendicularly extends from the first clamping part, wherein the second clamping part is fixedly connected with the rear shell. The light source is arranged between the first clamping part and the rear shell and the back surface of the light source is in contact with the internal side surface of the second clamping part. A fin radiating structure is arranged in the second clamping part at a position corresponding to the back surface of the light source. By directly fixing the light-emitting diode (LED) light source on the front shell of a liquid crystal display all-in-one machine, the heat transfer path is simplified, the contact thermal resistance is reduced, the effective radiating area of the front shell is increased and the heat produced by the LED light source can be synchronously transferred to the front shell and the rear shell; by arranging the fin radiating structure on the front shell at the position corresponding to the back surface of the LED light source, the radiating efficiency is greatly improved; and by arranging a buffering piece with a honeycomb structure on the front shell at a position at which a liquid crystal display panel is clamped, the buffering performance of the liquid crystal display panel is improved.
Description
Technical field
The utility model relates to the LCD Technology field, relates in particular to a kind of module backlight and LCD.
Background technology
The module backlight of existing LCD all-in-one; Generally include LGP, light source, bonnet and heat sink, LGP is arranged on the bonnet, and heat sink is arranged between LGP and the bonnet; Light source is arranged on the side of LGP; Wherein, be fixed with fin on the circuit board of the light source of at least one side of LGP, fin is fixed on the bonnet through elastic component; After perhaps fin is selected the aluminium flake bending forming of high-termal conductivity for use, be fixed on the bonnet through heat-conducting glue.
In the said structure, light source can be selected LED (Light Emitting Diode, light emitting diode) lamp bar (Light-Bar), and fin can be selected aluminium extruded, and usually LED lamp bar will lock on the aluminium extruded, and then aluminium extruded is assembled on the bonnet dispels the heat.There is following defective in this kind structure:
1, because aluminium extruded is less with the efficiently radiates heat area of bonnet contact, the radiating effect of module backlight is affected;
2, from the light source to the aluminium extruded, in the heat radiation approach of bonnet, there is the repeatedly contact between interface again, cause thermal contact resistance bigger, further influence the radiating effect of module backlight.
The utility model content
The main purpose of the utility model is to provide a kind of module backlight and LCD, is intended to improve the radiating efficiency of LCD backlight module.
In order to achieve the above object; The utility model proposes a kind of module backlight; Comprise: fore shell, back cover and light source, said fore shell comprise first clamping part and second clamping part that is outwards vertically extended by said first clamping part, and said second clamping part is fixedly connected with said back cover; Said light source is between said first clamping part and back cover, and its back side contacts the medial surface of said second clamping part; The position at the corresponding said light source back side is provided with the fin radiator structure in said second clamping part.
Preferably, also comprise LGP and be positioned at the liquid crystal panel of said LGP top that said LGP is with respect to the opposite side of second retaining part in said light source, the light-emitting area setting of the contiguous light source of the incidence surface of LGP side; Said LGP and liquid crystal panel are all between said first clamping part and back cover; Said first clamping part inwardly is provided with the flange that is used for the said liquid crystal panel of clamping away from the lateral edges of said second clamping part; The upper surface of the said liquid crystal panel of said flange bottom contact.
Preferably, the tab that is used for coupling light is extended at said first clamping part middle part downwards, and said tab extends downward the space between said light source and the said liquid crystal panel.
Preferably, also comprise bolster, its cross section is the L type, is arranged in the cavity of said tab, flange and liquid crystal panel formation, and the surface of said bolster contacts a local upper surface and the side surface that said liquid crystal panel is positioned at first clamping part below respectively.
Preferably, said bolster is provided with the honeycomb that is used to increase shock-absorbing capacity.
Preferably, the shape of said honeycomb comprises one of following at least: circle, rectangle, triangle or polygon.
Preferably, said first clamping part and said second clamping part are one-body molded, and both outer surfaces constitute continuous arcwall face.
Preferably, said light source is fixed in the medial surface of said second clamping part, and the bottom of said light source contacts said back cover, and said light source is LED.
Preferably, said fin radiator structure comprises the groove of the lattice-shaped that is parallel to each other, and the direction that groove extends is parallel to the upper surface of back cover.
The utility model also proposes a kind of LCD, comprises aforesaid module backlight.
Module a kind of backlight and LCD that the utility model proposes; Led light source directly is fixed on the fore shell of LCD all-in-one, has simplified heat transfer path, when reducing thermal contact resistance; Increasing fore shell is the efficiently radiates heat area; The heat that led light source is produced can be passed on fore shell and the back cover synchronously, realizes that fore shell and back cover together dispel the heat, and increase radiating efficiency; Simultaneously, the position at the corresponding led light source back side is provided with the fin radiator structure on fore shell, further improves radiating efficiency.In addition, be provided with the bolster of honeycomb at the position of fore shell holding liquid crystal panel, increased the shock-absorbing capacity of liquid crystal panel, thereby improved the assembly performance of LCD all-in-one.
Description of drawings
Fig. 1 is the perspective view of the utility model module first embodiment backlight;
Fig. 2 is the side-looking enlarged drawing of the utility model module first embodiment backlight;
Fig. 3 is the schematic cross-section of Fig. 2;
Fig. 4 is the structural representation of bolster among the utility model module second embodiment backlight.
The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Below will combine accompanying drawing and embodiment, the technical scheme that realizes the utility model purpose will be elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please in the lump with reference to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the perspective view of the utility model module first embodiment backlight; Fig. 2 is the side-looking enlarged drawing of the utility model module first embodiment backlight; Fig. 3 is the schematic cross-section of Fig. 2.The module a kind of backlight that the utility model first embodiment proposes; Comprise: fore shell 1, back cover 2, light source 3, LGP 4, liquid crystal panel 5 and reflector plate 6; Wherein, fore shell 1 is positioned at the top of back cover 2, the approximate L type that is of the cross section of fore shell 1; The fore shell 1 of this L type comprises that first clamping part 11 and second clamping part, 12, the first clamping parts 11 are parallel with the upper surface of back cover 2; Second clamping part 12 is extended to form by the outboard end bending downwards of first clamping part 11; One medial surface of second clamping part 12 is connected with the lower surface of first clamping part 11, and the lower surface of the above-mentioned medial surface of this second clamping part 12 and first clamping part 11 constitutes the clamping face of clamping light source 3, LGP 4 and liquid crystal panel 5.The above-mentioned medial surface of second clamping part 12 is perpendicular to the upper surface of back cover 2, and the bottom of second clamping part 12 is fixedly connected with back cover 2 through sunk screw or screw 7.
All between first clamping part 11 and back cover 2, the back side of this light source 3 contacts the medial surface of second clamping part 12 for LGP 4, liquid crystal panel 5 and light source 3; LGP 4 is positioned at the opposite side of light source 3 with respect to second clamping part 12, the light-emitting area setting of the contiguous light source 3 of the incidence surface of LGP 4 sides; Liquid crystal panel 5 is positioned at the top of LGP 4; Reflector plate 6 is between LGP 4 and back cover 2.
Wherein, first clamping part 11 inwardly vertically convexes with the flange 111 that is used for holding liquid crystal panel 5 away from a lateral edges of second clamping part 12, the upper surface of flange 111 bottom contact liquid crystal panel 5.
In the present embodiment; In order to improve the radiating efficiency of LCD; Fore shell 1 and the material of back cover 2 by perfect heat-dissipating; Aluminium alloy etc. for example, and the position at corresponding light source 3 back sides is provided with fin radiator structure 121 in second clamping part 12, and this fin radiator structure 121 comprises the groove 1211 of the lattice-shaped that is parallel to each other; The direction that groove 1211 extends is parallel to the upper surface of back cover 2, and groove 1211 can also extend perpendicular to the upper surface of back cover 2 even with the upper surface of back cover 2 at an angle certainly.
In can be preferred embodiment, can make the partial heat energy of light source 3 be delivered on the back cover 2 the bottom contact back cover 2 of light source 3, secondary light source 3 dispels the heat.
In addition; In the present embodiment; Extend the tab 112 that is used for coupling light downwards at the middle part of first clamping part 11, this tab 112 extends downward the space between light source 3 and the liquid crystal panel 5, and the purpose that tab 112 is set can improve the light coupling efficient of light source 3; Can play the effect of reflection to light source 3 simultaneously, and need not the extra reflecting material that is provided with; In addition, tab 112 is set and plays better clamping action to liquid crystal panel 5.
Further; As shown in Figure 3; Present embodiment rocks because of LCD or other reasons receives impacting and damages for fear of liquid crystal panel 5, between fore shell 1 and liquid crystal panel 5, is provided with bolster 8, and the cross section of this bolster 8 is the L type; Particularly, this bolster 8 is set in the tab 112, flange 111 of fore shell 1 first clamping part 11 and the cavity that liquid crystal panel 5 forms.The surface of this bolster 8 respectively contact liquid crystal panel 5 be positioned at first clamping part, 11 belows local upper surface and a side surface; Promptly this bolster 8 wraps up the lateral margin that liquid crystal panel 5 is positioned at first clamping part 11, can reinforce liquid crystal panel 5 and for liquid crystal panel 5 buffering is provided.In order to improve cushioning effect, bolster 8 can adopt elastomeric material, such as rubber etc.
In addition, first clamping part 11 of fore shell 1 and second clamping part 12 can be one-body molded in the present embodiment, also can be the split structure, again through fixed connections such as screw or screws.
In the present embodiment, first clamping part 11 and both outer surfaces of second clamping part 12 constitute continuous arcwall face 13, make fore shell 1 be the camber line profile, thereby can increase the aesthetic property of LCD complete machine.
Said structure makes that the heat conduction path of light source 3 obtains simplifying; Thermal contact resistance reduces, and has increased fore shell 1 and has been the efficiently radiates heat area, relies on fore shell 1 and back cover 2 simultaneously light source 3 to be dispelled the heat; And fin radiator structure 121 is set on fore shell 1, improved the radiating efficiency of module backlight greatly.
See also Fig. 4, Fig. 4 is the structural representation of bolster among the utility model module second embodiment backlight.The utility model second embodiment proposes a kind of module backlight; Similar with above-mentioned first embodiment, its difference is that bolster 81 is provided with honeycomb 811 in the present embodiment; Can further improve the shock-absorbing capacity of bolster 8; Make liquid crystal panel avoid impact failure, this honeycomb 811 is a hole shape structure, and the shape of hole can be circle, rectangle, triangle, rhombus or other irregular polygons etc.Other parts of module backlight are identical with first embodiment.
In the said structure, led light source directly is fixed on the fore shell of LCD all-in-one, has simplified heat transfer path; When reducing thermal contact resistance; Increasing fore shell is the efficiently radiates heat area, and fore shell substitutes aluminium extruded of the prior art, and the heat that led light source is produced can be passed on fore shell and the back cover synchronously; Realize that fore shell and back cover together dispel the heat, and increase radiating efficiency; Simultaneously, the position at the corresponding led light source back side is provided with the fin radiator structure on fore shell, further improves radiating efficiency.In addition, be provided with the bolster 81 of honeycomb 811 at the position of fore shell holding liquid crystal panel, increased the shock-absorbing capacity of liquid crystal panel, thereby improved the assembly performance of LCD all-in-one.
In addition, the utility model also proposes a kind of LCD, and this LCD comprises the back module described in the foregoing description, is not described further at this.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (10)
1. module backlight comprises: fore shell, back cover and light source, it is characterized in that said fore shell comprises first clamping part and second clamping part that is outwards vertically extended by said first clamping part, and said second clamping part is fixedly connected with said back cover; Said light source is between said first clamping part and back cover, and its back side contacts the medial surface of said second clamping part; The position at the corresponding said light source back side is provided with the fin radiator structure in said second clamping part.
2. module backlight according to claim 1; It is characterized in that; Also comprise LGP and be positioned at the liquid crystal panel of said LGP top, said LGP is with respect to the opposite side of second retaining part in said light source, the light-emitting area setting of the contiguous light source of the incidence surface of LGP side; Said LGP and liquid crystal panel are all between said first clamping part and back cover; Said first clamping part inwardly is provided with the flange that is used for the said liquid crystal panel of clamping away from the lateral edges of said second clamping part; The upper surface of the said liquid crystal panel of said flange bottom contact.
3. module backlight according to claim 2 is characterized in that, the tab that is used for coupling light is extended at said first clamping part middle part downwards, and said tab extends downward the space between said light source and the said liquid crystal panel.
4. module backlight according to claim 3; It is characterized in that; Also comprise bolster; Its cross section is the L type, is arranged in the cavity of said tab, flange and liquid crystal panel formation, and the surface of said bolster contacts a local upper surface and the side surface that said liquid crystal panel is positioned at first clamping part below respectively.
5. module backlight according to claim 4 is characterized in that said bolster is provided with the honeycomb that is used to increase shock-absorbing capacity.
6. module backlight according to claim 5 is characterized in that, it is one of following that the shape of said honeycomb comprises at least: circle, rectangle, triangle or polygon.
7. according to each described module backlight among the claim 1-6, it is characterized in that said first clamping part and said second clamping part are one-body molded, and both outer surfaces constitute continuous arcwall face.
8. according to each described module backlight among the claim 1-6, it is characterized in that said light source is fixed in the medial surface of said second clamping part, the bottom of said light source contacts said back cover, and said light source is LED.
9. according to each described module backlight among the claim 1-6, it is characterized in that said fin radiator structure comprises the groove of the lattice-shaped that is parallel to each other, the direction that groove extends is parallel to the upper surface of back cover.
10. a LCD is characterized in that, comprises each described module backlight among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202399605U CN202253128U (en) | 2011-07-08 | 2011-07-08 | Backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202399605U CN202253128U (en) | 2011-07-08 | 2011-07-08 | Backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253128U true CN202253128U (en) | 2012-05-30 |
Family
ID=46114368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202399605U Withdrawn - After Issue CN202253128U (en) | 2011-07-08 | 2011-07-08 | Backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230588A (en) * | 2011-07-08 | 2011-11-02 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN107131449A (en) * | 2017-04-01 | 2017-09-05 | 中山市三晖照明科技有限公司 | A kind of high-power light distribution type LED lamp tool of paster |
-
2011
- 2011-07-08 CN CN2011202399605U patent/CN202253128U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230588A (en) * | 2011-07-08 | 2011-11-02 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN107131449A (en) * | 2017-04-01 | 2017-09-05 | 中山市三晖照明科技有限公司 | A kind of high-power light distribution type LED lamp tool of paster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130626 |
|
| RGAV | Abandon patent right to avoid regrant |